diff --git a/toolchain/check/testdata/array/basics.carbon b/toolchain/check/testdata/array/basics.carbon
index c041845c076d..2b41a274d387 100644
--- a/toolchain/check/testdata/array/basics.carbon
+++ b/toolchain/check/testdata/array/basics.carbon
@@ -181,8 +181,8 @@ var a: array(1, 1);
 // CHECK:STDOUT:   %tuple.type.14a: type = tuple_type (%tuple.type.734, %tuple.type.734) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.280: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4f: %T.as.Destroy.impl.Op.type.280 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.dd4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.77d: %T.as.Destroy.impl.Op.type.dd4 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -221,7 +221,7 @@ var a: array(1, 1);
 // CHECK:STDOUT:     %array_type: type = array_type %int_2, %.loc10_24.2 [concrete = constants.%array_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %array_type = bind_name v, %v.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.d4f
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.77d
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c6b = addr_of %v.var
@@ -240,10 +240,10 @@ var a: array(1, 1);
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (%empty_tuple.type, %empty_tuple.type, %empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %ptr.7fe: type = ptr_type %tuple.type [concrete]
 // CHECK:STDOUT:   %pattern_type.8c1: type = pattern_type %tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.073: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.dce: %T.as.Destroy.impl.Op.type.073 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.c60: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f81: %T.as.Destroy.impl.Op.type.c60 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.8bc: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f13: %T.as.Destroy.impl.Op.type.8bc = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.7f3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.c66: %T.as.Destroy.impl.Op.type.7f3 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -279,12 +279,12 @@ var a: array(1, 1);
 // CHECK:STDOUT:     %.loc8_21.6: type = converted %.loc8_21.2, constants.%tuple.type [concrete = constants.%tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %tuple.type = bind_name b, %b.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.dce
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.f13
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc8: %ptr.7fe = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8: init %empty_tuple.type = call %bound_method.loc8(%addr.loc8)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.f81
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.c66
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc7: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc7: %ptr.20b = addr_of %a.var
@@ -306,11 +306,11 @@ var a: array(1, 1);
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %array_type [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%empty_tuple) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.23e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f19: %T.as.Destroy.impl.Op.type.23e = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.aa5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.735: %T.as.Destroy.impl.Op.type.aa5 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.652: type = ptr_type %tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.471: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.688: %T.as.Destroy.impl.Op.type.471 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.cd3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.6a6: %T.as.Destroy.impl.Op.type.cd3 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -342,12 +342,12 @@ var a: array(1, 1);
 // CHECK:STDOUT:     %array_type: type = array_type %int_1, %.loc8_17.2 [concrete = constants.%array_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %t: ref %array_type = bind_name t, %t.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_27: <bound method> = bound_method %.loc8_27.2, constants.%T.as.Destroy.impl.Op.f19
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_27: <bound method> = bound_method %.loc8_27.2, constants.%T.as.Destroy.impl.Op.735
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_27: <bound method> = bound_method %.loc8_27.2, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc8_27: %ptr.652 = addr_of %.loc8_27.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8_27: init %empty_tuple.type = call %bound_method.loc8_27(%addr.loc8_27)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_3: <bound method> = bound_method %t.var, constants.%T.as.Destroy.impl.Op.688
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_3: <bound method> = bound_method %t.var, constants.%T.as.Destroy.impl.Op.6a6
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_3: <bound method> = bound_method %t.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_3: %ptr.b99 = addr_of %t.var
diff --git a/toolchain/check/testdata/array/bound_values.carbon b/toolchain/check/testdata/array/bound_values.carbon
index 1b0b48c4838f..b5914c8cdf00 100644
--- a/toolchain/check/testdata/array/bound_values.carbon
+++ b/toolchain/check/testdata/array/bound_values.carbon
@@ -72,11 +72,11 @@ var b: array(1, 39999999999999999993);
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %AddWith.type.d7d: type = facet_type <@AddWith, @AddWith(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %AddWith.type.4c0: type = facet_type <@AddWith, @AddWith(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %AddWith.Op.type.0ee: type = fn_type @AddWith.Op, @AddWith(Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %AddWith.impl_witness.568: <witness> = impl_witness imports.%AddWith.impl_witness_table.255 [concrete]
-// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.d7d = facet_value Core.IntLiteral, (%AddWith.impl_witness.568) [concrete]
-// CHECK:STDOUT:   %.e1a: type = fn_type_with_self_type %AddWith.Op.type.0ee, %AddWith.facet [concrete]
+// CHECK:STDOUT:   %AddWith.impl_witness.b4f: <witness> = impl_witness imports.%AddWith.impl_witness_table.d31 [concrete]
+// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.4c0 = facet_value Core.IntLiteral, (%AddWith.impl_witness.b4f) [concrete]
+// CHECK:STDOUT:   %.d73: type = fn_type_with_self_type %AddWith.Op.type.0ee, %AddWith.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.AddWith.impl.Op.type: type = fn_type @Core.IntLiteral.as.AddWith.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.AddWith.impl.Op: %Core.IntLiteral.as.AddWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.AddWith.impl.Op.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.AddWith.impl.Op [concrete]
@@ -86,8 +86,8 @@ var b: array(1, 39999999999999999993);
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Core.import_ref.abd9 = import_ref Core//prelude/operators/arithmetic, loc95_57, unloaded
-// CHECK:STDOUT:   %Core.import_ref.d10: %Core.IntLiteral.as.AddWith.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc96_42, loaded [concrete = constants.%Core.IntLiteral.as.AddWith.impl.Op]
-// CHECK:STDOUT:   %AddWith.impl_witness_table.255 = impl_witness_table (%Core.import_ref.abd9, %Core.import_ref.d10), @Core.IntLiteral.as.AddWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.60c: %Core.IntLiteral.as.AddWith.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc96_42, loaded [concrete = constants.%Core.IntLiteral.as.AddWith.impl.Op]
+// CHECK:STDOUT:   %AddWith.impl_witness_table.d31 = impl_witness_table (%Core.import_ref.abd9, %Core.import_ref.60c), @Core.IntLiteral.as.AddWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -96,7 +96,7 @@ var b: array(1, 39999999999999999993);
 // CHECK:STDOUT:     %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem1: %.e1a = impl_witness_access constants.%AddWith.impl_witness.568, element1 [concrete = constants.%Core.IntLiteral.as.AddWith.impl.Op]
+// CHECK:STDOUT:     %impl.elem1: %.d73 = impl_witness_access constants.%AddWith.impl_witness.b4f, element1 [concrete = constants.%Core.IntLiteral.as.AddWith.impl.Op]
 // CHECK:STDOUT:     %bound_method: <bound method> = bound_method %int_1, %impl.elem1 [concrete = constants.%Core.IntLiteral.as.AddWith.impl.Op.bound]
 // CHECK:STDOUT:     %Core.IntLiteral.as.AddWith.impl.Op.call: init Core.IntLiteral = call %bound_method(%int_1, %int_2) [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:     %.loc6_18.1: Core.IntLiteral = value_of_initializer %Core.IntLiteral.as.AddWith.impl.Op.call [concrete = constants.%int_3.1ba]
@@ -117,41 +117,41 @@ var b: array(1, 39999999999999999993);
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %u32: type = class_type @UInt, @UInt(%int_32) [concrete]
-// CHECK:STDOUT:   %As.type.ce0: type = facet_type <@As, @As(%u32)> [concrete]
+// CHECK:STDOUT:   %As.type.346: type = facet_type <@As, @As(%u32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.b94: type = fn_type @As.Convert, @As(%u32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.type.002: type = fn_type @UInt.as.ImplicitAs.impl.Convert, @UInt.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.819: %UInt.as.ImplicitAs.impl.Convert.type.002 = struct_value () [symbolic]
+// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.type.ebd: type = fn_type @UInt.as.ImplicitAs.impl.Convert, @UInt.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.55e: %UInt.as.ImplicitAs.impl.Convert.type.ebd = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.792: type = fn_type @Core.IntLiteral.as.As.impl.Convert.1, @Core.IntLiteral.as.As.impl.2f2(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.c02: %Core.IntLiteral.as.As.impl.Convert.type.792 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.d2d: <witness> = impl_witness imports.%As.impl_witness_table.afe, @Core.IntLiteral.as.As.impl.2f2(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.70b: type = fn_type @Core.IntLiteral.as.As.impl.Convert.1, @Core.IntLiteral.as.As.impl.2f2(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.92a: %Core.IntLiteral.as.As.impl.Convert.type.70b = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.ce0 = facet_value Core.IntLiteral, (%As.impl_witness.d2d) [concrete]
-// CHECK:STDOUT:   %.68c: type = fn_type_with_self_type %As.Convert.type.b94, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.As.impl.Convert.92a [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.92a, @Core.IntLiteral.as.As.impl.Convert.1(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.94d: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.6e4: type = fn_type @Core.IntLiteral.as.As.impl.Convert.1, @Core.IntLiteral.as.As.impl.387(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.483: %Core.IntLiteral.as.As.impl.Convert.type.6e4 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.666: <witness> = impl_witness imports.%As.impl_witness_table.526, @Core.IntLiteral.as.As.impl.387(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.837: type = fn_type @Core.IntLiteral.as.As.impl.Convert.1, @Core.IntLiteral.as.As.impl.387(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.358: %Core.IntLiteral.as.As.impl.Convert.type.837 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.346 = facet_value Core.IntLiteral, (%As.impl_witness.666) [concrete]
+// CHECK:STDOUT:   %.cbe: type = fn_type_with_self_type %As.Convert.type.b94, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.As.impl.Convert.358 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.358, @Core.IntLiteral.as.As.impl.Convert.1(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b91: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.d14: %u32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.6ad, @UInt.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.type.e06: type = fn_type @UInt.as.ImplicitAs.impl.Convert, @UInt.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.47f: %UInt.as.ImplicitAs.impl.Convert.type.e06 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.84e: %ImplicitAs.type.2fd = facet_value %u32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.268: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.84e [concrete]
-// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.d14, %UInt.as.ImplicitAs.impl.Convert.47f [concrete]
-// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %UInt.as.ImplicitAs.impl.Convert.47f, @UInt.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.3a6: <bound method> = bound_method %int_3.d14, %UInt.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.b81: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.526, @UInt.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.type.224: type = fn_type @UInt.as.ImplicitAs.impl.Convert, @UInt.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.1c8: %UInt.as.ImplicitAs.impl.Convert.type.224 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.342: %ImplicitAs.type.139 = facet_value %u32, (%ImplicitAs.impl_witness.b81) [concrete]
+// CHECK:STDOUT:   %.129: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.342 [concrete]
+// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.d14, %UInt.as.ImplicitAs.impl.Convert.1c8 [concrete]
+// CHECK:STDOUT:   %UInt.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %UInt.as.ImplicitAs.impl.Convert.1c8, @UInt.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.d2a: <bound method> = bound_method %int_3.d14, %UInt.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %array_type: type = array_type %int_3.1ba, %i32 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.823: @UInt.as.ImplicitAs.impl.%UInt.as.ImplicitAs.impl.Convert.type (%UInt.as.ImplicitAs.impl.Convert.type.002) = import_ref Core//prelude/types/uint, loc25_44, loaded [symbolic = @UInt.as.ImplicitAs.impl.%UInt.as.ImplicitAs.impl.Convert (constants.%UInt.as.ImplicitAs.impl.Convert.819)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.6ad = impl_witness_table (%Core.import_ref.823), @UInt.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.aef: @Core.IntLiteral.as.As.impl.2f2.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.792) = import_ref Core//prelude/types/uint, loc30_40, loaded [symbolic = @Core.IntLiteral.as.As.impl.2f2.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.c02)]
-// CHECK:STDOUT:   %As.impl_witness_table.afe = impl_witness_table (%Core.import_ref.aef), @Core.IntLiteral.as.As.impl.2f2 [concrete]
+// CHECK:STDOUT:   %Core.import_ref.71e: @UInt.as.ImplicitAs.impl.%UInt.as.ImplicitAs.impl.Convert.type (%UInt.as.ImplicitAs.impl.Convert.type.ebd) = import_ref Core//prelude/types/uint, loc25_44, loaded [symbolic = @UInt.as.ImplicitAs.impl.%UInt.as.ImplicitAs.impl.Convert (constants.%UInt.as.ImplicitAs.impl.Convert.55e)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.526 = impl_witness_table (%Core.import_ref.71e), @UInt.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.564: @Core.IntLiteral.as.As.impl.387.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.6e4) = import_ref Core//prelude/types/uint, loc30_40, loaded [symbolic = @Core.IntLiteral.as.As.impl.387.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.483)]
+// CHECK:STDOUT:   %As.impl_witness_table.526 = impl_witness_table (%Core.import_ref.564), @Core.IntLiteral.as.As.impl.387 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -161,17 +161,17 @@ var b: array(1, 39999999999999999993);
 // CHECK:STDOUT:     %int_3.loc6: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:     %int_32.loc6_21: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %u32: type = class_type @UInt, @UInt(constants.%int_32) [concrete = constants.%u32]
-// CHECK:STDOUT:     %impl.elem0.loc6_18.1: %.68c = impl_witness_access constants.%As.impl_witness.d2d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.92a]
+// CHECK:STDOUT:     %impl.elem0.loc6_18.1: %.cbe = impl_witness_access constants.%As.impl_witness.666, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.358]
 // CHECK:STDOUT:     %bound_method.loc6_18.1: <bound method> = bound_method %int_3.loc6, %impl.elem0.loc6_18.1 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn.loc6_18.1: <specific function> = specific_function %impl.elem0.loc6_18.1, @Core.IntLiteral.as.As.impl.Convert.1(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_18.2: <bound method> = bound_method %int_3.loc6, %specific_fn.loc6_18.1 [concrete = constants.%bound_method.94d]
+// CHECK:STDOUT:     %bound_method.loc6_18.2: <bound method> = bound_method %int_3.loc6, %specific_fn.loc6_18.1 [concrete = constants.%bound_method.b91]
 // CHECK:STDOUT:     %Core.IntLiteral.as.As.impl.Convert.call: init %u32 = call %bound_method.loc6_18.2(%int_3.loc6) [concrete = constants.%int_3.d14]
 // CHECK:STDOUT:     %.loc6_18.1: %u32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_3.d14]
 // CHECK:STDOUT:     %.loc6_18.2: %u32 = converted %int_3.loc6, %.loc6_18.1 [concrete = constants.%int_3.d14]
-// CHECK:STDOUT:     %impl.elem0.loc6_18.2: %.268 = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%UInt.as.ImplicitAs.impl.Convert.47f]
+// CHECK:STDOUT:     %impl.elem0.loc6_18.2: %.129 = impl_witness_access constants.%ImplicitAs.impl_witness.b81, element0 [concrete = constants.%UInt.as.ImplicitAs.impl.Convert.1c8]
 // CHECK:STDOUT:     %bound_method.loc6_18.3: <bound method> = bound_method %.loc6_18.2, %impl.elem0.loc6_18.2 [concrete = constants.%UInt.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn.loc6_18.2: <specific function> = specific_function %impl.elem0.loc6_18.2, @UInt.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%UInt.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_18.4: <bound method> = bound_method %.loc6_18.2, %specific_fn.loc6_18.2 [concrete = constants.%bound_method.3a6]
+// CHECK:STDOUT:     %bound_method.loc6_18.4: <bound method> = bound_method %.loc6_18.2, %specific_fn.loc6_18.2 [concrete = constants.%bound_method.d2a]
 // CHECK:STDOUT:     %UInt.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.loc6_18.4(%.loc6_18.2) [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:     %.loc6_18.3: Core.IntLiteral = value_of_initializer %UInt.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:     %.loc6_18.4: Core.IntLiteral = converted %.loc6_18.2, %.loc6_18.3 [concrete = constants.%int_3.1ba]
diff --git a/toolchain/check/testdata/array/import.carbon b/toolchain/check/testdata/array/import.carbon
index ed63a51ea2b9..7ffefab50aa2 100644
--- a/toolchain/check/testdata/array/import.carbon
+++ b/toolchain/check/testdata/array/import.carbon
@@ -68,8 +68,8 @@ fn F() -> array(i32, 1) {
 // CHECK:STDOUT:   %int_42: Core.IntLiteral = int_value 42 [concrete]
 // CHECK:STDOUT:   %array_type: type = array_type %int_42, %i32 [concrete]
 // CHECK:STDOUT:   %ptr.830: type = ptr_type %array_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.b8c: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.552: %T.as.Destroy.impl.Op.type.b8c = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.886: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.923: %T.as.Destroy.impl.Op.type.886 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -87,7 +87,7 @@ fn F() -> array(i32, 1) {
 // CHECK:STDOUT:   %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   %.loc6_15.1: ref %i32 = array_index %.loc6_12.2, %n.ref
 // CHECK:STDOUT:   %.loc6_15.2: %i32 = bind_value %.loc6_15.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc6_12.2, constants.%T.as.Destroy.impl.Op.552
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc6_12.2, constants.%T.as.Destroy.impl.Op.923
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc6_12.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.830 = addr_of %.loc6_12.2
diff --git a/toolchain/check/testdata/array/index_not_literal.carbon b/toolchain/check/testdata/array/index_not_literal.carbon
index e6c3cc501a76..a83b71a36b76 100644
--- a/toolchain/check/testdata/array/index_not_literal.carbon
+++ b/toolchain/check/testdata/array/index_not_literal.carbon
@@ -61,34 +61,34 @@ fn F(a: array({}, 3)) -> {} {
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_1.5d2, %int_2.ef8, %int_3.822) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1e4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f0b: %T.as.Destroy.impl.Op.type.1e4 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.330: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.a44: %T.as.Destroy.impl.Op.type.330 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F(%arr.param: %array_type, %i.param: %i32) -> %i32 {
@@ -111,29 +111,29 @@ fn F(a: array({}, 3)) -> {} {
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc10_20.1: %tuple.type = tuple_literal (%int_1.loc10_13, %int_2.loc10_16, %int_3)
 // CHECK:STDOUT:   %int_1.loc10_23: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc10_20.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_20.1: <bound method> = bound_method %int_1.loc10_13, %impl.elem0.loc10_20.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc10_20.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_20.1: <bound method> = bound_method %int_1.loc10_13, %impl.elem0.loc10_20.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc10_20.1: <specific function> = specific_function %impl.elem0.loc10_20.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_20.2: <bound method> = bound_method %int_1.loc10_13, %specific_fn.loc10_20.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc10_20.2: <bound method> = bound_method %int_1.loc10_13, %specific_fn.loc10_20.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_20.1: init %i32 = call %bound_method.loc10_20.2(%int_1.loc10_13) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc10_20.2: init %i32 = converted %int_1.loc10_13, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_20.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc10_20.3: ref %array_type = temporary_storage
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:   %.loc10_20.4: ref %i32 = array_index %.loc10_20.3, %int_0
 // CHECK:STDOUT:   %.loc10_20.5: init %i32 = initialize_from %.loc10_20.2 to %.loc10_20.4 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc10_20.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_20.3: <bound method> = bound_method %int_2.loc10_16, %impl.elem0.loc10_20.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc10_20.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_20.3: <bound method> = bound_method %int_2.loc10_16, %impl.elem0.loc10_20.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc10_20.2: <specific function> = specific_function %impl.elem0.loc10_20.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_20.4: <bound method> = bound_method %int_2.loc10_16, %specific_fn.loc10_20.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc10_20.4: <bound method> = bound_method %int_2.loc10_16, %specific_fn.loc10_20.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_20.2: init %i32 = call %bound_method.loc10_20.4(%int_2.loc10_16) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc10_20.6: init %i32 = converted %int_2.loc10_16, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_20.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %int_1.loc10_20: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc10_20.7: ref %i32 = array_index %.loc10_20.3, %int_1.loc10_20
 // CHECK:STDOUT:   %.loc10_20.8: init %i32 = initialize_from %.loc10_20.6 to %.loc10_20.7 [concrete = constants.%int_2.ef8]
-// CHECK:STDOUT:   %impl.elem0.loc10_20.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_20.5: <bound method> = bound_method %int_3, %impl.elem0.loc10_20.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc10_20.3: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_20.5: <bound method> = bound_method %int_3, %impl.elem0.loc10_20.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc10_20.3: <specific function> = specific_function %impl.elem0.loc10_20.3, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_20.6: <bound method> = bound_method %int_3, %specific_fn.loc10_20.3 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc10_20.6: <bound method> = bound_method %int_3, %specific_fn.loc10_20.3 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_20.3: init %i32 = call %bound_method.loc10_20.6(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc10_20.9: init %i32 = converted %int_3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_20.3 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %int_2.loc10_20: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
@@ -143,17 +143,17 @@ fn F(a: array({}, 3)) -> {} {
 // CHECK:STDOUT:   %.loc10_20.13: init %array_type = converted %.loc10_20.1, %.loc10_20.12 [concrete = constants.%array]
 // CHECK:STDOUT:   %.loc10_20.14: ref %array_type = temporary %.loc10_20.3, %.loc10_20.13
 // CHECK:STDOUT:   %.loc10_20.15: %array_type = bind_value %.loc10_20.14
-// CHECK:STDOUT:   %impl.elem0.loc10_23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_23.1: <bound method> = bound_method %int_1.loc10_23, %impl.elem0.loc10_23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc10_23: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_23.1: <bound method> = bound_method %int_1.loc10_23, %impl.elem0.loc10_23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc10_23: <specific function> = specific_function %impl.elem0.loc10_23, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_23.2: <bound method> = bound_method %int_1.loc10_23, %specific_fn.loc10_23 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc10_23.2: <bound method> = bound_method %int_1.loc10_23, %specific_fn.loc10_23 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_23: init %i32 = call %bound_method.loc10_23.2(%int_1.loc10_23) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc10_23.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_23 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc10_23.2: %i32 = converted %int_1.loc10_23, %.loc10_23.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %F.call: init %i32 = call %F.ref(%.loc10_20.15, %.loc10_23.2)
 // CHECK:STDOUT:   %.loc10_25.1: %i32 = value_of_initializer %F.call
 // CHECK:STDOUT:   %.loc10_25.2: %i32 = converted %F.call, %.loc10_25.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_20.14, constants.%T.as.Destroy.impl.Op.f0b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_20.14, constants.%T.as.Destroy.impl.Op.a44
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_20.7: <bound method> = bound_method %.loc10_20.14, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.f01 = addr_of %.loc10_20.14
@@ -172,26 +172,26 @@ fn F(a: array({}, 3)) -> {} {
 // CHECK:STDOUT:   %struct: %struct_type.index = struct_value (%int_2.ecc) [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F(%a.param: %array_type) -> %empty_struct_type {
@@ -204,7 +204,7 @@ fn F(a: array({}, 3)) -> {} {
 // CHECK:STDOUT:   %.loc6_24.1: Core.IntLiteral = struct_access %.loc6_23.2, element0 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc6_24.1: <bound method> = bound_method %.loc6_24.1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_24.2: <bound method> = bound_method %.loc6_24.1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/array/init_dependent_bound.carbon b/toolchain/check/testdata/array/init_dependent_bound.carbon
index 4a097a3f07e8..9dec85bb1948 100644
--- a/toolchain/check/testdata/array/init_dependent_bound.carbon
+++ b/toolchain/check/testdata/array/init_dependent_bound.carbon
@@ -69,32 +69,32 @@ fn H() { G(3); }
 // CHECK:STDOUT:   %array.2ed: %array_type.281 = tuple_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.bc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.46f: %T.as.Destroy.impl.Op.type.bc9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.305: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e3a: %T.as.Destroy.impl.Op.type.305 = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.662: <witness> = require_complete_type %ptr.e06 [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %array_type.281, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.cdc: %Destroy.type = facet_value %array_type.281, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.77e: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.cdc [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.77e = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet.cdc) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.19c: %Destroy.type = facet_value %array_type.281, (%Destroy.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.ba4: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.19c [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.ba4 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet.19c) [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %array_type.6f1: type = array_type %int_0, %C [concrete]
 // CHECK:STDOUT:   %ptr.cf4: type = ptr_type %array_type.6f1 [concrete]
 // CHECK:STDOUT:   %complete_type.ed6: <witness> = complete_type_witness %array_type.6f1 [concrete]
 // CHECK:STDOUT:   %pattern_type.9c8: type = pattern_type %array_type.6f1 [concrete]
 // CHECK:STDOUT:   %array.2e5: %array_type.6f1 = tuple_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8b8: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%array_type.6f1) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a3e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.6f1) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.dc5: %T.as.Destroy.impl.Op.type.a3e = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6a3: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%array_type.6f1) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.9bd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.6f1) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.0bb: %T.as.Destroy.impl.Op.type.9bd = struct_value () [concrete]
 // CHECK:STDOUT:   %complete_type.3e1: <witness> = complete_type_witness %ptr.cf4 [concrete]
-// CHECK:STDOUT:   %Destroy.facet.da7: %Destroy.type = facet_value %array_type.6f1, (%Destroy.impl_witness.8b8) [concrete]
-// CHECK:STDOUT:   %.a21: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.da7 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.dc5, @T.as.Destroy.impl.Op(%array_type.6f1) [concrete]
+// CHECK:STDOUT:   %Destroy.facet.0c8: %Destroy.type = facet_value %array_type.6f1, (%Destroy.impl_witness.6a3) [concrete]
+// CHECK:STDOUT:   %.f70: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.0c8 [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.0bb, @T.as.Destroy.impl.Op(%array_type.6f1) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.0b9: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.46f)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @T.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.efe: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.305) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.e3a)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.efe), @T.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @G(%T.loc4_6.2: type) {
@@ -106,9 +106,9 @@ fn H() { G(3); }
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %array_type.loc7_22.2 [symbolic = %pattern_type (constants.%pattern_type.d48)]
 // CHECK:STDOUT:   %array: @G.%array_type.loc7_22.2 (%array_type.281) = tuple_value () [symbolic = %array (constants.%array.2ed)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %array_type.loc7_22.2, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %array_type.loc7_22.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.cdc)]
-// CHECK:STDOUT:   %.loc7_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc7_3.3 (constants.%.77e)]
-// CHECK:STDOUT:   %impl.elem0.loc7_3.2: @G.%.loc7_3.3 (%.77e) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %array_type.loc7_22.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.19c)]
+// CHECK:STDOUT:   %.loc7_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc7_3.3 (constants.%.ba4)]
+// CHECK:STDOUT:   %impl.elem0.loc7_3.2: @G.%.loc7_3.3 (%.ba4) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc7_3.2: <specific function> = specific_impl_function %impl.elem0.loc7_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %array_type.loc7_22.2 [symbolic = %ptr (constants.%ptr.e06)]
 // CHECK:STDOUT:   %require_complete.loc7_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc7_3 (constants.%require_complete.662)]
@@ -130,9 +130,9 @@ fn H() { G(3); }
 // CHECK:STDOUT:       %array_type.loc7_22.1: type = array_type %int_0, %T.ref [symbolic = %array_type.loc7_22.2 (constants.%array_type.281)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %arr: ref @G.%array_type.loc7_22.2 (%array_type.281) = bind_name arr, %arr.var
-// CHECK:STDOUT:     %impl.elem0.loc7_3.1: @G.%.loc7_3.3 (%.77e) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc7_3.1: @G.%.loc7_3.3 (%.ba4) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc7_3.1: <bound method> = bound_method %arr.var, %impl.elem0.loc7_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc7_3.1: <specific function> = specific_impl_function %impl.elem0.loc7_3.1, @Destroy.Op(constants.%Destroy.facet.cdc) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %specific_impl_fn.loc7_3.1: <specific function> = specific_impl_function %impl.elem0.loc7_3.1, @Destroy.Op(constants.%Destroy.facet.19c) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc7_3.2: <bound method> = bound_method %arr.var, %specific_impl_fn.loc7_3.1
 // CHECK:STDOUT:     %addr: @G.%ptr (%ptr.e06) = addr_of %arr.var
 // CHECK:STDOUT:     %.loc7_3.2: init %empty_tuple.type = call %bound_method.loc7_3.2(%addr)
@@ -152,10 +152,10 @@ fn H() { G(3); }
 // CHECK:STDOUT:   %require_complete.loc7_22 => constants.%complete_type.ed6
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9c8
 // CHECK:STDOUT:   %array => constants.%array.2e5
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.8b8
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.da7
-// CHECK:STDOUT:   %.loc7_3.3 => constants.%.a21
-// CHECK:STDOUT:   %impl.elem0.loc7_3.2 => constants.%T.as.Destroy.impl.Op.dc5
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.6a3
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.0c8
+// CHECK:STDOUT:   %.loc7_3.3 => constants.%.f70
+// CHECK:STDOUT:   %impl.elem0.loc7_3.2 => constants.%T.as.Destroy.impl.Op.0bb
 // CHECK:STDOUT:   %specific_impl_fn.loc7_3.2 => constants.%T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %ptr => constants.%ptr.cf4
 // CHECK:STDOUT:   %require_complete.loc7_3 => constants.%complete_type.3e1
@@ -171,36 +171,36 @@ fn H() { G(3); }
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.f49: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.f49 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.c6f: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.4d7: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.4d7 [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.7ed: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %inst.splice_block: <instruction> = inst_value [concrete] {
-// CHECK:STDOUT:     %.df7: Core.IntLiteral = splice_block %.dd0 [concrete = %int_3.1ba] {
-// CHECK:STDOUT:       %impl.elem0.c2d: %.0ea = impl_witness_access %ImplicitAs.impl_witness.a11, element0 [concrete = %Int.as.ImplicitAs.impl.Convert.960]
-// CHECK:STDOUT:       %bound_method.8d1: <bound method> = bound_method %int_3.822, %impl.elem0.c2d [concrete = %Int.as.ImplicitAs.impl.Convert.bound]
-// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0.c2d, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete = %Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:       %bound_method.9ef: <bound method> = bound_method %int_3.822, %specific_fn [concrete = %bound_method.c6f]
-// CHECK:STDOUT:       %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.9ef(%int_3.822) [concrete = %int_3.1ba]
-// CHECK:STDOUT:       %.5d1: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call [concrete = %int_3.1ba]
-// CHECK:STDOUT:       %.dd0: Core.IntLiteral = converted %int_3.822, %.5d1 [concrete = %int_3.1ba]
+// CHECK:STDOUT:     %.7b7: Core.IntLiteral = splice_block %.b7f [concrete = %int_3.1ba] {
+// CHECK:STDOUT:       %impl.elem0.b55: %.2d1 = impl_witness_access %ImplicitAs.impl_witness.6fb, element0 [concrete = %Int.as.ImplicitAs.impl.Convert.87c]
+// CHECK:STDOUT:       %bound_method.28c: <bound method> = bound_method %int_3.822, %impl.elem0.b55 [concrete = %Int.as.ImplicitAs.impl.Convert.bound]
+// CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0.b55, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete = %Int.as.ImplicitAs.impl.Convert.specific_fn]
+// CHECK:STDOUT:       %bound_method.3c1: <bound method> = bound_method %int_3.822, %specific_fn [concrete = %bound_method.7ed]
+// CHECK:STDOUT:       %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.3c1(%int_3.822) [concrete = %int_3.1ba]
+// CHECK:STDOUT:       %.671: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call [concrete = %int_3.1ba]
+// CHECK:STDOUT:       %.b7f: Core.IntLiteral = converted %int_3.822, %.671 [concrete = %int_3.1ba]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @G(%N.loc5_15.2: %i32) {
diff --git a/toolchain/check/testdata/as/adapter_conversion.carbon b/toolchain/check/testdata/as/adapter_conversion.carbon
index 6c5b624aabfd..774411527fe9 100644
--- a/toolchain/check/testdata/as/adapter_conversion.carbon
+++ b/toolchain/check/testdata/as/adapter_conversion.carbon
@@ -247,27 +247,27 @@ var b: B = {.x = ()} as B;
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_1.e78: %A = int_value 1 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -291,7 +291,7 @@ var b: B = {.x = ()} as B;
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_32.loc9: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc9: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc9_15.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_15.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -351,29 +351,29 @@ var b: B = {.x = ()} as B;
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct_type.x.y.4cf: type = struct_type {.x: Core.IntLiteral, .y: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %A.val: %A = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -391,19 +391,19 @@ var b: B = {.x = ()} as B;
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc14_34.1: %struct_type.x.y.4cf = struct_literal (%int_1, %int_2)
 // CHECK:STDOUT:   %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A]
-// CHECK:STDOUT:   %impl.elem0.loc14_34.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_34.1: <bound method> = bound_method %int_1, %impl.elem0.loc14_34.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc14_34.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_34.1: <bound method> = bound_method %int_1, %impl.elem0.loc14_34.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc14_34.1: <specific function> = specific_function %impl.elem0.loc14_34.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_34.2: <bound method> = bound_method %int_1, %specific_fn.loc14_34.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc14_34.2: <bound method> = bound_method %int_1, %specific_fn.loc14_34.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_34.1: init %i32 = call %bound_method.loc14_34.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc14_34.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_34.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc14_34.3: ref %A = temporary_storage
 // CHECK:STDOUT:   %.loc14_34.4: ref %i32 = class_element_access %.loc14_34.3, element0
 // CHECK:STDOUT:   %.loc14_34.5: init %i32 = initialize_from %.loc14_34.2 to %.loc14_34.4 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc14_34.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_34.3: <bound method> = bound_method %int_2, %impl.elem0.loc14_34.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc14_34.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_34.3: <bound method> = bound_method %int_2, %impl.elem0.loc14_34.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc14_34.2: <specific function> = specific_function %impl.elem0.loc14_34.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_34.4: <bound method> = bound_method %int_2, %specific_fn.loc14_34.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc14_34.4: <bound method> = bound_method %int_2, %specific_fn.loc14_34.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_34.2: init %i32 = call %bound_method.loc14_34.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc14_34.6: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_34.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc14_34.7: ref %i32 = class_element_access %.loc14_34.3, element1
diff --git a/toolchain/check/testdata/as/basics.carbon b/toolchain/check/testdata/as/basics.carbon
index e240a14590af..ae42d2899f6a 100644
--- a/toolchain/check/testdata/as/basics.carbon
+++ b/toolchain/check/testdata/as/basics.carbon
@@ -212,8 +212,8 @@ let n: {.x: ()} = {.x = ()} as {.x = ()};
 // CHECK:STDOUT:   %tuple.type.24b: type = tuple_type (type, type) [concrete]
 // CHECK:STDOUT:   %tuple.type.b67: type = tuple_type (%X, %X) [concrete]
 // CHECK:STDOUT:   %pattern_type.bb7: type = pattern_type %tuple.type.b67 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.df3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.b67) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.279: %T.as.Destroy.impl.Op.type.df3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.5ea: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.b67) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.dfd: %T.as.Destroy.impl.Op.type.5ea = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.120: type = ptr_type %tuple.type.b67 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -286,7 +286,7 @@ let n: {.x: ()} = {.x = ()} as {.x = ()};
 // CHECK:STDOUT:     %.loc20_15.3: type = converted %.loc20_15.2, constants.%tuple.type.b67 [concrete = constants.%tuple.type.b67]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %tuple.type.b67 = bind_name b, %b.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.279
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.dfd
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.120 = addr_of %b.var
@@ -370,13 +370,13 @@ let n: {.x: ()} = {.x = ()} as {.x = ()};
 // CHECK:STDOUT:   %pattern_type.c27: type = pattern_type %Y [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %X.val: %X = struct_value (%empty_tuple) [concrete]
-// CHECK:STDOUT:   %As.type.bdd: type = facet_type <@As, @As(%Y)> [concrete]
+// CHECK:STDOUT:   %As.type.c80: type = facet_type <@As, @As(%Y)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.d2d: type = fn_type @As.Convert, @As(%Y) [concrete]
-// CHECK:STDOUT:   %As.impl_witness.06e: <witness> = impl_witness file.%As.impl_witness_table.loc14 [concrete]
+// CHECK:STDOUT:   %As.impl_witness.fea: <witness> = impl_witness file.%As.impl_witness_table.loc14 [concrete]
 // CHECK:STDOUT:   %X.as.As.impl.Convert.type: type = fn_type @X.as.As.impl.Convert [concrete]
 // CHECK:STDOUT:   %X.as.As.impl.Convert: %X.as.As.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet.8d1: %As.type.bdd = facet_value %X, (%As.impl_witness.06e) [concrete]
-// CHECK:STDOUT:   %.1fc: type = fn_type_with_self_type %As.Convert.type.d2d, %As.facet.8d1 [concrete]
+// CHECK:STDOUT:   %As.facet.dd3: %As.type.c80 = facet_value %X, (%As.impl_witness.fea) [concrete]
+// CHECK:STDOUT:   %.eb3: type = fn_type_with_self_type %As.Convert.type.d2d, %As.facet.dd3 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -405,7 +405,7 @@ let n: {.x: ()} = {.x = ()} as {.x = ()};
 // CHECK:STDOUT:   %.loc19_21.6: ref %X = temporary %.loc19_21.2, %.loc19_21.5
 // CHECK:STDOUT:   %.loc19_23.1: ref %X = converted %.loc19_21.1, %.loc19_21.6
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y]
-// CHECK:STDOUT:   %impl.elem0: %.1fc = impl_witness_access constants.%As.impl_witness.06e, element0 [concrete = constants.%X.as.As.impl.Convert]
+// CHECK:STDOUT:   %impl.elem0: %.eb3 = impl_witness_access constants.%As.impl_witness.fea, element0 [concrete = constants.%X.as.As.impl.Convert]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc19_23.1, %impl.elem0
 // CHECK:STDOUT:   %.loc19_29.1: ref %Y = temporary_storage
 // CHECK:STDOUT:   %.loc19_23.2: %X = bind_value %.loc19_23.1
diff --git a/toolchain/check/testdata/as/const.carbon b/toolchain/check/testdata/as/const.carbon
index 8de307210226..da2e70fad8cb 100644
--- a/toolchain/check/testdata/as/const.carbon
+++ b/toolchain/check/testdata/as/const.carbon
@@ -106,8 +106,8 @@ fn Use() {
 // CHECK:STDOUT:   %pattern_type.855: type = pattern_type %ptr.cbd [concrete]
 // CHECK:STDOUT:   %reference.var: ref %const = var file.%reference.var_patt [concrete]
 // CHECK:STDOUT:   %addr.0c5: %ptr.cbd = addr_of %reference.var [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f3e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%const) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4e8: %T.as.Destroy.impl.Op.type.f3e = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.e3b: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%const) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.96e: %T.as.Destroy.impl.Op.type.e3b = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -176,7 +176,7 @@ fn Use() {
 // CHECK:STDOUT:     %ptr.loc17_17: type = ptr_type %const.loc17_10 [concrete = constants.%ptr.cbd]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: %ptr.cbd = bind_name b, %.loc17_25.2
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%T.as.Destroy.impl.Op.4e8
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%T.as.Destroy.impl.Op.96e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %i.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc14: %ptr.cbd = addr_of %i.var
diff --git a/toolchain/check/testdata/as/maybe_unformed.carbon b/toolchain/check/testdata/as/maybe_unformed.carbon
index 6db01a9cb8c2..5cff5346ed69 100644
--- a/toolchain/check/testdata/as/maybe_unformed.carbon
+++ b/toolchain/check/testdata/as/maybe_unformed.carbon
@@ -221,8 +221,8 @@ fn Use() {
 // CHECK:STDOUT:   %pattern_type.eb8: type = pattern_type %MaybeUnformed.275 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %MaybeUnformed.as.Destroy.impl.Op.type.3bf: type = fn_type @MaybeUnformed.as.Destroy.impl.Op, @MaybeUnformed.as.Destroy.impl(%X) [concrete]
-// CHECK:STDOUT:   %MaybeUnformed.as.Destroy.impl.Op.b85: %MaybeUnformed.as.Destroy.impl.Op.type.3bf = struct_value () [concrete]
+// CHECK:STDOUT:   %MaybeUnformed.as.Destroy.impl.Op.type.2b9: type = fn_type @MaybeUnformed.as.Destroy.impl.Op, @MaybeUnformed.as.Destroy.impl(%X) [concrete]
+// CHECK:STDOUT:   %MaybeUnformed.as.Destroy.impl.Op.9a0: %MaybeUnformed.as.Destroy.impl.Op.type.2b9 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.58e: type = ptr_type %MaybeUnformed.275 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -278,7 +278,7 @@ fn Use() {
 // CHECK:STDOUT:     %MaybeUnformed.loc27_30: type = class_type @MaybeUnformed, @MaybeUnformed(constants.%X) [concrete = constants.%MaybeUnformed.275]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: %MaybeUnformed.275 = bind_name v, <error> [concrete = <error>]
-// CHECK:STDOUT:   %MaybeUnformed.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%MaybeUnformed.as.Destroy.impl.Op.b85
+// CHECK:STDOUT:   %MaybeUnformed.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%MaybeUnformed.as.Destroy.impl.Op.9a0
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %i.var, %MaybeUnformed.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.58e = addr_of %i.var
diff --git a/toolchain/check/testdata/as/partial.carbon b/toolchain/check/testdata/as/partial.carbon
index 38baea1e333f..6fd801daaf91 100644
--- a/toolchain/check/testdata/as/partial.carbon
+++ b/toolchain/check/testdata/as/partial.carbon
@@ -142,8 +142,8 @@ fn Use() {
 // CHECK:STDOUT:   %pattern_type.46e: type = pattern_type %ptr.7b2 [concrete]
 // CHECK:STDOUT:   %reference.var: ref %.e71 = var file.%reference.var_patt [concrete]
 // CHECK:STDOUT:   %addr.e01: %ptr.7b2 = addr_of %reference.var [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.057: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%.e71) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d31: %T.as.Destroy.impl.Op.type.057 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ddb: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%.e71) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.902: %T.as.Destroy.impl.Op.type.ddb = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -212,7 +212,7 @@ fn Use() {
 // CHECK:STDOUT:     %ptr.loc17_19: type = ptr_type %.loc17_10 [concrete = constants.%ptr.7b2]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: %ptr.7b2 = bind_name b, %.loc17_27.2
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%T.as.Destroy.impl.Op.d31
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%T.as.Destroy.impl.Op.902
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %i.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc14: %ptr.7b2 = addr_of %i.var
diff --git a/toolchain/check/testdata/basics/dump_sem_ir_ranges.carbon b/toolchain/check/testdata/basics/dump_sem_ir_ranges.carbon
index 495e6651bb4c..115292b3d397 100644
--- a/toolchain/check/testdata/basics/dump_sem_ir_ranges.carbon
+++ b/toolchain/check/testdata/basics/dump_sem_ir_ranges.carbon
@@ -104,8 +104,8 @@ library "[[@TEST_NAME]]";
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
 // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
@@ -158,7 +158,7 @@ library "[[@TEST_NAME]]";
 // CHECK:STDOUT:   %c.ref.loc20: ref %empty_tuple.type = name_ref c, %c
 // CHECK:STDOUT:   %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc20: %empty_tuple.type = converted %c.ref.loc20, %tuple [concrete = constants.%empty_tuple]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %c.var
@@ -178,7 +178,7 @@ library "[[@TEST_NAME]]";
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %C.I.type: type = fn_type @C.I [concrete]
 // CHECK:STDOUT:   %C.I: %C.I.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -234,7 +234,7 @@ library "[[@TEST_NAME]]";
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -261,8 +261,8 @@ library "[[@TEST_NAME]]";
 // CHECK:STDOUT:   %C.type: type = fn_type @C [concrete]
 // CHECK:STDOUT:   %C: %C.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -287,13 +287,13 @@ library "[[@TEST_NAME]]";
 // CHECK:STDOUT:   %tuple.loc17: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc17_7.3: %empty_tuple.type = converted %C.call, %tuple.loc17 [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   <elided>
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %.loc17_7.2, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %.loc17_7.2, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc17: <bound method> = bound_method %.loc17_7.2, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc17: %ptr.843 = addr_of %.loc17_7.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc17: init %empty_tuple.type = call %bound_method.loc17(%addr.loc17)
 // CHECK:STDOUT:   <elided>
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %.loc13_7.2, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %.loc13_7.2, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc13: <bound method> = bound_method %.loc13_7.2, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc13: %ptr.843 = addr_of %.loc13_7.2
diff --git a/toolchain/check/testdata/basics/duplicate_name_same_line.carbon b/toolchain/check/testdata/basics/duplicate_name_same_line.carbon
index 21555e4ee954..0203e70c8fee 100644
--- a/toolchain/check/testdata/basics/duplicate_name_same_line.carbon
+++ b/toolchain/check/testdata/basics/duplicate_name_same_line.carbon
@@ -25,8 +25,8 @@ fn A() {
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -64,12 +64,12 @@ fn A() {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.done:
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_25: <bound method> = bound_method %n.var.loc18_25, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_25: <bound method> = bound_method %n.var.loc18_25, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc18_25: <bound method> = bound_method %n.var.loc18_25, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc18_25: %ptr.843 = addr_of %n.var.loc18_25
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc18_25: init %empty_tuple.type = call %bound_method.loc18_25(%addr.loc18_25)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_5: <bound method> = bound_method %n.var.loc18_5, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_5: <bound method> = bound_method %n.var.loc18_5, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc18_5: <bound method> = bound_method %n.var.loc18_5, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc18_5: %ptr.843 = addr_of %n.var.loc18_5
diff --git a/toolchain/check/testdata/basics/include_in_dumps.carbon b/toolchain/check/testdata/basics/include_in_dumps.carbon
index 119896e1ad69..b458f72ccec0 100644
--- a/toolchain/check/testdata/basics/include_in_dumps.carbon
+++ b/toolchain/check/testdata/basics/include_in_dumps.carbon
@@ -114,9 +114,9 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.Op.type: type = fn_type @I.Op [concrete]
 // CHECK:STDOUT:   %I.Op: %I.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
@@ -137,16 +137,16 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %I.Op.decl: %I.Op.type = fn_decl @I.Op [concrete = constants.%I.Op] {
-// CHECK:STDOUT:     %self.patt: @I.Op.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.Op.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.Op.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.Op.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @I.Op.%Self.as_type.loc8_15.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc8_15.1: type = splice_block %.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc8_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc8_15.2: type = converted %Self.ref, %Self.as_type.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %self.param: @I.Op.%Self.as_type.loc8_15.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc8_15.1: type = splice_block %.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc8_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc8_15.2: type = converted %Self.ref, %Self.as_type.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.Op.%Self.as_type.loc8_15.1 (%Self.as_type.b70) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @I.Op.%Self.as_type.loc8_15.1 (%Self.as_type.4af) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.Op.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -157,17 +157,17 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.Op(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc8_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc8_15.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc8_15.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.Op.%Self.as_type.loc8_15.1 (%Self.as_type.b70));
+// CHECK:STDOUT:   fn(%self.param: @I.Op.%Self.as_type.loc8_15.1 (%Self.as_type.4af));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.Op(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.Op(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.Op(constants.%I.facet) {
@@ -187,17 +187,17 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.7d9 [concrete]
 // CHECK:STDOUT:   %I.Op.type: type = fn_type @I.Op [concrete]
 // CHECK:STDOUT:   %I.Op: %I.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.36a: type = fn_type_with_self_type %I.Op.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.72d: type = fn_type_with_self_type %I.Op.type, %I.facet [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.Op.type: type = fn_type @C.as.I.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.Op: %C.as.I.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -211,19 +211,19 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//included_with_range, loc16_1, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.2c4 = import_ref Main//included_with_range, inst43 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//included_with_range, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//included_with_range, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.9cd: %I.assoc_type = import_ref Main//included_with_range, loc8_22, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.Op.ca5 = import_ref Main//included_with_range, Op, unloaded
 // CHECK:STDOUT:   %Main.import_ref.7d9: %I.Op.type = import_ref Main//included_with_range, loc8_22, loaded [concrete = constants.%I.Op]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//included_with_range, inst19 [no loc], loaded [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %Main.import_ref.d7a: <witness> = import_ref Main//included_with_range, loc13_15, loaded [concrete = constants.%I.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//included_with_range, inst19 [no loc], loaded [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %Main.import_ref.a89: <witness> = import_ref Main//included_with_range, loc13_15, loaded [concrete = constants.%I.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.29a: type = import_ref Main//included_with_range, loc13_8, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %Main.import_ref.301: type = import_ref Main//included_with_range, loc13_13, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %Main.import_ref.34c = import_ref Main//included_with_range, loc12_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.541 = import_ref Main//included_with_range, loc12_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.0ed: type = import_ref Main//included_with_range, loc12_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//included_with_range, inst62 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.003: %C.as.I.impl.Op.type = import_ref Main//included_with_range, loc14_25, loaded [concrete = constants.%C.as.I.impl.Op]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.003), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//included_with_range, inst62 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.f41: %C.as.I.impl.Op.type = import_ref Main//included_with_range, loc14_25, loaded [concrete = constants.%C.as.I.impl.Op]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.f41), @C.as.I.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -247,19 +247,19 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "exclude/included_with_range.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .Op = imports.%Main.import_ref.9cd
 // CHECK:STDOUT:   witness = (imports.%Main.Op.ca5)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.I.impl: imports.%Main.import_ref.29a as imports.%Main.import_ref.301 [from "exclude/included_with_range.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.d7a
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.a89
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.cb9 [from "exclude/included_with_range.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.063 [from "exclude/included_with_range.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.34c
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C [from "exclude/included_with_range.carbon"] {
@@ -274,26 +274,26 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Op.ref: %I.assoc_type = name_ref Op, imports.%Main.import_ref.9cd [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.36a = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.72d = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.I.impl.Op.call: init %empty_tuple.type = call %bound_method(%c.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.Op(imports.%Main.import_ref.5dd: %I.type) [from "exclude/included_with_range.carbon"] {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT: generic fn @I.Op(imports.%Main.import_ref.72c: %I.type) [from "exclude/included_with_range.carbon"] {
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.I.impl.Op [from "exclude/included_with_range.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.Op(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @I.Op(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- import_excluded.carbon
@@ -311,7 +311,7 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:   %I.Op: %I.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.36a: type = fn_type_with_self_type %I.Op.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.72d: type = fn_type_with_self_type %I.Op.type, %I.facet [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.Op.type: type = fn_type @C.as.I.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.Op: %C.as.I.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -325,8 +325,8 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Main.import_ref.9cd: %I.assoc_type = import_ref Main//excluded_with_range, loc6_22, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.import_ref.7d9: %I.Op.type = import_ref Main//excluded_with_range, loc6_22, loaded [concrete = constants.%I.Op]
-// CHECK:STDOUT:   %Main.import_ref.003: %C.as.I.impl.Op.type = import_ref Main//excluded_with_range, loc12_25, loaded [concrete = constants.%C.as.I.impl.Op]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.003), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.f41: %C.as.I.impl.Op.type = import_ref Main//excluded_with_range, loc12_25, loaded [concrete = constants.%C.as.I.impl.Op]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.f41), @C.as.I.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -353,7 +353,7 @@ fn F(c: C) { c.(I.Op)(); }
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Op.ref: %I.assoc_type = name_ref Op, imports.%Main.import_ref.9cd [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.36a = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.72d = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.I.impl.Op.call: init %empty_tuple.type = call %bound_method(%c.ref)
 // CHECK:STDOUT:   return
diff --git a/toolchain/check/testdata/basics/parens.carbon b/toolchain/check/testdata/basics/parens.carbon
index 6fd3e2c65808..1cd9e79459c3 100644
--- a/toolchain/check/testdata/basics/parens.carbon
+++ b/toolchain/check/testdata/basics/parens.carbon
@@ -25,23 +25,23 @@ var b: i32 = ((2));
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -54,8 +54,8 @@ var b: i32 = ((2));
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -90,18 +90,18 @@ var b: i32 = ((2));
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc14: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_1.1: <bound method> = bound_method %int_1, %impl.elem0.loc14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc14: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_1.1: <bound method> = bound_method %int_1, %impl.elem0.loc14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc14: <specific function> = specific_function %impl.elem0.loc14, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_1.2: <bound method> = bound_method %int_1, %specific_fn.loc14 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc14_1.2: <bound method> = bound_method %int_1, %specific_fn.loc14 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14: init %i32 = call %bound_method.loc14_1.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc14: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign file.%a.var, %.loc14
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_1.1: <bound method> = bound_method %int_2, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_1.1: <bound method> = bound_method %int_2, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc15: <specific function> = specific_function %impl.elem0.loc15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_1.2: <bound method> = bound_method %int_2, %specific_fn.loc15 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc15_1.2: <bound method> = bound_method %int_2, %specific_fn.loc15 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15: init %i32 = call %bound_method.loc15_1.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc15: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   assign file.%b.var, %.loc15
diff --git a/toolchain/check/testdata/builtins/bool/eq.carbon b/toolchain/check/testdata/builtins/bool/eq.carbon
index 9121a4e40635..1f4d9e56d3ef 100644
--- a/toolchain/check/testdata/builtins/bool/eq.carbon
+++ b/toolchain/check/testdata/builtins/bool/eq.carbon
@@ -99,20 +99,20 @@ var d: C(false == false) = True();
 // CHECK:STDOUT:   %pattern_type.cc5: type = pattern_type %C.a14 [concrete]
 // CHECK:STDOUT:   %True.type: type = fn_type @True [concrete]
 // CHECK:STDOUT:   %True: %True.type = struct_value () [concrete]
-// CHECK:STDOUT:   %EqWith.type.a38: type = facet_type <@EqWith, @EqWith(bool)> [concrete]
+// CHECK:STDOUT:   %EqWith.type.863: type = facet_type <@EqWith, @EqWith(bool)> [concrete]
 // CHECK:STDOUT:   %EqWith.Equal.type.a58: type = fn_type @EqWith.Equal, @EqWith(bool) [concrete]
 // CHECK:STDOUT:   %EqWith.impl_witness: <witness> = impl_witness imports.%EqWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %EqWith.facet: %EqWith.type.a38 = facet_value bool, (%EqWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.18c: type = fn_type_with_self_type %EqWith.Equal.type.a58, %EqWith.facet [concrete]
+// CHECK:STDOUT:   %EqWith.facet: %EqWith.type.863 = facet_value bool, (%EqWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b2f: type = fn_type_with_self_type %EqWith.Equal.type.a58, %EqWith.facet [concrete]
 // CHECK:STDOUT:   %bool.as.EqWith.impl.Equal.type: type = fn_type @bool.as.EqWith.impl.Equal [concrete]
 // CHECK:STDOUT:   %bool.as.EqWith.impl.Equal: %bool.as.EqWith.impl.Equal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %bool.as.EqWith.impl.Equal.bound.e10: <bound method> = bound_method %true, %bool.as.EqWith.impl.Equal [concrete]
+// CHECK:STDOUT:   %bool.as.EqWith.impl.Equal.bound.40b: <bound method> = bound_method %true, %bool.as.EqWith.impl.Equal [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.9cf: %bool.as.EqWith.impl.Equal.type = import_ref Core//prelude/operators/comparison, loc36_45, loaded [concrete = constants.%bool.as.EqWith.impl.Equal]
-// CHECK:STDOUT:   %Core.import_ref.f59 = import_ref Core//prelude/operators/comparison, loc37_48, unloaded
-// CHECK:STDOUT:   %EqWith.impl_witness_table = impl_witness_table (%Core.import_ref.9cf, %Core.import_ref.f59), @bool.as.EqWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.336: %bool.as.EqWith.impl.Equal.type = import_ref Core//prelude/operators/comparison, loc36_45, loaded [concrete = constants.%bool.as.EqWith.impl.Equal]
+// CHECK:STDOUT:   %Core.import_ref.79c = import_ref Core//prelude/operators/comparison, loc37_48, unloaded
+// CHECK:STDOUT:   %EqWith.impl_witness_table = impl_witness_table (%Core.import_ref.336, %Core.import_ref.79c), @bool.as.EqWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -125,8 +125,8 @@ var d: C(false == false) = True();
 // CHECK:STDOUT:     %C.ref.loc10: %C.type = name_ref C, %C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %true.loc10_10: bool = bool_literal true [concrete = constants.%true]
 // CHECK:STDOUT:     %true.loc10_18: bool = bool_literal true [concrete = constants.%true]
-// CHECK:STDOUT:     %impl.elem0.loc10: %.18c = impl_witness_access constants.%EqWith.impl_witness, element0 [concrete = constants.%bool.as.EqWith.impl.Equal]
-// CHECK:STDOUT:     %bound_method.loc10: <bound method> = bound_method %true.loc10_10, %impl.elem0.loc10 [concrete = constants.%bool.as.EqWith.impl.Equal.bound.e10]
+// CHECK:STDOUT:     %impl.elem0.loc10: %.b2f = impl_witness_access constants.%EqWith.impl_witness, element0 [concrete = constants.%bool.as.EqWith.impl.Equal]
+// CHECK:STDOUT:     %bound_method.loc10: <bound method> = bound_method %true.loc10_10, %impl.elem0.loc10 [concrete = constants.%bool.as.EqWith.impl.Equal.bound.40b]
 // CHECK:STDOUT:     %bool.as.EqWith.impl.Equal.call.loc10: init bool = call %bound_method.loc10(%true.loc10_10, %true.loc10_18) [concrete = constants.%true]
 // CHECK:STDOUT:     %.loc10_22.2: bool = value_of_initializer %bool.as.EqWith.impl.Equal.call.loc10 [concrete = constants.%true]
 // CHECK:STDOUT:     %.loc10_22.3: bool = converted %bool.as.EqWith.impl.Equal.call.loc10, %.loc10_22.2 [concrete = constants.%true]
diff --git a/toolchain/check/testdata/builtins/bool/neq.carbon b/toolchain/check/testdata/builtins/bool/neq.carbon
index 4efd9b6e33d1..e82df45521be 100644
--- a/toolchain/check/testdata/builtins/bool/neq.carbon
+++ b/toolchain/check/testdata/builtins/bool/neq.carbon
@@ -101,20 +101,20 @@ var d: C(false != false) = False();
 // CHECK:STDOUT:   %pattern_type.d8f: type = pattern_type %C.2ba [concrete]
 // CHECK:STDOUT:   %False.type: type = fn_type @False [concrete]
 // CHECK:STDOUT:   %False: %False.type = struct_value () [concrete]
-// CHECK:STDOUT:   %EqWith.type.a38: type = facet_type <@EqWith, @EqWith(bool)> [concrete]
+// CHECK:STDOUT:   %EqWith.type.863: type = facet_type <@EqWith, @EqWith(bool)> [concrete]
 // CHECK:STDOUT:   %EqWith.NotEqual.type.f03: type = fn_type @EqWith.NotEqual, @EqWith(bool) [concrete]
 // CHECK:STDOUT:   %EqWith.impl_witness: <witness> = impl_witness imports.%EqWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %EqWith.facet: %EqWith.type.a38 = facet_value bool, (%EqWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.c2f: type = fn_type_with_self_type %EqWith.NotEqual.type.f03, %EqWith.facet [concrete]
+// CHECK:STDOUT:   %EqWith.facet: %EqWith.type.863 = facet_value bool, (%EqWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.962: type = fn_type_with_self_type %EqWith.NotEqual.type.f03, %EqWith.facet [concrete]
 // CHECK:STDOUT:   %bool.as.EqWith.impl.NotEqual.type: type = fn_type @bool.as.EqWith.impl.NotEqual [concrete]
 // CHECK:STDOUT:   %bool.as.EqWith.impl.NotEqual: %bool.as.EqWith.impl.NotEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %bool.as.EqWith.impl.NotEqual.bound.0d4: <bound method> = bound_method %true, %bool.as.EqWith.impl.NotEqual [concrete]
+// CHECK:STDOUT:   %bool.as.EqWith.impl.NotEqual.bound.a7d: <bound method> = bound_method %true, %bool.as.EqWith.impl.NotEqual [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a67 = import_ref Core//prelude/operators/comparison, loc36_45, unloaded
-// CHECK:STDOUT:   %Core.import_ref.76f: %bool.as.EqWith.impl.NotEqual.type = import_ref Core//prelude/operators/comparison, loc37_48, loaded [concrete = constants.%bool.as.EqWith.impl.NotEqual]
-// CHECK:STDOUT:   %EqWith.impl_witness_table = impl_witness_table (%Core.import_ref.a67, %Core.import_ref.76f), @bool.as.EqWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.df5 = import_ref Core//prelude/operators/comparison, loc36_45, unloaded
+// CHECK:STDOUT:   %Core.import_ref.c93: %bool.as.EqWith.impl.NotEqual.type = import_ref Core//prelude/operators/comparison, loc37_48, loaded [concrete = constants.%bool.as.EqWith.impl.NotEqual]
+// CHECK:STDOUT:   %EqWith.impl_witness_table = impl_witness_table (%Core.import_ref.df5, %Core.import_ref.c93), @bool.as.EqWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -127,8 +127,8 @@ var d: C(false != false) = False();
 // CHECK:STDOUT:     %C.ref.loc10: %C.type = name_ref C, %C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %true.loc10_10: bool = bool_literal true [concrete = constants.%true]
 // CHECK:STDOUT:     %true.loc10_18: bool = bool_literal true [concrete = constants.%true]
-// CHECK:STDOUT:     %impl.elem1.loc10: %.c2f = impl_witness_access constants.%EqWith.impl_witness, element1 [concrete = constants.%bool.as.EqWith.impl.NotEqual]
-// CHECK:STDOUT:     %bound_method.loc10: <bound method> = bound_method %true.loc10_10, %impl.elem1.loc10 [concrete = constants.%bool.as.EqWith.impl.NotEqual.bound.0d4]
+// CHECK:STDOUT:     %impl.elem1.loc10: %.962 = impl_witness_access constants.%EqWith.impl_witness, element1 [concrete = constants.%bool.as.EqWith.impl.NotEqual]
+// CHECK:STDOUT:     %bound_method.loc10: <bound method> = bound_method %true.loc10_10, %impl.elem1.loc10 [concrete = constants.%bool.as.EqWith.impl.NotEqual.bound.a7d]
 // CHECK:STDOUT:     %bool.as.EqWith.impl.NotEqual.call.loc10: init bool = call %bound_method.loc10(%true.loc10_10, %true.loc10_18) [concrete = constants.%false]
 // CHECK:STDOUT:     %.loc10_22.2: bool = value_of_initializer %bool.as.EqWith.impl.NotEqual.call.loc10 [concrete = constants.%false]
 // CHECK:STDOUT:     %.loc10_22.3: bool = converted %bool.as.EqWith.impl.NotEqual.call.loc10, %.loc10_22.2 [concrete = constants.%false]
diff --git a/toolchain/check/testdata/builtins/float/convert_checked.carbon b/toolchain/check/testdata/builtins/float/convert_checked.carbon
index d2f46d3f4a17..fed0ddb8c03d 100644
--- a/toolchain/check/testdata/builtins/float/convert_checked.carbon
+++ b/toolchain/check/testdata/builtins/float/convert_checked.carbon
@@ -336,34 +336,34 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %Float64ToFloat64.type: type = fn_type @Float64ToFloat64 [concrete]
 // CHECK:STDOUT:   %Float64ToFloat64: %Float64ToFloat64.type = struct_value () [concrete]
 // CHECK:STDOUT:   %float.1f7: Core.FloatLiteral = float_literal_value 0e-1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.057: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
-// CHECK:STDOUT:   %bound_method.728: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.4de: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %bound_method.4dc: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.0a8: %f64.d77 = float_value 0 [concrete]
 // CHECK:STDOUT:   %float.674: Core.FloatLiteral = float_literal_value 10e-1 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.510: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %bound_method.3e8: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.45b: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %bound_method.93c: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.d20: %f64.d77 = float_value 1 [concrete]
 // CHECK:STDOUT:   %float.173: Core.FloatLiteral = float_literal_value 10e307 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.1a0: <bound method> = bound_method %float.173, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %bound_method.59e: <bound method> = bound_method %float.173, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6de: <bound method> = bound_method %float.173, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %bound_method.c13: <bound method> = bound_method %float.173, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.bde: %f64.d77 = float_value 1.0E+308 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.Float64ToFloat64: %Float64ToFloat64.type = import_ref Main//f64, Float64ToFloat64, loaded [concrete = constants.%Float64ToFloat64]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -403,30 +403,30 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Float64ToFloat64.ref.loc6: %Float64ToFloat64.type = name_ref Float64ToFloat64, imports.%Main.Float64ToFloat64 [concrete = constants.%Float64ToFloat64]
 // CHECK:STDOUT:   %float.loc6: Core.FloatLiteral = float_literal_value 0e-1 [concrete = constants.%float.1f7]
-// CHECK:STDOUT:   %impl.elem0.loc6: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
-// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float.loc6, %impl.elem0.loc6 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.057]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
+// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float.loc6, %impl.elem0.loc6 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.4de]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float.loc6, %specific_fn.loc6 [concrete = constants.%bound_method.728]
+// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float.loc6, %specific_fn.loc6 [concrete = constants.%bound_method.4dc]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc6: init %f64.d77 = call %bound_method.loc6_31.2(%float.loc6) [concrete = constants.%float.0a8]
 // CHECK:STDOUT:   %.loc6_31.1: %f64.d77 = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%float.0a8]
 // CHECK:STDOUT:   %.loc6_31.2: %f64.d77 = converted %float.loc6, %.loc6_31.1 [concrete = constants.%float.0a8]
 // CHECK:STDOUT:   %Float64ToFloat64.call.loc6: init %f64.d77 = call %Float64ToFloat64.ref.loc6(%.loc6_31.2) [concrete = constants.%float.0a8]
 // CHECK:STDOUT:   %Float64ToFloat64.ref.loc7: %Float64ToFloat64.type = name_ref Float64ToFloat64, imports.%Main.Float64ToFloat64 [concrete = constants.%Float64ToFloat64]
 // CHECK:STDOUT:   %float.loc7: Core.FloatLiteral = float_literal_value 10e-1 [concrete = constants.%float.674]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
-// CHECK:STDOUT:   %bound_method.loc7_31.1: <bound method> = bound_method %float.loc7, %impl.elem0.loc7 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.510]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
+// CHECK:STDOUT:   %bound_method.loc7_31.1: <bound method> = bound_method %float.loc7, %impl.elem0.loc7 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.45b]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_31.2: <bound method> = bound_method %float.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.3e8]
+// CHECK:STDOUT:   %bound_method.loc7_31.2: <bound method> = bound_method %float.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.93c]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc7: init %f64.d77 = call %bound_method.loc7_31.2(%float.loc7) [concrete = constants.%float.d20]
 // CHECK:STDOUT:   %.loc7_31.1: %f64.d77 = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc7 [concrete = constants.%float.d20]
 // CHECK:STDOUT:   %.loc7_31.2: %f64.d77 = converted %float.loc7, %.loc7_31.1 [concrete = constants.%float.d20]
 // CHECK:STDOUT:   %Float64ToFloat64.call.loc7: init %f64.d77 = call %Float64ToFloat64.ref.loc7(%.loc7_31.2) [concrete = constants.%float.d20]
 // CHECK:STDOUT:   %Float64ToFloat64.ref.loc8: %Float64ToFloat64.type = name_ref Float64ToFloat64, imports.%Main.Float64ToFloat64 [concrete = constants.%Float64ToFloat64]
 // CHECK:STDOUT:   %float.loc8: Core.FloatLiteral = float_literal_value 10e307 [concrete = constants.%float.173]
-// CHECK:STDOUT:   %impl.elem0.loc8: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
-// CHECK:STDOUT:   %bound_method.loc8_31.1: <bound method> = bound_method %float.loc8, %impl.elem0.loc8 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.1a0]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
+// CHECK:STDOUT:   %bound_method.loc8_31.1: <bound method> = bound_method %float.loc8, %impl.elem0.loc8 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6de]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_31.2: <bound method> = bound_method %float.loc8, %specific_fn.loc8 [concrete = constants.%bound_method.59e]
+// CHECK:STDOUT:   %bound_method.loc8_31.2: <bound method> = bound_method %float.loc8, %specific_fn.loc8 [concrete = constants.%bound_method.c13]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc8: init %f64.d77 = call %bound_method.loc8_31.2(%float.loc8) [concrete = constants.%float.bde]
 // CHECK:STDOUT:   %.loc8_31.1: %f64.d77 = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc8 [concrete = constants.%float.bde]
 // CHECK:STDOUT:   %.loc8_31.2: %f64.d77 = converted %float.loc8, %.loc8_31.1 [concrete = constants.%float.bde]
@@ -443,34 +443,34 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %Float32ToFloat32.type: type = fn_type @Float32ToFloat32 [concrete]
 // CHECK:STDOUT:   %Float32ToFloat32: %Float32ToFloat32.type = struct_value () [concrete]
 // CHECK:STDOUT:   %float.1f7: Core.FloatLiteral = float_literal_value 0e-1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.31d: type = facet_type <@ImplicitAs, @ImplicitAs(%f32.97e)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.223: type = facet_type <@ImplicitAs, @ImplicitAs(%f32.97e)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.b8c: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f32.97e) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e3f: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.43b: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.43b = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.31d = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.e3f) [concrete]
-// CHECK:STDOUT:   %.a5d: type = fn_type_with_self_type %ImplicitAs.Convert.type.b8c, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.b37: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.91e: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c4d: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.4bf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.4bf = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.223 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c4d) [concrete]
+// CHECK:STDOUT:   %.870: type = fn_type_with_self_type %ImplicitAs.Convert.type.b8c, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.927: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.bb9: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.4db: %f32.97e = float_value 0 [concrete]
 // CHECK:STDOUT:   %float.674: Core.FloatLiteral = float_literal_value 10e-1 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6d0: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3 [concrete]
-// CHECK:STDOUT:   %bound_method.6b4: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6f2: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563 [concrete]
+// CHECK:STDOUT:   %bound_method.56a: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.e3b: %f32.97e = float_value 1 [concrete]
 // CHECK:STDOUT:   %float.516: Core.FloatLiteral = float_literal_value 10e37 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.dc9: <bound method> = bound_method %float.516, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3 [concrete]
-// CHECK:STDOUT:   %bound_method.3b8: <bound method> = bound_method %float.516, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6fb: <bound method> = bound_method %float.516, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563 [concrete]
+// CHECK:STDOUT:   %bound_method.8c9: <bound method> = bound_method %float.516, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.520: %f32.97e = float_value 9.99999968E+37 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.Float32ToFloat32: %Float32ToFloat32.type = import_ref Main//f32, Float32ToFloat32, loaded [concrete = constants.%Float32ToFloat32]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -510,30 +510,30 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Float32ToFloat32.ref.loc6: %Float32ToFloat32.type = name_ref Float32ToFloat32, imports.%Main.Float32ToFloat32 [concrete = constants.%Float32ToFloat32]
 // CHECK:STDOUT:   %float.loc6: Core.FloatLiteral = float_literal_value 0e-1 [concrete = constants.%float.1f7]
-// CHECK:STDOUT:   %impl.elem0.loc6: %.a5d = impl_witness_access constants.%ImplicitAs.impl_witness.e3f, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3]
-// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float.loc6, %impl.elem0.loc6 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.b37]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.870 = impl_witness_access constants.%ImplicitAs.impl_witness.c4d, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.563]
+// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float.loc6, %impl.elem0.loc6 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.927]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float.loc6, %specific_fn.loc6 [concrete = constants.%bound_method.91e]
+// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float.loc6, %specific_fn.loc6 [concrete = constants.%bound_method.bb9]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc6: init %f32.97e = call %bound_method.loc6_31.2(%float.loc6) [concrete = constants.%float.4db]
 // CHECK:STDOUT:   %.loc6_31.1: %f32.97e = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%float.4db]
 // CHECK:STDOUT:   %.loc6_31.2: %f32.97e = converted %float.loc6, %.loc6_31.1 [concrete = constants.%float.4db]
 // CHECK:STDOUT:   %Float32ToFloat32.call.loc6: init %f32.97e = call %Float32ToFloat32.ref.loc6(%.loc6_31.2) [concrete = constants.%float.4db]
 // CHECK:STDOUT:   %Float32ToFloat32.ref.loc7: %Float32ToFloat32.type = name_ref Float32ToFloat32, imports.%Main.Float32ToFloat32 [concrete = constants.%Float32ToFloat32]
 // CHECK:STDOUT:   %float.loc7: Core.FloatLiteral = float_literal_value 10e-1 [concrete = constants.%float.674]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.a5d = impl_witness_access constants.%ImplicitAs.impl_witness.e3f, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3]
-// CHECK:STDOUT:   %bound_method.loc7_31.1: <bound method> = bound_method %float.loc7, %impl.elem0.loc7 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6d0]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.870 = impl_witness_access constants.%ImplicitAs.impl_witness.c4d, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.563]
+// CHECK:STDOUT:   %bound_method.loc7_31.1: <bound method> = bound_method %float.loc7, %impl.elem0.loc7 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6f2]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_31.2: <bound method> = bound_method %float.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.6b4]
+// CHECK:STDOUT:   %bound_method.loc7_31.2: <bound method> = bound_method %float.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.56a]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc7: init %f32.97e = call %bound_method.loc7_31.2(%float.loc7) [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %.loc7_31.1: %f32.97e = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc7 [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %.loc7_31.2: %f32.97e = converted %float.loc7, %.loc7_31.1 [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %Float32ToFloat32.call.loc7: init %f32.97e = call %Float32ToFloat32.ref.loc7(%.loc7_31.2) [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %Float32ToFloat32.ref.loc8: %Float32ToFloat32.type = name_ref Float32ToFloat32, imports.%Main.Float32ToFloat32 [concrete = constants.%Float32ToFloat32]
 // CHECK:STDOUT:   %float.loc8: Core.FloatLiteral = float_literal_value 10e37 [concrete = constants.%float.516]
-// CHECK:STDOUT:   %impl.elem0.loc8: %.a5d = impl_witness_access constants.%ImplicitAs.impl_witness.e3f, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3]
-// CHECK:STDOUT:   %bound_method.loc8_31.1: <bound method> = bound_method %float.loc8, %impl.elem0.loc8 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.dc9]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.870 = impl_witness_access constants.%ImplicitAs.impl_witness.c4d, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.563]
+// CHECK:STDOUT:   %bound_method.loc8_31.1: <bound method> = bound_method %float.loc8, %impl.elem0.loc8 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6fb]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_31.2: <bound method> = bound_method %float.loc8, %specific_fn.loc8 [concrete = constants.%bound_method.3b8]
+// CHECK:STDOUT:   %bound_method.loc8_31.2: <bound method> = bound_method %float.loc8, %specific_fn.loc8 [concrete = constants.%bound_method.8c9]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc8: init %f32.97e = call %bound_method.loc8_31.2(%float.loc8) [concrete = constants.%float.520]
 // CHECK:STDOUT:   %.loc8_31.1: %f32.97e = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc8 [concrete = constants.%float.520]
 // CHECK:STDOUT:   %.loc8_31.2: %f32.97e = converted %float.loc8, %.loc8_31.1 [concrete = constants.%float.520]
@@ -552,18 +552,18 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %int_64: Core.IntLiteral = int_value 64 [concrete]
 // CHECK:STDOUT:   %f64.d77: type = class_type @Float, @Float(%int_64) [concrete]
 // CHECK:STDOUT:   %float.674: Core.FloatLiteral = float_literal_value 10e-1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.d20: %f64.d77 = float_value 1 [concrete]
 // CHECK:STDOUT:   %float.e3b: %f32.97e = float_value 1 [concrete]
@@ -571,8 +571,8 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.Float64ToFloat32: %Float64ToFloat32.type = import_ref Main//f32, Float64ToFloat32, loaded [concrete = constants.%Float64ToFloat32]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -592,7 +592,7 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Float64ToFloat32.ref: %Float64ToFloat32.type = name_ref Float64ToFloat32, imports.%Main.Float64ToFloat32 [concrete = constants.%Float64ToFloat32]
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 10e-1 [concrete = constants.%float.674]
-// CHECK:STDOUT:   %impl.elem0: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -615,18 +615,18 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %f64.d77: type = class_type @Float, @Float(%int_64) [concrete]
 // CHECK:STDOUT:   %pattern_type.0ae: type = pattern_type %f64.d77 [concrete]
 // CHECK:STDOUT:   %float.bfd691.1: Core.FloatLiteral = float_literal_value 10e38 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.bfd691.1, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.bfd691.1, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.bfd691.1, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.c37: %f64.d77 = float_value 9.9999999999999994E+38 [concrete]
 // CHECK:STDOUT:   %FloatLiteralToFloat32.type: type = fn_type @FloatLiteralToFloat32 [concrete]
@@ -641,8 +641,8 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %Main.FloatLiteralToFloat32: %FloatLiteralToFloat32.type = import_ref Main//f32, FloatLiteralToFloat32, loaded [concrete = constants.%FloatLiteralToFloat32]
 // CHECK:STDOUT:   %Main.Float64ToFloat32: %Float64ToFloat32.type = import_ref Main//f32, Float64ToFloat32, loaded [concrete = constants.%Float64ToFloat32]
 // CHECK:STDOUT:   %Main.FloatLiteralToFloat64: %FloatLiteralToFloat64.type = import_ref Main//f64, FloatLiteralToFloat64, loaded [concrete = constants.%FloatLiteralToFloat64]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -682,7 +682,7 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Float64ToFloat32.ref: %Float64ToFloat32.type = name_ref Float64ToFloat32, imports.%Main.Float64ToFloat32 [concrete = constants.%Float64ToFloat32]
 // CHECK:STDOUT:   %float.loc11: Core.FloatLiteral = float_literal_value 10e38 [concrete = constants.%float.bfd691.1]
-// CHECK:STDOUT:   %impl.elem0: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc11_31.1: <bound method> = bound_method %float.loc11, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc11_31.2: <bound method> = bound_method %float.loc11, %specific_fn [concrete = constants.%bound_method]
@@ -710,32 +710,32 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %f32.97e: type = class_type @Float, @Float(%int_32) [concrete]
 // CHECK:STDOUT:   %float.674: Core.FloatLiteral = float_literal_value 10e-1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.31d: type = facet_type <@ImplicitAs, @ImplicitAs(%f32.97e)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.223: type = facet_type <@ImplicitAs, @ImplicitAs(%f32.97e)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.b8c: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f32.97e) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e3f: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.43b: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.43b = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.31d = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.e3f) [concrete]
-// CHECK:STDOUT:   %.a5d: type = fn_type_with_self_type %ImplicitAs.Convert.type.b8c, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6d0: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.6b4: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c4d: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.4bf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.4bf = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.223 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c4d) [concrete]
+// CHECK:STDOUT:   %.870: type = fn_type_with_self_type %ImplicitAs.Convert.type.b8c, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6f2: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.56a: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.e3b: %f32.97e = float_value 1 [concrete]
 // CHECK:STDOUT:   %float.d20: %f64.d77 = float_value 1 [concrete]
 // CHECK:STDOUT:   %float.9bd: Core.FloatLiteral = float_literal_value 10e29 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.a5c: <bound method> = bound_method %float.9bd, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3 [concrete]
-// CHECK:STDOUT:   %bound_method.3e4: <bound method> = bound_method %float.9bd, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.342: <bound method> = bound_method %float.9bd, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.563 [concrete]
+// CHECK:STDOUT:   %bound_method.335: <bound method> = bound_method %float.9bd, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.7d4: %f32.97e = float_value 1.00000002E+30 [concrete]
 // CHECK:STDOUT:   %float.6a7: %f64.d77 = float_value 1.0000000150474662E+30 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.Float32ToFloat64: %Float32ToFloat64.type = import_ref Main//f32, Float32ToFloat64, loaded [concrete = constants.%Float32ToFloat64]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -765,20 +765,20 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Float32ToFloat64.ref.loc6: %Float32ToFloat64.type = name_ref Float32ToFloat64, imports.%Main.Float32ToFloat64 [concrete = constants.%Float32ToFloat64]
 // CHECK:STDOUT:   %float.loc6: Core.FloatLiteral = float_literal_value 10e-1 [concrete = constants.%float.674]
-// CHECK:STDOUT:   %impl.elem0.loc6: %.a5d = impl_witness_access constants.%ImplicitAs.impl_witness.e3f, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3]
-// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float.loc6, %impl.elem0.loc6 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6d0]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.870 = impl_witness_access constants.%ImplicitAs.impl_witness.c4d, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.563]
+// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %float.loc6, %impl.elem0.loc6 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.6f2]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float.loc6, %specific_fn.loc6 [concrete = constants.%bound_method.6b4]
+// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %float.loc6, %specific_fn.loc6 [concrete = constants.%bound_method.56a]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc6: init %f32.97e = call %bound_method.loc6_31.2(%float.loc6) [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %.loc6_31.1: %f32.97e = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %.loc6_31.2: %f32.97e = converted %float.loc6, %.loc6_31.1 [concrete = constants.%float.e3b]
 // CHECK:STDOUT:   %Float32ToFloat64.call.loc6: init %f64.d77 = call %Float32ToFloat64.ref.loc6(%.loc6_31.2) [concrete = constants.%float.d20]
 // CHECK:STDOUT:   %Float32ToFloat64.ref.loc7: %Float32ToFloat64.type = name_ref Float32ToFloat64, imports.%Main.Float32ToFloat64 [concrete = constants.%Float32ToFloat64]
 // CHECK:STDOUT:   %float.loc7: Core.FloatLiteral = float_literal_value 10e29 [concrete = constants.%float.9bd]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.a5d = impl_witness_access constants.%ImplicitAs.impl_witness.e3f, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.1a3]
-// CHECK:STDOUT:   %bound_method.loc7_31.1: <bound method> = bound_method %float.loc7, %impl.elem0.loc7 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.a5c]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.870 = impl_witness_access constants.%ImplicitAs.impl_witness.c4d, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.563]
+// CHECK:STDOUT:   %bound_method.loc7_31.1: <bound method> = bound_method %float.loc7, %impl.elem0.loc7 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound.342]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_31.2: <bound method> = bound_method %float.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.3e4]
+// CHECK:STDOUT:   %bound_method.loc7_31.2: <bound method> = bound_method %float.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.335]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc7: init %f32.97e = call %bound_method.loc7_31.2(%float.loc7) [concrete = constants.%float.7d4]
 // CHECK:STDOUT:   %.loc7_31.1: %f32.97e = value_of_initializer %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call.loc7 [concrete = constants.%float.7d4]
 // CHECK:STDOUT:   %.loc7_31.2: %f32.97e = converted %float.loc7, %.loc7_31.1 [concrete = constants.%float.7d4]
@@ -793,18 +793,18 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:   %f64.d77: type = class_type @Float, @Float(%int_64) [concrete]
 // CHECK:STDOUT:   %pattern_type.0ae: type = pattern_type %f64.d77 [concrete]
 // CHECK:STDOUT:   %float.1f7: Core.FloatLiteral = float_literal_value 0e-1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.0a8: %f64.d77 = float_value 0 [concrete]
 // CHECK:STDOUT:   %Float64ToFloat64.type: type = fn_type @Float64ToFloat64 [concrete]
@@ -813,8 +813,8 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.Float64ToFloat64: %Float64ToFloat64.type = import_ref Main//f64, Float64ToFloat64, loaded [concrete = constants.%Float64ToFloat64]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -825,7 +825,7 @@ let convert_not_constant: f64 = Float64ToFloat64(not_constant_64);
 // CHECK:STDOUT:     %int_64.loc6: Core.IntLiteral = int_value 64 [concrete = constants.%int_64]
 // CHECK:STDOUT:     %f64.loc6: type = class_type @Float, @Float(constants.%int_64) [concrete = constants.%f64.d77]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc6_28.1: <bound method> = bound_method @__global_init.%float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_28.2: <bound method> = bound_method @__global_init.%float, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/builtins/int/convert_checked.carbon b/toolchain/check/testdata/builtins/int/convert_checked.carbon
index 5f7bf1d9d91b..e5c0f7c495be 100644
--- a/toolchain/check/testdata/builtins/int/convert_checked.carbon
+++ b/toolchain/check/testdata/builtins/int/convert_checked.carbon
@@ -272,18 +272,18 @@ let convert_not_constant_widen: i64 = Int32ToInt64(not_constant);
 // CHECK:STDOUT:   %Int32ToUint32: %Int32ToUint32.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9ba: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.cf3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.6da: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e34: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e36, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.9ba = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e34) [concrete]
-// CHECK:STDOUT:   %.d6a: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ed2: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ba4, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.cf3 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed2) [concrete]
+// CHECK:STDOUT:   %.2c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_1.c1d: %u32 = int_value 1 [concrete]
@@ -305,8 +305,8 @@ let convert_not_constant_widen: i64 = Int32ToInt64(not_constant);
 // CHECK:STDOUT:   %Main.Int32ToUint32: %Int32ToUint32.type = import_ref Main//int_ops, Int32ToUint32, loaded [concrete = constants.%Int32ToUint32]
 // CHECK:STDOUT:   %Main.Int32ToInt16: %Int32ToInt16.type = import_ref Main//int_ops, Int32ToInt16, loaded [concrete = constants.%Int32ToInt16]
 // CHECK:STDOUT:   %Main.Int32ToInt64: %Int32ToInt64.type = import_ref Main//int_ops, Int32ToInt64, loaded [concrete = constants.%Int32ToInt64]
-// CHECK:STDOUT:   %Core.import_ref.a86c: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e36 = impl_witness_table (%Core.import_ref.a86c), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7bb: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ba4 = impl_witness_table (%Core.import_ref.7bb), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -346,7 +346,7 @@ let convert_not_constant_widen: i64 = Int32ToInt64(not_constant);
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Int32ToUint32.ref: %Int32ToUint32.type = name_ref Int32ToUint32, imports.%Main.Int32ToUint32 [concrete = constants.%Int32ToUint32]
 // CHECK:STDOUT:   %int_1.loc6: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc6: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
 // CHECK:STDOUT:   %bound_method.loc6_41.1: <bound method> = bound_method %int_1.loc6, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_41.2: <bound method> = bound_method %int_1.loc6, %specific_fn.loc6 [concrete = constants.%bound_method]
@@ -356,7 +356,7 @@ let convert_not_constant_widen: i64 = Int32ToInt64(not_constant);
 // CHECK:STDOUT:   %Int32ToUint32.call: init %u32 = call %Int32ToUint32.ref(%.loc6_41.2) [concrete = constants.%int_1.c1d]
 // CHECK:STDOUT:   %Int32ToInt16.ref: %Int32ToInt16.type = name_ref Int32ToInt16, imports.%Main.Int32ToInt16 [concrete = constants.%Int32ToInt16]
 // CHECK:STDOUT:   %int_1.loc7: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
 // CHECK:STDOUT:   %bound_method.loc7_35.1: <bound method> = bound_method %int_1.loc7, %impl.elem0.loc7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_35.2: <bound method> = bound_method %int_1.loc7, %specific_fn.loc7 [concrete = constants.%bound_method]
@@ -366,7 +366,7 @@ let convert_not_constant_widen: i64 = Int32ToInt64(not_constant);
 // CHECK:STDOUT:   %Int32ToInt16.call: init %i16 = call %Int32ToInt16.ref(%.loc7_35.2) [concrete = constants.%int_1.c22]
 // CHECK:STDOUT:   %Int32ToInt64.ref: %Int32ToInt64.type = name_ref Int32ToInt64, imports.%Main.Int32ToInt64 [concrete = constants.%Int32ToInt64]
 // CHECK:STDOUT:   %int_1.loc8: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc8: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
 // CHECK:STDOUT:   %bound_method.loc8_34.1: <bound method> = bound_method %int_1.loc8, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_34.2: <bound method> = bound_method %int_1.loc8, %specific_fn.loc8 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/builtins/print/char.carbon b/toolchain/check/testdata/builtins/print/char.carbon
index 46a1d246a7b1..d35ce39e1b35 100644
--- a/toolchain/check/testdata/builtins/print/char.carbon
+++ b/toolchain/check/testdata/builtins/print/char.carbon
@@ -33,25 +33,25 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %PrintChar.type.089: type = fn_type @PrintChar.1 [concrete]
 // CHECK:STDOUT:   %PrintChar.d75: %PrintChar.type.089 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -66,8 +66,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.PrintChar: %PrintChar.type.089 = import_ref Core//io, PrintChar, loaded [concrete = constants.%PrintChar.d75]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -75,10 +75,10 @@ fn Main() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %PrintChar.ref.loc19: %PrintChar.type.c95 = name_ref PrintChar, file.%PrintChar.decl [concrete = constants.%PrintChar.843]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc19: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc19_13.1: <bound method> = bound_method %int_1, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc19: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc19_13.1: <bound method> = bound_method %int_1, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc19: <specific function> = specific_function %impl.elem0.loc19, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc19_13.2: <bound method> = bound_method %int_1, %specific_fn.loc19 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc19_13.2: <bound method> = bound_method %int_1, %specific_fn.loc19 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19: init %i32 = call %bound_method.loc19_13.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_13.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_13.2: %i32 = converted %int_1, %.loc19_13.1 [concrete = constants.%int_1.5d2]
@@ -86,10 +86,10 @@ fn Main() {
 // CHECK:STDOUT:   %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:   %PrintChar.ref.loc20: %PrintChar.type.089 = name_ref PrintChar, imports.%Core.PrintChar [concrete = constants.%PrintChar.d75]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_18.1: <bound method> = bound_method %int_2, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_18.1: <bound method> = bound_method %int_2, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_18.2: <bound method> = bound_method %int_2, %specific_fn.loc20 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc20_18.2: <bound method> = bound_method %int_2, %specific_fn.loc20 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_18.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc20_18.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc20_18.2: %i32 = converted %int_2, %.loc20_18.1 [concrete = constants.%int_2.ef8]
diff --git a/toolchain/check/testdata/builtins/print/int.carbon b/toolchain/check/testdata/builtins/print/int.carbon
index 2fbedfe604cc..921370ec897c 100644
--- a/toolchain/check/testdata/builtins/print/int.carbon
+++ b/toolchain/check/testdata/builtins/print/int.carbon
@@ -34,25 +34,25 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Print.type.6ed: type = fn_type @Print.1 [concrete]
 // CHECK:STDOUT:   %Print.723: %Print.type.6ed = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -67,8 +67,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Print: %Print.type.6ed = import_ref Core//io, Print, loaded [concrete = constants.%Print.723]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -76,10 +76,10 @@ fn Main() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Print.ref.loc19: %Print.type.980 = name_ref Print, file.%Print.decl [concrete = constants.%Print.b7c]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc19: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc19_9.1: <bound method> = bound_method %int_1, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc19: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc19_9.1: <bound method> = bound_method %int_1, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc19: <specific function> = specific_function %impl.elem0.loc19, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc19_9.2: <bound method> = bound_method %int_1, %specific_fn.loc19 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc19_9.2: <bound method> = bound_method %int_1, %specific_fn.loc19 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19: init %i32 = call %bound_method.loc19_9.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_9.2: %i32 = converted %int_1, %.loc19_9.1 [concrete = constants.%int_1.5d2]
@@ -87,10 +87,10 @@ fn Main() {
 // CHECK:STDOUT:   %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:   %Print.ref.loc20: %Print.type.6ed = name_ref Print, imports.%Core.Print [concrete = constants.%Print.723]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_14.1: <bound method> = bound_method %int_2, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_14.1: <bound method> = bound_method %int_2, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_14.2: <bound method> = bound_method %int_2, %specific_fn.loc20 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc20_14.2: <bound method> = bound_method %int_2, %specific_fn.loc20 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_14.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc20_14.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc20_14.2: %i32 = converted %int_2, %.loc20_14.1 [concrete = constants.%int_2.ef8]
diff --git a/toolchain/check/testdata/choice/basic.carbon b/toolchain/check/testdata/choice/basic.carbon
index 152ec3c54700..7ac5026001a3 100644
--- a/toolchain/check/testdata/choice/basic.carbon
+++ b/toolchain/check/testdata/choice/basic.carbon
@@ -143,41 +143,41 @@ let never: Never = {};
 // CHECK:STDOUT:   %struct_type.discriminant: type = struct_type {.discriminant: %u2} [concrete]
 // CHECK:STDOUT:   %complete_type.de2: <witness> = complete_type_witness %struct_type.discriminant [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.54b: type = facet_type <@ImplicitAs, @ImplicitAs(%u2)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.a92: type = facet_type <@ImplicitAs, @ImplicitAs(%u2)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.f0e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%u2) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.d1a: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.801: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.bb8, @Core.IntLiteral.as.ImplicitAs.impl(%int_2.ecc) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.70b: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_2.ecc) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.474: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.70b = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.54b = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.801) [concrete]
-// CHECK:STDOUT:   %.3e0: type = fn_type_with_self_type %ImplicitAs.Convert.type.f0e, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.5bb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.474 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.474, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_2.ecc) [concrete]
-// CHECK:STDOUT:   %bound_method.d36: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.8f6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.b0d: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b63, @Core.IntLiteral.as.ImplicitAs.impl(%int_2.ecc) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.534: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_2.ecc) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.534 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.a92 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.b0d) [concrete]
+// CHECK:STDOUT:   %.a66: type = fn_type_with_self_type %ImplicitAs.Convert.type.f0e, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.289: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_2.ecc) [concrete]
+// CHECK:STDOUT:   %bound_method.7b7: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.9fd: %u2 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Ordering.val.a29: %Ordering = struct_value (%int_0.9fd) [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0dd: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.474 [concrete]
-// CHECK:STDOUT:   %bound_method.6bf: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fd2: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2 [concrete]
+// CHECK:STDOUT:   %bound_method.e28: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.b2c: %u2 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Ordering.val.927: %Ordering = struct_value (%int_1.b2c) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.122: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.474 [concrete]
-// CHECK:STDOUT:   %bound_method.f7d: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.53a: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2 [concrete]
+// CHECK:STDOUT:   %bound_method.aa0: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.788: %u2 = int_value 2 [concrete]
 // CHECK:STDOUT:   %Ordering.val.968: %Ordering = struct_value (%int_2.788) [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a5c: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.474 [concrete]
-// CHECK:STDOUT:   %bound_method.c7e: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9f9: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2 [concrete]
+// CHECK:STDOUT:   %bound_method.b35: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.975: %u2 = int_value 3 [concrete]
 // CHECK:STDOUT:   %Ordering.val.8a7: %Ordering = struct_value (%int_3.975) [concrete]
 // CHECK:STDOUT:   %pattern_type.308: type = pattern_type %Ordering [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.c3d: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e) = import_ref Core//prelude/parts/uint, loc16_40, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.d1a)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.bb8 = impl_witness_table (%Core.import_ref.c3d), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.104: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367) = import_ref Core//prelude/parts/uint, loc16_40, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.8f6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b63 = impl_witness_table (%Core.import_ref.104), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -209,10 +209,10 @@ let never: Never = {};
 // CHECK:STDOUT:   %u2: type = class_type @UInt, @UInt(constants.%int_2.ecc) [concrete = constants.%u2]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.discriminant [concrete = constants.%complete_type.de2]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc5: %.3e0 = impl_witness_access constants.%ImplicitAs.impl_witness.801, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.474]
-// CHECK:STDOUT:   %bound_method.loc5_7.1: <bound method> = bound_method %int_0, %impl.elem0.loc5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.5bb]
+// CHECK:STDOUT:   %impl.elem0.loc5: %.a66 = impl_witness_access constants.%ImplicitAs.impl_witness.b0d, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2]
+// CHECK:STDOUT:   %bound_method.loc5_7.1: <bound method> = bound_method %int_0, %impl.elem0.loc5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.289]
 // CHECK:STDOUT:   %specific_fn.loc5: <specific function> = specific_function %impl.elem0.loc5, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_2.ecc) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc5_7.2: <bound method> = bound_method %int_0, %specific_fn.loc5 [concrete = constants.%bound_method.d36]
+// CHECK:STDOUT:   %bound_method.loc5_7.2: <bound method> = bound_method %int_0, %specific_fn.loc5 [concrete = constants.%bound_method.7b7]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc5: init %u2 = call %bound_method.loc5_7.2(%int_0) [concrete = constants.%int_0.9fd]
 // CHECK:STDOUT:   %.loc5_7.1: %u2 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc5 [concrete = constants.%int_0.9fd]
 // CHECK:STDOUT:   %.loc5_7.2: %u2 = converted %int_0, %.loc5_7.1 [concrete = constants.%int_0.9fd]
@@ -226,10 +226,10 @@ let never: Never = {};
 // CHECK:STDOUT:   %.loc5_7.10: %Ordering = bind_value %.loc5_7.9
 // CHECK:STDOUT:   %Less: %Ordering = bind_name Less, %.loc5_7.10
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc6: %.3e0 = impl_witness_access constants.%ImplicitAs.impl_witness.801, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.474]
-// CHECK:STDOUT:   %bound_method.loc6_13.1: <bound method> = bound_method %int_1, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0dd]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.a66 = impl_witness_access constants.%ImplicitAs.impl_witness.b0d, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2]
+// CHECK:STDOUT:   %bound_method.loc6_13.1: <bound method> = bound_method %int_1, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fd2]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_2.ecc) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_13.2: <bound method> = bound_method %int_1, %specific_fn.loc6 [concrete = constants.%bound_method.6bf]
+// CHECK:STDOUT:   %bound_method.loc6_13.2: <bound method> = bound_method %int_1, %specific_fn.loc6 [concrete = constants.%bound_method.e28]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6: init %u2 = call %bound_method.loc6_13.2(%int_1) [concrete = constants.%int_1.b2c]
 // CHECK:STDOUT:   %.loc6_13.1: %u2 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%int_1.b2c]
 // CHECK:STDOUT:   %.loc6_13.2: %u2 = converted %int_1, %.loc6_13.1 [concrete = constants.%int_1.b2c]
@@ -243,10 +243,10 @@ let never: Never = {};
 // CHECK:STDOUT:   %.loc6_13.10: %Ordering = bind_value %.loc6_13.9
 // CHECK:STDOUT:   %Equivalent: %Ordering = bind_name Equivalent, %.loc6_13.10
 // CHECK:STDOUT:   %int_2.loc7: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.3e0 = impl_witness_access constants.%ImplicitAs.impl_witness.801, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.474]
-// CHECK:STDOUT:   %bound_method.loc7_10.1: <bound method> = bound_method %int_2.loc7, %impl.elem0.loc7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.122]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.a66 = impl_witness_access constants.%ImplicitAs.impl_witness.b0d, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2]
+// CHECK:STDOUT:   %bound_method.loc7_10.1: <bound method> = bound_method %int_2.loc7, %impl.elem0.loc7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.53a]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_2.ecc) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_10.2: <bound method> = bound_method %int_2.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.f7d]
+// CHECK:STDOUT:   %bound_method.loc7_10.2: <bound method> = bound_method %int_2.loc7, %specific_fn.loc7 [concrete = constants.%bound_method.aa0]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7: init %u2 = call %bound_method.loc7_10.2(%int_2.loc7) [concrete = constants.%int_2.788]
 // CHECK:STDOUT:   %.loc7_10.1: %u2 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7 [concrete = constants.%int_2.788]
 // CHECK:STDOUT:   %.loc7_10.2: %u2 = converted %int_2.loc7, %.loc7_10.1 [concrete = constants.%int_2.788]
@@ -260,10 +260,10 @@ let never: Never = {};
 // CHECK:STDOUT:   %.loc7_10.10: %Ordering = bind_value %.loc7_10.9
 // CHECK:STDOUT:   %Greater: %Ordering = bind_name Greater, %.loc7_10.10
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc9: %.3e0 = impl_witness_access constants.%ImplicitAs.impl_witness.801, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.474]
-// CHECK:STDOUT:   %bound_method.loc9_1.1: <bound method> = bound_method %int_3, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a5c]
+// CHECK:STDOUT:   %impl.elem0.loc9: %.a66 = impl_witness_access constants.%ImplicitAs.impl_witness.b0d, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.0b2]
+// CHECK:STDOUT:   %bound_method.loc9_1.1: <bound method> = bound_method %int_3, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9f9]
 // CHECK:STDOUT:   %specific_fn.loc9: <specific function> = specific_function %impl.elem0.loc9, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_2.ecc) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_1.2: <bound method> = bound_method %int_3, %specific_fn.loc9 [concrete = constants.%bound_method.c7e]
+// CHECK:STDOUT:   %bound_method.loc9_1.2: <bound method> = bound_method %int_3, %specific_fn.loc9 [concrete = constants.%bound_method.b35]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9: init %u2 = call %bound_method.loc9_1.2(%int_3) [concrete = constants.%int_3.975]
 // CHECK:STDOUT:   %.loc9_1.1: %u2 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9 [concrete = constants.%int_3.975]
 // CHECK:STDOUT:   %.loc9_1.2: %u2 = converted %int_3, %.loc9_1.1 [concrete = constants.%int_3.975]
diff --git a/toolchain/check/testdata/class/access_modifers.carbon b/toolchain/check/testdata/class/access_modifers.carbon
index 7b0a993b664b..2cffe60f2ce6 100644
--- a/toolchain/check/testdata/class/access_modifers.carbon
+++ b/toolchain/check/testdata/class/access_modifers.carbon
@@ -164,28 +164,28 @@ class A {
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %Circle.SomeInternalFunction.type: type = fn_type @Circle.SomeInternalFunction [concrete]
 // CHECK:STDOUT:   %Circle.SomeInternalFunction: %Circle.SomeInternalFunction.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.ce2: type = pattern_type %Circle [concrete]
 // CHECK:STDOUT:   %Circle.Make.type: type = fn_type @Circle.Make [concrete]
 // CHECK:STDOUT:   %Circle.Make: %Circle.Make.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2a8: <witness> = impl_witness @Circle.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62c: <witness> = impl_witness @Circle.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.54d: type = ptr_type %Circle [concrete]
 // CHECK:STDOUT:   %pattern_type.f32: type = pattern_type %ptr.54d [concrete]
 // CHECK:STDOUT:   %Circle.as.Destroy.impl.Op.type: type = fn_type @Circle.as.Destroy.impl.Op [concrete]
@@ -193,8 +193,8 @@ class A {
 // CHECK:STDOUT:   %struct_type.radius.251: type = struct_type {.radius: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.5a5: <witness> = complete_type_witness %struct_type.radius.251 [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %struct_type.radius.f47: type = struct_type {.radius: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %Circle.val: %Circle = struct_value (%int_5.0f6) [concrete]
@@ -212,8 +212,8 @@ class A {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -256,10 +256,10 @@ class A {
 // CHECK:STDOUT:     %int_32.loc6: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_45.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_45.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_45.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc6_45.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc6_45.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc6_45.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc6_45.2: %i32 = converted %int_5, %.loc6_45.1 [concrete = constants.%int_5.0f6]
@@ -284,7 +284,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Circle [concrete = constants.%Circle]
 // CHECK:STDOUT:   impl_decl @Circle.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Circle.as.Destroy.impl.%Circle.as.Destroy.impl.Op.decl), @Circle.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2a8]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.radius.251 [concrete = constants.%complete_type.5a5]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -299,10 +299,10 @@ class A {
 // CHECK:STDOUT: fn @Circle.SomeInternalFunction() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_13.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_13.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_13.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc9_13.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc9_13.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc9_13.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc9_13.2: %i32 = converted %int_0, %.loc9_13.1 [concrete = constants.%int_0.6a9]
@@ -313,10 +313,10 @@ class A {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
 // CHECK:STDOUT:   %.loc13_24.1: %struct_type.radius.f47 = struct_literal (%int_5)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_24.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_24.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_24.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc13_24.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc13_24.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc13_24.2: init %i32 = converted %int_5, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc13_24.3: ref %i32 = class_element_access %return, element0
@@ -478,7 +478,7 @@ class A {
 // CHECK:STDOUT:   %Circle.Compute: %Circle.Compute.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2a8: <witness> = impl_witness @Circle.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62c: <witness> = impl_witness @Circle.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.54d: type = ptr_type %Circle [concrete]
 // CHECK:STDOUT:   %pattern_type.f32: type = pattern_type %ptr.54d [concrete]
 // CHECK:STDOUT:   %Circle.as.Destroy.impl.Op.type: type = fn_type @Circle.as.Destroy.impl.Op [concrete]
@@ -488,18 +488,18 @@ class A {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -515,8 +515,8 @@ class A {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -588,7 +588,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Circle [concrete = constants.%Circle]
 // CHECK:STDOUT:   impl_decl @Circle.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Circle.as.Destroy.impl.%Circle.as.Destroy.impl.Op.decl), @Circle.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2a8]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.radius [concrete = constants.%complete_type.5a5]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -612,7 +612,7 @@ class A {
 // CHECK:STDOUT: fn @Circle.SomeInternalFunction() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc12_13.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_13.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -646,23 +646,23 @@ class A {
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -681,8 +681,8 @@ class A {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -729,7 +729,7 @@ class A {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc5_16.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc5_16.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method]
@@ -740,7 +740,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -770,23 +770,23 @@ class A {
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -805,8 +805,8 @@ class A {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -862,7 +862,7 @@ class A {
 // CHECK:STDOUT:     %int_32.loc5: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc5: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc5: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc5: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc5_26.1: <bound method> = bound_method %int_5.loc5, %impl.elem0.loc5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc5: <specific function> = specific_function %impl.elem0.loc5, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc5_26.2: <bound method> = bound_method %int_5.loc5, %specific_fn.loc5 [concrete = constants.%bound_method]
@@ -878,7 +878,7 @@ class A {
 // CHECK:STDOUT:     %int_32.loc6: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc6: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc6_24.1: <bound method> = bound_method %int_5.loc6, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_24.2: <bound method> = bound_method %int_5.loc6, %specific_fn.loc6 [concrete = constants.%bound_method]
@@ -889,7 +889,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/adapter/adapt.carbon b/toolchain/check/testdata/class/adapter/adapt.carbon
index 5fb6a491c4d7..96513cde37c7 100644
--- a/toolchain/check/testdata/class/adapter/adapt.carbon
+++ b/toolchain/check/testdata/class/adapter/adapt.carbon
@@ -79,7 +79,7 @@ interface I {
 // CHECK:STDOUT:   %SomeClass.elem: type = unbound_element_type %SomeClass, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ab1: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cf8: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.c8a: type = ptr_type %SomeClass [concrete]
 // CHECK:STDOUT:   %pattern_type.a47: type = pattern_type %ptr.c8a [concrete]
 // CHECK:STDOUT:   %SomeClass.as.Destroy.impl.Op.type: type = fn_type @SomeClass.as.Destroy.impl.Op [concrete]
@@ -87,13 +87,13 @@ interface I {
 // CHECK:STDOUT:   %struct_type.a.b: type = struct_type {.a: %i32, .b: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.705: <witness> = complete_type_witness %struct_type.a.b [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter: type = class_type @SomeClassAdapter [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.84c: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.f5a: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.b51: type = ptr_type %SomeClassAdapter [concrete]
 // CHECK:STDOUT:   %pattern_type.76d: type = pattern_type %ptr.b51 [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter.as.Destroy.impl.Op.type: type = fn_type @SomeClassAdapter.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter.as.Destroy.impl.Op: %SomeClassAdapter.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %StructAdapter: type = class_type @StructAdapter [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.6e0: <witness> = impl_witness @StructAdapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9fe: <witness> = impl_witness @StructAdapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.670: type = ptr_type %StructAdapter [concrete]
 // CHECK:STDOUT:   %pattern_type.671: type = pattern_type %ptr.670 [concrete]
 // CHECK:STDOUT:   %StructAdapter.as.Destroy.impl.Op.type: type = fn_type @StructAdapter.as.Destroy.impl.Op [concrete]
@@ -182,7 +182,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClass [concrete = constants.%SomeClass]
 // CHECK:STDOUT:   impl_decl @SomeClass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClass.as.Destroy.impl.%SomeClass.as.Destroy.impl.Op.decl), @SomeClass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ab1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cf8]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -198,7 +198,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClassAdapter [concrete = constants.%SomeClassAdapter]
 // CHECK:STDOUT:   impl_decl @SomeClassAdapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClassAdapter.as.Destroy.impl.%SomeClassAdapter.as.Destroy.impl.Op.decl), @SomeClassAdapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.84c]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f5a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -217,7 +217,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%StructAdapter [concrete = constants.%StructAdapter]
 // CHECK:STDOUT:   impl_decl @StructAdapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@StructAdapter.as.Destroy.impl.%StructAdapter.as.Destroy.impl.Op.decl), @StructAdapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6e0]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9fe]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -239,7 +239,7 @@ interface I {
 // CHECK:STDOUT:   %Adapted.F: %Adapted.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d23: <witness> = impl_witness @Adapted.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.17c: <witness> = impl_witness @Adapted.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.08d: type = ptr_type %Adapted [concrete]
 // CHECK:STDOUT:   %pattern_type.c04: type = pattern_type %ptr.08d [concrete]
 // CHECK:STDOUT:   %Adapted.as.Destroy.impl.Op.type: type = fn_type @Adapted.as.Destroy.impl.Op [concrete]
@@ -247,7 +247,7 @@ interface I {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %AdaptNotExtend: type = class_type @AdaptNotExtend [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.f9b: <witness> = impl_witness @AdaptNotExtend.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.04b: <witness> = impl_witness @AdaptNotExtend.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.ae9: type = ptr_type %AdaptNotExtend [concrete]
 // CHECK:STDOUT:   %pattern_type.73e: type = pattern_type %ptr.ae9 [concrete]
 // CHECK:STDOUT:   %AdaptNotExtend.as.Destroy.impl.Op.type: type = fn_type @AdaptNotExtend.as.Destroy.impl.Op [concrete]
@@ -323,7 +323,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Adapted [concrete = constants.%Adapted]
 // CHECK:STDOUT:   impl_decl @Adapted.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Adapted.as.Destroy.impl.%Adapted.as.Destroy.impl.Op.decl), @Adapted.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d23]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.17c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -338,7 +338,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptNotExtend [concrete = constants.%AdaptNotExtend]
 // CHECK:STDOUT:   impl_decl @AdaptNotExtend.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptNotExtend.as.Destroy.impl.%AdaptNotExtend.as.Destroy.impl.Op.decl), @AdaptNotExtend.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f9b]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.04b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/adapter/adapt_copy.carbon b/toolchain/check/testdata/class/adapter/adapt_copy.carbon
index 2ce2431017ea..da3466579501 100644
--- a/toolchain/check/testdata/class/adapter/adapt_copy.carbon
+++ b/toolchain/check/testdata/class/adapter/adapt_copy.carbon
@@ -137,7 +137,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9b5: <witness> = impl_witness @AdaptCopyable.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.eaa: <witness> = impl_witness @AdaptCopyable.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4c1: type = ptr_type %AdaptCopyable [concrete]
 // CHECK:STDOUT:   %pattern_type.2d8: type = pattern_type %ptr.4c1 [concrete]
 // CHECK:STDOUT:   %AdaptCopyable.as.Destroy.impl.Op.type: type = fn_type @AdaptCopyable.as.Destroy.impl.Op [concrete]
@@ -154,9 +154,9 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %InTuple.type: type = fn_type @InTuple [concrete]
 // CHECK:STDOUT:   %InTuple: %InTuple.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c30: type = ptr_type %tuple.type.2a3 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f33: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.2a3) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f7d: %T.as.Destroy.impl.Op.type.f33 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.f7d, @T.as.Destroy.impl.Op(%tuple.type.2a3) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.cb6: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.2a3) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.9b5: %T.as.Destroy.impl.Op.type.cb6 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.9b5, @T.as.Destroy.impl.Op(%tuple.type.2a3) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -242,7 +242,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptCopyable [concrete = constants.%AdaptCopyable]
 // CHECK:STDOUT:   impl_decl @AdaptCopyable.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptCopyable.as.Destroy.impl.%AdaptCopyable.as.Destroy.impl.Op.decl), @AdaptCopyable.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9b5]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.eaa]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%i32.builtin [concrete = constants.%complete_type.f8a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -307,8 +307,8 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %.loc17_10.4: init %u32 = initialize_from %.loc17_10.3 to %tuple.elem1.loc17_10.2
 // CHECK:STDOUT:   %.loc17_10.5: init %tuple.type.2a3 = tuple_init (%.loc17_10.2, %.loc17_10.4) to %return
 // CHECK:STDOUT:   %.loc17_11: init %tuple.type.2a3 = converted %d.ref, %.loc17_10.5
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.f7d
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f7d, @T.as.Destroy.impl.Op(constants.%tuple.type.2a3) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.9b5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.9b5, @T.as.Destroy.impl.Op(constants.%tuple.type.2a3) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %d.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c30 = addr_of %d.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -328,7 +328,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %tuple.type.d07: type = tuple_type (%i32, %i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.116: <witness> = impl_witness @AdaptTuple.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.1c6: <witness> = impl_witness @AdaptTuple.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.ca3: type = ptr_type %AdaptTuple [concrete]
 // CHECK:STDOUT:   %pattern_type.0d9: type = pattern_type %ptr.ca3 [concrete]
 // CHECK:STDOUT:   %AdaptTuple.as.Destroy.impl.Op.type: type = fn_type @AdaptTuple.as.Destroy.impl.Op [concrete]
@@ -344,10 +344,10 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %pattern_type.c9e: type = pattern_type %tuple.type.f69 [concrete]
 // CHECK:STDOUT:   %InTuple.type: type = fn_type @InTuple [concrete]
 // CHECK:STDOUT:   %InTuple: %InTuple.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.390: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.f69) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d9f: %T.as.Destroy.impl.Op.type.390 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.b65: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.f69) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.5e0: %T.as.Destroy.impl.Op.type.b65 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.ed5: type = ptr_type %tuple.type.f69 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d9f, @T.as.Destroy.impl.Op(%tuple.type.f69) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.5e0, @T.as.Destroy.impl.Op(%tuple.type.f69) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -437,7 +437,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptTuple [concrete = constants.%AdaptTuple]
 // CHECK:STDOUT:   impl_decl @AdaptTuple.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptTuple.as.Destroy.impl.%AdaptTuple.as.Destroy.impl.Op.decl), @AdaptTuple.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.116]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.1c6]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%tuple.type.d07 [concrete = constants.%complete_type.65d]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -546,8 +546,8 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %.loc15_10.11: init %u32 = initialize_from %.loc15_10.10 to %tuple.elem1.loc15_10.4
 // CHECK:STDOUT:   %.loc15_10.12: init %tuple.type.f69 = tuple_init (%.loc15_10.9, %.loc15_10.11) to %return
 // CHECK:STDOUT:   %.loc15_11: init %tuple.type.f69 = converted %d.ref, %.loc15_10.12
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.d9f
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d9f, @T.as.Destroy.impl.Op(constants.%tuple.type.f69) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.5e0
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.5e0, @T.as.Destroy.impl.Op(constants.%tuple.type.f69) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %d.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.ed5 = addr_of %d.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -560,7 +560,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Noncopyable: type = class_type @Noncopyable [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.004: <witness> = impl_witness @Noncopyable.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cdb: <witness> = impl_witness @Noncopyable.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6f4: type = ptr_type %Noncopyable [concrete]
 // CHECK:STDOUT:   %pattern_type.e38: type = pattern_type %ptr.6f4 [concrete]
 // CHECK:STDOUT:   %Noncopyable.as.Destroy.impl.Op.type: type = fn_type @Noncopyable.as.Destroy.impl.Op [concrete]
@@ -569,7 +569,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %AdaptNoncopyable: type = class_type @AdaptNoncopyable [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d88: <witness> = impl_witness @AdaptNoncopyable.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.34f: <witness> = impl_witness @AdaptNoncopyable.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.ed9: type = ptr_type %AdaptNoncopyable [concrete]
 // CHECK:STDOUT:   %pattern_type.ea1: type = pattern_type %ptr.ed9 [concrete]
 // CHECK:STDOUT:   %AdaptNoncopyable.as.Destroy.impl.Op.type: type = fn_type @AdaptNoncopyable.as.Destroy.impl.Op [concrete]
@@ -649,7 +649,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Noncopyable [concrete = constants.%Noncopyable]
 // CHECK:STDOUT:   impl_decl @Noncopyable.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Noncopyable.as.Destroy.impl.%Noncopyable.as.Destroy.impl.Op.decl), @Noncopyable.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.004]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cdb]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -663,7 +663,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptNoncopyable [concrete = constants.%AdaptNoncopyable]
 // CHECK:STDOUT:   impl_decl @AdaptNoncopyable.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptNoncopyable.as.Destroy.impl.%AdaptNoncopyable.as.Destroy.impl.Op.decl), @AdaptNoncopyable.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d88]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.34f]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -701,7 +701,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Noncopyable: type = class_type @Noncopyable [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.004: <witness> = impl_witness @Noncopyable.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cdb: <witness> = impl_witness @Noncopyable.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6f4: type = ptr_type %Noncopyable [concrete]
 // CHECK:STDOUT:   %pattern_type.e38: type = pattern_type %ptr.6f4 [concrete]
 // CHECK:STDOUT:   %Noncopyable.as.Destroy.impl.Op.type: type = fn_type @Noncopyable.as.Destroy.impl.Op [concrete]
@@ -716,7 +716,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %tuple.type.ff9: type = tuple_type (type, type, type) [concrete]
 // CHECK:STDOUT:   %tuple.type.c9a: type = tuple_type (%i32, %Noncopyable, %i32) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d3e: <witness> = impl_witness @AdaptNoncopyableIndirect.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.502: <witness> = impl_witness @AdaptNoncopyableIndirect.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.921: type = ptr_type %AdaptNoncopyableIndirect [concrete]
 // CHECK:STDOUT:   %pattern_type.969: type = pattern_type %ptr.921 [concrete]
 // CHECK:STDOUT:   %AdaptNoncopyableIndirect.as.Destroy.impl.Op.type: type = fn_type @AdaptNoncopyableIndirect.as.Destroy.impl.Op [concrete]
@@ -799,7 +799,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Noncopyable [concrete = constants.%Noncopyable]
 // CHECK:STDOUT:   impl_decl @Noncopyable.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Noncopyable.as.Destroy.impl.%Noncopyable.as.Destroy.impl.Op.decl), @Noncopyable.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.004]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cdb]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -819,7 +819,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptNoncopyableIndirect [concrete = constants.%AdaptNoncopyableIndirect]
 // CHECK:STDOUT:   impl_decl @AdaptNoncopyableIndirect.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptNoncopyableIndirect.as.Destroy.impl.%AdaptNoncopyableIndirect.as.Destroy.impl.Op.decl), @AdaptNoncopyableIndirect.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d3e]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.502]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%tuple.type.c9a [concrete = constants.%complete_type.201]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -876,7 +876,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %struct_type.e.f: type = struct_type {.e: %i32, .f: %i32} [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.77a: <witness> = impl_witness @AdaptStruct.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.12f: <witness> = impl_witness @AdaptStruct.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e10: type = ptr_type %AdaptStruct [concrete]
 // CHECK:STDOUT:   %pattern_type.a0a: type = pattern_type %ptr.e10 [concrete]
 // CHECK:STDOUT:   %AdaptStruct.as.Destroy.impl.Op.type: type = fn_type @AdaptStruct.as.Destroy.impl.Op [concrete]
@@ -893,10 +893,10 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %pattern_type.31d: type = pattern_type %tuple.type.80b [concrete]
 // CHECK:STDOUT:   %InTuple.type: type = fn_type @InTuple [concrete]
 // CHECK:STDOUT:   %InTuple: %InTuple.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.628: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.80b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8ff: %T.as.Destroy.impl.Op.type.628 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.e9a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.80b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.3f2: %T.as.Destroy.impl.Op.type.e9a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.b09: type = ptr_type %tuple.type.80b [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.8ff, @T.as.Destroy.impl.Op(%tuple.type.80b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.3f2, @T.as.Destroy.impl.Op(%tuple.type.80b) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -985,7 +985,7 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptStruct [concrete = constants.%AdaptStruct]
 // CHECK:STDOUT:   impl_decl @AdaptStruct.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptStruct.as.Destroy.impl.%AdaptStruct.as.Destroy.impl.Op.decl), @AdaptStruct.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.77a]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.12f]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.e.f [concrete = constants.%complete_type.511]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1094,8 +1094,8 @@ fn InTuple(c: (AdaptStruct, u32)) -> (AdaptStruct, u32) {
 // CHECK:STDOUT:   %.loc15_10.15: init %u32 = initialize_from %.loc15_10.14 to %tuple.elem1.loc15_10.2
 // CHECK:STDOUT:   %.loc15_10.16: init %tuple.type.80b = tuple_init (%.loc15_10.13, %.loc15_10.15) to %return
 // CHECK:STDOUT:   %.loc15_11: init %tuple.type.80b = converted %d.ref, %.loc15_10.16
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.8ff
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8ff, @T.as.Destroy.impl.Op(constants.%tuple.type.80b) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.3f2
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.3f2, @T.as.Destroy.impl.Op(constants.%tuple.type.80b) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %d.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.b09 = addr_of %d.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/class/adapter/extend_adapt.carbon b/toolchain/check/testdata/class/adapter/extend_adapt.carbon
index bfa721cd9903..a15acae8c323 100644
--- a/toolchain/check/testdata/class/adapter/extend_adapt.carbon
+++ b/toolchain/check/testdata/class/adapter/extend_adapt.carbon
@@ -160,14 +160,14 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %SomeClass.AdapterMethod: %SomeClass.AdapterMethod.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ab1: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cf8: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.c8a: type = ptr_type %SomeClass [concrete]
 // CHECK:STDOUT:   %pattern_type.a47: type = pattern_type %ptr.c8a [concrete]
 // CHECK:STDOUT:   %SomeClass.as.Destroy.impl.Op.type: type = fn_type @SomeClass.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %SomeClass.as.Destroy.impl.Op: %SomeClass.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.a.b: type = struct_type {.a: %i32, .b: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.705: <witness> = complete_type_witness %struct_type.a.b [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.84c: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.f5a: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.b51: type = ptr_type %SomeClassAdapter [concrete]
 // CHECK:STDOUT:   %pattern_type.76d: type = pattern_type %ptr.b51 [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter.as.Destroy.impl.Op.type: type = fn_type @SomeClassAdapter.as.Destroy.impl.Op [concrete]
@@ -257,7 +257,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClassAdapter [concrete = constants.%SomeClassAdapter]
 // CHECK:STDOUT:   impl_decl @SomeClassAdapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClassAdapter.as.Destroy.impl.%SomeClassAdapter.as.Destroy.impl.Op.decl), @SomeClassAdapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.84c]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f5a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -288,7 +288,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClass [concrete = constants.%SomeClass]
 // CHECK:STDOUT:   impl_decl @SomeClass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClass.as.Destroy.impl.%SomeClass.as.Destroy.impl.Op.decl), @SomeClass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ab1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cf8]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -336,7 +336,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %SomeClass.F: %SomeClass.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ab1: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cf8: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.c8a: type = ptr_type %SomeClass [concrete]
 // CHECK:STDOUT:   %pattern_type.a47: type = pattern_type %ptr.c8a [concrete]
 // CHECK:STDOUT:   %SomeClass.as.Destroy.impl.Op.type: type = fn_type @SomeClass.as.Destroy.impl.Op [concrete]
@@ -344,7 +344,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter: type = class_type @SomeClassAdapter [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.84c: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.f5a: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.b51: type = ptr_type %SomeClassAdapter [concrete]
 // CHECK:STDOUT:   %pattern_type.76d: type = pattern_type %ptr.b51 [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter.as.Destroy.impl.Op.type: type = fn_type @SomeClassAdapter.as.Destroy.impl.Op [concrete]
@@ -431,7 +431,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClass [concrete = constants.%SomeClass]
 // CHECK:STDOUT:   impl_decl @SomeClass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClass.as.Destroy.impl.%SomeClass.as.Destroy.impl.Op.decl), @SomeClass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ab1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cf8]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -446,7 +446,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClassAdapter [concrete = constants.%SomeClassAdapter]
 // CHECK:STDOUT:   impl_decl @SomeClassAdapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClassAdapter.as.Destroy.impl.%SomeClassAdapter.as.Destroy.impl.Op.decl), @SomeClassAdapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.84c]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f5a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -484,7 +484,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %SomeClass.elem: type = unbound_element_type %SomeClass, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ab1: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cf8: <witness> = impl_witness @SomeClass.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.c8a: type = ptr_type %SomeClass [concrete]
 // CHECK:STDOUT:   %pattern_type.a47: type = pattern_type %ptr.c8a [concrete]
 // CHECK:STDOUT:   %SomeClass.as.Destroy.impl.Op.type: type = fn_type @SomeClass.as.Destroy.impl.Op [concrete]
@@ -492,7 +492,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %struct_type.a.b: type = struct_type {.a: %i32, .b: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.705: <witness> = complete_type_witness %struct_type.a.b [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter: type = class_type @SomeClassAdapter [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.84c: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.f5a: <witness> = impl_witness @SomeClassAdapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.b51: type = ptr_type %SomeClassAdapter [concrete]
 // CHECK:STDOUT:   %pattern_type.76d: type = pattern_type %ptr.b51 [concrete]
 // CHECK:STDOUT:   %SomeClassAdapter.as.Destroy.impl.Op.type: type = fn_type @SomeClassAdapter.as.Destroy.impl.Op [concrete]
@@ -586,7 +586,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClass [concrete = constants.%SomeClass]
 // CHECK:STDOUT:   impl_decl @SomeClass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClass.as.Destroy.impl.%SomeClass.as.Destroy.impl.Op.decl), @SomeClass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ab1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cf8]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -602,7 +602,7 @@ fn F(a: IntAdapter) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SomeClassAdapter [concrete = constants.%SomeClassAdapter]
 // CHECK:STDOUT:   impl_decl @SomeClassAdapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SomeClassAdapter.as.Destroy.impl.%SomeClassAdapter.as.Destroy.impl.Op.decl), @SomeClassAdapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.84c]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f5a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/adapter/fail_adapt_with_subobjects.carbon b/toolchain/check/testdata/class/adapter/fail_adapt_with_subobjects.carbon
index 929979894bdb..1fa4108108ed 100644
--- a/toolchain/check/testdata/class/adapter/fail_adapt_with_subobjects.carbon
+++ b/toolchain/check/testdata/class/adapter/fail_adapt_with_subobjects.carbon
@@ -85,7 +85,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -98,7 +98,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %AdaptWithBase.elem: type = unbound_element_type %AdaptWithBase, %Base [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8b8: <witness> = impl_witness @AdaptWithBase.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cad: <witness> = impl_witness @AdaptWithBase.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.52c: type = ptr_type %AdaptWithBase [concrete]
 // CHECK:STDOUT:   %pattern_type.d4d: type = pattern_type %ptr.52c [concrete]
 // CHECK:STDOUT:   %AdaptWithBase.as.Destroy.impl.Op.type: type = fn_type @AdaptWithBase.as.Destroy.impl.Op [concrete]
@@ -163,7 +163,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -180,7 +180,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptWithBase [concrete = constants.%AdaptWithBase]
 // CHECK:STDOUT:   impl_decl @AdaptWithBase.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptWithBase.as.Destroy.impl.%AdaptWithBase.as.Destroy.impl.Op.decl), @AdaptWithBase.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8b8]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cad]
 // CHECK:STDOUT:   complete_type_witness = <error>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -205,14 +205,14 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %AdaptWithField.elem: type = unbound_element_type %AdaptWithField, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.333: <witness> = impl_witness @AdaptWithField.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.46a: <witness> = impl_witness @AdaptWithField.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.849: type = ptr_type %AdaptWithField [concrete]
 // CHECK:STDOUT:   %pattern_type.55a: type = pattern_type %ptr.849 [concrete]
 // CHECK:STDOUT:   %AdaptWithField.as.Destroy.impl.Op.type: type = fn_type @AdaptWithField.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %AdaptWithField.as.Destroy.impl.Op: %AdaptWithField.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %AdaptWithFields: type = class_type @AdaptWithFields [concrete]
 // CHECK:STDOUT:   %AdaptWithFields.elem: type = unbound_element_type %AdaptWithFields, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8f2: <witness> = impl_witness @AdaptWithFields.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.eea: <witness> = impl_witness @AdaptWithFields.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.521: type = ptr_type %AdaptWithFields [concrete]
 // CHECK:STDOUT:   %pattern_type.1a9: type = pattern_type %ptr.521 [concrete]
 // CHECK:STDOUT:   %AdaptWithFields.as.Destroy.impl.Op.type: type = fn_type @AdaptWithFields.as.Destroy.impl.Op [concrete]
@@ -283,7 +283,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptWithField [concrete = constants.%AdaptWithField]
 // CHECK:STDOUT:   impl_decl @AdaptWithField.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptWithField.as.Destroy.impl.%AdaptWithField.as.Destroy.impl.Op.decl), @AdaptWithField.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.333]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.46a]
 // CHECK:STDOUT:   complete_type_witness = <error>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -307,7 +307,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptWithFields [concrete = constants.%AdaptWithFields]
 // CHECK:STDOUT:   impl_decl @AdaptWithFields.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptWithFields.as.Destroy.impl.%AdaptWithFields.as.Destroy.impl.Op.decl), @AdaptWithFields.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8f2]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.eea]
 // CHECK:STDOUT:   complete_type_witness = <error>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -327,7 +327,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -341,7 +341,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %AdaptWithBaseAndFields.elem.ddf: type = unbound_element_type %AdaptWithBaseAndFields, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.034: <witness> = impl_witness @AdaptWithBaseAndFields.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.00a: <witness> = impl_witness @AdaptWithBaseAndFields.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.cbb: type = ptr_type %AdaptWithBaseAndFields [concrete]
 // CHECK:STDOUT:   %pattern_type.926: type = pattern_type %ptr.cbb [concrete]
 // CHECK:STDOUT:   %AdaptWithBaseAndFields.as.Destroy.impl.Op.type: type = fn_type @AdaptWithBaseAndFields.as.Destroy.impl.Op [concrete]
@@ -406,7 +406,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -426,7 +426,7 @@ class AdaptWithBaseAndFields {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptWithBaseAndFields [concrete = constants.%AdaptWithBaseAndFields]
 // CHECK:STDOUT:   impl_decl @AdaptWithBaseAndFields.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptWithBaseAndFields.as.Destroy.impl.%AdaptWithBaseAndFields.as.Destroy.impl.Op.decl), @AdaptWithBaseAndFields.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.034]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.00a]
 // CHECK:STDOUT:   complete_type_witness = <error>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
diff --git a/toolchain/check/testdata/class/adapter/init_adapt.carbon b/toolchain/check/testdata/class/adapter/init_adapt.carbon
index 8916f698040a..e187ac6ba507 100644
--- a/toolchain/check/testdata/class/adapter/init_adapt.carbon
+++ b/toolchain/check/testdata/class/adapter/init_adapt.carbon
@@ -107,7 +107,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -115,7 +115,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %struct_type.a.b.501: type = struct_type {.a: %i32, .b: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.705: <witness> = complete_type_witness %struct_type.a.b.501 [concrete]
 // CHECK:STDOUT:   %AdaptC: type = class_type @AdaptC [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d92: <witness> = impl_witness @AdaptC.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e1: <witness> = impl_witness @AdaptC.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.b20: type = ptr_type %AdaptC [concrete]
 // CHECK:STDOUT:   %pattern_type.d7e: type = pattern_type %ptr.b20 [concrete]
 // CHECK:STDOUT:   %AdaptC.as.Destroy.impl.Op.type: type = fn_type @AdaptC.as.Destroy.impl.Op [concrete]
@@ -126,22 +126,22 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %pattern_type.a1a: type = pattern_type %AdaptC [concrete]
@@ -162,8 +162,8 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -186,19 +186,19 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:     %a.patt: %pattern_type.c48 = binding_pattern a [concrete]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %C.ref.loc13: type = name_ref C, %C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   %impl.elem0.loc13_27.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_27.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0.loc13_27.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc13_27.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_27.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0.loc13_27.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc13_27.1: <specific function> = specific_function %impl.elem0.loc13_27.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_27.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn.loc13_27.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc13_27.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn.loc13_27.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.1: init %i32 = call %bound_method.loc13_27.2(@__global_init.%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc13_27.1: init %i32 = converted @__global_init.%int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc13_27.2: ref %C = temporary_storage
 // CHECK:STDOUT:   %.loc13_27.3: ref %i32 = class_element_access %.loc13_27.2, element0
 // CHECK:STDOUT:   %.loc13_27.4: init %i32 = initialize_from %.loc13_27.1 to %.loc13_27.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc13_27.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_27.3: <bound method> = bound_method @__global_init.%int_2, %impl.elem0.loc13_27.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc13_27.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_27.3: <bound method> = bound_method @__global_init.%int_2, %impl.elem0.loc13_27.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc13_27.2: <specific function> = specific_function %impl.elem0.loc13_27.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_27.4: <bound method> = bound_method @__global_init.%int_2, %specific_fn.loc13_27.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc13_27.4: <bound method> = bound_method @__global_init.%int_2, %specific_fn.loc13_27.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.2: init %i32 = call %bound_method.loc13_27.4(@__global_init.%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc13_27.5: init %i32 = converted @__global_init.%int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc13_27.6: ref %i32 = class_element_access %.loc13_27.2, element1
@@ -292,7 +292,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -308,7 +308,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptC [concrete = constants.%AdaptC]
 // CHECK:STDOUT:   impl_decl @AdaptC.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptC.as.Destroy.impl.%AdaptC.as.Destroy.impl.Op.decl), @AdaptC.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d92]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e1]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -366,7 +366,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -374,7 +374,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %struct_type.a.b.501: type = struct_type {.a: %i32, .b: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.705: <witness> = complete_type_witness %struct_type.a.b.501 [concrete]
 // CHECK:STDOUT:   %AdaptC: type = class_type @AdaptC [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d92: <witness> = impl_witness @AdaptC.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e1: <witness> = impl_witness @AdaptC.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.b20: type = ptr_type %AdaptC [concrete]
 // CHECK:STDOUT:   %pattern_type.d7e: type = pattern_type %ptr.b20 [concrete]
 // CHECK:STDOUT:   %AdaptC.as.Destroy.impl.Op.type: type = fn_type @AdaptC.as.Destroy.impl.Op [concrete]
@@ -385,22 +385,22 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %pattern_type.a1a: type = pattern_type %AdaptC [concrete]
@@ -421,8 +421,8 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -445,19 +445,19 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:     %a.patt: %pattern_type.c48 = binding_pattern a [concrete]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %C.ref.loc13: type = name_ref C, %C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   %impl.elem0.loc13_27.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_27.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0.loc13_27.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc13_27.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_27.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0.loc13_27.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc13_27.1: <specific function> = specific_function %impl.elem0.loc13_27.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_27.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn.loc13_27.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc13_27.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn.loc13_27.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.1: init %i32 = call %bound_method.loc13_27.2(@__global_init.%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc13_27.1: init %i32 = converted @__global_init.%int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc13_27.2: ref %C = temporary_storage
 // CHECK:STDOUT:   %.loc13_27.3: ref %i32 = class_element_access %.loc13_27.2, element0
 // CHECK:STDOUT:   %.loc13_27.4: init %i32 = initialize_from %.loc13_27.1 to %.loc13_27.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc13_27.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_27.3: <bound method> = bound_method @__global_init.%int_2, %impl.elem0.loc13_27.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc13_27.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_27.3: <bound method> = bound_method @__global_init.%int_2, %impl.elem0.loc13_27.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc13_27.2: <specific function> = specific_function %impl.elem0.loc13_27.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_27.4: <bound method> = bound_method @__global_init.%int_2, %specific_fn.loc13_27.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc13_27.4: <bound method> = bound_method @__global_init.%int_2, %specific_fn.loc13_27.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.2: init %i32 = call %bound_method.loc13_27.4(@__global_init.%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc13_27.5: init %i32 = converted @__global_init.%int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_27.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc13_27.6: ref %i32 = class_element_access %.loc13_27.2, element1
@@ -553,7 +553,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -569,7 +569,7 @@ var e: C = MakeAdaptC();
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AdaptC [concrete = constants.%AdaptC]
 // CHECK:STDOUT:   impl_decl @AdaptC.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AdaptC.as.Destroy.impl.%AdaptC.as.Destroy.impl.Op.decl), @AdaptC.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d92]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e1]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/base.carbon b/toolchain/check/testdata/class/base.carbon
index 8971740dfc3f..ffcbf905893d 100644
--- a/toolchain/check/testdata/class/base.carbon
+++ b/toolchain/check/testdata/class/base.carbon
@@ -60,7 +60,7 @@ class Derived {
 // CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -70,7 +70,7 @@ class Derived {
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem.69e: type = unbound_element_type %Derived, %Base [concrete]
 // CHECK:STDOUT:   %Derived.elem.344: type = unbound_element_type %Derived, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -86,23 +86,23 @@ class Derived {
 // CHECK:STDOUT:   %struct_type.base.d.a20: type = struct_type {.base: %struct_type.b.a15, .d: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %Base.val: %Base = struct_value (%int_4.940) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.3bd: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.c8a: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_7.0b1: %i32 = int_value 7 [concrete]
 // CHECK:STDOUT:   %Derived.val: %Derived = struct_value (%Base.val, %int_7.0b1) [concrete]
 // CHECK:STDOUT:   %tuple.type.24b: type = tuple_type (type, type) [concrete]
@@ -123,8 +123,8 @@ class Derived {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -205,7 +205,7 @@ class Derived {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.b.0a3 [concrete = constants.%complete_type.ba8]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -223,7 +223,7 @@ class Derived {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.d.f8f [concrete = constants.%complete_type.da6]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -245,10 +245,10 @@ class Derived {
 // CHECK:STDOUT:   %.loc14_26.1: %struct_type.b.a15 = struct_literal (%int_4)
 // CHECK:STDOUT:   %int_7: Core.IntLiteral = int_value 7 [concrete = constants.%int_7.29f]
 // CHECK:STDOUT:   %.loc14_35.1: %struct_type.base.d.a20 = struct_literal (%.loc14_26.1, %int_7)
-// CHECK:STDOUT:   %impl.elem0.loc14_26: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_26.1: <bound method> = bound_method %int_4, %impl.elem0.loc14_26 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc14_26: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_26.1: <bound method> = bound_method %int_4, %impl.elem0.loc14_26 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc14_26: <specific function> = specific_function %impl.elem0.loc14_26, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_26.2: <bound method> = bound_method %int_4, %specific_fn.loc14_26 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc14_26.2: <bound method> = bound_method %int_4, %specific_fn.loc14_26 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_26: init %i32 = call %bound_method.loc14_26.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc14_26.2: init %i32 = converted %int_4, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_26 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc14_35.2: ref %Base = class_element_access %return, element0
@@ -256,10 +256,10 @@ class Derived {
 // CHECK:STDOUT:   %.loc14_26.4: init %i32 = initialize_from %.loc14_26.2 to %.loc14_26.3 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc14_26.5: init %Base = class_init (%.loc14_26.4), %.loc14_35.2 [concrete = constants.%Base.val]
 // CHECK:STDOUT:   %.loc14_35.3: init %Base = converted %.loc14_26.1, %.loc14_26.5 [concrete = constants.%Base.val]
-// CHECK:STDOUT:   %impl.elem0.loc14_35: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_35.1: <bound method> = bound_method %int_7, %impl.elem0.loc14_35 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208]
+// CHECK:STDOUT:   %impl.elem0.loc14_35: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_35.1: <bound method> = bound_method %int_7, %impl.elem0.loc14_35 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2]
 // CHECK:STDOUT:   %specific_fn.loc14_35: <specific function> = specific_function %impl.elem0.loc14_35, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_35.2: <bound method> = bound_method %int_7, %specific_fn.loc14_35 [concrete = constants.%bound_method.3bd]
+// CHECK:STDOUT:   %bound_method.loc14_35.2: <bound method> = bound_method %int_7, %specific_fn.loc14_35 [concrete = constants.%bound_method.c8a]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35: init %i32 = call %bound_method.loc14_35.2(%int_7) [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:   %.loc14_35.4: init %i32 = converted %int_7, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35 [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:   %.loc14_35.5: ref %i32 = class_element_access %return, element1
@@ -298,7 +298,7 @@ class Derived {
 // CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -311,7 +311,7 @@ class Derived {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -378,7 +378,7 @@ class Derived {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -394,7 +394,7 @@ class Derived {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.d [concrete = constants.%complete_type.860]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/base_field.carbon b/toolchain/check/testdata/class/base_field.carbon
index 103845163e57..6c0b1bf7b7a4 100644
--- a/toolchain/check/testdata/class/base_field.carbon
+++ b/toolchain/check/testdata/class/base_field.carbon
@@ -40,7 +40,7 @@ fn Access(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -50,7 +50,7 @@ fn Access(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem.69e: type = unbound_element_type %Derived, %Base [concrete]
 // CHECK:STDOUT:   %Derived.elem.344: type = unbound_element_type %Derived, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -149,7 +149,7 @@ fn Access(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.c [concrete = constants.%complete_type.ebc]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -172,7 +172,7 @@ fn Access(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.d.e.6a7 [concrete = constants.%complete_type.401]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/base_function_unqualified.carbon b/toolchain/check/testdata/class/base_function_unqualified.carbon
index a29023b41a9a..0b83b526cc05 100644
--- a/toolchain/check/testdata/class/base_function_unqualified.carbon
+++ b/toolchain/check/testdata/class/base_function_unqualified.carbon
@@ -36,7 +36,7 @@ fn Derived.H() {
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -49,7 +49,7 @@ fn Derived.H() {
 // CHECK:STDOUT:   %Derived.G: %Derived.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Derived.H.type: type = fn_type @Derived.H [concrete]
 // CHECK:STDOUT:   %Derived.H: %Derived.H.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -116,7 +116,7 @@ fn Derived.H() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -133,7 +133,7 @@ fn Derived.H() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/base_method.carbon b/toolchain/check/testdata/class/base_method.carbon
index 7891de31a052..76959b0bb6e5 100644
--- a/toolchain/check/testdata/class/base_method.carbon
+++ b/toolchain/check/testdata/class/base_method.carbon
@@ -46,7 +46,7 @@ fn Call(p: Derived*) {
 // CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F [concrete]
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.a: type = struct_type {.a: %i32} [concrete]
@@ -54,23 +54,23 @@ fn Call(p: Derived*) {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -92,8 +92,8 @@ fn Call(p: Derived*) {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -182,7 +182,7 @@ fn Call(p: Derived*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a [concrete = constants.%complete_type.fd7]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -198,7 +198,7 @@ fn Call(p: Derived*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.b1e [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -217,7 +217,7 @@ fn Call(p: Derived*) {
 // CHECK:STDOUT:   %a.ref: %Base.elem = name_ref a, @Base.%.loc16 [concrete = @Base.%.loc16]
 // CHECK:STDOUT:   %.loc22_10: ref %i32 = class_element_access %.loc22_4, element0
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc22_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc22_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/class/base_method_qualified.carbon b/toolchain/check/testdata/class/base_method_qualified.carbon
index 198d56d42c30..2ed2f28e72d2 100644
--- a/toolchain/check/testdata/class/base_method_qualified.carbon
+++ b/toolchain/check/testdata/class/base_method_qualified.carbon
@@ -60,7 +60,7 @@ fn PassDerivedToBaseIndirect(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Base.G: %Base.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -72,7 +72,7 @@ fn PassDerivedToBaseIndirect(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Derived.G.type: type = fn_type @Derived.G [concrete]
 // CHECK:STDOUT:   %Derived.G: %Derived.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -232,7 +232,7 @@ fn PassDerivedToBaseIndirect(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.b1e [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -277,7 +277,7 @@ fn PassDerivedToBaseIndirect(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/base_method_shadow.carbon b/toolchain/check/testdata/class/base_method_shadow.carbon
index 3fe63fffac39..c7c86e4d3eb7 100644
--- a/toolchain/check/testdata/class/base_method_shadow.carbon
+++ b/toolchain/check/testdata/class/base_method_shadow.carbon
@@ -48,7 +48,7 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.F: %A.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op: %A.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
@@ -59,7 +59,7 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.F.type: type = fn_type @B.F [concrete]
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.base.953: type = struct_type {.base: %A} [concrete]
@@ -70,14 +70,14 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.F.type: type = fn_type @C.F [concrete]
 // CHECK:STDOUT:   %C.F: %C.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.base.0ff: type = struct_type {.base: %B} [concrete]
 // CHECK:STDOUT:   %complete_type.98e: <witness> = complete_type_witness %struct_type.base.0ff [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %D.elem: type = unbound_element_type %D, %B [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -226,7 +226,7 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -253,7 +253,7 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.953 [concrete = constants.%complete_type.020]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -283,7 +283,7 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ff [concrete = constants.%complete_type.98e]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -301,7 +301,7 @@ fn Call(a: A*, b: B*, c: C*, d: D*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ff [concrete = constants.%complete_type.98e]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/basic.carbon b/toolchain/check/testdata/class/basic.carbon
index 2c5605e7e628..44e0e16e2407 100644
--- a/toolchain/check/testdata/class/basic.carbon
+++ b/toolchain/check/testdata/class/basic.carbon
@@ -46,7 +46,7 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -58,18 +58,18 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT: }
@@ -85,8 +85,8 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -184,7 +184,7 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.k [concrete = constants.%complete_type.954]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -214,7 +214,7 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %Class.ref: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
 // CHECK:STDOUT:   %F.ref: %Class.F.type = name_ref F, @Class.%Class.F.decl [concrete = constants.%Class.F]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc30_18.1: <bound method> = bound_method %int_4, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc30_18.2: <bound method> = bound_method %int_4, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/class/compound_field.carbon b/toolchain/check/testdata/class/compound_field.carbon
index d362f27b487c..f9387cfbd731 100644
--- a/toolchain/check/testdata/class/compound_field.carbon
+++ b/toolchain/check/testdata/class/compound_field.carbon
@@ -52,7 +52,7 @@ fn AccessBaseIndirect(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -62,7 +62,7 @@ fn AccessBaseIndirect(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem.69e: type = unbound_element_type %Derived, %Base [concrete]
 // CHECK:STDOUT:   %Derived.elem.344: type = unbound_element_type %Derived, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -218,7 +218,7 @@ fn AccessBaseIndirect(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.c [concrete = constants.%complete_type.ebc]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -241,7 +241,7 @@ fn AccessBaseIndirect(p: Derived*) -> i32* {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.d.e.6a7 [concrete = constants.%complete_type.401]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/derived_to_base.carbon b/toolchain/check/testdata/class/derived_to_base.carbon
index 3010eb17ca63..70da0062ddf0 100644
--- a/toolchain/check/testdata/class/derived_to_base.carbon
+++ b/toolchain/check/testdata/class/derived_to_base.carbon
@@ -153,34 +153,34 @@ fn PassConstB(p: const B) {
 // CHECK:STDOUT:   %struct_type.base.b.bf0: type = struct_type {.base: %struct_type.a.a6c, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct_type.base.c.136: type = struct_type {.base: %struct_type.base.b.bf0, .c: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %A.val: %A = struct_value (%int_1.5d2) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %B.val: %B = struct_value (%A.val, %int_2.ef8) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value (%B.val, %int_3.822) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -333,10 +333,10 @@ fn PassConstB(p: const B) {
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc32_57.1: %struct_type.base.c.136 = struct_literal (%.loc32_48.1, %int_3)
 // CHECK:STDOUT:   %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   %impl.elem0.loc32_39: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc32_39.1: <bound method> = bound_method %int_1, %impl.elem0.loc32_39 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc32_39: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc32_39.1: <bound method> = bound_method %int_1, %impl.elem0.loc32_39 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc32_39: <specific function> = specific_function %impl.elem0.loc32_39, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc32_39.2: <bound method> = bound_method %int_1, %specific_fn.loc32_39 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc32_39.2: <bound method> = bound_method %int_1, %specific_fn.loc32_39 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32_39: init %i32 = call %bound_method.loc32_39.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc32_39.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32_39 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc32_57.2: ref %C = temporary_storage
@@ -346,20 +346,20 @@ fn PassConstB(p: const B) {
 // CHECK:STDOUT:   %.loc32_39.4: init %i32 = initialize_from %.loc32_39.2 to %.loc32_39.3 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc32_39.5: init %A = class_init (%.loc32_39.4), %.loc32_48.2 [concrete = constants.%A.val]
 // CHECK:STDOUT:   %.loc32_48.3: init %A = converted %.loc32_39.1, %.loc32_39.5 [concrete = constants.%A.val]
-// CHECK:STDOUT:   %impl.elem0.loc32_48: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc32_48.1: <bound method> = bound_method %int_2, %impl.elem0.loc32_48 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc32_48: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc32_48.1: <bound method> = bound_method %int_2, %impl.elem0.loc32_48 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc32_48: <specific function> = specific_function %impl.elem0.loc32_48, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc32_48.2: <bound method> = bound_method %int_2, %specific_fn.loc32_48 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc32_48.2: <bound method> = bound_method %int_2, %specific_fn.loc32_48 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32_48: init %i32 = call %bound_method.loc32_48.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc32_48.4: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32_48 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc32_48.5: ref %i32 = class_element_access %.loc32_57.3, element1
 // CHECK:STDOUT:   %.loc32_48.6: init %i32 = initialize_from %.loc32_48.4 to %.loc32_48.5 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc32_48.7: init %B = class_init (%.loc32_48.3, %.loc32_48.6), %.loc32_57.3 [concrete = constants.%B.val]
 // CHECK:STDOUT:   %.loc32_57.4: init %B = converted %.loc32_48.1, %.loc32_48.7 [concrete = constants.%B.val]
-// CHECK:STDOUT:   %impl.elem0.loc32_57: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc32_57.1: <bound method> = bound_method %int_3, %impl.elem0.loc32_57 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc32_57: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc32_57.1: <bound method> = bound_method %int_3, %impl.elem0.loc32_57 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc32_57: <specific function> = specific_function %impl.elem0.loc32_57, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc32_57.2: <bound method> = bound_method %int_3, %specific_fn.loc32_57 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc32_57.2: <bound method> = bound_method %int_3, %specific_fn.loc32_57 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32_57: init %i32 = call %bound_method.loc32_57.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc32_57.5: init %i32 = converted %int_3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32_57 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc32_57.6: ref %i32 = class_element_access %.loc32_57.2, element1
diff --git a/toolchain/check/testdata/class/destroy_calls.carbon b/toolchain/check/testdata/class/destroy_calls.carbon
index 0a3ecb34109a..c6071f5953bf 100644
--- a/toolchain/check/testdata/class/destroy_calls.carbon
+++ b/toolchain/check/testdata/class/destroy_calls.carbon
@@ -357,8 +357,8 @@ fn G() { F({}); }
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %D.113: type = class_type @D, @D(%C) [concrete]
 // CHECK:STDOUT:   %pattern_type.c95: type = pattern_type %D.113 [concrete]
-// CHECK:STDOUT:   %D.as.Destroy.impl.Op.type.602: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %D.as.Destroy.impl.Op.218: %D.as.Destroy.impl.Op.type.602 = struct_value () [concrete]
+// CHECK:STDOUT:   %D.as.Destroy.impl.Op.type.8e8: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %D.as.Destroy.impl.Op.f80: %D.as.Destroy.impl.Op.type.8e8 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.22d: type = ptr_type %D.113 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -382,7 +382,7 @@ fn G() { F({}); }
 // CHECK:STDOUT:     %D: type = class_type @D, @D(constants.%C) [concrete = constants.%D.113]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %a: ref %D.113 = bind_name a, %a.var
-// CHECK:STDOUT:   %D.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%D.as.Destroy.impl.Op.218
+// CHECK:STDOUT:   %D.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%D.as.Destroy.impl.Op.f80
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %D.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.22d = addr_of %a.var
@@ -401,29 +401,29 @@ fn G() { F({}); }
 // CHECK:STDOUT:   %C.f2e: type = class_type @C, @C(%T.8b3d5d.1) [template]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T.8b3d5d.1) [template]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T.8b3d5d.1) [template]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [template]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.7a1: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T.8b3d5d.1) [template]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.d65: %C.as.Destroy.impl.Op.type.7a1 = struct_value () [template]
-// CHECK:STDOUT:   %Destroy.facet.d7f: %Destroy.type = facet_value %C.f2e, (%Destroy.impl_witness.a08) [template]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.0fe: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T.8b3d5d.1) [template]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.649: %C.as.Destroy.impl.Op.type.0fe = struct_value () [template]
+// CHECK:STDOUT:   %Destroy.facet.7e3: %Destroy.type = facet_value %C.f2e, (%Destroy.impl_witness.299) [template]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.389: <witness> = require_complete_type %C.f2e [template]
 // CHECK:STDOUT:   %pattern_type.e5e: type = pattern_type %C.f2e [template]
-// CHECK:STDOUT:   %.a2f: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.d7f [template]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.67e: <specific function> = specific_function %C.as.Destroy.impl.Op.d65, @C.as.Destroy.impl.Op(%T.8b3d5d.1) [template]
+// CHECK:STDOUT:   %.8bb: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.7e3 [template]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.889: <specific function> = specific_function %C.as.Destroy.impl.Op.649, @C.as.Destroy.impl.Op(%T.8b3d5d.1) [template]
 // CHECK:STDOUT:   %require_complete.448: <witness> = require_complete_type %ptr.7d2 [template]
 // CHECK:STDOUT:   %C.7a7: type = class_type @C, @C(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %pattern_type.99a: type = pattern_type %C.7a7 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b34: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %Destroy.facet.5e7: %Destroy.type = facet_value %C.7a7, (%Destroy.impl_witness.b34) [concrete]
-// CHECK:STDOUT:   %.ec8: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.5e7 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.f57: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.a9a: %C.as.Destroy.impl.Op.type.f57 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.e35: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %Destroy.facet.347: %Destroy.type = facet_value %C.7a7, (%Destroy.impl_witness.e35) [concrete]
+// CHECK:STDOUT:   %.950: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.347 [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.7cd: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.d21: %C.as.Destroy.impl.Op.type.7cd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.308: type = ptr_type %C.7a7 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.d47: <specific function> = specific_function %C.as.Destroy.impl.Op.a9a, @C.as.Destroy.impl.Op(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.3ff: <specific function> = specific_function %C.as.Destroy.impl.Op.d21, @C.as.Destroy.impl.Op(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %complete_type.903: <witness> = complete_type_witness %ptr.308 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -446,12 +446,12 @@ fn G() { F({}); }
 // CHECK:STDOUT:   %C.loc7_13.2: type = class_type @C, @C(%T.loc6_15.1) [template = %C.loc7_13.2 (constants.%C.f2e)]
 // CHECK:STDOUT:   %require_complete.loc7_13: <witness> = require_complete_type %C.loc7_13.2 [template = %require_complete.loc7_13 (constants.%require_complete.389)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %C.loc7_13.2 [template = %pattern_type (constants.%pattern_type.e5e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T.loc6_15.1) [template = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %C.loc7_13.2, (%Destroy.impl_witness) [template = %Destroy.facet (constants.%Destroy.facet.d7f)]
-// CHECK:STDOUT:   %.loc7_3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [template = %.loc7_3 (constants.%.a2f)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T.loc6_15.1) [template = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.7a1)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @F.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.7a1) = struct_value () [template = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.d65)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op, @C.as.Destroy.impl.Op(%T.loc6_15.1) [template = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn.67e)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T.loc6_15.1) [template = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %C.loc7_13.2, (%Destroy.impl_witness) [template = %Destroy.facet (constants.%Destroy.facet.7e3)]
+// CHECK:STDOUT:   %.loc7_3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [template = %.loc7_3 (constants.%.8bb)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T.loc6_15.1) [template = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.0fe)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @F.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.0fe) = struct_value () [template = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.649)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op, @C.as.Destroy.impl.Op(%T.loc6_15.1) [template = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn.889)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %C.loc7_13.2 [template = %ptr (constants.%ptr.7d2)]
 // CHECK:STDOUT:   %require_complete.loc7_3: <witness> = require_complete_type %ptr [template = %require_complete.loc7_3 (constants.%require_complete.448)]
 // CHECK:STDOUT:
@@ -468,9 +468,9 @@ fn G() { F({}); }
 // CHECK:STDOUT:       %C.loc7_13.1: type = class_type @C, @C(constants.%T.8b3d5d.1) [template = %C.loc7_13.2 (constants.%C.f2e)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %v: ref @F.%C.loc7_13.2 (%C.f2e) = bind_name v, %v.var
-// CHECK:STDOUT:     %impl.elem0: @F.%.loc7_3 (%.a2f) = impl_witness_access constants.%Destroy.impl_witness.a08, element0 [template = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.d65)]
+// CHECK:STDOUT:     %impl.elem0: @F.%.loc7_3 (%.8bb) = impl_witness_access constants.%Destroy.impl_witness.299, element0 [template = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.649)]
 // CHECK:STDOUT:     %bound_method.loc7_3.1: <bound method> = bound_method %v.var, %impl.elem0
-// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.Destroy.impl.Op(constants.%T.8b3d5d.1) [template = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn.67e)]
+// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.Destroy.impl.Op(constants.%T.8b3d5d.1) [template = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn.889)]
 // CHECK:STDOUT:     %bound_method.loc7_3.2: <bound method> = bound_method %v.var, %specific_fn
 // CHECK:STDOUT:     %addr: @F.%ptr (%ptr.7d2) = addr_of %v.var
 // CHECK:STDOUT:     %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc7_3.2(%addr)
@@ -489,12 +489,12 @@ fn G() { F({}); }
 // CHECK:STDOUT:   %C.loc7_13.2 => constants.%C.7a7
 // CHECK:STDOUT:   %require_complete.loc7_13 => constants.%complete_type.357
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.99a
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.b34
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.5e7
-// CHECK:STDOUT:   %.loc7_3 => constants.%.ec8
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.f57
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.a9a
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn => constants.%C.as.Destroy.impl.Op.specific_fn.d47
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e35
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.347
+// CHECK:STDOUT:   %.loc7_3 => constants.%.950
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.7cd
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.d21
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn => constants.%C.as.Destroy.impl.Op.specific_fn.3ff
 // CHECK:STDOUT:   %ptr => constants.%ptr.308
 // CHECK:STDOUT:   %require_complete.loc7_3 => constants.%complete_type.903
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/class/fail_abstract.carbon b/toolchain/check/testdata/class/fail_abstract.carbon
index c2383d1ed941..b4a5f7138a44 100644
--- a/toolchain/check/testdata/class/fail_abstract.carbon
+++ b/toolchain/check/testdata/class/fail_abstract.carbon
@@ -199,7 +199,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2c5: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Abstract [concrete]
 // CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
@@ -207,7 +207,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Contains: type = class_type @Contains [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.6a6: <witness> = impl_witness @Contains.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.f0e: <witness> = impl_witness @Contains.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.216: type = ptr_type %Contains [concrete]
 // CHECK:STDOUT:   %pattern_type.cce: type = pattern_type %ptr.216 [concrete]
 // CHECK:STDOUT:   %Contains.as.Destroy.impl.Op.type: type = fn_type @Contains.as.Destroy.impl.Op [concrete]
@@ -270,7 +270,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
 // CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2c5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -284,7 +284,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Contains [concrete = constants.%Contains]
 // CHECK:STDOUT:   impl_decl @Contains.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Contains.as.Destroy.impl.%Contains.as.Destroy.impl.Op.decl), @Contains.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6a6]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f0e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness <error> [concrete = <error>]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -469,7 +469,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2c5: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Abstract [concrete]
 // CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
@@ -477,7 +477,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Adapter: type = class_type @Adapter [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.223: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ee3: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.0f9: type = ptr_type %Adapter [concrete]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %ptr.0f9 [concrete]
 // CHECK:STDOUT:   %Adapter.as.Destroy.impl.Op.type: type = fn_type @Adapter.as.Destroy.impl.Op [concrete]
@@ -540,7 +540,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
 // CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2c5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -554,7 +554,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Adapter [concrete = constants.%Adapter]
 // CHECK:STDOUT:   impl_decl @Adapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Adapter.as.Destroy.impl.%Adapter.as.Destroy.impl.Op.decl), @Adapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.223]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ee3]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness <error> [concrete = <error>]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -670,7 +670,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2c5: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4042: type = ptr_type %Abstract [concrete]
 // CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.4042 [concrete]
 // CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
@@ -680,7 +680,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem.513: type = unbound_element_type %Derived, %Abstract [concrete]
 // CHECK:STDOUT:   %Derived.elem.ad9: type = unbound_element_type %Derived, %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404f: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404f [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -758,7 +758,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
 // CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2c5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -775,7 +775,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.d.c06 [concrete = constants.%complete_type.b4a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -805,7 +805,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2c5: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4042: type = ptr_type %Abstract [concrete]
 // CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.4042 [concrete]
 // CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
@@ -815,7 +815,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem.513: type = unbound_element_type %Derived, %Abstract [concrete]
 // CHECK:STDOUT:   %Derived.elem.ad9: type = unbound_element_type %Derived, %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404f: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404f [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -897,7 +897,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
 // CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2c5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -914,7 +914,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.d [concrete = constants.%complete_type.b4a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -944,7 +944,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Abstract.elem: type = unbound_element_type %Abstract, %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2c5: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4042: type = ptr_type %Abstract [concrete]
 // CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.4042 [concrete]
 // CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
@@ -954,7 +954,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Derived: type = class_type @Derived [concrete]
 // CHECK:STDOUT:   %Derived.elem.513: type = unbound_element_type %Derived, %Abstract [concrete]
 // CHECK:STDOUT:   %Derived.elem.ad9: type = unbound_element_type %Derived, %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404f: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404f [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -1041,7 +1041,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
 // CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2c5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.225 [concrete = constants.%complete_type.8c6]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1059,7 +1059,7 @@ fn CallReturnAbstract() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.d.c06 [concrete = constants.%complete_type.b4a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/fail_abstract_in_tuple.carbon b/toolchain/check/testdata/class/fail_abstract_in_tuple.carbon
index cb9935dd2f33..c76c7418e470 100644
--- a/toolchain/check/testdata/class/fail_abstract_in_tuple.carbon
+++ b/toolchain/check/testdata/class/fail_abstract_in_tuple.carbon
@@ -131,7 +131,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Abstract1: type = class_type @Abstract1 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.188: <witness> = impl_witness @Abstract1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.4df: <witness> = impl_witness @Abstract1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.cfc: type = ptr_type %Abstract1 [concrete]
 // CHECK:STDOUT:   %pattern_type.15b: type = pattern_type %ptr.cfc [concrete]
 // CHECK:STDOUT:   %Abstract1.as.Destroy.impl.Op.type: type = fn_type @Abstract1.as.Destroy.impl.Op [concrete]
@@ -141,7 +141,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Contains: type = class_type @Contains [concrete]
 // CHECK:STDOUT:   %tuple.type.85c: type = tuple_type (type) [concrete]
 // CHECK:STDOUT:   %tuple.type.f19: type = tuple_type (%Abstract1) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.6a6: <witness> = impl_witness @Contains.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.f0e: <witness> = impl_witness @Contains.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.216: type = ptr_type %Contains [concrete]
 // CHECK:STDOUT:   %pattern_type.cce: type = pattern_type %ptr.216 [concrete]
 // CHECK:STDOUT:   %Contains.as.Destroy.impl.Op.type: type = fn_type @Contains.as.Destroy.impl.Op [concrete]
@@ -204,7 +204,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract1 [concrete = constants.%Abstract1]
 // CHECK:STDOUT:   impl_decl @Abstract1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract1.as.Destroy.impl.%Abstract1.as.Destroy.impl.Op.decl), @Abstract1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.188]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.4df]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -220,7 +220,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Contains [concrete = constants.%Contains]
 // CHECK:STDOUT:   impl_decl @Contains.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Contains.as.Destroy.impl.%Contains.as.Destroy.impl.Op.decl), @Contains.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6a6]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f0e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness <error> [concrete = <error>]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -419,7 +419,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Abstract4: type = class_type @Abstract4 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.695: <witness> = impl_witness @Abstract4.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05e: <witness> = impl_witness @Abstract4.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d57: type = ptr_type %Abstract4 [concrete]
 // CHECK:STDOUT:   %pattern_type.909: type = pattern_type %ptr.d57 [concrete]
 // CHECK:STDOUT:   %Abstract4.as.Destroy.impl.Op.type: type = fn_type @Abstract4.as.Destroy.impl.Op [concrete]
@@ -427,7 +427,7 @@ fn Var5() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Abstract5: type = class_type @Abstract5 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.5a2: <witness> = impl_witness @Abstract5.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.06f: <witness> = impl_witness @Abstract5.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.194: type = ptr_type %Abstract5 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %ptr.194 [concrete]
 // CHECK:STDOUT:   %Abstract5.as.Destroy.impl.Op.type: type = fn_type @Abstract5.as.Destroy.impl.Op [concrete]
@@ -496,7 +496,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract4 [concrete = constants.%Abstract4]
 // CHECK:STDOUT:   impl_decl @Abstract4.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract4.as.Destroy.impl.%Abstract4.as.Destroy.impl.Op.decl), @Abstract4.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.695]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -508,7 +508,7 @@ fn Var5() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract5 [concrete = constants.%Abstract5]
 // CHECK:STDOUT:   impl_decl @Abstract5.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract5.as.Destroy.impl.%Abstract5.as.Destroy.impl.Op.decl), @Abstract5.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.5a2]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.06f]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/field_access.carbon b/toolchain/check/testdata/class/field_access.carbon
index 838ce6de6c22..7291b32df714 100644
--- a/toolchain/check/testdata/class/field_access.carbon
+++ b/toolchain/check/testdata/class/field_access.carbon
@@ -37,7 +37,7 @@ fn Run() {
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -50,29 +50,29 @@ fn Run() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -86,8 +86,8 @@ fn Run() {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -127,7 +127,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.j.k [concrete = constants.%complete_type.cf7]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -152,10 +152,10 @@ fn Run() {
 // CHECK:STDOUT:   %j.ref.loc22: %Class.elem = name_ref j, @Class.%.loc16 [concrete = @Class.%.loc16]
 // CHECK:STDOUT:   %.loc22_4: ref %i32 = class_element_access %c.ref.loc22, element0
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_7.1: <bound method> = bound_method %int_1, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_7.1: <bound method> = bound_method %int_1, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_7.2: <bound method> = bound_method %int_1, %specific_fn.loc22 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc22_7.2: <bound method> = bound_method %int_1, %specific_fn.loc22 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22: init %i32 = call %bound_method.loc22_7.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc22_7: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %.loc22_4, %.loc22_7
@@ -163,10 +163,10 @@ fn Run() {
 // CHECK:STDOUT:   %k.ref.loc23: %Class.elem = name_ref k, @Class.%.loc17 [concrete = @Class.%.loc17]
 // CHECK:STDOUT:   %.loc23_4: ref %i32 = class_element_access %c.ref.loc23, element1
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_7.1: <bound method> = bound_method %int_2, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc23: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_7.1: <bound method> = bound_method %int_2, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc23: <specific function> = specific_function %impl.elem0.loc23, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_7.2: <bound method> = bound_method %int_2, %specific_fn.loc23 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc23_7.2: <bound method> = bound_method %int_2, %specific_fn.loc23 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23: init %i32 = call %bound_method.loc23_7.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc23_7: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   assign %.loc23_4, %.loc23_7
@@ -200,13 +200,13 @@ fn Run() {
 // CHECK:STDOUT:     %i32.loc25: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ck: ref %i32 = bind_name ck, %ck.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %ck.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %ck.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc25: <bound method> = bound_method %ck.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc25: %ptr.235 = addr_of %ck.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc25: init %empty_tuple.type = call %bound_method.loc25(%addr.loc25)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %cj.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %cj.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc24: <bound method> = bound_method %cj.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc24: %ptr.235 = addr_of %cj.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc24: init %empty_tuple.type = call %bound_method.loc24(%addr.loc24)
diff --git a/toolchain/check/testdata/class/field_access_in_value.carbon b/toolchain/check/testdata/class/field_access_in_value.carbon
index 34e8a2de225e..21a1ee6563d5 100644
--- a/toolchain/check/testdata/class/field_access_in_value.carbon
+++ b/toolchain/check/testdata/class/field_access_in_value.carbon
@@ -38,7 +38,7 @@ fn Test() {
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -51,29 +51,29 @@ fn Test() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -87,8 +87,8 @@ fn Test() {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -128,7 +128,7 @@ fn Test() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.j.k [concrete = constants.%complete_type.cf7]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -153,10 +153,10 @@ fn Test() {
 // CHECK:STDOUT:   %j.ref.loc22: %Class.elem = name_ref j, @Class.%.loc16 [concrete = @Class.%.loc16]
 // CHECK:STDOUT:   %.loc22_5: ref %i32 = class_element_access %cv.ref.loc22, element0
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_8.1: <bound method> = bound_method %int_1, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_8.1: <bound method> = bound_method %int_1, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_8.2: <bound method> = bound_method %int_1, %specific_fn.loc22 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc22_8.2: <bound method> = bound_method %int_1, %specific_fn.loc22 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22: init %i32 = call %bound_method.loc22_8.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc22_8: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %.loc22_5, %.loc22_8
@@ -164,10 +164,10 @@ fn Test() {
 // CHECK:STDOUT:   %k.ref.loc23: %Class.elem = name_ref k, @Class.%.loc17 [concrete = @Class.%.loc17]
 // CHECK:STDOUT:   %.loc23_5: ref %i32 = class_element_access %cv.ref.loc23, element1
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_8.1: <bound method> = bound_method %int_2, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc23: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_8.1: <bound method> = bound_method %int_2, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc23: <specific function> = specific_function %impl.elem0.loc23, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_8.2: <bound method> = bound_method %int_2, %specific_fn.loc23 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc23_8.2: <bound method> = bound_method %int_2, %specific_fn.loc23 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23: init %i32 = call %bound_method.loc23_8.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc23_8: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   assign %.loc23_5, %.loc23_8
@@ -208,13 +208,13 @@ fn Test() {
 // CHECK:STDOUT:     %i32.loc26: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ck: ref %i32 = bind_name ck, %ck.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %ck.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %ck.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc26: <bound method> = bound_method %ck.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc26: %ptr.235 = addr_of %ck.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc26: init %empty_tuple.type = call %bound_method.loc26(%addr.loc26)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %cj.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %cj.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc25: <bound method> = bound_method %cj.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc25: %ptr.235 = addr_of %cj.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc25: init %empty_tuple.type = call %bound_method.loc25(%addr.loc25)
diff --git a/toolchain/check/testdata/class/generic/adapt.carbon b/toolchain/check/testdata/class/generic/adapt.carbon
index 7143219695b9..1a6eb9d271e8 100644
--- a/toolchain/check/testdata/class/generic/adapt.carbon
+++ b/toolchain/check/testdata/class/generic/adapt.carbon
@@ -138,7 +138,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %C.elem.66c: type = unbound_element_type %C.f2e, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -156,7 +156,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %C.elem.476: type = unbound_element_type %C.98a, %i32 [concrete]
 // CHECK:STDOUT:   %struct_type.x.ed6: type = struct_type {.x: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.1ec: <witness> = complete_type_witness %struct_type.x.ed6 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.223: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ee3: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.0f9: type = ptr_type %Adapter [concrete]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %ptr.0f9 [concrete]
 // CHECK:STDOUT:   %Adapter.as.Destroy.impl.Op.type: type = fn_type @Adapter.as.Destroy.impl.Op [concrete]
@@ -212,7 +212,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc4_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -270,7 +270,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.x.2ac [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -290,7 +290,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Adapter [concrete = constants.%Adapter]
 // CHECK:STDOUT:   impl_decl @Adapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Adapter.as.Destroy.impl.%Adapter.as.Destroy.impl.Op.decl), @Adapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.223]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ee3]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x.ed6 [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -334,7 +334,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -497,7 +497,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %C.elem.66c: type = unbound_element_type %C.f2e, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -515,7 +515,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %C.elem.476: type = unbound_element_type %C.98a, %i32 [concrete]
 // CHECK:STDOUT:   %struct_type.x.ed6: type = struct_type {.x: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.1ec: <witness> = complete_type_witness %struct_type.x.ed6 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.223: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ee3: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.0f9: type = ptr_type %Adapter [concrete]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %ptr.0f9 [concrete]
 // CHECK:STDOUT:   %Adapter.as.Destroy.impl.Op.type: type = fn_type @Adapter.as.Destroy.impl.Op [concrete]
@@ -575,7 +575,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc4_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -633,7 +633,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.x.2ac [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -653,7 +653,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Adapter [concrete = constants.%Adapter]
 // CHECK:STDOUT:   impl_decl @Adapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Adapter.as.Destroy.impl.%Adapter.as.Destroy.impl.Op.decl), @Adapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.223]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ee3]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x.ed6 [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -693,7 +693,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -727,7 +727,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %C.elem.66c: type = unbound_element_type %C.f2e, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -745,7 +745,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %C.elem.476: type = unbound_element_type %C.98a, %i32 [concrete]
 // CHECK:STDOUT:   %struct_type.x.ed6: type = struct_type {.x: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.1ec: <witness> = complete_type_witness %struct_type.x.ed6 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.223: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ee3: <witness> = impl_witness @Adapter.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.0f9: type = ptr_type %Adapter [concrete]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %ptr.0f9 [concrete]
 // CHECK:STDOUT:   %Adapter.as.Destroy.impl.Op.type: type = fn_type @Adapter.as.Destroy.impl.Op [concrete]
@@ -782,7 +782,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc7_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -840,7 +840,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type.loc9_1.1: <witness> = complete_type_witness constants.%struct_type.x.2ac [symbolic = %complete_type.loc9_1.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc9_1.1
 // CHECK:STDOUT:
@@ -860,7 +860,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Adapter [concrete = constants.%Adapter]
 // CHECK:STDOUT:   impl_decl @Adapter.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Adapter.as.Destroy.impl.%Adapter.as.Destroy.impl.Op.decl), @Adapter.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.223]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ee3]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x.ed6 [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -890,7 +890,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -938,7 +938,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.afc: <witness> = impl_witness imports.%Destroy.impl_witness_table.00b, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.4e8: <witness> = impl_witness imports.%Destroy.impl_witness_table.c98, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
@@ -964,16 +964,16 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %.22b: @C.%C.elem (%C.elem.66c) = field_decl x, element0 [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Main.import_ref.21a = import_ref Main//extend_adapt_specific_type_library, loc7_19, unloaded
+// CHECK:STDOUT:   %Main.import_ref.5b7 = import_ref Main//extend_adapt_specific_type_library, loc7_19, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//extend_adapt_specific_type_library, loc7_9, loaded [symbolic = @C.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.db0: type = import_ref Main//extend_adapt_specific_type_library, loc7_19, loaded [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//extend_adapt_specific_type_library, inst39 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.251 = import_ref Main//extend_adapt_specific_type_library, loc7_19, unloaded
-// CHECK:STDOUT:   %Destroy.impl_witness_table.00b = impl_witness_table (%Main.import_ref.251), @C.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//extend_adapt_specific_type_library, inst39 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.ecf = import_ref Main//extend_adapt_specific_type_library, loc7_19, unloaded
+// CHECK:STDOUT:   %Destroy.impl_witness_table.c98 = impl_witness_table (%Main.import_ref.ecf), @C.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//extend_adapt_specific_type_library, loc7_9, loaded [symbolic = @C.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.07a = import_ref Main//extend_adapt_specific_type_library, loc11_15, unloaded
+// CHECK:STDOUT:   %Main.import_ref.66d = import_ref Main//extend_adapt_specific_type_library, loc11_15, unloaded
 // CHECK:STDOUT:   %Main.import_ref.dd9: type = import_ref Main//extend_adapt_specific_type_library, loc11_15, loaded [concrete = constants.%Adapter]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//extend_adapt_specific_type_library, inst39 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//extend_adapt_specific_type_library, inst39 [no loc], loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1004,21 +1004,21 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(imports.%Main.import_ref.5ab3ec.2: type) [from "extend_adapt_specific_type_library.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.00b, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.afc)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.c98, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4e8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.db0 as imports.%Main.import_ref.cb9298.1 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.db0 as imports.%Main.import_ref.063034.1 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.21a
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.5b7
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Adapter.as.Destroy.impl: imports.%Main.import_ref.dd9 as imports.%Main.import_ref.cb9298.2 [from "extend_adapt_specific_type_library.carbon"] {
+// CHECK:STDOUT: impl @Adapter.as.Destroy.impl: imports.%Main.import_ref.dd9 as imports.%Main.import_ref.063034.2 [from "extend_adapt_specific_type_library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.07a
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.66d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @Adapter [from "extend_adapt_specific_type_library.carbon"] {
@@ -1087,7 +1087,7 @@ fn ImportedConvertLocal(a: Adapter(C)) -> i32 {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.afc
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4e8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/class/generic/base_is_generic.carbon b/toolchain/check/testdata/class/generic/base_is_generic.carbon
index 2937d91d9c3f..67759077a2db 100644
--- a/toolchain/check/testdata/class/generic/base_is_generic.carbon
+++ b/toolchain/check/testdata/class/generic/base_is_generic.carbon
@@ -102,7 +102,7 @@ fn H() {
 // CHECK:STDOUT:   %Base.elem.9af: type = unbound_element_type %Base.370, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -115,7 +115,7 @@ fn H() {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %Param.elem: type = unbound_element_type %Param, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2b9: <witness> = impl_witness @Param.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.11e: <witness> = impl_witness @Param.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.756: type = ptr_type %Param [concrete]
 // CHECK:STDOUT:   %pattern_type.fae: type = pattern_type %ptr.756 [concrete]
 // CHECK:STDOUT:   %Param.as.Destroy.impl.Op.type: type = fn_type @Param.as.Destroy.impl.Op [concrete]
@@ -128,7 +128,7 @@ fn H() {
 // CHECK:STDOUT:   %struct_type.x.975: type = struct_type {.x: %Param} [concrete]
 // CHECK:STDOUT:   %complete_type.db3: <witness> = complete_type_witness %struct_type.x.975 [concrete]
 // CHECK:STDOUT:   %Derived.elem: type = unbound_element_type %Derived, %Base.7a8 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -188,7 +188,7 @@ fn H() {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_17.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -262,7 +262,7 @@ fn H() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.x.2ac [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -280,7 +280,7 @@ fn H() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Param [concrete = constants.%Param]
 // CHECK:STDOUT:   impl_decl @Param.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Param.as.Destroy.impl.%Param.as.Destroy.impl.Op.decl), @Param.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2b9]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.11e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.y [concrete = constants.%complete_type.0f9]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -297,7 +297,7 @@ fn H() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.8bc [concrete = constants.%complete_type.b07]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -345,7 +345,7 @@ fn H() {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -526,7 +526,7 @@ fn H() {
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -534,7 +534,7 @@ fn H() {
 // CHECK:STDOUT:   %X: type = class_type @X [concrete]
 // CHECK:STDOUT:   %X.G.type: type = fn_type @X.G [concrete]
 // CHECK:STDOUT:   %X.G: %X.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.807: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.286: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d17: type = ptr_type %X [concrete]
 // CHECK:STDOUT:   %pattern_type.1c6: type = pattern_type %ptr.d17 [concrete]
 // CHECK:STDOUT:   %X.as.Destroy.impl.Op.type: type = fn_type @X.as.Destroy.impl.Op [concrete]
@@ -576,7 +576,7 @@ fn H() {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc4_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -630,7 +630,7 @@ fn H() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness <error> [concrete = <error>]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -648,7 +648,7 @@ fn H() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%X [concrete = constants.%X]
 // CHECK:STDOUT:   impl_decl @X.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@X.as.Destroy.impl.%X.as.Destroy.impl.Op.decl), @X.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.807]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.286]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -691,7 +691,7 @@ fn H() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -722,7 +722,7 @@ fn H() {
 // CHECK:STDOUT:   %X.G.b504c4.1: %X.G.type.56f312.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.321: <witness> = impl_witness @X.%Destroy.impl_witness_table, @X.as.Destroy.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.9a6: <witness> = impl_witness @X.%Destroy.impl_witness_table, @X.as.Destroy.impl(%U) [symbolic]
 // CHECK:STDOUT:   %ptr.428: type = ptr_type %X.75b6d8.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.d72: type = pattern_type %ptr.428 [symbolic]
 // CHECK:STDOUT:   %X.as.Destroy.impl.Op.type: type = fn_type @X.as.Destroy.impl.Op, @X.as.Destroy.impl(%U) [symbolic]
@@ -740,7 +740,7 @@ fn H() {
 // CHECK:STDOUT:   %X.G.b504c4.2: %X.G.type.56f312.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.441: <witness> = require_complete_type %X.75b6d8.2 [symbolic]
 // CHECK:STDOUT:   %C.elem.3f4: type = unbound_element_type %C.f2e, %X.75b6d8.2 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -803,7 +803,7 @@ fn H() {
 // CHECK:STDOUT: generic impl @X.as.Destroy.impl(@X.%U.loc4_14.2: type) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %X: type = class_type @X, @X(%U) [symbolic = %X (constants.%X.75b6d8.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @X.%Destroy.impl_witness_table, @X.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.321)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @X.%Destroy.impl_witness_table, @X.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9a6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %X.as.Destroy.impl.Op.type: type = fn_type @X.as.Destroy.impl.Op, @X.as.Destroy.impl(%U) [symbolic = %X.as.Destroy.impl.Op.type (constants.%X.as.Destroy.impl.Op.type)]
@@ -832,7 +832,7 @@ fn H() {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc8_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -877,7 +877,7 @@ fn H() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%X.75b6d8.1 [symbolic = @X.as.Destroy.impl.%X (constants.%X.75b6d8.1)]
 // CHECK:STDOUT:     impl_decl @X.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@X.as.Destroy.impl.%X.as.Destroy.impl.Op.decl), @X.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @X.as.Destroy.impl(constants.%U) [symbolic = @X.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.321)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @X.as.Destroy.impl(constants.%U) [symbolic = @X.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9a6)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -907,7 +907,7 @@ fn H() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type.loc10_1.1: <witness> = complete_type_witness constants.%struct_type.base.f5f [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.768)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc10_1.1
 // CHECK:STDOUT:
@@ -1010,7 +1010,7 @@ fn H() {
 // CHECK:STDOUT: specific @X.as.Destroy.impl(constants.%U) {
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %X => constants.%X.75b6d8.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.321
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9a6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @X.as.Destroy.impl.Op(constants.%U) {
@@ -1035,7 +1035,7 @@ fn H() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/class/generic/call.carbon b/toolchain/check/testdata/class/generic/call.carbon
index ff44bf62aa53..ced015988f23 100644
--- a/toolchain/check/testdata/class/generic/call.carbon
+++ b/toolchain/check/testdata/class/generic/call.carbon
@@ -108,7 +108,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %Class.ab2: type = class_type @Class, @Class(%T, %N.356) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.16f: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T, %N.356) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.c35: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T, %N.356) [symbolic]
 // CHECK:STDOUT:   %ptr.770: type = ptr_type %Class.ab2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.b96: type = pattern_type %ptr.770 [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T, %N.356) [symbolic]
@@ -119,25 +119,25 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %Class.f29: type = class_type @Class, @Class(%ptr.235, %int_5.0f6) [concrete]
 // CHECK:STDOUT:   %pattern_type.d51: type = pattern_type %Class.f29 [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Class.dd4: type = class_type @Class, @Class(%empty_tuple.type, %int_0.6a9) [concrete]
 // CHECK:STDOUT:   %pattern_type.c73: type = pattern_type %Class.dd4 [concrete]
@@ -154,8 +154,8 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -190,10 +190,10 @@ class Outer(T:! type) {
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %ptr: type = ptr_type %i32 [concrete = constants.%ptr.235]
 // CHECK:STDOUT:     %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
-// CHECK:STDOUT:     %impl.elem0.loc6: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc6_21.1: <bound method> = bound_method %int_5, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:     %impl.elem0.loc6: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc6_21.1: <bound method> = bound_method %int_5, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:     %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_21.2: <bound method> = bound_method %int_5, %specific_fn.loc6 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:     %bound_method.loc6_21.2: <bound method> = bound_method %int_5, %specific_fn.loc6 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6: init %i32 = call %bound_method.loc6_21.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:     %.loc6_21.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:     %.loc6_21.3: %i32 = converted %int_5, %.loc6_21.2 [concrete = constants.%int_5.0f6]
@@ -210,10 +210,10 @@ class Outer(T:! type) {
 // CHECK:STDOUT:     %.loc9_15: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:     %.loc9_19.2: type = converted %.loc9_15, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %impl.elem0.loc9: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc9_19.1: <bound method> = bound_method %int_0, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:     %impl.elem0.loc9: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc9_19.1: <bound method> = bound_method %int_0, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:     %specific_fn.loc9: <specific function> = specific_function %impl.elem0.loc9, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc9_19.2: <bound method> = bound_method %int_0, %specific_fn.loc9 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:     %bound_method.loc9_19.2: <bound method> = bound_method %int_0, %specific_fn.loc9 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9: init %i32 = call %bound_method.loc9_19.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:     %.loc9_19.3: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:     %.loc9_19.4: %i32 = converted %int_0, %.loc9_19.3 [concrete = constants.%int_0.6a9]
@@ -226,7 +226,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %N: %i32 = bind_symbolic_name N, 1 [symbolic = %N (constants.%N.356)]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%T, %N) [symbolic = %Class (constants.%Class.ab2)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T, %N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.16f)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T, %N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c35)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T, %N) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
@@ -262,7 +262,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class.ab2 [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class.ab2)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T, constants.%N.356) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.16f)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T, constants.%N.356) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.c35)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -292,7 +292,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %N => constants.%N.356
 // CHECK:STDOUT:   %Class => constants.%Class.ab2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.16f
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c35
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%T, constants.%N.356) {
@@ -816,14 +816,14 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %Inner.D.d85: %Inner.D.type.102 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.de8: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.647: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %ptr.276: type = ptr_type %Inner.c71 [symbolic]
 // CHECK:STDOUT:   %pattern_type.01f: type = pattern_type %ptr.276 [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a35: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7ee: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6ff: type = ptr_type %Outer.9d6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.07e: type = pattern_type %ptr.6ff [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic]
@@ -875,7 +875,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 1 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %Inner: type = class_type @Inner, @Inner(%T, %U) [symbolic = %Inner (constants.%Inner.c71)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.de8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.647)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type)]
@@ -904,7 +904,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%T.loc2_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%T) [symbolic = %Outer (constants.%Outer.9d6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic = %Outer.as.Destroy.impl.Op.type (constants.%Outer.as.Destroy.impl.Op.type)]
@@ -947,7 +947,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1019,7 +1019,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Inner.c71 [symbolic = @Inner.as.Destroy.impl.%Inner (constants.%Inner.c71)]
 // CHECK:STDOUT:     impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.de8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.647)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1215,7 +1215,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %Inner => constants.%Inner.c71
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.de8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.647
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%T, constants.%U) {
@@ -1229,7 +1229,7 @@ class Outer(T:! type) {
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Outer => constants.%Outer.9d6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a35
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ee
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/class/generic/complete_in_conversion.carbon b/toolchain/check/testdata/class/generic/complete_in_conversion.carbon
index 91a498aed4ff..79d9241e905f 100644
--- a/toolchain/check/testdata/class/generic/complete_in_conversion.carbon
+++ b/toolchain/check/testdata/class/generic/complete_in_conversion.carbon
@@ -47,7 +47,7 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -67,44 +67,44 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT:   %A.elem.500: type = unbound_element_type %A.dd3, %B [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.f49: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.f49 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.588: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.960 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.f9c: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.f9c(%N.51e) [symbolic]
-// CHECK:STDOUT:   %iN.builtin.8fe: type = int_type signed, %Int.as.ImplicitAs.impl.Convert.call [symbolic]
-// CHECK:STDOUT:   %require_complete.e34: <witness> = require_complete_type %iN.builtin.8fe [symbolic]
-// CHECK:STDOUT:   %A.elem.07f: type = unbound_element_type %A.dd3, %iN.builtin.8fe [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.3b2: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.4d7: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.4d7 [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.d6b: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.87c [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.13b: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.13b(%N.51e) [symbolic]
+// CHECK:STDOUT:   %iN.builtin.fe4: type = int_type signed, %Int.as.ImplicitAs.impl.Convert.call [symbolic]
+// CHECK:STDOUT:   %require_complete.10f: <witness> = require_complete_type %iN.builtin.fe4 [symbolic]
+// CHECK:STDOUT:   %A.elem.85e: type = unbound_element_type %A.dd3, %iN.builtin.fe4 [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.da6: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%N.51e) [symbolic]
 // CHECK:STDOUT:   %ptr.72a: type = ptr_type %A.dd3 [symbolic]
 // CHECK:STDOUT:   %pattern_type.b2f: type = pattern_type %ptr.72a [symbolic]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%N.51e) [symbolic]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op: %A.as.Destroy.impl.Op.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %struct_type.base.n: type = struct_type {.base: %B, .n: %iN.builtin.8fe} [symbolic]
-// CHECK:STDOUT:   %complete_type.beb: <witness> = complete_type_witness %struct_type.base.n [symbolic]
+// CHECK:STDOUT:   %struct_type.base.n: type = struct_type {.base: %B, .n: %iN.builtin.fe4} [symbolic]
+// CHECK:STDOUT:   %complete_type.035: <witness> = complete_type_witness %struct_type.base.n [symbolic]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %A.6fc: type = class_type @A, @A(%int_0.6a9) [concrete]
 // CHECK:STDOUT:   %ptr.b65: type = ptr_type %A.6fc [concrete]
@@ -112,8 +112,8 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %A.elem.d81: type = unbound_element_type %A.6fc, %B [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.0fd: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %bound_method.4b5: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.d56: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %bound_method.4b6: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -129,10 +129,10 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type.878 = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -181,10 +181,10 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT:     %.loc15_13: type = splice_block %ptr.loc15 [concrete = constants.%ptr.b65] {
 // CHECK:STDOUT:       %A.ref: %A.type = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:       %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:       %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:       %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:       %bound_method.loc15_12.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:       %bound_method.loc15_12.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:       %bound_method.loc15_12.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:       %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc15_12.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:       %.loc15_12.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:       %.loc15_12.2: %i32 = converted %int_0, %.loc15_12.1 [concrete = constants.%int_0.6a9]
@@ -214,7 +214,7 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT: generic impl @A.as.Destroy.impl(@A.%N.loc6_9.2: %i32) {
 // CHECK:STDOUT:   %N: %i32 = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.51e)]
 // CHECK:STDOUT:   %A: type = class_type @A, @A(%N) [symbolic = %A (constants.%A.dd3)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.3b2)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.da6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%N) [symbolic = %A.as.Destroy.impl.Op.type (constants.%A.as.Destroy.impl.Op.type)]
@@ -244,7 +244,7 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -260,36 +260,36 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %A: type = class_type @A, @A(%N.loc6_9.1) [symbolic = %A (constants.%A.dd3)]
 // CHECK:STDOUT:   %A.elem.loc7: type = unbound_element_type %A, constants.%B [symbolic = %A.elem.loc7 (constants.%A.elem.500)]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc6_9.1, constants.%Int.as.ImplicitAs.impl.Convert.960 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.588)]
-// CHECK:STDOUT:   %bound_method.loc12_14.3: <bound method> = bound_method %N.loc6_9.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc12_14.3 (constants.%bound_method.f9c)]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc6_9.1, constants.%Int.as.ImplicitAs.impl.Convert.87c [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.d6b)]
+// CHECK:STDOUT:   %bound_method.loc12_14.3: <bound method> = bound_method %N.loc6_9.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc12_14.3 (constants.%bound_method.13b)]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2: init Core.IntLiteral = call %bound_method.loc12_14.3(%N.loc6_9.1) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:   %iN.builtin: type = int_type signed, %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 [symbolic = %iN.builtin (constants.%iN.builtin.8fe)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %iN.builtin [symbolic = %require_complete (constants.%require_complete.e34)]
-// CHECK:STDOUT:   %A.elem.loc12: type = unbound_element_type %A, %iN.builtin [symbolic = %A.elem.loc12 (constants.%A.elem.07f)]
-// CHECK:STDOUT:   %struct_type.base.n: type = struct_type {.base: %B, .n: @A.%iN.builtin (%iN.builtin.8fe)} [symbolic = %struct_type.base.n (constants.%struct_type.base.n)]
-// CHECK:STDOUT:   %complete_type.loc13_1.2: <witness> = complete_type_witness %struct_type.base.n [symbolic = %complete_type.loc13_1.2 (constants.%complete_type.beb)]
+// CHECK:STDOUT:   %iN.builtin: type = int_type signed, %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 [symbolic = %iN.builtin (constants.%iN.builtin.fe4)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %iN.builtin [symbolic = %require_complete (constants.%require_complete.10f)]
+// CHECK:STDOUT:   %A.elem.loc12: type = unbound_element_type %A, %iN.builtin [symbolic = %A.elem.loc12 (constants.%A.elem.85e)]
+// CHECK:STDOUT:   %struct_type.base.n: type = struct_type {.base: %B, .n: @A.%iN.builtin (%iN.builtin.fe4)} [symbolic = %struct_type.base.n (constants.%struct_type.base.n)]
+// CHECK:STDOUT:   %complete_type.loc13_1.2: <witness> = complete_type_witness %struct_type.base.n [symbolic = %complete_type.loc13_1.2 (constants.%complete_type.035)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
 // CHECK:STDOUT:     %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B]
 // CHECK:STDOUT:     %.loc7: @A.%A.elem.loc7 (%A.elem.500) = base_decl %B.ref, element0 [concrete]
 // CHECK:STDOUT:     %Int.ref: %Int.type.913 = name_ref Int, file.%Int.decl [concrete = constants.%Int.779]
 // CHECK:STDOUT:     %N.ref: %i32 = name_ref N, %N.loc6_9.2 [symbolic = %N.loc6_9.1 (constants.%N.51e)]
-// CHECK:STDOUT:     %impl.elem0: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
-// CHECK:STDOUT:     %bound_method.loc12_14.1: <bound method> = bound_method %N.ref, %impl.elem0 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.588)]
+// CHECK:STDOUT:     %impl.elem0: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
+// CHECK:STDOUT:     %bound_method.loc12_14.1: <bound method> = bound_method %N.ref, %impl.elem0 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.d6b)]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc12_14.2: <bound method> = bound_method %N.ref, %specific_fn [symbolic = %bound_method.loc12_14.3 (constants.%bound_method.f9c)]
+// CHECK:STDOUT:     %bound_method.loc12_14.2: <bound method> = bound_method %N.ref, %specific_fn [symbolic = %bound_method.loc12_14.3 (constants.%bound_method.13b)]
 // CHECK:STDOUT:     %Int.as.ImplicitAs.impl.Convert.call.loc12_14.1: init Core.IntLiteral = call %bound_method.loc12_14.2(%N.ref) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc12_14.1: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc12_14.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc12_14.2: Core.IntLiteral = converted %N.ref, %.loc12_14.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:     %Int.call: init type = call %Int.ref(%.loc12_14.2) [symbolic = %iN.builtin (constants.%iN.builtin.8fe)]
-// CHECK:STDOUT:     %.loc12_15.1: type = value_of_initializer %Int.call [symbolic = %iN.builtin (constants.%iN.builtin.8fe)]
-// CHECK:STDOUT:     %.loc12_15.2: type = converted %Int.call, %.loc12_15.1 [symbolic = %iN.builtin (constants.%iN.builtin.8fe)]
-// CHECK:STDOUT:     %.loc12_8: @A.%A.elem.loc12 (%A.elem.07f) = field_decl n, element1 [concrete]
+// CHECK:STDOUT:     %Int.call: init type = call %Int.ref(%.loc12_14.2) [symbolic = %iN.builtin (constants.%iN.builtin.fe4)]
+// CHECK:STDOUT:     %.loc12_15.1: type = value_of_initializer %Int.call [symbolic = %iN.builtin (constants.%iN.builtin.fe4)]
+// CHECK:STDOUT:     %.loc12_15.2: type = converted %Int.call, %.loc12_15.1 [symbolic = %iN.builtin (constants.%iN.builtin.fe4)]
+// CHECK:STDOUT:     %.loc12_8: @A.%A.elem.loc12 (%A.elem.85e) = field_decl n, element1 [concrete]
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A.dd3 [symbolic = @A.as.Destroy.impl.%A (constants.%A.dd3)]
 // CHECK:STDOUT:     impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%N.51e) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.3b2)]
-// CHECK:STDOUT:     %complete_type.loc13_1.1: <witness> = complete_type_witness constants.%struct_type.base.n [symbolic = %complete_type.loc13_1.2 (constants.%complete_type.beb)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%N.51e) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.da6)]
+// CHECK:STDOUT:     %complete_type.loc13_1.1: <witness> = complete_type_witness constants.%struct_type.base.n [symbolic = %complete_type.loc13_1.2 (constants.%complete_type.035)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc13_1.1
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -343,7 +343,7 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT: specific @A.as.Destroy.impl(constants.%N.51e) {
 // CHECK:STDOUT:   %N => constants.%N.51e
 // CHECK:STDOUT:   %A => constants.%A.dd3
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.3b2
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.da6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as.Destroy.impl.Op(constants.%N.51e) {
@@ -359,8 +359,8 @@ fn F(a: A(0)*) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %A => constants.%A.6fc
 // CHECK:STDOUT:   %A.elem.loc7 => constants.%A.elem.d81
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound.0fd
-// CHECK:STDOUT:   %bound_method.loc12_14.3 => constants.%bound_method.4b5
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound.d56
+// CHECK:STDOUT:   %bound_method.loc12_14.3 => constants.%bound_method.4b6
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc12_14.2 => constants.%int_0.5c6
 // CHECK:STDOUT:   %iN.builtin => <error>
 // CHECK:STDOUT:   %require_complete => <error>
diff --git a/toolchain/check/testdata/class/generic/import.carbon b/toolchain/check/testdata/class/generic/import.carbon
index c39c3ed92e2e..0637708f0387 100644
--- a/toolchain/check/testdata/class/generic/import.carbon
+++ b/toolchain/check/testdata/class/generic/import.carbon
@@ -110,7 +110,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %CompleteClass.F: %CompleteClass.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d3a: <witness> = impl_witness @CompleteClass.%Destroy.impl_witness_table, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ce1: <witness> = impl_witness @CompleteClass.%Destroy.impl_witness_table, @CompleteClass.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.5b4: type = ptr_type %CompleteClass.f97 [symbolic]
 // CHECK:STDOUT:   %pattern_type.1fe: type = pattern_type %ptr.5b4 [symbolic]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
@@ -120,18 +120,18 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %CompleteClass.e9e: type = class_type @CompleteClass, @CompleteClass(%i32) [concrete]
@@ -151,8 +151,8 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -191,7 +191,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: generic impl @CompleteClass.as.Destroy.impl(@CompleteClass.%T.loc6_21.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %CompleteClass: type = class_type @CompleteClass, @CompleteClass(%T) [symbolic = %CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @CompleteClass.%Destroy.impl_witness_table, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d3a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @CompleteClass.%Destroy.impl_witness_table, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ce1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type)]
@@ -248,7 +248,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%CompleteClass.f97 [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass (constants.%CompleteClass.f97)]
 // CHECK:STDOUT:     impl_decl @CompleteClass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.decl), @CompleteClass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @CompleteClass.as.Destroy.impl(constants.%T) [symbolic = @CompleteClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d3a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @CompleteClass.as.Destroy.impl(constants.%T) [symbolic = @CompleteClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ce1)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.n [concrete = constants.%complete_type.54b]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -265,7 +265,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   fn() -> %i32 {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc8_27.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc8_27.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -308,7 +308,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass.f97
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d3a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ce1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl.Op(constants.%T) {
@@ -340,7 +340,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %CompleteClass.elem.9ef: type = unbound_element_type %CompleteClass.f97, %i32 [symbolic]
 // CHECK:STDOUT:   %CompleteClass.F.type.14f: type = fn_type @CompleteClass.F, @CompleteClass(%T) [symbolic]
 // CHECK:STDOUT:   %CompleteClass.F.874: %CompleteClass.F.type.14f = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.e38: <witness> = impl_witness imports.%Destroy.impl_witness_table.cce, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.07c: <witness> = impl_witness imports.%Destroy.impl_witness_table.439, @CompleteClass.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: %CompleteClass.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.5b4: type = ptr_type %CompleteClass.f97 [symbolic]
@@ -349,15 +349,15 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.595: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.595 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.458: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.e13: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %Class.type: type = generic_class_type @Class [concrete]
 // CHECK:STDOUT:   %Class.generic: %Class.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%T) [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %T [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.6d3: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.816: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.955: type = ptr_type %Class [symbolic]
 // CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %ptr.955 [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic]
@@ -373,15 +373,15 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %CompleteClass.F.971: %CompleteClass.F.type.0aa = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.n.44a: type = struct_type {.n: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.b9e: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.ea1: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.ea0: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.2ce: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1ad, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e14: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e14 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.b9e = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.2ce) [concrete]
-// CHECK:STDOUT:   %.940: type = fn_type_with_self_type %ImplicitAs.Convert.type.ea0, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.985: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.449, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.365: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.365 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.ea1 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.985) [concrete]
+// CHECK:STDOUT:   %.f75: type = fn_type_with_self_type %ImplicitAs.Convert.type.ea0, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %CompleteClass.val: %CompleteClass.a06 = struct_value (%int_1.47b) [concrete]
@@ -396,7 +396,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.b22 = import_ref Main//foo, loc6_31, unloaded
+// CHECK:STDOUT:   %Main.import_ref.fbb = import_ref Main//foo, loc6_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.eb1: <witness> = import_ref Main//foo, loc9_1, loaded [concrete = constants.%complete_type.a68]
 // CHECK:STDOUT:   %Main.import_ref.3c0 = import_ref Main//foo, inst36 [no loc], unloaded
@@ -404,14 +404,14 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Main.import_ref.570 = import_ref Main//foo, loc8_17, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.e27: type = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.894484.1 = import_ref Main//foo, loc6_31, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.58135e.1 = import_ref Main//foo, loc6_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.894484.2 = import_ref Main//foo, loc6_31, unloaded
-// CHECK:STDOUT:   %Destroy.impl_witness_table.cce = impl_witness_table (%Main.import_ref.894484.2), @CompleteClass.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.58135e.2 = import_ref Main//foo, loc6_31, unloaded
+// CHECK:STDOUT:   %Destroy.impl_witness_table.439 = impl_witness_table (%Main.import_ref.58135e.2), @CompleteClass.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.4: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.773: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6) = import_ref Main//foo, inst218 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.458)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1ad = impl_witness_table (%Main.import_ref.773), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.3ad: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1) = import_ref Main//foo, inst218 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.e13)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.449 = impl_witness_table (%Main.import_ref.3ad), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.5: type = import_ref Main//foo, loc4_13, loaded [symbolic = @Class.%T.1 (constants.%T)]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
@@ -450,23 +450,23 @@ class Class(U:! type) {
 // CHECK:STDOUT: generic impl @CompleteClass.as.Destroy.impl(imports.%Main.import_ref.5ab3ec.2: type) [from "foo.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %CompleteClass: type = class_type @CompleteClass, @CompleteClass(%T) [symbolic = %CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.cce, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e38)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.439, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.07c)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type) = struct_value () [symbolic = %CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Op = imports.%Main.import_ref.894484.1
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.b22
+// CHECK:STDOUT:     .Op = imports.%Main.import_ref.58135e.1
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.fbb
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @Class.as.Destroy.impl(@Class.%T.loc4: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%T) [symbolic = %Class (constants.%Class)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.6d3)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.816)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
@@ -527,7 +527,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.6d3)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.816)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.x [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -570,7 +570,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc9_17.1: %struct_type.n.44a = struct_literal (%int_1)
-// CHECK:STDOUT:   %impl.elem0: %.940 = impl_witness_access constants.%ImplicitAs.impl_witness.2ce, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb]
+// CHECK:STDOUT:   %impl.elem0: %.f75 = impl_witness_access constants.%ImplicitAs.impl_witness.985, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c]
 // CHECK:STDOUT:   %bound_method.loc9_17.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_17.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -596,7 +596,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass.f97
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e38
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.07c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.F(constants.%T) {}
@@ -615,7 +615,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Class => constants.%Class
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.6d3
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.816
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%T) {
@@ -664,17 +664,17 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %CompleteClass.F.specific_fn: <specific function> = specific_function %CompleteClass.F.f7c, @CompleteClass.F(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.39b: <witness> = impl_witness imports.%Destroy.impl_witness_table.d6d, @CompleteClass.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.058: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.2ef: %CompleteClass.as.Destroy.impl.Op.type.058 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.d93: <witness> = impl_witness imports.%Destroy.impl_witness_table.727, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.1a6: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.acd: %CompleteClass.as.Destroy.impl.Op.type.1a6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.5b4: type = ptr_type %CompleteClass.f97 [symbolic]
 // CHECK:STDOUT:   %pattern_type.1fe: type = pattern_type %ptr.5b4 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.7cf: <witness> = impl_witness imports.%Destroy.impl_witness_table.d6d, @CompleteClass.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.c97: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.6f7: %CompleteClass.as.Destroy.impl.Op.type.c97 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.bd6: <witness> = impl_witness imports.%Destroy.impl_witness_table.727, @CompleteClass.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.079: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.5fe: %CompleteClass.as.Destroy.impl.Op.type.079 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.a97: type = ptr_type %CompleteClass.e9e [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.a97 [concrete]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %CompleteClass.as.Destroy.impl.Op.6f7, @CompleteClass.as.Destroy.impl.Op(%i32) [concrete]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %CompleteClass.as.Destroy.impl.Op.5fe, @CompleteClass.as.Destroy.impl.Op(%i32) [concrete]
 // CHECK:STDOUT:   %UseField.type: type = fn_type @UseField [concrete]
 // CHECK:STDOUT:   %UseField: %UseField.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -697,12 +697,12 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Main.import_ref.a52: @CompleteClass.%CompleteClass.F.type (%CompleteClass.F.type.14f) = import_ref Main//foo, loc8_17, loaded [symbolic = @CompleteClass.%CompleteClass.F (constants.%CompleteClass.F.874)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.029: <witness> = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.39b)]
+// CHECK:STDOUT:   %Main.import_ref.a31: <witness> = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.e27: type = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.b79: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.058) = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.2ef)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.d6d = impl_witness_table (%Main.import_ref.b79), @CompleteClass.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.b2b: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.1a6) = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.acd)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.727 = impl_witness_table (%Main.import_ref.b2b), @CompleteClass.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.4: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %.364: @CompleteClass.%CompleteClass.elem (%CompleteClass.elem.28a) = field_decl n, element0 [concrete]
 // CHECK:STDOUT: }
@@ -741,15 +741,15 @@ class Class(U:! type) {
 // CHECK:STDOUT: generic impl @CompleteClass.as.Destroy.impl(imports.%Main.import_ref.5ab3ec.3: type) [from "foo.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %CompleteClass: type = class_type @CompleteClass, @CompleteClass(%T) [symbolic = %CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.d6d, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.39b)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.727, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type.058)]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.058) = struct_value () [symbolic = %CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.2ef)]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type.1a6)]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.1a6) = struct_value () [symbolic = %CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.acd)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.029
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.a31
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -797,8 +797,8 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %CompleteClass.F.call: init %i32 = call %CompleteClass.F.specific_fn()
 // CHECK:STDOUT:   %.loc7_15.1: %i32 = value_of_initializer %CompleteClass.F.call
 // CHECK:STDOUT:   %.loc7_15.2: %i32 = converted %CompleteClass.F.call, %.loc7_15.1
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%CompleteClass.as.Destroy.impl.Op.6f7
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%CompleteClass.as.Destroy.impl.Op.6f7, @CompleteClass.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%CompleteClass.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%CompleteClass.as.Destroy.impl.Op.5fe
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%CompleteClass.as.Destroy.impl.Op.5fe, @CompleteClass.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%CompleteClass.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %CompleteClass.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.a97 = addr_of %v.var
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -846,8 +846,8 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %n.ref: %CompleteClass.elem.7fc = name_ref n, imports.%Main.import_ref.e76 [concrete = imports.%.364]
 // CHECK:STDOUT:   %.loc12_11.1: ref %i32 = class_element_access %v.ref, element0
 // CHECK:STDOUT:   %.loc12_11.2: %i32 = bind_value %.loc12_11.1
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%CompleteClass.as.Destroy.impl.Op.6f7
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%CompleteClass.as.Destroy.impl.Op.6f7, @CompleteClass.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%CompleteClass.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%CompleteClass.as.Destroy.impl.Op.5fe
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%CompleteClass.as.Destroy.impl.Op.5fe, @CompleteClass.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%CompleteClass.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %CompleteClass.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.a97 = addr_of %v.var
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -883,7 +883,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass.f97
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.39b
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d93
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl.Op(constants.%T) {
@@ -896,11 +896,11 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%i32) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass.e9e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7cf
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.bd6
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type => constants.%CompleteClass.as.Destroy.impl.Op.type.c97
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op => constants.%CompleteClass.as.Destroy.impl.Op.6f7
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type => constants.%CompleteClass.as.Destroy.impl.Op.type.079
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op => constants.%CompleteClass.as.Destroy.impl.Op.5fe
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl.Op(constants.%i32) {
@@ -944,17 +944,17 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e33: <witness> = impl_witness imports.%Destroy.impl_witness_table.ed1, @CompleteClass.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.6b5: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.d10: %CompleteClass.as.Destroy.impl.Op.type.6b5 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.58c: <witness> = impl_witness imports.%Destroy.impl_witness_table.dd3, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.4a4: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.edc: %CompleteClass.as.Destroy.impl.Op.type.4a4 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.5b4: type = ptr_type %CompleteClass.f97 [symbolic]
 // CHECK:STDOUT:   %pattern_type.1fe: type = pattern_type %ptr.5b4 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.d20: <witness> = impl_witness imports.%Destroy.impl_witness_table.ed1, @CompleteClass.as.Destroy.impl(%ptr.9e1) [concrete]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.4b6: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%ptr.9e1) [concrete]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.cb5: %CompleteClass.as.Destroy.impl.Op.type.4b6 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.25e: <witness> = impl_witness imports.%Destroy.impl_witness_table.dd3, @CompleteClass.as.Destroy.impl(%ptr.9e1) [concrete]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type.18c: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%ptr.9e1) [concrete]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.741: %CompleteClass.as.Destroy.impl.Op.type.18c = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c79: type = ptr_type %CompleteClass.0fe [concrete]
 // CHECK:STDOUT:   %pattern_type.cea: type = pattern_type %ptr.c79 [concrete]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %CompleteClass.as.Destroy.impl.Op.cb5, @CompleteClass.as.Destroy.impl.Op(%ptr.9e1) [concrete]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %CompleteClass.as.Destroy.impl.Op.741, @CompleteClass.as.Destroy.impl.Op(%ptr.9e1) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -976,12 +976,12 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Main.import_ref.029: <witness> = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.e33)]
+// CHECK:STDOUT:   %Main.import_ref.a31: <witness> = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.58c)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.e27: type = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.e54: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.6b5) = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.d10)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.ed1 = impl_witness_table (%Main.import_ref.e54), @CompleteClass.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.9f1: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.4a4) = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.edc)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.dd3 = impl_witness_table (%Main.import_ref.9f1), @CompleteClass.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.4: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
@@ -1002,15 +1002,15 @@ class Class(U:! type) {
 // CHECK:STDOUT: generic impl @CompleteClass.as.Destroy.impl(imports.%Main.import_ref.5ab3ec.3: type) [from "foo.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %CompleteClass: type = class_type @CompleteClass, @CompleteClass(%T) [symbolic = %CompleteClass (constants.%CompleteClass.f97)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.ed1, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e33)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.dd3, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.58c)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type.6b5)]
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.6b5) = struct_value () [symbolic = %CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.d10)]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type.4a4)]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type.4a4) = struct_value () [symbolic = %CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op.edc)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.029
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.a31
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1053,8 +1053,8 @@ class Class(U:! type) {
 // CHECK:STDOUT:     %CompleteClass: type = class_type @CompleteClass, @CompleteClass(constants.%ptr.9e1) [concrete = constants.%CompleteClass.0fe]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %CompleteClass.0fe = bind_name v, %v.var
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%CompleteClass.as.Destroy.impl.Op.cb5
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%CompleteClass.as.Destroy.impl.Op.cb5, @CompleteClass.as.Destroy.impl.Op(constants.%ptr.9e1) [concrete = constants.%CompleteClass.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%CompleteClass.as.Destroy.impl.Op.741
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%CompleteClass.as.Destroy.impl.Op.741, @CompleteClass.as.Destroy.impl.Op(constants.%ptr.9e1) [concrete = constants.%CompleteClass.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %CompleteClass.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c79 = addr_of %v.var
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -1115,7 +1115,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass.f97
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e33
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.58c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl.Op(constants.%T) {
@@ -1128,11 +1128,11 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%ptr.9e1) {
 // CHECK:STDOUT:   %T => constants.%ptr.9e1
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass.0fe
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d20
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.25e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type => constants.%CompleteClass.as.Destroy.impl.Op.type.4b6
-// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op => constants.%CompleteClass.as.Destroy.impl.Op.cb5
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type => constants.%CompleteClass.as.Destroy.impl.Op.type.18c
+// CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op => constants.%CompleteClass.as.Destroy.impl.Op.741
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl.Op(constants.%ptr.9e1) {
@@ -1156,7 +1156,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %CompleteClass.elem: type = unbound_element_type %CompleteClass, %i32 [symbolic]
 // CHECK:STDOUT:   %CompleteClass.F.type: type = fn_type @CompleteClass.F, @CompleteClass(%T) [symbolic]
 // CHECK:STDOUT:   %CompleteClass.F: %CompleteClass.F.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.e38: <witness> = impl_witness imports.%Destroy.impl_witness_table.cce, @CompleteClass.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.07c: <witness> = impl_witness imports.%Destroy.impl_witness_table.439, @CompleteClass.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: %CompleteClass.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.5b4: type = ptr_type %CompleteClass [symbolic]
@@ -1169,7 +1169,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Class.type.cf06d9.2: type = generic_class_type @Class.loc12 [concrete]
 // CHECK:STDOUT:   %Class.generic.9545f5.2: %Class.type.cf06d9.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %Class.fe1b2d.2: type = class_type @Class.loc12, @Class.loc12(%U) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.6d3: <witness> = impl_witness @Class.loc12.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.816: <witness> = impl_witness @Class.loc12.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%U) [symbolic]
 // CHECK:STDOUT:   %ptr.955: type = ptr_type %Class.fe1b2d.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %ptr.955 [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%U) [symbolic]
@@ -1185,7 +1185,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.b22 = import_ref Main//foo, loc6_31, unloaded
+// CHECK:STDOUT:   %Main.import_ref.fbb = import_ref Main//foo, loc6_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.eb1: <witness> = import_ref Main//foo, loc9_1, loaded [concrete = constants.%complete_type.a68]
 // CHECK:STDOUT:   %Main.import_ref.3c0 = import_ref Main//foo, inst36 [no loc], unloaded
@@ -1193,11 +1193,11 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Main.import_ref.570 = import_ref Main//foo, loc8_17, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.e27: type = import_ref Main//foo, loc6_31, loaded [symbolic = @CompleteClass.as.Destroy.impl.%CompleteClass (constants.%CompleteClass)]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.894484.1 = import_ref Main//foo, loc6_31, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//foo, inst81 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.58135e.1 = import_ref Main//foo, loc6_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.894484.2 = import_ref Main//foo, loc6_31, unloaded
-// CHECK:STDOUT:   %Destroy.impl_witness_table.cce = impl_witness_table (%Main.import_ref.894484.2), @CompleteClass.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.58135e.2 = import_ref Main//foo, loc6_31, unloaded
+// CHECK:STDOUT:   %Destroy.impl_witness_table.439 = impl_witness_table (%Main.import_ref.58135e.2), @CompleteClass.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.4: type = import_ref Main//foo, loc6_21, loaded [symbolic = @CompleteClass.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.5: type = import_ref Main//foo, loc4_13, loaded [symbolic = @Class.1.%T (constants.%T)]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
@@ -1225,23 +1225,23 @@ class Class(U:! type) {
 // CHECK:STDOUT: generic impl @CompleteClass.as.Destroy.impl(imports.%Main.import_ref.5ab3ec.2: type) [from "foo.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %CompleteClass: type = class_type @CompleteClass, @CompleteClass(%T) [symbolic = %CompleteClass (constants.%CompleteClass)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.cce, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e38)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.439, @CompleteClass.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.07c)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op.type: type = fn_type @CompleteClass.as.Destroy.impl.Op, @CompleteClass.as.Destroy.impl(%T) [symbolic = %CompleteClass.as.Destroy.impl.Op.type (constants.%CompleteClass.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %CompleteClass.as.Destroy.impl.Op: @CompleteClass.as.Destroy.impl.%CompleteClass.as.Destroy.impl.Op.type (%CompleteClass.as.Destroy.impl.Op.type) = struct_value () [symbolic = %CompleteClass.as.Destroy.impl.Op (constants.%CompleteClass.as.Destroy.impl.Op)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.e27 as imports.%Main.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Op = imports.%Main.import_ref.894484.1
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.b22
+// CHECK:STDOUT:     .Op = imports.%Main.import_ref.58135e.1
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.fbb
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @Class.as.Destroy.impl(@Class.loc12.%U.loc12_13.2: type) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %Class: type = class_type @Class.loc12, @Class.loc12(%U) [symbolic = %Class (constants.%Class.fe1b2d.2)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.loc12.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.6d3)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.loc12.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.816)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%U) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
@@ -1303,7 +1303,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class.fe1b2d.2 [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class.fe1b2d.2)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%U) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.6d3)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%U) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.816)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness <error> [concrete = <error>]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1355,7 +1355,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @CompleteClass.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %CompleteClass => constants.%CompleteClass
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e38
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.07c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CompleteClass.F(constants.%T) {}
@@ -1378,7 +1378,7 @@ class Class(U:! type) {
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%U) {
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %Class => constants.%Class.fe1b2d.2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.6d3
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.816
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%U) {
diff --git a/toolchain/check/testdata/class/generic/init.carbon b/toolchain/check/testdata/class/generic/init.carbon
index 5ef07c2b48f0..79460150cb19 100644
--- a/toolchain/check/testdata/class/generic/init.carbon
+++ b/toolchain/check/testdata/class/generic/init.carbon
@@ -61,12 +61,12 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.95a: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.d1e: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.955: type = ptr_type %Class.fe1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %ptr.955 [symbolic]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type.acd: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.5c0: %Class.as.Destroy.impl.Op.type.acd = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.fdf: %Destroy.type = facet_value %Class.fe1, (%Destroy.impl_witness.95a) [symbolic]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type.412: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.9bc: %Class.as.Destroy.impl.Op.type.412 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.976: %Destroy.type = facet_value %Class.fe1, (%Destroy.impl_witness.d1e) [symbolic]
 // CHECK:STDOUT:   %struct_type.k.b21: type = struct_type {.k: %T} [symbolic]
 // CHECK:STDOUT:   %complete_type.b9e: <witness> = complete_type_witness %struct_type.k.b21 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
@@ -74,8 +74,8 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:   %InitFromStructGeneric: %InitFromStructGeneric.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.4f8: <witness> = require_complete_type %Class.fe1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.3c1: type = pattern_type %Class.fe1 [symbolic]
-// CHECK:STDOUT:   %.02c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.fdf [symbolic]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn.841: <specific function> = specific_function %Class.as.Destroy.impl.Op.5c0, @Class.as.Destroy.impl.Op(%T) [symbolic]
+// CHECK:STDOUT:   %.0e5: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.976 [symbolic]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn.e70: <specific function> = specific_function %Class.as.Destroy.impl.Op.9bc, @Class.as.Destroy.impl.Op(%T) [symbolic]
 // CHECK:STDOUT:   %require_complete.2ae: <witness> = require_complete_type %ptr.955 [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
@@ -91,12 +91,12 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:   %struct_type.k.0bf: type = struct_type {.k: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.954: <witness> = complete_type_witness %struct_type.k.0bf [concrete]
 // CHECK:STDOUT:   %pattern_type.0fa: type = pattern_type %Class.247 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9fc: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type.9d9: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.e3d: %Class.as.Destroy.impl.Op.type.9d9 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ea6: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type.ce6: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.831: %Class.as.Destroy.impl.Op.type.ce6 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.f7c: type = ptr_type %Class.247 [concrete]
 // CHECK:STDOUT:   %pattern_type.14a: type = pattern_type %ptr.f7c [concrete]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn.19c: <specific function> = specific_function %Class.as.Destroy.impl.Op.e3d, @Class.as.Destroy.impl.Op(%i32) [concrete]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn.213: <specific function> = specific_function %Class.as.Destroy.impl.Op.831, @Class.as.Destroy.impl.Op(%i32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -162,14 +162,14 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT: generic impl @Class.as.Destroy.impl(@Class.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%T) [symbolic = %Class (constants.%Class.fe1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type.acd)]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op: @Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type.acd) = struct_value () [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.5c0)]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type.412)]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op: @Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type.412) = struct_value () [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.9bc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @Class.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %Class.as.Destroy.impl.Op.decl: @Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type.acd) = fn_decl @Class.as.Destroy.impl.Op [symbolic = @Class.as.Destroy.impl.%Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.5c0)] {
+// CHECK:STDOUT:     %Class.as.Destroy.impl.Op.decl: @Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type.412) = fn_decl @Class.as.Destroy.impl.Op [symbolic = @Class.as.Destroy.impl.%Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.9bc)] {
 // CHECK:STDOUT:       %self.patt: @Class.as.Destroy.impl.Op.%pattern_type (%pattern_type.9e0) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @Class.as.Destroy.impl.Op.%pattern_type (%pattern_type.9e0) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc4_23.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -204,7 +204,7 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class.fe1 [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class.fe1)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.k.b21 [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.b9e)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -237,12 +237,12 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:   %pattern_type.loc9: type = pattern_type %Class.loc9_17.2 [symbolic = %pattern_type.loc9 (constants.%pattern_type.3c1)]
 // CHECK:STDOUT:   %struct_type.k: type = struct_type {.k: @InitFromStructGeneric.%T.loc8_26.1 (%T)} [symbolic = %struct_type.k (constants.%struct_type.k.b21)]
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class.loc9_17.2, %T.loc8_26.1 [symbolic = %Class.elem (constants.%Class.elem.e26)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T.loc8_26.1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Class.loc9_17.2, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.fdf)]
-// CHECK:STDOUT:   %.loc9_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc9_3.2 (constants.%.02c)]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T.loc8_26.1) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type.acd)]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op: @InitFromStructGeneric.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type.acd) = struct_value () [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.5c0)]
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Class.as.Destroy.impl.Op, @Class.as.Destroy.impl.Op(%T.loc8_26.1) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn.841)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T.loc8_26.1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Class.loc9_17.2, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.976)]
+// CHECK:STDOUT:   %.loc9_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc9_3.2 (constants.%.0e5)]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T.loc8_26.1) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type.412)]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op: @InitFromStructGeneric.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type.412) = struct_value () [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.9bc)]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Class.as.Destroy.impl.Op, @Class.as.Destroy.impl.Op(%T.loc8_26.1) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn.e70)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %Class.loc9_17.2 [symbolic = %ptr (constants.%ptr.955)]
 // CHECK:STDOUT:   %require_complete.loc9_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc9_3 (constants.%require_complete.2ae)]
 // CHECK:STDOUT:
@@ -270,9 +270,9 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:     %k.ref: @InitFromStructGeneric.%Class.elem (%Class.elem.e26) = name_ref k, @Class.%.loc5 [concrete = @Class.%.loc5]
 // CHECK:STDOUT:     %.loc10_11.1: ref @InitFromStructGeneric.%T.loc8_26.1 (%T) = class_element_access %v.ref, element0
 // CHECK:STDOUT:     %.loc10_11.2: @InitFromStructGeneric.%T.loc8_26.1 (%T) = bind_value %.loc10_11.1
-// CHECK:STDOUT:     %impl.elem0: @InitFromStructGeneric.%.loc9_3.2 (%.02c) = impl_witness_access constants.%Destroy.impl_witness.95a, element0 [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.5c0)]
+// CHECK:STDOUT:     %impl.elem0: @InitFromStructGeneric.%.loc9_3.2 (%.0e5) = impl_witness_access constants.%Destroy.impl_witness.d1e, element0 [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op.9bc)]
 // CHECK:STDOUT:     %bound_method.loc9_3.1: <bound method> = bound_method %v.var, %impl.elem0
-// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Class.as.Destroy.impl.Op(constants.%T) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn.841)]
+// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Class.as.Destroy.impl.Op(constants.%T) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn.e70)]
 // CHECK:STDOUT:     %bound_method.loc9_3.2: <bound method> = bound_method %v.var, %specific_fn
 // CHECK:STDOUT:     %addr: @InitFromStructGeneric.%ptr (%ptr.955) = addr_of %v.var
 // CHECK:STDOUT:     %Class.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc9_3.2(%addr)
@@ -305,8 +305,8 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT:   %k.ref: %Class.elem.2d8 = name_ref k, @Class.%.loc5 [concrete = @Class.%.loc5]
 // CHECK:STDOUT:   %.loc15_11.1: ref %i32 = class_element_access %v.ref, element0
 // CHECK:STDOUT:   %.loc15_11.2: %i32 = bind_value %.loc15_11.1
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Class.as.Destroy.impl.Op.e3d
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Class.as.Destroy.impl.Op.e3d, @Class.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%Class.as.Destroy.impl.Op.specific_fn.19c]
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Class.as.Destroy.impl.Op.831
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Class.as.Destroy.impl.Op.831, @Class.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%Class.as.Destroy.impl.Op.specific_fn.213]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %Class.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.f7c = addr_of %v.var
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -327,11 +327,11 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Class => constants.%Class.fe1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.95a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d1e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type => constants.%Class.as.Destroy.impl.Op.type.acd
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op => constants.%Class.as.Destroy.impl.Op.5c0
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type => constants.%Class.as.Destroy.impl.Op.type.412
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op => constants.%Class.as.Destroy.impl.Op.9bc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%T) {
@@ -360,11 +360,11 @@ fn InitFromAdaptedSpecific(x: i32) -> i32 {
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%i32) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %Class => constants.%Class.247
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9fc
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ea6
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type => constants.%Class.as.Destroy.impl.Op.type.9d9
-// CHECK:STDOUT:   %Class.as.Destroy.impl.Op => constants.%Class.as.Destroy.impl.Op.e3d
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type => constants.%Class.as.Destroy.impl.Op.type.ce6
+// CHECK:STDOUT:   %Class.as.Destroy.impl.Op => constants.%Class.as.Destroy.impl.Op.831
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%i32) {
diff --git a/toolchain/check/testdata/class/generic/member_lookup.carbon b/toolchain/check/testdata/class/generic/member_lookup.carbon
index e5b5ca6f4cba..ce04d58f34d2 100644
--- a/toolchain/check/testdata/class/generic/member_lookup.carbon
+++ b/toolchain/check/testdata/class/generic/member_lookup.carbon
@@ -87,7 +87,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:   %Base.elem.9af: type = unbound_element_type %Base.370, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -100,7 +100,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:   %require_complete.97d: <witness> = require_complete_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %Derived.elem.8b3: type = unbound_element_type %Derived.85c, %Base.370 [symbolic]
 // CHECK:STDOUT:   %Derived.elem.6d2: type = unbound_element_type %Derived.85c, %T [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.fa7: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.4a0: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.178: type = ptr_type %Derived.85c [symbolic]
 // CHECK:STDOUT:   %pattern_type.520: type = pattern_type %ptr.178 [symbolic]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic]
@@ -232,7 +232,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_17.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -261,7 +261,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: generic impl @Derived.as.Destroy.impl(@Derived.%T.loc8_15.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived.85c)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic = %Derived.as.Destroy.impl.Op.type (constants.%Derived.as.Destroy.impl.Op.type)]
@@ -303,7 +303,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.b.f69 [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.eaf)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -337,7 +337,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived.85c [symbolic = @Derived.as.Destroy.impl.%Derived (constants.%Derived.85c)]
 // CHECK:STDOUT:     impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:     %complete_type.loc11_1.1: <witness> = complete_type_witness constants.%struct_type.base.d.37c [symbolic = %complete_type.loc11_1.2 (constants.%complete_type.8ad)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc11_1.1
 // CHECK:STDOUT:
@@ -445,7 +445,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -472,7 +472,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Derived => constants.%Derived.85c
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fa7
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl.Op(constants.%T) {
@@ -534,7 +534,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:   %Base.elem.9af: type = unbound_element_type %Base.370, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -547,7 +547,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:   %require_complete.97d: <witness> = require_complete_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %Derived.elem.8b3: type = unbound_element_type %Derived.85c, %Base.370 [symbolic]
 // CHECK:STDOUT:   %Derived.elem.6d2: type = unbound_element_type %Derived.85c, %T [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.fa7: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.4a0: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.178: type = ptr_type %Derived.85c [symbolic]
 // CHECK:STDOUT:   %pattern_type.520: type = pattern_type %ptr.178 [symbolic]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic]
@@ -680,7 +680,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_17.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -709,7 +709,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: generic impl @Derived.as.Destroy.impl(@Derived.%T.loc8_15.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived.85c)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic = %Derived.as.Destroy.impl.Op.type (constants.%Derived.as.Destroy.impl.Op.type)]
@@ -751,7 +751,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.b.f69 [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.eaf)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc6_1.1
 // CHECK:STDOUT:
@@ -786,7 +786,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived.85c [symbolic = @Derived.as.Destroy.impl.%Derived (constants.%Derived.85c)]
 // CHECK:STDOUT:     impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:     %complete_type.loc11_1.1: <witness> = complete_type_witness constants.%struct_type.base.d.37c [symbolic = %complete_type.loc11_1.2 (constants.%complete_type.8ad)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc11_1.1
 // CHECK:STDOUT:
@@ -880,7 +880,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -907,7 +907,7 @@ fn AccessMissingConcrete(x: Derived(i32)) -> i32 {
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Derived => constants.%Derived.85c
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fa7
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/class/generic/member_out_of_line.carbon b/toolchain/check/testdata/class/generic/member_out_of_line.carbon
index a36590c080e7..e917fa5df1b4 100644
--- a/toolchain/check/testdata/class/generic/member_out_of_line.carbon
+++ b/toolchain/check/testdata/class/generic/member_out_of_line.carbon
@@ -391,7 +391,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e41: <witness> = impl_witness @B.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.438: <witness> = impl_witness @B.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N) [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %ptr.762: type = ptr_type %B [symbolic]
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %ptr.762 [symbolic]
@@ -399,7 +399,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d93: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e1: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.ca9: type = ptr_type %A [symbolic]
 // CHECK:STDOUT:   %pattern_type.09b: type = pattern_type %ptr.ca9 [symbolic]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%T) [symbolic]
@@ -457,7 +457,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %N: @B.as.Destroy.impl.%T (%T) = bind_symbolic_name N, 1 [symbolic = %N (constants.%N)]
 // CHECK:STDOUT:   %B: type = class_type @B, @B(%T, %N) [symbolic = %B (constants.%B)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @B.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e41)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @B.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.438)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op, @B.as.Destroy.impl(%T, %N) [symbolic = %B.as.Destroy.impl.Op.type (constants.%B.as.Destroy.impl.Op.type)]
@@ -486,7 +486,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT: generic impl @A.as.Destroy.impl(@A.%T.loc4_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %A: type = class_type @A, @A(%T) [symbolic = %A (constants.%A)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7e1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%T) [symbolic = %A.as.Destroy.impl.Op.type (constants.%A.as.Destroy.impl.Op.type)]
@@ -532,7 +532,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A [symbolic = @A.as.Destroy.impl.%A (constants.%A)]
 // CHECK:STDOUT:     impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%T) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%T) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7e1)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -573,7 +573,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%B [symbolic = @B.as.Destroy.impl.%B (constants.%B)]
 // CHECK:STDOUT:     impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @B.as.Destroy.impl(constants.%T, constants.%N) [symbolic = @B.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.e41)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @B.as.Destroy.impl(constants.%T, constants.%N) [symbolic = @B.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.438)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -655,7 +655,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %N => constants.%N
 // CHECK:STDOUT:   %B => constants.%B
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e41
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.438
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @B.as.Destroy.impl.Op(constants.%T, constants.%N) {
@@ -669,7 +669,7 @@ fn Generic(T:! ()).WrongType() {}
 // CHECK:STDOUT: specific @A.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %A => constants.%A
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d93
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/class/generic/member_type.carbon b/toolchain/check/testdata/class/generic/member_type.carbon
index 22f130110a02..0bb540ad729d 100644
--- a/toolchain/check/testdata/class/generic/member_type.carbon
+++ b/toolchain/check/testdata/class/generic/member_type.carbon
@@ -71,18 +71,18 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %Inner.elem.310: type = unbound_element_type %Inner.51b, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.0c4: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.9c7: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.c82: type = ptr_type %Inner.51b [symbolic]
 // CHECK:STDOUT:   %pattern_type.822: type = pattern_type %ptr.c82 [symbolic]
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type.4f8: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.b36: %Inner.as.Destroy.impl.Op.type.4f8 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type.eea: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.310: %Inner.as.Destroy.impl.Op.type.eea = struct_value () [symbolic]
 // CHECK:STDOUT:   %struct_type.n.848: type = struct_type {.n: %T} [symbolic]
 // CHECK:STDOUT:   %complete_type.84b: <witness> = complete_type_witness %struct_type.n.848 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %pattern_type.253: type = pattern_type %Inner.51b [symbolic]
 // CHECK:STDOUT:   %Outer.F.type.2ee: type = fn_type @Outer.F, @Outer(%T) [symbolic]
 // CHECK:STDOUT:   %Outer.F.384: %Outer.F.type.2ee = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.a35: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7ee: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6ff: type = ptr_type %Outer.9d6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.07e: type = pattern_type %ptr.6ff [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic]
@@ -111,26 +111,26 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %Outer.F.specific_fn: <specific function> = specific_function %Outer.F.c88, @Outer.F(%i32) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.07c: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type.24a: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.ae2: %Inner.as.Destroy.impl.Op.type.24a = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cc9: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type.8d2: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.602: %Inner.as.Destroy.impl.Op.type.8d2 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.416: type = ptr_type %Inner.721 [concrete]
 // CHECK:STDOUT:   %pattern_type.00b: type = pattern_type %ptr.416 [concrete]
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Inner.as.Destroy.impl.Op.ae2, @Inner.as.Destroy.impl.Op(%i32) [concrete]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Inner.as.Destroy.impl.Op.602, @Inner.as.Destroy.impl.Op(%i32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -144,8 +144,8 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -175,14 +175,14 @@ fn Test() -> i32 {
 // CHECK:STDOUT: generic impl @Inner.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Inner: type = class_type @Inner, @Inner(%T) [symbolic = %Inner (constants.%Inner.51b)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.0c4)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9c7)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type.4f8)]
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: @Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.type (%Inner.as.Destroy.impl.Op.type.4f8) = struct_value () [symbolic = %Inner.as.Destroy.impl.Op (constants.%Inner.as.Destroy.impl.Op.b36)]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type.eea)]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: @Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.type (%Inner.as.Destroy.impl.Op.type.eea) = struct_value () [symbolic = %Inner.as.Destroy.impl.Op (constants.%Inner.as.Destroy.impl.Op.310)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @Inner.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %Inner.as.Destroy.impl.Op.decl: @Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.type (%Inner.as.Destroy.impl.Op.type.4f8) = fn_decl @Inner.as.Destroy.impl.Op [symbolic = @Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op (constants.%Inner.as.Destroy.impl.Op.b36)] {
+// CHECK:STDOUT:     %Inner.as.Destroy.impl.Op.decl: @Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.type (%Inner.as.Destroy.impl.Op.type.eea) = fn_decl @Inner.as.Destroy.impl.Op [symbolic = @Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op (constants.%Inner.as.Destroy.impl.Op.310)] {
 // CHECK:STDOUT:       %self.patt: @Inner.as.Destroy.impl.Op.%pattern_type (%pattern_type.822) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @Inner.as.Destroy.impl.Op.%pattern_type (%pattern_type.822) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc5_15.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -204,7 +204,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%T) [symbolic = %Outer (constants.%Outer.9d6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic = %Outer.as.Destroy.impl.Op.type (constants.%Outer.as.Destroy.impl.Op.type)]
@@ -257,7 +257,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -284,7 +284,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Inner.51b [symbolic = @Inner.as.Destroy.impl.%Inner (constants.%Inner.51b)]
 // CHECK:STDOUT:     impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.0c4)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9c7)]
 // CHECK:STDOUT:     %complete_type.loc7_3.1: <witness> = complete_type_witness constants.%struct_type.n.848 [symbolic = %complete_type.loc7_3.2 (constants.%complete_type.84b)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc7_3.1
 // CHECK:STDOUT:
@@ -356,7 +356,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %Outer.F.specific_fn: <specific function> = specific_function %F.ref, @Outer.F(constants.%i32) [concrete = constants.%Outer.F.specific_fn]
 // CHECK:STDOUT:   %.loc13_3: ref %Inner.721 = splice_block %c.var {}
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc13_42.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_42.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -378,8 +378,8 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %n.ref: %Inner.elem.6c2 = name_ref n, @Inner.%.loc6 [concrete = @Inner.%.loc6]
 // CHECK:STDOUT:   %.loc14_11.1: ref %i32 = class_element_access %c.ref, element0
 // CHECK:STDOUT:   %.loc14_11.2: %i32 = bind_value %.loc14_11.1
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%Inner.as.Destroy.impl.Op.ae2
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Inner.as.Destroy.impl.Op.ae2, @Inner.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%Inner.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%Inner.as.Destroy.impl.Op.602
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Inner.as.Destroy.impl.Op.602, @Inner.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%Inner.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_3: <bound method> = bound_method %c.var, %Inner.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.416 = addr_of %c.var
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc13_3(%addr)
@@ -408,7 +408,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Inner => constants.%Inner.51b
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.0c4
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9c7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%T) {
@@ -428,7 +428,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Outer => constants.%Outer.9d6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a35
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ee
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%T) {
@@ -472,11 +472,11 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl(constants.%i32) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %Inner => constants.%Inner.721
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.07c
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.cc9
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type => constants.%Inner.as.Destroy.impl.Op.type.24a
-// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op => constants.%Inner.as.Destroy.impl.Op.ae2
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type => constants.%Inner.as.Destroy.impl.Op.type.8d2
+// CHECK:STDOUT:   %Inner.as.Destroy.impl.Op => constants.%Inner.as.Destroy.impl.Op.602
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%i32) {
@@ -496,32 +496,32 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Outer.generic: %Outer.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Outer.9d6: type = class_type @Outer, @Outer(%T) [symbolic]
-// CHECK:STDOUT:   %Inner.type.392: type = facet_type <@Inner, @Inner(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.770: %Inner.type.392 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.ea1: type = facet_access_type %Self.770 [symbolic]
-// CHECK:STDOUT:   %pattern_type.81e: type = pattern_type %Self.as_type.ea1 [symbolic]
+// CHECK:STDOUT:   %Inner.type.f72: type = facet_type <@Inner, @Inner(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.6eb: %Inner.type.f72 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.750: type = facet_access_type %Self.6eb [symbolic]
+// CHECK:STDOUT:   %pattern_type.3f5: type = pattern_type %Self.as_type.750 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %Inner.F.type.0f3: type = fn_type @Inner.F, @Inner(%T) [symbolic]
 // CHECK:STDOUT:   %Inner.F.db9: %Inner.F.type.0f3 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Inner.assoc_type.115: type = assoc_entity_type @Inner, @Inner(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.95e: %Inner.assoc_type.115 = assoc_entity element0, @Inner.%Inner.F.decl [symbolic]
 // CHECK:STDOUT:   %C.390: type = class_type @C, @C(%T) [symbolic]
-// CHECK:STDOUT:   %require_complete.8fa: <witness> = require_complete_type %Inner.type.392 [symbolic]
-// CHECK:STDOUT:   %Inner.impl_witness.b15: <witness> = impl_witness @C.%Inner.impl_witness_table, @C.as.Inner.impl(%T) [symbolic]
+// CHECK:STDOUT:   %require_complete.fca: <witness> = require_complete_type %Inner.type.f72 [symbolic]
+// CHECK:STDOUT:   %Inner.impl_witness.f74: <witness> = impl_witness @C.%Inner.impl_witness_table, @C.as.Inner.impl(%T) [symbolic]
 // CHECK:STDOUT:   %pattern_type.e59: type = pattern_type %C.390 [symbolic]
-// CHECK:STDOUT:   %C.as.Inner.impl.F.type.77b: type = fn_type @C.as.Inner.impl.F, @C.as.Inner.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.Inner.impl.F.ed9: %C.as.Inner.impl.F.type.77b = struct_value () [symbolic]
-// CHECK:STDOUT:   %Inner.facet.9a3: %Inner.type.392 = facet_value %C.390, (%Inner.impl_witness.b15) [symbolic]
+// CHECK:STDOUT:   %C.as.Inner.impl.F.type.8dd: type = fn_type @C.as.Inner.impl.F, @C.as.Inner.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.Inner.impl.F.cdb: %C.as.Inner.impl.F.type.8dd = struct_value () [symbolic]
+// CHECK:STDOUT:   %Inner.facet.86c: %Inner.type.f72 = facet_value %C.390, (%Inner.impl_witness.f74) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.674: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.cdb: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.306: type = ptr_type %C.390 [symbolic]
 // CHECK:STDOUT:   %pattern_type.670: type = pattern_type %ptr.306 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.d66: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.0c5: %C.as.Destroy.impl.Op.type.d66 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.30c: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.cf8: %C.as.Destroy.impl.Op.type.30c = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a35: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7ee: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6ff: type = ptr_type %Outer.9d6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.07e: type = pattern_type %ptr.6ff [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic]
@@ -529,30 +529,30 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %require_complete.930: <witness> = require_complete_type %C.390 [symbolic]
 // CHECK:STDOUT:   %Inner.lookup_impl_witness: <witness> = lookup_impl_witness %C.390, @Inner, @Inner(%T) [symbolic]
-// CHECK:STDOUT:   %Inner.facet.c18: %Inner.type.392 = facet_value %C.390, (%Inner.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.692: type = fn_type_with_self_type %Inner.F.type.0f3, %Inner.facet.c18 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.681: %.692 = impl_witness_access %Inner.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0.681, @Inner.F(%T, %Inner.facet.c18) [symbolic]
+// CHECK:STDOUT:   %Inner.facet.03c: %Inner.type.f72 = facet_value %C.390, (%Inner.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.b0d: type = fn_type_with_self_type %Inner.F.type.0f3, %Inner.facet.03c [symbolic]
+// CHECK:STDOUT:   %impl.elem0.e82: %.b0d = impl_witness_access %Inner.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0.e82, @Inner.F(%T, %Inner.facet.03c) [symbolic]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %Outer.545: type = class_type @Outer, @Outer(%i32) [concrete]
-// CHECK:STDOUT:   %Inner.type.52d: type = facet_type <@Inner, @Inner(%i32)> [concrete]
+// CHECK:STDOUT:   %Inner.type.5af: type = facet_type <@Inner, @Inner(%i32)> [concrete]
 // CHECK:STDOUT:   %C.70f: type = class_type @C, @C(%i32) [concrete]
-// CHECK:STDOUT:   %Self.493: %Inner.type.52d = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.81c: %Inner.type.5af = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Inner.F.type.86e: type = fn_type @Inner.F, @Inner(%i32) [concrete]
 // CHECK:STDOUT:   %Inner.F.11d: %Inner.F.type.86e = struct_value () [concrete]
 // CHECK:STDOUT:   %Inner.assoc_type.215: type = assoc_entity_type @Inner, @Inner(%i32) [concrete]
 // CHECK:STDOUT:   %assoc0.e80: %Inner.assoc_type.215 = assoc_entity element0, @Inner.%Inner.F.decl [concrete]
-// CHECK:STDOUT:   %Inner.impl_witness.1dc: <witness> = impl_witness @D.%Inner.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Inner.impl_witness.299: <witness> = impl_witness @D.%Inner.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.510: type = pattern_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %D.as.Inner.impl.F.type: type = fn_type @D.as.Inner.impl.F [concrete]
 // CHECK:STDOUT:   %D.as.Inner.impl.F: %D.as.Inner.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Inner.facet.edc: %Inner.type.52d = facet_value %D, (%Inner.impl_witness.1dc) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Inner.facet.930: %Inner.type.5af = facet_value %D, (%Inner.impl_witness.299) [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -563,19 +563,19 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
 // CHECK:STDOUT:   %pattern_type.de9: type = pattern_type %C.70f [concrete]
 // CHECK:STDOUT:   %C.val: %C.70f = struct_value () [concrete]
-// CHECK:STDOUT:   %complete_type.9fa: <witness> = complete_type_witness %Inner.type.52d [concrete]
-// CHECK:STDOUT:   %Inner.impl_witness.47d: <witness> = impl_witness @C.%Inner.impl_witness_table, @C.as.Inner.impl(%i32) [concrete]
-// CHECK:STDOUT:   %C.as.Inner.impl.F.type.f11: type = fn_type @C.as.Inner.impl.F, @C.as.Inner.impl(%i32) [concrete]
-// CHECK:STDOUT:   %C.as.Inner.impl.F.e75: %C.as.Inner.impl.F.type.f11 = struct_value () [concrete]
-// CHECK:STDOUT:   %Inner.facet.840: %Inner.type.52d = facet_value %C.70f, (%Inner.impl_witness.47d) [concrete]
-// CHECK:STDOUT:   %.b10: type = fn_type_with_self_type %Inner.F.type.86e, %Inner.facet.840 [concrete]
-// CHECK:STDOUT:   %C.as.Inner.impl.F.specific_fn: <specific function> = specific_function %C.as.Inner.impl.F.e75, @C.as.Inner.impl.F(%i32) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.82e: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.97d: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.407: %C.as.Destroy.impl.Op.type.97d = struct_value () [concrete]
+// CHECK:STDOUT:   %complete_type.0f8: <witness> = complete_type_witness %Inner.type.5af [concrete]
+// CHECK:STDOUT:   %Inner.impl_witness.d39: <witness> = impl_witness @C.%Inner.impl_witness_table, @C.as.Inner.impl(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Inner.impl.F.type.786: type = fn_type @C.as.Inner.impl.F, @C.as.Inner.impl(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Inner.impl.F.15d: %C.as.Inner.impl.F.type.786 = struct_value () [concrete]
+// CHECK:STDOUT:   %Inner.facet.ddd: %Inner.type.5af = facet_value %C.70f, (%Inner.impl_witness.d39) [concrete]
+// CHECK:STDOUT:   %.9e1: type = fn_type_with_self_type %Inner.F.type.86e, %Inner.facet.ddd [concrete]
+// CHECK:STDOUT:   %C.as.Inner.impl.F.specific_fn: <specific function> = specific_function %C.as.Inner.impl.F.15d, @C.as.Inner.impl.F(%i32) [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ee5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.953: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.11c: %C.as.Destroy.impl.Op.type.953 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.18f: type = ptr_type %C.70f [concrete]
 // CHECK:STDOUT:   %pattern_type.7ba: type = pattern_type %ptr.18f [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.407, @C.as.Destroy.impl.Op(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.11c, @C.as.Destroy.impl.Op(%i32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -618,30 +618,30 @@ fn Test() -> i32 {
 // CHECK:STDOUT: generic interface @Inner(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.392)]
-// CHECK:STDOUT:   %Self.2: @Inner.%Inner.type (%Inner.type.392) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.770)]
+// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.f72)]
+// CHECK:STDOUT:   %Self.2: @Inner.%Inner.type (%Inner.type.f72) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.6eb)]
 // CHECK:STDOUT:   %Inner.F.type: type = fn_type @Inner.F, @Inner(%T) [symbolic = %Inner.F.type (constants.%Inner.F.type.0f3)]
 // CHECK:STDOUT:   %Inner.F: @Inner.%Inner.F.type (%Inner.F.type.0f3) = struct_value () [symbolic = %Inner.F (constants.%Inner.F.db9)]
 // CHECK:STDOUT:   %Inner.assoc_type: type = assoc_entity_type @Inner, @Inner(%T) [symbolic = %Inner.assoc_type (constants.%Inner.assoc_type.115)]
 // CHECK:STDOUT:   %assoc0.loc6_28.2: @Inner.%Inner.assoc_type (%Inner.assoc_type.115) = assoc_entity element0, %Inner.F.decl [symbolic = %assoc0.loc6_28.2 (constants.%assoc0.95e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Inner.%Inner.type (%Inner.type.392) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.770)]
+// CHECK:STDOUT:     %Self.1: @Inner.%Inner.type (%Inner.type.f72) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.6eb)]
 // CHECK:STDOUT:     %Inner.F.decl: @Inner.%Inner.F.type (%Inner.F.type.0f3) = fn_decl @Inner.F [symbolic = @Inner.%Inner.F (constants.%Inner.F.db9)] {
-// CHECK:STDOUT:       %self.patt: @Inner.F.%pattern_type.loc6_10 (%pattern_type.81e) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @Inner.F.%pattern_type.loc6_10 (%pattern_type.81e) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @Inner.F.%pattern_type.loc6_10 (%pattern_type.3f5) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @Inner.F.%pattern_type.loc6_10 (%pattern_type.3f5) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @Inner.F.%pattern_type.loc6_24 (%pattern_type.7dcd0a.1) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @Inner.F.%pattern_type.loc6_24 (%pattern_type.7dcd0a.1) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @Outer.%T.loc4_13.2 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self.param: @Inner.F.%Self.as_type.loc6_16.1 (%Self.as_type.ea1) = value_param call_param0
-// CHECK:STDOUT:       %.loc6_16.1: type = splice_block %.loc6_16.3 [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.ea1)] {
-// CHECK:STDOUT:         %.loc6_16.2: @Inner.F.%Inner.type (%Inner.type.392) = specific_constant @Inner.%Self.1, @Inner(constants.%T) [symbolic = %Self (constants.%Self.770)]
-// CHECK:STDOUT:         %Self.ref: @Inner.F.%Inner.type (%Inner.type.392) = name_ref Self, %.loc6_16.2 [symbolic = %Self (constants.%Self.770)]
-// CHECK:STDOUT:         %Self.as_type.loc6_16.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.ea1)]
-// CHECK:STDOUT:         %.loc6_16.3: type = converted %Self.ref, %Self.as_type.loc6_16.2 [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.ea1)]
+// CHECK:STDOUT:       %self.param: @Inner.F.%Self.as_type.loc6_16.1 (%Self.as_type.750) = value_param call_param0
+// CHECK:STDOUT:       %.loc6_16.1: type = splice_block %.loc6_16.3 [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.750)] {
+// CHECK:STDOUT:         %.loc6_16.2: @Inner.F.%Inner.type (%Inner.type.f72) = specific_constant @Inner.%Self.1, @Inner(constants.%T) [symbolic = %Self (constants.%Self.6eb)]
+// CHECK:STDOUT:         %Self.ref: @Inner.F.%Inner.type (%Inner.type.f72) = name_ref Self, %.loc6_16.2 [symbolic = %Self (constants.%Self.6eb)]
+// CHECK:STDOUT:         %Self.as_type.loc6_16.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.750)]
+// CHECK:STDOUT:         %.loc6_16.3: type = converted %Self.ref, %Self.as_type.loc6_16.2 [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.750)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @Inner.F.%Self.as_type.loc6_16.1 (%Self.as_type.ea1) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @Inner.F.%Self.as_type.loc6_16.1 (%Self.as_type.750) = bind_name self, %self.param
 // CHECK:STDOUT:       %return.param: ref @Inner.F.%T (%T) = out_param call_param1
 // CHECK:STDOUT:       %return: ref @Inner.F.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
@@ -658,16 +658,16 @@ fn Test() -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Inner.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.390)]
-// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.392)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Inner.type [symbolic = %require_complete (constants.%require_complete.8fa)]
-// CHECK:STDOUT:   %Inner.impl_witness: <witness> = impl_witness @C.%Inner.impl_witness_table, @C.as.Inner.impl(%T) [symbolic = %Inner.impl_witness (constants.%Inner.impl_witness.b15)]
+// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.f72)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Inner.type [symbolic = %require_complete (constants.%require_complete.fca)]
+// CHECK:STDOUT:   %Inner.impl_witness: <witness> = impl_witness @C.%Inner.impl_witness_table, @C.as.Inner.impl(%T) [symbolic = %Inner.impl_witness (constants.%Inner.impl_witness.f74)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Inner.impl.F.type: type = fn_type @C.as.Inner.impl.F, @C.as.Inner.impl(%T) [symbolic = %C.as.Inner.impl.F.type (constants.%C.as.Inner.impl.F.type.77b)]
-// CHECK:STDOUT:   %C.as.Inner.impl.F: @C.as.Inner.impl.%C.as.Inner.impl.F.type (%C.as.Inner.impl.F.type.77b) = struct_value () [symbolic = %C.as.Inner.impl.F (constants.%C.as.Inner.impl.F.ed9)]
+// CHECK:STDOUT:   %C.as.Inner.impl.F.type: type = fn_type @C.as.Inner.impl.F, @C.as.Inner.impl(%T) [symbolic = %C.as.Inner.impl.F.type (constants.%C.as.Inner.impl.F.type.8dd)]
+// CHECK:STDOUT:   %C.as.Inner.impl.F: @C.as.Inner.impl.%C.as.Inner.impl.F.type (%C.as.Inner.impl.F.type.8dd) = struct_value () [symbolic = %C.as.Inner.impl.F (constants.%C.as.Inner.impl.F.cdb)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %Self.ref as %Inner.ref {
-// CHECK:STDOUT:     %C.as.Inner.impl.F.decl: @C.as.Inner.impl.%C.as.Inner.impl.F.type (%C.as.Inner.impl.F.type.77b) = fn_decl @C.as.Inner.impl.F [symbolic = @C.as.Inner.impl.%C.as.Inner.impl.F (constants.%C.as.Inner.impl.F.ed9)] {
+// CHECK:STDOUT:     %C.as.Inner.impl.F.decl: @C.as.Inner.impl.%C.as.Inner.impl.F.type (%C.as.Inner.impl.F.type.8dd) = fn_decl @C.as.Inner.impl.F [symbolic = @C.as.Inner.impl.%C.as.Inner.impl.F (constants.%C.as.Inner.impl.F.cdb)] {
 // CHECK:STDOUT:       %self.patt: @C.as.Inner.impl.F.%pattern_type.loc11_12 (%pattern_type.e59) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.Inner.impl.F.%pattern_type.loc11_12 (%pattern_type.e59) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @C.as.Inner.impl.F.%pattern_type.loc11_23 (%pattern_type.7dcd0a.1) = return_slot_pattern [concrete]
@@ -696,14 +696,14 @@ fn Test() -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.390)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.674)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.cdb)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.d66)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.d66) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.0c5)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.30c)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.30c) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.cf8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.d66) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.0c5)] {
+// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.30c) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.cf8)] {
 // CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.670) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.670) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc9_11.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -725,7 +725,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%T) [symbolic = %Outer (constants.%Outer.9d6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic = %Outer.as.Destroy.impl.Op.type (constants.%Outer.as.Destroy.impl.Op.type)]
@@ -793,16 +793,16 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %T.loc4_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T.loc4_13.1)> [symbolic = %Inner.type (constants.%Inner.type.392)]
+// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T.loc4_13.1)> [symbolic = %Inner.type (constants.%Inner.type.f72)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T.loc4_13.1) [symbolic = %C (constants.%C.390)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %Inner.decl: type = interface_decl @Inner [symbolic = @Outer.%Inner.type (constants.%Inner.type.392)] {} {}
+// CHECK:STDOUT:     %Inner.decl: type = interface_decl @Inner [symbolic = @Outer.%Inner.type (constants.%Inner.type.f72)] {} {}
 // CHECK:STDOUT:     %C.decl: type = class_decl @C [symbolic = @Outer.%C (constants.%C.390)] {} {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -820,15 +820,15 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   class {
 // CHECK:STDOUT:     impl_decl @C.as.Inner.impl [concrete] {} {
 // CHECK:STDOUT:       %Self.ref: type = name_ref Self, constants.%C.390 [symbolic = %C (constants.%C.390)]
-// CHECK:STDOUT:       %.loc10: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%T) [symbolic = %Inner.type (constants.%Inner.type.392)]
-// CHECK:STDOUT:       %Inner.ref: type = name_ref Inner, %.loc10 [symbolic = %Inner.type (constants.%Inner.type.392)]
+// CHECK:STDOUT:       %.loc10: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%T) [symbolic = %Inner.type (constants.%Inner.type.f72)]
+// CHECK:STDOUT:       %Inner.ref: type = name_ref Inner, %.loc10 [symbolic = %Inner.type (constants.%Inner.type.f72)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %Inner.impl_witness_table = impl_witness_table (@C.as.Inner.impl.%C.as.Inner.impl.F.decl), @C.as.Inner.impl [concrete]
-// CHECK:STDOUT:     %Inner.impl_witness: <witness> = impl_witness %Inner.impl_witness_table, @C.as.Inner.impl(constants.%T) [symbolic = @C.as.Inner.impl.%Inner.impl_witness (constants.%Inner.impl_witness.b15)]
+// CHECK:STDOUT:     %Inner.impl_witness: <witness> = impl_witness %Inner.impl_witness_table, @C.as.Inner.impl(constants.%T) [symbolic = @C.as.Inner.impl.%Inner.impl_witness (constants.%Inner.impl_witness.f74)]
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.390 [symbolic = @C.as.Destroy.impl.%C (constants.%C.390)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.674)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.cdb)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -847,15 +847,15 @@ fn Test() -> i32 {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %Outer: type = class_type @Outer, @Outer(constants.%i32) [concrete = constants.%Outer.545]
-// CHECK:STDOUT:     %.loc17: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%i32) [concrete = constants.%Inner.type.52d]
-// CHECK:STDOUT:     %Inner.ref: type = name_ref Inner, %.loc17 [concrete = constants.%Inner.type.52d]
+// CHECK:STDOUT:     %.loc17: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%i32) [concrete = constants.%Inner.type.5af]
+// CHECK:STDOUT:     %Inner.ref: type = name_ref Inner, %.loc17 [concrete = constants.%Inner.type.5af]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Inner.impl_witness_table = impl_witness_table (@D.as.Inner.impl.%D.as.Inner.impl.F.decl), @D.as.Inner.impl [concrete]
-// CHECK:STDOUT:   %Inner.impl_witness: <witness> = impl_witness %Inner.impl_witness_table [concrete = constants.%Inner.impl_witness.1dc]
+// CHECK:STDOUT:   %Inner.impl_witness: <witness> = impl_witness %Inner.impl_witness_table [concrete = constants.%Inner.impl_witness.299]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -865,15 +865,15 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   .D = <poisoned>
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Inner.F(@Outer.%T.loc4_13.2: type, @Inner.%Self.1: @Inner.%Inner.type (%Inner.type.392)) {
+// CHECK:STDOUT: generic fn @Inner.F(@Outer.%T.loc4_13.2: type, @Inner.%Self.1: @Inner.%Inner.type (%Inner.type.f72)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.392)]
-// CHECK:STDOUT:   %Self: @Inner.F.%Inner.type (%Inner.type.392) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.770)]
-// CHECK:STDOUT:   %Self.as_type.loc6_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.ea1)]
-// CHECK:STDOUT:   %pattern_type.loc6_10: type = pattern_type %Self.as_type.loc6_16.1 [symbolic = %pattern_type.loc6_10 (constants.%pattern_type.81e)]
+// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.f72)]
+// CHECK:STDOUT:   %Self: @Inner.F.%Inner.type (%Inner.type.f72) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.6eb)]
+// CHECK:STDOUT:   %Self.as_type.loc6_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_16.1 (constants.%Self.as_type.750)]
+// CHECK:STDOUT:   %pattern_type.loc6_10: type = pattern_type %Self.as_type.loc6_16.1 [symbolic = %pattern_type.loc6_10 (constants.%pattern_type.3f5)]
 // CHECK:STDOUT:   %pattern_type.loc6_24: type = pattern_type %T [symbolic = %pattern_type.loc6_24 (constants.%pattern_type.7dcd0a.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Inner.F.%Self.as_type.loc6_16.1 (%Self.as_type.ea1)) -> @Inner.F.%T (%T);
+// CHECK:STDOUT:   fn(%self.param: @Inner.F.%Self.as_type.loc6_16.1 (%Self.as_type.750)) -> @Inner.F.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.as.Inner.impl.F(@Outer.%T.loc4_13.2: type) {
@@ -885,27 +885,27 @@ fn Test() -> i32 {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc11_23: <witness> = require_complete_type %T [symbolic = %require_complete.loc11_23 (constants.%require_complete.4ae)]
 // CHECK:STDOUT:   %require_complete.loc11_16: <witness> = require_complete_type %C [symbolic = %require_complete.loc11_16 (constants.%require_complete.930)]
-// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.392)]
-// CHECK:STDOUT:   %require_complete.loc11_48: <witness> = require_complete_type %Inner.type [symbolic = %require_complete.loc11_48 (constants.%require_complete.8fa)]
+// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%T)> [symbolic = %Inner.type (constants.%Inner.type.f72)]
+// CHECK:STDOUT:   %require_complete.loc11_48: <witness> = require_complete_type %Inner.type [symbolic = %require_complete.loc11_48 (constants.%require_complete.fca)]
 // CHECK:STDOUT:   %Inner.assoc_type: type = assoc_entity_type @Inner, @Inner(%T) [symbolic = %Inner.assoc_type (constants.%Inner.assoc_type.115)]
 // CHECK:STDOUT:   %assoc0: @C.as.Inner.impl.F.%Inner.assoc_type (%Inner.assoc_type.115) = assoc_entity element0, @Inner.%Inner.F.decl [symbolic = %assoc0 (constants.%assoc0.95e)]
 // CHECK:STDOUT:   %Inner.lookup_impl_witness: <witness> = lookup_impl_witness %C, @Inner, @Inner(%T) [symbolic = %Inner.lookup_impl_witness (constants.%Inner.lookup_impl_witness)]
 // CHECK:STDOUT:   %Inner.F.type: type = fn_type @Inner.F, @Inner(%T) [symbolic = %Inner.F.type (constants.%Inner.F.type.0f3)]
-// CHECK:STDOUT:   %Inner.facet: @C.as.Inner.impl.F.%Inner.type (%Inner.type.392) = facet_value %C, (%Inner.lookup_impl_witness) [symbolic = %Inner.facet (constants.%Inner.facet.c18)]
-// CHECK:STDOUT:   %.loc11_41: type = fn_type_with_self_type %Inner.F.type, %Inner.facet [symbolic = %.loc11_41 (constants.%.692)]
-// CHECK:STDOUT:   %impl.elem0.loc11_41.2: @C.as.Inner.impl.F.%.loc11_41 (%.692) = impl_witness_access %Inner.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_41.2 (constants.%impl.elem0.681)]
+// CHECK:STDOUT:   %Inner.facet: @C.as.Inner.impl.F.%Inner.type (%Inner.type.f72) = facet_value %C, (%Inner.lookup_impl_witness) [symbolic = %Inner.facet (constants.%Inner.facet.03c)]
+// CHECK:STDOUT:   %.loc11_41: type = fn_type_with_self_type %Inner.F.type, %Inner.facet [symbolic = %.loc11_41 (constants.%.b0d)]
+// CHECK:STDOUT:   %impl.elem0.loc11_41.2: @C.as.Inner.impl.F.%.loc11_41 (%.b0d) = impl_witness_access %Inner.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_41.2 (constants.%impl.elem0.e82)]
 // CHECK:STDOUT:   %specific_impl_fn.loc11_41.2: <specific function> = specific_impl_function %impl.elem0.loc11_41.2, @Inner.F(%T, %Inner.facet) [symbolic = %specific_impl_fn.loc11_41.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @C.as.Inner.impl.F.%C (%C.390)) -> @C.as.Inner.impl.F.%T (%T) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %self.ref: @C.as.Inner.impl.F.%C (%C.390) = name_ref self, %self
-// CHECK:STDOUT:     %.loc11_43: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%T) [symbolic = %Inner.type (constants.%Inner.type.392)]
-// CHECK:STDOUT:     %Inner.ref: type = name_ref Inner, %.loc11_43 [symbolic = %Inner.type (constants.%Inner.type.392)]
+// CHECK:STDOUT:     %.loc11_43: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%T) [symbolic = %Inner.type (constants.%Inner.type.f72)]
+// CHECK:STDOUT:     %Inner.ref: type = name_ref Inner, %.loc11_43 [symbolic = %Inner.type (constants.%Inner.type.f72)]
 // CHECK:STDOUT:     %.loc11_48: @C.as.Inner.impl.F.%Inner.assoc_type (%Inner.assoc_type.115) = specific_constant @Inner.%assoc0.loc6_28.1, @Inner(constants.%T) [symbolic = %assoc0 (constants.%assoc0.95e)]
 // CHECK:STDOUT:     %F.ref: @C.as.Inner.impl.F.%Inner.assoc_type (%Inner.assoc_type.115) = name_ref F, %.loc11_48 [symbolic = %assoc0 (constants.%assoc0.95e)]
-// CHECK:STDOUT:     %impl.elem0.loc11_41.1: @C.as.Inner.impl.F.%.loc11_41 (%.692) = impl_witness_access constants.%Inner.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_41.2 (constants.%impl.elem0.681)]
+// CHECK:STDOUT:     %impl.elem0.loc11_41.1: @C.as.Inner.impl.F.%.loc11_41 (%.b0d) = impl_witness_access constants.%Inner.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_41.2 (constants.%impl.elem0.e82)]
 // CHECK:STDOUT:     %bound_method.loc11_41: <bound method> = bound_method %self.ref, %impl.elem0.loc11_41.1
-// CHECK:STDOUT:     %specific_impl_fn.loc11_41.1: <specific function> = specific_impl_function %impl.elem0.loc11_41.1, @Inner.F(constants.%T, constants.%Inner.facet.c18) [symbolic = %specific_impl_fn.loc11_41.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %specific_impl_fn.loc11_41.1: <specific function> = specific_impl_function %impl.elem0.loc11_41.1, @Inner.F(constants.%T, constants.%Inner.facet.03c) [symbolic = %specific_impl_fn.loc11_41.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc11_52: <bound method> = bound_method %self.ref, %specific_impl_fn.loc11_41.1
 // CHECK:STDOUT:     %.loc11_52: init @C.as.Inner.impl.F.%T (%T) = call %bound_method.loc11_52(%self.ref)
 // CHECK:STDOUT:     %.loc11_53.1: @C.as.Inner.impl.F.%T (%T) = value_of_initializer %.loc11_52
@@ -965,11 +965,11 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %int_32.loc24: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc24: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   %Outer.loc24: type = class_type @Outer, @Outer(constants.%i32) [concrete = constants.%Outer.545]
-// CHECK:STDOUT:   %.loc24_23: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%i32) [concrete = constants.%Inner.type.52d]
-// CHECK:STDOUT:   %Inner.ref: type = name_ref Inner, %.loc24_23 [concrete = constants.%Inner.type.52d]
+// CHECK:STDOUT:   %.loc24_23: type = specific_constant @Outer.%Inner.decl, @Outer(constants.%i32) [concrete = constants.%Inner.type.5af]
+// CHECK:STDOUT:   %Inner.ref: type = name_ref Inner, %.loc24_23 [concrete = constants.%Inner.type.5af]
 // CHECK:STDOUT:   %.loc24_29: %Inner.assoc_type.215 = specific_constant @Inner.%assoc0.loc6_28.1, @Inner(constants.%i32) [concrete = constants.%assoc0.e80]
 // CHECK:STDOUT:   %F.ref: %Inner.assoc_type.215 = name_ref F, %.loc24_29 [concrete = constants.%assoc0.e80]
-// CHECK:STDOUT:   %impl.elem0: %.b10 = impl_witness_access constants.%Inner.impl_witness.47d, element0 [concrete = constants.%C.as.Inner.impl.F.e75]
+// CHECK:STDOUT:   %impl.elem0: %.9e1 = impl_witness_access constants.%Inner.impl_witness.d39, element0 [concrete = constants.%C.as.Inner.impl.F.15d]
 // CHECK:STDOUT:   %bound_method.loc24_11: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.Inner.impl.F(constants.%i32) [concrete = constants.%C.as.Inner.impl.F.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc24_33: <bound method> = bound_method %c.ref, %specific_fn
@@ -977,8 +977,8 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %C.as.Inner.impl.F.call: init %i32 = call %bound_method.loc24_33(%.loc24_10)
 // CHECK:STDOUT:   %.loc24_34.1: %i32 = value_of_initializer %C.as.Inner.impl.F.call
 // CHECK:STDOUT:   %.loc24_34.2: %i32 = converted %C.as.Inner.impl.F.call, %.loc24_34.1
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%C.as.Destroy.impl.Op.407
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.407, @C.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%C.as.Destroy.impl.Op.11c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.11c, @C.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc23: <bound method> = bound_method %c.var, %C.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.18f = addr_of %c.var
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc23(%addr)
@@ -989,27 +989,27 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %T.loc4_13.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.392
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.f72
 // CHECK:STDOUT:   %C => constants.%C.390
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner(constants.%T) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.392
-// CHECK:STDOUT:   %Self.2 => constants.%Self.770
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.f72
+// CHECK:STDOUT:   %Self.2 => constants.%Self.6eb
 // CHECK:STDOUT:   %Inner.F.type => constants.%Inner.F.type.0f3
 // CHECK:STDOUT:   %Inner.F => constants.%Inner.F.db9
 // CHECK:STDOUT:   %Inner.assoc_type => constants.%Inner.assoc_type.115
 // CHECK:STDOUT:   %assoc0.loc6_28.2 => constants.%assoc0.95e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F(constants.%T, constants.%Self.770) {
+// CHECK:STDOUT: specific @Inner.F(constants.%T, constants.%Self.6eb) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.392
-// CHECK:STDOUT:   %Self => constants.%Self.770
-// CHECK:STDOUT:   %Self.as_type.loc6_16.1 => constants.%Self.as_type.ea1
-// CHECK:STDOUT:   %pattern_type.loc6_10 => constants.%pattern_type.81e
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.f72
+// CHECK:STDOUT:   %Self => constants.%Self.6eb
+// CHECK:STDOUT:   %Self.as_type.loc6_16.1 => constants.%Self.as_type.750
+// CHECK:STDOUT:   %pattern_type.loc6_10 => constants.%pattern_type.3f5
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.7dcd0a.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1020,13 +1020,13 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @C.as.Inner.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.390
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.392
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.8fa
-// CHECK:STDOUT:   %Inner.impl_witness => constants.%Inner.impl_witness.b15
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.f72
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.fca
+// CHECK:STDOUT:   %Inner.impl_witness => constants.%Inner.impl_witness.f74
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Inner.impl.F.type => constants.%C.as.Inner.impl.F.type.77b
-// CHECK:STDOUT:   %C.as.Inner.impl.F => constants.%C.as.Inner.impl.F.ed9
+// CHECK:STDOUT:   %C.as.Inner.impl.F.type => constants.%C.as.Inner.impl.F.type.8dd
+// CHECK:STDOUT:   %C.as.Inner.impl.F => constants.%C.as.Inner.impl.F.cdb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Inner.impl.F(constants.%T) {
@@ -1036,10 +1036,10 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %pattern_type.loc11_23 => constants.%pattern_type.7dcd0a.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F(constants.%T, constants.%Inner.facet.9a3) {
+// CHECK:STDOUT: specific @Inner.F(constants.%T, constants.%Inner.facet.86c) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.392
-// CHECK:STDOUT:   %Self => constants.%Inner.facet.9a3
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.f72
+// CHECK:STDOUT:   %Self => constants.%Inner.facet.86c
 // CHECK:STDOUT:   %Self.as_type.loc6_16.1 => constants.%C.390
 // CHECK:STDOUT:   %pattern_type.loc6_10 => constants.%pattern_type.e59
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.7dcd0a.1
@@ -1048,7 +1048,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.390
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.674
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.cdb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -1061,7 +1061,7 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Outer => constants.%Outer.9d6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a35
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ee
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%T) {
@@ -1071,10 +1071,10 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.07e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F(constants.%T, constants.%Inner.facet.c18) {
+// CHECK:STDOUT: specific @Inner.F(constants.%T, constants.%Inner.facet.03c) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.392
-// CHECK:STDOUT:   %Self => constants.%Inner.facet.c18
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.f72
+// CHECK:STDOUT:   %Self => constants.%Inner.facet.03c
 // CHECK:STDOUT:   %Self.as_type.loc6_16.1 => constants.%C.390
 // CHECK:STDOUT:   %pattern_type.loc6_10 => constants.%pattern_type.e59
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.7dcd0a.1
@@ -1084,15 +1084,15 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %T.loc4_13.1 => constants.%i32
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.52d
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.5af
 // CHECK:STDOUT:   %C => constants.%C.70f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner(constants.%i32) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T => constants.%i32
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.52d
-// CHECK:STDOUT:   %Self.2 => constants.%Self.493
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.5af
+// CHECK:STDOUT:   %Self.2 => constants.%Self.81c
 // CHECK:STDOUT:   %Inner.F.type => constants.%Inner.F.type.86e
 // CHECK:STDOUT:   %Inner.F => constants.%Inner.F.11d
 // CHECK:STDOUT:   %Inner.assoc_type => constants.%Inner.assoc_type.215
@@ -1103,10 +1103,10 @@ fn Test() -> i32 {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F(constants.%i32, constants.%Inner.facet.edc) {
+// CHECK:STDOUT: specific @Inner.F(constants.%i32, constants.%Inner.facet.930) {
 // CHECK:STDOUT:   %T => constants.%i32
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.52d
-// CHECK:STDOUT:   %Self => constants.%Inner.facet.edc
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.5af
+// CHECK:STDOUT:   %Self => constants.%Inner.facet.930
 // CHECK:STDOUT:   %Self.as_type.loc6_16.1 => constants.%D
 // CHECK:STDOUT:   %pattern_type.loc6_10 => constants.%pattern_type.510
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.7ce
@@ -1115,13 +1115,13 @@ fn Test() -> i32 {
 // CHECK:STDOUT: specific @C.as.Inner.impl(constants.%i32) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %C => constants.%C.70f
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.52d
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.9fa
-// CHECK:STDOUT:   %Inner.impl_witness => constants.%Inner.impl_witness.47d
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.5af
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.0f8
+// CHECK:STDOUT:   %Inner.impl_witness => constants.%Inner.impl_witness.d39
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Inner.impl.F.type => constants.%C.as.Inner.impl.F.type.f11
-// CHECK:STDOUT:   %C.as.Inner.impl.F => constants.%C.as.Inner.impl.F.e75
+// CHECK:STDOUT:   %C.as.Inner.impl.F.type => constants.%C.as.Inner.impl.F.type.786
+// CHECK:STDOUT:   %C.as.Inner.impl.F => constants.%C.as.Inner.impl.F.15d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Inner.impl.F(constants.%i32) {
@@ -1133,26 +1133,26 @@ fn Test() -> i32 {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc11_23 => constants.%complete_type.f8a
 // CHECK:STDOUT:   %require_complete.loc11_16 => constants.%complete_type.357
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.52d
-// CHECK:STDOUT:   %require_complete.loc11_48 => constants.%complete_type.9fa
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.5af
+// CHECK:STDOUT:   %require_complete.loc11_48 => constants.%complete_type.0f8
 // CHECK:STDOUT:   %Inner.assoc_type => constants.%Inner.assoc_type.215
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.e80
-// CHECK:STDOUT:   %Inner.lookup_impl_witness => constants.%Inner.impl_witness.47d
+// CHECK:STDOUT:   %Inner.lookup_impl_witness => constants.%Inner.impl_witness.d39
 // CHECK:STDOUT:   %Inner.F.type => constants.%Inner.F.type.86e
-// CHECK:STDOUT:   %Inner.facet => constants.%Inner.facet.840
-// CHECK:STDOUT:   %.loc11_41 => constants.%.b10
-// CHECK:STDOUT:   %impl.elem0.loc11_41.2 => constants.%C.as.Inner.impl.F.e75
+// CHECK:STDOUT:   %Inner.facet => constants.%Inner.facet.ddd
+// CHECK:STDOUT:   %.loc11_41 => constants.%.9e1
+// CHECK:STDOUT:   %impl.elem0.loc11_41.2 => constants.%C.as.Inner.impl.F.15d
 // CHECK:STDOUT:   %specific_impl_fn.loc11_41.2 => constants.%C.as.Inner.impl.F.specific_fn
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%i32) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %C => constants.%C.70f
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.82e
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ee5
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.97d
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.407
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.953
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.11c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%i32) {
@@ -1162,10 +1162,10 @@ fn Test() -> i32 {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7ba
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F(constants.%i32, constants.%Inner.facet.840) {
+// CHECK:STDOUT: specific @Inner.F(constants.%i32, constants.%Inner.facet.ddd) {
 // CHECK:STDOUT:   %T => constants.%i32
-// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.52d
-// CHECK:STDOUT:   %Self => constants.%Inner.facet.840
+// CHECK:STDOUT:   %Inner.type => constants.%Inner.type.5af
+// CHECK:STDOUT:   %Self => constants.%Inner.facet.ddd
 // CHECK:STDOUT:   %Self.as_type.loc6_16.1 => constants.%C.70f
 // CHECK:STDOUT:   %pattern_type.loc6_10 => constants.%pattern_type.de9
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.7ce
diff --git a/toolchain/check/testdata/class/generic/method_deduce.carbon b/toolchain/check/testdata/class/generic/method_deduce.carbon
index 4ddea7dd8e5a..a490b0bdfc2c 100644
--- a/toolchain/check/testdata/class/generic/method_deduce.carbon
+++ b/toolchain/check/testdata/class/generic/method_deduce.carbon
@@ -34,7 +34,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -43,7 +43,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -63,7 +63,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %Class.GetNoDeduce.type.766: type = fn_type @Class.GetNoDeduce, @Class(%T) [symbolic]
 // CHECK:STDOUT:   %Class.GetNoDeduce.c9a: %Class.GetNoDeduce.type.766 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.95a: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.d1e: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.955: type = ptr_type %Class.fe1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %ptr.955 [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic]
@@ -195,7 +195,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT: generic impl @Class.as.Destroy.impl(@Class.%T.loc18_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%T) [symbolic = %Class (constants.%Class.fe1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
@@ -225,7 +225,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -237,7 +237,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -291,7 +291,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class.fe1 [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class.fe1)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -443,7 +443,7 @@ fn CallGenericMethodWithNonDeducedParam(c: Class(A)) -> (A, B) {
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Class => constants.%Class.fe1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.95a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d1e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/class/generic/redeclare.carbon b/toolchain/check/testdata/class/generic/redeclare.carbon
index 982147452601..f798c777af7c 100644
--- a/toolchain/check/testdata/class/generic/redeclare.carbon
+++ b/toolchain/check/testdata/class/generic/redeclare.carbon
@@ -349,7 +349,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -368,7 +368,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %B.type.844c0f.2: type = generic_class_type @B.loc14 [concrete]
 // CHECK:STDOUT:   %B.generic.ba299b.2: %B.type.844c0f.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %B.828: type = class_type @B.loc14, @B.loc14(%T, %N.f22) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.33b: <witness> = impl_witness @B.loc14.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N.f22) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.291: <witness> = impl_witness @B.loc14.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N.f22) [symbolic]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %ptr.9e8: type = ptr_type %B.828 [symbolic]
 // CHECK:STDOUT:   %pattern_type.a6d: type = pattern_type %ptr.9e8 [symbolic]
@@ -436,7 +436,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %N: @B.as.Destroy.impl.%T (%T) = bind_symbolic_name N, 1 [symbolic = %N (constants.%N.f22)]
 // CHECK:STDOUT:   %B: type = class_type @B.loc14, @B.loc14(%T, %N) [symbolic = %B (constants.%B.828)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @B.loc14.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.33b)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @B.loc14.%Destroy.impl_witness_table, @B.as.Destroy.impl(%T, %N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.291)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op, @B.as.Destroy.impl(%T, %N) [symbolic = %B.as.Destroy.impl.Op.type (constants.%B.as.Destroy.impl.Op.type)]
@@ -466,7 +466,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -492,7 +492,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%B.828 [symbolic = @B.as.Destroy.impl.%B (constants.%B.828)]
 // CHECK:STDOUT:     impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @B.as.Destroy.impl(constants.%T, constants.%N.f22) [symbolic = @B.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.33b)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @B.as.Destroy.impl(constants.%T, constants.%N.f22) [symbolic = @B.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.291)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -529,7 +529,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %N => constants.%N.f22
 // CHECK:STDOUT:   %B => constants.%B.828
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.33b
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.291
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @B.as.Destroy.impl.Op(constants.%T, constants.%N.f22) {
@@ -546,7 +546,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -563,7 +563,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %C.type.e6e560.2: type = generic_class_type @C.loc14 [concrete]
 // CHECK:STDOUT:   %C.generic.965b12.2: %C.type.e6e560.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %C.3d8: type = class_type @C.loc14, @C.loc14(%T, %U) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.f90: <witness> = impl_witness @C.loc14.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.36e: <witness> = impl_witness @C.loc14.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %ptr.8f5: type = ptr_type %C.3d8 [symbolic]
 // CHECK:STDOUT:   %pattern_type.d5b: type = pattern_type %ptr.8f5 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T, %U) [symbolic]
@@ -627,7 +627,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %U: %A = bind_symbolic_name U, 1 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %C: type = class_type @C.loc14, @C.loc14(%T, %U) [symbolic = %C (constants.%C.3d8)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.loc14.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.f90)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.loc14.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.36e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T, %U) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -657,7 +657,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -681,7 +681,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.3d8 [symbolic = @C.as.Destroy.impl.%C (constants.%C.3d8)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.f90)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.36e)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -717,7 +717,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %C => constants.%C.3d8
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.f90
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.36e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T, constants.%U) {
@@ -734,7 +734,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -751,7 +751,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %D.type.bbd080.2: type = generic_class_type @D.loc14 [concrete]
 // CHECK:STDOUT:   %D.generic.4e2319.2: %D.type.bbd080.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %D.384: type = class_type @D.loc14, @D.loc14(%T.9e6) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.7b8: <witness> = impl_witness @D.loc14.%Destroy.impl_witness_table, @D.as.Destroy.impl(%T.9e6) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.bb0: <witness> = impl_witness @D.loc14.%Destroy.impl_witness_table, @D.as.Destroy.impl(%T.9e6) [symbolic]
 // CHECK:STDOUT:   %ptr.988: type = ptr_type %D.384 [symbolic]
 // CHECK:STDOUT:   %pattern_type.146: type = pattern_type %ptr.988 [symbolic]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%T.9e6) [symbolic]
@@ -811,7 +811,7 @@ class E(U:! type) {}
 // CHECK:STDOUT: generic impl @D.as.Destroy.impl(@D.loc14.%T.loc14_9.2: %A) {
 // CHECK:STDOUT:   %T: %A = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.9e6)]
 // CHECK:STDOUT:   %D: type = class_type @D.loc14, @D.loc14(%T) [symbolic = %D (constants.%D.384)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @D.loc14.%Destroy.impl_witness_table, @D.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7b8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @D.loc14.%Destroy.impl_witness_table, @D.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.bb0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%T) [symbolic = %D.as.Destroy.impl.Op.type (constants.%D.as.Destroy.impl.Op.type)]
@@ -841,7 +841,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -864,7 +864,7 @@ class E(U:! type) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D.384 [symbolic = @D.as.Destroy.impl.%D (constants.%D.384)]
 // CHECK:STDOUT:     impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @D.as.Destroy.impl(constants.%T.9e6) [symbolic = @D.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7b8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @D.as.Destroy.impl(constants.%T.9e6) [symbolic = @D.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.bb0)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -897,7 +897,7 @@ class E(U:! type) {}
 // CHECK:STDOUT: specific @D.as.Destroy.impl(constants.%T.9e6) {
 // CHECK:STDOUT:   %T => constants.%T.9e6
 // CHECK:STDOUT:   %D => constants.%D.384
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7b8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.bb0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @D.as.Destroy.impl.Op(constants.%T.9e6) {
diff --git a/toolchain/check/testdata/class/generic/self.carbon b/toolchain/check/testdata/class/generic/self.carbon
index 9e0781a94d53..fd3d89449ebf 100644
--- a/toolchain/check/testdata/class/generic/self.carbon
+++ b/toolchain/check/testdata/class/generic/self.carbon
@@ -43,19 +43,19 @@ class Class(T:! type) {
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.95a: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.d1e: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.955: type = ptr_type %Class [symbolic]
 // CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %ptr.955 [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op: %Class.as.Destroy.impl.Op.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Class, (%Destroy.impl_witness.95a) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Class, (%Destroy.impl_witness.d1e) [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %require_complete.4f8: <witness> = require_complete_type %Class [symbolic]
 // CHECK:STDOUT:   %Class.val: %Class = struct_value () [symbolic]
 // CHECK:STDOUT:   %Class.MakeSelf.specific_fn: <specific function> = specific_function %Class.MakeSelf, @Class.MakeSelf(%T) [symbolic]
 // CHECK:STDOUT:   %Class.MakeClass.specific_fn: <specific function> = specific_function %Class.MakeClass, @Class.MakeClass(%T) [symbolic]
-// CHECK:STDOUT:   %.02c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [symbolic]
+// CHECK:STDOUT:   %.0e5: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Class.as.Destroy.impl.Op, @Class.as.Destroy.impl.Op(%T) [symbolic]
 // CHECK:STDOUT:   %require_complete.2ae: <witness> = require_complete_type %ptr.955 [symbolic]
 // CHECK:STDOUT: }
@@ -86,7 +86,7 @@ class Class(T:! type) {
 // CHECK:STDOUT: generic impl @Class.as.Destroy.impl(@Class.%T.loc15_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%T) [symbolic = %Class (constants.%Class)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
@@ -147,7 +147,7 @@ class Class(T:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%T) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -209,9 +209,9 @@ class Class(T:! type) {
 // CHECK:STDOUT:   %Class.MakeClass.type: type = fn_type @Class.MakeClass, @Class(%T) [symbolic = %Class.MakeClass.type (constants.%Class.MakeClass.type)]
 // CHECK:STDOUT:   %Class.MakeClass: @Class.F.%Class.MakeClass.type (%Class.MakeClass.type) = struct_value () [symbolic = %Class.MakeClass (constants.%Class.MakeClass)]
 // CHECK:STDOUT:   %Class.MakeClass.specific_fn.loc22_19.2: <specific function> = specific_function %Class.MakeClass, @Class.MakeClass(%T) [symbolic = %Class.MakeClass.specific_fn.loc22_19.2 (constants.%Class.MakeClass.specific_fn)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Class.loc21_19.2, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet)]
-// CHECK:STDOUT:   %.loc22_5.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc22_5.2 (constants.%.02c)]
+// CHECK:STDOUT:   %.loc22_5.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc22_5.2 (constants.%.0e5)]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%T) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op: @Class.F.%Class.as.Destroy.impl.Op.type (%Class.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op)]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Class.as.Destroy.impl.Op, @Class.as.Destroy.impl.Op(%T) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn)]
@@ -253,13 +253,13 @@ class Class(T:! type) {
 // CHECK:STDOUT:       %Self.ref: type = name_ref Self, %.loc22_12.2 [symbolic = %Class.loc21_19.2 (constants.%Class)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %s: ref @Class.F.%Class.loc21_19.2 (%Class) = bind_name s, %s.var
-// CHECK:STDOUT:     %impl.elem0.loc22: @Class.F.%.loc22_5.2 (%.02c) = impl_witness_access constants.%Destroy.impl_witness.95a, element0 [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op)]
+// CHECK:STDOUT:     %impl.elem0.loc22: @Class.F.%.loc22_5.2 (%.0e5) = impl_witness_access constants.%Destroy.impl_witness.d1e, element0 [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op)]
 // CHECK:STDOUT:     %bound_method.loc22_5.1: <bound method> = bound_method %s.var, %impl.elem0.loc22
 // CHECK:STDOUT:     %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Class.as.Destroy.impl.Op(constants.%T) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn)]
 // CHECK:STDOUT:     %bound_method.loc22_5.2: <bound method> = bound_method %s.var, %specific_fn.loc22
 // CHECK:STDOUT:     %addr.loc22: @Class.F.%ptr (%ptr.955) = addr_of %s.var
 // CHECK:STDOUT:     %Class.as.Destroy.impl.Op.call.loc22: init %empty_tuple.type = call %bound_method.loc22_5.2(%addr.loc22)
-// CHECK:STDOUT:     %impl.elem0.loc21: @Class.F.%.loc22_5.2 (%.02c) = impl_witness_access constants.%Destroy.impl_witness.95a, element0 [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op)]
+// CHECK:STDOUT:     %impl.elem0.loc21: @Class.F.%.loc22_5.2 (%.0e5) = impl_witness_access constants.%Destroy.impl_witness.d1e, element0 [symbolic = %Class.as.Destroy.impl.Op (constants.%Class.as.Destroy.impl.Op)]
 // CHECK:STDOUT:     %bound_method.loc21_5.1: <bound method> = bound_method %c.var, %impl.elem0.loc21
 // CHECK:STDOUT:     %specific_fn.loc21: <specific function> = specific_function %impl.elem0.loc21, @Class.as.Destroy.impl.Op(constants.%T) [symbolic = %Class.as.Destroy.impl.Op.specific_fn (constants.%Class.as.Destroy.impl.Op.specific_fn)]
 // CHECK:STDOUT:     %bound_method.loc21_5.2: <bound method> = bound_method %c.var, %specific_fn.loc21
@@ -317,7 +317,7 @@ class Class(T:! type) {
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Class => constants.%Class
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.95a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d1e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type => constants.%Class.as.Destroy.impl.Op.type
diff --git a/toolchain/check/testdata/class/generic/stringify.carbon b/toolchain/check/testdata/class/generic/stringify.carbon
index 0a07fdfc1704..f3a57b1f155f 100644
--- a/toolchain/check/testdata/class/generic/stringify.carbon
+++ b/toolchain/check/testdata/class/generic/stringify.carbon
@@ -98,7 +98,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %NoParams: type = class_type @NoParams [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c82: <witness> = impl_witness @NoParams.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7d1: <witness> = impl_witness @NoParams.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4c4: type = ptr_type %NoParams [concrete]
 // CHECK:STDOUT:   %pattern_type.105: type = pattern_type %ptr.4c4 [concrete]
 // CHECK:STDOUT:   %NoParams.as.Destroy.impl.Op.type: type = fn_type @NoParams.as.Destroy.impl.Op [concrete]
@@ -108,7 +108,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %EmptyParams.type: type = generic_class_type @EmptyParams [concrete]
 // CHECK:STDOUT:   %EmptyParams.generic: %EmptyParams.type = struct_value () [concrete]
 // CHECK:STDOUT:   %EmptyParams: type = class_type @EmptyParams [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.078: <witness> = impl_witness @EmptyParams.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.606: <witness> = impl_witness @EmptyParams.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.3ae: type = ptr_type %EmptyParams [concrete]
 // CHECK:STDOUT:   %pattern_type.73b: type = pattern_type %ptr.3ae [concrete]
 // CHECK:STDOUT:   %EmptyParams.as.Destroy.impl.Op.type: type = fn_type @EmptyParams.as.Destroy.impl.Op [concrete]
@@ -196,7 +196,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%NoParams [concrete = constants.%NoParams]
 // CHECK:STDOUT:   impl_decl @NoParams.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@NoParams.as.Destroy.impl.%NoParams.as.Destroy.impl.Op.decl), @NoParams.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c82]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7d1]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -208,7 +208,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%EmptyParams [concrete = constants.%EmptyParams]
 // CHECK:STDOUT:   impl_decl @EmptyParams.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@EmptyParams.as.Destroy.impl.%EmptyParams.as.Destroy.impl.Op.decl), @EmptyParams.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.078]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.606]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -243,14 +243,14 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %Inner.c71: type = class_type @Inner, @Inner(%T, %U) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.de8: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.647: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %ptr.276: type = ptr_type %Inner.c71 [symbolic]
 // CHECK:STDOUT:   %pattern_type.01f: type = pattern_type %ptr.276 [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a35: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7ee: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6ff: type = ptr_type %Outer.9d6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.07e: type = pattern_type %ptr.6ff [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic]
@@ -338,7 +338,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 1 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %Inner: type = class_type @Inner, @Inner(%T, %U) [symbolic = %Inner (constants.%Inner.c71)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.de8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.647)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type)]
@@ -367,7 +367,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%T) [symbolic = %Outer (constants.%Outer.9d6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic = %Outer.as.Destroy.impl.Op.type (constants.%Outer.as.Destroy.impl.Op.type)]
@@ -410,7 +410,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -429,7 +429,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Inner.c71 [symbolic = @Inner.as.Destroy.impl.%Inner (constants.%Inner.c71)]
 // CHECK:STDOUT:     impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.de8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.647)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -481,7 +481,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %Inner => constants.%Inner.c71
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.de8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.647
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%T, constants.%U) {
@@ -495,7 +495,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Outer => constants.%Outer.9d6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a35
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ee
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%T) {
@@ -535,7 +535,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %C.506: type = class_type @C, @C(%N.51e) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.1ba: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.2a5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N.51e) [symbolic]
 // CHECK:STDOUT:   %ptr.128: type = ptr_type %C.506 [symbolic]
 // CHECK:STDOUT:   %pattern_type.d64: type = pattern_type %ptr.128 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N.51e) [symbolic]
@@ -545,18 +545,18 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %int_123.fff: Core.IntLiteral = int_value 123 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_123.f7f: %i32 = int_value 123 [concrete]
 // CHECK:STDOUT:   %C.4c3: type = class_type @C, @C(%int_123.f7f) [concrete]
@@ -574,8 +574,8 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -603,7 +603,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %.loc13_13.1: type = splice_block %C [concrete = constants.%C.4c3] {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, %C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_123: Core.IntLiteral = int_value 123 [concrete = constants.%int_123.fff]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc13_13.1: <bound method> = bound_method %int_123, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc13_13.2: <bound method> = bound_method %int_123, %specific_fn [concrete = constants.%bound_method]
@@ -618,7 +618,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%N.loc4_9.2: %i32) {
 // CHECK:STDOUT:   %N: %i32 = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.51e)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%N) [symbolic = %C (constants.%C.506)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -653,7 +653,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.506 [symbolic = @C.as.Destroy.impl.%C (constants.%C.506)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%N.51e) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%N.51e) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -688,7 +688,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%N.51e) {
 // CHECK:STDOUT:   %N => constants.%N.51e
 // CHECK:STDOUT:   %C => constants.%C.506
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1ba
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2a5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%N.51e) {
@@ -715,7 +715,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %D.elem: type = unbound_element_type %D, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -728,7 +728,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %E.type: type = generic_class_type @E [concrete]
 // CHECK:STDOUT:   %E.generic: %E.type = struct_value () [concrete]
 // CHECK:STDOUT:   %E: type = class_type @E, @E(%F) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.a79: <witness> = impl_witness @E.%Destroy.impl_witness_table, @E.as.Destroy.impl(%F) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.d0d: <witness> = impl_witness @E.%Destroy.impl_witness_table, @E.as.Destroy.impl(%F) [symbolic]
 // CHECK:STDOUT:   %ptr.4e0: type = ptr_type %E [symbolic]
 // CHECK:STDOUT:   %pattern_type.72c: type = pattern_type %ptr.4e0 [symbolic]
 // CHECK:STDOUT:   %E.as.Destroy.impl.Op.type: type = fn_type @E.as.Destroy.impl.Op, @E.as.Destroy.impl(%F) [symbolic]
@@ -740,31 +740,31 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %D.val.413: %D = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %D.val.835: %D = struct_value (%int_3.822, %int_4.940) [concrete]
 // CHECK:STDOUT: }
@@ -780,8 +780,8 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -812,19 +812,19 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc25_25.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
-// CHECK:STDOUT:     %impl.elem0.loc25_25.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc25_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc25_25.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:     %impl.elem0.loc25_25.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc25_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc25_25.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:     %specific_fn.loc25_25.1: <specific function> = specific_function %impl.elem0.loc25_25.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc25_25.2: <bound method> = bound_method %int_1, %specific_fn.loc25_25.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:     %bound_method.loc25_25.2: <bound method> = bound_method %int_1, %specific_fn.loc25_25.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_25.1: init %i32 = call %bound_method.loc25_25.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc25_25.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_25.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc25_25.3: ref %D = temporary_storage
 // CHECK:STDOUT:     %.loc25_25.4: ref %i32 = class_element_access %.loc25_25.3, element0
 // CHECK:STDOUT:     %.loc25_25.5: init %i32 = initialize_from %.loc25_25.2 to %.loc25_25.4 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:     %impl.elem0.loc25_25.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc25_25.3: <bound method> = bound_method %int_2, %impl.elem0.loc25_25.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:     %impl.elem0.loc25_25.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc25_25.3: <bound method> = bound_method %int_2, %impl.elem0.loc25_25.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:     %specific_fn.loc25_25.2: <specific function> = specific_function %impl.elem0.loc25_25.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc25_25.4: <bound method> = bound_method %int_2, %specific_fn.loc25_25.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc25_25.4: <bound method> = bound_method %int_2, %specific_fn.loc25_25.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_25.2: init %i32 = call %bound_method.loc25_25.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc25_25.6: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_25.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc25_25.7: ref %i32 = class_element_access %.loc25_25.3, element1
@@ -856,7 +856,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT: generic impl @E.as.Destroy.impl(@E.%F.loc9_9.2: %D) {
 // CHECK:STDOUT:   %F: %D = bind_symbolic_name F, 0 [symbolic = %F (constants.%F)]
 // CHECK:STDOUT:   %E: type = class_type @E, @E(%F) [symbolic = %E (constants.%E)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @E.%Destroy.impl_witness_table, @E.as.Destroy.impl(%F) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a79)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @E.%Destroy.impl_witness_table, @E.as.Destroy.impl(%F) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d0d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %E.as.Destroy.impl.Op.type: type = fn_type @E.as.Destroy.impl.Op, @E.as.Destroy.impl(%F) [symbolic = %E.as.Destroy.impl.Op.type (constants.%E.as.Destroy.impl.Op.type)]
@@ -892,7 +892,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -911,7 +911,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%E [symbolic = @E.as.Destroy.impl.%E (constants.%E)]
 // CHECK:STDOUT:     impl_decl @E.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@E.as.Destroy.impl.%E.as.Destroy.impl.Op.decl), @E.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @E.as.Destroy.impl(constants.%F) [symbolic = @E.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a79)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @E.as.Destroy.impl(constants.%F) [symbolic = @E.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d0d)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -941,19 +941,19 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
 // CHECK:STDOUT:   %.loc25_53.1: %struct_type.a.b.cfd = struct_literal (%int_3, %int_4)
 // CHECK:STDOUT:   %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:   %impl.elem0.loc25_53.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc25_53.1: <bound method> = bound_method %int_3, %impl.elem0.loc25_53.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc25_53.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc25_53.1: <bound method> = bound_method %int_3, %impl.elem0.loc25_53.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc25_53.1: <specific function> = specific_function %impl.elem0.loc25_53.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc25_53.2: <bound method> = bound_method %int_3, %specific_fn.loc25_53.1 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc25_53.2: <bound method> = bound_method %int_3, %specific_fn.loc25_53.1 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_53.1: init %i32 = call %bound_method.loc25_53.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc25_53.2: init %i32 = converted %int_3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_53.1 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc25_53.3: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc25_53.4: ref %i32 = class_element_access %.loc25_53.3, element0
 // CHECK:STDOUT:   %.loc25_53.5: init %i32 = initialize_from %.loc25_53.2 to %.loc25_53.4 [concrete = constants.%int_3.822]
-// CHECK:STDOUT:   %impl.elem0.loc25_53.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc25_53.3: <bound method> = bound_method %int_4, %impl.elem0.loc25_53.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc25_53.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc25_53.3: <bound method> = bound_method %int_4, %impl.elem0.loc25_53.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc25_53.2: <specific function> = specific_function %impl.elem0.loc25_53.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc25_53.4: <bound method> = bound_method %int_4, %specific_fn.loc25_53.2 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc25_53.4: <bound method> = bound_method %int_4, %specific_fn.loc25_53.2 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_53.2: init %i32 = call %bound_method.loc25_53.4(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc25_53.6: init %i32 = converted %int_4, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_53.2 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc25_53.7: ref %i32 = class_element_access %.loc25_53.3, element1
@@ -973,7 +973,7 @@ var g: E({.a = 1, .b = 2}) = {} as E({.a = 3, .b = 4} as D);
 // CHECK:STDOUT: specific @E.as.Destroy.impl(constants.%F) {
 // CHECK:STDOUT:   %F => constants.%F
 // CHECK:STDOUT:   %E => constants.%E
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a79
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d0d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @E.as.Destroy.impl.Op(constants.%F) {
diff --git a/toolchain/check/testdata/class/import.carbon b/toolchain/check/testdata/class/import.carbon
index d335533bb324..448b758086b7 100644
--- a/toolchain/check/testdata/class/import.carbon
+++ b/toolchain/check/testdata/class/import.carbon
@@ -59,7 +59,7 @@ fn Run() {
 // CHECK:STDOUT:   %Empty: type = class_type @Empty [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.0e8: <witness> = impl_witness @Empty.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.b46: <witness> = impl_witness @Empty.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.961: type = ptr_type %Empty [concrete]
 // CHECK:STDOUT:   %pattern_type.00f: type = pattern_type %ptr.961 [concrete]
 // CHECK:STDOUT:   %Empty.as.Destroy.impl.Op.type: type = fn_type @Empty.as.Destroy.impl.Op [concrete]
@@ -72,7 +72,7 @@ fn Run() {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %Field.elem: type = unbound_element_type %Field, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e24: <witness> = impl_witness @Field.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.56b: <witness> = impl_witness @Field.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d8b: type = ptr_type %Field [concrete]
 // CHECK:STDOUT:   %pattern_type.8bd: type = pattern_type %ptr.d8b [concrete]
 // CHECK:STDOUT:   %Field.as.Destroy.impl.Op.type: type = fn_type @Field.as.Destroy.impl.Op [concrete]
@@ -87,7 +87,7 @@ fn Run() {
 // CHECK:STDOUT:   %pattern_type.ebb: type = pattern_type %ptr.6cf [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.G.type: type = fn_type @ForwardDeclared.G [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.G: %ForwardDeclared.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.bf4: <witness> = impl_witness @ForwardDeclared.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.c06: <witness> = impl_witness @ForwardDeclared.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.as.Destroy.impl.Op.type: type = fn_type @ForwardDeclared.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.as.Destroy.impl.Op: %ForwardDeclared.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Incomplete: type = class_type @Incomplete [concrete]
@@ -172,7 +172,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Empty [concrete = constants.%Empty]
 // CHECK:STDOUT:   impl_decl @Empty.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Empty.as.Destroy.impl.%Empty.as.Destroy.impl.Op.decl), @Empty.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.0e8]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b46]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -187,7 +187,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Field [concrete = constants.%Field]
 // CHECK:STDOUT:   impl_decl @Field.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Field.as.Destroy.impl.%Field.as.Destroy.impl.Op.decl), @Field.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e24]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.56b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -220,7 +220,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ForwardDeclared [concrete = constants.%ForwardDeclared]
 // CHECK:STDOUT:   impl_decl @ForwardDeclared.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ForwardDeclared.as.Destroy.impl.%ForwardDeclared.as.Destroy.impl.Op.decl), @ForwardDeclared.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.bf4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c06]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -263,26 +263,26 @@ fn Run() {
 // CHECK:STDOUT:   %struct_type.x.c96: type = struct_type {.x: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9ba: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.cf3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.6da: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e34: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e36, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.9ba = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e34) [concrete]
-// CHECK:STDOUT:   %.d6a: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.43e: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.947: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ed2: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ba4, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.cf3 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed2) [concrete]
+// CHECK:STDOUT:   %.2c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.434: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.ce7: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Field.val: %Field = struct_value (%int_1.47b) [concrete]
 // CHECK:STDOUT:   %Field.elem: type = unbound_element_type %Field, %i32 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.918: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %bound_method.c74: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.202: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %bound_method.934: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.d0d: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.7b34f2.1: type = class_type @ForwardDeclared.1 [concrete]
 // CHECK:STDOUT:   %pattern_type.1b8: type = pattern_type %ForwardDeclared.7b34f2.1 [concrete]
@@ -296,22 +296,22 @@ fn Run() {
 // CHECK:STDOUT:   %Incomplete: type = class_type @Incomplete [concrete]
 // CHECK:STDOUT:   %ptr.c62: type = ptr_type %Incomplete [concrete]
 // CHECK:STDOUT:   %pattern_type.275: type = pattern_type %ptr.c62 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.7f0: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.c62) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.90d: %T.as.Destroy.impl.Op.type.7f0 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.401: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.c62) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.542: %T.as.Destroy.impl.Op.type.401 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c22: type = ptr_type %ptr.c62 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.b24: <specific function> = specific_function %T.as.Destroy.impl.Op.90d, @T.as.Destroy.impl.Op(%ptr.c62) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.d2a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.6cf) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.3b0: %T.as.Destroy.impl.Op.type.d2a = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.7fe: <specific function> = specific_function %T.as.Destroy.impl.Op.542, @T.as.Destroy.impl.Op(%ptr.c62) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.6cf) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bdd: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.df0: type = ptr_type %ptr.6cf [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3de: <specific function> = specific_function %T.as.Destroy.impl.Op.3b0, @T.as.Destroy.impl.Op(%ptr.6cf) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c7e: <witness> = impl_witness imports.%Destroy.impl_witness_table.e4f [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.6d3: <specific function> = specific_function %T.as.Destroy.impl.Op.bdd, @T.as.Destroy.impl.Op(%ptr.6cf) [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.fe8: <witness> = impl_witness imports.%Destroy.impl_witness_table.c84 [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.as.Destroy.impl.Op.type: type = fn_type @ForwardDeclared.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.as.Destroy.impl.Op: %ForwardDeclared.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.7bf: <witness> = impl_witness imports.%Destroy.impl_witness_table.169 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.22a: <witness> = impl_witness imports.%Destroy.impl_witness_table.9c2 [concrete]
 // CHECK:STDOUT:   %Field.as.Destroy.impl.Op.type: type = fn_type @Field.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Field.as.Destroy.impl.Op: %Field.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.d8b: type = ptr_type %Field [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b5a: <witness> = impl_witness imports.%Destroy.impl_witness_table.587 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.3b2: <witness> = impl_witness imports.%Destroy.impl_witness_table.4d3 [concrete]
 // CHECK:STDOUT:   %Empty.as.Destroy.impl.Op.type: type = fn_type @Empty.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Empty.as.Destroy.impl.Op: %Empty.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.961: type = ptr_type %Empty [concrete]
@@ -334,8 +334,8 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.845 = import_ref Main//a, inst63 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4d2: %Field.elem = import_ref Main//a, loc8_8, loaded [concrete = %.d33]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a86c: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e36 = impl_witness_table (%Core.import_ref.a86c), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7bb: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ba4 = impl_witness_table (%Core.import_ref.7bb), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %.d33: %Field.elem = field_decl x, element0 [concrete]
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//a, loc16_1, loaded [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   %Main.import_ref.39e731.1 = import_ref Main//a, inst113 [no loc], unloaded
@@ -346,21 +346,21 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.42a = import_ref Main//a, loc14_21, unloaded
 // CHECK:STDOUT:   %Main.import_ref.67a = import_ref Main//a, loc15_27, unloaded
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.9a0: <witness> = import_ref Main//a, loc4_13, loaded [concrete = constants.%Destroy.impl_witness.b5a]
+// CHECK:STDOUT:   %Main.import_ref.0dc: <witness> = import_ref Main//a, loc4_13, loaded [concrete = constants.%Destroy.impl_witness.3b2]
 // CHECK:STDOUT:   %Main.import_ref.75f: type = import_ref Main//a, loc4_13, loaded [concrete = constants.%Empty]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//a, inst21 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.d40: <witness> = import_ref Main//a, loc7_13, loaded [concrete = constants.%Destroy.impl_witness.7bf]
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//a, inst21 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.8b8: <witness> = import_ref Main//a, loc7_13, loaded [concrete = constants.%Destroy.impl_witness.22a]
 // CHECK:STDOUT:   %Main.import_ref.6de: type = import_ref Main//a, loc7_13, loaded [concrete = constants.%Field]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//a, inst21 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.8eb: <witness> = import_ref Main//a, loc13_23, loaded [concrete = constants.%Destroy.impl_witness.c7e]
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//a, inst21 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.3c2: <witness> = import_ref Main//a, loc13_23, loaded [concrete = constants.%Destroy.impl_witness.fe8]
 // CHECK:STDOUT:   %Main.import_ref.805: type = import_ref Main//a, loc13_23, loaded [concrete = constants.%ForwardDeclared.7b34f2.1]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.3: type = import_ref Main//a, inst21 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.dd3: %ForwardDeclared.as.Destroy.impl.Op.type = import_ref Main//a, loc13_23, loaded [concrete = constants.%ForwardDeclared.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.e4f = impl_witness_table (%Main.import_ref.dd3), @ForwardDeclared.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Main.import_ref.006: %Field.as.Destroy.impl.Op.type = import_ref Main//a, loc7_13, loaded [concrete = constants.%Field.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.169 = impl_witness_table (%Main.import_ref.006), @Field.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Main.import_ref.6ec: %Empty.as.Destroy.impl.Op.type = import_ref Main//a, loc4_13, loaded [concrete = constants.%Empty.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.587 = impl_witness_table (%Main.import_ref.6ec), @Empty.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063034.3: type = import_ref Main//a, inst21 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.5f8: %ForwardDeclared.as.Destroy.impl.Op.type = import_ref Main//a, loc13_23, loaded [concrete = constants.%ForwardDeclared.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.c84 = impl_witness_table (%Main.import_ref.5f8), @ForwardDeclared.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.68c: %Field.as.Destroy.impl.Op.type = import_ref Main//a, loc7_13, loaded [concrete = constants.%Field.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.9c2 = impl_witness_table (%Main.import_ref.68c), @Field.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.dc9: %Empty.as.Destroy.impl.Op.type = import_ref Main//a, loc4_13, loaded [concrete = constants.%Empty.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.4d3 = impl_witness_table (%Main.import_ref.dc9), @Empty.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -377,19 +377,19 @@ fn Run() {
 // CHECK:STDOUT:   %Run.decl: %Run.type = fn_decl @Run [concrete = constants.%Run] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Empty.as.Destroy.impl: imports.%Main.import_ref.75f as imports.%Main.import_ref.cb9298.1 [from "a.carbon"] {
+// CHECK:STDOUT: impl @Empty.as.Destroy.impl: imports.%Main.import_ref.75f as imports.%Main.import_ref.063034.1 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.9a0
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.0dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Field.as.Destroy.impl: imports.%Main.import_ref.6de as imports.%Main.import_ref.cb9298.2 [from "a.carbon"] {
+// CHECK:STDOUT: impl @Field.as.Destroy.impl: imports.%Main.import_ref.6de as imports.%Main.import_ref.063034.2 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.d40
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.8b8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @ForwardDeclared.as.Destroy.impl: imports.%Main.import_ref.805 as imports.%Main.import_ref.cb9298.3 [from "a.carbon"] {
+// CHECK:STDOUT: impl @ForwardDeclared.as.Destroy.impl: imports.%Main.import_ref.805 as imports.%Main.import_ref.063034.3 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.8eb
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.3c2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @Empty [from "a.carbon"] {
@@ -447,10 +447,10 @@ fn Run() {
 // CHECK:STDOUT:   %b.var: ref %Field = var %b.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc9_25.1: %struct_type.x.c96 = struct_literal (%int_1)
-// CHECK:STDOUT:   %impl.elem0.loc9: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
-// CHECK:STDOUT:   %bound_method.loc9_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.43e]
+// CHECK:STDOUT:   %impl.elem0.loc9: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
+// CHECK:STDOUT:   %bound_method.loc9_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.434]
 // CHECK:STDOUT:   %specific_fn.loc9: <specific function> = specific_function %impl.elem0.loc9, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_25.2: <bound method> = bound_method %int_1, %specific_fn.loc9 [concrete = constants.%bound_method.947]
+// CHECK:STDOUT:   %bound_method.loc9_25.2: <bound method> = bound_method %int_1, %specific_fn.loc9 [concrete = constants.%bound_method.ce7]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9: init %i32 = call %bound_method.loc9_25.2(%int_1) [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:   %.loc9_25.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9 [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:   %.loc9_25.3: ref %i32 = class_element_access %b.var, element0
@@ -464,10 +464,10 @@ fn Run() {
 // CHECK:STDOUT:   %x.ref: %Field.elem = name_ref x, imports.%Main.import_ref.4d2 [concrete = imports.%.d33]
 // CHECK:STDOUT:   %.loc10_4: ref %i32 = class_element_access %b.ref, element0
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc10: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
-// CHECK:STDOUT:   %bound_method.loc10_7.1: <bound method> = bound_method %int_2, %impl.elem0.loc10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.918]
+// CHECK:STDOUT:   %impl.elem0.loc10: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
+// CHECK:STDOUT:   %bound_method.loc10_7.1: <bound method> = bound_method %int_2, %impl.elem0.loc10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.202]
 // CHECK:STDOUT:   %specific_fn.loc10: <specific function> = specific_function %impl.elem0.loc10, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_7.2: <bound method> = bound_method %int_2, %specific_fn.loc10 [concrete = constants.%bound_method.c74]
+// CHECK:STDOUT:   %bound_method.loc10_7.2: <bound method> = bound_method %int_2, %specific_fn.loc10 [concrete = constants.%bound_method.934]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10: init %i32 = call %bound_method.loc10_7.2(%int_2) [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:   %.loc10_7: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10 [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:   assign %.loc10_4, %.loc10_7
@@ -515,13 +515,13 @@ fn Run() {
 // CHECK:STDOUT:     %ptr.loc18: type = ptr_type %Incomplete.ref [concrete = constants.%ptr.c62]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %e: ref %ptr.c62 = bind_name e, %e.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %e.var, constants.%T.as.Destroy.impl.Op.90d
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.90d, @T.as.Destroy.impl.Op(constants.%ptr.c62) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.b24]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %e.var, constants.%T.as.Destroy.impl.Op.542
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.542, @T.as.Destroy.impl.Op(constants.%ptr.c62) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.7fe]
 // CHECK:STDOUT:   %bound_method.loc18: <bound method> = bound_method %e.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc18: %ptr.c22 = addr_of %e.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc18: init %empty_tuple.type = call %bound_method.loc18(%addr.loc18)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.3b0
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.3b0, @T.as.Destroy.impl.Op(constants.%ptr.6cf) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.3de]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.bdd
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bdd, @T.as.Destroy.impl.Op(constants.%ptr.6cf) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.6d3]
 // CHECK:STDOUT:   %bound_method.loc16: <bound method> = bound_method %d.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc16_3: %ptr.df0 = addr_of %d.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc16: init %empty_tuple.type = call %bound_method.loc16(%addr.loc16_3)
diff --git a/toolchain/check/testdata/class/import_base.carbon b/toolchain/check/testdata/class/import_base.carbon
index ca5d730a2571..be7d8e0132a3 100644
--- a/toolchain/check/testdata/class/import_base.carbon
+++ b/toolchain/check/testdata/class/import_base.carbon
@@ -56,7 +56,7 @@ fn Run() {
 // CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -65,7 +65,7 @@ fn Run() {
 // CHECK:STDOUT:   %complete_type.20c: <witness> = complete_type_witness %struct_type.x.unused [concrete]
 // CHECK:STDOUT:   %Child: type = class_type @Child [concrete]
 // CHECK:STDOUT:   %Child.elem: type = unbound_element_type %Child, %Base [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.6fe: <witness> = impl_witness @Child.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.dab: <witness> = impl_witness @Child.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.dc0: type = ptr_type %Child [concrete]
 // CHECK:STDOUT:   %pattern_type.b70: type = pattern_type %ptr.dc0 [concrete]
 // CHECK:STDOUT:   %Child.as.Destroy.impl.Op.type: type = fn_type @Child.as.Destroy.impl.Op [concrete]
@@ -154,7 +154,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x.unused [concrete = constants.%complete_type.20c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -172,7 +172,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Child [concrete = constants.%Child]
 // CHECK:STDOUT:   impl_decl @Child.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Child.as.Destroy.impl.%Child.as.Destroy.impl.Op.decl), @Child.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6fe]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.dab]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -212,34 +212,34 @@ fn Run() {
 // CHECK:STDOUT:   %struct_type.base.6c7: type = struct_type {.base: %struct_type.x.unused.c45} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9ba: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.cf3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.6da: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e34: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e36, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.9ba = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e34) [concrete]
-// CHECK:STDOUT:   %.d6a: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9aa: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.8aa: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ed2: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ba4, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.cf3 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed2) [concrete]
+// CHECK:STDOUT:   %.2c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.44c: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.9f6: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.263: %i32 = int_value 0 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.43e: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %bound_method.947: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.434: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %bound_method.ce7: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Base.val: %Base = struct_value (%int_0.263, %int_1.47b) [concrete]
 // CHECK:STDOUT:   %Child.val: %Child = struct_value (%Base.val) [concrete]
 // CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.918: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %bound_method.c74: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.202: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %bound_method.934: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.d0d: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F [concrete]
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.cef: <witness> = impl_witness imports.%Destroy.impl_witness_table.ad3 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.320: <witness> = impl_witness imports.%Destroy.impl_witness_table.1f1 [concrete]
 // CHECK:STDOUT:   %Child.as.Destroy.impl.Op.type: type = fn_type @Child.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Child.as.Destroy.impl.Op: %Child.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.dc0: type = ptr_type %Child [concrete]
@@ -265,18 +265,18 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.7e5 = import_ref Main//a, loc13_20, unloaded
 // CHECK:STDOUT:   %Main.import_ref.a21640.2: type = import_ref Main//a, loc13_16, loaded [concrete = constants.%Base]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a86c: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e36 = impl_witness_table (%Core.import_ref.a86c), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7bb: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ba4 = impl_witness_table (%Core.import_ref.7bb), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %.720: %Base.elem = field_decl x, element0 [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.9cd = import_ref Main//a, loc4_17, unloaded
+// CHECK:STDOUT:   %Main.import_ref.ec6 = import_ref Main//a, loc4_17, unloaded
 // CHECK:STDOUT:   %Main.import_ref.87c: type = import_ref Main//a, loc4_17, loaded [concrete = constants.%Base]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//a, inst70 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.9d9: <witness> = import_ref Main//a, loc12_13, loaded [concrete = constants.%Destroy.impl_witness.cef]
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//a, inst70 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.033: <witness> = import_ref Main//a, loc12_13, loaded [concrete = constants.%Destroy.impl_witness.320]
 // CHECK:STDOUT:   %Main.import_ref.98c: type = import_ref Main//a, loc12_13, loaded [concrete = constants.%Child]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//a, inst70 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.141: %Child.as.Destroy.impl.Op.type = import_ref Main//a, loc12_13, loaded [concrete = constants.%Child.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.ad3 = impl_witness_table (%Main.import_ref.141), @Child.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//a, inst70 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.d33: %Child.as.Destroy.impl.Op.type = import_ref Main//a, loc12_13, loaded [concrete = constants.%Child.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.1f1 = impl_witness_table (%Main.import_ref.d33), @Child.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -291,14 +291,14 @@ fn Run() {
 // CHECK:STDOUT:   %Run.decl: %Run.type = fn_decl @Run [concrete = constants.%Run] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Base.as.Destroy.impl: imports.%Main.import_ref.87c as imports.%Main.import_ref.cb9298.1 [from "a.carbon"] {
+// CHECK:STDOUT: impl @Base.as.Destroy.impl: imports.%Main.import_ref.87c as imports.%Main.import_ref.063034.1 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.9cd
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.ec6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Child.as.Destroy.impl: imports.%Main.import_ref.98c as imports.%Main.import_ref.cb9298.2 [from "a.carbon"] {
+// CHECK:STDOUT: impl @Child.as.Destroy.impl: imports.%Main.import_ref.98c as imports.%Main.import_ref.063034.2 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.9d9
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.033
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @Child [from "a.carbon"] {
@@ -334,19 +334,19 @@ fn Run() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc7_47.1: %struct_type.x.unused.c45 = struct_literal (%int_0, %int_1)
 // CHECK:STDOUT:   %.loc7_48.1: %struct_type.base.6c7 = struct_literal (%.loc7_47.1)
-// CHECK:STDOUT:   %impl.elem0.loc7_47.1: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
-// CHECK:STDOUT:   %bound_method.loc7_47.1: <bound method> = bound_method %int_0, %impl.elem0.loc7_47.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9aa]
+// CHECK:STDOUT:   %impl.elem0.loc7_47.1: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
+// CHECK:STDOUT:   %bound_method.loc7_47.1: <bound method> = bound_method %int_0, %impl.elem0.loc7_47.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.44c]
 // CHECK:STDOUT:   %specific_fn.loc7_47.1: <specific function> = specific_function %impl.elem0.loc7_47.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_47.2: <bound method> = bound_method %int_0, %specific_fn.loc7_47.1 [concrete = constants.%bound_method.8aa]
+// CHECK:STDOUT:   %bound_method.loc7_47.2: <bound method> = bound_method %int_0, %specific_fn.loc7_47.1 [concrete = constants.%bound_method.9f6]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_47.1: init %i32 = call %bound_method.loc7_47.2(%int_0) [concrete = constants.%int_0.263]
 // CHECK:STDOUT:   %.loc7_47.2: init %i32 = converted %int_0, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_47.1 [concrete = constants.%int_0.263]
 // CHECK:STDOUT:   %.loc7_48.2: ref %Base = class_element_access %a.var, element0
 // CHECK:STDOUT:   %.loc7_47.3: ref %i32 = class_element_access %.loc7_48.2, element0
 // CHECK:STDOUT:   %.loc7_47.4: init %i32 = initialize_from %.loc7_47.2 to %.loc7_47.3 [concrete = constants.%int_0.263]
-// CHECK:STDOUT:   %impl.elem0.loc7_47.2: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
-// CHECK:STDOUT:   %bound_method.loc7_47.3: <bound method> = bound_method %int_1, %impl.elem0.loc7_47.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.43e]
+// CHECK:STDOUT:   %impl.elem0.loc7_47.2: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
+// CHECK:STDOUT:   %bound_method.loc7_47.3: <bound method> = bound_method %int_1, %impl.elem0.loc7_47.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.434]
 // CHECK:STDOUT:   %specific_fn.loc7_47.2: <specific function> = specific_function %impl.elem0.loc7_47.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_47.4: <bound method> = bound_method %int_1, %specific_fn.loc7_47.2 [concrete = constants.%bound_method.947]
+// CHECK:STDOUT:   %bound_method.loc7_47.4: <bound method> = bound_method %int_1, %specific_fn.loc7_47.2 [concrete = constants.%bound_method.ce7]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_47.2: init %i32 = call %bound_method.loc7_47.4(%int_1) [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:   %.loc7_47.5: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_47.2 [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:   %.loc7_47.6: ref %i32 = class_element_access %.loc7_48.2, element1
@@ -364,10 +364,10 @@ fn Run() {
 // CHECK:STDOUT:   %.loc8_4.2: ref %Base = converted %a.ref.loc8, %.loc8_4.1
 // CHECK:STDOUT:   %.loc8_4.3: ref %i32 = class_element_access %.loc8_4.2, element0
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc8: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
-// CHECK:STDOUT:   %bound_method.loc8_7.1: <bound method> = bound_method %int_2, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.918]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
+// CHECK:STDOUT:   %bound_method.loc8_7.1: <bound method> = bound_method %int_2, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.202]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_7.2: <bound method> = bound_method %int_2, %specific_fn.loc8 [concrete = constants.%bound_method.c74]
+// CHECK:STDOUT:   %bound_method.loc8_7.2: <bound method> = bound_method %int_2, %specific_fn.loc8 [concrete = constants.%bound_method.934]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8: init %i32 = call %bound_method.loc8_7.2(%int_2) [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:   %.loc8_7: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8 [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:   assign %.loc8_4.3, %.loc8_7
diff --git a/toolchain/check/testdata/class/import_member_cycle.carbon b/toolchain/check/testdata/class/import_member_cycle.carbon
index cf96b8a4ca4e..d0cc93c44009 100644
--- a/toolchain/check/testdata/class/import_member_cycle.carbon
+++ b/toolchain/check/testdata/class/import_member_cycle.carbon
@@ -111,10 +111,10 @@ fn Run() {
 // CHECK:STDOUT:   %complete_type.e4b: <witness> = complete_type_witness %struct_type.a [concrete]
 // CHECK:STDOUT:   %pattern_type.d3d: type = pattern_type %ptr.257 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a45: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.257) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.109: %T.as.Destroy.impl.Op.type.a45 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.7a5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.257) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.3e5: %T.as.Destroy.impl.Op.type.7a5 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.d80: type = ptr_type %ptr.257 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.109, @T.as.Destroy.impl.Op(%ptr.257) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.3e5, @T.as.Destroy.impl.Op(%ptr.257) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -128,9 +128,9 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.3a6 = import_ref Main//a, inst18 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4e0 = import_ref Main//a, loc5_8, unloaded
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.4ac = import_ref Main//a, loc4_13, unloaded
+// CHECK:STDOUT:   %Main.import_ref.0d1 = import_ref Main//a, loc4_13, unloaded
 // CHECK:STDOUT:   %Main.import_ref.f64: type = import_ref Main//a, loc4_13, loaded [concrete = constants.%Cycle]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//a, inst26 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//a, inst26 [no loc], loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -144,9 +144,9 @@ fn Run() {
 // CHECK:STDOUT:   %Run.decl: %Run.type = fn_decl @Run [concrete = constants.%Run] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Cycle.as.Destroy.impl: imports.%Main.import_ref.f64 as imports.%Main.import_ref.cb9 [from "a.carbon"] {
+// CHECK:STDOUT: impl @Cycle.as.Destroy.impl: imports.%Main.import_ref.f64 as imports.%Main.import_ref.063 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.4ac
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.0d1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @Cycle [from "a.carbon"] {
@@ -169,8 +169,8 @@ fn Run() {
 // CHECK:STDOUT:     %ptr: type = ptr_type %Cycle.ref [concrete = constants.%ptr.257]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %a: ref %ptr.257 = bind_name a, %a.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.109
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.109, @T.as.Destroy.impl.Op(constants.%ptr.257) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.3e5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.3e5, @T.as.Destroy.impl.Op(constants.%ptr.257) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.d80 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/class/inheritance_access.carbon b/toolchain/check/testdata/class/inheritance_access.carbon
index 8a352d751fa3..6d9feb5d9f8e 100644
--- a/toolchain/check/testdata/class/inheritance_access.carbon
+++ b/toolchain/check/testdata/class/inheritance_access.carbon
@@ -242,7 +242,7 @@ class B {
 // CHECK:STDOUT:   %Shape.elem: type = unbound_element_type %Shape, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.35e: <witness> = impl_witness @Shape.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.80f: <witness> = impl_witness @Shape.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d62: type = ptr_type %Shape [concrete]
 // CHECK:STDOUT:   %pattern_type.77d: type = pattern_type %ptr.d62 [concrete]
 // CHECK:STDOUT:   %Shape.as.Destroy.impl.Op.type: type = fn_type @Shape.as.Destroy.impl.Op [concrete]
@@ -257,7 +257,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.511: type = pattern_type %tuple.type.d07 [concrete]
 // CHECK:STDOUT:   %Circle.GetPosition.type: type = fn_type @Circle.GetPosition [concrete]
 // CHECK:STDOUT:   %Circle.GetPosition: %Circle.GetPosition.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2a8: <witness> = impl_witness @Circle.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62c: <witness> = impl_witness @Circle.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.54d: type = ptr_type %Circle [concrete]
 // CHECK:STDOUT:   %pattern_type.f32: type = pattern_type %ptr.54d [concrete]
 // CHECK:STDOUT:   %Circle.as.Destroy.impl.Op.type: type = fn_type @Circle.as.Destroy.impl.Op [concrete]
@@ -330,7 +330,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Shape [concrete = constants.%Shape]
 // CHECK:STDOUT:   impl_decl @Shape.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Shape.as.Destroy.impl.%Shape.as.Destroy.impl.Op.decl), @Shape.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.35e]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.80f]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x.y [concrete = constants.%complete_type.70a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -364,7 +364,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Circle [concrete = constants.%Circle]
 // CHECK:STDOUT:   impl_decl @Circle.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Circle.as.Destroy.impl.%Circle.as.Destroy.impl.Op.decl), @Circle.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2a8]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ed [concrete = constants.%complete_type.a2b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -415,7 +415,7 @@ class B {
 // CHECK:STDOUT:   %A.F: %A.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -431,7 +431,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %B.F.type: type = fn_type @B.F [concrete]
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -444,7 +444,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %C.G.type: type = fn_type @C.G [concrete]
 // CHECK:STDOUT:   %C.G: %C.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -452,10 +452,10 @@ class B {
 // CHECK:STDOUT:   %struct_type.base.0ff: type = struct_type {.base: %B} [concrete]
 // CHECK:STDOUT:   %complete_type.98e: <witness> = complete_type_witness %struct_type.base.0ff [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -535,7 +535,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -559,7 +559,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.953 [concrete = constants.%complete_type.020]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -591,7 +591,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ff [concrete = constants.%complete_type.98e]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -621,8 +621,8 @@ class B {
 // CHECK:STDOUT:   %.loc15_44.2: ref %empty_tuple.type = temporary %.loc15_44.1, %A.F.call
 // CHECK:STDOUT:   %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc15_45: %empty_tuple.type = converted %A.F.call, %tuple [concrete = constants.%empty_tuple]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc15_44.2, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc15_44.2, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc15_44.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %.loc15_44.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -643,25 +643,25 @@ class B {
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %A.SomeProtectedFunction.type: type = fn_type @A.SomeProtectedFunction [concrete]
 // CHECK:STDOUT:   %A.SomeProtectedFunction: %A.SomeProtectedFunction.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -674,7 +674,7 @@ class B {
 // CHECK:STDOUT:   %B.G: %B.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %B.H.type: type = fn_type @B.H [concrete]
 // CHECK:STDOUT:   %B.H: %B.H.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -693,8 +693,8 @@ class B {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -750,7 +750,7 @@ class B {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc5_38.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc5_38.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method]
@@ -770,7 +770,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -805,7 +805,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.020]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -821,7 +821,7 @@ class B {
 // CHECK:STDOUT: fn @A.SomeProtectedFunction() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc7_13.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_13.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method]
@@ -863,7 +863,7 @@ class B {
 // CHECK:STDOUT:   %Shape.elem: type = unbound_element_type %Shape, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.35e: <witness> = impl_witness @Shape.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.80f: <witness> = impl_witness @Shape.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d62: type = ptr_type %Shape [concrete]
 // CHECK:STDOUT:   %pattern_type.77d: type = pattern_type %ptr.d62 [concrete]
 // CHECK:STDOUT:   %Shape.as.Destroy.impl.Op.type: type = fn_type @Shape.as.Destroy.impl.Op [concrete]
@@ -876,7 +876,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %Square.GetPosition.type: type = fn_type @Square.GetPosition [concrete]
 // CHECK:STDOUT:   %Square.GetPosition: %Square.GetPosition.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.17d: <witness> = impl_witness @Square.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.675: <witness> = impl_witness @Square.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.671: type = ptr_type %Square [concrete]
 // CHECK:STDOUT:   %pattern_type.dc2: type = pattern_type %ptr.671 [concrete]
 // CHECK:STDOUT:   %Square.as.Destroy.impl.Op.type: type = fn_type @Square.as.Destroy.impl.Op [concrete]
@@ -946,7 +946,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Shape [concrete = constants.%Shape]
 // CHECK:STDOUT:   impl_decl @Shape.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Shape.as.Destroy.impl.%Shape.as.Destroy.impl.Op.decl), @Shape.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.35e]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.80f]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.y [concrete = constants.%complete_type.0f9]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -975,7 +975,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Square [concrete = constants.%Square]
 // CHECK:STDOUT:   impl_decl @Square.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Square.as.Destroy.impl.%Square.as.Destroy.impl.Op.decl), @Square.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.17d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.675]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ed [concrete = constants.%complete_type.a2b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1177,7 +1177,7 @@ class B {
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -1188,7 +1188,7 @@ class B {
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %B [concrete]
 // CHECK:STDOUT:   %C.G.type: type = fn_type @C.G [concrete]
 // CHECK:STDOUT:   %C.G: %C.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1254,7 +1254,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1270,7 +1270,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ff [concrete = constants.%complete_type.98e]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1308,7 +1308,7 @@ class B {
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -1319,7 +1319,7 @@ class B {
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %B [concrete]
 // CHECK:STDOUT:   %C.G.type: type = fn_type @C.G [concrete]
 // CHECK:STDOUT:   %C.G: %C.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1385,7 +1385,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1401,7 +1401,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.0ff [concrete = constants.%complete_type.98e]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1443,23 +1443,23 @@ class B {
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -1467,7 +1467,7 @@ class B {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Internal: type = class_type @Internal [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.909: <witness> = impl_witness @Internal.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.abc: <witness> = impl_witness @Internal.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.84a: type = ptr_type %Internal [concrete]
 // CHECK:STDOUT:   %pattern_type.e1d: type = pattern_type %ptr.84a [concrete]
 // CHECK:STDOUT:   %Internal.as.Destroy.impl.Op.type: type = fn_type @Internal.as.Destroy.impl.Op [concrete]
@@ -1479,7 +1479,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.049: type = pattern_type %B [concrete]
 // CHECK:STDOUT:   %B.SomeFunc.type: type = fn_type @B.SomeFunc [concrete]
 // CHECK:STDOUT:   %B.SomeFunc: %B.SomeFunc.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -1498,8 +1498,8 @@ class B {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1573,7 +1573,7 @@ class B {
 // CHECK:STDOUT:     %int_32.loc5: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc5: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc5: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc5: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc5_48.1: <bound method> = bound_method %int_5.loc5, %impl.elem0.loc5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc5: <specific function> = specific_function %impl.elem0.loc5, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc5_48.2: <bound method> = bound_method %int_5.loc5, %specific_fn.loc5 [concrete = constants.%bound_method]
@@ -1589,7 +1589,7 @@ class B {
 // CHECK:STDOUT:     %int_32.loc6: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc6: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc6_44.1: <bound method> = bound_method %int_5.loc6, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_44.2: <bound method> = bound_method %int_5.loc6, %specific_fn.loc6 [concrete = constants.%bound_method]
@@ -1600,7 +1600,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1619,7 +1619,7 @@ class B {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc10_42.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc10_42.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method]
@@ -1630,7 +1630,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Internal [concrete = constants.%Internal]
 // CHECK:STDOUT:   impl_decl @Internal.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Internal.as.Destroy.impl.%Internal.as.Destroy.impl.Op.decl), @Internal.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.909]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.abc]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1668,7 +1668,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.internal.6f5 [concrete = constants.%complete_type.d77]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1717,7 +1717,7 @@ class B {
 // CHECK:STDOUT:   %A.elem: type = unbound_element_type %A, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -1729,7 +1729,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.049: type = pattern_type %B [concrete]
 // CHECK:STDOUT:   %B.F.type: type = fn_type @B.F [concrete]
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -1799,7 +1799,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1823,7 +1823,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.953 [concrete = constants.%complete_type.020]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1858,7 +1858,7 @@ class B {
 // CHECK:STDOUT:   %A.elem: type = unbound_element_type %A, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -1870,7 +1870,7 @@ class B {
 // CHECK:STDOUT:   %pattern_type.049: type = pattern_type %B [concrete]
 // CHECK:STDOUT:   %B.F.type: type = fn_type @B.F [concrete]
 // CHECK:STDOUT:   %B.F: %B.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -1940,7 +1940,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1964,7 +1964,7 @@ class B {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.953 [concrete = constants.%complete_type.020]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/init_as.carbon b/toolchain/check/testdata/class/init_as.carbon
index 353bd394be8e..eb3e96e38e45 100644
--- a/toolchain/check/testdata/class/init_as.carbon
+++ b/toolchain/check/testdata/class/init_as.carbon
@@ -33,7 +33,7 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -48,22 +48,22 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %Class.val: %Class = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT: }
@@ -79,8 +79,8 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -128,7 +128,7 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -146,19 +146,19 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc21_26.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
 // CHECK:STDOUT:   %Class.ref: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
-// CHECK:STDOUT:   %impl.elem0.loc21_26.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_26.1: <bound method> = bound_method %int_1, %impl.elem0.loc21_26.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc21_26.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_26.1: <bound method> = bound_method %int_1, %impl.elem0.loc21_26.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc21_26.1: <specific function> = specific_function %impl.elem0.loc21_26.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_26.2: <bound method> = bound_method %int_1, %specific_fn.loc21_26.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc21_26.2: <bound method> = bound_method %int_1, %specific_fn.loc21_26.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_26.1: init %i32 = call %bound_method.loc21_26.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc21_26.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_26.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc21_26.3: ref %Class = temporary_storage
 // CHECK:STDOUT:   %.loc21_26.4: ref %i32 = class_element_access %.loc21_26.3, element0
 // CHECK:STDOUT:   %.loc21_26.5: init %i32 = initialize_from %.loc21_26.2 to %.loc21_26.4 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc21_26.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_26.3: <bound method> = bound_method %int_2, %impl.elem0.loc21_26.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc21_26.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_26.3: <bound method> = bound_method %int_2, %impl.elem0.loc21_26.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc21_26.2: <specific function> = specific_function %impl.elem0.loc21_26.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_26.4: <bound method> = bound_method %int_2, %specific_fn.loc21_26.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc21_26.4: <bound method> = bound_method %int_2, %specific_fn.loc21_26.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_26.2: init %i32 = call %bound_method.loc21_26.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc21_26.6: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_26.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc21_26.7: ref %i32 = class_element_access %.loc21_26.3, element1
diff --git a/toolchain/check/testdata/class/init_nested.carbon b/toolchain/check/testdata/class/init_nested.carbon
index 7dbc8e5e3dea..23b7c5401568 100644
--- a/toolchain/check/testdata/class/init_nested.carbon
+++ b/toolchain/check/testdata/class/init_nested.carbon
@@ -39,7 +39,7 @@ fn MakeOuter() -> Outer {
 // CHECK:STDOUT:   %Inner.elem: type = unbound_element_type %Inner, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.def: <witness> = impl_witness @Inner.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e3: <witness> = impl_witness @Inner.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.78b: type = ptr_type %Inner [concrete]
 // CHECK:STDOUT:   %pattern_type.6f5: type = pattern_type %ptr.78b [concrete]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op [concrete]
@@ -51,7 +51,7 @@ fn MakeOuter() -> Outer {
 // CHECK:STDOUT:   %MakeInner: %MakeInner.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer [concrete]
 // CHECK:STDOUT:   %Outer.elem: type = unbound_element_type %Outer, %Inner [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d28: <witness> = impl_witness @Outer.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.85e: <witness> = impl_witness @Outer.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.5df: type = ptr_type %Outer [concrete]
 // CHECK:STDOUT:   %pattern_type.95c: type = pattern_type %ptr.5df [concrete]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op [concrete]
@@ -145,7 +145,7 @@ fn MakeOuter() -> Outer {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Inner [concrete = constants.%Inner]
 // CHECK:STDOUT:   impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.def]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e3]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -163,7 +163,7 @@ fn MakeOuter() -> Outer {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Outer [concrete = constants.%Outer]
 // CHECK:STDOUT:   impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d28]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.85e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.c.d.dce [concrete = constants.%complete_type.8b6]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/local.carbon b/toolchain/check/testdata/class/local.carbon
index 6482544d3f97..7591e95a4f3c 100644
--- a/toolchain/check/testdata/class/local.carbon
+++ b/toolchain/check/testdata/class/local.carbon
@@ -41,7 +41,7 @@ class A {
 // CHECK:STDOUT:   %A.F: %A.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -53,7 +53,7 @@ class A {
 // CHECK:STDOUT:   %B.Make.type: type = fn_type @B.Make [concrete]
 // CHECK:STDOUT:   %B.Make: %B.Make.type = struct_value () [concrete]
 // CHECK:STDOUT:   %B.elem: type = unbound_element_type %B, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.742: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.a02: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.bac: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.e9c: type = pattern_type %ptr.bac [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -64,18 +64,18 @@ class A {
 // CHECK:STDOUT:   %struct_type.n.44a: type = struct_type {.n: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %B.val: %B = struct_value (%int_1.5d2) [concrete]
@@ -92,8 +92,8 @@ class A {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -150,7 +150,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -174,7 +174,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.742]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.a02]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n.033 [concrete = constants.%complete_type.54b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -211,7 +211,7 @@ class A {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc19_39.1: %struct_type.n.44a = struct_literal (%int_1)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc19_39.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc19_39.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/class/method.carbon b/toolchain/check/testdata/class/method.carbon
index 42de72c758c0..23a9d5abb7f1 100644
--- a/toolchain/check/testdata/class/method.carbon
+++ b/toolchain/check/testdata/class/method.carbon
@@ -82,7 +82,7 @@ fn CallGOnInitializingExpr() -> i32 {
 // CHECK:STDOUT:   %Class.G: %Class.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op: %Class.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.k.0bf: type = struct_type {.k: %i32} [concrete]
@@ -97,18 +97,18 @@ fn CallGOnInitializingExpr() -> i32 {
 // CHECK:STDOUT:   %struct_type.k.240: type = struct_type {.k: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Class.val: %Class = struct_value (%int_1.5d2) [concrete]
@@ -137,8 +137,8 @@ fn CallGOnInitializingExpr() -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -336,7 +336,7 @@ fn CallGOnInitializingExpr() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.k.0bf [concrete = constants.%complete_type.954]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -388,7 +388,7 @@ fn CallGOnInitializingExpr() -> i32 {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc39_18.1: %struct_type.k.240 = struct_literal (%int_1)
 // CHECK:STDOUT:   %Class.ref: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc39_18.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc39_18.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/class/nested.carbon b/toolchain/check/testdata/class/nested.carbon
index d06144154f51..f1968e212aa5 100644
--- a/toolchain/check/testdata/class/nested.carbon
+++ b/toolchain/check/testdata/class/nested.carbon
@@ -69,7 +69,7 @@ fn F(a: Outer*) {
 // CHECK:STDOUT:   %Inner.G: %Inner.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.75f: <witness> = impl_witness @Inner.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.661: <witness> = impl_witness @Inner.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.27f: type = pattern_type %ptr.36a [concrete]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [concrete]
@@ -79,7 +79,7 @@ fn F(a: Outer*) {
 // CHECK:STDOUT:   %Outer.H: %Outer.H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Outer.elem.a16: type = unbound_element_type %Outer, %ptr.5df [concrete]
 // CHECK:STDOUT:   %Outer.elem.fe9: type = unbound_element_type %Outer, %ptr.36a [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d28: <witness> = impl_witness @Outer.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.85e: <witness> = impl_witness @Outer.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.95c: type = pattern_type %ptr.5df [concrete]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op: %Outer.as.Destroy.impl.Op.type = struct_value () [concrete]
@@ -169,7 +169,7 @@ fn F(a: Outer*) {
 // CHECK:STDOUT:   %Self.ref.loc15: type = name_ref Self, constants.%Outer [concrete = constants.%Outer]
 // CHECK:STDOUT:   impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d28]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.85e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.po.qo.pi [concrete = constants.%complete_type.e99]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -198,7 +198,7 @@ fn F(a: Outer*) {
 // CHECK:STDOUT:   %Self.ref.loc22: type = name_ref Self, constants.%Inner [concrete = constants.%Inner]
 // CHECK:STDOUT:   impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.75f]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.661]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.pi.po.qi [concrete = constants.%complete_type.7ae]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/nested_name.carbon b/toolchain/check/testdata/class/nested_name.carbon
index 7672e43b1967..a3c0998345d3 100644
--- a/toolchain/check/testdata/class/nested_name.carbon
+++ b/toolchain/check/testdata/class/nested_name.carbon
@@ -39,14 +39,14 @@ fn G(o: Outer) {
 // CHECK:STDOUT:   %Inner.elem: type = unbound_element_type %Inner, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.75f: <witness> = impl_witness @Inner.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.661: <witness> = impl_witness @Inner.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.36a: type = ptr_type %Inner [concrete]
 // CHECK:STDOUT:   %pattern_type.27f: type = pattern_type %ptr.36a [concrete]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.n: type = struct_type {.n: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.54b: <witness> = complete_type_witness %struct_type.n [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d28: <witness> = impl_witness @Outer.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.85e: <witness> = impl_witness @Outer.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.5df: type = ptr_type %Outer [concrete]
 // CHECK:STDOUT:   %pattern_type.95c: type = pattern_type %ptr.5df [concrete]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op [concrete]
@@ -146,7 +146,7 @@ fn G(o: Outer) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Outer [concrete = constants.%Outer]
 // CHECK:STDOUT:   impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d28]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.85e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -162,7 +162,7 @@ fn G(o: Outer) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Inner [concrete = constants.%Inner]
 // CHECK:STDOUT:   impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.75f]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.661]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n [concrete = constants.%complete_type.54b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/raw_self_type.carbon b/toolchain/check/testdata/class/raw_self_type.carbon
index d299178e4cdf..de69e4167eca 100644
--- a/toolchain/check/testdata/class/raw_self_type.carbon
+++ b/toolchain/check/testdata/class/raw_self_type.carbon
@@ -36,20 +36,20 @@ fn MemberNamedSelf.F(x: Self, y: r#Self) {}
 // CHECK:STDOUT:   %Class.F: %Class.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op: %Class.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.faa: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.e71) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.5a3: %T.as.Destroy.impl.Op.type.faa = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.17c: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.e71) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d98: %T.as.Destroy.impl.Op.type.17c = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.0dd: type = ptr_type %ptr.e71 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.5a3, @T.as.Destroy.impl.Op(%ptr.e71) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d98, @T.as.Destroy.impl.Op(%ptr.e71) [concrete]
 // CHECK:STDOUT:   %MemberNamedSelf: type = class_type @MemberNamedSelf [concrete]
 // CHECK:STDOUT:   %Self.362: type = class_type @Self [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.077: <witness> = impl_witness @Self.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.d63: <witness> = impl_witness @Self.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.fbf: type = ptr_type %Self.362 [concrete]
 // CHECK:STDOUT:   %pattern_type.364: type = pattern_type %ptr.fbf [concrete]
 // CHECK:STDOUT:   %Self.as.Destroy.impl.Op.type: type = fn_type @Self.as.Destroy.impl.Op [concrete]
@@ -58,7 +58,7 @@ fn MemberNamedSelf.F(x: Self, y: r#Self) {}
 // CHECK:STDOUT:   %pattern_type.c06: type = pattern_type %Self.362 [concrete]
 // CHECK:STDOUT:   %MemberNamedSelf.F.type: type = fn_type @MemberNamedSelf.F [concrete]
 // CHECK:STDOUT:   %MemberNamedSelf.F: %MemberNamedSelf.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a94: <witness> = impl_witness @MemberNamedSelf.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.db0: <witness> = impl_witness @MemberNamedSelf.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.9b1: type = ptr_type %MemberNamedSelf [concrete]
 // CHECK:STDOUT:   %pattern_type.64a: type = pattern_type %ptr.9b1 [concrete]
 // CHECK:STDOUT:   %MemberNamedSelf.as.Destroy.impl.Op.type: type = fn_type @MemberNamedSelf.as.Destroy.impl.Op [concrete]
@@ -151,7 +151,7 @@ fn MemberNamedSelf.F(x: Self, y: r#Self) {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -178,7 +178,7 @@ fn MemberNamedSelf.F(x: Self, y: r#Self) {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%MemberNamedSelf [concrete = constants.%MemberNamedSelf]
 // CHECK:STDOUT:   impl_decl @MemberNamedSelf.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@MemberNamedSelf.as.Destroy.impl.%MemberNamedSelf.as.Destroy.impl.Op.decl), @MemberNamedSelf.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.a94]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.db0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -192,7 +192,7 @@ fn MemberNamedSelf.F(x: Self, y: r#Self) {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Self.362 [concrete = constants.%Self.362]
 // CHECK:STDOUT:   impl_decl @Self.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Self.as.Destroy.impl.%Self.as.Destroy.impl.Op.decl), @Self.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.077]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d63]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -225,13 +225,13 @@ fn MemberNamedSelf.F(x: Self, y: r#Self) {}
 // CHECK:STDOUT:     %ptr.loc18: type = ptr_type %Self.ref.loc18_12 [concrete = constants.%ptr.e71]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %p: ref %ptr.e71 = bind_name p, %p.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.5a3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.5a3, @T.as.Destroy.impl.Op(constants.%ptr.e71) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.d98
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d98, @T.as.Destroy.impl.Op(constants.%ptr.e71) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc18: <bound method> = bound_method %p.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc18: %ptr.0dd = addr_of %p.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc18: init %empty_tuple.type = call %bound_method.loc18(%addr.loc18)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %Self.var, constants.%T.as.Destroy.impl.Op.5a3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.5a3, @T.as.Destroy.impl.Op(constants.%ptr.e71) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %Self.var, constants.%T.as.Destroy.impl.Op.d98
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d98, @T.as.Destroy.impl.Op(constants.%ptr.e71) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc17: <bound method> = bound_method %Self.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc17: %ptr.0dd = addr_of %Self.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc17: init %empty_tuple.type = call %bound_method.loc17(%addr.loc17)
diff --git a/toolchain/check/testdata/class/redeclaration_introducer.carbon b/toolchain/check/testdata/class/redeclaration_introducer.carbon
index 874840befd27..0a892ba927c3 100644
--- a/toolchain/check/testdata/class/redeclaration_introducer.carbon
+++ b/toolchain/check/testdata/class/redeclaration_introducer.carbon
@@ -28,19 +28,19 @@ abstract class C {}
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op: %A.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -124,7 +124,7 @@ abstract class C {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -136,7 +136,7 @@ abstract class C {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -148,7 +148,7 @@ abstract class C {}
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/reorder.carbon b/toolchain/check/testdata/class/reorder.carbon
index 8cd4fbca1d2e..d25a965c70cd 100644
--- a/toolchain/check/testdata/class/reorder.carbon
+++ b/toolchain/check/testdata/class/reorder.carbon
@@ -37,7 +37,7 @@ class Class {
 // CHECK:STDOUT:   %Class.F: %Class.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -47,18 +47,18 @@ class Class {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -74,8 +74,8 @@ class Class {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -125,7 +125,7 @@ class Class {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -149,7 +149,7 @@ class Class {
 // CHECK:STDOUT: fn @Class.F() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc21_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc21_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/class/reorder_qualified.carbon b/toolchain/check/testdata/class/reorder_qualified.carbon
index 8efca38b54c9..06d5831b2e73 100644
--- a/toolchain/check/testdata/class/reorder_qualified.carbon
+++ b/toolchain/check/testdata/class/reorder_qualified.carbon
@@ -66,7 +66,7 @@ class A {
 // CHECK:STDOUT:   %B.elem: type = unbound_element_type %B, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d1a: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.d49: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.01b: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.11c: type = pattern_type %ptr.01b [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -79,7 +79,7 @@ class A {
 // CHECK:STDOUT:   %D.DF.type: type = fn_type @D.DF [concrete]
 // CHECK:STDOUT:   %D.DF: %D.DF.type = struct_value () [concrete]
 // CHECK:STDOUT:   %D.elem: type = unbound_element_type %D, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.74b: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.d0e: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.321: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.37e: type = pattern_type %ptr.321 [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -89,7 +89,7 @@ class A {
 // CHECK:STDOUT:   %C.CF.type: type = fn_type @C.CF [concrete]
 // CHECK:STDOUT:   %C.CF: %C.CF.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.898: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6c5: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.388: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.093: type = pattern_type %ptr.388 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -99,7 +99,7 @@ class A {
 // CHECK:STDOUT:   %A.AF.type: type = fn_type @A.AF [concrete]
 // CHECK:STDOUT:   %A.AF: %A.AF.type = struct_value () [concrete]
 // CHECK:STDOUT:   %A.elem: type = unbound_element_type %A, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -111,40 +111,40 @@ class A {
 // CHECK:STDOUT:   %struct_type.a.a6c: type = struct_type {.a: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %A.val: %A = struct_value (%int_1.5d2) [concrete]
 // CHECK:STDOUT:   %pattern_type.98e: type = pattern_type %B [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct_type.b.a15: type = struct_type {.b: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %B.val: %B = struct_value (%int_2.ef8) [concrete]
 // CHECK:STDOUT:   %pattern_type.6d8: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct_type.c.5b8: type = struct_type {.c: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value (%int_3.822) [concrete]
 // CHECK:STDOUT:   %pattern_type.d58: type = pattern_type %D [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
 // CHECK:STDOUT:   %struct_type.d.3ea: type = struct_type {.d: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %D.val: %D = struct_value (%int_4.940) [concrete]
 // CHECK:STDOUT: }
@@ -160,8 +160,8 @@ class A {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -247,7 +247,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.ba9 [concrete = constants.%complete_type.fd7]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -268,7 +268,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d1a]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d49]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.b.0a3 [concrete = constants.%complete_type.ba8]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -292,7 +292,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.898]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6c5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.c.b66 [concrete = constants.%complete_type.836]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -317,7 +317,7 @@ class A {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.74b]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d0e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.d.b7b [concrete = constants.%complete_type.860]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -350,10 +350,10 @@ class A {
 // CHECK:STDOUT:   %a.var: ref %A = var %a.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc33_25.1: %struct_type.a.a6c = struct_literal (%int_1)
-// CHECK:STDOUT:   %impl.elem0.loc33: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc33_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc33 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc33: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc33_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc33 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc33: <specific function> = specific_function %impl.elem0.loc33, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc33_25.2: <bound method> = bound_method %int_1, %specific_fn.loc33 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc33_25.2: <bound method> = bound_method %int_1, %specific_fn.loc33 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc33: init %i32 = call %bound_method.loc33_25.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc33_25.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc33 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc33_25.3: ref %i32 = class_element_access %a.var, element0
@@ -370,10 +370,10 @@ class A {
 // CHECK:STDOUT:   %b.var: ref %B = var %b.var_patt
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc34_25.1: %struct_type.b.a15 = struct_literal (%int_2)
-// CHECK:STDOUT:   %impl.elem0.loc34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc34_25.1: <bound method> = bound_method %int_2, %impl.elem0.loc34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc34_25.1: <bound method> = bound_method %int_2, %impl.elem0.loc34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc34: <specific function> = specific_function %impl.elem0.loc34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc34_25.2: <bound method> = bound_method %int_2, %specific_fn.loc34 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc34_25.2: <bound method> = bound_method %int_2, %specific_fn.loc34 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc34: init %i32 = call %bound_method.loc34_25.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc34_25.2: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc34 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc34_25.3: ref %i32 = class_element_access %b.var, element0
@@ -390,10 +390,10 @@ class A {
 // CHECK:STDOUT:   %c.var: ref %C = var %c.var_patt
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc35_25.1: %struct_type.c.5b8 = struct_literal (%int_3)
-// CHECK:STDOUT:   %impl.elem0.loc35: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc35_25.1: <bound method> = bound_method %int_3, %impl.elem0.loc35 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc35: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc35_25.1: <bound method> = bound_method %int_3, %impl.elem0.loc35 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc35: <specific function> = specific_function %impl.elem0.loc35, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc35_25.2: <bound method> = bound_method %int_3, %specific_fn.loc35 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc35_25.2: <bound method> = bound_method %int_3, %specific_fn.loc35 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc35: init %i32 = call %bound_method.loc35_25.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc35_25.2: init %i32 = converted %int_3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc35 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc35_25.3: ref %i32 = class_element_access %c.var, element0
@@ -410,10 +410,10 @@ class A {
 // CHECK:STDOUT:   %d.var: ref %D = var %d.var_patt
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
 // CHECK:STDOUT:   %.loc36_25.1: %struct_type.d.3ea = struct_literal (%int_4)
-// CHECK:STDOUT:   %impl.elem0.loc36: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc36_25.1: <bound method> = bound_method %int_4, %impl.elem0.loc36 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc36: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc36_25.1: <bound method> = bound_method %int_4, %impl.elem0.loc36 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc36: <specific function> = specific_function %impl.elem0.loc36, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc36_25.2: <bound method> = bound_method %int_4, %specific_fn.loc36 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc36_25.2: <bound method> = bound_method %int_4, %specific_fn.loc36 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc36: init %i32 = call %bound_method.loc36_25.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc36_25.2: init %i32 = converted %int_4, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc36 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc36_25.3: ref %i32 = class_element_access %d.var, element0
diff --git a/toolchain/check/testdata/class/scope.carbon b/toolchain/check/testdata/class/scope.carbon
index 942b6e590e90..dc2eb173f6f3 100644
--- a/toolchain/check/testdata/class/scope.carbon
+++ b/toolchain/check/testdata/class/scope.carbon
@@ -47,7 +47,7 @@ fn Run() {
 // CHECK:STDOUT:   %Class.G: %Class.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -57,32 +57,32 @@ fn Run() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %Run.type: type = fn_type @Run [concrete]
 // CHECK:STDOUT:   %Run: %Run.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -96,8 +96,8 @@ fn Run() {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -159,7 +159,7 @@ fn Run() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -172,10 +172,10 @@ fn Run() {
 // CHECK:STDOUT: fn @Class.F() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc17_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc17_13.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc17_13.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc17_13.2: %i32 = converted %int_1, %.loc17_13.1 [concrete = constants.%int_1.5d2]
@@ -196,10 +196,10 @@ fn Run() {
 // CHECK:STDOUT: fn @F() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc26_11.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc26_11.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc26_11.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc26_11.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc26_11.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc26_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc26_11.2: %i32 = converted %int_2, %.loc26_11.1 [concrete = constants.%int_2.ef8]
@@ -235,13 +235,13 @@ fn Run() {
 // CHECK:STDOUT:     %i32.loc31: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %i32 = bind_name b, %b.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc31: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc31: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc31: <bound method> = bound_method %b.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc31: %ptr.235 = addr_of %b.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc31: init %empty_tuple.type = call %bound_method.loc31(%addr.loc31)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc30: <bound method> = bound_method %a.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc30: %ptr.235 = addr_of %a.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc30: init %empty_tuple.type = call %bound_method.loc30(%addr.loc30)
diff --git a/toolchain/check/testdata/class/self_conversion.carbon b/toolchain/check/testdata/class/self_conversion.carbon
index ce99702fd09b..9eb0ca3d8f77 100644
--- a/toolchain/check/testdata/class/self_conversion.carbon
+++ b/toolchain/check/testdata/class/self_conversion.carbon
@@ -48,7 +48,7 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Base.elem: type = unbound_element_type %Base, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -63,7 +63,7 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Derived.SelfBase: %Derived.SelfBase.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Derived.AddrSelfBase.type: type = fn_type @Derived.AddrSelfBase [concrete]
 // CHECK:STDOUT:   %Derived.AddrSelfBase: %Derived.AddrSelfBase.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -73,18 +73,18 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %Call.type: type = fn_type @Call [concrete]
@@ -102,8 +102,8 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -200,7 +200,7 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a [concrete = constants.%complete_type.fd7]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -242,7 +242,7 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.b1e [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -273,7 +273,7 @@ fn Call(p: Derived*) -> i32 {
 // CHECK:STDOUT:   %a.ref: %Base.elem = name_ref a, @Base.%.loc16 [concrete = @Base.%.loc16]
 // CHECK:STDOUT:   %.loc31_10: ref %i32 = class_element_access %.loc31_4, element0
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc31_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc31_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/class/static_method.carbon b/toolchain/check/testdata/class/static_method.carbon
index 16521c5332be..fde2a14c5da0 100644
--- a/toolchain/check/testdata/class/static_method.carbon
+++ b/toolchain/check/testdata/class/static_method.carbon
@@ -35,7 +35,7 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %Class.F: %Class.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -108,7 +108,7 @@ fn Run() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/class/syntactic_merge_literal.carbon b/toolchain/check/testdata/class/syntactic_merge_literal.carbon
index ad4ce590e7b1..47826b22c369 100644
--- a/toolchain/check/testdata/class/syntactic_merge_literal.carbon
+++ b/toolchain/check/testdata/class/syntactic_merge_literal.carbon
@@ -50,7 +50,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %C.506: type = class_type @C, @C(%a) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.1ba: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.2a5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic]
 // CHECK:STDOUT:   %ptr.128: type = ptr_type %C.506 [symbolic]
 // CHECK:STDOUT:   %pattern_type.d64: type = pattern_type %ptr.128 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%a) [symbolic]
@@ -60,18 +60,18 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %int_1000.ff9: Core.IntLiteral = int_value 1000 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1000.ff9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1000.ff9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1000.ff9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1000.1b6: %i32 = int_value 1000 [concrete]
 // CHECK:STDOUT:   %C.262: type = class_type @C, @C(%int_1000.1b6) [concrete]
@@ -80,7 +80,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %D.type: type = generic_class_type @D [concrete]
 // CHECK:STDOUT:   %D.generic: %D.type = struct_value () [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D, @D(%b) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.5ad: <witness> = impl_witness @D.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.184: <witness> = impl_witness @D.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic]
 // CHECK:STDOUT:   %ptr.779: type = ptr_type %D [symbolic]
 // CHECK:STDOUT:   %pattern_type.bf6: type = pattern_type %ptr.779 [symbolic]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%b) [symbolic]
@@ -98,8 +98,8 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -126,7 +126,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %C.ref.loc5: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %int_1000.loc5: Core.IntLiteral = int_value 1000 [concrete = constants.%int_1000.ff9]
-// CHECK:STDOUT:       %impl.elem0.loc5: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:       %impl.elem0.loc5: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:       %bound_method.loc5_20.1: <bound method> = bound_method %int_1000.loc5, %impl.elem0.loc5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:       %specific_fn.loc5: <specific function> = specific_function %impl.elem0.loc5, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc5_20.2: <bound method> = bound_method %int_1000.loc5, %specific_fn.loc5 [concrete = constants.%bound_method]
@@ -144,7 +144,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %C.ref.loc6: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %int_1000.loc6: Core.IntLiteral = int_value 1000 [concrete = constants.%int_1000.ff9]
-// CHECK:STDOUT:       %impl.elem0.loc6: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:       %impl.elem0.loc6: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:       %bound_method.loc6_20.1: <bound method> = bound_method %int_1000.loc6, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:       %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc6_20.2: <bound method> = bound_method %int_1000.loc6, %specific_fn.loc6 [concrete = constants.%bound_method]
@@ -160,7 +160,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%a.loc4_9.2: %i32) {
 // CHECK:STDOUT:   %a: %i32 = bind_symbolic_name a, 0 [symbolic = %a (constants.%a)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%a) [symbolic = %C (constants.%C.506)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%a) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -189,7 +189,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: generic impl @D.as.Destroy.impl(@D.%b.loc6: %C.262) {
 // CHECK:STDOUT:   %b: %C.262 = bind_symbolic_name b, 0 [symbolic = %b (constants.%b)]
 // CHECK:STDOUT:   %D: type = class_type @D, @D(%b) [symbolic = %D (constants.%D)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @D.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5ad)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @D.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.184)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%b) [symbolic = %D.as.Destroy.impl.Op.type (constants.%D.as.Destroy.impl.Op.type)]
@@ -224,7 +224,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.506 [symbolic = @C.as.Destroy.impl.%C (constants.%C.506)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%a) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%a) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -242,7 +242,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D [symbolic = @D.as.Destroy.impl.%D (constants.%D)]
 // CHECK:STDOUT:     impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @D.as.Destroy.impl(constants.%b) [symbolic = @D.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.5ad)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @D.as.Destroy.impl(constants.%b) [symbolic = @D.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.184)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -280,7 +280,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%a) {
 // CHECK:STDOUT:   %a => constants.%a
 // CHECK:STDOUT:   %C => constants.%C.506
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1ba
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2a5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%a) {
@@ -303,7 +303,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: specific @D.as.Destroy.impl(constants.%b) {
 // CHECK:STDOUT:   %b => constants.%b
 // CHECK:STDOUT:   %D => constants.%D
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5ad
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.184
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @D.as.Destroy.impl.Op(constants.%b) {
@@ -328,7 +328,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %C.506: type = class_type @C, @C(%a) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.1ba: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.2a5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic]
 // CHECK:STDOUT:   %ptr.128: type = ptr_type %C.506 [symbolic]
 // CHECK:STDOUT:   %pattern_type.d64: type = pattern_type %ptr.128 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%a) [symbolic]
@@ -338,18 +338,18 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %int_1000.ff9: Core.IntLiteral = int_value 1000 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1000.ff9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1000.ff9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1000.ff9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1000.1b6: %i32 = int_value 1000 [concrete]
 // CHECK:STDOUT:   %C.262: type = class_type @C, @C(%int_1000.1b6) [concrete]
@@ -360,7 +360,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %D.type.bbd080.2: type = generic_class_type @D.loc13 [concrete]
 // CHECK:STDOUT:   %D.generic.4e2319.2: %D.type.bbd080.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %D.126b2d.2: type = class_type @D.loc13, @D.loc13(%b) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.5ad: <witness> = impl_witness @D.loc13.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.184: <witness> = impl_witness @D.loc13.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic]
 // CHECK:STDOUT:   %ptr.779: type = ptr_type %D.126b2d.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.bf6: type = pattern_type %ptr.779 [symbolic]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%b) [symbolic]
@@ -378,8 +378,8 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -406,7 +406,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %int_1000: Core.IntLiteral = int_value 1000 [concrete = constants.%int_1000.ff9]
-// CHECK:STDOUT:       %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:       %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:       %bound_method.loc5_19.1: <bound method> = bound_method %int_1000, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc5_19.2: <bound method> = bound_method %int_1000, %specific_fn [concrete = constants.%bound_method]
@@ -424,7 +424,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %int_1000: Core.IntLiteral = int_value 1000 [concrete = constants.%int_1000.ff9]
-// CHECK:STDOUT:       %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:       %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:       %bound_method.loc13_20.1: <bound method> = bound_method %int_1000, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc13_20.2: <bound method> = bound_method %int_1000, %specific_fn [concrete = constants.%bound_method]
@@ -440,7 +440,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%a.loc4_9.2: %i32) {
 // CHECK:STDOUT:   %a: %i32 = bind_symbolic_name a, 0 [symbolic = %a (constants.%a)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%a) [symbolic = %C (constants.%C.506)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%a) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%a) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -469,7 +469,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: generic impl @D.as.Destroy.impl(@D.loc13.%b.loc13_9.2: %C.262) {
 // CHECK:STDOUT:   %b: %C.262 = bind_symbolic_name b, 0 [symbolic = %b (constants.%b)]
 // CHECK:STDOUT:   %D: type = class_type @D.loc13, @D.loc13(%b) [symbolic = %D (constants.%D.126b2d.2)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @D.loc13.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5ad)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @D.loc13.%Destroy.impl_witness_table, @D.as.Destroy.impl(%b) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.184)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op, @D.as.Destroy.impl(%b) [symbolic = %D.as.Destroy.impl.Op.type (constants.%D.as.Destroy.impl.Op.type)]
@@ -504,7 +504,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.506 [symbolic = @C.as.Destroy.impl.%C (constants.%C.506)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%a) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%a) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -528,7 +528,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%D.126b2d.2 [symbolic = @D.as.Destroy.impl.%D (constants.%D.126b2d.2)]
 // CHECK:STDOUT:     impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @D.as.Destroy.impl(constants.%b) [symbolic = @D.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.5ad)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @D.as.Destroy.impl(constants.%b) [symbolic = @D.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.184)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -566,7 +566,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%a) {
 // CHECK:STDOUT:   %a => constants.%a
 // CHECK:STDOUT:   %C => constants.%C.506
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1ba
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2a5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%a) {
@@ -593,7 +593,7 @@ class D(b:! C(1_000)) {}
 // CHECK:STDOUT: specific @D.as.Destroy.impl(constants.%b) {
 // CHECK:STDOUT:   %b => constants.%b
 // CHECK:STDOUT:   %D => constants.%D.126b2d.2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5ad
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.184
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @D.as.Destroy.impl.Op(constants.%b) {
diff --git a/toolchain/check/testdata/class/virtual_modifiers.carbon b/toolchain/check/testdata/class/virtual_modifiers.carbon
index 06f7b2d91267..cf3541f9881d 100644
--- a/toolchain/check/testdata/class/virtual_modifiers.carbon
+++ b/toolchain/check/testdata/class/virtual_modifiers.carbon
@@ -525,7 +525,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.H: %Base.H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -540,7 +540,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Abstract.J: %Abstract.J.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Abstract.K.type: type = fn_type @Abstract.K [concrete]
 // CHECK:STDOUT:   %Abstract.K: %Abstract.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9d1: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2c5: <witness> = impl_witness @Abstract.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Abstract [concrete]
 // CHECK:STDOUT:   %pattern_type.f31: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Abstract.as.Destroy.impl.Op.type: type = fn_type @Abstract.as.Destroy.impl.Op [concrete]
@@ -612,7 +612,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -643,7 +643,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Abstract [concrete = constants.%Abstract]
 // CHECK:STDOUT:   impl_decl @Abstract.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Abstract.as.Destroy.impl.%Abstract.as.Destroy.impl.Op.decl), @Abstract.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d1]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2c5]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Abstract.vtable [concrete = constants.%Abstract.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -689,7 +689,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Derived.H: %Derived.H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -771,7 +771,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.96c [concrete = constants.%complete_type.0e2]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -978,7 +978,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.val: %Base = struct_value (%Base.vtable_ptr) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Abstract: type = class_type @Abstract [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2fb: <witness> = impl_witness imports.%Destroy.impl_witness_table.37d [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.657: <witness> = impl_witness imports.%Destroy.impl_witness_table.986 [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.f03: type = ptr_type %Base [concrete]
@@ -1000,19 +1000,19 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Modifiers.import_ref.1f3 = import_ref Modifiers//default, inst18 [no loc], unloaded
 // CHECK:STDOUT:   %Modifiers.import_ref.2cc = import_ref Modifiers//default, loc5_29, unloaded
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Modifiers.import_ref.fe3: <witness> = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Destroy.impl_witness.2fb]
+// CHECK:STDOUT:   %Modifiers.import_ref.da1: <witness> = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Destroy.impl_witness.657]
 // CHECK:STDOUT:   %Modifiers.import_ref.87c: type = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Base]
-// CHECK:STDOUT:   %Modifiers.import_ref.cb9298.1: type = import_ref Modifiers//default, inst31 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Modifiers.import_ref.5f6 = import_ref Modifiers//default, loc8_25, unloaded
+// CHECK:STDOUT:   %Modifiers.import_ref.063034.1: type = import_ref Modifiers//default, inst31 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Modifiers.import_ref.440 = import_ref Modifiers//default, loc8_25, unloaded
 // CHECK:STDOUT:   %Modifiers.import_ref.30bb79.2 = import_ref Modifiers//default, loc12_1, unloaded
 // CHECK:STDOUT:   %Modifiers.import_ref.05ec96.2: <witness> = import_ref Modifiers//default, loc12_1, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Modifiers.import_ref.ee1 = import_ref Modifiers//default, inst75 [no loc], unloaded
 // CHECK:STDOUT:   %Modifiers.import_ref.bf4 = import_ref Modifiers//default, loc9_30, unloaded
 // CHECK:STDOUT:   %Modifiers.import_ref.b87 = import_ref Modifiers//default, loc11_29, unloaded
 // CHECK:STDOUT:   %Modifiers.import_ref.462: type = import_ref Modifiers//default, loc8_25, loaded [concrete = constants.%Abstract]
-// CHECK:STDOUT:   %Modifiers.import_ref.cb9298.2: type = import_ref Modifiers//default, inst31 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Modifiers.import_ref.39f: %Base.as.Destroy.impl.Op.type = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Base.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.37d = impl_witness_table (%Modifiers.import_ref.39f), @Base.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Modifiers.import_ref.063034.2: type = import_ref Modifiers//default, inst31 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Modifiers.import_ref.6d4: %Base.as.Destroy.impl.Op.type = import_ref Modifiers//default, loc4_17, loaded [concrete = constants.%Base.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.986 = impl_witness_table (%Modifiers.import_ref.6d4), @Base.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1026,14 +1026,14 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Base.as.Destroy.impl: imports.%Modifiers.import_ref.87c as imports.%Modifiers.import_ref.cb9298.1 [from "modifiers.carbon"] {
+// CHECK:STDOUT: impl @Base.as.Destroy.impl: imports.%Modifiers.import_ref.87c as imports.%Modifiers.import_ref.063034.1 [from "modifiers.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Modifiers.import_ref.fe3
+// CHECK:STDOUT:   witness = imports.%Modifiers.import_ref.da1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Abstract.as.Destroy.impl: imports.%Modifiers.import_ref.462 as imports.%Modifiers.import_ref.cb9298.2 [from "modifiers.carbon"] {
+// CHECK:STDOUT: impl @Abstract.as.Destroy.impl: imports.%Modifiers.import_ref.462 as imports.%Modifiers.import_ref.063034.2 [from "modifiers.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Modifiers.import_ref.5f6
+// CHECK:STDOUT:   witness = imports.%Modifiers.import_ref.440
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @Base [from "modifiers.carbon"] {
@@ -1097,7 +1097,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %A1.F: %A1.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.169: <witness> = impl_witness @A1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6f7: <witness> = impl_witness @A1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.678: type = ptr_type %A1 [concrete]
 // CHECK:STDOUT:   %pattern_type.d72: type = pattern_type %ptr.678 [concrete]
 // CHECK:STDOUT:   %A1.as.Destroy.impl.Op.type: type = fn_type @A1.as.Destroy.impl.Op [concrete]
@@ -1111,7 +1111,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.b21: type = pattern_type %A2 [concrete]
 // CHECK:STDOUT:   %A2.F.type: type = fn_type @A2.F [concrete]
 // CHECK:STDOUT:   %A2.F: %A2.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ed9: <witness> = impl_witness @A2.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.c44: <witness> = impl_witness @A2.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.590: type = ptr_type %A2 [concrete]
 // CHECK:STDOUT:   %pattern_type.2c5: type = pattern_type %ptr.590 [concrete]
 // CHECK:STDOUT:   %A2.as.Destroy.impl.Op.type: type = fn_type @A2.as.Destroy.impl.Op [concrete]
@@ -1185,7 +1185,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A1 [concrete = constants.%A1]
 // CHECK:STDOUT:   impl_decl @A1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A1.as.Destroy.impl.%A1.as.Destroy.impl.Op.decl), @A1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.169]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6f7]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @A1.vtable [concrete = constants.%A1.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -1210,7 +1210,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A2 [concrete = constants.%A2]
 // CHECK:STDOUT:   impl_decl @A2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A2.as.Destroy.impl.%A2.as.Destroy.impl.Op.decl), @A2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ed9]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c44]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @A2.vtable [concrete = constants.%A2.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.a6f]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -1250,7 +1250,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %B1.F: %B1.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.20e: <witness> = impl_witness @B1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.d5d: <witness> = impl_witness @B1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.890: type = ptr_type %B1 [concrete]
 // CHECK:STDOUT:   %pattern_type.b78: type = pattern_type %ptr.890 [concrete]
 // CHECK:STDOUT:   %B1.as.Destroy.impl.Op.type: type = fn_type @B1.as.Destroy.impl.Op [concrete]
@@ -1264,7 +1264,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.b19: type = pattern_type %B2 [concrete]
 // CHECK:STDOUT:   %B2.F.type: type = fn_type @B2.F [concrete]
 // CHECK:STDOUT:   %B2.F: %B2.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.594: <witness> = impl_witness @B2.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.643: <witness> = impl_witness @B2.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.afe: type = ptr_type %B2 [concrete]
 // CHECK:STDOUT:   %pattern_type.98e: type = pattern_type %ptr.afe [concrete]
 // CHECK:STDOUT:   %B2.as.Destroy.impl.Op.type: type = fn_type @B2.as.Destroy.impl.Op [concrete]
@@ -1277,7 +1277,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.F.type: type = fn_type @C.F [concrete]
 // CHECK:STDOUT:   %C.F: %C.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1385,7 +1385,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B1 [concrete = constants.%B1]
 // CHECK:STDOUT:   impl_decl @B1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B1.as.Destroy.impl.%B1.as.Destroy.impl.Op.decl), @B1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.20e]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.d5d]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @B1.vtable [concrete = constants.%B1.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -1410,7 +1410,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B2 [concrete = constants.%B2]
 // CHECK:STDOUT:   impl_decl @B2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B2.as.Destroy.impl.%B2.as.Destroy.impl.Op.decl), @B2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.594]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.643]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @B2.vtable [concrete = constants.%B2.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.508 [concrete = constants.%complete_type.5ac]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -1438,7 +1438,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @C.vtable [concrete = constants.%C.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.421 [concrete = constants.%complete_type.066]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -1636,7 +1636,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -1651,36 +1651,36 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct_type.m2.m1.68c: type = struct_type {.m2: %i32, .m1: %i32} [concrete]
 // CHECK:STDOUT:   %Base.vtable_ptr: ref %ptr.454 = vtable_ptr @Base.vtable [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %struct_type.m2.m1.5f2: type = struct_type {.m2: Core.IntLiteral, .m1: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %Base.val: %Base = struct_value (%Base.vtable_ptr, %int_5.0f6, %int_3.822) [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1694,8 +1694,8 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1743,7 +1743,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr.m1.m2 [concrete = constants.%complete_type.cf7]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -1772,10 +1772,10 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %i.var: ref %i32 = var %i.var_patt
 // CHECK:STDOUT:   %int_3.loc12: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc12: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc12_3.1: <bound method> = bound_method %int_3.loc12, %impl.elem0.loc12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc12: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc12_3.1: <bound method> = bound_method %int_3.loc12, %impl.elem0.loc12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc12: <specific function> = specific_function %impl.elem0.loc12, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc12_3.2: <bound method> = bound_method %int_3.loc12, %specific_fn.loc12 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc12_3.2: <bound method> = bound_method %int_3.loc12, %specific_fn.loc12 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc12: init %i32 = call %bound_method.loc12_3.2(%int_3.loc12) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc12_3: init %i32 = converted %int_3.loc12, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc12 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   assign %i.var, %.loc12_3
@@ -1817,18 +1817,18 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %.loc14_35.2: ref %ptr.454 = class_element_access %b2.var, element0
 // CHECK:STDOUT:   %Base.vtable_ptr.loc14: ref %ptr.454 = vtable_ptr @Base.vtable [concrete = constants.%Base.vtable_ptr]
 // CHECK:STDOUT:   %.loc14_35.3: init %ptr.454 = initialize_from %Base.vtable_ptr.loc14 to %.loc14_35.2 [concrete = constants.%Base.vtable_ptr]
-// CHECK:STDOUT:   %impl.elem0.loc14_35.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_35.1: <bound method> = bound_method %int_5, %impl.elem0.loc14_35.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc14_35.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_35.1: <bound method> = bound_method %int_5, %impl.elem0.loc14_35.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc14_35.1: <specific function> = specific_function %impl.elem0.loc14_35.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_35.2: <bound method> = bound_method %int_5, %specific_fn.loc14_35.1 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc14_35.2: <bound method> = bound_method %int_5, %specific_fn.loc14_35.1 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.1: init %i32 = call %bound_method.loc14_35.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc14_35.4: init %i32 = converted %int_5, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.1 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc14_35.5: ref %i32 = class_element_access %b2.var, element2
 // CHECK:STDOUT:   %.loc14_35.6: init %i32 = initialize_from %.loc14_35.4 to %.loc14_35.5 [concrete = constants.%int_5.0f6]
-// CHECK:STDOUT:   %impl.elem0.loc14_35.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_35.3: <bound method> = bound_method %int_3.loc14, %impl.elem0.loc14_35.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc14_35.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_35.3: <bound method> = bound_method %int_3.loc14, %impl.elem0.loc14_35.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc14_35.2: <specific function> = specific_function %impl.elem0.loc14_35.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_35.4: <bound method> = bound_method %int_3.loc14, %specific_fn.loc14_35.2 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc14_35.4: <bound method> = bound_method %int_3.loc14, %specific_fn.loc14_35.2 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.2: init %i32 = call %bound_method.loc14_35.4(%int_3.loc14) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc14_35.7: init %i32 = converted %int_3.loc14, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14_35.2 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc14_35.8: ref %i32 = class_element_access %b2.var, element1
@@ -1842,10 +1842,10 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %m2.ref: %Base.elem = name_ref m2, @Base.%.loc6 [concrete = @Base.%.loc6]
 // CHECK:STDOUT:   %.loc16_5: ref %i32 = class_element_access %b1.ref, element2
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc16: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_9.1: <bound method> = bound_method %int_4, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc16: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_9.1: <bound method> = bound_method %int_4, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %impl.elem0.loc16, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_9.2: <bound method> = bound_method %int_4, %specific_fn.loc16 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc16_9.2: <bound method> = bound_method %int_4, %specific_fn.loc16 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16: init %i32 = call %bound_method.loc16_9.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc16_9: init %i32 = converted %int_4, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   assign %.loc16_5, %.loc16_9
@@ -1855,8 +1855,8 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %b1.var, constants.%Base.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc13: %ptr.11f = addr_of %b1.var
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.call.loc13: init %empty_tuple.type = call %Base.as.Destroy.impl.Op.bound.loc13(%addr.loc13)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %i.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_3.3: <bound method> = bound_method %i.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12: %ptr.235 = addr_of %i.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_3.3(%addr.loc12)
@@ -1869,7 +1869,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base: type = class_type @Base [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -1881,7 +1881,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -1948,7 +1948,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1970,7 +1970,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr.base [concrete = constants.%complete_type.336]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2001,7 +2001,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %AbstractBase.F: %AbstractBase.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ac3: <witness> = impl_witness @AbstractBase.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.45c: <witness> = impl_witness @AbstractBase.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e86: type = ptr_type %AbstractBase [concrete]
 // CHECK:STDOUT:   %pattern_type.35f: type = pattern_type %ptr.e86 [concrete]
 // CHECK:STDOUT:   %AbstractBase.as.Destroy.impl.Op.type: type = fn_type @AbstractBase.as.Destroy.impl.Op [concrete]
@@ -2012,7 +2012,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
 // CHECK:STDOUT:   %AbstractIntermediate: type = class_type @AbstractIntermediate [concrete]
 // CHECK:STDOUT:   %AbstractIntermediate.elem: type = unbound_element_type %AbstractIntermediate, %AbstractBase [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.93a: <witness> = impl_witness @AbstractIntermediate.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6f6: <witness> = impl_witness @AbstractIntermediate.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.fd8: type = ptr_type %AbstractIntermediate [concrete]
 // CHECK:STDOUT:   %pattern_type.28b: type = pattern_type %ptr.fd8 [concrete]
 // CHECK:STDOUT:   %AbstractIntermediate.as.Destroy.impl.Op.type: type = fn_type @AbstractIntermediate.as.Destroy.impl.Op [concrete]
@@ -2025,7 +2025,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -2117,7 +2117,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AbstractBase [concrete = constants.%AbstractBase]
 // CHECK:STDOUT:   impl_decl @AbstractBase.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AbstractBase.as.Destroy.impl.%AbstractBase.as.Destroy.impl.Op.decl), @AbstractBase.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ac3]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.45c]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @AbstractBase.vtable [concrete = constants.%AbstractBase.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2134,7 +2134,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%AbstractIntermediate [concrete = constants.%AbstractIntermediate]
 // CHECK:STDOUT:   impl_decl @AbstractIntermediate.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@AbstractIntermediate.as.Destroy.impl.%AbstractIntermediate.as.Destroy.impl.Op.decl), @AbstractIntermediate.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.93a]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6f6]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @AbstractIntermediate.vtable [concrete = constants.%AbstractIntermediate.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.efd [concrete = constants.%complete_type.2d3]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2161,7 +2161,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.da5 [concrete = constants.%complete_type.f8c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2206,7 +2206,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %VirtualBase.F: %VirtualBase.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8a3: <witness> = impl_witness @VirtualBase.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.262: <witness> = impl_witness @VirtualBase.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e57: type = ptr_type %VirtualBase [concrete]
 // CHECK:STDOUT:   %pattern_type.f17: type = pattern_type %ptr.e57 [concrete]
 // CHECK:STDOUT:   %VirtualBase.as.Destroy.impl.Op.type: type = fn_type @VirtualBase.as.Destroy.impl.Op [concrete]
@@ -2217,7 +2217,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %complete_type.513: <witness> = complete_type_witness %struct_type.vptr [concrete]
 // CHECK:STDOUT:   %VirtualIntermediate: type = class_type @VirtualIntermediate [concrete]
 // CHECK:STDOUT:   %VirtualIntermediate.elem: type = unbound_element_type %VirtualIntermediate, %VirtualBase [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.3cb: <witness> = impl_witness @VirtualIntermediate.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.006: <witness> = impl_witness @VirtualIntermediate.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.7dc: type = ptr_type %VirtualIntermediate [concrete]
 // CHECK:STDOUT:   %pattern_type.906: type = pattern_type %ptr.7dc [concrete]
 // CHECK:STDOUT:   %VirtualIntermediate.as.Destroy.impl.Op.type: type = fn_type @VirtualIntermediate.as.Destroy.impl.Op [concrete]
@@ -2230,7 +2230,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -2322,7 +2322,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%VirtualBase [concrete = constants.%VirtualBase]
 // CHECK:STDOUT:   impl_decl @VirtualBase.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@VirtualBase.as.Destroy.impl.%VirtualBase.as.Destroy.impl.Op.decl), @VirtualBase.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8a3]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.262]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @VirtualBase.vtable [concrete = constants.%VirtualBase.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2339,7 +2339,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%VirtualIntermediate [concrete = constants.%VirtualIntermediate]
 // CHECK:STDOUT:   impl_decl @VirtualIntermediate.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@VirtualIntermediate.as.Destroy.impl.%VirtualIntermediate.as.Destroy.impl.Op.decl), @VirtualIntermediate.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.3cb]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.006]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @VirtualIntermediate.vtable [concrete = constants.%VirtualIntermediate.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.61e [concrete = constants.%complete_type.f09]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2366,7 +2366,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.43c [concrete = constants.%complete_type.fa6]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2411,7 +2411,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -2430,7 +2430,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -2506,7 +2506,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2539,7 +2539,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2575,7 +2575,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.af1: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
 // CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
@@ -2583,14 +2583,14 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %T2: type = class_type @T2 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.658: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.a75: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.63e: type = ptr_type %T2 [concrete]
 // CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.e40: type = facet_type <@ImplicitAs, @ImplicitAs(%T1)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.afc: type = facet_type <@ImplicitAs, @ImplicitAs(%T1)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness file.%ImplicitAs.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.682: type = pattern_type %T2 [concrete]
 // CHECK:STDOUT:   %pattern_type.28b: type = pattern_type %T1 [concrete]
@@ -2601,7 +2601,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.bcc: type = pattern_type %Base [concrete]
 // CHECK:STDOUT:   %Base.F.type: type = fn_type @Base.F [concrete]
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae4: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.31c: <witness> = impl_witness @Base.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.11f: type = ptr_type %Base [concrete]
 // CHECK:STDOUT:   %pattern_type.1b9: type = pattern_type %ptr.11f [concrete]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op [concrete]
@@ -2615,7 +2615,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -2652,7 +2652,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %T1.ref: type = name_ref T1, file.%T1.decl [concrete = constants.%T1]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T1)> [concrete = constants.%ImplicitAs.type.e40]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T1)> [concrete = constants.%ImplicitAs.type.afc]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (@T2.as.ImplicitAs.impl.%T2.as.ImplicitAs.impl.Convert.decl), @T2.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness]
@@ -2749,7 +2749,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
 // CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.af1]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -2761,7 +2761,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
 // CHECK:STDOUT:   impl_decl @T2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.658]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.a75]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -2786,7 +2786,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Base [concrete = constants.%Base]
 // CHECK:STDOUT:   impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae4]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.31c]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -2818,7 +2818,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.15c]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -3027,7 +3027,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1: type = class_type @T1 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.af1: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
 // CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
@@ -3044,7 +3044,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %Base.F.type.f17: type = fn_type @Base.F, @Base(%T) [symbolic]
 // CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -3067,7 +3067,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -3123,7 +3123,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc7_17.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -3169,7 +3169,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
 // CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.af1]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -3205,7 +3205,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %Base.F.specific_fn.loc9_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc9_1.2 (constants.%Base.F.specific_fn.892)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -3241,7 +3241,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -3323,7 +3323,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -3363,7 +3363,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1.G: %T1.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.af1: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.87b: type = ptr_type %T1 [concrete]
 // CHECK:STDOUT:   %pattern_type.a36: type = pattern_type %ptr.87b [concrete]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
@@ -3374,7 +3374,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T2.elem: type = unbound_element_type %T2, %T1 [concrete]
 // CHECK:STDOUT:   %T2.F.type: type = fn_type @T2.F [concrete]
 // CHECK:STDOUT:   %T2.F: %T2.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.658: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.a75: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.63e: type = ptr_type %T2 [concrete]
 // CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op [concrete]
@@ -3441,7 +3441,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
 // CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.af1]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -3458,7 +3458,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
 // CHECK:STDOUT:   impl_decl @T2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.658]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.a75]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.e14]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -3490,7 +3490,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1.F1: %T1.F1.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ccf: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.af1: <witness> = impl_witness @T1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op: %T1.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
@@ -3503,7 +3503,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
 // CHECK:STDOUT:   %T2.F1.type: type = fn_type @T2.F1 [concrete]
 // CHECK:STDOUT:   %T2.F1: %T2.F1.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.658: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.a75: <witness> = impl_witness @T2.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op: %T2.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %T2.vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete]
@@ -3578,7 +3578,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T1 [concrete = constants.%T1]
 // CHECK:STDOUT:   impl_decl @T1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ccf]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.af1]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -3607,7 +3607,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%T2 [concrete = constants.%T2]
 // CHECK:STDOUT:   impl_decl @T2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.658]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.a75]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete = constants.%T2.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base [concrete = constants.%complete_type.e14]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -4316,7 +4316,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %NonGenericBase.F2: %NonGenericBase.F2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e51: <witness> = impl_witness @NonGenericBase.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.536: <witness> = impl_witness @NonGenericBase.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.806: type = ptr_type %NonGenericBase [concrete]
 // CHECK:STDOUT:   %pattern_type.f69: type = pattern_type %ptr.806 [concrete]
 // CHECK:STDOUT:   %NonGenericBase.as.Destroy.impl.Op.type: type = fn_type @NonGenericBase.as.Destroy.impl.Op [concrete]
@@ -4337,7 +4337,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %GenericDerived.F2: %GenericDerived.F2.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %GenericDerived.F3.type: type = fn_type @GenericDerived.F3, @GenericDerived(%T) [symbolic]
 // CHECK:STDOUT:   %GenericDerived.F3: %GenericDerived.F3.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.885: <witness> = impl_witness @GenericDerived.%Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.301: <witness> = impl_witness @GenericDerived.%Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6eb: type = ptr_type %GenericDerived [symbolic]
 // CHECK:STDOUT:   %pattern_type.d95: type = pattern_type %ptr.6eb [symbolic]
 // CHECK:STDOUT:   %GenericDerived.as.Destroy.impl.Op.type: type = fn_type @GenericDerived.as.Destroy.impl.Op, @GenericDerived.as.Destroy.impl(%T) [symbolic]
@@ -4394,7 +4394,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @GenericDerived.as.Destroy.impl(@GenericDerived.%T.loc9_27.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %GenericDerived: type = class_type @GenericDerived, @GenericDerived(%T) [symbolic = %GenericDerived (constants.%GenericDerived)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericDerived.%Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.885)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericDerived.%Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.301)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %GenericDerived.as.Destroy.impl.Op.type: type = fn_type @GenericDerived.as.Destroy.impl.Op, @GenericDerived.as.Destroy.impl(%T) [symbolic = %GenericDerived.as.Destroy.impl.Op.type (constants.%GenericDerived.as.Destroy.impl.Op.type)]
@@ -4440,7 +4440,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%NonGenericBase [concrete = constants.%NonGenericBase]
 // CHECK:STDOUT:   impl_decl @NonGenericBase.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@NonGenericBase.as.Destroy.impl.%NonGenericBase.as.Destroy.impl.Op.decl), @NonGenericBase.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e51]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.536]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @NonGenericBase.vtable [concrete = constants.%NonGenericBase.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -4493,7 +4493,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%GenericDerived [symbolic = @GenericDerived.as.Destroy.impl.%GenericDerived (constants.%GenericDerived)]
 // CHECK:STDOUT:     impl_decl @GenericDerived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@GenericDerived.as.Destroy.impl.%GenericDerived.as.Destroy.impl.Op.decl), @GenericDerived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(constants.%T) [symbolic = @GenericDerived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.885)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericDerived.as.Destroy.impl(constants.%T) [symbolic = @GenericDerived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.301)]
 // CHECK:STDOUT:     %GenericDerived.F2.specific_fn.loc13_1.1: <specific function> = specific_function %GenericDerived.F2.decl, @GenericDerived.F2(constants.%T) [symbolic = %GenericDerived.F2.specific_fn.loc13_1.2 (constants.%GenericDerived.F2.specific_fn)]
 // CHECK:STDOUT:     %GenericDerived.F3.specific_fn.loc13_1.1: <specific function> = specific_function %GenericDerived.F3.decl, @GenericDerived.F3(constants.%T) [symbolic = %GenericDerived.F3.specific_fn.loc13_1.2 (constants.%GenericDerived.F3.specific_fn)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @GenericDerived.vtable [concrete = constants.%GenericDerived.vtable_decl]
@@ -4608,7 +4608,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @GenericDerived.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %GenericDerived => constants.%GenericDerived
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.885
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.301
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericDerived.as.Destroy.impl.Op(constants.%T) {
@@ -4634,7 +4634,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %GenericBase.F2.414: %GenericBase.F2.type.2ca = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c7e: <witness> = impl_witness @GenericBase.%Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.47f: <witness> = impl_witness @GenericBase.%Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b68: type = ptr_type %GenericBase.018 [symbolic]
 // CHECK:STDOUT:   %pattern_type.bbc: type = pattern_type %ptr.b68 [symbolic]
 // CHECK:STDOUT:   %GenericBase.as.Destroy.impl.Op.type: type = fn_type @GenericBase.as.Destroy.impl.Op, @GenericBase.as.Destroy.impl(%T) [symbolic]
@@ -4662,7 +4662,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %NonGenericDerived.F2: %NonGenericDerived.F2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %NonGenericDerived.F3.type: type = fn_type @NonGenericDerived.F3 [concrete]
 // CHECK:STDOUT:   %NonGenericDerived.F3: %NonGenericDerived.F3.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.330: <witness> = impl_witness @NonGenericDerived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.4c7: <witness> = impl_witness @NonGenericDerived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.821: type = ptr_type %NonGenericDerived [concrete]
 // CHECK:STDOUT:   %pattern_type.eb2: type = pattern_type %ptr.821 [concrete]
 // CHECK:STDOUT:   %NonGenericDerived.as.Destroy.impl.Op.type: type = fn_type @NonGenericDerived.as.Destroy.impl.Op [concrete]
@@ -4702,7 +4702,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @GenericBase.as.Destroy.impl(@GenericBase.%T.loc4_24.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %GenericBase: type = class_type @GenericBase, @GenericBase(%T) [symbolic = %GenericBase (constants.%GenericBase.018)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericBase.%Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c7e)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericBase.%Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.47f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %GenericBase.as.Destroy.impl.Op.type: type = fn_type @GenericBase.as.Destroy.impl.Op, @GenericBase.as.Destroy.impl(%T) [symbolic = %GenericBase.as.Destroy.impl.Op.type (constants.%GenericBase.as.Destroy.impl.Op.type)]
@@ -4781,7 +4781,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%GenericBase.018 [symbolic = @GenericBase.as.Destroy.impl.%GenericBase (constants.%GenericBase.018)]
 // CHECK:STDOUT:     impl_decl @GenericBase.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@GenericBase.as.Destroy.impl.%GenericBase.as.Destroy.impl.Op.decl), @GenericBase.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(constants.%T) [symbolic = @GenericBase.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.c7e)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericBase.as.Destroy.impl(constants.%T) [symbolic = @GenericBase.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.47f)]
 // CHECK:STDOUT:     %GenericBase.F1.specific_fn.loc7_1.1: <specific function> = specific_function %GenericBase.F1.decl, @GenericBase.F1(constants.%T) [symbolic = %GenericBase.F1.specific_fn.loc7_1.2 (constants.%GenericBase.F1.specific_fn.aea)]
 // CHECK:STDOUT:     %GenericBase.F2.specific_fn.loc7_1.1: <specific function> = specific_function %GenericBase.F2.decl, @GenericBase.F2(constants.%T) [symbolic = %GenericBase.F2.specific_fn.loc7_1.2 (constants.%GenericBase.F2.specific_fn.758)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @GenericBase.vtable [concrete = constants.%GenericBase.vtable_decl]
@@ -4822,7 +4822,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%NonGenericDerived [concrete = constants.%NonGenericDerived]
 // CHECK:STDOUT:   impl_decl @NonGenericDerived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@NonGenericDerived.as.Destroy.impl.%NonGenericDerived.as.Destroy.impl.Op.decl), @NonGenericDerived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.330]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.4c7]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @NonGenericDerived.vtable [concrete = constants.%NonGenericDerived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.29a [concrete = constants.%complete_type.b6e]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -4933,7 +4933,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @GenericBase.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %GenericBase => constants.%GenericBase.018
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c7e
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.47f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericBase.as.Destroy.impl.Op(constants.%T) {
@@ -4989,7 +4989,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op: %Base.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.454: type = ptr_type <vtable> [concrete]
@@ -5012,7 +5012,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.550: type = pattern_type %D1 [concrete]
 // CHECK:STDOUT:   %D1.F.type: type = fn_type @D1.F [concrete]
 // CHECK:STDOUT:   %D1.F: %D1.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.087: <witness> = impl_witness @D1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cce: <witness> = impl_witness @D1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.7a4: type = ptr_type %D1 [concrete]
 // CHECK:STDOUT:   %pattern_type.138: type = pattern_type %ptr.7a4 [concrete]
 // CHECK:STDOUT:   %D1.as.Destroy.impl.Op.type: type = fn_type @D1.as.Destroy.impl.Op [concrete]
@@ -5053,7 +5053,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_17.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -5128,7 +5128,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -5172,7 +5172,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
 // CHECK:STDOUT:   impl_decl @D1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D1.as.Destroy.impl.%D1.as.Destroy.impl.Op.decl), @D1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.087]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cce]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @D1.vtable [concrete = constants.%D1.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -5254,7 +5254,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -5303,7 +5303,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -5326,7 +5326,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb8: type = pattern_type %ptr.63e [concrete]
 // CHECK:STDOUT:   %D1.F.type: type = fn_type @D1.F [concrete]
 // CHECK:STDOUT:   %D1.F: %D1.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.087: <witness> = impl_witness @D1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cce: <witness> = impl_witness @D1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.7a4: type = ptr_type %D1 [concrete]
 // CHECK:STDOUT:   %pattern_type.138: type = pattern_type %ptr.7a4 [concrete]
 // CHECK:STDOUT:   %D1.as.Destroy.impl.Op.type: type = fn_type @D1.as.Destroy.impl.Op [concrete]
@@ -5368,7 +5368,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc7_17.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -5445,7 +5445,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %Base.F.specific_fn.loc9_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc9_1.2 (constants.%Base.F.specific_fn.892)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -5484,7 +5484,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D1 [concrete = constants.%D1]
 // CHECK:STDOUT:   impl_decl @D1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D1.as.Destroy.impl.%D1.as.Destroy.impl.Op.decl), @D1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.087]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cce]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @D1.vtable [concrete = constants.%D1.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -5561,7 +5561,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -5605,7 +5605,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F: %Base.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -5625,7 +5625,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F, @Derived(%T) [symbolic]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.fa7: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.4a0: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.178: type = ptr_type %Derived [symbolic]
 // CHECK:STDOUT:   %pattern_type.520: type = pattern_type %ptr.178 [symbolic]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic]
@@ -5671,7 +5671,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_21.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -5700,7 +5700,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Derived.as.Destroy.impl(@Derived.%T.loc7_15.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic = %Derived.as.Destroy.impl.Op.type (constants.%Derived.as.Destroy.impl.Op.type)]
@@ -5757,7 +5757,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -5809,7 +5809,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [symbolic = @Derived.as.Destroy.impl.%Derived (constants.%Derived)]
 // CHECK:STDOUT:     impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:     %Derived.F.specific_fn.loc17_1.1: <specific function> = specific_function %Derived.F.decl, @Derived.F(constants.%T) [symbolic = %Derived.F.specific_fn.loc17_1.2 (constants.%Derived.F.specific_fn)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:     %complete_type.loc17_1.1: <witness> = complete_type_witness constants.%struct_type.base.8ea [symbolic = %complete_type.loc17_1.2 (constants.%complete_type.d5d)]
@@ -5915,7 +5915,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -5956,7 +5956,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Derived => constants.%Derived
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fa7
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl.Op(constants.%T) {
@@ -5981,7 +5981,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -6008,7 +6008,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.423: type = pattern_type %Derived [symbolic]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F, @Derived(%T) [symbolic]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.fa7: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.4a0: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.178: type = ptr_type %Derived [symbolic]
 // CHECK:STDOUT:   %pattern_type.520: type = pattern_type %ptr.178 [symbolic]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic]
@@ -6054,7 +6054,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_21.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -6083,7 +6083,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Derived.as.Destroy.impl(@Derived.%T.loc7_15.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Derived: type = class_type @Derived, @Derived(%T) [symbolic = %Derived (constants.%Derived)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Derived.%Destroy.impl_witness_table, @Derived.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op, @Derived.as.Destroy.impl(%T) [symbolic = %Derived.as.Destroy.impl.Op.type (constants.%Derived.as.Destroy.impl.Op.type)]
@@ -6137,7 +6137,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -6194,7 +6194,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Derived [symbolic = @Derived.as.Destroy.impl.%Derived (constants.%Derived)]
 // CHECK:STDOUT:     impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fa7)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Derived.as.Destroy.impl(constants.%T) [symbolic = @Derived.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.4a0)]
 // CHECK:STDOUT:     %Derived.F.specific_fn.loc10_1.1: <specific function> = specific_function %Derived.F.decl, @Derived.F(constants.%T) [symbolic = %Derived.F.specific_fn.loc10_1.2 (constants.%Derived.F.specific_fn)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:     %complete_type.loc10_1.1: <witness> = complete_type_witness constants.%struct_type.base.d96 [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.5dc)]
@@ -6299,7 +6299,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -6362,7 +6362,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Derived => constants.%Derived
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fa7
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Derived.as.Destroy.impl.Op(constants.%T) {
@@ -6386,7 +6386,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Base.F.e26: %Base.F.type.f17 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f8: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ef5: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b7c: type = ptr_type %Base.370 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8d4: type = pattern_type %ptr.b7c [symbolic]
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic]
@@ -6407,7 +6407,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Derived [concrete]
 // CHECK:STDOUT:   %Derived.F.type: type = fn_type @Derived.F [concrete]
 // CHECK:STDOUT:   %Derived.F: %Derived.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e52: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.62a: <witness> = impl_witness @Derived.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.404: type = ptr_type %Derived [concrete]
 // CHECK:STDOUT:   %pattern_type.605: type = pattern_type %ptr.404 [concrete]
 // CHECK:STDOUT:   %Derived.as.Destroy.impl.Op.type: type = fn_type @Derived.as.Destroy.impl.Op [concrete]
@@ -6447,7 +6447,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @Base.as.Destroy.impl(@Base.%T.loc4_21.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.370)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Base.%Destroy.impl_witness_table, @Base.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Base.as.Destroy.impl.Op.type: type = fn_type @Base.as.Destroy.impl.Op, @Base.as.Destroy.impl(%T) [symbolic = %Base.as.Destroy.impl.Op.type (constants.%Base.as.Destroy.impl.Op.type)]
@@ -6512,7 +6512,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Base.370 [symbolic = @Base.as.Destroy.impl.%Base (constants.%Base.370)]
 // CHECK:STDOUT:     impl_decl @Base.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Base.as.Destroy.impl.%Base.as.Destroy.impl.Op.decl), @Base.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.9f8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Base.as.Destroy.impl(constants.%T) [symbolic = @Base.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ef5)]
 // CHECK:STDOUT:     %Base.F.specific_fn.loc6_1.1: <specific function> = specific_function %Base.F.decl, @Base.F(constants.%T) [symbolic = %Base.F.specific_fn.loc6_1.2 (constants.%Base.F.specific_fn.892)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @Base.vtable [concrete = constants.%Base.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -6543,7 +6543,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Derived [concrete = constants.%Derived]
 // CHECK:STDOUT:   impl_decl @Derived.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Derived.as.Destroy.impl.%Derived.as.Destroy.impl.Op.decl), @Derived.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e52]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.62a]
 // CHECK:STDOUT:   %vtable_decl: ref %ptr.454 = vtable_decl @Derived.vtable [concrete = constants.%Derived.vtable_decl]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.base.fda [concrete = constants.%complete_type.65a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
@@ -6605,7 +6605,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @Base.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Base => constants.%Base.370
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ef5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Base.as.Destroy.impl.Op(constants.%T) {
@@ -6968,7 +6968,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1.F.0df085.1: %T1.F.type.ebcc3f.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.fdd: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.069: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic]
 // CHECK:STDOUT:   %ptr.997: type = ptr_type %T1.18aea2.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic]
@@ -6990,7 +6990,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1.F.specific_fn.1e2a8c.2: <specific function> = specific_function %T1.F.0df085.2, @T1.F(%G2) [symbolic]
 // CHECK:STDOUT:   %require_complete.86d019.2: <witness> = require_complete_type %T1.18aea2.2 [symbolic]
 // CHECK:STDOUT:   %T2.elem: type = unbound_element_type %T2, %T1.18aea2.2 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.fb2: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.8b2: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic]
 // CHECK:STDOUT:   %ptr.112: type = ptr_type %T2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8f6: type = pattern_type %ptr.112 [symbolic]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic]
@@ -7033,7 +7033,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%G1.loc4_15.2: type) {
 // CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
 // CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.069)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
@@ -7062,7 +7062,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @T2.as.Destroy.impl(@T2.%G2.loc8_10.2: type) {
 // CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
 // CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic = %T2 (constants.%T2)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.8b2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic = %T2.as.Destroy.impl.Op.type (constants.%T2.as.Destroy.impl.Op.type)]
@@ -7111,7 +7111,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1.18aea2.1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1.18aea2.1)]
 // CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%G1) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%G1) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.069)]
 // CHECK:STDOUT:     %T1.F.specific_fn.loc6_1.1: <specific function> = specific_function %T1.F.decl, @T1.F(constants.%G1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn.1e2a8c.1)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -7146,7 +7146,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [symbolic = @T2.as.Destroy.impl.%T2 (constants.%T2)]
 // CHECK:STDOUT:     impl_decl @T2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T2.as.Destroy.impl(constants.%G2) [symbolic = @T2.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T2.as.Destroy.impl(constants.%G2) [symbolic = @T2.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.8b2)]
 // CHECK:STDOUT:     %T1.F.specific_fn.loc10_1.1: <specific function> = specific_function constants.%T1.F.0df085.2, @T1.F(constants.%G2) [symbolic = %T1.F.specific_fn.loc10_1.2 (constants.%T1.F.specific_fn.1e2a8c.2)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T2.vtable [concrete = constants.%T2.vtable_decl]
 // CHECK:STDOUT:     %complete_type.loc10_1.1: <witness> = complete_type_witness constants.%struct_type.base [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.987)]
@@ -7227,7 +7227,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%G1) {
 // CHECK:STDOUT:   %G1 => constants.%G1
 // CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fdd
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.069
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%G1) {
@@ -7262,7 +7262,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @T2.as.Destroy.impl(constants.%G2) {
 // CHECK:STDOUT:   %G2 => constants.%G2
 // CHECK:STDOUT:   %T2 => constants.%T2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fb2
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.8b2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T2.as.Destroy.impl.Op(constants.%G2) {
@@ -7286,7 +7286,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1.F.0df085.1: %T1.F.type.ebcc3f.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.fdd: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.069: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic]
 // CHECK:STDOUT:   %ptr.997: type = ptr_type %T1.18aea2.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.f06: type = pattern_type %ptr.997 [symbolic]
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic]
@@ -7309,7 +7309,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T1.F.specific_fn.1e2a8c.2: <specific function> = specific_function %T1.F.0df085.2, @T1.F(%G2) [symbolic]
 // CHECK:STDOUT:   %require_complete.86d019.2: <witness> = require_complete_type %T1.18aea2.2 [symbolic]
 // CHECK:STDOUT:   %T3.elem: type = unbound_element_type %T3, %T1.18aea2.2 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.7f3: <witness> = impl_witness @T3.%Destroy.impl_witness_table, @T3.as.Destroy.impl(%G2) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.aa6: <witness> = impl_witness @T3.%Destroy.impl_witness_table, @T3.as.Destroy.impl(%G2) [symbolic]
 // CHECK:STDOUT:   %ptr.625: type = ptr_type %T3 [symbolic]
 // CHECK:STDOUT:   %pattern_type.753: type = pattern_type %ptr.625 [symbolic]
 // CHECK:STDOUT:   %T3.as.Destroy.impl.Op.type: type = fn_type @T3.as.Destroy.impl.Op, @T3.as.Destroy.impl(%G2) [symbolic]
@@ -7317,7 +7317,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:   %T3.vtable_decl: ref %ptr.454 = vtable_decl @T3.vtable [concrete]
 // CHECK:STDOUT:   %struct_type.base: type = struct_type {.base: %T1.18aea2.2} [symbolic]
 // CHECK:STDOUT:   %complete_type.987: <witness> = complete_type_witness %struct_type.base [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.fb2: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.8b2: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic]
 // CHECK:STDOUT:   %ptr.112: type = ptr_type %T2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.8f6: type = pattern_type %ptr.112 [symbolic]
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic]
@@ -7359,7 +7359,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @T1.as.Destroy.impl(@T1.%G1.loc4_15.2: type) {
 // CHECK:STDOUT:   %G1: type = bind_symbolic_name G1, 0 [symbolic = %G1 (constants.%G1)]
 // CHECK:STDOUT:   %T1: type = class_type @T1, @T1(%G1) [symbolic = %T1 (constants.%T1.18aea2.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T1.%Destroy.impl_witness_table, @T1.as.Destroy.impl(%G1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.069)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T1.as.Destroy.impl.Op.type: type = fn_type @T1.as.Destroy.impl.Op, @T1.as.Destroy.impl(%G1) [symbolic = %T1.as.Destroy.impl.Op.type (constants.%T1.as.Destroy.impl.Op.type)]
@@ -7388,7 +7388,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @T3.as.Destroy.impl(@T2.%G2.loc8_10.2: type) {
 // CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
 // CHECK:STDOUT:   %T3: type = class_type @T3, @T3(%G2) [symbolic = %T3 (constants.%T3)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T3.%Destroy.impl_witness_table, @T3.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7f3)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T3.%Destroy.impl_witness_table, @T3.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.aa6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T3.as.Destroy.impl.Op.type: type = fn_type @T3.as.Destroy.impl.Op, @T3.as.Destroy.impl(%G2) [symbolic = %T3.as.Destroy.impl.Op.type (constants.%T3.as.Destroy.impl.Op.type)]
@@ -7417,7 +7417,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: generic impl @T2.as.Destroy.impl(@T2.%G2.loc8_10.2: type) {
 // CHECK:STDOUT:   %G2: type = bind_symbolic_name G2, 0 [symbolic = %G2 (constants.%G2)]
 // CHECK:STDOUT:   %T2: type = class_type @T2, @T2(%G2) [symbolic = %T2 (constants.%T2)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @T2.%Destroy.impl_witness_table, @T2.as.Destroy.impl(%G2) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.8b2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T2.as.Destroy.impl.Op.type: type = fn_type @T2.as.Destroy.impl.Op, @T2.as.Destroy.impl(%G2) [symbolic = %T2.as.Destroy.impl.Op.type (constants.%T2.as.Destroy.impl.Op.type)]
@@ -7466,7 +7466,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T1.18aea2.1 [symbolic = @T1.as.Destroy.impl.%T1 (constants.%T1.18aea2.1)]
 // CHECK:STDOUT:     impl_decl @T1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T1.as.Destroy.impl.%T1.as.Destroy.impl.Op.decl), @T1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%G1) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fdd)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T1.as.Destroy.impl(constants.%G1) [symbolic = @T1.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.069)]
 // CHECK:STDOUT:     %T1.F.specific_fn.loc6_1.1: <specific function> = specific_function %T1.F.decl, @T1.F(constants.%G1) [symbolic = %T1.F.specific_fn.loc6_1.2 (constants.%T1.F.specific_fn.1e2a8c.1)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T1.vtable [concrete = constants.%T1.vtable_decl]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%struct_type.vptr [concrete = constants.%complete_type.513]
@@ -7490,7 +7490,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T2 [symbolic = @T2.as.Destroy.impl.%T2 (constants.%T2)]
 // CHECK:STDOUT:     impl_decl @T2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T2.as.Destroy.impl.%T2.as.Destroy.impl.Op.decl), @T2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T2.as.Destroy.impl(constants.%G2) [symbolic = @T2.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.fb2)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T2.as.Destroy.impl(constants.%G2) [symbolic = @T2.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.8b2)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -7523,7 +7523,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%T3 [symbolic = @T3.as.Destroy.impl.%T3 (constants.%T3)]
 // CHECK:STDOUT:     impl_decl @T3.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@T3.as.Destroy.impl.%T3.as.Destroy.impl.Op.decl), @T3.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T3.as.Destroy.impl(constants.%G2) [symbolic = @T3.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7f3)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @T3.as.Destroy.impl(constants.%G2) [symbolic = @T3.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.aa6)]
 // CHECK:STDOUT:     %T1.F.specific_fn.loc11_3.1: <specific function> = specific_function constants.%T1.F.0df085.2, @T1.F(constants.%G2) [symbolic = %T1.F.specific_fn.loc11_3.2 (constants.%T1.F.specific_fn.1e2a8c.2)]
 // CHECK:STDOUT:     %vtable_decl: ref %ptr.454 = vtable_decl @T3.vtable [concrete = constants.%T3.vtable_decl]
 // CHECK:STDOUT:     %complete_type.loc11_3.1: <witness> = complete_type_witness constants.%struct_type.base [symbolic = %complete_type.loc11_3.2 (constants.%complete_type.987)]
@@ -7615,7 +7615,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @T1.as.Destroy.impl(constants.%G1) {
 // CHECK:STDOUT:   %G1 => constants.%G1
 // CHECK:STDOUT:   %T1 => constants.%T1.18aea2.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fdd
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.069
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T1.as.Destroy.impl.Op(constants.%G1) {
@@ -7652,7 +7652,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @T3.as.Destroy.impl(constants.%G2) {
 // CHECK:STDOUT:   %G2 => constants.%G2
 // CHECK:STDOUT:   %T3 => constants.%T3
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7f3
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.aa6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T3.as.Destroy.impl.Op(constants.%G2) {
@@ -7665,7 +7665,7 @@ class T2(G2:! type) {
 // CHECK:STDOUT: specific @T2.as.Destroy.impl(constants.%G2) {
 // CHECK:STDOUT:   %G2 => constants.%G2
 // CHECK:STDOUT:   %T2 => constants.%T2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fb2
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.8b2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T2.as.Destroy.impl.Op(constants.%G2) {
diff --git a/toolchain/check/testdata/deduce/array.carbon b/toolchain/check/testdata/deduce/array.carbon
index 267559218228..c3422942897e 100644
--- a/toolchain/check/testdata/deduce/array.carbon
+++ b/toolchain/check/testdata/deduce/array.carbon
@@ -131,7 +131,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -157,18 +157,18 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
@@ -183,9 +183,9 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %array: %array_type.002 = tuple_value (%C.val, %C.val, %C.val) [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.85d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.1f9: %T.as.Destroy.impl.Op.type.85d = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.050: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7db: %T.as.Destroy.impl.Op.type.050 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
 // CHECK:STDOUT:   %complete_type.dd1: <witness> = complete_type_witness %array_type.002 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -200,8 +200,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -263,7 +263,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -289,7 +289,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc6_48.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc6_48.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -341,8 +341,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %.loc8: ref %C = splice_block %return {}
 // CHECK:STDOUT:   %.loc10: %array_type.002 = bind_value %a.ref
 // CHECK:STDOUT:   %F.call: init %C = call %F.specific_fn(%.loc10) to %.loc8
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.1f9
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.7db
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.301 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -373,7 +373,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -398,20 +398,20 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %require_complete.d82: <witness> = require_complete_type %array_type.6a2 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.41f: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.ad4: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.ad4(%N) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.150: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.1b6: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.1b6(%N) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
@@ -425,12 +425,12 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %array: %array_type.002 = tuple_value (%C.val, %C.val, %C.val) [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%int_3.1ba) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.85d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.1f9: %T.as.Destroy.impl.Op.type.85d = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.050: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7db: %T.as.Destroy.impl.Op.type.050 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
 // CHECK:STDOUT:   %complete_type.dd1: <witness> = complete_type_witness %array_type.002 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -447,8 +447,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.IntLiteral: %IntLiteral.type = import_ref Core//prelude/parts/int_literal, IntLiteral, loaded [concrete = constants.%IntLiteral]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -519,7 +519,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -536,17 +536,17 @@ fn G() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %array_type.loc6_42.1 [symbolic = %require_complete (constants.%require_complete.d82)]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc6_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.41f)]
-// CHECK:STDOUT:   %bound_method.loc6_62.3: <bound method> = bound_method %N.loc6_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc6_62.3 (constants.%bound_method.ad4)]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc6_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.150)]
+// CHECK:STDOUT:   %bound_method.loc6_62.3: <bound method> = bound_method %N.loc6_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc6_62.3 (constants.%bound_method.1b6)]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.2: init %i32 = call %bound_method.loc6_62.3(%N.loc6_6.1) [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @F.%array_type.loc6_42.1 (%array_type.6a2)) -> %i32 {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %N.ref.loc6_61: Core.IntLiteral = name_ref N, %N.loc6_6.2 [symbolic = %N.loc6_6.1 (constants.%N)]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc6_62.1: <bound method> = bound_method %N.ref.loc6_61, %impl.elem0 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.41f)]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc6_62.1: <bound method> = bound_method %N.ref.loc6_61, %impl.elem0 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.150)]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_62.2: <bound method> = bound_method %N.ref.loc6_61, %specific_fn [symbolic = %bound_method.loc6_62.3 (constants.%bound_method.ad4)]
+// CHECK:STDOUT:     %bound_method.loc6_62.2: <bound method> = bound_method %N.ref.loc6_61, %specific_fn [symbolic = %bound_method.loc6_62.3 (constants.%bound_method.1b6)]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.1: init %i32 = call %bound_method.loc6_62.2(%N.ref.loc6_61) [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc6_62.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.1 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc6_62.2: %i32 = converted %N.ref.loc6_61, %.loc6_62.1 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
@@ -593,8 +593,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %F.call: init %i32 = call %F.specific_fn(%.loc10_12)
 // CHECK:STDOUT:   %.loc10_14.1: %i32 = value_of_initializer %F.call
 // CHECK:STDOUT:   %.loc10_14.2: %i32 = converted %F.call, %.loc10_14.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.1f9
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.7db
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.301 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -614,8 +614,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.dd1
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound => constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30
-// CHECK:STDOUT:   %bound_method.loc6_62.3 => constants.%bound_method.047
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound => constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36
+// CHECK:STDOUT:   %bound_method.loc6_62.3 => constants.%bound_method.f79
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_62.2 => constants.%int_3.822
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -625,7 +625,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -658,9 +658,9 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %array: %array_type.002 = tuple_value (%C.val, %C.val, %C.val) [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%C, %int_3) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.85d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.1f9: %T.as.Destroy.impl.Op.type.85d = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.050: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7db: %T.as.Destroy.impl.Op.type.050 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
 // CHECK:STDOUT:   %complete_type.dd1: <witness> = complete_type_witness %array_type.002 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -732,7 +732,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -794,8 +794,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F.ref, @F(constants.%C, constants.%int_3) [concrete = constants.%F.specific_fn]
 // CHECK:STDOUT:   %.loc10: %array_type.002 = bind_value %a.ref
 // CHECK:STDOUT:   %F.call: init %empty_tuple.type = call %F.specific_fn(%.loc10)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.1f9
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.7db
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.301 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -825,7 +825,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -851,18 +851,18 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
@@ -879,9 +879,9 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %array_type.15a: type = array_type %int_2, %C [concrete]
 // CHECK:STDOUT:   %pattern_type.114: type = pattern_type %array_type.15a [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.85d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.1f9: %T.as.Destroy.impl.Op.type.85d = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.050: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7db: %T.as.Destroy.impl.Op.type.050 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
 // CHECK:STDOUT:   %complete_type.8eb: <witness> = complete_type_witness %array_type.15a [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -896,8 +896,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -959,7 +959,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -985,7 +985,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc6_48.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc6_48.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -1037,8 +1037,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %.loc8: ref %C = splice_block %return {}
 // CHECK:STDOUT:   %.loc21: %array_type.15a = converted %a.ref, <error> [concrete = <error>]
 // CHECK:STDOUT:   %F.call: init %C = call %F.specific_fn(<error>) to %.loc8
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.1f9
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.7db
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.301 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -1069,7 +1069,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1078,7 +1078,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -1100,20 +1100,20 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %require_complete.d82: <witness> = require_complete_type %array_type.6a2 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.41f: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.ad4: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.ad4(%N) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.150: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.1b6: <bound method> = bound_method %N, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.1b6(%N) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
@@ -1129,12 +1129,12 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %array_type.002: type = array_type %int_3.1ba, %C [concrete]
 // CHECK:STDOUT:   %pattern_type.a63: type = pattern_type %array_type.002 [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%int_3.1ba) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.419: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.fe4) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.11a: %T.as.Destroy.impl.Op.type.419 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.11a, @T.as.Destroy.impl.Op(%array_type.fe4) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ea6: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.fe4) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.cbf: %T.as.Destroy.impl.Op.type.ea6 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.cbf, @T.as.Destroy.impl.Op(%array_type.fe4) [concrete]
 // CHECK:STDOUT:   %complete_type.dd1: <witness> = complete_type_witness %array_type.002 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1151,8 +1151,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.IntLiteral: %IntLiteral.type = import_ref Core//prelude/parts/int_literal, IntLiteral, loaded [concrete = constants.%IntLiteral]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1241,7 +1241,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1253,7 +1253,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1272,17 +1272,17 @@ fn G() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %array_type.loc7_42.1 [symbolic = %require_complete (constants.%require_complete.d82)]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc7_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.41f)]
-// CHECK:STDOUT:   %bound_method.loc7_62.3: <bound method> = bound_method %N.loc7_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc7_62.3 (constants.%bound_method.ad4)]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc7_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.150)]
+// CHECK:STDOUT:   %bound_method.loc7_62.3: <bound method> = bound_method %N.loc7_6.1, constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc7_62.3 (constants.%bound_method.1b6)]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.2: init %i32 = call %bound_method.loc7_62.3(%N.loc7_6.1) [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @F.%array_type.loc7_42.1 (%array_type.6a2)) -> %i32 {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %N.ref.loc7_61: Core.IntLiteral = name_ref N, %N.loc7_6.2 [symbolic = %N.loc7_6.1 (constants.%N)]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc7_62.1: <bound method> = bound_method %N.ref.loc7_61, %impl.elem0 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.41f)]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc7_62.1: <bound method> = bound_method %N.ref.loc7_61, %impl.elem0 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.150)]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc7_62.2: <bound method> = bound_method %N.ref.loc7_61, %specific_fn [symbolic = %bound_method.loc7_62.3 (constants.%bound_method.ad4)]
+// CHECK:STDOUT:     %bound_method.loc7_62.2: <bound method> = bound_method %N.ref.loc7_61, %specific_fn [symbolic = %bound_method.loc7_62.3 (constants.%bound_method.1b6)]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.1: init %i32 = call %bound_method.loc7_62.2(%N.ref.loc7_61) [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc7_62.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.1 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc7_62.2: %i32 = converted %N.ref.loc7_61, %.loc7_62.1 [symbolic = %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.2 (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call)]
@@ -1329,8 +1329,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %F.call: init %i32 = call %F.specific_fn(<error>)
 // CHECK:STDOUT:   %.loc22_14.1: %i32 = value_of_initializer %F.call
 // CHECK:STDOUT:   %.loc22_14.2: %i32 = converted %F.call, %.loc22_14.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.11a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.11a, @T.as.Destroy.impl.Op(constants.%array_type.fe4) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.cbf
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.cbf, @T.as.Destroy.impl.Op(constants.%array_type.fe4) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.af6 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -1350,8 +1350,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.dd1
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound => constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30
-// CHECK:STDOUT:   %bound_method.loc7_62.3 => constants.%bound_method.047
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound => constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36
+// CHECK:STDOUT:   %bound_method.loc7_62.3 => constants.%bound_method.f79
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_62.2 => constants.%int_3.822
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1361,7 +1361,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1378,25 +1378,25 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.960 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.87c [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method(%N.51e) [symbolic]
-// CHECK:STDOUT:   %array_type.b2f: type = array_type %Int.as.ImplicitAs.impl.Convert.call, %C [symbolic]
-// CHECK:STDOUT:   %pattern_type.ac2: type = pattern_type %array_type.b2f [symbolic]
+// CHECK:STDOUT:   %array_type.379: type = array_type %Int.as.ImplicitAs.impl.Convert.call, %C [symbolic]
+// CHECK:STDOUT:   %pattern_type.180: type = pattern_type %array_type.379 [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.cde: <witness> = require_complete_type %array_type.b2f [symbolic]
+// CHECK:STDOUT:   %require_complete.80a: <witness> = require_complete_type %array_type.379 [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete]
@@ -1409,9 +1409,9 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %array: %array_type.002 = tuple_value (%C.val, %C.val, %C.val) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.85d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.1f9: %T.as.Destroy.impl.Op.type.85d = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.050: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type.002) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7db: %T.as.Destroy.impl.Op.type.050 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(%array_type.002) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1425,8 +1425,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1440,8 +1440,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
 // CHECK:STDOUT:     %N.patt: %pattern_type.7ce = symbolic_binding_pattern N, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @F.%pattern_type (%pattern_type.ac2) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @F.%pattern_type (%pattern_type.ac2) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %a.patt: @F.%pattern_type (%pattern_type.180) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @F.%pattern_type (%pattern_type.180) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
@@ -1453,20 +1453,20 @@ fn G() -> i32 {
 // CHECK:STDOUT:       %i32.loc6_10: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %N.loc6_6.2: %i32 = bind_symbolic_name N, 0 [symbolic = %N.loc6_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:     %a.param: @F.%array_type.loc6_28.1 (%array_type.b2f) = value_param call_param0
-// CHECK:STDOUT:     %.loc6_28: type = splice_block %array_type.loc6_28.2 [symbolic = %array_type.loc6_28.1 (constants.%array_type.b2f)] {
+// CHECK:STDOUT:     %a.param: @F.%array_type.loc6_28.1 (%array_type.379) = value_param call_param0
+// CHECK:STDOUT:     %.loc6_28: type = splice_block %array_type.loc6_28.2 [symbolic = %array_type.loc6_28.1 (constants.%array_type.379)] {
 // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:       %N.ref.loc6_27: %i32 = name_ref N, %N.loc6_6.2 [symbolic = %N.loc6_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:       %impl.elem0: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
+// CHECK:STDOUT:       %impl.elem0: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
 // CHECK:STDOUT:       %bound_method.loc6_27.2: <bound method> = bound_method %N.ref.loc6_27, %impl.elem0 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc6_27.3: <bound method> = bound_method %N.ref.loc6_27, %specific_fn [symbolic = %bound_method.loc6_27.1 (constants.%bound_method)]
 // CHECK:STDOUT:       %Int.as.ImplicitAs.impl.Convert.call.loc6_27.2: init Core.IntLiteral = call %bound_method.loc6_27.3(%N.ref.loc6_27) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:       %.loc6_27.1: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc6_27.2 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:       %.loc6_27.2: Core.IntLiteral = converted %N.ref.loc6_27, %.loc6_27.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:       %array_type.loc6_28.2: type = array_type %.loc6_27.2, %C.ref [symbolic = %array_type.loc6_28.1 (constants.%array_type.b2f)]
+// CHECK:STDOUT:       %array_type.loc6_28.2: type = array_type %.loc6_27.2, %C.ref [symbolic = %array_type.loc6_28.1 (constants.%array_type.379)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %a: @F.%array_type.loc6_28.1 (%array_type.b2f) = bind_name a, %a.param
+// CHECK:STDOUT:     %a: @F.%array_type.loc6_28.1 (%array_type.379) = bind_name a, %a.param
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
@@ -1501,7 +1501,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1513,16 +1513,16 @@ fn G() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%N.loc6_6.2: %i32) {
 // CHECK:STDOUT:   %N.loc6_6.1: %i32 = bind_symbolic_name N, 0 [symbolic = %N.loc6_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc6_6.1, constants.%Int.as.ImplicitAs.impl.Convert.960 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc6_6.1, constants.%Int.as.ImplicitAs.impl.Convert.87c [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
 // CHECK:STDOUT:   %bound_method.loc6_27.1: <bound method> = bound_method %N.loc6_6.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc6_27.1 (constants.%bound_method)]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1: init Core.IntLiteral = call %bound_method.loc6_27.1(%N.loc6_6.1) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:   %array_type.loc6_28.1: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1, constants.%C [symbolic = %array_type.loc6_28.1 (constants.%array_type.b2f)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %array_type.loc6_28.1 [symbolic = %pattern_type (constants.%pattern_type.ac2)]
+// CHECK:STDOUT:   %array_type.loc6_28.1: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1, constants.%C [symbolic = %array_type.loc6_28.1 (constants.%array_type.379)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %array_type.loc6_28.1 [symbolic = %pattern_type (constants.%pattern_type.180)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %array_type.loc6_28.1 [symbolic = %require_complete (constants.%require_complete.cde)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %array_type.loc6_28.1 [symbolic = %require_complete (constants.%require_complete.80a)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%a.param: @F.%array_type.loc6_28.1 (%array_type.b2f)) -> %i32 {
+// CHECK:STDOUT:   fn(%a.param: @F.%array_type.loc6_28.1 (%array_type.379)) -> %i32 {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %N.ref.loc6_47: %i32 = name_ref N, %N.loc6_6.2 [symbolic = %N.loc6_6.1 (constants.%N.51e)]
 // CHECK:STDOUT:     return %N.ref.loc6_47
@@ -1563,8 +1563,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %a: ref %array_type.002 = bind_name a, %a.var
 // CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
 // CHECK:STDOUT:   %a.ref: ref %array_type.002 = name_ref a, %a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.1f9
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.1f9, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.7db
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7db, @T.as.Destroy.impl.Op(constants.%array_type.002) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.301 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -1576,7 +1576,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound
 // CHECK:STDOUT:   %bound_method.loc6_27.1 => constants.%bound_method
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc6_27.1 => constants.%Int.as.ImplicitAs.impl.Convert.call
-// CHECK:STDOUT:   %array_type.loc6_28.1 => constants.%array_type.b2f
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ac2
+// CHECK:STDOUT:   %array_type.loc6_28.1 => constants.%array_type.379
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.180
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/deduce/binding_pattern.carbon b/toolchain/check/testdata/deduce/binding_pattern.carbon
index f53b9a0e9cc5..d11bf15ab929 100644
--- a/toolchain/check/testdata/deduce/binding_pattern.carbon
+++ b/toolchain/check/testdata/deduce/binding_pattern.carbon
@@ -97,10 +97,10 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.275: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42e: %ImplicitAs.Convert.type.275 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.d88: type = facet_type <@ImplicitAs, @ImplicitAs(%V)> [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.f3c: type = facet_type <@ImplicitAs, @ImplicitAs(%V)> [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.5fe: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%V) [symbolic]
 // CHECK:STDOUT:   %assoc0.a0b: %ImplicitAs.assoc_type.5fe = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
-// CHECK:STDOUT:   %require_complete.6c8: <witness> = require_complete_type %ImplicitAs.type.d88 [symbolic]
+// CHECK:STDOUT:   %require_complete.ed5: <witness> = require_complete_type %ImplicitAs.type.f3c [symbolic]
 // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -236,8 +236,8 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:   %C.Create: @F.%C.Create.type (%C.Create.type.beb) = struct_value () [symbolic = %C.Create (constants.%C.Create.dca)]
 // CHECK:STDOUT:   %C.Create.specific_fn.loc19_7.2: <specific function> = specific_function %C.Create, @C.Create(%V.loc8_16.1) [symbolic = %C.Create.specific_fn.loc19_7.2 (constants.%C.Create.specific_fn)]
 // CHECK:STDOUT:   %require_complete.loc19_16.1: <witness> = require_complete_type %V.loc8_16.1 [symbolic = %require_complete.loc19_16.1 (constants.%require_complete.b54)]
-// CHECK:STDOUT:   %ImplicitAs.type.loc19_16.2: type = facet_type <@ImplicitAs, @ImplicitAs(%V.loc8_16.1)> [symbolic = %ImplicitAs.type.loc19_16.2 (constants.%ImplicitAs.type.d88)]
-// CHECK:STDOUT:   %require_complete.loc19_16.2: <witness> = require_complete_type %ImplicitAs.type.loc19_16.2 [symbolic = %require_complete.loc19_16.2 (constants.%require_complete.6c8)]
+// CHECK:STDOUT:   %ImplicitAs.type.loc19_16.2: type = facet_type <@ImplicitAs, @ImplicitAs(%V.loc8_16.1)> [symbolic = %ImplicitAs.type.loc19_16.2 (constants.%ImplicitAs.type.f3c)]
+// CHECK:STDOUT:   %require_complete.loc19_16.2: <witness> = require_complete_type %ImplicitAs.type.loc19_16.2 [symbolic = %require_complete.loc19_16.2 (constants.%require_complete.ed5)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%V.loc8_16.1) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.5fe)]
 // CHECK:STDOUT:   %assoc0: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.5fe) = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic = %assoc0 (constants.%assoc0.a0b)]
 // CHECK:STDOUT:
@@ -250,7 +250,7 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:     %Create.ref: @F.%C.Create.type (%C.Create.type.beb) = name_ref Create, %.loc19_7 [symbolic = %C.Create (constants.%C.Create.dca)]
 // CHECK:STDOUT:     %.loc19_16.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %C.Create.specific_fn.loc19_7.1: <specific function> = specific_function %Create.ref, @C.Create(constants.%V) [symbolic = %C.Create.specific_fn.loc19_7.2 (constants.%C.Create.specific_fn)]
-// CHECK:STDOUT:     %ImplicitAs.type.loc19_16.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%V)> [symbolic = %ImplicitAs.type.loc19_16.2 (constants.%ImplicitAs.type.d88)]
+// CHECK:STDOUT:     %ImplicitAs.type.loc19_16.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%V)> [symbolic = %ImplicitAs.type.loc19_16.2 (constants.%ImplicitAs.type.f3c)]
 // CHECK:STDOUT:     %.loc19_16.2: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.5fe) = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%V) [symbolic = %assoc0 (constants.%assoc0.a0b)]
 // CHECK:STDOUT:     %Convert.ref: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.5fe) = name_ref Convert, %.loc19_16.2 [symbolic = %assoc0 (constants.%assoc0.a0b)]
 // CHECK:STDOUT:     %.loc19_16.3: @F.%V.loc8_16.1 (%V) = converted %.loc19_16.1, <error> [concrete = <error>]
@@ -336,24 +336,24 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.275: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42e: %ImplicitAs.Convert.type.275 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.aba: type = facet_type <@ImplicitAs, @ImplicitAs(%.Self)> [symbolic_self]
+// CHECK:STDOUT:   %ImplicitAs.type.8ff: type = facet_type <@ImplicitAs, @ImplicitAs(%.Self)> [symbolic_self]
 // CHECK:STDOUT:   %type_where: type = facet_type <type where TODO> [concrete]
 // CHECK:STDOUT:   %V: %type_where = bind_symbolic_name V, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.344: type = pattern_type %type_where [concrete]
+// CHECK:STDOUT:   %pattern_type.354: type = pattern_type %type_where [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %C.cd6: type = class_type @C, @C(%V.as_type) [symbolic]
-// CHECK:STDOUT:   %C.Create.type.ff1: type = fn_type @C.Create, @C(%V.as_type) [symbolic]
-// CHECK:STDOUT:   %C.Create.96b: %C.Create.type.ff1 = struct_value () [symbolic]
-// CHECK:STDOUT:   %require_complete.558: <witness> = require_complete_type %C.cd6 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6e0: type = pattern_type %V.as_type [symbolic]
-// CHECK:STDOUT:   %C.Create.specific_fn: <specific function> = specific_function %C.Create.96b, @C.Create(%V.as_type) [symbolic]
-// CHECK:STDOUT:   %require_complete.0b5: <witness> = require_complete_type %V.as_type [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.113: type = facet_type <@ImplicitAs, @ImplicitAs(%V.as_type)> [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type.83a: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%V.as_type) [symbolic]
-// CHECK:STDOUT:   %assoc0.5dc: %ImplicitAs.assoc_type.83a = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
-// CHECK:STDOUT:   %require_complete.9fe: <witness> = require_complete_type %ImplicitAs.type.113 [symbolic]
+// CHECK:STDOUT:   %C.078: type = class_type @C, @C(%V.as_type) [symbolic]
+// CHECK:STDOUT:   %C.Create.type.a46: type = fn_type @C.Create, @C(%V.as_type) [symbolic]
+// CHECK:STDOUT:   %C.Create.b78: %C.Create.type.a46 = struct_value () [symbolic]
+// CHECK:STDOUT:   %require_complete.578: <witness> = require_complete_type %C.078 [symbolic]
+// CHECK:STDOUT:   %pattern_type.25d: type = pattern_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %C.Create.specific_fn: <specific function> = specific_function %C.Create.b78, @C.Create(%V.as_type) [symbolic]
+// CHECK:STDOUT:   %require_complete.e4b: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.49e: type = facet_type <@ImplicitAs, @ImplicitAs(%V.as_type)> [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type.9ee: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%V.as_type) [symbolic]
+// CHECK:STDOUT:   %assoc0.acd: %ImplicitAs.assoc_type.9ee = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
+// CHECK:STDOUT:   %require_complete.949: <witness> = require_complete_type %ImplicitAs.type.49e [symbolic]
 // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -386,7 +386,7 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
 // CHECK:STDOUT:     %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 0 [concrete]
-// CHECK:STDOUT:     %V.patt: %pattern_type.344 = symbolic_binding_pattern V, 1 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.354 = symbolic_binding_pattern V, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %U.loc9_6.2: type = bind_symbolic_name U, 0 [symbolic = %U.loc9_6.1 (constants.%U)]
@@ -397,7 +397,7 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:       %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:       %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:       %.Self.ref: type = name_ref .Self, %.Self.3 [symbolic_self = constants.%.Self]
-// CHECK:STDOUT:       %ImplicitAs.type.loc9: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%.Self)> [symbolic_self = constants.%ImplicitAs.type.aba]
+// CHECK:STDOUT:       %ImplicitAs.type.loc9: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%.Self)> [symbolic_self = constants.%ImplicitAs.type.8ff]
 // CHECK:STDOUT:       %.loc9_32.2: type = converted %.loc9_32.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:       %.loc9_25.2: type = where_expr %.Self.3 [concrete = constants.%type_where] {
 // CHECK:STDOUT:         requirement_base_facet_type type
@@ -497,16 +497,16 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %V.as_type.loc20_6.2: type = facet_access_type %V.loc9_16.1 [symbolic = %V.as_type.loc20_6.2 (constants.%V.as_type)]
-// CHECK:STDOUT:   %C.loc20_6.2: type = class_type @C, @C(%V.as_type.loc20_6.2) [symbolic = %C.loc20_6.2 (constants.%C.cd6)]
-// CHECK:STDOUT:   %require_complete.loc20_7: <witness> = require_complete_type %C.loc20_6.2 [symbolic = %require_complete.loc20_7 (constants.%require_complete.558)]
-// CHECK:STDOUT:   %C.Create.type: type = fn_type @C.Create, @C(%V.as_type.loc20_6.2) [symbolic = %C.Create.type (constants.%C.Create.type.ff1)]
-// CHECK:STDOUT:   %C.Create: @F.%C.Create.type (%C.Create.type.ff1) = struct_value () [symbolic = %C.Create (constants.%C.Create.96b)]
+// CHECK:STDOUT:   %C.loc20_6.2: type = class_type @C, @C(%V.as_type.loc20_6.2) [symbolic = %C.loc20_6.2 (constants.%C.078)]
+// CHECK:STDOUT:   %require_complete.loc20_7: <witness> = require_complete_type %C.loc20_6.2 [symbolic = %require_complete.loc20_7 (constants.%require_complete.578)]
+// CHECK:STDOUT:   %C.Create.type: type = fn_type @C.Create, @C(%V.as_type.loc20_6.2) [symbolic = %C.Create.type (constants.%C.Create.type.a46)]
+// CHECK:STDOUT:   %C.Create: @F.%C.Create.type (%C.Create.type.a46) = struct_value () [symbolic = %C.Create (constants.%C.Create.b78)]
 // CHECK:STDOUT:   %C.Create.specific_fn.loc20_7.2: <specific function> = specific_function %C.Create, @C.Create(%V.as_type.loc20_6.2) [symbolic = %C.Create.specific_fn.loc20_7.2 (constants.%C.Create.specific_fn)]
-// CHECK:STDOUT:   %require_complete.loc20_16.1: <witness> = require_complete_type %V.as_type.loc20_6.2 [symbolic = %require_complete.loc20_16.1 (constants.%require_complete.0b5)]
-// CHECK:STDOUT:   %ImplicitAs.type.loc20_16.2: type = facet_type <@ImplicitAs, @ImplicitAs(%V.as_type.loc20_6.2)> [symbolic = %ImplicitAs.type.loc20_16.2 (constants.%ImplicitAs.type.113)]
-// CHECK:STDOUT:   %require_complete.loc20_16.2: <witness> = require_complete_type %ImplicitAs.type.loc20_16.2 [symbolic = %require_complete.loc20_16.2 (constants.%require_complete.9fe)]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%V.as_type.loc20_6.2) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.83a)]
-// CHECK:STDOUT:   %assoc0: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.83a) = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic = %assoc0 (constants.%assoc0.5dc)]
+// CHECK:STDOUT:   %require_complete.loc20_16.1: <witness> = require_complete_type %V.as_type.loc20_6.2 [symbolic = %require_complete.loc20_16.1 (constants.%require_complete.e4b)]
+// CHECK:STDOUT:   %ImplicitAs.type.loc20_16.2: type = facet_type <@ImplicitAs, @ImplicitAs(%V.as_type.loc20_6.2)> [symbolic = %ImplicitAs.type.loc20_16.2 (constants.%ImplicitAs.type.49e)]
+// CHECK:STDOUT:   %require_complete.loc20_16.2: <witness> = require_complete_type %ImplicitAs.type.loc20_16.2 [symbolic = %require_complete.loc20_16.2 (constants.%require_complete.949)]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%V.as_type.loc20_6.2) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.9ee)]
+// CHECK:STDOUT:   %assoc0: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.9ee) = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic = %assoc0 (constants.%assoc0.acd)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
@@ -514,14 +514,14 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:     %V.ref: %type_where = name_ref V, %V.loc9_16.2 [symbolic = %V.loc9_16.1 (constants.%V)]
 // CHECK:STDOUT:     %V.as_type.loc20_6.1: type = facet_access_type %V.ref [symbolic = %V.as_type.loc20_6.2 (constants.%V.as_type)]
 // CHECK:STDOUT:     %.loc20_6: type = converted %V.ref, %V.as_type.loc20_6.1 [symbolic = %V.as_type.loc20_6.2 (constants.%V.as_type)]
-// CHECK:STDOUT:     %C.loc20_6.1: type = class_type @C, @C(constants.%V.as_type) [symbolic = %C.loc20_6.2 (constants.%C.cd6)]
-// CHECK:STDOUT:     %.loc20_7: @F.%C.Create.type (%C.Create.type.ff1) = specific_constant @C.%C.Create.decl, @C(constants.%V.as_type) [symbolic = %C.Create (constants.%C.Create.96b)]
-// CHECK:STDOUT:     %Create.ref: @F.%C.Create.type (%C.Create.type.ff1) = name_ref Create, %.loc20_7 [symbolic = %C.Create (constants.%C.Create.96b)]
+// CHECK:STDOUT:     %C.loc20_6.1: type = class_type @C, @C(constants.%V.as_type) [symbolic = %C.loc20_6.2 (constants.%C.078)]
+// CHECK:STDOUT:     %.loc20_7: @F.%C.Create.type (%C.Create.type.a46) = specific_constant @C.%C.Create.decl, @C(constants.%V.as_type) [symbolic = %C.Create (constants.%C.Create.b78)]
+// CHECK:STDOUT:     %Create.ref: @F.%C.Create.type (%C.Create.type.a46) = name_ref Create, %.loc20_7 [symbolic = %C.Create (constants.%C.Create.b78)]
 // CHECK:STDOUT:     %.loc20_16.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %C.Create.specific_fn.loc20_7.1: <specific function> = specific_function %Create.ref, @C.Create(constants.%V.as_type) [symbolic = %C.Create.specific_fn.loc20_7.2 (constants.%C.Create.specific_fn)]
-// CHECK:STDOUT:     %ImplicitAs.type.loc20_16.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%V.as_type)> [symbolic = %ImplicitAs.type.loc20_16.2 (constants.%ImplicitAs.type.113)]
-// CHECK:STDOUT:     %.loc20_16.2: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.83a) = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%V.as_type) [symbolic = %assoc0 (constants.%assoc0.5dc)]
-// CHECK:STDOUT:     %Convert.ref: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.83a) = name_ref Convert, %.loc20_16.2 [symbolic = %assoc0 (constants.%assoc0.5dc)]
+// CHECK:STDOUT:     %ImplicitAs.type.loc20_16.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%V.as_type)> [symbolic = %ImplicitAs.type.loc20_16.2 (constants.%ImplicitAs.type.49e)]
+// CHECK:STDOUT:     %.loc20_16.2: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.9ee) = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%V.as_type) [symbolic = %assoc0 (constants.%assoc0.acd)]
+// CHECK:STDOUT:     %Convert.ref: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.9ee) = name_ref Convert, %.loc20_16.2 [symbolic = %assoc0 (constants.%assoc0.acd)]
 // CHECK:STDOUT:     %.loc20_16.3: @F.%V.as_type.loc20_6.2 (%V.as_type) = converted %.loc20_16.1, <error> [concrete = <error>]
 // CHECK:STDOUT:     %C.Create.call: init %empty_tuple.type = call %C.Create.specific_fn.loc20_7.1(<error>)
 // CHECK:STDOUT:     return
@@ -563,15 +563,15 @@ fn F(U:! type, V:! type where {} impls Core.ImplicitAs(.Self)) {
 // CHECK:STDOUT:   %T.loc4_9.1 => constants.%V.as_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.Create.type => constants.%C.Create.type.ff1
-// CHECK:STDOUT:   %C.Create => constants.%C.Create.96b
+// CHECK:STDOUT:   %C.Create.type => constants.%C.Create.type.a46
+// CHECK:STDOUT:   %C.Create => constants.%C.Create.b78
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.Create(constants.%V.as_type) {
 // CHECK:STDOUT:   %T => constants.%V.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6e0
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.25d
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.0b5
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.e4b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/deduce/generic_type.carbon b/toolchain/check/testdata/deduce/generic_type.carbon
index 3e80c5ebdf0c..5cea6635baa0 100644
--- a/toolchain/check/testdata/deduce/generic_type.carbon
+++ b/toolchain/check/testdata/deduce/generic_type.carbon
@@ -80,7 +80,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C.f2e: type = class_type @C, @C(%T) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -88,7 +88,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -175,7 +175,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc4_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -226,7 +226,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -239,7 +239,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -302,7 +302,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -353,7 +353,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %I.ff1: type = class_type @I, @I(%T) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.f61: <witness> = impl_witness @I.%Destroy.impl_witness_table, @I.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.b65: <witness> = impl_witness @I.%Destroy.impl_witness_table, @I.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.22f: type = ptr_type %I.ff1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.b10: type = pattern_type %ptr.22f [symbolic]
 // CHECK:STDOUT:   %I.as.Destroy.impl.Op.type: type = fn_type @I.as.Destroy.impl.Op, @I.as.Destroy.impl(%T) [symbolic]
@@ -361,7 +361,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -446,7 +446,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: generic impl @I.as.Destroy.impl(@I.%T.loc4_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %I: type = class_type @I, @I(%T) [symbolic = %I (constants.%I.ff1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @I.%Destroy.impl_witness_table, @I.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.f61)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @I.%Destroy.impl_witness_table, @I.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.b65)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %I.as.Destroy.impl.Op.type: type = fn_type @I.as.Destroy.impl.Op, @I.as.Destroy.impl(%T) [symbolic = %I.as.Destroy.impl.Op.type (constants.%I.as.Destroy.impl.Op.type)]
@@ -497,7 +497,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%I.ff1 [symbolic = @I.as.Destroy.impl.%I (constants.%I.ff1)]
 // CHECK:STDOUT:     impl_decl @I.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@I.as.Destroy.impl.%I.as.Destroy.impl.Op.decl), @I.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @I.as.Destroy.impl(constants.%T) [symbolic = @I.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.f61)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @I.as.Destroy.impl(constants.%T) [symbolic = @I.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.b65)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -510,7 +510,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -570,7 +570,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: specific @I.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %I => constants.%I.ff1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.f61
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.b65
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.as.Destroy.impl.Op(constants.%T) {
@@ -621,26 +621,26 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Inner.c71: type = class_type @Inner, @Inner(%T, %U) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.de8: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.647: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %ptr.276: type = ptr_type %Inner.c71 [symbolic]
 // CHECK:STDOUT:   %pattern_type.01f: type = pattern_type %ptr.276 [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a35: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7ee: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6ff: type = ptr_type %Outer.9d6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.07e: type = pattern_type %ptr.6ff [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op: %Outer.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -755,7 +755,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 1 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %Inner: type = class_type @Inner, @Inner(%T, %U) [symbolic = %Inner (constants.%Inner.c71)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.de8)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.647)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type)]
@@ -784,7 +784,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%T) [symbolic = %Outer (constants.%Outer.9d6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic = %Outer.as.Destroy.impl.Op.type (constants.%Outer.as.Destroy.impl.Op.type)]
@@ -859,7 +859,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -878,7 +878,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Inner.c71 [symbolic = @Inner.as.Destroy.impl.%Inner (constants.%Inner.c71)]
 // CHECK:STDOUT:     impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.de8)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.647)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -891,7 +891,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -903,7 +903,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -994,7 +994,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %Inner => constants.%Inner.c71
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.de8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.647
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%T, constants.%U) {
@@ -1008,7 +1008,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Outer => constants.%Outer.9d6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a35
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ee
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%T) {
@@ -1084,11 +1084,11 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %WithNontype.8a6: type = class_type @WithNontype, @WithNontype(%N.51e) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.743: <witness> = impl_witness @WithNontype.%Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.e8f: <witness> = impl_witness @WithNontype.%Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(%N.51e) [symbolic]
 // CHECK:STDOUT:   %ptr.95c: type = ptr_type %WithNontype.8a6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.c81: type = pattern_type %ptr.95c [symbolic]
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type.59d: type = fn_type @WithNontype.as.Destroy.impl.Op, @WithNontype.as.Destroy.impl(%N.51e) [symbolic]
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.825: %WithNontype.as.Destroy.impl.Op.type.59d = struct_value () [symbolic]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type.f0f: type = fn_type @WithNontype.as.Destroy.impl.Op, @WithNontype.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.7d2: %WithNontype.as.Destroy.impl.Op.type.f0f = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %pattern_type.48f: type = pattern_type %WithNontype.8a6 [symbolic]
@@ -1100,30 +1100,30 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %WithNontype.b82: type = class_type @WithNontype, @WithNontype(%int_0.6a9) [concrete]
 // CHECK:STDOUT:   %WithNontype.val: %WithNontype.b82 = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.b66: type = pattern_type %WithNontype.b82 [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e99: <witness> = impl_witness @WithNontype.%Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type.fa3: type = fn_type @WithNontype.as.Destroy.impl.Op, @WithNontype.as.Destroy.impl(%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.002: %WithNontype.as.Destroy.impl.Op.type.fa3 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.597: <witness> = impl_witness @WithNontype.%Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(%int_0.6a9) [concrete]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type.9ed: type = fn_type @WithNontype.as.Destroy.impl.Op, @WithNontype.as.Destroy.impl(%int_0.6a9) [concrete]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.de0: %WithNontype.as.Destroy.impl.Op.type.9ed = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.791: type = ptr_type %WithNontype.b82 [concrete]
 // CHECK:STDOUT:   %pattern_type.7a7: type = pattern_type %ptr.791 [concrete]
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %WithNontype.as.Destroy.impl.Op.002, @WithNontype.as.Destroy.impl.Op(%int_0.6a9) [concrete]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %WithNontype.as.Destroy.impl.Op.de0, @WithNontype.as.Destroy.impl.Op(%int_0.6a9) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1137,8 +1137,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1198,14 +1198,14 @@ fn G() -> i32 {
 // CHECK:STDOUT: generic impl @WithNontype.as.Destroy.impl(@WithNontype.%N.loc4_19.2: %i32) {
 // CHECK:STDOUT:   %N: %i32 = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.51e)]
 // CHECK:STDOUT:   %WithNontype: type = class_type @WithNontype, @WithNontype(%N) [symbolic = %WithNontype (constants.%WithNontype.8a6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @WithNontype.%Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.743)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @WithNontype.%Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e8f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type: type = fn_type @WithNontype.as.Destroy.impl.Op, @WithNontype.as.Destroy.impl(%N) [symbolic = %WithNontype.as.Destroy.impl.Op.type (constants.%WithNontype.as.Destroy.impl.Op.type.59d)]
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op: @WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op.type (%WithNontype.as.Destroy.impl.Op.type.59d) = struct_value () [symbolic = %WithNontype.as.Destroy.impl.Op (constants.%WithNontype.as.Destroy.impl.Op.825)]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type: type = fn_type @WithNontype.as.Destroy.impl.Op, @WithNontype.as.Destroy.impl(%N) [symbolic = %WithNontype.as.Destroy.impl.Op.type (constants.%WithNontype.as.Destroy.impl.Op.type.f0f)]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op: @WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op.type (%WithNontype.as.Destroy.impl.Op.type.f0f) = struct_value () [symbolic = %WithNontype.as.Destroy.impl.Op (constants.%WithNontype.as.Destroy.impl.Op.7d2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @WithNontype.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %WithNontype.as.Destroy.impl.Op.decl: @WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op.type (%WithNontype.as.Destroy.impl.Op.type.59d) = fn_decl @WithNontype.as.Destroy.impl.Op [symbolic = @WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op (constants.%WithNontype.as.Destroy.impl.Op.825)] {
+// CHECK:STDOUT:     %WithNontype.as.Destroy.impl.Op.decl: @WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op.type (%WithNontype.as.Destroy.impl.Op.type.f0f) = fn_decl @WithNontype.as.Destroy.impl.Op [symbolic = @WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op (constants.%WithNontype.as.Destroy.impl.Op.7d2)] {
 // CHECK:STDOUT:       %self.patt: @WithNontype.as.Destroy.impl.Op.%pattern_type (%pattern_type.c81) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @WithNontype.as.Destroy.impl.Op.%pattern_type (%pattern_type.c81) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc4_28.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -1233,7 +1233,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%WithNontype.8a6 [symbolic = @WithNontype.as.Destroy.impl.%WithNontype (constants.%WithNontype.8a6)]
 // CHECK:STDOUT:     impl_decl @WithNontype.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@WithNontype.as.Destroy.impl.%WithNontype.as.Destroy.impl.Op.decl), @WithNontype.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(constants.%N.51e) [symbolic = @WithNontype.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.743)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @WithNontype.as.Destroy.impl(constants.%N.51e) [symbolic = @WithNontype.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.e8f)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1274,7 +1274,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %.loc9_13.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %WithNontype.ref: %WithNontype.type = name_ref WithNontype, file.%WithNontype.decl [concrete = constants.%WithNontype.generic]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc9_31.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_31.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -1291,8 +1291,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %F.call: init %i32 = call %F.specific_fn(%.loc9_15.2)
 // CHECK:STDOUT:   %.loc9_33.1: %i32 = value_of_initializer %F.call
 // CHECK:STDOUT:   %.loc9_33.2: %i32 = converted %F.call, %.loc9_33.1
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_13.4, constants.%WithNontype.as.Destroy.impl.Op.002
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%WithNontype.as.Destroy.impl.Op.002, @WithNontype.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%WithNontype.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_13.4, constants.%WithNontype.as.Destroy.impl.Op.de0
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%WithNontype.as.Destroy.impl.Op.de0, @WithNontype.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%WithNontype.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_13: <bound method> = bound_method %.loc9_13.4, %WithNontype.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.791 = addr_of %.loc9_13.4
 // CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc9_13(%addr)
@@ -1308,7 +1308,7 @@ fn G() -> i32 {
 // CHECK:STDOUT: specific @WithNontype.as.Destroy.impl(constants.%N.51e) {
 // CHECK:STDOUT:   %N => constants.%N.51e
 // CHECK:STDOUT:   %WithNontype => constants.%WithNontype.8a6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.743
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e8f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @WithNontype.as.Destroy.impl.Op(constants.%N.51e) {
@@ -1342,11 +1342,11 @@ fn G() -> i32 {
 // CHECK:STDOUT: specific @WithNontype.as.Destroy.impl(constants.%int_0.6a9) {
 // CHECK:STDOUT:   %N => constants.%int_0.6a9
 // CHECK:STDOUT:   %WithNontype => constants.%WithNontype.b82
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e99
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.597
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type => constants.%WithNontype.as.Destroy.impl.Op.type.fa3
-// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op => constants.%WithNontype.as.Destroy.impl.Op.002
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op.type => constants.%WithNontype.as.Destroy.impl.Op.type.9ed
+// CHECK:STDOUT:   %WithNontype.as.Destroy.impl.Op => constants.%WithNontype.as.Destroy.impl.Op.de0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @WithNontype.as.Destroy.impl.Op(constants.%int_0.6a9) {
diff --git a/toolchain/check/testdata/deduce/tuple.carbon b/toolchain/check/testdata/deduce/tuple.carbon
index 23309c77ab84..1c6a21bbc6b3 100644
--- a/toolchain/check/testdata/deduce/tuple.carbon
+++ b/toolchain/check/testdata/deduce/tuple.carbon
@@ -63,7 +63,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -71,7 +71,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -198,7 +198,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -210,7 +210,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -299,7 +299,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %HasPair.920: type = class_type @HasPair, @HasPair(%Pair) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.347: <witness> = impl_witness @HasPair.%Destroy.impl_witness_table, @HasPair.as.Destroy.impl(%Pair) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.56a: <witness> = impl_witness @HasPair.%Destroy.impl_witness_table, @HasPair.as.Destroy.impl(%Pair) [symbolic]
 // CHECK:STDOUT:   %ptr.c3d: type = ptr_type %HasPair.920 [symbolic]
 // CHECK:STDOUT:   %pattern_type.ba5: type = pattern_type %ptr.c3d [symbolic]
 // CHECK:STDOUT:   %HasPair.as.Destroy.impl.Op.type: type = fn_type @HasPair.as.Destroy.impl.Op, @HasPair.as.Destroy.impl(%Pair) [symbolic]
@@ -320,22 +320,22 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.21c: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %HasPair.369: type = class_type @HasPair, @HasPair(%tuple.21c) [concrete]
@@ -356,8 +356,8 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -432,17 +432,17 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:       %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:       %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:       %.loc8_22.1: %tuple.type.f94 = tuple_literal (%int_1, %int_2)
-// CHECK:STDOUT:       %impl.elem0.loc8_22.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:       %bound_method.loc8_22.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_22.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:       %impl.elem0.loc8_22.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:       %bound_method.loc8_22.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_22.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:       %specific_fn.loc8_22.1: <specific function> = specific_function %impl.elem0.loc8_22.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:       %bound_method.loc8_22.2: <bound method> = bound_method %int_1, %specific_fn.loc8_22.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:       %bound_method.loc8_22.2: <bound method> = bound_method %int_1, %specific_fn.loc8_22.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:       %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_22.1: init %i32 = call %bound_method.loc8_22.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:       %.loc8_22.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_22.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:       %.loc8_22.3: %i32 = converted %int_1, %.loc8_22.2 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:       %impl.elem0.loc8_22.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:       %bound_method.loc8_22.3: <bound method> = bound_method %int_2, %impl.elem0.loc8_22.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:       %impl.elem0.loc8_22.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:       %bound_method.loc8_22.3: <bound method> = bound_method %int_2, %impl.elem0.loc8_22.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:       %specific_fn.loc8_22.2: <specific function> = specific_function %impl.elem0.loc8_22.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:       %bound_method.loc8_22.4: <bound method> = bound_method %int_2, %specific_fn.loc8_22.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:       %bound_method.loc8_22.4: <bound method> = bound_method %int_2, %specific_fn.loc8_22.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:       %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_22.2: init %i32 = call %bound_method.loc8_22.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:       %.loc8_22.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_22.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:       %.loc8_22.5: %i32 = converted %int_2, %.loc8_22.4 [concrete = constants.%int_2.ef8]
@@ -459,7 +459,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT: generic impl @HasPair.as.Destroy.impl(@HasPair.%Pair.loc4_15.2: %tuple.type.d07) {
 // CHECK:STDOUT:   %Pair: %tuple.type.d07 = bind_symbolic_name Pair, 0 [symbolic = %Pair (constants.%Pair)]
 // CHECK:STDOUT:   %HasPair: type = class_type @HasPair, @HasPair(%Pair) [symbolic = %HasPair (constants.%HasPair.920)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HasPair.%Destroy.impl_witness_table, @HasPair.as.Destroy.impl(%Pair) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.347)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HasPair.%Destroy.impl_witness_table, @HasPair.as.Destroy.impl(%Pair) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.56a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %HasPair.as.Destroy.impl.Op.type: type = fn_type @HasPair.as.Destroy.impl.Op, @HasPair.as.Destroy.impl(%Pair) [symbolic = %HasPair.as.Destroy.impl.Op.type (constants.%HasPair.as.Destroy.impl.Op.type)]
@@ -494,7 +494,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%HasPair.920 [symbolic = @HasPair.as.Destroy.impl.%HasPair (constants.%HasPair.920)]
 // CHECK:STDOUT:     impl_decl @HasPair.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@HasPair.as.Destroy.impl.%HasPair.as.Destroy.impl.Op.decl), @HasPair.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HasPair.as.Destroy.impl(constants.%Pair) [symbolic = @HasPair.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.347)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HasPair.as.Destroy.impl(constants.%Pair) [symbolic = @HasPair.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.56a)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -549,7 +549,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT: specific @HasPair.as.Destroy.impl(constants.%Pair) {
 // CHECK:STDOUT:   %Pair => constants.%Pair
 // CHECK:STDOUT:   %HasPair => constants.%HasPair.920
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.347
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.56a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasPair.as.Destroy.impl.Op(constants.%Pair) {
@@ -596,7 +596,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -604,7 +604,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -722,7 +722,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -734,7 +734,7 @@ fn G(pair: (C, D)) -> D {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/deduce/value_with_type_through_access.carbon b/toolchain/check/testdata/deduce/value_with_type_through_access.carbon
index 805422f59663..501cec5a85c7 100644
--- a/toolchain/check/testdata/deduce/value_with_type_through_access.carbon
+++ b/toolchain/check/testdata/deduce/value_with_type_through_access.carbon
@@ -115,11 +115,11 @@ fn G() {
 // CHECK:STDOUT:   %HoldsType.cc9: type = class_type @HoldsType, @HoldsType(%T.6eb) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d43: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.a65: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
 // CHECK:STDOUT:   %ptr.47e: type = ptr_type %HoldsType.cc9 [symbolic]
 // CHECK:STDOUT:   %pattern_type.c39: type = pattern_type %ptr.47e [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.939: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.2fb: %HoldsType.as.Destroy.impl.Op.type.939 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.edc: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.c18: %HoldsType.as.Destroy.impl.Op.type.edc = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %pattern_type.ec6: type = pattern_type %HoldsType.cc9 [symbolic]
@@ -131,7 +131,7 @@ fn G() {
 // CHECK:STDOUT:   %require_complete.514: <witness> = require_complete_type %HoldsType.cc9 [symbolic]
 // CHECK:STDOUT:   %require_complete.fec: <witness> = require_complete_type %tuple.elem0 [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -145,12 +145,12 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%tuple) [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.7a6: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%tuple) [concrete]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.c3f: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%tuple) [concrete]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.26d: %HoldsType.as.Destroy.impl.Op.type.c3f = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.fb8: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%tuple) [concrete]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.2bc: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%tuple) [concrete]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.6cf: %HoldsType.as.Destroy.impl.Op.type.2bc = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.79a: type = ptr_type %HoldsType.c09 [concrete]
 // CHECK:STDOUT:   %pattern_type.bb8: type = pattern_type %ptr.79a [concrete]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %HoldsType.as.Destroy.impl.Op.26d, @HoldsType.as.Destroy.impl.Op(%tuple) [concrete]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %HoldsType.as.Destroy.impl.Op.6cf, @HoldsType.as.Destroy.impl.Op(%tuple) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -216,14 +216,14 @@ fn G() {
 // CHECK:STDOUT: generic impl @HoldsType.as.Destroy.impl(@HoldsType.%T.loc4_17.2: %tuple.type) {
 // CHECK:STDOUT:   %T: %tuple.type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.6eb)]
 // CHECK:STDOUT:   %HoldsType: type = class_type @HoldsType, @HoldsType(%T) [symbolic = %HoldsType (constants.%HoldsType.cc9)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d43)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a65)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type.939)]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.939) = struct_value () [symbolic = %HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.2fb)]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type.edc)]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.edc) = struct_value () [symbolic = %HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.c18)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @HoldsType.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %HoldsType.as.Destroy.impl.Op.decl: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.939) = fn_decl @HoldsType.as.Destroy.impl.Op [symbolic = @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.2fb)] {
+// CHECK:STDOUT:     %HoldsType.as.Destroy.impl.Op.decl: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.edc) = fn_decl @HoldsType.as.Destroy.impl.Op [symbolic = @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.c18)] {
 // CHECK:STDOUT:       %self.patt: @HoldsType.as.Destroy.impl.Op.%pattern_type (%pattern_type.c39) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @HoldsType.as.Destroy.impl.Op.%pattern_type (%pattern_type.c39) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc4_31.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -267,7 +267,7 @@ fn G() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%HoldsType.cc9 [symbolic = @HoldsType.as.Destroy.impl.%HoldsType (constants.%HoldsType.cc9)]
 // CHECK:STDOUT:     impl_decl @HoldsType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.decl), @HoldsType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.6eb) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d43)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.6eb) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a65)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -280,7 +280,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -344,8 +344,8 @@ fn G() {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_30.4, constants.%C.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc13_30: %ptr.019 = addr_of %.loc13_30.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %C.as.Destroy.impl.Op.bound(%addr.loc13_30)
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_6.4, constants.%HoldsType.as.Destroy.impl.Op.26d
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%HoldsType.as.Destroy.impl.Op.26d, @HoldsType.as.Destroy.impl.Op(constants.%tuple) [concrete = constants.%HoldsType.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_6.4, constants.%HoldsType.as.Destroy.impl.Op.6cf
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%HoldsType.as.Destroy.impl.Op.6cf, @HoldsType.as.Destroy.impl.Op(constants.%tuple) [concrete = constants.%HoldsType.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc13_6.4, %HoldsType.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc13_6: %ptr.79a = addr_of %.loc13_6.4
 // CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc13_6)
@@ -361,7 +361,7 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%T.6eb) {
 // CHECK:STDOUT:   %T => constants.%T.6eb
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.cc9
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d43
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a65
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%T.6eb) {
@@ -400,11 +400,11 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%tuple) {
 // CHECK:STDOUT:   %T => constants.%tuple
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.c09
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7a6
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fb8
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type => constants.%HoldsType.as.Destroy.impl.Op.type.c3f
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op => constants.%HoldsType.as.Destroy.impl.Op.26d
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type => constants.%HoldsType.as.Destroy.impl.Op.type.2bc
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op => constants.%HoldsType.as.Destroy.impl.Op.6cf
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%tuple) {
@@ -427,11 +427,11 @@ fn G() {
 // CHECK:STDOUT:   %HoldsType.843: type = class_type @HoldsType, @HoldsType(%T.08d) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.715: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.08d) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.3f2: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.08d) [symbolic]
 // CHECK:STDOUT:   %ptr.ca6: type = ptr_type %HoldsType.843 [symbolic]
 // CHECK:STDOUT:   %pattern_type.051: type = pattern_type %ptr.ca6 [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.151: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.08d) [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.12d: %HoldsType.as.Destroy.impl.Op.type.151 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.ef4: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.08d) [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.169: %HoldsType.as.Destroy.impl.Op.type.ef4 = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %pattern_type.aa4: type = pattern_type %HoldsType.843 [symbolic]
@@ -442,7 +442,7 @@ fn G() {
 // CHECK:STDOUT:   %require_complete.b19: <witness> = require_complete_type %HoldsType.843 [symbolic]
 // CHECK:STDOUT:   %require_complete.1b9: <witness> = require_complete_type %.20a [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -456,12 +456,12 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%struct) [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.131: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%struct) [concrete]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.d13: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%struct) [concrete]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.7b8: %HoldsType.as.Destroy.impl.Op.type.d13 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.aac: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%struct) [concrete]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.683: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%struct) [concrete]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.1a9: %HoldsType.as.Destroy.impl.Op.type.683 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d1: type = ptr_type %HoldsType.705 [concrete]
 // CHECK:STDOUT:   %pattern_type.c97: type = pattern_type %ptr.5d1 [concrete]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %HoldsType.as.Destroy.impl.Op.7b8, @HoldsType.as.Destroy.impl.Op(%struct) [concrete]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %HoldsType.as.Destroy.impl.Op.1a9, @HoldsType.as.Destroy.impl.Op(%struct) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -524,14 +524,14 @@ fn G() {
 // CHECK:STDOUT: generic impl @HoldsType.as.Destroy.impl(@HoldsType.%T.loc4_17.2: %struct_type.t) {
 // CHECK:STDOUT:   %T: %struct_type.t = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.08d)]
 // CHECK:STDOUT:   %HoldsType: type = class_type @HoldsType, @HoldsType(%T) [symbolic = %HoldsType (constants.%HoldsType.843)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.715)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.3f2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type.151)]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.151) = struct_value () [symbolic = %HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.12d)]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type.ef4)]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.ef4) = struct_value () [symbolic = %HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.169)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @HoldsType.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %HoldsType.as.Destroy.impl.Op.decl: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.151) = fn_decl @HoldsType.as.Destroy.impl.Op [symbolic = @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.12d)] {
+// CHECK:STDOUT:     %HoldsType.as.Destroy.impl.Op.decl: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.ef4) = fn_decl @HoldsType.as.Destroy.impl.Op [symbolic = @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.169)] {
 // CHECK:STDOUT:       %self.patt: @HoldsType.as.Destroy.impl.Op.%pattern_type (%pattern_type.051) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @HoldsType.as.Destroy.impl.Op.%pattern_type (%pattern_type.051) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc4_33.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -575,7 +575,7 @@ fn G() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%HoldsType.843 [symbolic = @HoldsType.as.Destroy.impl.%HoldsType (constants.%HoldsType.843)]
 // CHECK:STDOUT:     impl_decl @HoldsType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.decl), @HoldsType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.08d) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.715)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.08d) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.3f2)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -588,7 +588,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -652,8 +652,8 @@ fn G() {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_33.4, constants.%C.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc13_33: %ptr.019 = addr_of %.loc13_33.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %C.as.Destroy.impl.Op.bound(%addr.loc13_33)
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_6.4, constants.%HoldsType.as.Destroy.impl.Op.7b8
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%HoldsType.as.Destroy.impl.Op.7b8, @HoldsType.as.Destroy.impl.Op(constants.%struct) [concrete = constants.%HoldsType.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_6.4, constants.%HoldsType.as.Destroy.impl.Op.1a9
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%HoldsType.as.Destroy.impl.Op.1a9, @HoldsType.as.Destroy.impl.Op(constants.%struct) [concrete = constants.%HoldsType.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc13_6.4, %HoldsType.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc13_6: %ptr.5d1 = addr_of %.loc13_6.4
 // CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc13_6)
@@ -669,7 +669,7 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%T.08d) {
 // CHECK:STDOUT:   %T => constants.%T.08d
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.843
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.715
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.3f2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%T.08d) {
@@ -708,11 +708,11 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%struct) {
 // CHECK:STDOUT:   %T => constants.%struct
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.705
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.131
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.aac
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type => constants.%HoldsType.as.Destroy.impl.Op.type.d13
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op => constants.%HoldsType.as.Destroy.impl.Op.7b8
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type => constants.%HoldsType.as.Destroy.impl.Op.type.683
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op => constants.%HoldsType.as.Destroy.impl.Op.1a9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%struct) {
@@ -730,7 +730,7 @@ fn G() {
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b40: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.73b: <witness> = impl_witness @Class.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [concrete]
 // CHECK:STDOUT:   %pattern_type.796: type = pattern_type %ptr.e71 [concrete]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op [concrete]
@@ -744,11 +744,11 @@ fn G() {
 // CHECK:STDOUT:   %HoldsType.type: type = generic_class_type @HoldsType [concrete]
 // CHECK:STDOUT:   %HoldsType.generic: %HoldsType.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HoldsType.f95cf2.1: type = class_type @HoldsType, @HoldsType(%T.0de) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.2b4af8.1: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.0de) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.a479d7.1: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.0de) [symbolic]
 // CHECK:STDOUT:   %ptr.deb697.1: type = ptr_type %HoldsType.f95cf2.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.dc9093.1: type = pattern_type %ptr.deb697.1 [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.8c02a9.1: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.0de) [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.138e7c.1: %HoldsType.as.Destroy.impl.Op.type.8c02a9.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.0c4356.1: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.0de) [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.2e9888.1: %HoldsType.as.Destroy.impl.Op.type.0c4356.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %pattern_type.937: type = pattern_type %HoldsType.f95cf2.1 [symbolic]
@@ -757,7 +757,7 @@ fn G() {
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.8fa644.1: <witness> = require_complete_type %HoldsType.f95cf2.1 [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -768,14 +768,14 @@ fn G() {
 // CHECK:STDOUT:   %Class.val: %Class = struct_value (%C) [concrete]
 // CHECK:STDOUT:   %HoldsType.f95cf2.2: type = class_type @HoldsType, @HoldsType(%c) [symbolic]
 // CHECK:STDOUT:   %HoldsType.val: %HoldsType.f95cf2.2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.2b4af8.2: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%c) [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.8c02a9.2: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%c) [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.138e7c.2: %HoldsType.as.Destroy.impl.Op.type.8c02a9.2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.d8aee7.2: %Destroy.type = facet_value %HoldsType.f95cf2.2, (%Destroy.impl_witness.2b4af8.2) [symbolic]
-// CHECK:STDOUT:   %.e9e: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.d8aee7.2 [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.a479d7.2: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%c) [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type.0c4356.2: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%c) [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.2e9888.2: %HoldsType.as.Destroy.impl.Op.type.0c4356.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.f33acf.2: %Destroy.type = facet_value %HoldsType.f95cf2.2, (%Destroy.impl_witness.a479d7.2) [symbolic]
+// CHECK:STDOUT:   %.dca: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.f33acf.2 [symbolic]
 // CHECK:STDOUT:   %ptr.deb697.2: type = ptr_type %HoldsType.f95cf2.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.dc9093.2: type = pattern_type %ptr.deb697.2 [symbolic]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %HoldsType.as.Destroy.impl.Op.138e7c.2, @HoldsType.as.Destroy.impl.Op(%c) [symbolic]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %HoldsType.as.Destroy.impl.Op.2e9888.2, @HoldsType.as.Destroy.impl.Op(%c) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -858,14 +858,14 @@ fn G() {
 // CHECK:STDOUT: generic impl @HoldsType.as.Destroy.impl(@HoldsType.%T.loc8_17.2: %Class) {
 // CHECK:STDOUT:   %T: %Class = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.0de)]
 // CHECK:STDOUT:   %HoldsType: type = class_type @HoldsType, @HoldsType(%T) [symbolic = %HoldsType (constants.%HoldsType.f95cf2.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.2b4af8.1)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a479d7.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type.8c02a9.1)]
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.8c02a9.1) = struct_value () [symbolic = %HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.138e7c.1)]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type.0c4356.1)]
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.0c4356.1) = struct_value () [symbolic = %HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.2e9888.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @HoldsType.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %HoldsType.as.Destroy.impl.Op.decl: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.8c02a9.1) = fn_decl @HoldsType.as.Destroy.impl.Op [symbolic = @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.138e7c.1)] {
+// CHECK:STDOUT:     %HoldsType.as.Destroy.impl.Op.decl: @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.type (%HoldsType.as.Destroy.impl.Op.type.0c4356.1) = fn_decl @HoldsType.as.Destroy.impl.Op [symbolic = @HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op (constants.%HoldsType.as.Destroy.impl.Op.2e9888.1)] {
 // CHECK:STDOUT:       %self.patt: @HoldsType.as.Destroy.impl.Op.%pattern_type (%pattern_type.dc9093.1) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @HoldsType.as.Destroy.impl.Op.%pattern_type (%pattern_type.dc9093.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc8_28.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -905,7 +905,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Class [concrete = constants.%Class]
 // CHECK:STDOUT:   impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b40]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.t [concrete = constants.%complete_type.509]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -923,7 +923,7 @@ fn G() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%HoldsType.f95cf2.1 [symbolic = @HoldsType.as.Destroy.impl.%HoldsType (constants.%HoldsType.f95cf2.1)]
 // CHECK:STDOUT:     impl_decl @HoldsType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.decl), @HoldsType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.0de) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.2b4af8.1)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.0de) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a479d7.1)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -936,7 +936,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1004,7 +1004,7 @@ fn G() {
 // CHECK:STDOUT:   %.loc27_6.4: ref %HoldsType.f95cf2.2 = temporary %.loc27_6.2, %.loc27_6.3
 // CHECK:STDOUT:   %.loc27_8: ref %HoldsType.f95cf2.2 = converted %.loc27_6.1, %.loc27_6.4
 // CHECK:STDOUT:   %.loc27_26: %empty_struct_type = struct_literal ()
-// CHECK:STDOUT:   %impl.elem0: %.e9e = impl_witness_access constants.%Destroy.impl_witness.2b4af8.2, element0 [symbolic = constants.%HoldsType.as.Destroy.impl.Op.138e7c.2]
+// CHECK:STDOUT:   %impl.elem0: %.dca = impl_witness_access constants.%Destroy.impl_witness.a479d7.2, element0 [symbolic = constants.%HoldsType.as.Destroy.impl.Op.2e9888.2]
 // CHECK:STDOUT:   %bound_method.loc27_6.1: <bound method> = bound_method %.loc27_6.4, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @HoldsType.as.Destroy.impl.Op(constants.%c) [symbolic = constants.%HoldsType.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc27_6.2: <bound method> = bound_method %.loc27_6.4, %specific_fn
@@ -1025,7 +1025,7 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%T.0de) {
 // CHECK:STDOUT:   %T => constants.%T.0de
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.f95cf2.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2b4af8.1
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a479d7.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%T.0de) {
@@ -1051,11 +1051,11 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%c) {
 // CHECK:STDOUT:   %T => constants.%c
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.f95cf2.2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2b4af8.2
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a479d7.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type => constants.%HoldsType.as.Destroy.impl.Op.type.8c02a9.2
-// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op => constants.%HoldsType.as.Destroy.impl.Op.138e7c.2
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type => constants.%HoldsType.as.Destroy.impl.Op.type.0c4356.2
+// CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op => constants.%HoldsType.as.Destroy.impl.Op.2e9888.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%c) {
@@ -1079,7 +1079,7 @@ fn G() {
 // CHECK:STDOUT:   %HoldsType: type = class_type @HoldsType, @HoldsType(%T.eb6) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.139: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.eb6) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.967: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.eb6) [symbolic]
 // CHECK:STDOUT:   %ptr.ea3: type = ptr_type %array_type [concrete]
 // CHECK:STDOUT:   %ptr.998: type = ptr_type %HoldsType [symbolic]
 // CHECK:STDOUT:   %pattern_type.34f: type = pattern_type %ptr.998 [symbolic]
@@ -1095,25 +1095,25 @@ fn G() {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.640: <witness> = require_complete_type %HoldsType [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1122,9 +1122,9 @@ fn G() {
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (type) [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.8a7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.246: %T.as.Destroy.impl.Op.type.8a7 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.246, @T.as.Destroy.impl.Op(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2ec: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fb7: %T.as.Destroy.impl.Op.type.2ec = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.fb7, @T.as.Destroy.impl.Op(%array_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1138,8 +1138,8 @@ fn G() {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1187,7 +1187,7 @@ fn G() {
 // CHECK:STDOUT:       %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:       %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:       %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:       %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:       %bound_method.loc12_48.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc12_48.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -1207,7 +1207,7 @@ fn G() {
 // CHECK:STDOUT: generic impl @HoldsType.as.Destroy.impl(@HoldsType.%T.loc4_17.2: %array_type) {
 // CHECK:STDOUT:   %T: %array_type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.eb6)]
 // CHECK:STDOUT:   %HoldsType: type = class_type @HoldsType, @HoldsType(%T) [symbolic = %HoldsType (constants.%HoldsType)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.139)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.967)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type)]
@@ -1258,7 +1258,7 @@ fn G() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%HoldsType [symbolic = @HoldsType.as.Destroy.impl.%HoldsType (constants.%HoldsType)]
 // CHECK:STDOUT:     impl_decl @HoldsType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.decl), @HoldsType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.eb6) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.139)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.eb6) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.967)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1271,7 +1271,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1324,8 +1324,8 @@ fn G() {
 // CHECK:STDOUT:   %.loc24_27.2: ref %array_type = temporary %.loc24_25.2, %.loc24_27.1
 // CHECK:STDOUT:   %.loc24_27.3: %array_type = bind_value %.loc24_27.2
 // CHECK:STDOUT:   %.loc24_48: %empty_struct_type = struct_literal ()
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_27.2, constants.%T.as.Destroy.impl.Op.246
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.246, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_27.2, constants.%T.as.Destroy.impl.Op.fb7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fb7, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc24_27.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.ea3 = addr_of %.loc24_27.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -1341,7 +1341,7 @@ fn G() {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%T.eb6) {
 // CHECK:STDOUT:   %T => constants.%T.eb6
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.139
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.967
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%T.eb6) {
diff --git a/toolchain/check/testdata/eval/aggregates.carbon b/toolchain/check/testdata/eval/aggregates.carbon
index a5eb45b43730..6b80d3609b4e 100644
--- a/toolchain/check/testdata/eval/aggregates.carbon
+++ b/toolchain/check/testdata/eval/aggregates.carbon
@@ -64,22 +64,22 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.21c: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access file.%tuple_copy.var, element0 [concrete]
@@ -89,8 +89,8 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct_type.c.b.a: type = struct_type {.c: Core.IntLiteral, .b: Core.IntLiteral, .a: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %struct_type.b.a.c: type = struct_type {.b: %i32, .a: %i32, .c: %i32} [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct.21d: %struct_type.b.a.c = struct_value (%int_2.ef8, %int_1.5d2, %int_3.822) [concrete]
 // CHECK:STDOUT:   %.91e: ref %i32 = struct_access file.%struct_copy.var, element1 [concrete]
@@ -106,8 +106,8 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %int_9: Core.IntLiteral = int_value 9 [concrete]
 // CHECK:STDOUT:   %tuple.type.d46: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %tuple.869: %tuple.type.d46 = tuple_value (%int_5, %int_7, %int_1.5b8, %int_9) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_0.6a9) [concrete]
 // CHECK:STDOUT:   %struct_type.a.b: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
@@ -115,8 +115,8 @@ fn G(N:! i32) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -186,17 +186,17 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %i32.loc4_46: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   %.loc4_49.1: %tuple.type.24b = tuple_literal (%i32.loc4_41, %i32.loc4_46)
 // CHECK:STDOUT:   %.loc4_49.2: type = converted %.loc4_49.1, constants.%tuple.type.d07 [concrete = constants.%tuple.type.d07]
-// CHECK:STDOUT:   %impl.elem0.loc4_35.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc4_35.1: <bound method> = bound_method %int_1.loc4, %impl.elem0.loc4_35.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc4_35.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc4_35.1: <bound method> = bound_method %int_1.loc4, %impl.elem0.loc4_35.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc4_35.1: <specific function> = specific_function %impl.elem0.loc4_35.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc4_35.2: <bound method> = bound_method %int_1.loc4, %specific_fn.loc4_35.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc4_35.2: <bound method> = bound_method %int_1.loc4, %specific_fn.loc4_35.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_35.1: init %i32 = call %bound_method.loc4_35.2(%int_1.loc4) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc4_35.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_35.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc4_35.3: %i32 = converted %int_1.loc4, %.loc4_35.2 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc4_35.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc4_35.3: <bound method> = bound_method %int_2.loc4, %impl.elem0.loc4_35.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc4_35.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc4_35.3: <bound method> = bound_method %int_2.loc4, %impl.elem0.loc4_35.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc4_35.2: <specific function> = specific_function %impl.elem0.loc4_35.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc4_35.4: <bound method> = bound_method %int_2.loc4, %specific_fn.loc4_35.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc4_35.4: <bound method> = bound_method %int_2.loc4, %specific_fn.loc4_35.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_35.2: init %i32 = call %bound_method.loc4_35.4(%int_2.loc4) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc4_35.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_35.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc4_35.5: %i32 = converted %int_2.loc4, %.loc4_35.4 [concrete = constants.%int_2.ef8]
@@ -222,24 +222,24 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %int_32.loc6_99: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc6_99: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   %struct_type.b.a.c: type = struct_type {.b: %i32, .a: %i32, .c: %i32} [concrete = constants.%struct_type.b.a.c]
-// CHECK:STDOUT:   %impl.elem0.loc6_71.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_71.1: <bound method> = bound_method %int_2.loc6, %impl.elem0.loc6_71.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc6_71.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_71.1: <bound method> = bound_method %int_2.loc6, %impl.elem0.loc6_71.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc6_71.1: <specific function> = specific_function %impl.elem0.loc6_71.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_71.2: <bound method> = bound_method %int_2.loc6, %specific_fn.loc6_71.1 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc6_71.2: <bound method> = bound_method %int_2.loc6, %specific_fn.loc6_71.1 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_71.1: init %i32 = call %bound_method.loc6_71.2(%int_2.loc6) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc6_71.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_71.1 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc6_71.3: %i32 = converted %int_2.loc6, %.loc6_71.2 [concrete = constants.%int_2.ef8]
-// CHECK:STDOUT:   %impl.elem0.loc6_71.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_71.3: <bound method> = bound_method %int_1.loc6, %impl.elem0.loc6_71.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc6_71.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_71.3: <bound method> = bound_method %int_1.loc6, %impl.elem0.loc6_71.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc6_71.2: <specific function> = specific_function %impl.elem0.loc6_71.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_71.4: <bound method> = bound_method %int_1.loc6, %specific_fn.loc6_71.2 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc6_71.4: <bound method> = bound_method %int_1.loc6, %specific_fn.loc6_71.2 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_71.2: init %i32 = call %bound_method.loc6_71.4(%int_1.loc6) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc6_71.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_71.2 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc6_71.5: %i32 = converted %int_1.loc6, %.loc6_71.4 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc6_71.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_71.5: <bound method> = bound_method %int_3.loc6, %impl.elem0.loc6_71.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc6_71.3: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_71.5: <bound method> = bound_method %int_3.loc6, %impl.elem0.loc6_71.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc6_71.3: <specific function> = specific_function %impl.elem0.loc6_71.3, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_71.6: <bound method> = bound_method %int_3.loc6, %specific_fn.loc6_71.3 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc6_71.6: <bound method> = bound_method %int_3.loc6, %specific_fn.loc6_71.3 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_71.3: init %i32 = call %bound_method.loc6_71.6(%int_3.loc6) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc6_71.6: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_71.3 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc6_71.7: %i32 = converted %int_3.loc6, %.loc6_71.6 [concrete = constants.%int_3.822]
@@ -271,10 +271,10 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %.loc8_64.2: %tuple.type.d46 = converted %.loc8_64.1, %tuple.loc8 [concrete = constants.%tuple.869]
 // CHECK:STDOUT:   %tuple.elem2: Core.IntLiteral = tuple_access %.loc8_64.2, element2 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %array_type.loc8: type = array_type %tuple.elem2, %i32.loc8 [concrete = constants.%array_type]
-// CHECK:STDOUT:   %impl.elem0.loc8: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_37.1: <bound method> = bound_method %int_0.loc8_35, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_37.1: <bound method> = bound_method %int_0.loc8_35, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_37.2: <bound method> = bound_method %int_0.loc8_35, %specific_fn.loc8 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc8_37.2: <bound method> = bound_method %int_0.loc8_35, %specific_fn.loc8 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8: init %i32 = call %bound_method.loc8_37.2(%int_0.loc8_35) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc8_37.2: init %i32 = converted %int_0.loc8_35, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc8_1: ref %array_type = splice_block file.%tuple_index.var [concrete = file.%tuple_index.var] {}
@@ -295,10 +295,10 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %.loc10_70.2: %struct_type.a.b = converted %.loc10_70.1, %struct.loc10 [concrete = constants.%struct.a81]
 // CHECK:STDOUT:   %.loc10_71: Core.IntLiteral = struct_access %.loc10_70.2, element1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %array_type.loc10: type = array_type %.loc10_71, %i32.loc10 [concrete = constants.%array_type]
-// CHECK:STDOUT:   %impl.elem0.loc10: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_39.1: <bound method> = bound_method %int_0.loc10_37, %impl.elem0.loc10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc10: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_39.1: <bound method> = bound_method %int_0.loc10_37, %impl.elem0.loc10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc10: <specific function> = specific_function %impl.elem0.loc10, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_39.2: <bound method> = bound_method %int_0.loc10_37, %specific_fn.loc10 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc10_39.2: <bound method> = bound_method %int_0.loc10_37, %specific_fn.loc10 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10: init %i32 = call %bound_method.loc10_39.2(%int_0.loc10_37) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc10_39.2: init %i32 = converted %int_0.loc10_37, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc10_1: ref %array_type = splice_block file.%struct_access.var [concrete = file.%struct_access.var] {}
@@ -327,40 +327,40 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %tuple.type.d46: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete]
 // CHECK:STDOUT:   %array_type.f32: type = array_type %int_4, %i32 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.3bd: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.c8a: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_7.0b1: %i32 = int_value 7 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.cd3: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.da6: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_9.f88: %i32 = int_value 9 [concrete]
 // CHECK:STDOUT:   %array: %array_type.f32 = tuple_value (%int_5.0f6, %int_7.0b1, %int_1.5d2, %int_9.f88) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -393,38 +393,38 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %i32.loc9_76: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4]
 // CHECK:STDOUT:   %array_type: type = array_type %int_4, %i32.loc9_76 [concrete = constants.%array_type.f32]
-// CHECK:STDOUT:   %impl.elem0.loc9_65.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_65.1: <bound method> = bound_method %int_5, %impl.elem0.loc9_65.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc9_65.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_65.1: <bound method> = bound_method %int_5, %impl.elem0.loc9_65.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc9_65.1: <specific function> = specific_function %impl.elem0.loc9_65.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_65.2: <bound method> = bound_method %int_5, %specific_fn.loc9_65.1 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc9_65.2: <bound method> = bound_method %int_5, %specific_fn.loc9_65.1 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.1: init %i32 = call %bound_method.loc9_65.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc9_65.2: init %i32 = converted %int_5, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.1 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc9_65.3: ref %array_type.f32 = temporary_storage
 // CHECK:STDOUT:   %int_0.loc9_65: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:   %.loc9_65.4: ref %i32 = array_index %.loc9_65.3, %int_0.loc9_65
 // CHECK:STDOUT:   %.loc9_65.5: init %i32 = initialize_from %.loc9_65.2 to %.loc9_65.4 [concrete = constants.%int_5.0f6]
-// CHECK:STDOUT:   %impl.elem0.loc9_65.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_65.3: <bound method> = bound_method %int_7, %impl.elem0.loc9_65.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208]
+// CHECK:STDOUT:   %impl.elem0.loc9_65.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_65.3: <bound method> = bound_method %int_7, %impl.elem0.loc9_65.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2]
 // CHECK:STDOUT:   %specific_fn.loc9_65.2: <specific function> = specific_function %impl.elem0.loc9_65.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_65.4: <bound method> = bound_method %int_7, %specific_fn.loc9_65.2 [concrete = constants.%bound_method.3bd]
+// CHECK:STDOUT:   %bound_method.loc9_65.4: <bound method> = bound_method %int_7, %specific_fn.loc9_65.2 [concrete = constants.%bound_method.c8a]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.2: init %i32 = call %bound_method.loc9_65.4(%int_7) [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:   %.loc9_65.6: init %i32 = converted %int_7, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.2 [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:   %int_1.loc9_65: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc9_65.7: ref %i32 = array_index %.loc9_65.3, %int_1.loc9_65
 // CHECK:STDOUT:   %.loc9_65.8: init %i32 = initialize_from %.loc9_65.6 to %.loc9_65.7 [concrete = constants.%int_7.0b1]
-// CHECK:STDOUT:   %impl.elem0.loc9_65.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_65.5: <bound method> = bound_method %int_1.loc9_61, %impl.elem0.loc9_65.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc9_65.3: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_65.5: <bound method> = bound_method %int_1.loc9_61, %impl.elem0.loc9_65.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc9_65.3: <specific function> = specific_function %impl.elem0.loc9_65.3, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_65.6: <bound method> = bound_method %int_1.loc9_61, %specific_fn.loc9_65.3 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc9_65.6: <bound method> = bound_method %int_1.loc9_61, %specific_fn.loc9_65.3 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.3: init %i32 = call %bound_method.loc9_65.6(%int_1.loc9_61) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc9_65.9: init %i32 = converted %int_1.loc9_61, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.3 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %int_2.loc9_65: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc9_65.10: ref %i32 = array_index %.loc9_65.3, %int_2.loc9_65
 // CHECK:STDOUT:   %.loc9_65.11: init %i32 = initialize_from %.loc9_65.9 to %.loc9_65.10 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc9_65.4: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_65.7: <bound method> = bound_method %int_9, %impl.elem0.loc9_65.4 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2]
+// CHECK:STDOUT:   %impl.elem0.loc9_65.4: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_65.7: <bound method> = bound_method %int_9, %impl.elem0.loc9_65.4 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025]
 // CHECK:STDOUT:   %specific_fn.loc9_65.4: <specific function> = specific_function %impl.elem0.loc9_65.4, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_65.8: <bound method> = bound_method %int_9, %specific_fn.loc9_65.4 [concrete = constants.%bound_method.cd3]
+// CHECK:STDOUT:   %bound_method.loc9_65.8: <bound method> = bound_method %int_9, %specific_fn.loc9_65.4 [concrete = constants.%bound_method.da6]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.4: init %i32 = call %bound_method.loc9_65.8(%int_9) [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %.loc9_65.12: init %i32 = converted %int_9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_65.4 [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3]
@@ -436,10 +436,10 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %.loc9_67.2: ref %array_type.f32 = temporary %.loc9_65.3, %.loc9_67.1
 // CHECK:STDOUT:   %int_32.loc9_86: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc9_86: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc9_85: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_85.1: <bound method> = bound_method %int_2.loc9_85, %impl.elem0.loc9_85 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc9_85: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_85.1: <bound method> = bound_method %int_2.loc9_85, %impl.elem0.loc9_85 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc9_85: <specific function> = specific_function %impl.elem0.loc9_85, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_85.2: <bound method> = bound_method %int_2.loc9_85, %specific_fn.loc9_85 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc9_85.2: <bound method> = bound_method %int_2.loc9_85, %specific_fn.loc9_85 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_85: init %i32 = call %bound_method.loc9_85.2(%int_2.loc9_85) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc9_85.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_85 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc9_85.2: %i32 = converted %int_2.loc9_85, %.loc9_85.1 [concrete = constants.%int_2.ef8]
@@ -473,55 +473,55 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %require_complete.b09: <witness> = require_complete_type %ptr.1a0 [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.b45: <witness> = lookup_impl_witness %array_type.ec2, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.0d3: %Destroy.type = facet_value %array_type.ec2, (%Destroy.lookup_impl_witness.b45) [symbolic]
-// CHECK:STDOUT:   %.03f: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.0d3 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.1ce: %.03f = impl_witness_access %Destroy.lookup_impl_witness.b45, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.236: <specific function> = specific_impl_function %impl.elem0.1ce, @Destroy.Op(%Destroy.facet.0d3) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.d51: %Destroy.type = facet_value %array_type.ec2, (%Destroy.lookup_impl_witness.b45) [symbolic]
+// CHECK:STDOUT:   %.895: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.d51 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.90d: %.895 = impl_witness_access %Destroy.lookup_impl_witness.b45, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.91b: <specific function> = specific_impl_function %impl.elem0.90d, @Destroy.Op(%Destroy.facet.d51) [symbolic]
 // CHECK:STDOUT:   %ptr.48a: type = ptr_type %struct_type.a [symbolic]
 // CHECK:STDOUT:   %require_complete.86d: <witness> = require_complete_type %ptr.48a [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.b34: <witness> = lookup_impl_witness %struct_type.a, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.2c9: %Destroy.type = facet_value %struct_type.a, (%Destroy.lookup_impl_witness.b34) [symbolic]
-// CHECK:STDOUT:   %.b85: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.2c9 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.dc9: %.b85 = impl_witness_access %Destroy.lookup_impl_witness.b34, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.2a6: <specific function> = specific_impl_function %impl.elem0.dc9, @Destroy.Op(%Destroy.facet.2c9) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.603: %Destroy.type = facet_value %struct_type.a, (%Destroy.lookup_impl_witness.b34) [symbolic]
+// CHECK:STDOUT:   %.259: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.603 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.6c8: %.259 = impl_witness_access %Destroy.lookup_impl_witness.b34, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.4ab: <specific function> = specific_impl_function %impl.elem0.6c8, @Destroy.Op(%Destroy.facet.603) [symbolic]
 // CHECK:STDOUT:   %require_complete.66e: <witness> = require_complete_type %ptr.6cd [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.a8a: <witness> = lookup_impl_witness %tuple.type.4f2, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.7be: %Destroy.type = facet_value %tuple.type.4f2, (%Destroy.lookup_impl_witness.a8a) [symbolic]
-// CHECK:STDOUT:   %.f5c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.7be [symbolic]
-// CHECK:STDOUT:   %impl.elem0.87c: %.f5c = impl_witness_access %Destroy.lookup_impl_witness.a8a, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.4b8: <specific function> = specific_impl_function %impl.elem0.87c, @Destroy.Op(%Destroy.facet.7be) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.962: %Destroy.type = facet_value %tuple.type.4f2, (%Destroy.lookup_impl_witness.a8a) [symbolic]
+// CHECK:STDOUT:   %.2aa: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.962 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.5e6: %.2aa = impl_witness_access %Destroy.lookup_impl_witness.a8a, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.b17: <specific function> = specific_impl_function %impl.elem0.5e6, @Destroy.Op(%Destroy.facet.962) [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %N.51e: %i32 = bind_symbolic_name N, 0 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.960 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.87c [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method(%N.51e) [symbolic]
-// CHECK:STDOUT:   %array_type.c7c: type = array_type %Int.as.ImplicitAs.impl.Convert.call, %i32 [symbolic]
-// CHECK:STDOUT:   %ptr.0ad: type = ptr_type %array_type.c7c [symbolic]
-// CHECK:STDOUT:   %require_complete.7cb: <witness> = require_complete_type %array_type.c7c [symbolic]
-// CHECK:STDOUT:   %pattern_type.ccc: type = pattern_type %array_type.c7c [symbolic]
-// CHECK:STDOUT:   %require_complete.7d5: <witness> = require_complete_type %ptr.0ad [symbolic]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness.4fa: <witness> = lookup_impl_witness %array_type.c7c, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.ad4: %Destroy.type = facet_value %array_type.c7c, (%Destroy.lookup_impl_witness.4fa) [symbolic]
-// CHECK:STDOUT:   %.a57: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.ad4 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.f15: %.a57 = impl_witness_access %Destroy.lookup_impl_witness.4fa, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.bae: <specific function> = specific_impl_function %impl.elem0.f15, @Destroy.Op(%Destroy.facet.ad4) [symbolic]
+// CHECK:STDOUT:   %array_type.c44: type = array_type %Int.as.ImplicitAs.impl.Convert.call, %i32 [symbolic]
+// CHECK:STDOUT:   %ptr.bce: type = ptr_type %array_type.c44 [symbolic]
+// CHECK:STDOUT:   %require_complete.c7e: <witness> = require_complete_type %array_type.c44 [symbolic]
+// CHECK:STDOUT:   %pattern_type.9d4: type = pattern_type %array_type.c44 [symbolic]
+// CHECK:STDOUT:   %require_complete.1c9: <witness> = require_complete_type %ptr.bce [symbolic]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness.f9d: <witness> = lookup_impl_witness %array_type.c44, @Destroy [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.5e0: %Destroy.type = facet_value %array_type.c44, (%Destroy.lookup_impl_witness.f9d) [symbolic]
+// CHECK:STDOUT:   %.bf2: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.5e0 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.46e: %.bf2 = impl_witness_access %Destroy.lookup_impl_witness.f9d, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.4c0: <specific function> = specific_impl_function %impl.elem0.46e, @Destroy.Op(%Destroy.facet.5e0) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%T.loc4_6.2: type) {
@@ -540,24 +540,24 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   %require_complete.loc8_20: <witness> = require_complete_type %array_type.loc8_20.2 [symbolic = %require_complete.loc8_20 (constants.%require_complete.fe1)]
 // CHECK:STDOUT:   %pattern_type.loc8: type = pattern_type %array_type.loc8_20.2 [symbolic = %pattern_type.loc8 (constants.%pattern_type.035)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.loc8: <witness> = lookup_impl_witness %array_type.loc8_20.2, @Destroy [symbolic = %Destroy.lookup_impl_witness.loc8 (constants.%Destroy.lookup_impl_witness.b45)]
-// CHECK:STDOUT:   %Destroy.facet.loc8: %Destroy.type = facet_value %array_type.loc8_20.2, (%Destroy.lookup_impl_witness.loc8) [symbolic = %Destroy.facet.loc8 (constants.%Destroy.facet.0d3)]
-// CHECK:STDOUT:   %.loc8_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet.loc8 [symbolic = %.loc8_3.2 (constants.%.03f)]
-// CHECK:STDOUT:   %impl.elem0.loc8_3.2: @F.%.loc8_3.2 (%.03f) = impl_witness_access %Destroy.lookup_impl_witness.loc8, element0 [symbolic = %impl.elem0.loc8_3.2 (constants.%impl.elem0.1ce)]
-// CHECK:STDOUT:   %specific_impl_fn.loc8_3.2: <specific function> = specific_impl_function %impl.elem0.loc8_3.2, @Destroy.Op(%Destroy.facet.loc8) [symbolic = %specific_impl_fn.loc8_3.2 (constants.%specific_impl_fn.236)]
+// CHECK:STDOUT:   %Destroy.facet.loc8: %Destroy.type = facet_value %array_type.loc8_20.2, (%Destroy.lookup_impl_witness.loc8) [symbolic = %Destroy.facet.loc8 (constants.%Destroy.facet.d51)]
+// CHECK:STDOUT:   %.loc8_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet.loc8 [symbolic = %.loc8_3.2 (constants.%.895)]
+// CHECK:STDOUT:   %impl.elem0.loc8_3.2: @F.%.loc8_3.2 (%.895) = impl_witness_access %Destroy.lookup_impl_witness.loc8, element0 [symbolic = %impl.elem0.loc8_3.2 (constants.%impl.elem0.90d)]
+// CHECK:STDOUT:   %specific_impl_fn.loc8_3.2: <specific function> = specific_impl_function %impl.elem0.loc8_3.2, @Destroy.Op(%Destroy.facet.loc8) [symbolic = %specific_impl_fn.loc8_3.2 (constants.%specific_impl_fn.91b)]
 // CHECK:STDOUT:   %ptr.loc8: type = ptr_type %array_type.loc8_20.2 [symbolic = %ptr.loc8 (constants.%ptr.1a0)]
 // CHECK:STDOUT:   %require_complete.loc8_3: <witness> = require_complete_type %ptr.loc8 [symbolic = %require_complete.loc8_3 (constants.%require_complete.b09)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.loc7: <witness> = lookup_impl_witness %struct_type.a.loc7_16.2, @Destroy [symbolic = %Destroy.lookup_impl_witness.loc7 (constants.%Destroy.lookup_impl_witness.b34)]
-// CHECK:STDOUT:   %Destroy.facet.loc7: %Destroy.type = facet_value %struct_type.a.loc7_16.2, (%Destroy.lookup_impl_witness.loc7) [symbolic = %Destroy.facet.loc7 (constants.%Destroy.facet.2c9)]
-// CHECK:STDOUT:   %.loc7_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet.loc7 [symbolic = %.loc7_3.2 (constants.%.b85)]
-// CHECK:STDOUT:   %impl.elem0.loc7_3.2: @F.%.loc7_3.2 (%.b85) = impl_witness_access %Destroy.lookup_impl_witness.loc7, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0.dc9)]
-// CHECK:STDOUT:   %specific_impl_fn.loc7_3.2: <specific function> = specific_impl_function %impl.elem0.loc7_3.2, @Destroy.Op(%Destroy.facet.loc7) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn.2a6)]
+// CHECK:STDOUT:   %Destroy.facet.loc7: %Destroy.type = facet_value %struct_type.a.loc7_16.2, (%Destroy.lookup_impl_witness.loc7) [symbolic = %Destroy.facet.loc7 (constants.%Destroy.facet.603)]
+// CHECK:STDOUT:   %.loc7_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet.loc7 [symbolic = %.loc7_3.2 (constants.%.259)]
+// CHECK:STDOUT:   %impl.elem0.loc7_3.2: @F.%.loc7_3.2 (%.259) = impl_witness_access %Destroy.lookup_impl_witness.loc7, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0.6c8)]
+// CHECK:STDOUT:   %specific_impl_fn.loc7_3.2: <specific function> = specific_impl_function %impl.elem0.loc7_3.2, @Destroy.Op(%Destroy.facet.loc7) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn.4ab)]
 // CHECK:STDOUT:   %ptr.loc7: type = ptr_type %struct_type.a.loc7_16.2 [symbolic = %ptr.loc7 (constants.%ptr.48a)]
 // CHECK:STDOUT:   %require_complete.loc7_3: <witness> = require_complete_type %ptr.loc7 [symbolic = %require_complete.loc7_3 (constants.%require_complete.86d)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.loc6: <witness> = lookup_impl_witness %tuple.type, @Destroy [symbolic = %Destroy.lookup_impl_witness.loc6 (constants.%Destroy.lookup_impl_witness.a8a)]
-// CHECK:STDOUT:   %Destroy.facet.loc6: %Destroy.type = facet_value %tuple.type, (%Destroy.lookup_impl_witness.loc6) [symbolic = %Destroy.facet.loc6 (constants.%Destroy.facet.7be)]
-// CHECK:STDOUT:   %.loc6_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet.loc6 [symbolic = %.loc6_3.2 (constants.%.f5c)]
-// CHECK:STDOUT:   %impl.elem0.loc6_3.2: @F.%.loc6_3.2 (%.f5c) = impl_witness_access %Destroy.lookup_impl_witness.loc6, element0 [symbolic = %impl.elem0.loc6_3.2 (constants.%impl.elem0.87c)]
-// CHECK:STDOUT:   %specific_impl_fn.loc6_3.2: <specific function> = specific_impl_function %impl.elem0.loc6_3.2, @Destroy.Op(%Destroy.facet.loc6) [symbolic = %specific_impl_fn.loc6_3.2 (constants.%specific_impl_fn.4b8)]
+// CHECK:STDOUT:   %Destroy.facet.loc6: %Destroy.type = facet_value %tuple.type, (%Destroy.lookup_impl_witness.loc6) [symbolic = %Destroy.facet.loc6 (constants.%Destroy.facet.962)]
+// CHECK:STDOUT:   %.loc6_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet.loc6 [symbolic = %.loc6_3.2 (constants.%.2aa)]
+// CHECK:STDOUT:   %impl.elem0.loc6_3.2: @F.%.loc6_3.2 (%.2aa) = impl_witness_access %Destroy.lookup_impl_witness.loc6, element0 [symbolic = %impl.elem0.loc6_3.2 (constants.%impl.elem0.5e6)]
+// CHECK:STDOUT:   %specific_impl_fn.loc6_3.2: <specific function> = specific_impl_function %impl.elem0.loc6_3.2, @Destroy.Op(%Destroy.facet.loc6) [symbolic = %specific_impl_fn.loc6_3.2 (constants.%specific_impl_fn.b17)]
 // CHECK:STDOUT:   %ptr.loc6_3: type = ptr_type %tuple.type [symbolic = %ptr.loc6_3 (constants.%ptr.6cd)]
 // CHECK:STDOUT:   %require_complete.loc6_3: <witness> = require_complete_type %ptr.loc6_3 [symbolic = %require_complete.loc6_3 (constants.%require_complete.66e)]
 // CHECK:STDOUT:
@@ -598,21 +598,21 @@ fn G(N:! i32) {
 // CHECK:STDOUT:       %array_type.loc8_20.1: type = array_type %int_5, %T.ref.loc8 [symbolic = %array_type.loc8_20.2 (constants.%array_type.ec2)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %w: ref @F.%array_type.loc8_20.2 (%array_type.ec2) = bind_name w, %w.var
-// CHECK:STDOUT:     %impl.elem0.loc8_3.1: @F.%.loc8_3.2 (%.03f) = impl_witness_access constants.%Destroy.lookup_impl_witness.b45, element0 [symbolic = %impl.elem0.loc8_3.2 (constants.%impl.elem0.1ce)]
+// CHECK:STDOUT:     %impl.elem0.loc8_3.1: @F.%.loc8_3.2 (%.895) = impl_witness_access constants.%Destroy.lookup_impl_witness.b45, element0 [symbolic = %impl.elem0.loc8_3.2 (constants.%impl.elem0.90d)]
 // CHECK:STDOUT:     %bound_method.loc8_3.1: <bound method> = bound_method %w.var, %impl.elem0.loc8_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc8_3.1: <specific function> = specific_impl_function %impl.elem0.loc8_3.1, @Destroy.Op(constants.%Destroy.facet.0d3) [symbolic = %specific_impl_fn.loc8_3.2 (constants.%specific_impl_fn.236)]
+// CHECK:STDOUT:     %specific_impl_fn.loc8_3.1: <specific function> = specific_impl_function %impl.elem0.loc8_3.1, @Destroy.Op(constants.%Destroy.facet.d51) [symbolic = %specific_impl_fn.loc8_3.2 (constants.%specific_impl_fn.91b)]
 // CHECK:STDOUT:     %bound_method.loc8_3.2: <bound method> = bound_method %w.var, %specific_impl_fn.loc8_3.1
 // CHECK:STDOUT:     %addr.loc8: @F.%ptr.loc8 (%ptr.1a0) = addr_of %w.var
 // CHECK:STDOUT:     %.loc8_3.1: init %empty_tuple.type = call %bound_method.loc8_3.2(%addr.loc8)
-// CHECK:STDOUT:     %impl.elem0.loc7_3.1: @F.%.loc7_3.2 (%.b85) = impl_witness_access constants.%Destroy.lookup_impl_witness.b34, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0.dc9)]
+// CHECK:STDOUT:     %impl.elem0.loc7_3.1: @F.%.loc7_3.2 (%.259) = impl_witness_access constants.%Destroy.lookup_impl_witness.b34, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0.6c8)]
 // CHECK:STDOUT:     %bound_method.loc7_3.1: <bound method> = bound_method %v.var, %impl.elem0.loc7_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc7_3.1: <specific function> = specific_impl_function %impl.elem0.loc7_3.1, @Destroy.Op(constants.%Destroy.facet.2c9) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn.2a6)]
+// CHECK:STDOUT:     %specific_impl_fn.loc7_3.1: <specific function> = specific_impl_function %impl.elem0.loc7_3.1, @Destroy.Op(constants.%Destroy.facet.603) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn.4ab)]
 // CHECK:STDOUT:     %bound_method.loc7_3.2: <bound method> = bound_method %v.var, %specific_impl_fn.loc7_3.1
 // CHECK:STDOUT:     %addr.loc7: @F.%ptr.loc7 (%ptr.48a) = addr_of %v.var
 // CHECK:STDOUT:     %.loc7_3.1: init %empty_tuple.type = call %bound_method.loc7_3.2(%addr.loc7)
-// CHECK:STDOUT:     %impl.elem0.loc6_3.1: @F.%.loc6_3.2 (%.f5c) = impl_witness_access constants.%Destroy.lookup_impl_witness.a8a, element0 [symbolic = %impl.elem0.loc6_3.2 (constants.%impl.elem0.87c)]
+// CHECK:STDOUT:     %impl.elem0.loc6_3.1: @F.%.loc6_3.2 (%.2aa) = impl_witness_access constants.%Destroy.lookup_impl_witness.a8a, element0 [symbolic = %impl.elem0.loc6_3.2 (constants.%impl.elem0.5e6)]
 // CHECK:STDOUT:     %bound_method.loc6_3.1: <bound method> = bound_method %u.var, %impl.elem0.loc6_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc6_3.1: <specific function> = specific_impl_function %impl.elem0.loc6_3.1, @Destroy.Op(constants.%Destroy.facet.7be) [symbolic = %specific_impl_fn.loc6_3.2 (constants.%specific_impl_fn.4b8)]
+// CHECK:STDOUT:     %specific_impl_fn.loc6_3.1: <specific function> = specific_impl_function %impl.elem0.loc6_3.1, @Destroy.Op(constants.%Destroy.facet.962) [symbolic = %specific_impl_fn.loc6_3.2 (constants.%specific_impl_fn.b17)]
 // CHECK:STDOUT:     %bound_method.loc6_3.2: <bound method> = bound_method %u.var, %specific_impl_fn.loc6_3.1
 // CHECK:STDOUT:     %addr.loc6: @F.%ptr.loc6_3 (%ptr.6cd) = addr_of %u.var
 // CHECK:STDOUT:     %.loc6_3.1: init %empty_tuple.type = call %bound_method.loc6_3.2(%addr.loc6)
@@ -624,46 +624,46 @@ fn G(N:! i32) {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc12_6.1, constants.%Int.as.ImplicitAs.impl.Convert.960 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc12_6.1, constants.%Int.as.ImplicitAs.impl.Convert.87c [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
 // CHECK:STDOUT:   %bound_method.loc14_21.3: <bound method> = bound_method %N.loc12_6.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc14_21.3 (constants.%bound_method)]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2: init Core.IntLiteral = call %bound_method.loc14_21.3(%N.loc12_6.1) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:   %array_type.loc14_22.2: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2, constants.%i32 [symbolic = %array_type.loc14_22.2 (constants.%array_type.c7c)]
-// CHECK:STDOUT:   %require_complete.loc14_22: <witness> = require_complete_type %array_type.loc14_22.2 [symbolic = %require_complete.loc14_22 (constants.%require_complete.7cb)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %array_type.loc14_22.2 [symbolic = %pattern_type (constants.%pattern_type.ccc)]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %array_type.loc14_22.2, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness.4fa)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %array_type.loc14_22.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.ad4)]
-// CHECK:STDOUT:   %.loc14_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc14_3.2 (constants.%.a57)]
-// CHECK:STDOUT:   %impl.elem0.loc14_3.2: @G.%.loc14_3.2 (%.a57) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_3.2 (constants.%impl.elem0.f15)]
-// CHECK:STDOUT:   %specific_impl_fn.loc14_3.2: <specific function> = specific_impl_function %impl.elem0.loc14_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.bae)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %array_type.loc14_22.2 [symbolic = %ptr (constants.%ptr.0ad)]
-// CHECK:STDOUT:   %require_complete.loc14_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc14_3 (constants.%require_complete.7d5)]
+// CHECK:STDOUT:   %array_type.loc14_22.2: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2, constants.%i32 [symbolic = %array_type.loc14_22.2 (constants.%array_type.c44)]
+// CHECK:STDOUT:   %require_complete.loc14_22: <witness> = require_complete_type %array_type.loc14_22.2 [symbolic = %require_complete.loc14_22 (constants.%require_complete.c7e)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %array_type.loc14_22.2 [symbolic = %pattern_type (constants.%pattern_type.9d4)]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %array_type.loc14_22.2, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness.f9d)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %array_type.loc14_22.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.5e0)]
+// CHECK:STDOUT:   %.loc14_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc14_3.2 (constants.%.bf2)]
+// CHECK:STDOUT:   %impl.elem0.loc14_3.2: @G.%.loc14_3.2 (%.bf2) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_3.2 (constants.%impl.elem0.46e)]
+// CHECK:STDOUT:   %specific_impl_fn.loc14_3.2: <specific function> = specific_impl_function %impl.elem0.loc14_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.4c0)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %array_type.loc14_22.2 [symbolic = %ptr (constants.%ptr.bce)]
+// CHECK:STDOUT:   %require_complete.loc14_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc14_3 (constants.%require_complete.1c9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     name_binding_decl {
-// CHECK:STDOUT:       %k.patt: @G.%pattern_type (%pattern_type.ccc) = binding_pattern k [concrete]
-// CHECK:STDOUT:       %k.var_patt: @G.%pattern_type (%pattern_type.ccc) = var_pattern %k.patt [concrete]
+// CHECK:STDOUT:       %k.patt: @G.%pattern_type (%pattern_type.9d4) = binding_pattern k [concrete]
+// CHECK:STDOUT:       %k.var_patt: @G.%pattern_type (%pattern_type.9d4) = var_pattern %k.patt [concrete]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %k.var: ref @G.%array_type.loc14_22.2 (%array_type.c7c) = var %k.var_patt
-// CHECK:STDOUT:     %.loc14_22: type = splice_block %array_type.loc14_22.1 [symbolic = %array_type.loc14_22.2 (constants.%array_type.c7c)] {
+// CHECK:STDOUT:     %k.var: ref @G.%array_type.loc14_22.2 (%array_type.c44) = var %k.var_patt
+// CHECK:STDOUT:     %.loc14_22: type = splice_block %array_type.loc14_22.1 [symbolic = %array_type.loc14_22.2 (constants.%array_type.c44)] {
 // CHECK:STDOUT:       %int_32.loc14: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32.loc14: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:       %N.ref: %i32 = name_ref N, %N.loc12_6.2 [symbolic = %N.loc12_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:       %impl.elem0.loc14_21: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
+// CHECK:STDOUT:       %impl.elem0.loc14_21: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
 // CHECK:STDOUT:       %bound_method.loc14_21.1: <bound method> = bound_method %N.ref, %impl.elem0.loc14_21 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0.loc14_21, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc14_21.2: <bound method> = bound_method %N.ref, %specific_fn [symbolic = %bound_method.loc14_21.3 (constants.%bound_method)]
 // CHECK:STDOUT:       %Int.as.ImplicitAs.impl.Convert.call.loc14_21.1: init Core.IntLiteral = call %bound_method.loc14_21.2(%N.ref) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:       %.loc14_21.1: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc14_21.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:       %.loc14_21.2: Core.IntLiteral = converted %N.ref, %.loc14_21.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc14_21.2 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:       %array_type.loc14_22.1: type = array_type %.loc14_21.2, %i32.loc14 [symbolic = %array_type.loc14_22.2 (constants.%array_type.c7c)]
+// CHECK:STDOUT:       %array_type.loc14_22.1: type = array_type %.loc14_21.2, %i32.loc14 [symbolic = %array_type.loc14_22.2 (constants.%array_type.c44)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %k: ref @G.%array_type.loc14_22.2 (%array_type.c7c) = bind_name k, %k.var
-// CHECK:STDOUT:     %impl.elem0.loc14_3.1: @G.%.loc14_3.2 (%.a57) = impl_witness_access constants.%Destroy.lookup_impl_witness.4fa, element0 [symbolic = %impl.elem0.loc14_3.2 (constants.%impl.elem0.f15)]
+// CHECK:STDOUT:     %k: ref @G.%array_type.loc14_22.2 (%array_type.c44) = bind_name k, %k.var
+// CHECK:STDOUT:     %impl.elem0.loc14_3.1: @G.%.loc14_3.2 (%.bf2) = impl_witness_access constants.%Destroy.lookup_impl_witness.f9d, element0 [symbolic = %impl.elem0.loc14_3.2 (constants.%impl.elem0.46e)]
 // CHECK:STDOUT:     %bound_method.loc14_3.1: <bound method> = bound_method %k.var, %impl.elem0.loc14_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc14_3.1: <specific function> = specific_impl_function %impl.elem0.loc14_3.1, @Destroy.Op(constants.%Destroy.facet.ad4) [symbolic = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.bae)]
+// CHECK:STDOUT:     %specific_impl_fn.loc14_3.1: <specific function> = specific_impl_function %impl.elem0.loc14_3.1, @Destroy.Op(constants.%Destroy.facet.5e0) [symbolic = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.4c0)]
 // CHECK:STDOUT:     %bound_method.loc14_3.2: <bound method> = bound_method %k.var, %specific_impl_fn.loc14_3.1
-// CHECK:STDOUT:     %addr: @G.%ptr (%ptr.0ad) = addr_of %k.var
+// CHECK:STDOUT:     %addr: @G.%ptr (%ptr.bce) = addr_of %k.var
 // CHECK:STDOUT:     %.loc14_3.1: init %empty_tuple.type = call %bound_method.loc14_3.2(%addr)
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
diff --git a/toolchain/check/testdata/facet/access.carbon b/toolchain/check/testdata/facet/access.carbon
index 05623c980bb2..6364e12190ab 100644
--- a/toolchain/check/testdata/facet/access.carbon
+++ b/toolchain/check/testdata/facet/access.carbon
@@ -198,8 +198,8 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.ded: type = fn_type_with_self_type %I.DoIt.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.ded = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.eeb: type = fn_type_with_self_type %I.DoIt.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.eeb = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.DoIt(%I.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -213,8 +213,8 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %T.as_type.loc10_4.2: type = facet_access_type %T.loc8_8.1 [symbolic = %T.as_type.loc10_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_8.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type.loc10_4.2, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc10_4.2: type = fn_type_with_self_type constants.%I.DoIt.type, %I.facet [symbolic = %.loc10_4.2 (constants.%.ded)]
-// CHECK:STDOUT:   %impl.elem0.loc10_4.2: @Use.%.loc10_4.2 (%.ded) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc10_4.2: type = fn_type_with_self_type constants.%I.DoIt.type, %I.facet [symbolic = %.loc10_4.2 (constants.%.eeb)]
+// CHECK:STDOUT:   %impl.elem0.loc10_4.2: @Use.%.loc10_4.2 (%.eeb) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc10_4.2: <specific function> = specific_impl_function %impl.elem0.loc10_4.2, @I.DoIt(%I.facet) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -223,7 +223,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:     %DoIt.ref: %I.assoc_type = name_ref DoIt, @I.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc10_4.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc10_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc10_4.1: type = converted %T.ref, %T.as_type.loc10_4.1 [symbolic = %T.as_type.loc10_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc10_4.1: @Use.%.loc10_4.2 (%.ded) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc10_4.1: @Use.%.loc10_4.2 (%.eeb) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %specific_impl_fn.loc10_4.1: <specific function> = specific_impl_function %impl.elem0.loc10_4.1, @I.DoIt(constants.%I.facet) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %.loc10_10: init %empty_tuple.type = call %specific_impl_fn.loc10_4.1()
 // CHECK:STDOUT:     <elided>
@@ -243,11 +243,11 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.Make.decl [concrete]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de4e4.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.802a41.2: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.44c: type = fn_type_with_self_type %I.Make.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.44c = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.7da: type = fn_type_with_self_type %I.Make.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.7da = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.Make(%I.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -261,8 +261,8 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_8.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type.loc8_18.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc10_11.2: type = fn_type_with_self_type constants.%I.Make.type, %I.facet [symbolic = %.loc10_11.2 (constants.%.44c)]
-// CHECK:STDOUT:   %impl.elem0.loc10_11.2: @Use.%.loc10_11.2 (%.44c) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc10_11.2: type = fn_type_with_self_type constants.%I.Make.type, %I.facet [symbolic = %.loc10_11.2 (constants.%.7da)]
+// CHECK:STDOUT:   %impl.elem0.loc10_11.2: @Use.%.loc10_11.2 (%.7da) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc10_11.2: <specific function> = specific_impl_function %impl.elem0.loc10_11.2, @I.Make(%I.facet) [symbolic = %specific_impl_fn.loc10_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> @Use.%T.as_type.loc8_18.1 (%T.as_type) {
@@ -271,7 +271,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:     %Make.ref: %I.assoc_type = name_ref Make, @I.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc10: type = facet_access_type %T.ref.loc10 [symbolic = %T.as_type.loc8_18.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc10_11.1: type = converted %T.ref.loc10, %T.as_type.loc10 [symbolic = %T.as_type.loc8_18.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc10_11.1: @Use.%.loc10_11.2 (%.44c) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc10_11.1: @Use.%.loc10_11.2 (%.7da) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %specific_impl_fn.loc10_11.1: <specific function> = specific_impl_function %impl.elem0.loc10_11.1, @I.Make(constants.%I.facet) [symbolic = %specific_impl_fn.loc10_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %.loc10_17: init @Use.%T.as_type.loc8_18.1 (%T.as_type) = call %specific_impl_fn.loc10_11.1()
 // CHECK:STDOUT:     %.loc10_18.1: @Use.%T.as_type.loc8_18.1 (%T.as_type) = value_of_initializer %.loc10_17
@@ -283,7 +283,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: specific @Use(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_8.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_18.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de4e4.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802a41.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- access_assoc_method.carbon
@@ -294,16 +294,16 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.Copy.decl [concrete]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de4e4.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.802a41.2: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %Use.type: type = fn_type @Use [concrete]
 // CHECK:STDOUT:   %Use: %Use.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.e3b: type = fn_type_with_self_type %I.Copy.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.e3b = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.0d4: type = fn_type_with_self_type %I.Copy.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.0d4 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.Copy(%I.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -312,11 +312,11 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %Use.decl: %Use.type = fn_decl @Use [concrete = constants.%Use] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @Use.%pattern_type (%pattern_type.6de4e4.2) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @Use.%pattern_type (%pattern_type.6de4e4.2) = value_param_pattern %x.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @Use.%pattern_type (%pattern_type.6de4e4.2) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @Use.%pattern_type (%pattern_type.6de4e4.2) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @Use.%pattern_type (%pattern_type.802a41.2) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @Use.%pattern_type (%pattern_type.802a41.2) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @Use.%pattern_type (%pattern_type.802a41.2) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @Use.%pattern_type (%pattern_type.802a41.2) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc9_24: %I.type = name_ref T, %T.loc9_8.2 [symbolic = %T.loc9_8.1 (constants.%T)]
 // CHECK:STDOUT:     %T.as_type.loc9_24: type = facet_access_type %T.ref.loc9_24 [symbolic = %T.as_type.loc9_18.1 (constants.%T.as_type)]
@@ -341,14 +341,14 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: generic fn @Use(%T.loc9_8.2: %I.type) {
 // CHECK:STDOUT:   %T.loc9_8.1: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_8.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc9_18.1: type = facet_access_type %T.loc9_8.1 [symbolic = %T.as_type.loc9_18.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_18.1 [symbolic = %pattern_type (constants.%pattern_type.6de4e4.2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_18.1 [symbolic = %pattern_type (constants.%pattern_type.802a41.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_18.1 [symbolic = %require_complete (constants.%require_complete)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc9_8.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type.loc9_18.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc10_11.2: type = fn_type_with_self_type constants.%I.Copy.type, %I.facet [symbolic = %.loc10_11.2 (constants.%.e3b)]
-// CHECK:STDOUT:   %impl.elem0.loc10_11.2: @Use.%.loc10_11.2 (%.e3b) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc10_11.2: type = fn_type_with_self_type constants.%I.Copy.type, %I.facet [symbolic = %.loc10_11.2 (constants.%.0d4)]
+// CHECK:STDOUT:   %impl.elem0.loc10_11.2: @Use.%.loc10_11.2 (%.0d4) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc10_11.2: <specific function> = specific_impl_function %impl.elem0.loc10_11.2, @I.Copy(%I.facet) [symbolic = %specific_impl_fn.loc10_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @Use.%T.as_type.loc9_18.1 (%T.as_type)) -> @Use.%T.as_type.loc9_18.1 (%T.as_type) {
@@ -357,7 +357,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:     %Copy.ref: %I.assoc_type = name_ref Copy, @I.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc10: type = facet_access_type constants.%T [symbolic = %T.as_type.loc9_18.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc10_11.1: type = converted constants.%T, %T.as_type.loc10 [symbolic = %T.as_type.loc9_18.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc10_11.1: @Use.%.loc10_11.2 (%.e3b) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc10_11.1: @Use.%.loc10_11.2 (%.0d4) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc10_11: <bound method> = bound_method %x.ref, %impl.elem0.loc10_11.1
 // CHECK:STDOUT:     %specific_impl_fn.loc10_11.1: <specific function> = specific_impl_function %impl.elem0.loc10_11.1, @I.Copy(constants.%I.facet) [symbolic = %specific_impl_fn.loc10_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc10_17: <bound method> = bound_method %x.ref, %specific_impl_fn.loc10_11.1
@@ -371,7 +371,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: specific @Use(constants.%T) {
 // CHECK:STDOUT:   %T.loc9_8.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc9_18.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de4e4.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802a41.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- access_selfless_method.carbon
@@ -384,11 +384,11 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.Hello.decl [concrete]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.e1d: type = fn_type_with_self_type %I.Hello.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.e1d = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.03c: type = fn_type_with_self_type %I.Hello.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.03c = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.Hello(%I.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -402,8 +402,8 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_8.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type.loc8_18.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc10_4.2: type = fn_type_with_self_type constants.%I.Hello.type, %I.facet [symbolic = %.loc10_4.2 (constants.%.e1d)]
-// CHECK:STDOUT:   %impl.elem0.loc10_4.2: @Use.%.loc10_4.2 (%.e1d) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc10_4.2: type = fn_type_with_self_type constants.%I.Hello.type, %I.facet [symbolic = %.loc10_4.2 (constants.%.03c)]
+// CHECK:STDOUT:   %impl.elem0.loc10_4.2: @Use.%.loc10_4.2 (%.03c) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc10_4.2: <specific function> = specific_impl_function %impl.elem0.loc10_4.2, @I.Hello(%I.facet) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @Use.%T.as_type.loc8_18.1 (%T.as_type)) {
@@ -412,7 +412,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:     %Hello.ref: %I.assoc_type = name_ref Hello, @I.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc10: type = facet_access_type constants.%T [symbolic = %T.as_type.loc8_18.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc10_4.1: type = converted constants.%T, %T.as_type.loc10 [symbolic = %T.as_type.loc8_18.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc10_4.1: @Use.%.loc10_4.2 (%.e1d) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc10_4.1: @Use.%.loc10_4.2 (%.03c) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %specific_impl_fn.loc10_4.1: <specific function> = specific_impl_function %impl.elem0.loc10_4.1, @I.Hello(constants.%I.facet) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %.loc10_11: init %empty_tuple.type = call %specific_impl_fn.loc10_4.1()
 // CHECK:STDOUT:     <elided>
@@ -422,7 +422,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: specific @Use(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_8.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_18.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- access_assoc_method_indirect.carbon
@@ -434,11 +434,11 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.Copy.decl [concrete]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de4e4.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.802a41.2: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.e3b: type = fn_type_with_self_type %I.Copy.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.e3b = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.0d4: type = fn_type_with_self_type %I.Copy.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.0d4 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.Copy(%I.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -452,8 +452,8 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_16.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type.loc8_26.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc10_14.2: type = fn_type_with_self_type constants.%I.Copy.type, %I.facet [symbolic = %.loc10_14.2 (constants.%.e3b)]
-// CHECK:STDOUT:   %impl.elem0.loc10_14.2: @UseIndirect.%.loc10_14.2 (%.e3b) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_14.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc10_14.2: type = fn_type_with_self_type constants.%I.Copy.type, %I.facet [symbolic = %.loc10_14.2 (constants.%.0d4)]
+// CHECK:STDOUT:   %impl.elem0.loc10_14.2: @UseIndirect.%.loc10_14.2 (%.0d4) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_14.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc10_14.2: <specific function> = specific_impl_function %impl.elem0.loc10_14.2, @I.Copy(%I.facet) [symbolic = %specific_impl_fn.loc10_14.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @UseIndirect.%T.as_type.loc8_26.1 (%T.as_type)) -> @UseIndirect.%T.as_type.loc8_26.1 (%T.as_type) {
@@ -463,7 +463,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:     %Copy.ref: %I.assoc_type = name_ref Copy, @I.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc10: type = facet_access_type %T.ref.loc10 [symbolic = %T.as_type.loc8_26.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc10_14.1: type = converted %T.ref.loc10, %T.as_type.loc10 [symbolic = %T.as_type.loc8_26.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc10_14.1: @UseIndirect.%.loc10_14.2 (%.e3b) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_14.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc10_14.1: @UseIndirect.%.loc10_14.2 (%.0d4) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_14.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc10_11: <bound method> = bound_method %x.ref, %impl.elem0.loc10_14.1
 // CHECK:STDOUT:     %specific_impl_fn.loc10_14.1: <specific function> = specific_impl_function %impl.elem0.loc10_14.1, @I.Copy(constants.%I.facet) [symbolic = %specific_impl_fn.loc10_14.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc10_21: <bound method> = bound_method %x.ref, %specific_impl_fn.loc10_14.1
@@ -477,7 +477,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: specific @UseIndirect(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_16.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_26.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de4e4.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802a41.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- access_constant_in_self_facet.carbon
@@ -486,16 +486,16 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A [concrete]
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, @A.%X [concrete]
-// CHECK:STDOUT:   %.Self.3ca: %A.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.3ca [symbolic_self]
-// CHECK:STDOUT:   %A.lookup_impl_witness.5ad: <witness> = lookup_impl_witness %.Self.3ca, @A [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness.5ad, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.e6d: %A.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.e6d [symbolic_self]
+// CHECK:STDOUT:   %A.lookup_impl_witness.4c8: <witness> = lookup_impl_witness %.Self.e6d, @A [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness.4c8, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A_where.type: type = facet_type <@A where %impl.elem0 = %empty_tuple.type> [concrete]
 // CHECK:STDOUT:   %AA: %A_where.type = bind_symbolic_name AA, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.c57: type = pattern_type %A_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.52a: type = pattern_type %A_where.type [concrete]
 // CHECK:STDOUT:   %AA.as_type: type = facet_access_type %AA [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness.c50: <witness> = lookup_impl_witness %AA, @A [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness.37a: <witness> = lookup_impl_witness %AA, @A [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
@@ -507,7 +507,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %AA.patt: %pattern_type.c57 = symbolic_binding_pattern AA, 0 [concrete]
+// CHECK:STDOUT:     %AA.patt: %pattern_type.52a = symbolic_binding_pattern AA, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.cb1 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -515,16 +515,16 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:     %X.ref.loc6_33: %A.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %AA.as_type.loc6_33.2: type = facet_access_type %AA.ref [symbolic = %AA.as_type.loc6_33.1 (constants.%AA.as_type)]
 // CHECK:STDOUT:     %.loc6_33: type = converted %AA.ref, %AA.as_type.loc6_33.2 [symbolic = %AA.as_type.loc6_33.1 (constants.%AA.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc6_33: type = impl_witness_access constants.%A.lookup_impl_witness.c50, element0 [concrete = constants.%empty_tuple.type]
+// CHECK:STDOUT:     %impl.elem0.loc6_33: type = impl_witness_access constants.%A.lookup_impl_witness.37a, element0 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %.loc6_13.1: type = splice_block %.loc6_13.2 [concrete = constants.%A_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %A.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.3ca]
+// CHECK:STDOUT:       %.Self.ref: %A.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.e6d]
 // CHECK:STDOUT:       %X.ref.loc6_19: %A.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc6_19: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc6_19: type = impl_witness_access constants.%A.lookup_impl_witness.5ad, element0 [symbolic_self = constants.%impl.elem0]
+// CHECK:STDOUT:       %impl.elem0.loc6_19: type = impl_witness_access constants.%A.lookup_impl_witness.4c8, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:       %.loc6_25.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc6_25.2: type = converted %.loc6_25.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:       %.loc6_13.2: type = where_expr %.Self.2 [concrete = constants.%A_where.type] {
@@ -541,7 +541,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: generic fn @F(%AA.loc6_6.2: %A_where.type) {
 // CHECK:STDOUT:   %AA.loc6_6.1: %A_where.type = bind_symbolic_name AA, 0 [symbolic = %AA.loc6_6.1 (constants.%AA)]
 // CHECK:STDOUT:   %AA.as_type.loc6_33.1: type = facet_access_type %AA.loc6_6.1 [symbolic = %AA.as_type.loc6_33.1 (constants.%AA.as_type)]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %AA.loc6_6.1, @A [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.c50)]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %AA.loc6_6.1, @A [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.37a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -557,7 +557,7 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: specific @F(constants.%AA) {
 // CHECK:STDOUT:   %AA.loc6_6.1 => constants.%AA
 // CHECK:STDOUT:   %AA.as_type.loc6_33.1 => constants.%AA.as_type
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.c50
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.37a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- access_constant_in_self_facet_with_multiple_interfaces.carbon
@@ -570,32 +570,32 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   %B.assoc_type: type = assoc_entity_type @B [concrete]
 // CHECK:STDOUT:   %assoc0.081: %B.assoc_type = assoc_entity element0, @B.%Y [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %A.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.938: type = facet_type <@A & @B> [concrete]
-// CHECK:STDOUT:   %.Self.680: %facet_type.938 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.680 [symbolic_self]
-// CHECK:STDOUT:   %A.lookup_impl_witness.878: <witness> = lookup_impl_witness %.Self.680, @A [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.c9d: type = impl_witness_access %A.lookup_impl_witness.878, element0 [symbolic_self]
-// CHECK:STDOUT:   %B.lookup_impl_witness.a3c: <witness> = lookup_impl_witness %.Self.680, @B [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.7b2: type = impl_witness_access %B.lookup_impl_witness.a3c, element0 [symbolic_self]
+// CHECK:STDOUT:   %facet_type.148: type = facet_type <@A & @B> [concrete]
+// CHECK:STDOUT:   %.Self.a25: %facet_type.148 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.a25 [symbolic_self]
+// CHECK:STDOUT:   %A.lookup_impl_witness.2e7: <witness> = lookup_impl_witness %.Self.a25, @A [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.45b: type = impl_witness_access %A.lookup_impl_witness.2e7, element0 [symbolic_self]
+// CHECK:STDOUT:   %B.lookup_impl_witness.fe8: <witness> = lookup_impl_witness %.Self.a25, @B [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.112: type = impl_witness_access %B.lookup_impl_witness.fe8, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
-// CHECK:STDOUT:   %facet_type.6d1: type = facet_type <@A & @B where %impl.elem0.c9d = %empty_tuple.type and %impl.elem0.7b2 = %empty_struct_type> [concrete]
-// CHECK:STDOUT:   %AB: %facet_type.6d1 = bind_symbolic_name AB, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.bca: type = pattern_type %facet_type.6d1 [concrete]
+// CHECK:STDOUT:   %facet_type.793: type = facet_type <@A & @B where %impl.elem0.45b = %empty_tuple.type and %impl.elem0.112 = %empty_struct_type> [concrete]
+// CHECK:STDOUT:   %AB: %facet_type.793 = bind_symbolic_name AB, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.503: type = pattern_type %facet_type.793 [concrete]
 // CHECK:STDOUT:   %AB.as_type: type = facet_access_type %AB [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness.d31: <witness> = lookup_impl_witness %AB, @A [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness.41f: <witness> = lookup_impl_witness %AB, @A [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
-// CHECK:STDOUT:   %B.lookup_impl_witness.fc8: <witness> = lookup_impl_witness %AB, @B [symbolic]
+// CHECK:STDOUT:   %B.lookup_impl_witness.c73: <witness> = lookup_impl_witness %AB, @B [symbolic]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
@@ -603,105 +603,105 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %AB.patt: %pattern_type.bca = symbolic_binding_pattern AB, 0 [concrete]
+// CHECK:STDOUT:     %AB.patt: %pattern_type.503 = symbolic_binding_pattern AB, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.cb1 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %AB.ref: %facet_type.6d1 = name_ref AB, %AB.loc14_6.2 [symbolic = %AB.loc14_6.1 (constants.%AB)]
+// CHECK:STDOUT:     %AB.ref: %facet_type.793 = name_ref AB, %AB.loc14_6.2 [symbolic = %AB.loc14_6.1 (constants.%AB)]
 // CHECK:STDOUT:     %X.ref.loc14_49: %A.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.752]
 // CHECK:STDOUT:     %AB.as_type.loc14_49.2: type = facet_access_type %AB.ref [symbolic = %AB.as_type.loc14_49.1 (constants.%AB.as_type)]
 // CHECK:STDOUT:     %.loc14_49: type = converted %AB.ref, %AB.as_type.loc14_49.2 [symbolic = %AB.as_type.loc14_49.1 (constants.%AB.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc14_49: type = impl_witness_access constants.%A.lookup_impl_witness.d31, element0 [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %.loc14_17.1: type = splice_block %.loc14_17.2 [concrete = constants.%facet_type.6d1] {
+// CHECK:STDOUT:     %impl.elem0.loc14_49: type = impl_witness_access constants.%A.lookup_impl_witness.41f, element0 [concrete = constants.%empty_tuple.type]
+// CHECK:STDOUT:     %.loc14_17.1: type = splice_block %.loc14_17.2 [concrete = constants.%facet_type.793] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:       %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B.type]
-// CHECK:STDOUT:       %impl.elem0.loc14_13: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %impl.elem0.loc14_13: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:       %bound_method: <bound method> = bound_method %A.ref, %impl.elem0.loc14_13 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%A.ref, %B.ref) [concrete = constants.%facet_type.938]
-// CHECK:STDOUT:       %.loc14_13.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.938]
-// CHECK:STDOUT:       %.loc14_13.2: type = converted %type.as.BitAndWith.impl.Op.call, %.loc14_13.1 [concrete = constants.%facet_type.938]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%A.ref, %B.ref) [concrete = constants.%facet_type.148]
+// CHECK:STDOUT:       %.loc14_13.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.148]
+// CHECK:STDOUT:       %.loc14_13.2: type = converted %type.as.BitAndWith.impl.Op.call, %.loc14_13.1 [concrete = constants.%facet_type.148]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc14_23: %facet_type.938 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.680]
+// CHECK:STDOUT:       %.Self.ref.loc14_23: %facet_type.148 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a25]
 // CHECK:STDOUT:       %X.ref.loc14_23: %A.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.752]
 // CHECK:STDOUT:       %.Self.as_type.loc14_23: type = facet_access_type %.Self.ref.loc14_23 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc14_23: type = converted %.Self.ref.loc14_23, %.Self.as_type.loc14_23 [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc14_23: type = impl_witness_access constants.%A.lookup_impl_witness.878, element0 [symbolic_self = constants.%impl.elem0.c9d]
+// CHECK:STDOUT:       %impl.elem0.loc14_23: type = impl_witness_access constants.%A.lookup_impl_witness.2e7, element0 [symbolic_self = constants.%impl.elem0.45b]
 // CHECK:STDOUT:       %.loc14_29.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc14_29.2: type = converted %.loc14_29.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %.Self.ref.loc14_35: %facet_type.938 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.680]
+// CHECK:STDOUT:       %.Self.ref.loc14_35: %facet_type.148 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a25]
 // CHECK:STDOUT:       %Y.ref: %B.assoc_type = name_ref Y, @Y.%assoc0 [concrete = constants.%assoc0.081]
 // CHECK:STDOUT:       %.Self.as_type.loc14_35: type = facet_access_type %.Self.ref.loc14_35 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc14_35: type = converted %.Self.ref.loc14_35, %.Self.as_type.loc14_35 [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc14_35: type = impl_witness_access constants.%B.lookup_impl_witness.a3c, element0 [symbolic_self = constants.%impl.elem0.7b2]
+// CHECK:STDOUT:       %impl.elem0.loc14_35: type = impl_witness_access constants.%B.lookup_impl_witness.fe8, element0 [symbolic_self = constants.%impl.elem0.112]
 // CHECK:STDOUT:       %.loc14_41.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:       %.loc14_41.2: type = converted %.loc14_41.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:       %.loc14_17.2: type = where_expr %.Self.2 [concrete = constants.%facet_type.6d1] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%facet_type.938
+// CHECK:STDOUT:       %.loc14_17.2: type = where_expr %.Self.2 [concrete = constants.%facet_type.793] {
+// CHECK:STDOUT:         requirement_base_facet_type constants.%facet_type.148
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc14_23, %.loc14_29.2
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc14_35, %.loc14_41.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %AB.loc14_6.2: %facet_type.6d1 = bind_symbolic_name AB, 0 [symbolic = %AB.loc14_6.1 (constants.%AB)]
+// CHECK:STDOUT:     %AB.loc14_6.2: %facet_type.793 = bind_symbolic_name AB, 0 [symbolic = %AB.loc14_6.1 (constants.%AB)]
 // CHECK:STDOUT:     %return.param: ref %empty_tuple.type = out_param call_param0
 // CHECK:STDOUT:     %return: ref %empty_tuple.type = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
-// CHECK:STDOUT:     %AB.patt: %pattern_type.bca = symbolic_binding_pattern AB, 0 [concrete]
+// CHECK:STDOUT:     %AB.patt: %pattern_type.503 = symbolic_binding_pattern AB, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.a96 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.a96 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %AB.ref: %facet_type.6d1 = name_ref AB, %AB.loc18_6.2 [symbolic = %AB.loc18_6.1 (constants.%AB)]
+// CHECK:STDOUT:     %AB.ref: %facet_type.793 = name_ref AB, %AB.loc18_6.2 [symbolic = %AB.loc18_6.1 (constants.%AB)]
 // CHECK:STDOUT:     %Y.ref.loc18_49: %B.assoc_type = name_ref Y, @Y.%assoc0 [concrete = constants.%assoc0.081]
 // CHECK:STDOUT:     %AB.as_type.loc18_49.2: type = facet_access_type %AB.ref [symbolic = %AB.as_type.loc18_49.1 (constants.%AB.as_type)]
 // CHECK:STDOUT:     %.loc18_49: type = converted %AB.ref, %AB.as_type.loc18_49.2 [symbolic = %AB.as_type.loc18_49.1 (constants.%AB.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc18_49: type = impl_witness_access constants.%B.lookup_impl_witness.fc8, element0 [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:     %.loc18_17.1: type = splice_block %.loc18_17.2 [concrete = constants.%facet_type.6d1] {
+// CHECK:STDOUT:     %impl.elem0.loc18_49: type = impl_witness_access constants.%B.lookup_impl_witness.c73, element0 [concrete = constants.%empty_struct_type]
+// CHECK:STDOUT:     %.loc18_17.1: type = splice_block %.loc18_17.2 [concrete = constants.%facet_type.793] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:       %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B.type]
-// CHECK:STDOUT:       %impl.elem0.loc18_13: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %impl.elem0.loc18_13: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:       %bound_method: <bound method> = bound_method %A.ref, %impl.elem0.loc18_13 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%A.ref, %B.ref) [concrete = constants.%facet_type.938]
-// CHECK:STDOUT:       %.loc18_13.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.938]
-// CHECK:STDOUT:       %.loc18_13.2: type = converted %type.as.BitAndWith.impl.Op.call, %.loc18_13.1 [concrete = constants.%facet_type.938]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%A.ref, %B.ref) [concrete = constants.%facet_type.148]
+// CHECK:STDOUT:       %.loc18_13.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.148]
+// CHECK:STDOUT:       %.loc18_13.2: type = converted %type.as.BitAndWith.impl.Op.call, %.loc18_13.1 [concrete = constants.%facet_type.148]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc18_23: %facet_type.938 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.680]
+// CHECK:STDOUT:       %.Self.ref.loc18_23: %facet_type.148 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a25]
 // CHECK:STDOUT:       %X.ref: %A.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.752]
 // CHECK:STDOUT:       %.Self.as_type.loc18_23: type = facet_access_type %.Self.ref.loc18_23 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc18_23: type = converted %.Self.ref.loc18_23, %.Self.as_type.loc18_23 [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc18_23: type = impl_witness_access constants.%A.lookup_impl_witness.878, element0 [symbolic_self = constants.%impl.elem0.c9d]
+// CHECK:STDOUT:       %impl.elem0.loc18_23: type = impl_witness_access constants.%A.lookup_impl_witness.2e7, element0 [symbolic_self = constants.%impl.elem0.45b]
 // CHECK:STDOUT:       %.loc18_29.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc18_29.2: type = converted %.loc18_29.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %.Self.ref.loc18_35: %facet_type.938 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.680]
+// CHECK:STDOUT:       %.Self.ref.loc18_35: %facet_type.148 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a25]
 // CHECK:STDOUT:       %Y.ref.loc18_35: %B.assoc_type = name_ref Y, @Y.%assoc0 [concrete = constants.%assoc0.081]
 // CHECK:STDOUT:       %.Self.as_type.loc18_35: type = facet_access_type %.Self.ref.loc18_35 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc18_35: type = converted %.Self.ref.loc18_35, %.Self.as_type.loc18_35 [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc18_35: type = impl_witness_access constants.%B.lookup_impl_witness.a3c, element0 [symbolic_self = constants.%impl.elem0.7b2]
+// CHECK:STDOUT:       %impl.elem0.loc18_35: type = impl_witness_access constants.%B.lookup_impl_witness.fe8, element0 [symbolic_self = constants.%impl.elem0.112]
 // CHECK:STDOUT:       %.loc18_41.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:       %.loc18_41.2: type = converted %.loc18_41.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:       %.loc18_17.2: type = where_expr %.Self.2 [concrete = constants.%facet_type.6d1] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%facet_type.938
+// CHECK:STDOUT:       %.loc18_17.2: type = where_expr %.Self.2 [concrete = constants.%facet_type.793] {
+// CHECK:STDOUT:         requirement_base_facet_type constants.%facet_type.148
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc18_23, %.loc18_29.2
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc18_35, %.loc18_41.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %AB.loc18_6.2: %facet_type.6d1 = bind_symbolic_name AB, 0 [symbolic = %AB.loc18_6.1 (constants.%AB)]
+// CHECK:STDOUT:     %AB.loc18_6.2: %facet_type.793 = bind_symbolic_name AB, 0 [symbolic = %AB.loc18_6.1 (constants.%AB)]
 // CHECK:STDOUT:     %return.param: ref %empty_struct_type = out_param call_param0
 // CHECK:STDOUT:     %return: ref %empty_struct_type = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @F(%AB.loc14_6.2: %facet_type.6d1) {
-// CHECK:STDOUT:   %AB.loc14_6.1: %facet_type.6d1 = bind_symbolic_name AB, 0 [symbolic = %AB.loc14_6.1 (constants.%AB)]
+// CHECK:STDOUT: generic fn @F(%AB.loc14_6.2: %facet_type.793) {
+// CHECK:STDOUT:   %AB.loc14_6.1: %facet_type.793 = bind_symbolic_name AB, 0 [symbolic = %AB.loc14_6.1 (constants.%AB)]
 // CHECK:STDOUT:   %AB.as_type.loc14_49.1: type = facet_access_type %AB.loc14_6.1 [symbolic = %AB.as_type.loc14_49.1 (constants.%AB.as_type)]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %AB.loc14_6.1, @A [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.d31)]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %AB.loc14_6.1, @A [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.41f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -714,10 +714,10 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @G(%AB.loc18_6.2: %facet_type.6d1) {
-// CHECK:STDOUT:   %AB.loc18_6.1: %facet_type.6d1 = bind_symbolic_name AB, 0 [symbolic = %AB.loc18_6.1 (constants.%AB)]
+// CHECK:STDOUT: generic fn @G(%AB.loc18_6.2: %facet_type.793) {
+// CHECK:STDOUT:   %AB.loc18_6.1: %facet_type.793 = bind_symbolic_name AB, 0 [symbolic = %AB.loc18_6.1 (constants.%AB)]
 // CHECK:STDOUT:   %AB.as_type.loc18_49.1: type = facet_access_type %AB.loc18_6.1 [symbolic = %AB.as_type.loc18_49.1 (constants.%AB.as_type)]
-// CHECK:STDOUT:   %B.lookup_impl_witness: <witness> = lookup_impl_witness %AB.loc18_6.1, @B [symbolic = %B.lookup_impl_witness (constants.%B.lookup_impl_witness.fc8)]
+// CHECK:STDOUT:   %B.lookup_impl_witness: <witness> = lookup_impl_witness %AB.loc18_6.1, @B [symbolic = %B.lookup_impl_witness (constants.%B.lookup_impl_witness.c73)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -733,12 +733,12 @@ fn G(AB:! A & B where .X = () and .Y = {}) -> AB.Y {
 // CHECK:STDOUT: specific @F(constants.%AB) {
 // CHECK:STDOUT:   %AB.loc14_6.1 => constants.%AB
 // CHECK:STDOUT:   %AB.as_type.loc14_49.1 => constants.%AB.as_type
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.d31
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.41f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @G(constants.%AB) {
 // CHECK:STDOUT:   %AB.loc18_6.1 => constants.%AB
 // CHECK:STDOUT:   %AB.as_type.loc18_49.1 => constants.%AB.as_type
-// CHECK:STDOUT:   %B.lookup_impl_witness => constants.%B.lookup_impl_witness.fc8
+// CHECK:STDOUT:   %B.lookup_impl_witness => constants.%B.lookup_impl_witness.c73
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/facet/call_combined_impl_witness.carbon b/toolchain/check/testdata/facet/call_combined_impl_witness.carbon
index 217133bb3512..923d70af7b7c 100644
--- a/toolchain/check/testdata/facet/call_combined_impl_witness.carbon
+++ b/toolchain/check/testdata/facet/call_combined_impl_witness.carbon
@@ -49,16 +49,16 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
-// CHECK:STDOUT:   %Self.193: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b05: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self.31d: %A.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.907: %A.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %A.AA.type: type = fn_type @A.AA [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.AA: %A.AA.type = struct_value () [concrete]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A [concrete]
 // CHECK:STDOUT:   %assoc0.6e7: %A.assoc_type = assoc_entity element0, @A.%A.AA.decl [concrete]
 // CHECK:STDOUT:   %B.type: type = facet_type <@B> [concrete]
-// CHECK:STDOUT:   %Self.783: %B.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.284: %B.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %B.BB.type: type = fn_type @B.BB [concrete]
 // CHECK:STDOUT:   %B.BB: %B.BB.type = struct_value () [concrete]
 // CHECK:STDOUT:   %B.assoc_type: type = assoc_entity_type @B [concrete]
@@ -66,7 +66,7 @@ fn F() {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -77,50 +77,50 @@ fn F() {
 // CHECK:STDOUT:   %A.impl_witness: <witness> = impl_witness file.%A.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.A.impl.AA.type: type = fn_type @C.as.A.impl.AA [concrete]
 // CHECK:STDOUT:   %C.as.A.impl.AA: %C.as.A.impl.AA.type = struct_value () [concrete]
-// CHECK:STDOUT:   %A.facet.66c: %A.type = facet_value %C, (%A.impl_witness) [concrete]
+// CHECK:STDOUT:   %A.facet.030: %A.type = facet_value %C, (%A.impl_witness) [concrete]
 // CHECK:STDOUT:   %B.impl_witness: <witness> = impl_witness file.%B.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.B.impl.BB.type: type = fn_type @C.as.B.impl.BB [concrete]
 // CHECK:STDOUT:   %C.as.B.impl.BB: %C.as.B.impl.BB.type = struct_value () [concrete]
-// CHECK:STDOUT:   %B.facet.82f: %B.type = facet_value %C, (%B.impl_witness) [concrete]
+// CHECK:STDOUT:   %B.facet.e57: %B.type = facet_value %C, (%B.impl_witness) [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.9a5: <bound method> = bound_method %A.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.d5f: type = facet_type <@Empty & @A> [concrete]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.44b: <bound method> = bound_method %facet_type.d5f, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.242: type = facet_type <@Empty & @A & @B> [concrete]
-// CHECK:STDOUT:   %T.2df: %facet_type.242 = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.8e7: type = pattern_type %facet_type.242 [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.2df [symbolic]
-// CHECK:STDOUT:   %pattern_type.9a0: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.bdd: <bound method> = bound_method %A.type, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.5da: type = facet_type <@Empty & @A> [concrete]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.f90: <bound method> = bound_method %facet_type.5da, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.4e3: type = facet_type <@Empty & @A & @B> [concrete]
+// CHECK:STDOUT:   %T.0cd: %facet_type.4e3 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.ae7: type = pattern_type %facet_type.4e3 [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.0cd [symbolic]
+// CHECK:STDOUT:   %pattern_type.b68: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.383: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.2df, @A [symbolic]
-// CHECK:STDOUT:   %A.facet.487: %A.type = facet_value %T.as_type, (%A.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.fde: type = fn_type_with_self_type %A.AA.type, %A.facet.487 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.de2: %.fde = impl_witness_access %A.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.086: <specific function> = specific_impl_function %impl.elem0.de2, @A.AA(%A.facet.487) [symbolic]
-// CHECK:STDOUT:   %B.lookup_impl_witness: <witness> = lookup_impl_witness %T.2df, @B [symbolic]
-// CHECK:STDOUT:   %B.facet.8d1: %B.type = facet_value %T.as_type, (%B.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.368: type = fn_type_with_self_type %B.BB.type, %B.facet.8d1 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.43b: %.368 = impl_witness_access %B.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.573: <specific function> = specific_impl_function %impl.elem0.43b, @B.BB(%B.facet.8d1) [symbolic]
+// CHECK:STDOUT:   %require_complete.f92: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.0cd, @A [symbolic]
+// CHECK:STDOUT:   %A.facet.d79: %A.type = facet_value %T.as_type, (%A.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.b35: type = fn_type_with_self_type %A.AA.type, %A.facet.d79 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.2d3: %.b35 = impl_witness_access %A.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.c16: <specific function> = specific_impl_function %impl.elem0.2d3, @A.AA(%A.facet.d79) [symbolic]
+// CHECK:STDOUT:   %B.lookup_impl_witness: <witness> = lookup_impl_witness %T.0cd, @B [symbolic]
+// CHECK:STDOUT:   %B.facet.01c: %B.type = facet_value %T.as_type, (%B.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.8c6: type = fn_type_with_self_type %B.BB.type, %B.facet.01c [symbolic]
+// CHECK:STDOUT:   %impl.elem0.26a: %.8c6 = impl_witness_access %B.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.ed7: <specific function> = specific_impl_function %impl.elem0.26a, @B.BB(%B.facet.01c) [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %facet_value: %facet_type.242 = facet_value %C, (%Empty.impl_witness, %A.impl_witness, %B.impl_witness) [concrete]
+// CHECK:STDOUT:   %facet_value: %facet_type.4e3 = facet_value %C, (%Empty.impl_witness, %A.impl_witness, %B.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %G.specific_fn: <specific function> = specific_function %G, @G(%facet_value) [concrete]
-// CHECK:STDOUT:   %.7ab: type = fn_type_with_self_type %A.AA.type, %A.facet.66c [concrete]
-// CHECK:STDOUT:   %.b43: type = fn_type_with_self_type %B.BB.type, %B.facet.82f [concrete]
+// CHECK:STDOUT:   %.031: type = fn_type_with_self_type %A.AA.type, %A.facet.030 [concrete]
+// CHECK:STDOUT:   %.0a1: type = fn_type_with_self_type %B.BB.type, %B.facet.e57 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -132,8 +132,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -170,30 +170,30 @@ fn F() {
 // CHECK:STDOUT:   %B.impl_witness_table = impl_witness_table (@C.as.B.impl.%C.as.B.impl.BB.decl), @C.as.B.impl [concrete]
 // CHECK:STDOUT:   %B.impl_witness: <witness> = impl_witness %B.impl_witness_table [concrete = constants.%B.impl_witness]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.8e7 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @G.%pattern_type (%pattern_type.9a0) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @G.%pattern_type (%pattern_type.9a0) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.ae7 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @G.%pattern_type (%pattern_type.b68) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @G.%pattern_type (%pattern_type.b68) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc33_20.1: type = splice_block %.loc33_20.3 [concrete = constants.%facet_type.242] {
+// CHECK:STDOUT:     %.loc33_20.1: type = splice_block %.loc33_20.3 [concrete = constants.%facet_type.4e3] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %A.ref.loc33: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:       %Empty.ref: type = name_ref Empty, file.%Empty.decl [concrete = constants.%Empty.type]
-// CHECK:STDOUT:       %impl.elem0.loc33_12: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method.loc33_12: <bound method> = bound_method %A.ref.loc33, %impl.elem0.loc33_12 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.9a5]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc33_12: init type = call %bound_method.loc33_12(%A.ref.loc33, %Empty.ref) [concrete = constants.%facet_type.d5f]
+// CHECK:STDOUT:       %impl.elem0.loc33_12: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method.loc33_12: <bound method> = bound_method %A.ref.loc33, %impl.elem0.loc33_12 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.bdd]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc33_12: init type = call %bound_method.loc33_12(%A.ref.loc33, %Empty.ref) [concrete = constants.%facet_type.5da]
 // CHECK:STDOUT:       %B.ref.loc33: type = name_ref B, file.%B.decl [concrete = constants.%B.type]
-// CHECK:STDOUT:       %impl.elem0.loc33_20: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method.loc33_20: <bound method> = bound_method %type.as.BitAndWith.impl.Op.call.loc33_12, %impl.elem0.loc33_20 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.44b]
-// CHECK:STDOUT:       %.loc33_12.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc33_12 [concrete = constants.%facet_type.d5f]
-// CHECK:STDOUT:       %.loc33_12.2: type = converted %type.as.BitAndWith.impl.Op.call.loc33_12, %.loc33_12.1 [concrete = constants.%facet_type.d5f]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc33_20: init type = call %bound_method.loc33_20(%.loc33_12.2, %B.ref.loc33) [concrete = constants.%facet_type.242]
-// CHECK:STDOUT:       %.loc33_20.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc33_20 [concrete = constants.%facet_type.242]
-// CHECK:STDOUT:       %.loc33_20.3: type = converted %type.as.BitAndWith.impl.Op.call.loc33_20, %.loc33_20.2 [concrete = constants.%facet_type.242]
+// CHECK:STDOUT:       %impl.elem0.loc33_20: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method.loc33_20: <bound method> = bound_method %type.as.BitAndWith.impl.Op.call.loc33_12, %impl.elem0.loc33_20 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.f90]
+// CHECK:STDOUT:       %.loc33_12.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc33_12 [concrete = constants.%facet_type.5da]
+// CHECK:STDOUT:       %.loc33_12.2: type = converted %type.as.BitAndWith.impl.Op.call.loc33_12, %.loc33_12.1 [concrete = constants.%facet_type.5da]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc33_20: init type = call %bound_method.loc33_20(%.loc33_12.2, %B.ref.loc33) [concrete = constants.%facet_type.4e3]
+// CHECK:STDOUT:       %.loc33_20.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc33_20 [concrete = constants.%facet_type.4e3]
+// CHECK:STDOUT:       %.loc33_20.3: type = converted %type.as.BitAndWith.impl.Op.call.loc33_20, %.loc33_20.2 [concrete = constants.%facet_type.4e3]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc33_6.2: %facet_type.242 = bind_symbolic_name T, 0 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT:     %T.loc33_6.2: %facet_type.4e3 = bind_symbolic_name T, 0 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:     %t.param: @G.%T.as_type.loc33_28.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc33_28.1: type = splice_block %.loc33_28.2 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc33: %facet_type.242 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT:       %T.ref.loc33: %facet_type.4e3 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:       %T.as_type.loc33_28.2: type = facet_access_type %T.ref.loc33 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc33_28.2: type = converted %T.ref.loc33, %T.as_type.loc33_28.2 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -203,7 +203,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Empty {
-// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.193]
+// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b05]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -213,7 +213,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.31d]
+// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.907]
 // CHECK:STDOUT:   %A.AA.decl: %A.AA.type = fn_decl @A.AA [concrete = constants.%A.AA] {} {}
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, %A.AA.decl [concrete = constants.%assoc0.6e7]
 // CHECK:STDOUT:
@@ -225,7 +225,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @B {
-// CHECK:STDOUT:   %Self: %B.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.783]
+// CHECK:STDOUT:   %Self: %B.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.284]
 // CHECK:STDOUT:   %B.BB.decl: %B.BB.type = fn_decl @B.BB [concrete = constants.%B.BB] {} {}
 // CHECK:STDOUT:   %assoc0: %B.assoc_type = assoc_entity element0, %B.BB.decl [concrete = constants.%assoc0.a29]
 // CHECK:STDOUT:
@@ -277,7 +277,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -305,71 +305,71 @@ fn F() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @G(%T.loc33_6.2: %facet_type.242) {
-// CHECK:STDOUT:   %T.loc33_6.1: %facet_type.242 = bind_symbolic_name T, 0 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT: generic fn @G(%T.loc33_6.2: %facet_type.4e3) {
+// CHECK:STDOUT:   %T.loc33_6.1: %facet_type.4e3 = bind_symbolic_name T, 0 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:   %T.as_type.loc33_28.1: type = facet_access_type %T.loc33_6.1 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc33_28.1 [symbolic = %pattern_type (constants.%pattern_type.9a0)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc33_28.1 [symbolic = %pattern_type (constants.%pattern_type.b68)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc33_28.1 [symbolic = %require_complete (constants.%require_complete.383)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc33_28.1 [symbolic = %require_complete (constants.%require_complete.f92)]
 // CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc33_6.1, @A [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness)]
-// CHECK:STDOUT:   %A.facet.loc34: %A.type = facet_value %T.as_type.loc33_28.1, (%A.lookup_impl_witness) [symbolic = %A.facet.loc34 (constants.%A.facet.487)]
-// CHECK:STDOUT:   %.loc34_4.2: type = fn_type_with_self_type constants.%A.AA.type, %A.facet.loc34 [symbolic = %.loc34_4.2 (constants.%.fde)]
-// CHECK:STDOUT:   %impl.elem0.loc34_4.2: @G.%.loc34_4.2 (%.fde) = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.de2)]
-// CHECK:STDOUT:   %specific_impl_fn.loc34_4.2: <specific function> = specific_impl_function %impl.elem0.loc34_4.2, @A.AA(%A.facet.loc34) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.086)]
+// CHECK:STDOUT:   %A.facet.loc34: %A.type = facet_value %T.as_type.loc33_28.1, (%A.lookup_impl_witness) [symbolic = %A.facet.loc34 (constants.%A.facet.d79)]
+// CHECK:STDOUT:   %.loc34_4.2: type = fn_type_with_self_type constants.%A.AA.type, %A.facet.loc34 [symbolic = %.loc34_4.2 (constants.%.b35)]
+// CHECK:STDOUT:   %impl.elem0.loc34_4.2: @G.%.loc34_4.2 (%.b35) = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.2d3)]
+// CHECK:STDOUT:   %specific_impl_fn.loc34_4.2: <specific function> = specific_impl_function %impl.elem0.loc34_4.2, @A.AA(%A.facet.loc34) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.c16)]
 // CHECK:STDOUT:   %B.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc33_6.1, @B [symbolic = %B.lookup_impl_witness (constants.%B.lookup_impl_witness)]
-// CHECK:STDOUT:   %B.facet.loc35: %B.type = facet_value %T.as_type.loc33_28.1, (%B.lookup_impl_witness) [symbolic = %B.facet.loc35 (constants.%B.facet.8d1)]
-// CHECK:STDOUT:   %.loc35_4.2: type = fn_type_with_self_type constants.%B.BB.type, %B.facet.loc35 [symbolic = %.loc35_4.2 (constants.%.368)]
-// CHECK:STDOUT:   %impl.elem0.loc35_4.2: @G.%.loc35_4.2 (%.368) = impl_witness_access %B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.43b)]
-// CHECK:STDOUT:   %specific_impl_fn.loc35_4.2: <specific function> = specific_impl_function %impl.elem0.loc35_4.2, @B.BB(%B.facet.loc35) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.573)]
+// CHECK:STDOUT:   %B.facet.loc35: %B.type = facet_value %T.as_type.loc33_28.1, (%B.lookup_impl_witness) [symbolic = %B.facet.loc35 (constants.%B.facet.01c)]
+// CHECK:STDOUT:   %.loc35_4.2: type = fn_type_with_self_type constants.%B.BB.type, %B.facet.loc35 [symbolic = %.loc35_4.2 (constants.%.8c6)]
+// CHECK:STDOUT:   %impl.elem0.loc35_4.2: @G.%.loc35_4.2 (%.8c6) = impl_witness_access %B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.26a)]
+// CHECK:STDOUT:   %specific_impl_fn.loc35_4.2: <specific function> = specific_impl_function %impl.elem0.loc35_4.2, @B.BB(%B.facet.loc35) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.ed7)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @G.%T.as_type.loc33_28.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref.loc34: @G.%T.as_type.loc33_28.1 (%T.as_type) = name_ref t, %t
 // CHECK:STDOUT:     %AA.ref.loc34: %A.assoc_type = name_ref AA, @A.%assoc0 [concrete = constants.%assoc0.6e7]
-// CHECK:STDOUT:     %T.as_type.loc34: type = facet_access_type constants.%T.2df [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc34_4.1: type = converted constants.%T.2df, %T.as_type.loc34 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc34_4.1: @G.%.loc34_4.2 (%.fde) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.de2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc34_4.1: <specific function> = specific_impl_function %impl.elem0.loc34_4.1, @A.AA(constants.%A.facet.487) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.086)]
+// CHECK:STDOUT:     %T.as_type.loc34: type = facet_access_type constants.%T.0cd [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc34_4.1: type = converted constants.%T.0cd, %T.as_type.loc34 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem0.loc34_4.1: @G.%.loc34_4.2 (%.b35) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.2d3)]
+// CHECK:STDOUT:     %specific_impl_fn.loc34_4.1: <specific function> = specific_impl_function %impl.elem0.loc34_4.1, @A.AA(constants.%A.facet.d79) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.c16)]
 // CHECK:STDOUT:     %.loc34_8: init %empty_tuple.type = call %specific_impl_fn.loc34_4.1()
 // CHECK:STDOUT:     %t.ref.loc35: @G.%T.as_type.loc33_28.1 (%T.as_type) = name_ref t, %t
 // CHECK:STDOUT:     %BB.ref.loc35: %B.assoc_type = name_ref BB, @B.%assoc0 [concrete = constants.%assoc0.a29]
-// CHECK:STDOUT:     %T.as_type.loc35: type = facet_access_type constants.%T.2df [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc35_4.1: type = converted constants.%T.2df, %T.as_type.loc35 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc35_4.1: @G.%.loc35_4.2 (%.368) = impl_witness_access constants.%B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.43b)]
-// CHECK:STDOUT:     %specific_impl_fn.loc35_4.1: <specific function> = specific_impl_function %impl.elem0.loc35_4.1, @B.BB(constants.%B.facet.8d1) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.573)]
+// CHECK:STDOUT:     %T.as_type.loc35: type = facet_access_type constants.%T.0cd [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc35_4.1: type = converted constants.%T.0cd, %T.as_type.loc35 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem0.loc35_4.1: @G.%.loc35_4.2 (%.8c6) = impl_witness_access constants.%B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.26a)]
+// CHECK:STDOUT:     %specific_impl_fn.loc35_4.1: <specific function> = specific_impl_function %impl.elem0.loc35_4.1, @B.BB(constants.%B.facet.01c) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.ed7)]
 // CHECK:STDOUT:     %.loc35_8: init %empty_tuple.type = call %specific_impl_fn.loc35_4.1()
-// CHECK:STDOUT:     %T.ref.loc37: %facet_type.242 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT:     %T.ref.loc37: %facet_type.4e3 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:     %AA.ref.loc37: %A.assoc_type = name_ref AA, @A.%assoc0 [concrete = constants.%assoc0.6e7]
 // CHECK:STDOUT:     %T.as_type.loc37: type = facet_access_type %T.ref.loc37 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc37_4: type = converted %T.ref.loc37, %T.as_type.loc37 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc37: @G.%.loc34_4.2 (%.fde) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.de2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc37: <specific function> = specific_impl_function %impl.elem0.loc37, @A.AA(constants.%A.facet.487) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.086)]
+// CHECK:STDOUT:     %impl.elem0.loc37: @G.%.loc34_4.2 (%.b35) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.2d3)]
+// CHECK:STDOUT:     %specific_impl_fn.loc37: <specific function> = specific_impl_function %impl.elem0.loc37, @A.AA(constants.%A.facet.d79) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.c16)]
 // CHECK:STDOUT:     %.loc37_8: init %empty_tuple.type = call %specific_impl_fn.loc37()
-// CHECK:STDOUT:     %T.ref.loc38: %facet_type.242 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT:     %T.ref.loc38: %facet_type.4e3 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:     %BB.ref.loc38: %B.assoc_type = name_ref BB, @B.%assoc0 [concrete = constants.%assoc0.a29]
 // CHECK:STDOUT:     %T.as_type.loc38: type = facet_access_type %T.ref.loc38 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc38_4: type = converted %T.ref.loc38, %T.as_type.loc38 [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc38: @G.%.loc35_4.2 (%.368) = impl_witness_access constants.%B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.43b)]
-// CHECK:STDOUT:     %specific_impl_fn.loc38: <specific function> = specific_impl_function %impl.elem0.loc38, @B.BB(constants.%B.facet.8d1) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.573)]
+// CHECK:STDOUT:     %impl.elem0.loc38: @G.%.loc35_4.2 (%.8c6) = impl_witness_access constants.%B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.26a)]
+// CHECK:STDOUT:     %specific_impl_fn.loc38: <specific function> = specific_impl_function %impl.elem0.loc38, @B.BB(constants.%B.facet.01c) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.ed7)]
 // CHECK:STDOUT:     %.loc38_8: init %empty_tuple.type = call %specific_impl_fn.loc38()
-// CHECK:STDOUT:     %T.ref.loc40: %facet_type.242 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT:     %T.ref.loc40: %facet_type.4e3 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:     %A.ref.loc40: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:     %AA.ref.loc40: %A.assoc_type = name_ref AA, @A.%assoc0 [concrete = constants.%assoc0.6e7]
-// CHECK:STDOUT:     %T.as_type.loc40: type = facet_access_type constants.%T.2df [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %A.facet.loc40: %A.type = facet_value %T.as_type.loc40, (constants.%A.lookup_impl_witness) [symbolic = %A.facet.loc34 (constants.%A.facet.487)]
-// CHECK:STDOUT:     %.loc40_4: %A.type = converted %T.ref.loc40, %A.facet.loc40 [symbolic = %A.facet.loc34 (constants.%A.facet.487)]
-// CHECK:STDOUT:     %impl.elem0.loc40: @G.%.loc34_4.2 (%.fde) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.de2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc40: <specific function> = specific_impl_function %impl.elem0.loc40, @A.AA(constants.%A.facet.487) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.086)]
+// CHECK:STDOUT:     %T.as_type.loc40: type = facet_access_type constants.%T.0cd [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %A.facet.loc40: %A.type = facet_value %T.as_type.loc40, (constants.%A.lookup_impl_witness) [symbolic = %A.facet.loc34 (constants.%A.facet.d79)]
+// CHECK:STDOUT:     %.loc40_4: %A.type = converted %T.ref.loc40, %A.facet.loc40 [symbolic = %A.facet.loc34 (constants.%A.facet.d79)]
+// CHECK:STDOUT:     %impl.elem0.loc40: @G.%.loc34_4.2 (%.b35) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0.2d3)]
+// CHECK:STDOUT:     %specific_impl_fn.loc40: <specific function> = specific_impl_function %impl.elem0.loc40, @A.AA(constants.%A.facet.d79) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn.c16)]
 // CHECK:STDOUT:     %.loc40_12: init %empty_tuple.type = call %specific_impl_fn.loc40()
-// CHECK:STDOUT:     %T.ref.loc41: %facet_type.242 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.2df)]
+// CHECK:STDOUT:     %T.ref.loc41: %facet_type.4e3 = name_ref T, %T.loc33_6.2 [symbolic = %T.loc33_6.1 (constants.%T.0cd)]
 // CHECK:STDOUT:     %B.ref.loc41: type = name_ref B, file.%B.decl [concrete = constants.%B.type]
 // CHECK:STDOUT:     %BB.ref.loc41: %B.assoc_type = name_ref BB, @B.%assoc0 [concrete = constants.%assoc0.a29]
-// CHECK:STDOUT:     %T.as_type.loc41: type = facet_access_type constants.%T.2df [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %B.facet.loc41: %B.type = facet_value %T.as_type.loc41, (constants.%B.lookup_impl_witness) [symbolic = %B.facet.loc35 (constants.%B.facet.8d1)]
-// CHECK:STDOUT:     %.loc41_4: %B.type = converted %T.ref.loc41, %B.facet.loc41 [symbolic = %B.facet.loc35 (constants.%B.facet.8d1)]
-// CHECK:STDOUT:     %impl.elem0.loc41: @G.%.loc35_4.2 (%.368) = impl_witness_access constants.%B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.43b)]
-// CHECK:STDOUT:     %specific_impl_fn.loc41: <specific function> = specific_impl_function %impl.elem0.loc41, @B.BB(constants.%B.facet.8d1) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.573)]
+// CHECK:STDOUT:     %T.as_type.loc41: type = facet_access_type constants.%T.0cd [symbolic = %T.as_type.loc33_28.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %B.facet.loc41: %B.type = facet_value %T.as_type.loc41, (constants.%B.lookup_impl_witness) [symbolic = %B.facet.loc35 (constants.%B.facet.01c)]
+// CHECK:STDOUT:     %.loc41_4: %B.type = converted %T.ref.loc41, %B.facet.loc41 [symbolic = %B.facet.loc35 (constants.%B.facet.01c)]
+// CHECK:STDOUT:     %impl.elem0.loc41: @G.%.loc35_4.2 (%.8c6) = impl_witness_access constants.%B.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc35_4.2 (constants.%impl.elem0.26a)]
+// CHECK:STDOUT:     %specific_impl_fn.loc41: <specific function> = specific_impl_function %impl.elem0.loc41, @B.BB(constants.%B.facet.01c) [symbolic = %specific_impl_fn.loc35_4.2 (constants.%specific_impl_fn.ed7)]
 // CHECK:STDOUT:     %.loc41_12: init %empty_tuple.type = call %specific_impl_fn.loc41()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -384,10 +384,10 @@ fn F() {
 // CHECK:STDOUT:   %.loc45_6.3: init %C = class_init (), %.loc45_6.2 [concrete = constants.%C.val]
 // CHECK:STDOUT:   %.loc45_6.4: ref %C = temporary %.loc45_6.2, %.loc45_6.3
 // CHECK:STDOUT:   %.loc45_8.1: ref %C = converted %.loc45_6.1, %.loc45_6.4
-// CHECK:STDOUT:   %facet_value.loc45_12.1: %facet_type.242 = facet_value constants.%C, (constants.%Empty.impl_witness, constants.%A.impl_witness, constants.%B.impl_witness) [concrete = constants.%facet_value]
-// CHECK:STDOUT:   %.loc45_12.1: %facet_type.242 = converted constants.%C, %facet_value.loc45_12.1 [concrete = constants.%facet_value]
-// CHECK:STDOUT:   %facet_value.loc45_12.2: %facet_type.242 = facet_value constants.%C, (constants.%Empty.impl_witness, constants.%A.impl_witness, constants.%B.impl_witness) [concrete = constants.%facet_value]
-// CHECK:STDOUT:   %.loc45_12.2: %facet_type.242 = converted constants.%C, %facet_value.loc45_12.2 [concrete = constants.%facet_value]
+// CHECK:STDOUT:   %facet_value.loc45_12.1: %facet_type.4e3 = facet_value constants.%C, (constants.%Empty.impl_witness, constants.%A.impl_witness, constants.%B.impl_witness) [concrete = constants.%facet_value]
+// CHECK:STDOUT:   %.loc45_12.1: %facet_type.4e3 = converted constants.%C, %facet_value.loc45_12.1 [concrete = constants.%facet_value]
+// CHECK:STDOUT:   %facet_value.loc45_12.2: %facet_type.4e3 = facet_value constants.%C, (constants.%Empty.impl_witness, constants.%A.impl_witness, constants.%B.impl_witness) [concrete = constants.%facet_value]
+// CHECK:STDOUT:   %.loc45_12.2: %facet_type.4e3 = converted constants.%C, %facet_value.loc45_12.2 [concrete = constants.%facet_value]
 // CHECK:STDOUT:   %G.specific_fn: <specific function> = specific_function %G.ref, @G(constants.%facet_value) [concrete = constants.%G.specific_fn]
 // CHECK:STDOUT:   %.loc45_8.2: %C = bind_value %.loc45_8.1
 // CHECK:STDOUT:   %G.call: init %empty_tuple.type = call %G.specific_fn(%.loc45_8.2)
@@ -397,23 +397,23 @@ fn F() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.AA(constants.%Self.31d) {}
+// CHECK:STDOUT: specific @A.AA(constants.%Self.907) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @B.BB(constants.%Self.783) {}
+// CHECK:STDOUT: specific @B.BB(constants.%Self.284) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.AA(constants.%A.facet.66c) {}
+// CHECK:STDOUT: specific @A.AA(constants.%A.facet.030) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @B.BB(constants.%B.facet.82f) {}
+// CHECK:STDOUT: specific @B.BB(constants.%B.facet.e57) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @G(constants.%T.2df) {
-// CHECK:STDOUT:   %T.loc33_6.1 => constants.%T.2df
+// CHECK:STDOUT: specific @G(constants.%T.0cd) {
+// CHECK:STDOUT:   %T.loc33_6.1 => constants.%T.0cd
 // CHECK:STDOUT:   %T.as_type.loc33_28.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9a0
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b68
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.AA(constants.%A.facet.487) {}
+// CHECK:STDOUT: specific @A.AA(constants.%A.facet.d79) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @B.BB(constants.%B.facet.8d1) {}
+// CHECK:STDOUT: specific @B.BB(constants.%B.facet.01c) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @G(constants.%facet_value) {
 // CHECK:STDOUT:   %T.loc33_6.1 => constants.%facet_value
@@ -423,13 +423,13 @@ fn F() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
 // CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.impl_witness
-// CHECK:STDOUT:   %A.facet.loc34 => constants.%A.facet.66c
-// CHECK:STDOUT:   %.loc34_4.2 => constants.%.7ab
+// CHECK:STDOUT:   %A.facet.loc34 => constants.%A.facet.030
+// CHECK:STDOUT:   %.loc34_4.2 => constants.%.031
 // CHECK:STDOUT:   %impl.elem0.loc34_4.2 => constants.%C.as.A.impl.AA
 // CHECK:STDOUT:   %specific_impl_fn.loc34_4.2 => constants.%C.as.A.impl.AA
 // CHECK:STDOUT:   %B.lookup_impl_witness => constants.%B.impl_witness
-// CHECK:STDOUT:   %B.facet.loc35 => constants.%B.facet.82f
-// CHECK:STDOUT:   %.loc35_4.2 => constants.%.b43
+// CHECK:STDOUT:   %B.facet.loc35 => constants.%B.facet.e57
+// CHECK:STDOUT:   %.loc35_4.2 => constants.%.0a1
 // CHECK:STDOUT:   %impl.elem0.loc35_4.2 => constants.%C.as.B.impl.BB
 // CHECK:STDOUT:   %specific_impl_fn.loc35_4.2 => constants.%C.as.B.impl.BB
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/facet/convert_class_type_to_facet_type.carbon b/toolchain/check/testdata/facet/convert_class_type_to_facet_type.carbon
index 6234fdb29c40..058f71a18b62 100644
--- a/toolchain/check/testdata/facet/convert_class_type_to_facet_type.carbon
+++ b/toolchain/check/testdata/facet/convert_class_type_to_facet_type.carbon
@@ -27,7 +27,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -42,7 +42,7 @@ fn F() {
 // CHECK:STDOUT:   %Animal.impl_witness: <witness> = impl_witness file.%Animal.impl_witness_table [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %A: %Animal.type = bind_symbolic_name A, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
 // CHECK:STDOUT:   %WalkAnimal.type: type = fn_type @WalkAnimal [concrete]
 // CHECK:STDOUT:   %WalkAnimal: %WalkAnimal.type = struct_value () [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
@@ -78,7 +78,7 @@ fn F() {
 // CHECK:STDOUT:   %Animal.impl_witness_table = impl_witness_table (), @Goat.as.Animal.impl [concrete]
 // CHECK:STDOUT:   %Animal.impl_witness: <witness> = impl_witness %Animal.impl_witness_table [concrete = constants.%Animal.impl_witness]
 // CHECK:STDOUT:   %WalkAnimal.decl: %WalkAnimal.type = fn_decl @WalkAnimal [concrete = constants.%WalkAnimal] {
-// CHECK:STDOUT:     %A.patt: %pattern_type.3b0 = symbolic_binding_pattern A, 0 [concrete]
+// CHECK:STDOUT:     %A.patt: %pattern_type.bd6 = symbolic_binding_pattern A, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc20: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -90,7 +90,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/facet/convert_class_type_to_generic_facet_value.carbon b/toolchain/check/testdata/facet/convert_class_type_to_generic_facet_value.carbon
index 22cf898c9f3b..50848407a7b0 100644
--- a/toolchain/check/testdata/facet/convert_class_type_to_generic_facet_value.carbon
+++ b/toolchain/check/testdata/facet/convert_class_type_to_generic_facet_value.carbon
@@ -71,8 +71,8 @@ fn G() {
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.91ccba.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
-// CHECK:STDOUT:   %Self.dee8d8.1: %Generic.type.91ccba.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
+// CHECK:STDOUT:   %Self.f48852.1: %Generic.type.4045f4.1 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f439a9.1: type = fn_type @Generic.F, @Generic(%Scalar) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2d67.1: %Generic.F.type.f439a9.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd877.1: type = assoc_entity_type @Generic, @Generic(%Scalar) [symbolic]
@@ -80,7 +80,7 @@ fn G() {
 // CHECK:STDOUT:   %GenericParam: type = class_type @GenericParam [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.884: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e7: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.f73: type = ptr_type %GenericParam [concrete]
 // CHECK:STDOUT:   %pattern_type.7c3: type = pattern_type %ptr.f73 [concrete]
 // CHECK:STDOUT:   %GenericParam.as.Destroy.impl.Op.type: type = fn_type @GenericParam.as.Destroy.impl.Op [concrete]
@@ -88,13 +88,13 @@ fn G() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ImplsGeneric: type = class_type @ImplsGeneric [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9ca: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.813: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.011: type = ptr_type %ImplsGeneric [concrete]
 // CHECK:STDOUT:   %pattern_type.2db: type = pattern_type %ptr.011 [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op.type: type = fn_type @ImplsGeneric.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op: %ImplsGeneric.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.769: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
-// CHECK:STDOUT:   %Self.f84: %Generic.type.769 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.cfe: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
+// CHECK:STDOUT:   %Self.b8f: %Generic.type.cfe = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.4cf: type = fn_type @Generic.F, @Generic(%GenericParam) [concrete]
 // CHECK:STDOUT:   %Generic.F.118: %Generic.F.type.4cf = struct_value () [concrete]
 // CHECK:STDOUT:   %Generic.assoc_type.713: type = assoc_entity_type @Generic, @Generic(%GenericParam) [concrete]
@@ -102,25 +102,25 @@ fn G() {
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness file.%Generic.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F.type: type = fn_type @ImplsGeneric.as.Generic.impl.F [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F: %ImplsGeneric.as.Generic.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Generic.type.91ccba.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
-// CHECK:STDOUT:   %U: %Generic.type.91ccba.2 = bind_symbolic_name U, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.80f: type = pattern_type %Generic.type.91ccba.2 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
+// CHECK:STDOUT:   %U: %Generic.type.4045f4.2 = bind_symbolic_name U, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.3c6: type = pattern_type %Generic.type.4045f4.2 [symbolic]
 // CHECK:STDOUT:   %CallGenericMethod.type: type = fn_type @CallGenericMethod [concrete]
 // CHECK:STDOUT:   %CallGenericMethod: %CallGenericMethod.type = struct_value () [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %pattern_type.ded: type = pattern_type %Generic.type.769 [concrete]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn.2ff: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet) [concrete]
+// CHECK:STDOUT:   %pattern_type.bd9: type = pattern_type %Generic.type.cfe [concrete]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn.e96: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet) [concrete]
 // CHECK:STDOUT:   %PassThroughToGenericMethod.type: type = fn_type @PassThroughToGenericMethod [concrete]
 // CHECK:STDOUT:   %PassThroughToGenericMethod: %PassThroughToGenericMethod.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.dee8d8.2: %Generic.type.91ccba.2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.f48852.2: %Generic.type.4045f4.2 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f439a9.2: type = fn_type @Generic.F, @Generic(%T) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2d67.2: %Generic.F.type.f439a9.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd877.2: type = assoc_entity_type @Generic, @Generic(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.2966cb.2: %Generic.assoc_type.0fd877.2 = assoc_entity element0, @Generic.%Generic.F.decl [symbolic]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn.a24: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%T, %U) [symbolic]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn.588: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%T, %U) [symbolic]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [concrete]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %PassThroughToGenericMethod.specific_fn: <specific function> = specific_function %PassThroughToGenericMethod, @PassThroughToGenericMethod(%GenericParam, %Generic.facet) [concrete]
@@ -159,38 +159,38 @@ fn G() {
 // CHECK:STDOUT:     %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:     %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:     %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
-// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.769]
+// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.cfe]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Generic.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Generic.impl.%ImplsGeneric.as.Generic.impl.F.decl), @ImplsGeneric.as.Generic.impl [concrete]
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness %Generic.impl_witness_table [concrete = constants.%Generic.impl_witness]
 // CHECK:STDOUT:   %CallGenericMethod.decl: %CallGenericMethod.type = fn_decl @CallGenericMethod [concrete = constants.%CallGenericMethod] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type (%pattern_type.80f) = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type (%pattern_type.3c6) = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc15_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc15: type = splice_block %Generic.type.loc15_45.2 [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)] {
+// CHECK:STDOUT:     %.loc15: type = splice_block %Generic.type.loc15_45.2 [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %T.ref: type = name_ref T, %T.loc15_22.2 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:       %Generic.type.loc15_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)]
+// CHECK:STDOUT:       %Generic.type.loc15_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
 // CHECK:STDOUT:   %PassThroughToGenericMethod.decl: %PassThroughToGenericMethod.type = fn_decl @PassThroughToGenericMethod [concrete = constants.%PassThroughToGenericMethod] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @PassThroughToGenericMethod.%pattern_type (%pattern_type.80f) = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %U.patt: @PassThroughToGenericMethod.%pattern_type (%pattern_type.3c6) = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc21_31.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc21_31.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc21: type = splice_block %Generic.type.loc21_54.2 [symbolic = %Generic.type.loc21_54.1 (constants.%Generic.type.91ccba.2)] {
+// CHECK:STDOUT:     %.loc21: type = splice_block %Generic.type.loc21_54.2 [symbolic = %Generic.type.loc21_54.1 (constants.%Generic.type.4045f4.2)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %T.ref.loc21: type = name_ref T, %T.loc21_31.2 [symbolic = %T.loc21_31.1 (constants.%T)]
-// CHECK:STDOUT:       %Generic.type.loc21_54.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc21_54.1 (constants.%Generic.type.91ccba.2)]
+// CHECK:STDOUT:       %Generic.type.loc21_54.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc21_54.1 (constants.%Generic.type.4045f4.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc21_41.2: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc21_41.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc21_41.2: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc21_41.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %H.decl: %H.type = fn_decl @H [concrete = constants.%H] {} {}
 // CHECK:STDOUT: }
@@ -199,15 +199,15 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1: type = bind_symbolic_name Scalar, 0 [symbolic = %Scalar.loc4_19.1 (constants.%Scalar)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.91ccba.1)]
-// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee8d8.1)]
+// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.4045f4.1)]
+// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48852.1)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%Scalar.loc4_19.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f439a9.1)]
 // CHECK:STDOUT:   %Generic.F: @Generic.%Generic.F.type (%Generic.F.type.f439a9.1) = struct_value () [symbolic = %Generic.F (constants.%Generic.F.8a2d67.1)]
 // CHECK:STDOUT:   %Generic.assoc_type: type = assoc_entity_type @Generic, @Generic(%Scalar.loc4_19.1) [symbolic = %Generic.assoc_type (constants.%Generic.assoc_type.0fd877.1)]
 // CHECK:STDOUT:   %assoc0.loc5_9.2: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd877.1) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0.2966cb.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee8d8.1)]
+// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48852.1)]
 // CHECK:STDOUT:     %Generic.F.decl: @Generic.%Generic.F.type (%Generic.F.type.f439a9.1) = fn_decl @Generic.F [symbolic = @Generic.%Generic.F (constants.%Generic.F.8a2d67.1)] {} {}
 // CHECK:STDOUT:     %assoc0.loc5_9.1: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd877.1) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0.2966cb.1)]
 // CHECK:STDOUT:
@@ -262,7 +262,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%GenericParam [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   impl_decl @GenericParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@GenericParam.as.Destroy.impl.%GenericParam.as.Destroy.impl.Op.decl), @GenericParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.884]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -274,7 +274,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ImplsGeneric [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:   impl_decl @ImplsGeneric.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Destroy.impl.%ImplsGeneric.as.Destroy.impl.Op.decl), @ImplsGeneric.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9ca]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.813]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -282,7 +282,7 @@ fn G() {
 // CHECK:STDOUT:   .Self = constants.%ImplsGeneric
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc4_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1)) {
+// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc4_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1)) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -295,11 +295,11 @@ fn G() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc15_22.2: type, %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2)) {
+// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc15_22.2: type, %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2)) {
 // CHECK:STDOUT:   %T.loc15_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:   %Generic.type.loc15_45.1: type = facet_type <@Generic, @Generic(%T.loc15_22.1)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)]
-// CHECK:STDOUT:   %U.loc15_32.1: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc15_45.1 [symbolic = %pattern_type (constants.%pattern_type.80f)]
+// CHECK:STDOUT:   %Generic.type.loc15_45.1: type = facet_type <@Generic, @Generic(%T.loc15_22.1)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)]
+// CHECK:STDOUT:   %U.loc15_32.1: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc15_45.1 [symbolic = %pattern_type (constants.%pattern_type.3c6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -314,28 +314,28 @@ fn G() {
 // CHECK:STDOUT:   %CallGenericMethod.ref: %CallGenericMethod.type = name_ref CallGenericMethod, file.%CallGenericMethod.decl [concrete = constants.%CallGenericMethod]
 // CHECK:STDOUT:   %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet]
-// CHECK:STDOUT:   %.loc18: %Generic.type.769 = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet) [concrete = constants.%CallGenericMethod.specific_fn.2ff]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet]
+// CHECK:STDOUT:   %.loc18: %Generic.type.cfe = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet) [concrete = constants.%CallGenericMethod.specific_fn.e96]
 // CHECK:STDOUT:   %CallGenericMethod.call: init %empty_tuple.type = call %CallGenericMethod.specific_fn()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @PassThroughToGenericMethod(%T.loc21_31.2: type, %U.loc21_41.2: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.91ccba.2)) {
+// CHECK:STDOUT: generic fn @PassThroughToGenericMethod(%T.loc21_31.2: type, %U.loc21_41.2: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.4045f4.2)) {
 // CHECK:STDOUT:   %T.loc21_31.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc21_31.1 (constants.%T)]
-// CHECK:STDOUT:   %Generic.type.loc21_54.1: type = facet_type <@Generic, @Generic(%T.loc21_31.1)> [symbolic = %Generic.type.loc21_54.1 (constants.%Generic.type.91ccba.2)]
-// CHECK:STDOUT:   %U.loc21_41.1: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc21_41.1 (constants.%U)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc21_54.1 [symbolic = %pattern_type (constants.%pattern_type.80f)]
+// CHECK:STDOUT:   %Generic.type.loc21_54.1: type = facet_type <@Generic, @Generic(%T.loc21_31.1)> [symbolic = %Generic.type.loc21_54.1 (constants.%Generic.type.4045f4.2)]
+// CHECK:STDOUT:   %U.loc21_41.1: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc21_41.1 (constants.%U)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc21_54.1 [symbolic = %pattern_type (constants.%pattern_type.3c6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn.loc22_3.2: <specific function> = specific_function constants.%CallGenericMethod, @CallGenericMethod(%T.loc21_31.1, %U.loc21_41.1) [symbolic = %CallGenericMethod.specific_fn.loc22_3.2 (constants.%CallGenericMethod.specific_fn.a24)]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn.loc22_3.2: <specific function> = specific_function constants.%CallGenericMethod, @CallGenericMethod(%T.loc21_31.1, %U.loc21_41.1) [symbolic = %CallGenericMethod.specific_fn.loc22_3.2 (constants.%CallGenericMethod.specific_fn.588)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %CallGenericMethod.ref: %CallGenericMethod.type = name_ref CallGenericMethod, file.%CallGenericMethod.decl [concrete = constants.%CallGenericMethod]
 // CHECK:STDOUT:     %T.ref.loc22: type = name_ref T, %T.loc21_31.2 [symbolic = %T.loc21_31.1 (constants.%T)]
-// CHECK:STDOUT:     %U.ref: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.91ccba.2) = name_ref U, %U.loc21_41.2 [symbolic = %U.loc21_41.1 (constants.%U)]
-// CHECK:STDOUT:     %CallGenericMethod.specific_fn.loc22_3.1: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%T, constants.%U) [symbolic = %CallGenericMethod.specific_fn.loc22_3.2 (constants.%CallGenericMethod.specific_fn.a24)]
+// CHECK:STDOUT:     %U.ref: @PassThroughToGenericMethod.%Generic.type.loc21_54.1 (%Generic.type.4045f4.2) = name_ref U, %U.loc21_41.2 [symbolic = %U.loc21_41.1 (constants.%U)]
+// CHECK:STDOUT:     %CallGenericMethod.specific_fn.loc22_3.1: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%T, constants.%U) [symbolic = %CallGenericMethod.specific_fn.loc22_3.2 (constants.%CallGenericMethod.specific_fn.588)]
 // CHECK:STDOUT:     %CallGenericMethod.call: init %empty_tuple.type = call %CallGenericMethod.specific_fn.loc22_3.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -346,8 +346,8 @@ fn G() {
 // CHECK:STDOUT:   %PassThroughToGenericMethod.ref: %PassThroughToGenericMethod.type = name_ref PassThroughToGenericMethod, file.%PassThroughToGenericMethod.decl [concrete = constants.%PassThroughToGenericMethod]
 // CHECK:STDOUT:   %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet]
-// CHECK:STDOUT:   %.loc26: %Generic.type.769 = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet]
+// CHECK:STDOUT:   %.loc26: %Generic.type.cfe = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet]
 // CHECK:STDOUT:   %PassThroughToGenericMethod.specific_fn: <specific function> = specific_function %PassThroughToGenericMethod.ref, @PassThroughToGenericMethod(constants.%GenericParam, constants.%Generic.facet) [concrete = constants.%PassThroughToGenericMethod.specific_fn]
 // CHECK:STDOUT:   %PassThroughToGenericMethod.call: init %empty_tuple.type = call %PassThroughToGenericMethod.specific_fn()
 // CHECK:STDOUT:   return
@@ -357,14 +357,14 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%Scalar
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.dee8d8.1) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.f48852.1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%GenericParam) {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%GenericParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.769
-// CHECK:STDOUT:   %Self.2 => constants.%Self.f84
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b8f
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.118
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
@@ -377,8 +377,8 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.91ccba.2
-// CHECK:STDOUT:   %Self.2 => constants.%Self.dee8d8.2
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.4045f4.2
+// CHECK:STDOUT:   %Self.2 => constants.%Self.f48852.2
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.f439a9.2
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.8a2d67.2
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.0fd877.2
@@ -387,37 +387,37 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%T, constants.%U) {
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%T
-// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.91ccba.2
+// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.4045f4.2
 // CHECK:STDOUT:   %U.loc15_32.1 => constants.%U
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.80f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3c6
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet) {
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%GenericParam
-// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.769
+// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.cfe
 // CHECK:STDOUT:   %U.loc15_32.1 => constants.%Generic.facet
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ded
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.bd9
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @PassThroughToGenericMethod(constants.%T, constants.%U) {
 // CHECK:STDOUT:   %T.loc21_31.1 => constants.%T
-// CHECK:STDOUT:   %Generic.type.loc21_54.1 => constants.%Generic.type.91ccba.2
+// CHECK:STDOUT:   %Generic.type.loc21_54.1 => constants.%Generic.type.4045f4.2
 // CHECK:STDOUT:   %U.loc21_41.1 => constants.%U
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.80f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3c6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @PassThroughToGenericMethod(constants.%GenericParam, constants.%Generic.facet) {
 // CHECK:STDOUT:   %T.loc21_31.1 => constants.%GenericParam
-// CHECK:STDOUT:   %Generic.type.loc21_54.1 => constants.%Generic.type.769
+// CHECK:STDOUT:   %Generic.type.loc21_54.1 => constants.%Generic.type.cfe
 // CHECK:STDOUT:   %U.loc21_41.1 => constants.%Generic.facet
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ded
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.bd9
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn.loc22_3.2 => constants.%CallGenericMethod.specific_fn.2ff
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn.loc22_3.2 => constants.%CallGenericMethod.specific_fn.e96
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- generic_facet_type_from_implicit_param.carbon
@@ -429,8 +429,8 @@ fn G() {
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.91ccba.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
-// CHECK:STDOUT:   %Self.dee: %Generic.type.91ccba.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
+// CHECK:STDOUT:   %Self.f48: %Generic.type.4045f4.1 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f43: type = fn_type @Generic.F, @Generic(%Scalar) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2: %Generic.F.type.f43 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd: type = assoc_entity_type @Generic, @Generic(%Scalar) [symbolic]
@@ -438,7 +438,7 @@ fn G() {
 // CHECK:STDOUT:   %GenericParam: type = class_type @GenericParam [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.884: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e7: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.f73: type = ptr_type %GenericParam [concrete]
 // CHECK:STDOUT:   %pattern_type.7c3: type = pattern_type %ptr.f73 [concrete]
 // CHECK:STDOUT:   %GenericParam.as.Destroy.impl.Op.type: type = fn_type @GenericParam.as.Destroy.impl.Op [concrete]
@@ -446,13 +446,13 @@ fn G() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ImplsGeneric: type = class_type @ImplsGeneric [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9ca: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.813: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.011: type = ptr_type %ImplsGeneric [concrete]
 // CHECK:STDOUT:   %pattern_type.2db: type = pattern_type %ptr.011 [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op.type: type = fn_type @ImplsGeneric.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op: %ImplsGeneric.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.769: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
-// CHECK:STDOUT:   %Self.f84: %Generic.type.769 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.cfe: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
+// CHECK:STDOUT:   %Self.b8f: %Generic.type.cfe = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.4cf: type = fn_type @Generic.F, @Generic(%GenericParam) [concrete]
 // CHECK:STDOUT:   %Generic.F.118: %Generic.F.type.4cf = struct_value () [concrete]
 // CHECK:STDOUT:   %Generic.assoc_type.713: type = assoc_entity_type @Generic, @Generic(%GenericParam) [concrete]
@@ -460,11 +460,11 @@ fn G() {
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness file.%Generic.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F.type: type = fn_type @ImplsGeneric.as.Generic.impl.F [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F: %ImplsGeneric.as.Generic.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Generic.type.91ccba.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
-// CHECK:STDOUT:   %U: %Generic.type.91ccba.2 = bind_symbolic_name U, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.80f: type = pattern_type %Generic.type.91ccba.2 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
+// CHECK:STDOUT:   %U: %Generic.type.4045f4.2 = bind_symbolic_name U, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.3c6: type = pattern_type %Generic.type.4045f4.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %CallGenericMethod.type: type = fn_type @CallGenericMethod [concrete]
 // CHECK:STDOUT:   %CallGenericMethod: %CallGenericMethod.type = struct_value () [concrete]
@@ -472,7 +472,7 @@ fn G() {
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %GenericParam.val: %GenericParam = struct_value () [concrete]
-// CHECK:STDOUT:   %pattern_type.ded: type = pattern_type %Generic.type.769 [concrete]
+// CHECK:STDOUT:   %pattern_type.bd9: type = pattern_type %Generic.type.cfe [concrete]
 // CHECK:STDOUT:   %pattern_type.589: type = pattern_type %GenericParam [concrete]
 // CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet) [concrete]
 // CHECK:STDOUT: }
@@ -508,25 +508,25 @@ fn G() {
 // CHECK:STDOUT:     %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:     %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:     %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
-// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.769]
+// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.cfe]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Generic.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Generic.impl.%ImplsGeneric.as.Generic.impl.F.decl), @ImplsGeneric.as.Generic.impl [concrete]
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness %Generic.impl_witness_table [concrete = constants.%Generic.impl_witness]
 // CHECK:STDOUT:   %CallGenericMethod.decl: %CallGenericMethod.type = fn_decl @CallGenericMethod [concrete = constants.%CallGenericMethod] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type.loc15_32 (%pattern_type.80f) = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type.loc15_32 (%pattern_type.3c6) = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:     %t.patt: @CallGenericMethod.%pattern_type.loc15_48 (%pattern_type.7dc) = binding_pattern t [concrete]
 // CHECK:STDOUT:     %t.param_patt: @CallGenericMethod.%pattern_type.loc15_48 (%pattern_type.7dc) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc15_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc15: type = splice_block %Generic.type.loc15_45.2 [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)] {
+// CHECK:STDOUT:     %.loc15: type = splice_block %Generic.type.loc15_45.2 [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %T.ref.loc15_44: type = name_ref T, %T.loc15_22.2 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:       %Generic.type.loc15_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)]
+// CHECK:STDOUT:       %Generic.type.loc15_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
 // CHECK:STDOUT:     %t.param: @CallGenericMethod.%T.loc15_22.1 (%T) = value_param call_param0
 // CHECK:STDOUT:     %T.ref.loc15_51: type = name_ref T, %T.loc15_22.2 [symbolic = %T.loc15_22.1 (constants.%T)]
 // CHECK:STDOUT:     %t: @CallGenericMethod.%T.loc15_22.1 (%T) = bind_name t, %t.param
@@ -538,15 +538,15 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1: type = bind_symbolic_name Scalar, 0 [symbolic = %Scalar.loc4_19.1 (constants.%Scalar)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.91ccba.1)]
-// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee)]
+// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.4045f4.1)]
+// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%Scalar.loc4_19.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f43)]
 // CHECK:STDOUT:   %Generic.F: @Generic.%Generic.F.type (%Generic.F.type.f43) = struct_value () [symbolic = %Generic.F (constants.%Generic.F.8a2)]
 // CHECK:STDOUT:   %Generic.assoc_type: type = assoc_entity_type @Generic, @Generic(%Scalar.loc4_19.1) [symbolic = %Generic.assoc_type (constants.%Generic.assoc_type.0fd)]
 // CHECK:STDOUT:   %assoc0.loc5_9.2: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0.296)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee)]
+// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48)]
 // CHECK:STDOUT:     %Generic.F.decl: @Generic.%Generic.F.type (%Generic.F.type.f43) = fn_decl @Generic.F [symbolic = @Generic.%Generic.F (constants.%Generic.F.8a2)] {} {}
 // CHECK:STDOUT:     %assoc0.loc5_9.1: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0.296)]
 // CHECK:STDOUT:
@@ -601,7 +601,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%GenericParam [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   impl_decl @GenericParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@GenericParam.as.Destroy.impl.%GenericParam.as.Destroy.impl.Op.decl), @GenericParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.884]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -613,7 +613,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ImplsGeneric [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:   impl_decl @ImplsGeneric.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Destroy.impl.%ImplsGeneric.as.Destroy.impl.Op.decl), @ImplsGeneric.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9ca]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.813]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -621,7 +621,7 @@ fn G() {
 // CHECK:STDOUT:   .Self = constants.%ImplsGeneric
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc4_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1)) {
+// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc4_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1)) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -634,11 +634,11 @@ fn G() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc15_22.2: type, %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2)) {
+// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc15_22.2: type, %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2)) {
 // CHECK:STDOUT:   %T.loc15_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:   %Generic.type.loc15_45.1: type = facet_type <@Generic, @Generic(%T.loc15_22.1)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)]
-// CHECK:STDOUT:   %U.loc15_32.1: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
-// CHECK:STDOUT:   %pattern_type.loc15_32: type = pattern_type %Generic.type.loc15_45.1 [symbolic = %pattern_type.loc15_32 (constants.%pattern_type.80f)]
+// CHECK:STDOUT:   %Generic.type.loc15_45.1: type = facet_type <@Generic, @Generic(%T.loc15_22.1)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)]
+// CHECK:STDOUT:   %U.loc15_32.1: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:   %pattern_type.loc15_32: type = pattern_type %Generic.type.loc15_45.1 [symbolic = %pattern_type.loc15_32 (constants.%pattern_type.3c6)]
 // CHECK:STDOUT:   %pattern_type.loc15_48: type = pattern_type %T.loc15_22.1 [symbolic = %pattern_type.loc15_48 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -660,8 +660,8 @@ fn G() {
 // CHECK:STDOUT:   %.loc18_36.3: init %GenericParam = class_init (), %.loc18_36.2 [concrete = constants.%GenericParam.val]
 // CHECK:STDOUT:   %.loc18_36.4: ref %GenericParam = temporary %.loc18_36.2, %.loc18_36.3
 // CHECK:STDOUT:   %.loc18_38.1: ref %GenericParam = converted %.loc18_36.1, %.loc18_36.4
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet]
-// CHECK:STDOUT:   %.loc18_53: %Generic.type.769 = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet]
+// CHECK:STDOUT:   %.loc18_53: %Generic.type.cfe = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet]
 // CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet) [concrete = constants.%CallGenericMethod.specific_fn]
 // CHECK:STDOUT:   %.loc18_38.2: %GenericParam = bind_value %.loc18_38.1
 // CHECK:STDOUT:   %CallGenericMethod.call: init %empty_tuple.type = call %CallGenericMethod.specific_fn(%.loc18_38.2)
@@ -675,14 +675,14 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%Scalar
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.dee) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.f48) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%GenericParam) {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%GenericParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.769
-// CHECK:STDOUT:   %Self.2 => constants.%Self.f84
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b8f
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.118
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
@@ -697,17 +697,17 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%T, constants.%U) {
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%T
-// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.91ccba.2
+// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.4045f4.2
 // CHECK:STDOUT:   %U.loc15_32.1 => constants.%U
-// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.80f
+// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.3c6
 // CHECK:STDOUT:   %pattern_type.loc15_48 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet) {
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%GenericParam
-// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.769
+// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.cfe
 // CHECK:STDOUT:   %U.loc15_32.1 => constants.%Generic.facet
-// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.ded
+// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.bd9
 // CHECK:STDOUT:   %pattern_type.loc15_48 => constants.%pattern_type.589
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
diff --git a/toolchain/check/testdata/facet/convert_class_value_to_facet_value_value.carbon b/toolchain/check/testdata/facet/convert_class_value_to_facet_value_value.carbon
index fbe183620337..dc89caea1d08 100644
--- a/toolchain/check/testdata/facet/convert_class_value_to_facet_value_value.carbon
+++ b/toolchain/check/testdata/facet/convert_class_value_to_facet_value_value.carbon
@@ -27,20 +27,20 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %T.fd4: %Animal.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.fd4 [symbolic]
-// CHECK:STDOUT:   %pattern_type.36a: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %T.a8c: %Animal.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.a8c [symbolic]
+// CHECK:STDOUT:   %pattern_type.28a: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %WalkAnimal.type: type = fn_type @WalkAnimal [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %WalkAnimal: %WalkAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.234: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.29e: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.943: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.96e: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.940: type = ptr_type %Goat [concrete]
 // CHECK:STDOUT:   %pattern_type.396: type = pattern_type %ptr.940 [concrete]
 // CHECK:STDOUT:   %Goat.as.Destroy.impl.Op.type: type = fn_type @Goat.as.Destroy.impl.Op [concrete]
@@ -76,18 +76,18 @@ fn F() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %WalkAnimal.decl: %WalkAnimal.type = fn_decl @WalkAnimal [concrete = constants.%WalkAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @WalkAnimal.%pattern_type (%pattern_type.36a) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @WalkAnimal.%pattern_type (%pattern_type.36a) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: @WalkAnimal.%pattern_type (%pattern_type.28a) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @WalkAnimal.%pattern_type (%pattern_type.28a) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc17_19: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc17_15.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.fd4)]
+// CHECK:STDOUT:     %T.loc17_15.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.a8c)]
 // CHECK:STDOUT:     %a.param: @WalkAnimal.%T.as_type.loc17_30.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc17_30.1: type = splice_block %.loc17_30.2 [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc17_15.2 [symbolic = %T.loc17_15.1 (constants.%T.fd4)]
+// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc17_15.2 [symbolic = %T.loc17_15.1 (constants.%T.a8c)]
 // CHECK:STDOUT:       %T.as_type.loc17_30.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc17_30.2: type = converted %T.ref, %T.as_type.loc17_30.2 [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -104,7 +104,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -136,7 +136,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Goat [concrete = constants.%Goat]
 // CHECK:STDOUT:   impl_decl @Goat.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Goat.as.Destroy.impl.%Goat.as.Destroy.impl.Op.decl), @Goat.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.943]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.96e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -145,12 +145,12 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @WalkAnimal(%T.loc17_15.2: %Animal.type) {
-// CHECK:STDOUT:   %T.loc17_15.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.fd4)]
+// CHECK:STDOUT:   %T.loc17_15.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.a8c)]
 // CHECK:STDOUT:   %T.as_type.loc17_30.1: type = facet_access_type %T.loc17_15.1 [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc17_30.1 [symbolic = %pattern_type (constants.%pattern_type.36a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc17_30.1 [symbolic = %pattern_type (constants.%pattern_type.28a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc17_30.1 [symbolic = %require_complete (constants.%require_complete.234)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc17_30.1 [symbolic = %require_complete (constants.%require_complete.29e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @WalkAnimal.%T.as_type.loc17_30.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -182,10 +182,10 @@ fn F() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @WalkAnimal(constants.%T.fd4) {
-// CHECK:STDOUT:   %T.loc17_15.1 => constants.%T.fd4
+// CHECK:STDOUT: specific @WalkAnimal(constants.%T.a8c) {
+// CHECK:STDOUT:   %T.loc17_15.1 => constants.%T.a8c
 // CHECK:STDOUT:   %T.as_type.loc17_30.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.36a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @WalkAnimal(constants.%Animal.facet) {
diff --git a/toolchain/check/testdata/facet/convert_class_value_to_generic_facet_value_value.carbon b/toolchain/check/testdata/facet/convert_class_value_to_generic_facet_value_value.carbon
index 978a7ce92066..41860a0ceeee 100644
--- a/toolchain/check/testdata/facet/convert_class_value_to_generic_facet_value_value.carbon
+++ b/toolchain/check/testdata/facet/convert_class_value_to_generic_facet_value_value.carbon
@@ -103,8 +103,8 @@ fn B() {
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.91ccba.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
-// CHECK:STDOUT:   %Self.dee8d8.1: %Generic.type.91ccba.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
+// CHECK:STDOUT:   %Self.f48852.1: %Generic.type.4045f4.1 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f439a9.1: type = fn_type @Generic.F, @Generic(%Scalar) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2d67.1: %Generic.F.type.f439a9.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd877.1: type = assoc_entity_type @Generic, @Generic(%Scalar) [symbolic]
@@ -112,7 +112,7 @@ fn B() {
 // CHECK:STDOUT:   %GenericParam: type = class_type @GenericParam [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.884: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e7: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.f73: type = ptr_type %GenericParam [concrete]
 // CHECK:STDOUT:   %pattern_type.7c3: type = pattern_type %ptr.f73 [concrete]
 // CHECK:STDOUT:   %GenericParam.as.Destroy.impl.Op.type: type = fn_type @GenericParam.as.Destroy.impl.Op [concrete]
@@ -120,13 +120,13 @@ fn B() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ImplsGeneric: type = class_type @ImplsGeneric [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9ca: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.813: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.011: type = ptr_type %ImplsGeneric [concrete]
 // CHECK:STDOUT:   %pattern_type.2db: type = pattern_type %ptr.011 [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op.type: type = fn_type @ImplsGeneric.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op: %ImplsGeneric.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.769: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
-// CHECK:STDOUT:   %Self.f84: %Generic.type.769 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.cfe: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
+// CHECK:STDOUT:   %Self.b8f: %Generic.type.cfe = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.4cf: type = fn_type @Generic.F, @Generic(%GenericParam) [concrete]
 // CHECK:STDOUT:   %Generic.F.118: %Generic.F.type.4cf = struct_value () [concrete]
 // CHECK:STDOUT:   %Generic.assoc_type.713: type = assoc_entity_type @Generic, @Generic(%GenericParam) [concrete]
@@ -134,39 +134,39 @@ fn B() {
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness file.%Generic.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F.type: type = fn_type @ImplsGeneric.as.Generic.impl.F [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F: %ImplsGeneric.as.Generic.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.facet.8ff: %Generic.type.769 = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
+// CHECK:STDOUT:   %Generic.facet.924: %Generic.type.cfe = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Generic.type.91ccba.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
-// CHECK:STDOUT:   %U: %Generic.type.91ccba.2 = bind_symbolic_name U, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.80f: type = pattern_type %Generic.type.91ccba.2 [symbolic]
-// CHECK:STDOUT:   %Self.dee8d8.2: %Generic.type.91ccba.2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
+// CHECK:STDOUT:   %U: %Generic.type.4045f4.2 = bind_symbolic_name U, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.3c6: type = pattern_type %Generic.type.4045f4.2 [symbolic]
+// CHECK:STDOUT:   %Self.f48852.2: %Generic.type.4045f4.2 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f439a9.2: type = fn_type @Generic.F, @Generic(%T) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2d67.2: %Generic.F.type.f439a9.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd877.2: type = assoc_entity_type @Generic, @Generic(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.2966cb.2: %Generic.assoc_type.0fd877.2 = assoc_entity element0, @Generic.%Generic.F.decl [symbolic]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
-// CHECK:STDOUT:   %pattern_type.f48: type = pattern_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.9a5: type = pattern_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %CallGenericMethod.type: type = fn_type @CallGenericMethod [concrete]
 // CHECK:STDOUT:   %CallGenericMethod: %CallGenericMethod.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.7b2: <witness> = require_complete_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.a66: <witness> = require_complete_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
-// CHECK:STDOUT:   %require_complete.02a: <witness> = require_complete_type %Generic.type.91ccba.2 [symbolic]
+// CHECK:STDOUT:   %require_complete.b10: <witness> = require_complete_type %Generic.type.4045f4.2 [symbolic]
 // CHECK:STDOUT:   %Generic.lookup_impl_witness: <witness> = lookup_impl_witness %U, @Generic, @Generic(%T) [symbolic]
-// CHECK:STDOUT:   %Generic.facet.680: %Generic.type.91ccba.2 = facet_value %U.as_type, (%Generic.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.177: type = fn_type_with_self_type %Generic.F.type.f439a9.2, %Generic.facet.680 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.177 = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Generic.F(%T, %Generic.facet.680) [symbolic]
+// CHECK:STDOUT:   %Generic.facet.049: %Generic.type.4045f4.2 = facet_value %U.as_type, (%Generic.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.1bd: type = fn_type_with_self_type %Generic.F.type.f439a9.2, %Generic.facet.049 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.1bd = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Generic.F(%T, %Generic.facet.049) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.val: %ImplsGeneric = struct_value () [concrete]
 // CHECK:STDOUT:   %GenericParam.val: %GenericParam = struct_value () [concrete]
-// CHECK:STDOUT:   %pattern_type.ded: type = pattern_type %Generic.type.769 [concrete]
+// CHECK:STDOUT:   %pattern_type.bd9: type = pattern_type %Generic.type.cfe [concrete]
 // CHECK:STDOUT:   %pattern_type.c8d: type = pattern_type %ImplsGeneric [concrete]
 // CHECK:STDOUT:   %pattern_type.589: type = pattern_type %GenericParam [concrete]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet.8ff) [concrete]
-// CHECK:STDOUT:   %complete_type.997: <witness> = complete_type_witness %Generic.type.769 [concrete]
-// CHECK:STDOUT:   %.3e6: type = fn_type_with_self_type %Generic.F.type.4cf, %Generic.facet.8ff [concrete]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet.924) [concrete]
+// CHECK:STDOUT:   %complete_type.10d: <witness> = complete_type_witness %Generic.type.cfe [concrete]
+// CHECK:STDOUT:   %.e21: type = fn_type_with_self_type %Generic.F.type.4cf, %Generic.facet.924 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -200,30 +200,30 @@ fn B() {
 // CHECK:STDOUT:     %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:     %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:     %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
-// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.769]
+// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.cfe]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Generic.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Generic.impl.%ImplsGeneric.as.Generic.impl.F.decl), @ImplsGeneric.as.Generic.impl [concrete]
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness %Generic.impl_witness_table [concrete = constants.%Generic.impl_witness]
 // CHECK:STDOUT:   %CallGenericMethod.decl: %CallGenericMethod.type = fn_decl @CallGenericMethod [concrete = constants.%CallGenericMethod] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type.loc15_32 (%pattern_type.80f) = symbolic_binding_pattern U, 1 [concrete]
-// CHECK:STDOUT:     %a.patt: @CallGenericMethod.%pattern_type.loc15_48 (%pattern_type.f48) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @CallGenericMethod.%pattern_type.loc15_48 (%pattern_type.f48) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type.loc15_32 (%pattern_type.3c6) = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %a.patt: @CallGenericMethod.%pattern_type.loc15_48 (%pattern_type.9a5) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @CallGenericMethod.%pattern_type.loc15_48 (%pattern_type.9a5) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %s.patt: @CallGenericMethod.%pattern_type.loc15_54 (%pattern_type.7dc) = binding_pattern s [concrete]
 // CHECK:STDOUT:     %s.param_patt: @CallGenericMethod.%pattern_type.loc15_54 (%pattern_type.7dc) = value_param_pattern %s.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc15_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc15_45: type = splice_block %Generic.type.loc15_45.2 [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)] {
+// CHECK:STDOUT:     %.loc15_45: type = splice_block %Generic.type.loc15_45.2 [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %T.ref.loc15_44: type = name_ref T, %T.loc15_22.2 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:       %Generic.type.loc15_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)]
+// CHECK:STDOUT:       %Generic.type.loc15_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
 // CHECK:STDOUT:     %a.param: @CallGenericMethod.%U.as_type.loc15_51.1 (%U.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc15_51.1: type = splice_block %.loc15_51.2 [symbolic = %U.as_type.loc15_51.1 (constants.%U.as_type)] {
-// CHECK:STDOUT:       %U.ref.loc15: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = name_ref U, %U.loc15_32.2 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:       %U.ref.loc15: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = name_ref U, %U.loc15_32.2 [symbolic = %U.loc15_32.1 (constants.%U)]
 // CHECK:STDOUT:       %U.as_type.loc15_51.2: type = facet_access_type %U.ref.loc15 [symbolic = %U.as_type.loc15_51.1 (constants.%U.as_type)]
 // CHECK:STDOUT:       %.loc15_51.2: type = converted %U.ref.loc15, %U.as_type.loc15_51.2 [symbolic = %U.as_type.loc15_51.1 (constants.%U.as_type)]
 // CHECK:STDOUT:     }
@@ -239,15 +239,15 @@ fn B() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1: type = bind_symbolic_name Scalar, 0 [symbolic = %Scalar.loc4_19.1 (constants.%Scalar)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.91ccba.1)]
-// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee8d8.1)]
+// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.4045f4.1)]
+// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48852.1)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%Scalar.loc4_19.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f439a9.1)]
 // CHECK:STDOUT:   %Generic.F: @Generic.%Generic.F.type (%Generic.F.type.f439a9.1) = struct_value () [symbolic = %Generic.F (constants.%Generic.F.8a2d67.1)]
 // CHECK:STDOUT:   %Generic.assoc_type: type = assoc_entity_type @Generic, @Generic(%Scalar.loc4_19.1) [symbolic = %Generic.assoc_type (constants.%Generic.assoc_type.0fd877.1)]
 // CHECK:STDOUT:   %assoc0.loc5_9.2: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd877.1) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0.2966cb.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee8d8.1)]
+// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48852.1)]
 // CHECK:STDOUT:     %Generic.F.decl: @Generic.%Generic.F.type (%Generic.F.type.f439a9.1) = fn_decl @Generic.F [symbolic = @Generic.%Generic.F (constants.%Generic.F.8a2d67.1)] {} {}
 // CHECK:STDOUT:     %assoc0.loc5_9.1: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd877.1) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0.2966cb.1)]
 // CHECK:STDOUT:
@@ -302,7 +302,7 @@ fn B() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%GenericParam [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   impl_decl @GenericParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@GenericParam.as.Destroy.impl.%GenericParam.as.Destroy.impl.Op.decl), @GenericParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.884]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -314,7 +314,7 @@ fn B() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ImplsGeneric [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:   impl_decl @ImplsGeneric.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Destroy.impl.%ImplsGeneric.as.Destroy.impl.Op.decl), @ImplsGeneric.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9ca]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.813]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -322,7 +322,7 @@ fn B() {
 // CHECK:STDOUT:   .Self = constants.%ImplsGeneric
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc4_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1)) {
+// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc4_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1)) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -335,37 +335,37 @@ fn B() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc15_22.2: type, %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2)) {
+// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc15_22.2: type, %U.loc15_32.2: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2)) {
 // CHECK:STDOUT:   %T.loc15_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
-// CHECK:STDOUT:   %Generic.type.loc15_45.1: type = facet_type <@Generic, @Generic(%T.loc15_22.1)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.91ccba.2)]
-// CHECK:STDOUT:   %U.loc15_32.1: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
-// CHECK:STDOUT:   %pattern_type.loc15_32: type = pattern_type %Generic.type.loc15_45.1 [symbolic = %pattern_type.loc15_32 (constants.%pattern_type.80f)]
+// CHECK:STDOUT:   %Generic.type.loc15_45.1: type = facet_type <@Generic, @Generic(%T.loc15_22.1)> [symbolic = %Generic.type.loc15_45.1 (constants.%Generic.type.4045f4.2)]
+// CHECK:STDOUT:   %U.loc15_32.1: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:   %pattern_type.loc15_32: type = pattern_type %Generic.type.loc15_45.1 [symbolic = %pattern_type.loc15_32 (constants.%pattern_type.3c6)]
 // CHECK:STDOUT:   %U.as_type.loc15_51.1: type = facet_access_type %U.loc15_32.1 [symbolic = %U.as_type.loc15_51.1 (constants.%U.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc15_48: type = pattern_type %U.as_type.loc15_51.1 [symbolic = %pattern_type.loc15_48 (constants.%pattern_type.f48)]
+// CHECK:STDOUT:   %pattern_type.loc15_48: type = pattern_type %U.as_type.loc15_51.1 [symbolic = %pattern_type.loc15_48 (constants.%pattern_type.9a5)]
 // CHECK:STDOUT:   %pattern_type.loc15_54: type = pattern_type %T.loc15_22.1 [symbolic = %pattern_type.loc15_54 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc15_49: <witness> = require_complete_type %U.as_type.loc15_51.1 [symbolic = %require_complete.loc15_49 (constants.%require_complete.7b2)]
+// CHECK:STDOUT:   %require_complete.loc15_49: <witness> = require_complete_type %U.as_type.loc15_51.1 [symbolic = %require_complete.loc15_49 (constants.%require_complete.a66)]
 // CHECK:STDOUT:   %require_complete.loc15_55: <witness> = require_complete_type %T.loc15_22.1 [symbolic = %require_complete.loc15_55 (constants.%require_complete.4ae)]
-// CHECK:STDOUT:   %require_complete.loc16: <witness> = require_complete_type %Generic.type.loc15_45.1 [symbolic = %require_complete.loc16 (constants.%require_complete.02a)]
+// CHECK:STDOUT:   %require_complete.loc16: <witness> = require_complete_type %Generic.type.loc15_45.1 [symbolic = %require_complete.loc16 (constants.%require_complete.b10)]
 // CHECK:STDOUT:   %Generic.assoc_type: type = assoc_entity_type @Generic, @Generic(%T.loc15_22.1) [symbolic = %Generic.assoc_type (constants.%Generic.assoc_type.0fd877.2)]
 // CHECK:STDOUT:   %assoc0: @CallGenericMethod.%Generic.assoc_type (%Generic.assoc_type.0fd877.2) = assoc_entity element0, @Generic.%Generic.F.decl [symbolic = %assoc0 (constants.%assoc0.2966cb.2)]
 // CHECK:STDOUT:   %Generic.lookup_impl_witness: <witness> = lookup_impl_witness %U.loc15_32.1, @Generic, @Generic(%T.loc15_22.1) [symbolic = %Generic.lookup_impl_witness (constants.%Generic.lookup_impl_witness)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%T.loc15_22.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f439a9.2)]
-// CHECK:STDOUT:   %Generic.facet: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = facet_value %U.as_type.loc15_51.1, (%Generic.lookup_impl_witness) [symbolic = %Generic.facet (constants.%Generic.facet.680)]
-// CHECK:STDOUT:   %.loc16_4.3: type = fn_type_with_self_type %Generic.F.type, %Generic.facet [symbolic = %.loc16_4.3 (constants.%.177)]
-// CHECK:STDOUT:   %impl.elem0.loc16_4.2: @CallGenericMethod.%.loc16_4.3 (%.177) = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Generic.facet: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = facet_value %U.as_type.loc15_51.1, (%Generic.lookup_impl_witness) [symbolic = %Generic.facet (constants.%Generic.facet.049)]
+// CHECK:STDOUT:   %.loc16_4.3: type = fn_type_with_self_type %Generic.F.type, %Generic.facet [symbolic = %.loc16_4.3 (constants.%.1bd)]
+// CHECK:STDOUT:   %impl.elem0.loc16_4.2: @CallGenericMethod.%.loc16_4.3 (%.1bd) = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc16_4.2: <specific function> = specific_impl_function %impl.elem0.loc16_4.2, @Generic.F(%T.loc15_22.1, %Generic.facet) [symbolic = %specific_impl_fn.loc16_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @CallGenericMethod.%U.as_type.loc15_51.1 (%U.as_type), %s.param: @CallGenericMethod.%T.loc15_22.1 (%T)) {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %U.ref.loc16: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.91ccba.2) = name_ref U, %U.loc15_32.2 [symbolic = %U.loc15_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.ref.loc16: @CallGenericMethod.%Generic.type.loc15_45.1 (%Generic.type.4045f4.2) = name_ref U, %U.loc15_32.2 [symbolic = %U.loc15_32.1 (constants.%U)]
 // CHECK:STDOUT:     %.loc16_4.1: @CallGenericMethod.%Generic.assoc_type (%Generic.assoc_type.0fd877.2) = specific_constant @Generic.%assoc0.loc5_9.1, @Generic(constants.%T) [symbolic = %assoc0 (constants.%assoc0.2966cb.2)]
 // CHECK:STDOUT:     %F.ref: @CallGenericMethod.%Generic.assoc_type (%Generic.assoc_type.0fd877.2) = name_ref F, %.loc16_4.1 [symbolic = %assoc0 (constants.%assoc0.2966cb.2)]
 // CHECK:STDOUT:     %U.as_type.loc16: type = facet_access_type %U.ref.loc16 [symbolic = %U.as_type.loc15_51.1 (constants.%U.as_type)]
 // CHECK:STDOUT:     %.loc16_4.2: type = converted %U.ref.loc16, %U.as_type.loc16 [symbolic = %U.as_type.loc15_51.1 (constants.%U.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc16_4.1: @CallGenericMethod.%.loc16_4.3 (%.177) = impl_witness_access constants.%Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_4.2 (constants.%impl.elem0)]
-// CHECK:STDOUT:     %specific_impl_fn.loc16_4.1: <specific function> = specific_impl_function %impl.elem0.loc16_4.1, @Generic.F(constants.%T, constants.%Generic.facet.680) [symbolic = %specific_impl_fn.loc16_4.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %impl.elem0.loc16_4.1: @CallGenericMethod.%.loc16_4.3 (%.1bd) = impl_witness_access constants.%Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %specific_impl_fn.loc16_4.1: <specific function> = specific_impl_function %impl.elem0.loc16_4.1, @Generic.F(constants.%T, constants.%Generic.facet.049) [symbolic = %specific_impl_fn.loc16_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %.loc16_7: init %empty_tuple.type = call %specific_impl_fn.loc16_4.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -386,9 +386,9 @@ fn B() {
 // CHECK:STDOUT:   %.loc20_42.3: init %GenericParam = class_init (), %.loc20_42.2 [concrete = constants.%GenericParam.val]
 // CHECK:STDOUT:   %.loc20_42.4: ref %GenericParam = temporary %.loc20_42.2, %.loc20_42.3
 // CHECK:STDOUT:   %.loc20_44.1: ref %GenericParam = converted %.loc20_42.1, %.loc20_42.4
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet.8ff]
-// CHECK:STDOUT:   %.loc20_59: %Generic.type.769 = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet.8ff]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.8ff) [concrete = constants.%CallGenericMethod.specific_fn]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet.924]
+// CHECK:STDOUT:   %.loc20_59: %Generic.type.cfe = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet.924]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.924) [concrete = constants.%CallGenericMethod.specific_fn]
 // CHECK:STDOUT:   %.loc20_24.2: %ImplsGeneric = bind_value %.loc20_24.1
 // CHECK:STDOUT:   %.loc20_44.2: %GenericParam = bind_value %.loc20_44.1
 // CHECK:STDOUT:   %CallGenericMethod.call: init %empty_tuple.type = call %CallGenericMethod.specific_fn(%.loc20_24.2, %.loc20_44.2)
@@ -405,28 +405,28 @@ fn B() {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%Scalar
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.dee8d8.1) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.f48852.1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%GenericParam) {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%GenericParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.769
-// CHECK:STDOUT:   %Self.2 => constants.%Self.f84
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b8f
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.118
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
 // CHECK:STDOUT:   %assoc0.loc5_9.2 => constants.%assoc0.9b7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%GenericParam, constants.%Generic.facet.8ff) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%GenericParam, constants.%Generic.facet.924) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%T) {
 // CHECK:STDOUT:   %Scalar.loc4_19.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.91ccba.2
-// CHECK:STDOUT:   %Self.2 => constants.%Self.dee8d8.2
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.4045f4.2
+// CHECK:STDOUT:   %Self.2 => constants.%Self.f48852.2
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.f439a9.2
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.8a2d67.2
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.0fd877.2
@@ -435,21 +435,21 @@ fn B() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%T, constants.%U) {
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%T
-// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.91ccba.2
+// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.4045f4.2
 // CHECK:STDOUT:   %U.loc15_32.1 => constants.%U
-// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.80f
+// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.3c6
 // CHECK:STDOUT:   %U.as_type.loc15_51.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type.loc15_48 => constants.%pattern_type.f48
+// CHECK:STDOUT:   %pattern_type.loc15_48 => constants.%pattern_type.9a5
 // CHECK:STDOUT:   %pattern_type.loc15_54 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%T, constants.%Generic.facet.680) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%T, constants.%Generic.facet.049) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.8ff) {
+// CHECK:STDOUT: specific @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.924) {
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%GenericParam
-// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.769
-// CHECK:STDOUT:   %U.loc15_32.1 => constants.%Generic.facet.8ff
-// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.ded
+// CHECK:STDOUT:   %Generic.type.loc15_45.1 => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %U.loc15_32.1 => constants.%Generic.facet.924
+// CHECK:STDOUT:   %pattern_type.loc15_32 => constants.%pattern_type.bd9
 // CHECK:STDOUT:   %U.as_type.loc15_51.1 => constants.%ImplsGeneric
 // CHECK:STDOUT:   %pattern_type.loc15_48 => constants.%pattern_type.c8d
 // CHECK:STDOUT:   %pattern_type.loc15_54 => constants.%pattern_type.589
@@ -457,13 +457,13 @@ fn B() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc15_49 => constants.%complete_type.357
 // CHECK:STDOUT:   %require_complete.loc15_55 => constants.%complete_type.357
-// CHECK:STDOUT:   %require_complete.loc16 => constants.%complete_type.997
+// CHECK:STDOUT:   %require_complete.loc16 => constants.%complete_type.10d
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.9b7
 // CHECK:STDOUT:   %Generic.lookup_impl_witness => constants.%Generic.impl_witness
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
-// CHECK:STDOUT:   %Generic.facet => constants.%Generic.facet.8ff
-// CHECK:STDOUT:   %.loc16_4.3 => constants.%.3e6
+// CHECK:STDOUT:   %Generic.facet => constants.%Generic.facet.924
+// CHECK:STDOUT:   %.loc16_4.3 => constants.%.e21
 // CHECK:STDOUT:   %impl.elem0.loc16_4.2 => constants.%ImplsGeneric.as.Generic.impl.F
 // CHECK:STDOUT:   %specific_impl_fn.loc16_4.2 => constants.%ImplsGeneric.as.Generic.impl.F
 // CHECK:STDOUT: }
@@ -478,12 +478,12 @@ fn B() {
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.f76: type = facet_type <@I, @I(%V, %W)> [symbolic]
-// CHECK:STDOUT:   %Self.770: %I.type.f76 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %I.type.5dd: type = facet_type <@I, @I(%V, %W)> [symbolic]
+// CHECK:STDOUT:   %Self.e09: %I.type.5dd = bind_symbolic_name Self, 2 [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -491,25 +491,25 @@ fn B() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %I.type.bea: type = facet_type <@I, @I(%T.8b3, %empty_tuple.type)> [symbolic]
-// CHECK:STDOUT:   %Self.ec5: %I.type.bea = bind_symbolic_name Self, 2 [symbolic]
-// CHECK:STDOUT:   %require_complete.5ce: <witness> = require_complete_type %I.type.bea [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.989: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %I.type.202: type = facet_type <@I, @I(%empty_struct_type, %empty_tuple.type)> [concrete]
-// CHECK:STDOUT:   %T.e96: %I.type.202 = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a84: type = pattern_type %I.type.202 [concrete]
-// CHECK:STDOUT:   %Self.38c: %I.type.202 = bind_symbolic_name Self, 2 [symbolic]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.e96 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3ff: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %I.type.224: type = facet_type <@I, @I(%T.8b3, %empty_tuple.type)> [symbolic]
+// CHECK:STDOUT:   %Self.e67: %I.type.224 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %require_complete.d4a: <witness> = require_complete_type %I.type.224 [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.541: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %I.type.680: type = facet_type <@I, @I(%empty_struct_type, %empty_tuple.type)> [concrete]
+// CHECK:STDOUT:   %T.c05: %I.type.680 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.2c1: type = pattern_type %I.type.680 [concrete]
+// CHECK:STDOUT:   %Self.484: %I.type.680 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.c05 [symbolic]
+// CHECK:STDOUT:   %pattern_type.bf3: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %A.type: type = fn_type @A [concrete]
 // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.c8b: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.cb1: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
 // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %complete_type.3d9: <witness> = complete_type_witness %I.type.202 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.806: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type.202 = facet_value %C, (%I.impl_witness.806) [concrete]
+// CHECK:STDOUT:   %complete_type.190: <witness> = complete_type_witness %I.type.680 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.8a5: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type.680 = facet_value %C, (%I.impl_witness.8a5) [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %A.specific_fn: <specific function> = specific_function %A, @A(%I.facet) [concrete]
 // CHECK:STDOUT: }
@@ -550,30 +550,30 @@ fn B() {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc7_14.1 [symbolic = %T.loc7_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:     %.loc7_35: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc7_36: type = converted %.loc7_35, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %I.type.loc7_36.1: type = facet_type <@I, @I(constants.%T.8b3, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.bea)]
+// CHECK:STDOUT:     %I.type.loc7_36.1: type = facet_type <@I, @I(constants.%T.8b3, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.224)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc7_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%T.8b3) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness.989)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%T.8b3) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness.541)]
 // CHECK:STDOUT:   %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a84 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @A.%pattern_type (%pattern_type.3ff) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @A.%pattern_type (%pattern_type.3ff) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.2c1 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @A.%pattern_type (%pattern_type.bf3) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @A.%pattern_type (%pattern_type.bf3) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc9_18.1: type = splice_block %I.type [concrete = constants.%I.type.202] {
+// CHECK:STDOUT:     %.loc9_18.1: type = splice_block %I.type [concrete = constants.%I.type.680] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:       %.loc9_13: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:       %.loc9_17: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc9_18.2: type = converted %.loc9_13, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:       %.loc9_18.3: type = converted %.loc9_17, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %I.type: type = facet_type <@I, @I(constants.%empty_struct_type, constants.%empty_tuple.type)> [concrete = constants.%I.type.202]
+// CHECK:STDOUT:       %I.type: type = facet_type <@I, @I(constants.%empty_struct_type, constants.%empty_tuple.type)> [concrete = constants.%I.type.680]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc9_6.2: %I.type.202 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.e96)]
+// CHECK:STDOUT:     %T.loc9_6.2: %I.type.680 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.c05)]
 // CHECK:STDOUT:     %t.param: @A.%T.as_type.loc9_24.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc9_24.1: type = splice_block %.loc9_24.2 [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %I.type.202 = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T.e96)]
+// CHECK:STDOUT:       %T.ref: %I.type.680 = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T.c05)]
 // CHECK:STDOUT:       %T.as_type.loc9_24.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc9_24.2: type = converted %T.ref, %T.as_type.loc9_24.2 [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -587,11 +587,11 @@ fn B() {
 // CHECK:STDOUT:   %W.loc3_23.1: type = bind_symbolic_name W, 1 [symbolic = %W.loc3_23.1 (constants.%W)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%V.loc3_13.1, %W.loc3_23.1)> [symbolic = %I.type (constants.%I.type.f76)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.f76) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.770)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%V.loc3_13.1, %W.loc3_23.1)> [symbolic = %I.type (constants.%I.type.5dd)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.5dd) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.e09)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.f76) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.770)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.5dd) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.e09)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -617,9 +617,9 @@ fn B() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.I.impl(%T.loc7_14.1: type) {
 // CHECK:STDOUT:   %T.loc7_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_14.2 (constants.%T.8b3)]
-// CHECK:STDOUT:   %I.type.loc7_36.2: type = facet_type <@I, @I(%T.loc7_14.2, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.bea)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc7_36.2 [symbolic = %require_complete (constants.%require_complete.5ce)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.loc7_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness.989)]
+// CHECK:STDOUT:   %I.type.loc7_36.2: type = facet_type <@I, @I(%T.loc7_14.2, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.224)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc7_36.2 [symbolic = %require_complete (constants.%require_complete.d4a)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.loc7_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness.541)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -633,7 +633,7 @@ fn B() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -643,13 +643,13 @@ fn B() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @A(%T.loc9_6.2: %I.type.202) {
-// CHECK:STDOUT:   %T.loc9_6.1: %I.type.202 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.e96)]
+// CHECK:STDOUT: generic fn @A(%T.loc9_6.2: %I.type.680) {
+// CHECK:STDOUT:   %T.loc9_6.1: %I.type.680 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.c05)]
 // CHECK:STDOUT:   %T.as_type.loc9_24.1: type = facet_access_type %T.loc9_6.1 [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_24.1 [symbolic = %pattern_type (constants.%pattern_type.3ff)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_24.1 [symbolic = %pattern_type (constants.%pattern_type.bf3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_24.1 [symbolic = %require_complete (constants.%require_complete.c8b)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_24.1 [symbolic = %require_complete (constants.%require_complete.cb1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @A.%T.as_type.loc9_24.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -666,10 +666,10 @@ fn B() {
 // CHECK:STDOUT:   %.loc12_6.3: init %C = class_init (), %.loc12_6.2 [concrete = constants.%C.val]
 // CHECK:STDOUT:   %.loc12_6.4: ref %C = temporary %.loc12_6.2, %.loc12_6.3
 // CHECK:STDOUT:   %.loc12_8.1: ref %C = converted %.loc12_6.1, %.loc12_6.4
-// CHECK:STDOUT:   %I.facet.loc12_12.1: %I.type.202 = facet_value constants.%C, (constants.%I.impl_witness.806) [concrete = constants.%I.facet]
-// CHECK:STDOUT:   %.loc12_12.1: %I.type.202 = converted constants.%C, %I.facet.loc12_12.1 [concrete = constants.%I.facet]
-// CHECK:STDOUT:   %I.facet.loc12_12.2: %I.type.202 = facet_value constants.%C, (constants.%I.impl_witness.806) [concrete = constants.%I.facet]
-// CHECK:STDOUT:   %.loc12_12.2: %I.type.202 = converted constants.%C, %I.facet.loc12_12.2 [concrete = constants.%I.facet]
+// CHECK:STDOUT:   %I.facet.loc12_12.1: %I.type.680 = facet_value constants.%C, (constants.%I.impl_witness.8a5) [concrete = constants.%I.facet]
+// CHECK:STDOUT:   %.loc12_12.1: %I.type.680 = converted constants.%C, %I.facet.loc12_12.1 [concrete = constants.%I.facet]
+// CHECK:STDOUT:   %I.facet.loc12_12.2: %I.type.680 = facet_value constants.%C, (constants.%I.impl_witness.8a5) [concrete = constants.%I.facet]
+// CHECK:STDOUT:   %.loc12_12.2: %I.type.680 = converted constants.%C, %I.facet.loc12_12.2 [concrete = constants.%I.facet]
 // CHECK:STDOUT:   %A.specific_fn: <specific function> = specific_function %A.ref, @A(constants.%I.facet) [concrete = constants.%A.specific_fn]
 // CHECK:STDOUT:   %.loc12_8.2: %C = bind_value %.loc12_8.1
 // CHECK:STDOUT:   %A.call: init %empty_tuple.type = call %A.specific_fn(%.loc12_8.2)
@@ -689,15 +689,15 @@ fn B() {
 // CHECK:STDOUT:   %W.loc3_23.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.bea
-// CHECK:STDOUT:   %Self.2 => constants.%Self.ec5
+// CHECK:STDOUT:   %I.type => constants.%I.type.224
+// CHECK:STDOUT:   %Self.2 => constants.%Self.e67
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%T.8b3) {
 // CHECK:STDOUT:   %T.loc7_14.2 => constants.%T.8b3
-// CHECK:STDOUT:   %I.type.loc7_36.2 => constants.%I.type.bea
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.5ce
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.989
+// CHECK:STDOUT:   %I.type.loc7_36.2 => constants.%I.type.224
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.d4a
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%empty_struct_type, constants.%empty_tuple.type) {
@@ -705,21 +705,21 @@ fn B() {
 // CHECK:STDOUT:   %W.loc3_23.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.202
-// CHECK:STDOUT:   %Self.2 => constants.%Self.38c
+// CHECK:STDOUT:   %I.type => constants.%I.type.680
+// CHECK:STDOUT:   %Self.2 => constants.%Self.484
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A(constants.%T.e96) {
-// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.e96
+// CHECK:STDOUT: specific @A(constants.%T.c05) {
+// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.c05
 // CHECK:STDOUT:   %T.as_type.loc9_24.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3ff
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.bf3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T.loc7_14.2 => constants.%empty_struct_type
-// CHECK:STDOUT:   %I.type.loc7_36.2 => constants.%I.type.202
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.3d9
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.806
+// CHECK:STDOUT:   %I.type.loc7_36.2 => constants.%I.type.680
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.190
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.8a5
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
@@ -743,12 +743,12 @@ fn B() {
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.f76: type = facet_type <@I, @I(%V, %W)> [symbolic]
-// CHECK:STDOUT:   %Self.770: %I.type.f76 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %I.type.5dd: type = facet_type <@I, @I(%V, %W)> [symbolic]
+// CHECK:STDOUT:   %Self.e09: %I.type.5dd = bind_symbolic_name Self, 2 [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -756,19 +756,19 @@ fn B() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %I.type.bea: type = facet_type <@I, @I(%T.8b3, %empty_tuple.type)> [symbolic]
-// CHECK:STDOUT:   %Self.ec5: %I.type.bea = bind_symbolic_name Self, 2 [symbolic]
-// CHECK:STDOUT:   %require_complete.5ce: <witness> = require_complete_type %I.type.bea [symbolic]
+// CHECK:STDOUT:   %I.type.224: type = facet_type <@I, @I(%T.8b3, %empty_tuple.type)> [symbolic]
+// CHECK:STDOUT:   %Self.e67: %I.type.224 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %require_complete.d4a: <witness> = require_complete_type %I.type.224 [symbolic]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %I.type.906: type = facet_type <@I, @I(%empty_struct_type, %empty_struct_type)> [concrete]
-// CHECK:STDOUT:   %T.4b2: %I.type.906 = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a62: type = pattern_type %I.type.906 [concrete]
-// CHECK:STDOUT:   %Self.bc2: %I.type.906 = bind_symbolic_name Self, 2 [symbolic]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.4b2 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f1c: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %I.type.97b: type = facet_type <@I, @I(%empty_struct_type, %empty_struct_type)> [concrete]
+// CHECK:STDOUT:   %T.24f: %I.type.97b = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.291: type = pattern_type %I.type.97b [concrete]
+// CHECK:STDOUT:   %Self.c6b: %I.type.97b = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.24f [symbolic]
+// CHECK:STDOUT:   %pattern_type.cf2: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %A.type: type = fn_type @A [concrete]
 // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.d5b: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.fa3: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
 // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
@@ -810,30 +810,30 @@ fn B() {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc7_14.1 [symbolic = %T.loc7_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:     %.loc7_35: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc7_36: type = converted %.loc7_35, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %I.type.loc7_36.1: type = facet_type <@I, @I(constants.%T.8b3, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.bea)]
+// CHECK:STDOUT:     %I.type.loc7_36.1: type = facet_type <@I, @I(constants.%T.8b3, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.224)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc7_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%T.8b3) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:   %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a62 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @A.%pattern_type (%pattern_type.f1c) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @A.%pattern_type (%pattern_type.f1c) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.291 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @A.%pattern_type (%pattern_type.cf2) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @A.%pattern_type (%pattern_type.cf2) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc9_18.1: type = splice_block %I.type [concrete = constants.%I.type.906] {
+// CHECK:STDOUT:     %.loc9_18.1: type = splice_block %I.type [concrete = constants.%I.type.97b] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:       %.loc9_13: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:       %.loc9_17: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:       %.loc9_18.2: type = converted %.loc9_13, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:       %.loc9_18.3: type = converted %.loc9_17, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:       %I.type: type = facet_type <@I, @I(constants.%empty_struct_type, constants.%empty_struct_type)> [concrete = constants.%I.type.906]
+// CHECK:STDOUT:       %I.type: type = facet_type <@I, @I(constants.%empty_struct_type, constants.%empty_struct_type)> [concrete = constants.%I.type.97b]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc9_6.2: %I.type.906 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.4b2)]
+// CHECK:STDOUT:     %T.loc9_6.2: %I.type.97b = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.24f)]
 // CHECK:STDOUT:     %t.param: @A.%T.as_type.loc9_24.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc9_24.1: type = splice_block %.loc9_24.2 [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %I.type.906 = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T.4b2)]
+// CHECK:STDOUT:       %T.ref: %I.type.97b = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T.24f)]
 // CHECK:STDOUT:       %T.as_type.loc9_24.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc9_24.2: type = converted %T.ref, %T.as_type.loc9_24.2 [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -847,11 +847,11 @@ fn B() {
 // CHECK:STDOUT:   %W.loc3_23.1: type = bind_symbolic_name W, 1 [symbolic = %W.loc3_23.1 (constants.%W)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%V.loc3_13.1, %W.loc3_23.1)> [symbolic = %I.type (constants.%I.type.f76)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.f76) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.770)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%V.loc3_13.1, %W.loc3_23.1)> [symbolic = %I.type (constants.%I.type.5dd)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.5dd) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.e09)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.f76) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.770)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.5dd) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.e09)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -877,8 +877,8 @@ fn B() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.I.impl(%T.loc7_14.1: type) {
 // CHECK:STDOUT:   %T.loc7_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_14.2 (constants.%T.8b3)]
-// CHECK:STDOUT:   %I.type.loc7_36.2: type = facet_type <@I, @I(%T.loc7_14.2, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.bea)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc7_36.2 [symbolic = %require_complete (constants.%require_complete.5ce)]
+// CHECK:STDOUT:   %I.type.loc7_36.2: type = facet_type <@I, @I(%T.loc7_14.2, constants.%empty_tuple.type)> [symbolic = %I.type.loc7_36.2 (constants.%I.type.224)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc7_36.2 [symbolic = %require_complete (constants.%require_complete.d4a)]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.loc7_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -893,7 +893,7 @@ fn B() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -903,13 +903,13 @@ fn B() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @A(%T.loc9_6.2: %I.type.906) {
-// CHECK:STDOUT:   %T.loc9_6.1: %I.type.906 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.4b2)]
+// CHECK:STDOUT: generic fn @A(%T.loc9_6.2: %I.type.97b) {
+// CHECK:STDOUT:   %T.loc9_6.1: %I.type.97b = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.24f)]
 // CHECK:STDOUT:   %T.as_type.loc9_24.1: type = facet_access_type %T.loc9_6.1 [symbolic = %T.as_type.loc9_24.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_24.1 [symbolic = %pattern_type (constants.%pattern_type.f1c)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_24.1 [symbolic = %pattern_type (constants.%pattern_type.cf2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_24.1 [symbolic = %require_complete (constants.%require_complete.d5b)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_24.1 [symbolic = %require_complete (constants.%require_complete.fa3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @A.%T.as_type.loc9_24.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -942,14 +942,14 @@ fn B() {
 // CHECK:STDOUT:   %W.loc3_23.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.bea
-// CHECK:STDOUT:   %Self.2 => constants.%Self.ec5
+// CHECK:STDOUT:   %I.type => constants.%I.type.224
+// CHECK:STDOUT:   %Self.2 => constants.%Self.e67
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%T.8b3) {
 // CHECK:STDOUT:   %T.loc7_14.2 => constants.%T.8b3
-// CHECK:STDOUT:   %I.type.loc7_36.2 => constants.%I.type.bea
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.5ce
+// CHECK:STDOUT:   %I.type.loc7_36.2 => constants.%I.type.224
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.d4a
 // CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -958,21 +958,21 @@ fn B() {
 // CHECK:STDOUT:   %W.loc3_23.1 => constants.%empty_struct_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.906
-// CHECK:STDOUT:   %Self.2 => constants.%Self.bc2
+// CHECK:STDOUT:   %I.type => constants.%I.type.97b
+// CHECK:STDOUT:   %Self.2 => constants.%Self.c6b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A(constants.%T.4b2) {
-// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.4b2
+// CHECK:STDOUT: specific @A(constants.%T.24f) {
+// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.24f
 // CHECK:STDOUT:   %T.as_type.loc9_24.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f1c
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cf2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_mismatch_impl_self_with_fixed_specific.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %V: type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
@@ -983,33 +983,33 @@ fn B() {
 // CHECK:STDOUT:   %C.c6b: type = class_type @C, @C(%V, %W) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.4f9: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%V, %W) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ca5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%V, %W) [symbolic]
 // CHECK:STDOUT:   %ptr.1cf: type = ptr_type %C.c6b [symbolic]
 // CHECK:STDOUT:   %pattern_type.b68: type = pattern_type %ptr.1cf [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.dcd: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%V, %W) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.206: %C.as.Destroy.impl.Op.type.dcd = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.e13: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%V, %W) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.b16: %C.as.Destroy.impl.Op.type.e13 = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %C.463: type = class_type @C, @C(%T.8b3, %empty_tuple.type) [symbolic]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %T.826: %I.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %T.ce4: %I.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %A.type: type = fn_type @A [concrete]
 // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.9b1: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.75b: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
 // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.c74: type = class_type @C, @C(%empty_struct_type, %empty_struct_type) [concrete]
 // CHECK:STDOUT:   %C.val: %C.c74 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e53: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%empty_struct_type, %empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.967: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%empty_struct_type, %empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.f25: %C.as.Destroy.impl.Op.type.967 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.fae: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%empty_struct_type, %empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.154: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%empty_struct_type, %empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.825: %C.as.Destroy.impl.Op.type.154 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.128: type = ptr_type %C.c74 [concrete]
 // CHECK:STDOUT:   %pattern_type.dfd: type = pattern_type %ptr.128 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.f25, @C.as.Destroy.impl.Op(%empty_struct_type, %empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.825, @C.as.Destroy.impl.Op(%empty_struct_type, %empty_struct_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1055,18 +1055,18 @@ fn B() {
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%T.8b3) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:   %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @A.%pattern_type (%pattern_type.6de) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @A.%pattern_type (%pattern_type.6de) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @A.%pattern_type (%pattern_type.802) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @A.%pattern_type (%pattern_type.802) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc9_10: type = splice_block %I.ref [concrete = constants.%I.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc9_6.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.826)]
+// CHECK:STDOUT:     %T.loc9_6.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.ce4)]
 // CHECK:STDOUT:     %t.param: @A.%T.as_type.loc9_16.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc9_16.1: type = splice_block %.loc9_16.2 [symbolic = %T.as_type.loc9_16.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %I.type = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T.826)]
+// CHECK:STDOUT:       %T.ref: %I.type = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T.ce4)]
 // CHECK:STDOUT:       %T.as_type.loc9_16.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc9_16.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc9_16.2: type = converted %T.ref, %T.as_type.loc9_16.2 [symbolic = %T.as_type.loc9_16.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -1076,7 +1076,7 @@ fn B() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1087,14 +1087,14 @@ fn B() {
 // CHECK:STDOUT:   %V: type = bind_symbolic_name V, 0 [symbolic = %V (constants.%V)]
 // CHECK:STDOUT:   %W: type = bind_symbolic_name W, 1 [symbolic = %W (constants.%W)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%V, %W) [symbolic = %C (constants.%C.c6b)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%V, %W) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4f9)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%V, %W) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ca5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%V, %W) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.dcd)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.dcd) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.206)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%V, %W) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.e13)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.e13) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.b16)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.dcd) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.206)] {
+// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.e13) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.b16)] {
 // CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.b68) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.b68) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc5_29.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -1136,7 +1136,7 @@ fn B() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.c6b [symbolic = @C.as.Destroy.impl.%C (constants.%C.c6b)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%V, constants.%W) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.4f9)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%V, constants.%W) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ca5)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1158,12 +1158,12 @@ fn B() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @A(%T.loc9_6.2: %I.type) {
-// CHECK:STDOUT:   %T.loc9_6.1: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.826)]
+// CHECK:STDOUT:   %T.loc9_6.1: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.ce4)]
 // CHECK:STDOUT:   %T.as_type.loc9_16.1: type = facet_access_type %T.loc9_6.1 [symbolic = %T.as_type.loc9_16.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_16.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_16.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_16.1 [symbolic = %require_complete (constants.%require_complete.9b1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc9_16.1 [symbolic = %require_complete (constants.%require_complete.75b)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @A.%T.as_type.loc9_16.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -1185,8 +1185,8 @@ fn B() {
 // CHECK:STDOUT:   %.loc19_6.3: init %C.c74 = class_init (), %.loc19_6.2 [concrete = constants.%C.val]
 // CHECK:STDOUT:   %.loc19_6.4: ref %C.c74 = temporary %.loc19_6.2, %.loc19_6.3
 // CHECK:STDOUT:   %.loc19_8: ref %C.c74 = converted %.loc19_6.1, %.loc19_6.4
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc19_6.4, constants.%C.as.Destroy.impl.Op.f25
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f25, @C.as.Destroy.impl.Op(constants.%empty_struct_type, constants.%empty_struct_type) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc19_6.4, constants.%C.as.Destroy.impl.Op.825
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.825, @C.as.Destroy.impl.Op(constants.%empty_struct_type, constants.%empty_struct_type) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc19_6.4, %C.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.128 = addr_of %.loc19_6.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -1202,7 +1202,7 @@ fn B() {
 // CHECK:STDOUT:   %V => constants.%V
 // CHECK:STDOUT:   %W => constants.%W
 // CHECK:STDOUT:   %C => constants.%C.c6b
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4f9
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ca5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%V, constants.%W) {
@@ -1224,10 +1224,10 @@ fn B() {
 // CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A(constants.%T.826) {
-// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.826
+// CHECK:STDOUT: specific @A(constants.%T.ce4) {
+// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.ce4
 // CHECK:STDOUT:   %T.as_type.loc9_16.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%empty_struct_type, constants.%empty_struct_type) {
@@ -1241,11 +1241,11 @@ fn B() {
 // CHECK:STDOUT:   %V => constants.%empty_struct_type
 // CHECK:STDOUT:   %W => constants.%empty_struct_type
 // CHECK:STDOUT:   %C => constants.%C.c74
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e53
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.fae
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.967
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.f25
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.154
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.825
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%empty_struct_type, constants.%empty_struct_type) {
diff --git a/toolchain/check/testdata/facet/convert_facet_value_as_type_knows_original_type.carbon b/toolchain/check/testdata/facet/convert_facet_value_as_type_knows_original_type.carbon
index 783ae24449c0..b2d237e5db7b 100644
--- a/toolchain/check/testdata/facet/convert_facet_value_as_type_knows_original_type.carbon
+++ b/toolchain/check/testdata/facet/convert_facet_value_as_type_knows_original_type.carbon
@@ -63,9 +63,9 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -81,7 +81,7 @@ fn F() {
 // CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %e: %Eats.type = bind_symbolic_name e, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a05: type = pattern_type %Eats.type [concrete]
+// CHECK:STDOUT:   %pattern_type.08e: type = pattern_type %Eats.type [concrete]
 // CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
 // CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
@@ -126,7 +126,7 @@ fn F() {
 // CHECK:STDOUT:   %Eats.impl_witness_table = impl_witness_table (), @Goat.as.Eats.impl [concrete]
 // CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table [concrete = constants.%Eats.impl_witness]
 // CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
-// CHECK:STDOUT:     %e.patt: %pattern_type.a05 = symbolic_binding_pattern e, 0 [concrete]
+// CHECK:STDOUT:     %e.patt: %pattern_type.08e = symbolic_binding_pattern e, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc11: type = splice_block %Eats.ref [concrete = constants.%Eats.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -138,7 +138,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -146,7 +146,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -234,14 +234,14 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Eats.Eat.type: type = fn_type @Eats.Eat [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Eats.Eat: %Eats.Eat.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Eats.assoc_type: type = assoc_entity_type @Eats [concrete]
 // CHECK:STDOUT:   %assoc0.e43: %Eats.assoc_type = assoc_entity element0, @Eats.%Eats.Eat.decl [concrete]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Goat.Bleet.type: type = fn_type @Goat.Bleet [concrete]
 // CHECK:STDOUT:   %Goat.Bleet: %Goat.Bleet.type = struct_value () [concrete]
@@ -252,7 +252,7 @@ fn F() {
 // CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %Goat, (%Eats.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.943: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.96e: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.940: type = ptr_type %Goat [concrete]
 // CHECK:STDOUT:   %pattern_type.396: type = pattern_type %ptr.940 [concrete]
 // CHECK:STDOUT:   %Goat.as.Destroy.impl.Op.type: type = fn_type @Goat.as.Destroy.impl.Op [concrete]
@@ -264,7 +264,7 @@ fn F() {
 // CHECK:STDOUT:   %Animal.facet: %Animal.type = facet_value %Goat, (%Animal.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.ab7: type = pattern_type %Goat [concrete]
 // CHECK:STDOUT:   %Goat.val: %Goat = struct_value () [concrete]
-// CHECK:STDOUT:   %.f6e: type = fn_type_with_self_type %Eats.Eat.type, %Eats.facet [concrete]
+// CHECK:STDOUT:   %.e92: type = fn_type_with_self_type %Eats.Eat.type, %Eats.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -292,7 +292,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:   %Eats.Eat.decl: %Eats.Eat.type = fn_decl @Eats.Eat [concrete = constants.%Eats.Eat] {} {}
 // CHECK:STDOUT:   %assoc0: %Eats.assoc_type = assoc_entity element0, %Eats.Eat.decl [concrete = constants.%assoc0.e43]
 // CHECK:STDOUT:
@@ -303,7 +303,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -356,7 +356,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Goat [concrete = constants.%Goat]
 // CHECK:STDOUT:   impl_decl @Goat.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Goat.as.Destroy.impl.%Goat.as.Destroy.impl.Op.decl), @Goat.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.943]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.96e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -411,7 +411,7 @@ fn F() {
 // CHECK:STDOUT:   %Goat.Bleet.call.loc23: init %empty_tuple.type = call %Bleet.ref.loc23()
 // CHECK:STDOUT:   %x.ref.loc24: %Goat = name_ref x, %x
 // CHECK:STDOUT:   %Eat.ref.loc24: %Eats.assoc_type = name_ref Eat, @Eats.%assoc0 [concrete = constants.%assoc0.e43]
-// CHECK:STDOUT:   %impl.elem0.loc24: %.f6e = impl_witness_access constants.%Eats.impl_witness, element0 [concrete = constants.%Goat.as.Eats.impl.Eat]
+// CHECK:STDOUT:   %impl.elem0.loc24: %.e92 = impl_witness_access constants.%Eats.impl_witness, element0 [concrete = constants.%Goat.as.Eats.impl.Eat]
 // CHECK:STDOUT:   %Goat.as.Eats.impl.Eat.call.loc24: init %empty_tuple.type = call %impl.elem0.loc24()
 // CHECK:STDOUT:   %.loc26_6.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %Goat.ref.loc26_11: type = name_ref Goat, file.%Goat.decl [concrete = constants.%Goat]
@@ -440,7 +440,7 @@ fn F() {
 // CHECK:STDOUT:   %as_type.loc27: type = facet_access_type %.loc27_26 [concrete = constants.%Goat]
 // CHECK:STDOUT:   %.loc27_35: type = converted %.loc27_26, %as_type.loc27 [concrete = constants.%Goat]
 // CHECK:STDOUT:   %Eat.ref.loc27: %Eats.assoc_type = name_ref Eat, @Eats.%assoc0 [concrete = constants.%assoc0.e43]
-// CHECK:STDOUT:   %impl.elem0.loc27: %.f6e = impl_witness_access constants.%Eats.impl_witness, element0 [concrete = constants.%Goat.as.Eats.impl.Eat]
+// CHECK:STDOUT:   %impl.elem0.loc27: %.e92 = impl_witness_access constants.%Eats.impl_witness, element0 [concrete = constants.%Goat.as.Eats.impl.Eat]
 // CHECK:STDOUT:   %Goat.as.Eats.impl.Eat.call.loc27: init %empty_tuple.type = call %impl.elem0.loc27()
 // CHECK:STDOUT:   %Goat.as.Destroy.impl.Op.bound.loc27: <bound method> = bound_method %.loc27_6.4, constants.%Goat.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc27: %ptr.940 = addr_of %.loc27_6.4
@@ -454,7 +454,7 @@ fn F() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Eats.Eat(constants.%Self.1b5) {}
+// CHECK:STDOUT: specific @Eats.Eat(constants.%Self.3c7) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Eats.Eat(constants.%Eats.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/facet/convert_facet_value_to_itself.carbon b/toolchain/check/testdata/facet/convert_facet_value_to_itself.carbon
index 6adc10a656ef..58494f94088d 100644
--- a/toolchain/check/testdata/facet/convert_facet_value_to_itself.carbon
+++ b/toolchain/check/testdata/facet/convert_facet_value_to_itself.carbon
@@ -29,16 +29,16 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %Animal.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
 // CHECK:STDOUT:   %FeedAnimal.type: type = fn_type @FeedAnimal [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %FeedAnimal: %FeedAnimal.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
 // CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.ec8: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%T) [symbolic]
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.c90: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%T) [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -54,7 +54,7 @@ fn F() {
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Animal.facet: %Animal.type = facet_value %Goat, (%Animal.impl_witness) [concrete]
 // CHECK:STDOUT:   %HandleAnimal.specific_fn: <specific function> = specific_function %HandleAnimal, @HandleAnimal(%Animal.facet) [concrete]
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.82e: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%Animal.facet) [concrete]
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.3e1: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%Animal.facet) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -78,7 +78,7 @@ fn F() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %FeedAnimal.decl: %FeedAnimal.type = fn_decl @FeedAnimal [concrete = constants.%FeedAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc17: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -87,7 +87,7 @@ fn F() {
 // CHECK:STDOUT:     %T.loc17_15.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc19: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -106,7 +106,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -161,13 +161,13 @@ fn F() {
 // CHECK:STDOUT:   %T.loc19_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc19_17.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_31.2: <specific function> = specific_function constants.%FeedAnimal, @FeedAnimal(%T.loc19_17.1) [symbolic = %FeedAnimal.specific_fn.loc19_31.2 (constants.%FeedAnimal.specific_fn.ec8)]
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_31.2: <specific function> = specific_function constants.%FeedAnimal, @FeedAnimal(%T.loc19_17.1) [symbolic = %FeedAnimal.specific_fn.loc19_31.2 (constants.%FeedAnimal.specific_fn.c90)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %FeedAnimal.ref: %FeedAnimal.type = name_ref FeedAnimal, file.%FeedAnimal.decl [concrete = constants.%FeedAnimal]
 // CHECK:STDOUT:     %T.ref: %Animal.type = name_ref T, %T.loc19_17.2 [symbolic = %T.loc19_17.1 (constants.%T)]
-// CHECK:STDOUT:     %FeedAnimal.specific_fn.loc19_31.1: <specific function> = specific_function %FeedAnimal.ref, @FeedAnimal(constants.%T) [symbolic = %FeedAnimal.specific_fn.loc19_31.2 (constants.%FeedAnimal.specific_fn.ec8)]
+// CHECK:STDOUT:     %FeedAnimal.specific_fn.loc19_31.1: <specific function> = specific_function %FeedAnimal.ref, @FeedAnimal(constants.%T) [symbolic = %FeedAnimal.specific_fn.loc19_31.2 (constants.%FeedAnimal.specific_fn.c90)]
 // CHECK:STDOUT:     %FeedAnimal.call: init %empty_tuple.type = call %FeedAnimal.specific_fn.loc19_31.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -200,7 +200,7 @@ fn F() {
 // CHECK:STDOUT:   %T.loc19_17.1 => constants.%Animal.facet
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_31.2 => constants.%FeedAnimal.specific_fn.82e
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_31.2 => constants.%FeedAnimal.specific_fn.3e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @FeedAnimal(constants.%Animal.facet) {
diff --git a/toolchain/check/testdata/facet/convert_facet_value_to_narrowed_facet_type.carbon b/toolchain/check/testdata/facet/convert_facet_value_to_narrowed_facet_type.carbon
index 996adf06a0bf..9f39dbab4786 100644
--- a/toolchain/check/testdata/facet/convert_facet_value_to_narrowed_facet_type.carbon
+++ b/toolchain/check/testdata/facet/convert_facet_value_to_narrowed_facet_type.carbon
@@ -93,36 +93,36 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %Eats.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a05: type = pattern_type %Eats.type [concrete]
+// CHECK:STDOUT:   %pattern_type.08e: type = pattern_type %Eats.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b4: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.de8: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.c75: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.a45: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %Animal.type, %type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %facet_type: type = facet_type <@Eats & @Animal> [concrete]
 // CHECK:STDOUT:   %U: %facet_type = bind_symbolic_name U, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.787: type = pattern_type %facet_type [concrete]
+// CHECK:STDOUT:   %pattern_type.004: type = pattern_type %facet_type [concrete]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
-// CHECK:STDOUT:   %pattern_type.56f: type = pattern_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.3a3: type = pattern_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
 // CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.680: <witness> = require_complete_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.80b: <witness> = require_complete_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %U, @Eats [symbolic]
 // CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %U.as_type, (%Eats.lookup_impl_witness) [symbolic]
 // CHECK:STDOUT:   %Feed.specific_fn: <specific function> = specific_function %Feed, @Feed(%Eats.facet) [symbolic]
@@ -135,8 +135,8 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -151,9 +151,9 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a05 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type (%pattern_type.2b4) = binding_pattern e [concrete]
-// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type (%pattern_type.2b4) = value_param_pattern %e.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.08e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type (%pattern_type.de8) = binding_pattern e [concrete]
+// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type (%pattern_type.de8) = value_param_pattern %e.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc6_13: type = splice_block %Eats.ref [concrete = constants.%Eats.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -169,15 +169,15 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %e: @Feed.%T.as_type.loc6_22.1 (%T.as_type) = bind_name e, %e.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.787 = symbolic_binding_pattern U, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.56f) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.56f) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.004 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.3a3) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.3a3) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc8_28.1: type = splice_block %.loc8_28.3 [concrete = constants.%facet_type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
-// CHECK:STDOUT:       %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %impl.elem0: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Animal.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Animal.ref, %Eats.ref) [concrete = constants.%facet_type]
 // CHECK:STDOUT:       %.loc8_28.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type]
@@ -195,7 +195,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -203,7 +203,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -213,10 +213,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic fn @Feed(%T.loc6_9.2: %Eats.type) {
 // CHECK:STDOUT:   %T.loc6_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc6_9.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc6_22.1: type = facet_access_type %T.loc6_9.1 [symbolic = %T.as_type.loc6_22.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc6_22.1 [symbolic = %pattern_type (constants.%pattern_type.2b4)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc6_22.1 [symbolic = %pattern_type (constants.%pattern_type.de8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc6_22.1 [symbolic = %require_complete (constants.%require_complete.c75)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc6_22.1 [symbolic = %require_complete (constants.%require_complete.a45)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc6_22.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -227,10 +227,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic fn @HandleAnimal(%U.loc8_17.2: %facet_type) {
 // CHECK:STDOUT:   %U.loc8_17.1: %facet_type = bind_symbolic_name U, 0 [symbolic = %U.loc8_17.1 (constants.%U)]
 // CHECK:STDOUT:   %U.as_type.loc8_39.1: type = facet_access_type %U.loc8_17.1 [symbolic = %U.as_type.loc8_39.1 (constants.%U.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc8_39.1 [symbolic = %pattern_type (constants.%pattern_type.56f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc8_39.1 [symbolic = %pattern_type (constants.%pattern_type.3a3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc8_39.1 [symbolic = %require_complete (constants.%require_complete.680)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc8_39.1 [symbolic = %require_complete (constants.%require_complete.80b)]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %U.loc8_17.1, @Eats [symbolic = %Eats.lookup_impl_witness (constants.%Eats.lookup_impl_witness)]
 // CHECK:STDOUT:   %Eats.facet.loc8_50.3: %Eats.type = facet_value %U.as_type.loc8_39.1, (%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc8_50.3 (constants.%Eats.facet)]
 // CHECK:STDOUT:   %Feed.specific_fn.loc8_44.2: <specific function> = specific_function constants.%Feed, @Feed(%Eats.facet.loc8_50.3) [symbolic = %Feed.specific_fn.loc8_44.2 (constants.%Feed.specific_fn)]
@@ -252,67 +252,67 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @Feed(constants.%T) {
 // CHECK:STDOUT:   %T.loc6_9.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc6_22.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2b4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.de8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HandleAnimal(constants.%U) {
 // CHECK:STDOUT:   %U.loc8_17.1 => constants.%U
 // CHECK:STDOUT:   %U.as_type.loc8_39.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.56f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3a3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Feed(constants.%Eats.facet) {
 // CHECK:STDOUT:   %T.loc6_9.1 => constants.%Eats.facet
 // CHECK:STDOUT:   %T.as_type.loc6_22.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.56f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3a3
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.680
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.80b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- bigger.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Tame.type: type = facet_type <@Tame> [concrete]
-// CHECK:STDOUT:   %Self.7ee: %Tame.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.e89: %Tame.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.0c8: <bound method> = bound_method %Tame.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.6ff: type = facet_type <@Eats & @Tame> [concrete]
-// CHECK:STDOUT:   %V: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.9f3: type = pattern_type %facet_type.6ff [concrete]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.584: <bound method> = bound_method %Tame.type, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.a4d: type = facet_type <@Eats & @Tame> [concrete]
+// CHECK:STDOUT:   %V: %facet_type.a4d = bind_symbolic_name V, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.0e6: type = pattern_type %facet_type.a4d [concrete]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %pattern_type.760: type = pattern_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.f4d: type = pattern_type %V.as_type [symbolic]
 // CHECK:STDOUT:   %FeedTame.type: type = fn_type @FeedTame [concrete]
 // CHECK:STDOUT:   %FeedTame: %FeedTame.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.940: <witness> = require_complete_type %V.as_type [symbolic]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.a5f: <bound method> = bound_method %Eats.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.c3f: type = facet_type <@Eats & @Animal> [concrete]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.70b: <bound method> = bound_method %facet_type.c3f, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.a95: type = facet_type <@Eats & @Animal & @Tame> [concrete]
-// CHECK:STDOUT:   %W: %facet_type.a95 = bind_symbolic_name W, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f1b: type = pattern_type %facet_type.a95 [concrete]
+// CHECK:STDOUT:   %require_complete.ed9: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.622: <bound method> = bound_method %Eats.type, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.c5e: type = facet_type <@Eats & @Animal> [concrete]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.9eb: <bound method> = bound_method %facet_type.c5e, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.936: type = facet_type <@Eats & @Animal & @Tame> [concrete]
+// CHECK:STDOUT:   %W: %facet_type.936 = bind_symbolic_name W, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.26f: type = pattern_type %facet_type.936 [concrete]
 // CHECK:STDOUT:   %W.as_type: type = facet_access_type %W [symbolic]
-// CHECK:STDOUT:   %pattern_type.002: type = pattern_type %W.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.c13: type = pattern_type %W.as_type [symbolic]
 // CHECK:STDOUT:   %HandleTameAnimal.type: type = fn_type @HandleTameAnimal [concrete]
 // CHECK:STDOUT:   %HandleTameAnimal: %HandleTameAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.40f: <witness> = require_complete_type %W.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.560: <witness> = require_complete_type %W.as_type [symbolic]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %W, @Eats [symbolic]
 // CHECK:STDOUT:   %Tame.lookup_impl_witness: <witness> = lookup_impl_witness %W, @Tame [symbolic]
-// CHECK:STDOUT:   %facet_value: %facet_type.6ff = facet_value %W.as_type, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %facet_value: %facet_type.a4d = facet_value %W.as_type, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic]
 // CHECK:STDOUT:   %FeedTame.specific_fn: <specific function> = specific_function %FeedTame, @FeedTame(%facet_value) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -323,8 +323,8 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -341,54 +341,54 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %Tame.decl: type = interface_decl @Tame [concrete = constants.%Tame.type] {} {}
 // CHECK:STDOUT:   %FeedTame.decl: %FeedTame.type = fn_decl @FeedTame [concrete = constants.%FeedTame] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.9f3 = symbolic_binding_pattern V, 0 [concrete]
-// CHECK:STDOUT:     %v.patt: @FeedTame.%pattern_type (%pattern_type.760) = binding_pattern v [concrete]
-// CHECK:STDOUT:     %v.param_patt: @FeedTame.%pattern_type (%pattern_type.760) = value_param_pattern %v.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.0e6 = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %v.patt: @FeedTame.%pattern_type (%pattern_type.f4d) = binding_pattern v [concrete]
+// CHECK:STDOUT:     %v.param_patt: @FeedTame.%pattern_type (%pattern_type.f4d) = value_param_pattern %v.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc7_22.1: type = splice_block %.loc7_22.3 [concrete = constants.%facet_type.6ff] {
+// CHECK:STDOUT:     %.loc7_22.1: type = splice_block %.loc7_22.3 [concrete = constants.%facet_type.a4d] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
 // CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
-// CHECK:STDOUT:       %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Tame.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.0c8]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Tame.ref, %Eats.ref) [concrete = constants.%facet_type.6ff]
-// CHECK:STDOUT:       %.loc7_22.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.6ff]
-// CHECK:STDOUT:       %.loc7_22.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc7_22.2 [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:       %impl.elem0: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Tame.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.584]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Tame.ref, %Eats.ref) [concrete = constants.%facet_type.a4d]
+// CHECK:STDOUT:       %.loc7_22.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.a4d]
+// CHECK:STDOUT:       %.loc7_22.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc7_22.2 [concrete = constants.%facet_type.a4d]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %V.loc7_13.2: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc7_13.1 (constants.%V)]
+// CHECK:STDOUT:     %V.loc7_13.2: %facet_type.a4d = bind_symbolic_name V, 0 [symbolic = %V.loc7_13.1 (constants.%V)]
 // CHECK:STDOUT:     %v.param: @FeedTame.%V.as_type.loc7_33.1 (%V.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc7_33.1: type = splice_block %.loc7_33.2 [symbolic = %V.as_type.loc7_33.1 (constants.%V.as_type)] {
-// CHECK:STDOUT:       %V.ref: %facet_type.6ff = name_ref V, %V.loc7_13.2 [symbolic = %V.loc7_13.1 (constants.%V)]
+// CHECK:STDOUT:       %V.ref: %facet_type.a4d = name_ref V, %V.loc7_13.2 [symbolic = %V.loc7_13.1 (constants.%V)]
 // CHECK:STDOUT:       %V.as_type.loc7_33.2: type = facet_access_type %V.ref [symbolic = %V.as_type.loc7_33.1 (constants.%V.as_type)]
 // CHECK:STDOUT:       %.loc7_33.2: type = converted %V.ref, %V.as_type.loc7_33.2 [symbolic = %V.as_type.loc7_33.1 (constants.%V.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %v: @FeedTame.%V.as_type.loc7_33.1 (%V.as_type) = bind_name v, %v.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleTameAnimal.decl: %HandleTameAnimal.type = fn_decl @HandleTameAnimal [concrete = constants.%HandleTameAnimal] {
-// CHECK:STDOUT:     %W.patt: %pattern_type.f1b = symbolic_binding_pattern W, 0 [concrete]
-// CHECK:STDOUT:     %w.patt: @HandleTameAnimal.%pattern_type (%pattern_type.002) = binding_pattern w [concrete]
-// CHECK:STDOUT:     %w.param_patt: @HandleTameAnimal.%pattern_type (%pattern_type.002) = value_param_pattern %w.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %W.patt: %pattern_type.26f = symbolic_binding_pattern W, 0 [concrete]
+// CHECK:STDOUT:     %w.patt: @HandleTameAnimal.%pattern_type (%pattern_type.c13) = binding_pattern w [concrete]
+// CHECK:STDOUT:     %w.param_patt: @HandleTameAnimal.%pattern_type (%pattern_type.c13) = value_param_pattern %w.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc9_39.1: type = splice_block %.loc9_39.3 [concrete = constants.%facet_type.a95] {
+// CHECK:STDOUT:     %.loc9_39.1: type = splice_block %.loc9_39.3 [concrete = constants.%facet_type.936] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
-// CHECK:STDOUT:       %impl.elem0.loc9_30: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method.loc9_30: <bound method> = bound_method %Eats.ref, %impl.elem0.loc9_30 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.a5f]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc9_30: init type = call %bound_method.loc9_30(%Eats.ref, %Animal.ref) [concrete = constants.%facet_type.c3f]
+// CHECK:STDOUT:       %impl.elem0.loc9_30: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method.loc9_30: <bound method> = bound_method %Eats.ref, %impl.elem0.loc9_30 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.622]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc9_30: init type = call %bound_method.loc9_30(%Eats.ref, %Animal.ref) [concrete = constants.%facet_type.c5e]
 // CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
-// CHECK:STDOUT:       %impl.elem0.loc9_39: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method.loc9_39: <bound method> = bound_method %type.as.BitAndWith.impl.Op.call.loc9_30, %impl.elem0.loc9_39 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.70b]
-// CHECK:STDOUT:       %.loc9_30.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc9_30 [concrete = constants.%facet_type.c3f]
-// CHECK:STDOUT:       %.loc9_30.2: type = converted %type.as.BitAndWith.impl.Op.call.loc9_30, %.loc9_30.1 [concrete = constants.%facet_type.c3f]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc9_39: init type = call %bound_method.loc9_39(%.loc9_30.2, %Tame.ref) [concrete = constants.%facet_type.a95]
-// CHECK:STDOUT:       %.loc9_39.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc9_39 [concrete = constants.%facet_type.a95]
-// CHECK:STDOUT:       %.loc9_39.3: type = converted %type.as.BitAndWith.impl.Op.call.loc9_39, %.loc9_39.2 [concrete = constants.%facet_type.a95]
+// CHECK:STDOUT:       %impl.elem0.loc9_39: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method.loc9_39: <bound method> = bound_method %type.as.BitAndWith.impl.Op.call.loc9_30, %impl.elem0.loc9_39 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.9eb]
+// CHECK:STDOUT:       %.loc9_30.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc9_30 [concrete = constants.%facet_type.c5e]
+// CHECK:STDOUT:       %.loc9_30.2: type = converted %type.as.BitAndWith.impl.Op.call.loc9_30, %.loc9_30.1 [concrete = constants.%facet_type.c5e]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call.loc9_39: init type = call %bound_method.loc9_39(%.loc9_30.2, %Tame.ref) [concrete = constants.%facet_type.936]
+// CHECK:STDOUT:       %.loc9_39.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc9_39 [concrete = constants.%facet_type.936]
+// CHECK:STDOUT:       %.loc9_39.3: type = converted %type.as.BitAndWith.impl.Op.call.loc9_39, %.loc9_39.2 [concrete = constants.%facet_type.936]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %W.loc9_21.2: %facet_type.a95 = bind_symbolic_name W, 0 [symbolic = %W.loc9_21.1 (constants.%W)]
+// CHECK:STDOUT:     %W.loc9_21.2: %facet_type.936 = bind_symbolic_name W, 0 [symbolic = %W.loc9_21.1 (constants.%W)]
 // CHECK:STDOUT:     %w.param: @HandleTameAnimal.%W.as_type.loc9_50.1 (%W.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc9_50.1: type = splice_block %.loc9_50.2 [symbolic = %W.as_type.loc9_50.1 (constants.%W.as_type)] {
-// CHECK:STDOUT:       %W.ref: %facet_type.a95 = name_ref W, %W.loc9_21.2 [symbolic = %W.loc9_21.1 (constants.%W)]
+// CHECK:STDOUT:       %W.ref: %facet_type.936 = name_ref W, %W.loc9_21.2 [symbolic = %W.loc9_21.1 (constants.%W)]
 // CHECK:STDOUT:       %W.as_type.loc9_50.2: type = facet_access_type %W.ref [symbolic = %W.as_type.loc9_50.1 (constants.%W.as_type)]
 // CHECK:STDOUT:       %.loc9_50.2: type = converted %W.ref, %W.as_type.loc9_50.2 [symbolic = %W.as_type.loc9_50.1 (constants.%W.as_type)]
 // CHECK:STDOUT:     }
@@ -397,7 +397,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -405,7 +405,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -413,20 +413,20 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Tame {
-// CHECK:STDOUT:   %Self: %Tame.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.7ee]
+// CHECK:STDOUT:   %Self: %Tame.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e89]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @FeedTame(%V.loc7_13.2: %facet_type.6ff) {
-// CHECK:STDOUT:   %V.loc7_13.1: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc7_13.1 (constants.%V)]
+// CHECK:STDOUT: generic fn @FeedTame(%V.loc7_13.2: %facet_type.a4d) {
+// CHECK:STDOUT:   %V.loc7_13.1: %facet_type.a4d = bind_symbolic_name V, 0 [symbolic = %V.loc7_13.1 (constants.%V)]
 // CHECK:STDOUT:   %V.as_type.loc7_33.1: type = facet_access_type %V.loc7_13.1 [symbolic = %V.as_type.loc7_33.1 (constants.%V.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc7_33.1 [symbolic = %pattern_type (constants.%pattern_type.760)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc7_33.1 [symbolic = %pattern_type (constants.%pattern_type.f4d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %V.as_type.loc7_33.1 [symbolic = %require_complete (constants.%require_complete.940)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %V.as_type.loc7_33.1 [symbolic = %require_complete (constants.%require_complete.ed9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%v.param: @FeedTame.%V.as_type.loc7_33.1 (%V.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -434,26 +434,26 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HandleTameAnimal(%W.loc9_21.2: %facet_type.a95) {
-// CHECK:STDOUT:   %W.loc9_21.1: %facet_type.a95 = bind_symbolic_name W, 0 [symbolic = %W.loc9_21.1 (constants.%W)]
+// CHECK:STDOUT: generic fn @HandleTameAnimal(%W.loc9_21.2: %facet_type.936) {
+// CHECK:STDOUT:   %W.loc9_21.1: %facet_type.936 = bind_symbolic_name W, 0 [symbolic = %W.loc9_21.1 (constants.%W)]
 // CHECK:STDOUT:   %W.as_type.loc9_50.1: type = facet_access_type %W.loc9_21.1 [symbolic = %W.as_type.loc9_50.1 (constants.%W.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %W.as_type.loc9_50.1 [symbolic = %pattern_type (constants.%pattern_type.002)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %W.as_type.loc9_50.1 [symbolic = %pattern_type (constants.%pattern_type.c13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %W.as_type.loc9_50.1 [symbolic = %require_complete (constants.%require_complete.40f)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %W.as_type.loc9_50.1 [symbolic = %require_complete (constants.%require_complete.560)]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %W.loc9_21.1, @Eats [symbolic = %Eats.lookup_impl_witness (constants.%Eats.lookup_impl_witness)]
 // CHECK:STDOUT:   %Tame.lookup_impl_witness: <witness> = lookup_impl_witness %W.loc9_21.1, @Tame [symbolic = %Tame.lookup_impl_witness (constants.%Tame.lookup_impl_witness)]
-// CHECK:STDOUT:   %facet_value.loc10_13.3: %facet_type.6ff = facet_value %W.as_type.loc9_50.1, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:   %facet_value.loc10_13.3: %facet_type.a4d = facet_value %W.as_type.loc9_50.1, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
 // CHECK:STDOUT:   %FeedTame.specific_fn.loc10_3.2: <specific function> = specific_function constants.%FeedTame, @FeedTame(%facet_value.loc10_13.3) [symbolic = %FeedTame.specific_fn.loc10_3.2 (constants.%FeedTame.specific_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%w.param: @HandleTameAnimal.%W.as_type.loc9_50.1 (%W.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %FeedTame.ref: %FeedTame.type = name_ref FeedTame, file.%FeedTame.decl [concrete = constants.%FeedTame]
 // CHECK:STDOUT:     %w.ref: @HandleTameAnimal.%W.as_type.loc9_50.1 (%W.as_type) = name_ref w, %w
-// CHECK:STDOUT:     %facet_value.loc10_13.1: %facet_type.6ff = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
-// CHECK:STDOUT:     %.loc10_13.1: %facet_type.6ff = converted constants.%W.as_type, %facet_value.loc10_13.1 [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
-// CHECK:STDOUT:     %facet_value.loc10_13.2: %facet_type.6ff = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
-// CHECK:STDOUT:     %.loc10_13.2: %facet_type.6ff = converted constants.%W.as_type, %facet_value.loc10_13.2 [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %facet_value.loc10_13.1: %facet_type.a4d = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %.loc10_13.1: %facet_type.a4d = converted constants.%W.as_type, %facet_value.loc10_13.1 [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %facet_value.loc10_13.2: %facet_type.a4d = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %.loc10_13.2: %facet_type.a4d = converted constants.%W.as_type, %facet_value.loc10_13.2 [symbolic = %facet_value.loc10_13.3 (constants.%facet_value)]
 // CHECK:STDOUT:     %FeedTame.specific_fn.loc10_3.1: <specific function> = specific_function %FeedTame.ref, @FeedTame(constants.%facet_value) [symbolic = %FeedTame.specific_fn.loc10_3.2 (constants.%FeedTame.specific_fn)]
 // CHECK:STDOUT:     %FeedTame.call: init %empty_tuple.type = call %FeedTame.specific_fn.loc10_3.1(%w.ref)
 // CHECK:STDOUT:     return
@@ -463,72 +463,72 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @FeedTame(constants.%V) {
 // CHECK:STDOUT:   %V.loc7_13.1 => constants.%V
 // CHECK:STDOUT:   %V.as_type.loc7_33.1 => constants.%V.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.760
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f4d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HandleTameAnimal(constants.%W) {
 // CHECK:STDOUT:   %W.loc9_21.1 => constants.%W
 // CHECK:STDOUT:   %W.as_type.loc9_50.1 => constants.%W.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.002
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c13
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @FeedTame(constants.%facet_value) {
 // CHECK:STDOUT:   %V.loc7_13.1 => constants.%facet_value
 // CHECK:STDOUT:   %V.as_type.loc7_33.1 => constants.%W.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.002
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c13
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.40f
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.560
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- with_blanket.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Tame.type: type = facet_type <@Tame> [concrete]
-// CHECK:STDOUT:   %Self.7ee: %Tame.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.e89: %Tame.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %A: %Animal.type = bind_symbolic_name A, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
 // CHECK:STDOUT:   %A.as_type: type = facet_access_type %A [symbolic]
-// CHECK:STDOUT:   %Eats.impl_witness.8ab: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A) [symbolic]
+// CHECK:STDOUT:   %Eats.impl_witness.3d1: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A) [symbolic]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.0c8: <bound method> = bound_method %Tame.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.6ff: type = facet_type <@Eats & @Tame> [concrete]
-// CHECK:STDOUT:   %V: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.9f3: type = pattern_type %facet_type.6ff [concrete]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.584: <bound method> = bound_method %Tame.type, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.a4d: type = facet_type <@Eats & @Tame> [concrete]
+// CHECK:STDOUT:   %V: %facet_type.a4d = bind_symbolic_name V, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.0e6: type = pattern_type %facet_type.a4d [concrete]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %pattern_type.760: type = pattern_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.f4d: type = pattern_type %V.as_type [symbolic]
 // CHECK:STDOUT:   %FeedTame2.type: type = fn_type @FeedTame2 [concrete]
 // CHECK:STDOUT:   %FeedTame2: %FeedTame2.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.940: <witness> = require_complete_type %V.as_type [symbolic]
-// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.cb0: <bound method> = bound_method %Animal.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %facet_type.65c: type = facet_type <@Animal & @Tame> [concrete]
-// CHECK:STDOUT:   %W: %facet_type.65c = bind_symbolic_name W, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6e8: type = pattern_type %facet_type.65c [concrete]
+// CHECK:STDOUT:   %require_complete.ed9: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound.54f: <bound method> = bound_method %Animal.type, %type.as.BitAndWith.impl.Op [concrete]
+// CHECK:STDOUT:   %facet_type.411: type = facet_type <@Animal & @Tame> [concrete]
+// CHECK:STDOUT:   %W: %facet_type.411 = bind_symbolic_name W, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.c65: type = pattern_type %facet_type.411 [concrete]
 // CHECK:STDOUT:   %W.as_type: type = facet_access_type %W [symbolic]
-// CHECK:STDOUT:   %pattern_type.5d1: type = pattern_type %W.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.00c: type = pattern_type %W.as_type [symbolic]
 // CHECK:STDOUT:   %HandleTameAnimal2.type: type = fn_type @HandleTameAnimal2 [concrete]
 // CHECK:STDOUT:   %HandleTameAnimal2: %HandleTameAnimal2.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.ba9: <witness> = require_complete_type %W.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.a5b: <witness> = require_complete_type %W.as_type [symbolic]
 // CHECK:STDOUT:   %Animal.lookup_impl_witness: <witness> = lookup_impl_witness %W, @Animal [symbolic]
 // CHECK:STDOUT:   %Animal.facet: %Animal.type = facet_value %W.as_type, (%Animal.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %Eats.impl_witness.e5d: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%Animal.facet) [symbolic]
+// CHECK:STDOUT:   %Eats.impl_witness.44d: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%Animal.facet) [symbolic]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %W, @Eats [symbolic]
 // CHECK:STDOUT:   %Tame.lookup_impl_witness: <witness> = lookup_impl_witness %W, @Tame [symbolic]
-// CHECK:STDOUT:   %facet_value: %facet_type.6ff = facet_value %W.as_type, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %facet_value: %facet_type.a4d = facet_value %W.as_type, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic]
 // CHECK:STDOUT:   %FeedTame2.specific_fn: <specific function> = specific_function %FeedTame2, @FeedTame2(%facet_value) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -539,8 +539,8 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -557,7 +557,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %Tame.decl: type = interface_decl @Tame [concrete = constants.%Tame.type] {} {}
 // CHECK:STDOUT:   impl_decl @A.as_type.as.Eats.impl [concrete] {
-// CHECK:STDOUT:     %A.patt: %pattern_type.3b0 = symbolic_binding_pattern A, 0 [concrete]
+// CHECK:STDOUT:     %A.patt: %pattern_type.bd6 = symbolic_binding_pattern A, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %A.ref: %Animal.type = name_ref A, %A.loc7_14.1 [symbolic = %A.loc7_14.2 (constants.%A)]
 // CHECK:STDOUT:     %A.as_type.loc7_26.1: type = facet_access_type %A.ref [symbolic = %A.as_type.loc7_26.2 (constants.%A.as_type)]
@@ -570,50 +570,50 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %A.loc7_14.1: %Animal.type = bind_symbolic_name A, 0 [symbolic = %A.loc7_14.2 (constants.%A)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Eats.impl_witness_table = impl_witness_table (), @A.as_type.as.Eats.impl [concrete]
-// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table, @A.as_type.as.Eats.impl(constants.%A) [symbolic = @A.as_type.as.Eats.impl.%Eats.impl_witness (constants.%Eats.impl_witness.8ab)]
+// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table, @A.as_type.as.Eats.impl(constants.%A) [symbolic = @A.as_type.as.Eats.impl.%Eats.impl_witness (constants.%Eats.impl_witness.3d1)]
 // CHECK:STDOUT:   %FeedTame2.decl: %FeedTame2.type = fn_decl @FeedTame2 [concrete = constants.%FeedTame2] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.9f3 = symbolic_binding_pattern V, 0 [concrete]
-// CHECK:STDOUT:     %v.patt: @FeedTame2.%pattern_type (%pattern_type.760) = binding_pattern v [concrete]
-// CHECK:STDOUT:     %v.param_patt: @FeedTame2.%pattern_type (%pattern_type.760) = value_param_pattern %v.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.0e6 = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %v.patt: @FeedTame2.%pattern_type (%pattern_type.f4d) = binding_pattern v [concrete]
+// CHECK:STDOUT:     %v.param_patt: @FeedTame2.%pattern_type (%pattern_type.f4d) = value_param_pattern %v.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc9_23.1: type = splice_block %.loc9_23.3 [concrete = constants.%facet_type.6ff] {
+// CHECK:STDOUT:     %.loc9_23.1: type = splice_block %.loc9_23.3 [concrete = constants.%facet_type.a4d] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
 // CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
-// CHECK:STDOUT:       %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Tame.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.0c8]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Tame.ref, %Eats.ref) [concrete = constants.%facet_type.6ff]
-// CHECK:STDOUT:       %.loc9_23.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.6ff]
-// CHECK:STDOUT:       %.loc9_23.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc9_23.2 [concrete = constants.%facet_type.6ff]
+// CHECK:STDOUT:       %impl.elem0: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Tame.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.584]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Tame.ref, %Eats.ref) [concrete = constants.%facet_type.a4d]
+// CHECK:STDOUT:       %.loc9_23.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.a4d]
+// CHECK:STDOUT:       %.loc9_23.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc9_23.2 [concrete = constants.%facet_type.a4d]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %V.loc9_14.2: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc9_14.1 (constants.%V)]
+// CHECK:STDOUT:     %V.loc9_14.2: %facet_type.a4d = bind_symbolic_name V, 0 [symbolic = %V.loc9_14.1 (constants.%V)]
 // CHECK:STDOUT:     %v.param: @FeedTame2.%V.as_type.loc9_34.1 (%V.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc9_34.1: type = splice_block %.loc9_34.2 [symbolic = %V.as_type.loc9_34.1 (constants.%V.as_type)] {
-// CHECK:STDOUT:       %V.ref: %facet_type.6ff = name_ref V, %V.loc9_14.2 [symbolic = %V.loc9_14.1 (constants.%V)]
+// CHECK:STDOUT:       %V.ref: %facet_type.a4d = name_ref V, %V.loc9_14.2 [symbolic = %V.loc9_14.1 (constants.%V)]
 // CHECK:STDOUT:       %V.as_type.loc9_34.2: type = facet_access_type %V.ref [symbolic = %V.as_type.loc9_34.1 (constants.%V.as_type)]
 // CHECK:STDOUT:       %.loc9_34.2: type = converted %V.ref, %V.as_type.loc9_34.2 [symbolic = %V.as_type.loc9_34.1 (constants.%V.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %v: @FeedTame2.%V.as_type.loc9_34.1 (%V.as_type) = bind_name v, %v.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleTameAnimal2.decl: %HandleTameAnimal2.type = fn_decl @HandleTameAnimal2 [concrete = constants.%HandleTameAnimal2] {
-// CHECK:STDOUT:     %W.patt: %pattern_type.6e8 = symbolic_binding_pattern W, 0 [concrete]
-// CHECK:STDOUT:     %w.patt: @HandleTameAnimal2.%pattern_type (%pattern_type.5d1) = binding_pattern w [concrete]
-// CHECK:STDOUT:     %w.param_patt: @HandleTameAnimal2.%pattern_type (%pattern_type.5d1) = value_param_pattern %w.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %W.patt: %pattern_type.c65 = symbolic_binding_pattern W, 0 [concrete]
+// CHECK:STDOUT:     %w.patt: @HandleTameAnimal2.%pattern_type (%pattern_type.00c) = binding_pattern w [concrete]
+// CHECK:STDOUT:     %w.param_patt: @HandleTameAnimal2.%pattern_type (%pattern_type.00c) = value_param_pattern %w.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc11_33.1: type = splice_block %.loc11_33.3 [concrete = constants.%facet_type.65c] {
+// CHECK:STDOUT:     %.loc11_33.1: type = splice_block %.loc11_33.3 [concrete = constants.%facet_type.411] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:       %Tame.ref: type = name_ref Tame, file.%Tame.decl [concrete = constants.%Tame.type]
-// CHECK:STDOUT:       %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Animal.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.cb0]
-// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Animal.ref, %Tame.ref) [concrete = constants.%facet_type.65c]
-// CHECK:STDOUT:       %.loc11_33.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.65c]
-// CHECK:STDOUT:       %.loc11_33.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc11_33.2 [concrete = constants.%facet_type.65c]
+// CHECK:STDOUT:       %impl.elem0: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Animal.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound.54f]
+// CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Animal.ref, %Tame.ref) [concrete = constants.%facet_type.411]
+// CHECK:STDOUT:       %.loc11_33.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type.411]
+// CHECK:STDOUT:       %.loc11_33.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc11_33.2 [concrete = constants.%facet_type.411]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %W.loc11_22.2: %facet_type.65c = bind_symbolic_name W, 0 [symbolic = %W.loc11_22.1 (constants.%W)]
+// CHECK:STDOUT:     %W.loc11_22.2: %facet_type.411 = bind_symbolic_name W, 0 [symbolic = %W.loc11_22.1 (constants.%W)]
 // CHECK:STDOUT:     %w.param: @HandleTameAnimal2.%W.as_type.loc11_44.1 (%W.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc11_44.1: type = splice_block %.loc11_44.2 [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)] {
-// CHECK:STDOUT:       %W.ref: %facet_type.65c = name_ref W, %W.loc11_22.2 [symbolic = %W.loc11_22.1 (constants.%W)]
+// CHECK:STDOUT:       %W.ref: %facet_type.411 = name_ref W, %W.loc11_22.2 [symbolic = %W.loc11_22.1 (constants.%W)]
 // CHECK:STDOUT:       %W.as_type.loc11_44.2: type = facet_access_type %W.ref [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)]
 // CHECK:STDOUT:       %.loc11_44.2: type = converted %W.ref, %W.as_type.loc11_44.2 [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)]
 // CHECK:STDOUT:     }
@@ -622,7 +622,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -630,7 +630,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -638,7 +638,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Tame {
-// CHECK:STDOUT:   %Self: %Tame.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.7ee]
+// CHECK:STDOUT:   %Self: %Tame.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e89]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -648,7 +648,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic impl @A.as_type.as.Eats.impl(%A.loc7_14.1: %Animal.type) {
 // CHECK:STDOUT:   %A.loc7_14.2: %Animal.type = bind_symbolic_name A, 0 [symbolic = %A.loc7_14.2 (constants.%A)]
 // CHECK:STDOUT:   %A.as_type.loc7_26.2: type = facet_access_type %A.loc7_14.2 [symbolic = %A.as_type.loc7_26.2 (constants.%A.as_type)]
-// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A.loc7_14.2) [symbolic = %Eats.impl_witness (constants.%Eats.impl_witness.8ab)]
+// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A.loc7_14.2) [symbolic = %Eats.impl_witness (constants.%Eats.impl_witness.3d1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -658,13 +658,13 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @FeedTame2(%V.loc9_14.2: %facet_type.6ff) {
-// CHECK:STDOUT:   %V.loc9_14.1: %facet_type.6ff = bind_symbolic_name V, 0 [symbolic = %V.loc9_14.1 (constants.%V)]
+// CHECK:STDOUT: generic fn @FeedTame2(%V.loc9_14.2: %facet_type.a4d) {
+// CHECK:STDOUT:   %V.loc9_14.1: %facet_type.a4d = bind_symbolic_name V, 0 [symbolic = %V.loc9_14.1 (constants.%V)]
 // CHECK:STDOUT:   %V.as_type.loc9_34.1: type = facet_access_type %V.loc9_14.1 [symbolic = %V.as_type.loc9_34.1 (constants.%V.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc9_34.1 [symbolic = %pattern_type (constants.%pattern_type.760)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc9_34.1 [symbolic = %pattern_type (constants.%pattern_type.f4d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %V.as_type.loc9_34.1 [symbolic = %require_complete (constants.%require_complete.940)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %V.as_type.loc9_34.1 [symbolic = %require_complete (constants.%require_complete.ed9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%v.param: @FeedTame2.%V.as_type.loc9_34.1 (%V.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -672,18 +672,18 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HandleTameAnimal2(%W.loc11_22.2: %facet_type.65c) {
-// CHECK:STDOUT:   %W.loc11_22.1: %facet_type.65c = bind_symbolic_name W, 0 [symbolic = %W.loc11_22.1 (constants.%W)]
+// CHECK:STDOUT: generic fn @HandleTameAnimal2(%W.loc11_22.2: %facet_type.411) {
+// CHECK:STDOUT:   %W.loc11_22.1: %facet_type.411 = bind_symbolic_name W, 0 [symbolic = %W.loc11_22.1 (constants.%W)]
 // CHECK:STDOUT:   %W.as_type.loc11_44.1: type = facet_access_type %W.loc11_22.1 [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %W.as_type.loc11_44.1 [symbolic = %pattern_type (constants.%pattern_type.5d1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %W.as_type.loc11_44.1 [symbolic = %pattern_type (constants.%pattern_type.00c)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %W.as_type.loc11_44.1 [symbolic = %require_complete (constants.%require_complete.ba9)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %W.as_type.loc11_44.1 [symbolic = %require_complete (constants.%require_complete.a5b)]
 // CHECK:STDOUT:   %Animal.lookup_impl_witness: <witness> = lookup_impl_witness %W.loc11_22.1, @Animal [symbolic = %Animal.lookup_impl_witness (constants.%Animal.lookup_impl_witness)]
 // CHECK:STDOUT:   %Animal.facet.loc12_14.3: %Animal.type = facet_value %W.as_type.loc11_44.1, (%Animal.lookup_impl_witness) [symbolic = %Animal.facet.loc12_14.3 (constants.%Animal.facet)]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %W.loc11_22.1, @Eats [symbolic = %Eats.lookup_impl_witness (constants.%Eats.lookup_impl_witness)]
 // CHECK:STDOUT:   %Tame.lookup_impl_witness: <witness> = lookup_impl_witness %W.loc11_22.1, @Tame [symbolic = %Tame.lookup_impl_witness (constants.%Tame.lookup_impl_witness)]
-// CHECK:STDOUT:   %facet_value.loc12_14.3: %facet_type.6ff = facet_value %W.as_type.loc11_44.1, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
+// CHECK:STDOUT:   %facet_value.loc12_14.3: %facet_type.a4d = facet_value %W.as_type.loc11_44.1, (%Eats.lookup_impl_witness, %Tame.lookup_impl_witness) [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
 // CHECK:STDOUT:   %FeedTame2.specific_fn.loc12_3.2: <specific function> = specific_function constants.%FeedTame2, @FeedTame2(%facet_value.loc12_14.3) [symbolic = %FeedTame2.specific_fn.loc12_3.2 (constants.%FeedTame2.specific_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%w.param: @HandleTameAnimal2.%W.as_type.loc11_44.1 (%W.as_type)) {
@@ -694,14 +694,14 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %.loc12_14.1: type = converted constants.%W, %W.as_type.loc12_14.1 [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)]
 // CHECK:STDOUT:     %Animal.facet.loc12_14.1: %Animal.type = facet_value constants.%W.as_type, (constants.%Animal.lookup_impl_witness) [symbolic = %Animal.facet.loc12_14.3 (constants.%Animal.facet)]
 // CHECK:STDOUT:     %.loc12_14.2: %Animal.type = converted %.loc12_14.1, %Animal.facet.loc12_14.1 [symbolic = %Animal.facet.loc12_14.3 (constants.%Animal.facet)]
-// CHECK:STDOUT:     %facet_value.loc12_14.1: %facet_type.6ff = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
-// CHECK:STDOUT:     %.loc12_14.3: %facet_type.6ff = converted constants.%W.as_type, %facet_value.loc12_14.1 [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %facet_value.loc12_14.1: %facet_type.a4d = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %.loc12_14.3: %facet_type.a4d = converted constants.%W.as_type, %facet_value.loc12_14.1 [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
 // CHECK:STDOUT:     %W.as_type.loc12_14.2: type = facet_access_type constants.%W [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)]
 // CHECK:STDOUT:     %.loc12_14.4: type = converted constants.%W, %W.as_type.loc12_14.2 [symbolic = %W.as_type.loc11_44.1 (constants.%W.as_type)]
 // CHECK:STDOUT:     %Animal.facet.loc12_14.2: %Animal.type = facet_value constants.%W.as_type, (constants.%Animal.lookup_impl_witness) [symbolic = %Animal.facet.loc12_14.3 (constants.%Animal.facet)]
 // CHECK:STDOUT:     %.loc12_14.5: %Animal.type = converted %.loc12_14.4, %Animal.facet.loc12_14.2 [symbolic = %Animal.facet.loc12_14.3 (constants.%Animal.facet)]
-// CHECK:STDOUT:     %facet_value.loc12_14.2: %facet_type.6ff = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
-// CHECK:STDOUT:     %.loc12_14.6: %facet_type.6ff = converted constants.%W.as_type, %facet_value.loc12_14.2 [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %facet_value.loc12_14.2: %facet_type.a4d = facet_value constants.%W.as_type, (constants.%Eats.lookup_impl_witness, constants.%Tame.lookup_impl_witness) [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
+// CHECK:STDOUT:     %.loc12_14.6: %facet_type.a4d = converted constants.%W.as_type, %facet_value.loc12_14.2 [symbolic = %facet_value.loc12_14.3 (constants.%facet_value)]
 // CHECK:STDOUT:     %FeedTame2.specific_fn.loc12_3.1: <specific function> = specific_function %FeedTame2.ref, @FeedTame2(constants.%facet_value) [symbolic = %FeedTame2.specific_fn.loc12_3.2 (constants.%FeedTame2.specific_fn)]
 // CHECK:STDOUT:     %FeedTame2.call: init %empty_tuple.type = call %FeedTame2.specific_fn.loc12_3.1(%w.ref)
 // CHECK:STDOUT:     return
@@ -711,25 +711,25 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @A.as_type.as.Eats.impl(constants.%A) {
 // CHECK:STDOUT:   %A.loc7_14.2 => constants.%A
 // CHECK:STDOUT:   %A.as_type.loc7_26.2 => constants.%A.as_type
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.8ab
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.3d1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @FeedTame2(constants.%V) {
 // CHECK:STDOUT:   %V.loc9_14.1 => constants.%V
 // CHECK:STDOUT:   %V.as_type.loc9_34.1 => constants.%V.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.760
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f4d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HandleTameAnimal2(constants.%W) {
 // CHECK:STDOUT:   %W.loc11_22.1 => constants.%W
 // CHECK:STDOUT:   %W.as_type.loc11_44.1 => constants.%W.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.5d1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.00c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as_type.as.Eats.impl(constants.%Animal.facet) {
 // CHECK:STDOUT:   %A.loc7_14.2 => constants.%Animal.facet
 // CHECK:STDOUT:   %A.as_type.loc7_26.2 => constants.%W.as_type
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.e5d
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.44d
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
@@ -737,10 +737,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @FeedTame2(constants.%facet_value) {
 // CHECK:STDOUT:   %V.loc9_14.1 => constants.%facet_value
 // CHECK:STDOUT:   %V.as_type.loc9_34.1 => constants.%W.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.5d1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.00c
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.ba9
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.a5b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- equivalent.carbon
@@ -750,21 +750,21 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %A.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a2b: type = pattern_type %A.type [concrete]
+// CHECK:STDOUT:   %pattern_type.a6e: type = pattern_type %A.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.f9844e.1: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.6c35e2.1: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %TakesA.type: type = fn_type @TakesA [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TakesA: %TakesA.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.cf45b7.1: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %.Self.3ca: %A.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.3ca [symbolic_self]
+// CHECK:STDOUT:   %require_complete.cb17be.1: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %.Self.e6d: %A.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.e6d [symbolic_self]
 // CHECK:STDOUT:   %U: %A.type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
-// CHECK:STDOUT:   %pattern_type.f9844e.2: type = pattern_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.6c35e2.2: type = pattern_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %WithExtraWhere.type: type = fn_type @WithExtraWhere [concrete]
 // CHECK:STDOUT:   %WithExtraWhere: %WithExtraWhere.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.cf45b7.2: <witness> = require_complete_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.cb17be.2: <witness> = require_complete_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %TakesA.specific_fn: <specific function> = specific_function %TakesA, @TakesA(%U) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -785,9 +785,9 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %A.decl: type = interface_decl @A [concrete = constants.%A.type] {} {}
 // CHECK:STDOUT:   %TakesA.decl: %TakesA.type = fn_decl @TakesA [concrete = constants.%TakesA] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a2b = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @TakesA.%pattern_type (%pattern_type.f9844e.1) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @TakesA.%pattern_type (%pattern_type.f9844e.1) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.a6e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @TakesA.%pattern_type (%pattern_type.6c35e2.1) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @TakesA.%pattern_type (%pattern_type.6c35e2.1) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc7_15: type = splice_block %A.ref [concrete = constants.%A.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
@@ -803,15 +803,15 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %x: @TakesA.%T.as_type.loc7_21.1 (%T.as_type) = bind_name x, %x.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %WithExtraWhere.decl: %WithExtraWhere.type = fn_decl @WithExtraWhere [concrete = constants.%WithExtraWhere] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.a2b = symbolic_binding_pattern U, 0 [concrete]
-// CHECK:STDOUT:     %y.patt: @WithExtraWhere.%pattern_type (%pattern_type.f9844e.2) = binding_pattern y [concrete]
-// CHECK:STDOUT:     %y.param_patt: @WithExtraWhere.%pattern_type (%pattern_type.f9844e.2) = value_param_pattern %y.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.a6e = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %y.patt: @WithExtraWhere.%pattern_type (%pattern_type.6c35e2.2) = binding_pattern y [concrete]
+// CHECK:STDOUT:     %y.param_patt: @WithExtraWhere.%pattern_type (%pattern_type.6c35e2.2) = value_param_pattern %y.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc9_25.1: type = splice_block %.loc9_25.2 [concrete = constants.%A.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:       %.Self.2: %A.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.3ca]
-// CHECK:STDOUT:       %.Self.ref: %A.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.3ca]
+// CHECK:STDOUT:       %.Self.2: %A.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.e6d]
+// CHECK:STDOUT:       %.Self.ref: %A.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.e6d]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc9_31: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc9_25.2: type = where_expr %.Self.2 [concrete = constants.%A.type] {
@@ -841,10 +841,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic fn @TakesA(%T.loc7_11.2: %A.type) {
 // CHECK:STDOUT:   %T.loc7_11.1: %A.type = bind_symbolic_name T, 0 [symbolic = %T.loc7_11.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc7_21.1: type = facet_access_type %T.loc7_11.1 [symbolic = %T.as_type.loc7_21.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc7_21.1 [symbolic = %pattern_type (constants.%pattern_type.f9844e.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc7_21.1 [symbolic = %pattern_type (constants.%pattern_type.6c35e2.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc7_21.1 [symbolic = %require_complete (constants.%require_complete.cf45b7.1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc7_21.1 [symbolic = %require_complete (constants.%require_complete.cb17be.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @TakesA.%T.as_type.loc7_21.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -855,10 +855,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic fn @WithExtraWhere(%U.loc9_19.2: %A.type) {
 // CHECK:STDOUT:   %U.loc9_19.1: %A.type = bind_symbolic_name U, 0 [symbolic = %U.loc9_19.1 (constants.%U)]
 // CHECK:STDOUT:   %U.as_type.loc9_52.1: type = facet_access_type %U.loc9_19.1 [symbolic = %U.as_type.loc9_52.1 (constants.%U.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc9_52.1 [symbolic = %pattern_type (constants.%pattern_type.f9844e.2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc9_52.1 [symbolic = %pattern_type (constants.%pattern_type.6c35e2.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc9_52.1 [symbolic = %require_complete (constants.%require_complete.cf45b7.2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc9_52.1 [symbolic = %require_complete (constants.%require_complete.cb17be.2)]
 // CHECK:STDOUT:   %TakesA.specific_fn.loc10_3.2: <specific function> = specific_function constants.%TakesA, @TakesA(%U.loc9_19.1) [symbolic = %TakesA.specific_fn.loc10_3.2 (constants.%TakesA.specific_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%y.param: @WithExtraWhere.%U.as_type.loc9_52.1 (%U.as_type)) {
@@ -876,22 +876,22 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @TakesA(constants.%T) {
 // CHECK:STDOUT:   %T.loc7_11.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc7_21.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f9844e.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6c35e2.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @WithExtraWhere(constants.%U) {
 // CHECK:STDOUT:   %U.loc9_19.1 => constants.%U
 // CHECK:STDOUT:   %U.as_type.loc9_52.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f9844e.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6c35e2.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @TakesA(constants.%U) {
 // CHECK:STDOUT:   %T.loc7_11.1 => constants.%U
 // CHECK:STDOUT:   %T.as_type.loc7_21.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f9844e.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6c35e2.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.cf45b7.2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.cb17be.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- no_interfaces_success.carbon
@@ -907,12 +907,12 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %type: type = facet_type <type> [concrete]
 // CHECK:STDOUT:   %U: %type = bind_symbolic_name U, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.d06: type = pattern_type %type [concrete]
+// CHECK:STDOUT:   %pattern_type.9a5: type = pattern_type %type [concrete]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
-// CHECK:STDOUT:   %pattern_type.772: type = pattern_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.fa6: type = pattern_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %CallsWithExtraWhere.type: type = fn_type @CallsWithExtraWhere [concrete]
 // CHECK:STDOUT:   %CallsWithExtraWhere: %CallsWithExtraWhere.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.5eb: <witness> = require_complete_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.f46: <witness> = require_complete_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %TakesTypeDeduced.specific_fn: <specific function> = specific_function %TakesTypeDeduced, @TakesTypeDeduced(%U.as_type) [symbolic]
 // CHECK:STDOUT:   %TakesTypeExplicit.type: type = fn_type @TakesTypeExplicit [concrete]
 // CHECK:STDOUT:   %TakesTypeExplicit: %TakesTypeExplicit.type = struct_value () [concrete]
@@ -949,9 +949,9 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %x: @TakesTypeDeduced.%T.loc3_21.1 (%T) = bind_name x, %x.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %CallsWithExtraWhere.decl: %CallsWithExtraWhere.type = fn_decl @CallsWithExtraWhere [concrete = constants.%CallsWithExtraWhere] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.d06 = symbolic_binding_pattern U, 0 [concrete]
-// CHECK:STDOUT:     %y.patt: @CallsWithExtraWhere.%pattern_type (%pattern_type.772) = binding_pattern y [concrete]
-// CHECK:STDOUT:     %y.param_patt: @CallsWithExtraWhere.%pattern_type (%pattern_type.772) = value_param_pattern %y.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.9a5 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %y.patt: @CallsWithExtraWhere.%pattern_type (%pattern_type.fa6) = binding_pattern y [concrete]
+// CHECK:STDOUT:     %y.param_patt: @CallsWithExtraWhere.%pattern_type (%pattern_type.fa6) = value_param_pattern %y.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc4_33.1: type = splice_block %.loc4_33.2 [concrete = constants.%type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -978,7 +978,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %T.loc8_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_22.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %CallsWithExtraWhereExplicit.decl: %CallsWithExtraWhereExplicit.type = fn_decl @CallsWithExtraWhereExplicit [concrete = constants.%CallsWithExtraWhereExplicit] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.d06 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.9a5 = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc9_41.1: type = splice_block %.loc9_41.2 [concrete = constants.%type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1009,10 +1009,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic fn @CallsWithExtraWhere(%U.loc4_24.2: %type) {
 // CHECK:STDOUT:   %U.loc4_24.1: %type = bind_symbolic_name U, 0 [symbolic = %U.loc4_24.1 (constants.%U)]
 // CHECK:STDOUT:   %U.as_type.loc4_60.1: type = facet_access_type %U.loc4_24.1 [symbolic = %U.as_type.loc4_60.1 (constants.%U.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc4_60.1 [symbolic = %pattern_type (constants.%pattern_type.772)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc4_60.1 [symbolic = %pattern_type (constants.%pattern_type.fa6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc4_60.1 [symbolic = %require_complete (constants.%require_complete.5eb)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc4_60.1 [symbolic = %require_complete (constants.%require_complete.f46)]
 // CHECK:STDOUT:   %TakesTypeDeduced.specific_fn.loc5_3.2: <specific function> = specific_function constants.%TakesTypeDeduced, @TakesTypeDeduced(%U.as_type.loc4_60.1) [symbolic = %TakesTypeDeduced.specific_fn.loc5_3.2 (constants.%TakesTypeDeduced.specific_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%y.param: @CallsWithExtraWhere.%U.as_type.loc4_60.1 (%U.as_type)) {
@@ -1063,15 +1063,15 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @CallsWithExtraWhere(constants.%U) {
 // CHECK:STDOUT:   %U.loc4_24.1 => constants.%U
 // CHECK:STDOUT:   %U.as_type.loc4_60.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.772
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.fa6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @TakesTypeDeduced(constants.%U.as_type) {
 // CHECK:STDOUT:   %T.loc3_21.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.772
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.fa6
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.5eb
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.f46
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @TakesTypeExplicit(constants.%T) {
@@ -1094,13 +1094,13 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %type: type = facet_type <type> [concrete]
 // CHECK:STDOUT:   %T: %type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.d06: type = pattern_type %type [concrete]
+// CHECK:STDOUT:   %pattern_type.9a5: type = pattern_type %type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.772: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.fa6: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %TakesExtraWhereDeduced.type: type = fn_type @TakesExtraWhereDeduced [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TakesExtraWhereDeduced: %TakesExtraWhereDeduced.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.5eb: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.f46: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %U [symbolic]
@@ -1133,9 +1133,9 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %TakesExtraWhereDeduced.decl: %TakesExtraWhereDeduced.type = fn_decl @TakesExtraWhereDeduced [concrete = constants.%TakesExtraWhereDeduced] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.d06 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @TakesExtraWhereDeduced.%pattern_type (%pattern_type.772) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @TakesExtraWhereDeduced.%pattern_type (%pattern_type.772) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.9a5 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @TakesExtraWhereDeduced.%pattern_type (%pattern_type.fa6) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @TakesExtraWhereDeduced.%pattern_type (%pattern_type.fa6) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc3_36.1: type = splice_block %.loc3_36.2 [concrete = constants.%type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1167,7 +1167,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT:     %y: @CallsWithType.%U.loc4_18.1 (%U) = bind_name y, %y.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %TakesExtraWhereExplicit.decl: %TakesExtraWhereExplicit.type = fn_decl @TakesExtraWhereExplicit [concrete = constants.%TakesExtraWhereExplicit] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.d06 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.9a5 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc8_37.1: type = splice_block %.loc8_37.2 [concrete = constants.%type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1191,10 +1191,10 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: generic fn @TakesExtraWhereDeduced(%T.loc3_27.2: %type) {
 // CHECK:STDOUT:   %T.loc3_27.1: %type = bind_symbolic_name T, 0 [symbolic = %T.loc3_27.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc3_63.1: type = facet_access_type %T.loc3_27.1 [symbolic = %T.as_type.loc3_63.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc3_63.1 [symbolic = %pattern_type (constants.%pattern_type.772)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc3_63.1 [symbolic = %pattern_type (constants.%pattern_type.fa6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc3_63.1 [symbolic = %require_complete (constants.%require_complete.5eb)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc3_63.1 [symbolic = %require_complete (constants.%require_complete.f46)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @TakesExtraWhereDeduced.%T.as_type.loc3_63.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -1258,7 +1258,7 @@ fn CallsWithTypeExplicit(U:! type) {
 // CHECK:STDOUT: specific @TakesExtraWhereDeduced(constants.%T) {
 // CHECK:STDOUT:   %T.loc3_27.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc3_63.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.772
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.fa6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallsWithType(constants.%U) {
diff --git a/toolchain/check/testdata/facet/convert_facet_value_value_to_blanket_impl.carbon b/toolchain/check/testdata/facet/convert_facet_value_value_to_blanket_impl.carbon
index d778ab890b1d..51e02349de3c 100644
--- a/toolchain/check/testdata/facet/convert_facet_value_value_to_blanket_impl.carbon
+++ b/toolchain/check/testdata/facet/convert_facet_value_value_to_blanket_impl.carbon
@@ -25,31 +25,31 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %A: %Animal.type = bind_symbolic_name A, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
 // CHECK:STDOUT:   %A.as_type: type = facet_access_type %A [symbolic]
-// CHECK:STDOUT:   %Eats.impl_witness.8abeaf.1: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A) [symbolic]
-// CHECK:STDOUT:   %T.1b5: %Eats.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a05: type = pattern_type %Eats.type [concrete]
-// CHECK:STDOUT:   %T.as_type.27d: type = facet_access_type %T.1b5 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b4: type = pattern_type %T.as_type.27d [symbolic]
+// CHECK:STDOUT:   %Eats.impl_witness.3d1207.1: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A) [symbolic]
+// CHECK:STDOUT:   %T.3c7: %Eats.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.08e: type = pattern_type %Eats.type [concrete]
+// CHECK:STDOUT:   %T.as_type.844: type = facet_access_type %T.3c7 [symbolic]
+// CHECK:STDOUT:   %pattern_type.de8: type = pattern_type %T.as_type.844 [symbolic]
 // CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.c75: <witness> = require_complete_type %T.as_type.27d [symbolic]
-// CHECK:STDOUT:   %T.fd4: %Animal.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.as_type.2ad: type = facet_access_type %T.fd4 [symbolic]
-// CHECK:STDOUT:   %pattern_type.36a: type = pattern_type %T.as_type.2ad [symbolic]
+// CHECK:STDOUT:   %require_complete.a45: <witness> = require_complete_type %T.as_type.844 [symbolic]
+// CHECK:STDOUT:   %T.a8c: %Animal.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %T.as_type.b5e: type = facet_access_type %T.a8c [symbolic]
+// CHECK:STDOUT:   %pattern_type.28a: type = pattern_type %T.as_type.b5e [symbolic]
 // CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
 // CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.234: <witness> = require_complete_type %T.as_type.2ad [symbolic]
-// CHECK:STDOUT:   %Eats.impl_witness.8abeaf.2: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%T.fd4) [symbolic]
-// CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %T.fd4, @Eats [symbolic]
-// CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %T.as_type.2ad, (%Eats.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %require_complete.29e: <witness> = require_complete_type %T.as_type.b5e [symbolic]
+// CHECK:STDOUT:   %Eats.impl_witness.3d1207.2: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%T.a8c) [symbolic]
+// CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %T.a8c, @Eats [symbolic]
+// CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %T.as_type.b5e, (%Eats.lookup_impl_witness) [symbolic]
 // CHECK:STDOUT:   %Feed.specific_fn: <specific function> = specific_function %Feed, @Feed(%Eats.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -72,7 +72,7 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   impl_decl @A.as_type.as.Eats.impl [concrete] {
-// CHECK:STDOUT:     %A.patt: %pattern_type.3b0 = symbolic_binding_pattern A, 0 [concrete]
+// CHECK:STDOUT:     %A.patt: %pattern_type.bd6 = symbolic_binding_pattern A, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %A.ref: %Animal.type = name_ref A, %A.loc18_14.1 [symbolic = %A.loc18_14.2 (constants.%A)]
 // CHECK:STDOUT:     %A.as_type.loc18_26.1: type = facet_access_type %A.ref [symbolic = %A.as_type.loc18_26.2 (constants.%A.as_type)]
@@ -85,47 +85,47 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT:     %A.loc18_14.1: %Animal.type = bind_symbolic_name A, 0 [symbolic = %A.loc18_14.2 (constants.%A)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Eats.impl_witness_table = impl_witness_table (), @A.as_type.as.Eats.impl [concrete]
-// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table, @A.as_type.as.Eats.impl(constants.%A) [symbolic = @A.as_type.as.Eats.impl.%Eats.impl_witness (constants.%Eats.impl_witness.8abeaf.1)]
+// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table, @A.as_type.as.Eats.impl(constants.%A) [symbolic = @A.as_type.as.Eats.impl.%Eats.impl_witness (constants.%Eats.impl_witness.3d1207.1)]
 // CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a05 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type (%pattern_type.2b4) = binding_pattern e [concrete]
-// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type (%pattern_type.2b4) = value_param_pattern %e.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.08e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type (%pattern_type.de8) = binding_pattern e [concrete]
+// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type (%pattern_type.de8) = value_param_pattern %e.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc20_13: type = splice_block %Eats.ref [concrete = constants.%Eats.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc20_9.2: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc20_9.1 (constants.%T.1b5)]
-// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc20_22.1 (%T.as_type.27d) = value_param call_param0
-// CHECK:STDOUT:     %.loc20_22.1: type = splice_block %.loc20_22.2 [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.27d)] {
-// CHECK:STDOUT:       %T.ref: %Eats.type = name_ref T, %T.loc20_9.2 [symbolic = %T.loc20_9.1 (constants.%T.1b5)]
-// CHECK:STDOUT:       %T.as_type.loc20_22.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:       %.loc20_22.2: type = converted %T.ref, %T.as_type.loc20_22.2 [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.27d)]
+// CHECK:STDOUT:     %T.loc20_9.2: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc20_9.1 (constants.%T.3c7)]
+// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc20_22.1 (%T.as_type.844) = value_param call_param0
+// CHECK:STDOUT:     %.loc20_22.1: type = splice_block %.loc20_22.2 [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.844)] {
+// CHECK:STDOUT:       %T.ref: %Eats.type = name_ref T, %T.loc20_9.2 [symbolic = %T.loc20_9.1 (constants.%T.3c7)]
+// CHECK:STDOUT:       %T.as_type.loc20_22.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.844)]
+// CHECK:STDOUT:       %.loc20_22.2: type = converted %T.ref, %T.as_type.loc20_22.2 [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.844)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc20_22.1 (%T.as_type.27d) = bind_name e, %e.param
+// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc20_22.1 (%T.as_type.844) = bind_name e, %e.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.36a) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.36a) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.28a) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.28a) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc22_21: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc22_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc22_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.2ad) = value_param call_param0
-// CHECK:STDOUT:     %.loc22_32.1: type = splice_block %.loc22_32.2 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)] {
-// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc22_17.2 [symbolic = %T.loc22_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:       %T.as_type.loc22_32.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:       %.loc22_32.2: type = converted %T.ref, %T.as_type.loc22_32.2 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
+// CHECK:STDOUT:     %T.loc22_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc22_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.b5e) = value_param call_param0
+// CHECK:STDOUT:     %.loc22_32.1: type = splice_block %.loc22_32.2 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)] {
+// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc22_17.2 [symbolic = %T.loc22_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:       %T.as_type.loc22_32.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:       %.loc22_32.2: type = converted %T.ref, %T.as_type.loc22_32.2 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.2ad) = bind_name a, %a.param
+// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.b5e) = bind_name a, %a.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -133,7 +133,7 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -143,7 +143,7 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT: generic impl @A.as_type.as.Eats.impl(%A.loc18_14.1: %Animal.type) {
 // CHECK:STDOUT:   %A.loc18_14.2: %Animal.type = bind_symbolic_name A, 0 [symbolic = %A.loc18_14.2 (constants.%A)]
 // CHECK:STDOUT:   %A.as_type.loc18_26.2: type = facet_access_type %A.loc18_14.2 [symbolic = %A.as_type.loc18_26.2 (constants.%A.as_type)]
-// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A.loc18_14.2) [symbolic = %Eats.impl_witness (constants.%Eats.impl_witness.8abeaf.1)]
+// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table, @A.as_type.as.Eats.impl(%A.loc18_14.2) [symbolic = %Eats.impl_witness (constants.%Eats.impl_witness.3d1207.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -154,44 +154,44 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Feed(%T.loc20_9.2: %Eats.type) {
-// CHECK:STDOUT:   %T.loc20_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc20_9.1 (constants.%T.1b5)]
-// CHECK:STDOUT:   %T.as_type.loc20_22.1: type = facet_access_type %T.loc20_9.1 [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc20_22.1 [symbolic = %pattern_type (constants.%pattern_type.2b4)]
+// CHECK:STDOUT:   %T.loc20_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc20_9.1 (constants.%T.3c7)]
+// CHECK:STDOUT:   %T.as_type.loc20_22.1: type = facet_access_type %T.loc20_9.1 [symbolic = %T.as_type.loc20_22.1 (constants.%T.as_type.844)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc20_22.1 [symbolic = %pattern_type (constants.%pattern_type.de8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc20_22.1 [symbolic = %require_complete (constants.%require_complete.c75)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc20_22.1 [symbolic = %require_complete (constants.%require_complete.a45)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc20_22.1 (%T.as_type.27d)) {
+// CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc20_22.1 (%T.as_type.844)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HandleAnimal(%T.loc22_17.2: %Animal.type) {
-// CHECK:STDOUT:   %T.loc22_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc22_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:   %T.as_type.loc22_32.1: type = facet_access_type %T.loc22_17.1 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc22_32.1 [symbolic = %pattern_type (constants.%pattern_type.36a)]
+// CHECK:STDOUT:   %T.loc22_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc22_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:   %T.as_type.loc22_32.1: type = facet_access_type %T.loc22_17.1 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc22_32.1 [symbolic = %pattern_type (constants.%pattern_type.28a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc22_32.1 [symbolic = %require_complete (constants.%require_complete.234)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc22_32.1 [symbolic = %require_complete (constants.%require_complete.29e)]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc22_17.1, @Eats [symbolic = %Eats.lookup_impl_witness (constants.%Eats.lookup_impl_witness)]
 // CHECK:STDOUT:   %Eats.facet.loc22_43.3: %Eats.type = facet_value %T.as_type.loc22_32.1, (%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
 // CHECK:STDOUT:   %Feed.specific_fn.loc22_37.2: <specific function> = specific_function constants.%Feed, @Feed(%Eats.facet.loc22_43.3) [symbolic = %Feed.specific_fn.loc22_37.2 (constants.%Feed.specific_fn)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.2ad)) {
+// CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.b5e)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %Feed.ref: %Feed.type = name_ref Feed, file.%Feed.decl [concrete = constants.%Feed]
-// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.2ad) = name_ref a, %a
-// CHECK:STDOUT:     %T.as_type.loc22_43.1: type = facet_access_type constants.%T.fd4 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc22_43.1: type = converted constants.%T.fd4, %T.as_type.loc22_43.1 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc22_43.2: %Animal.type = converted %.loc22_43.1, constants.%T.fd4 [symbolic = %T.loc22_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %Eats.facet.loc22_43.1: %Eats.type = facet_value constants.%T.as_type.2ad, (constants.%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
-// CHECK:STDOUT:     %.loc22_43.3: %Eats.type = converted constants.%T.as_type.2ad, %Eats.facet.loc22_43.1 [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
-// CHECK:STDOUT:     %T.as_type.loc22_43.2: type = facet_access_type constants.%T.fd4 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc22_43.4: type = converted constants.%T.fd4, %T.as_type.loc22_43.2 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc22_43.5: %Animal.type = converted %.loc22_43.4, constants.%T.fd4 [symbolic = %T.loc22_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %Eats.facet.loc22_43.2: %Eats.type = facet_value constants.%T.as_type.2ad, (constants.%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
-// CHECK:STDOUT:     %.loc22_43.6: %Eats.type = converted constants.%T.as_type.2ad, %Eats.facet.loc22_43.2 [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc22_32.1 (%T.as_type.b5e) = name_ref a, %a
+// CHECK:STDOUT:     %T.as_type.loc22_43.1: type = facet_access_type constants.%T.a8c [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc22_43.1: type = converted constants.%T.a8c, %T.as_type.loc22_43.1 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc22_43.2: %Animal.type = converted %.loc22_43.1, constants.%T.a8c [symbolic = %T.loc22_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %Eats.facet.loc22_43.1: %Eats.type = facet_value constants.%T.as_type.b5e, (constants.%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %.loc22_43.3: %Eats.type = converted constants.%T.as_type.b5e, %Eats.facet.loc22_43.1 [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %T.as_type.loc22_43.2: type = facet_access_type constants.%T.a8c [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc22_43.4: type = converted constants.%T.a8c, %T.as_type.loc22_43.2 [symbolic = %T.as_type.loc22_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc22_43.5: %Animal.type = converted %.loc22_43.4, constants.%T.a8c [symbolic = %T.loc22_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %Eats.facet.loc22_43.2: %Eats.type = facet_value constants.%T.as_type.b5e, (constants.%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
+// CHECK:STDOUT:     %.loc22_43.6: %Eats.type = converted constants.%T.as_type.b5e, %Eats.facet.loc22_43.2 [symbolic = %Eats.facet.loc22_43.3 (constants.%Eats.facet)]
 // CHECK:STDOUT:     %Feed.specific_fn.loc22_37.1: <specific function> = specific_function %Feed.ref, @Feed(constants.%Eats.facet) [symbolic = %Feed.specific_fn.loc22_37.2 (constants.%Feed.specific_fn)]
 // CHECK:STDOUT:     %Feed.call: init %empty_tuple.type = call %Feed.specific_fn.loc22_37.1(%a.ref)
 // CHECK:STDOUT:     return
@@ -201,35 +201,35 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT: specific @A.as_type.as.Eats.impl(constants.%A) {
 // CHECK:STDOUT:   %A.loc18_14.2 => constants.%A
 // CHECK:STDOUT:   %A.as_type.loc18_26.2 => constants.%A.as_type
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.8abeaf.1
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.3d1207.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Feed(constants.%T.1b5) {
-// CHECK:STDOUT:   %T.loc20_9.1 => constants.%T.1b5
-// CHECK:STDOUT:   %T.as_type.loc20_22.1 => constants.%T.as_type.27d
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2b4
+// CHECK:STDOUT: specific @Feed(constants.%T.3c7) {
+// CHECK:STDOUT:   %T.loc20_9.1 => constants.%T.3c7
+// CHECK:STDOUT:   %T.as_type.loc20_22.1 => constants.%T.as_type.844
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.de8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HandleAnimal(constants.%T.fd4) {
-// CHECK:STDOUT:   %T.loc22_17.1 => constants.%T.fd4
-// CHECK:STDOUT:   %T.as_type.loc22_32.1 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.36a
+// CHECK:STDOUT: specific @HandleAnimal(constants.%T.a8c) {
+// CHECK:STDOUT:   %T.loc22_17.1 => constants.%T.a8c
+// CHECK:STDOUT:   %T.as_type.loc22_32.1 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.as_type.as.Eats.impl(constants.%T.fd4) {
-// CHECK:STDOUT:   %A.loc18_14.2 => constants.%T.fd4
-// CHECK:STDOUT:   %A.as_type.loc18_26.2 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.8abeaf.2
+// CHECK:STDOUT: specific @A.as_type.as.Eats.impl(constants.%T.a8c) {
+// CHECK:STDOUT:   %A.loc18_14.2 => constants.%T.a8c
+// CHECK:STDOUT:   %A.as_type.loc18_26.2 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.3d1207.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Feed(constants.%Eats.facet) {
 // CHECK:STDOUT:   %T.loc20_9.1 => constants.%Eats.facet
-// CHECK:STDOUT:   %T.as_type.loc20_22.1 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.36a
+// CHECK:STDOUT:   %T.as_type.loc20_22.1 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28a
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.234
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.29e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/facet/convert_facet_value_value_to_generic_facet_value_value.carbon b/toolchain/check/testdata/facet/convert_facet_value_value_to_generic_facet_value_value.carbon
index b55061f6c7da..1a570a56d4f5 100644
--- a/toolchain/check/testdata/facet/convert_facet_value_value_to_generic_facet_value_value.carbon
+++ b/toolchain/check/testdata/facet/convert_facet_value_value_to_generic_facet_value_value.carbon
@@ -39,11 +39,11 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Edible.type: type = facet_type <@Edible> [concrete]
-// CHECK:STDOUT:   %Self.9af: %Edible.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3cd: %Edible.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Grass: type = class_type @Grass [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.826: <witness> = impl_witness @Grass.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.215: <witness> = impl_witness @Grass.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.2bd: type = ptr_type %Grass [concrete]
 // CHECK:STDOUT:   %pattern_type.4f0: type = pattern_type %ptr.2bd [concrete]
 // CHECK:STDOUT:   %Grass.as.Destroy.impl.Op.type: type = fn_type @Grass.as.Destroy.impl.Op [concrete]
@@ -53,59 +53,59 @@ fn F() {
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Edible.impl_witness: <witness> = impl_witness file.%Edible.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %Food.8b3: type = bind_symbolic_name Food, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Eats.type.ba2: type = generic_interface_type @Eats [concrete]
 // CHECK:STDOUT:   %Eats.generic: %Eats.type.ba2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Eats.type.6c0: type = facet_type <@Eats, @Eats(%Food.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.4eb: %Eats.type.6c0 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %T.fd4: %Animal.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %Eats.type.404: type = facet_type <@Eats, @Eats(%Food.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.563: %Eats.type.404 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %T.a8c: %Animal.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
 // CHECK:STDOUT:   %U: %Edible.type = bind_symbolic_name U, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.939: type = pattern_type %Edible.type [concrete]
-// CHECK:STDOUT:   %T.as_type.2ad: type = facet_access_type %T.fd4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.09a: type = pattern_type %Edible.type [concrete]
+// CHECK:STDOUT:   %T.as_type.b5e: type = facet_access_type %T.a8c [symbolic]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
-// CHECK:STDOUT:   %Eats.type.f54c3d.1: type = facet_type <@Eats, @Eats(%U.as_type)> [symbolic]
-// CHECK:STDOUT:   %Self.c30: %Eats.type.f54c3d.1 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %require_complete.42532a.1: <witness> = require_complete_type %Eats.type.f54c3d.1 [symbolic]
-// CHECK:STDOUT:   %Eats.impl_witness.fabf92.1: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%T.fd4, %U) [symbolic]
+// CHECK:STDOUT:   %Eats.type.925f52.1: type = facet_type <@Eats, @Eats(%U.as_type)> [symbolic]
+// CHECK:STDOUT:   %Self.a64: %Eats.type.925f52.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %require_complete.9966e5.1: <witness> = require_complete_type %Eats.type.925f52.1 [symbolic]
+// CHECK:STDOUT:   %Eats.impl_witness.c7c7ef.1: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%T.a8c, %U) [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.943: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.96e: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.940: type = ptr_type %Goat [concrete]
 // CHECK:STDOUT:   %pattern_type.396: type = pattern_type %ptr.940 [concrete]
 // CHECK:STDOUT:   %Goat.as.Destroy.impl.Op.type: type = fn_type @Goat.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Goat.as.Destroy.impl.Op: %Goat.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Animal.impl_witness: <witness> = impl_witness file.%Animal.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Food.9af: %Edible.type = bind_symbolic_name Food, 0 [symbolic]
-// CHECK:STDOUT:   %Food.as_type.952: type = facet_access_type %Food.9af [symbolic]
-// CHECK:STDOUT:   %Eats.type.b39: type = facet_type <@Eats, @Eats(%Food.as_type.952)> [symbolic]
-// CHECK:STDOUT:   %T.223: %Eats.type.b39 = bind_symbolic_name T, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.ed7: type = pattern_type %Eats.type.b39 [symbolic]
-// CHECK:STDOUT:   %Self.223: %Eats.type.b39 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %T.as_type.212: type = facet_access_type %T.223 [symbolic]
-// CHECK:STDOUT:   %pattern_type.1a1: type = pattern_type %T.as_type.212 [symbolic]
-// CHECK:STDOUT:   %pattern_type.54f: type = pattern_type %Food.as_type.952 [symbolic]
+// CHECK:STDOUT:   %Food.3cd: %Edible.type = bind_symbolic_name Food, 0 [symbolic]
+// CHECK:STDOUT:   %Food.as_type.6b5: type = facet_access_type %Food.3cd [symbolic]
+// CHECK:STDOUT:   %Eats.type.b97: type = facet_type <@Eats, @Eats(%Food.as_type.6b5)> [symbolic]
+// CHECK:STDOUT:   %T.745: %Eats.type.b97 = bind_symbolic_name T, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.e85: type = pattern_type %Eats.type.b97 [symbolic]
+// CHECK:STDOUT:   %Self.745: %Eats.type.b97 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %T.as_type.61d: type = facet_access_type %T.745 [symbolic]
+// CHECK:STDOUT:   %pattern_type.e8d: type = pattern_type %T.as_type.61d [symbolic]
+// CHECK:STDOUT:   %pattern_type.1c3: type = pattern_type %Food.as_type.6b5 [symbolic]
 // CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
 // CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.fe6: <witness> = require_complete_type %T.as_type.212 [symbolic]
-// CHECK:STDOUT:   %require_complete.005: <witness> = require_complete_type %Food.as_type.952 [symbolic]
-// CHECK:STDOUT:   %Food.5fe: %Edible.type = bind_symbolic_name Food, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.36a: type = pattern_type %T.as_type.2ad [symbolic]
-// CHECK:STDOUT:   %Food.as_type.fae: type = facet_access_type %Food.5fe [symbolic]
-// CHECK:STDOUT:   %pattern_type.f86: type = pattern_type %Food.as_type.fae [symbolic]
+// CHECK:STDOUT:   %require_complete.e40: <witness> = require_complete_type %T.as_type.61d [symbolic]
+// CHECK:STDOUT:   %require_complete.1c8: <witness> = require_complete_type %Food.as_type.6b5 [symbolic]
+// CHECK:STDOUT:   %Food.72d: %Edible.type = bind_symbolic_name Food, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.28a: type = pattern_type %T.as_type.b5e [symbolic]
+// CHECK:STDOUT:   %Food.as_type.9a9: type = facet_access_type %Food.72d [symbolic]
+// CHECK:STDOUT:   %pattern_type.4e1: type = pattern_type %Food.as_type.9a9 [symbolic]
 // CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
 // CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.234: <witness> = require_complete_type %T.as_type.2ad [symbolic]
-// CHECK:STDOUT:   %require_complete.444: <witness> = require_complete_type %Food.as_type.fae [symbolic]
-// CHECK:STDOUT:   %Eats.type.f54c3d.2: type = facet_type <@Eats, @Eats(%Food.as_type.fae)> [symbolic]
-// CHECK:STDOUT:   %require_complete.42532a.2: <witness> = require_complete_type %Eats.type.f54c3d.2 [symbolic]
-// CHECK:STDOUT:   %Eats.impl_witness.fabf92.2: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%T.fd4, %Food.5fe) [symbolic]
-// CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %T.fd4, @Eats, @Eats(%Food.as_type.fae) [symbolic]
-// CHECK:STDOUT:   %Eats.facet.512: %Eats.type.f54c3d.2 = facet_value %T.as_type.2ad, (%Eats.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %pattern_type.bb9: type = pattern_type %Eats.type.f54c3d.2 [symbolic]
-// CHECK:STDOUT:   %Feed.specific_fn.ea3: <specific function> = specific_function %Feed, @Feed(%Food.5fe, %Eats.facet.512) [symbolic]
+// CHECK:STDOUT:   %require_complete.29e: <witness> = require_complete_type %T.as_type.b5e [symbolic]
+// CHECK:STDOUT:   %require_complete.8c8: <witness> = require_complete_type %Food.as_type.9a9 [symbolic]
+// CHECK:STDOUT:   %Eats.type.925f52.2: type = facet_type <@Eats, @Eats(%Food.as_type.9a9)> [symbolic]
+// CHECK:STDOUT:   %require_complete.9966e5.2: <witness> = require_complete_type %Eats.type.925f52.2 [symbolic]
+// CHECK:STDOUT:   %Eats.impl_witness.c7c7ef.2: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%T.a8c, %Food.72d) [symbolic]
+// CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %T.a8c, @Eats, @Eats(%Food.as_type.9a9) [symbolic]
+// CHECK:STDOUT:   %Eats.facet.512: %Eats.type.925f52.2 = facet_value %T.as_type.b5e, (%Eats.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %pattern_type.1fa: type = pattern_type %Eats.type.925f52.2 [symbolic]
+// CHECK:STDOUT:   %Feed.specific_fn.34d: <specific function> = specific_function %Feed, @Feed(%Food.72d, %Eats.facet.512) [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Goat.val: %Goat = struct_value () [concrete]
@@ -115,13 +115,13 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type.ab7: type = pattern_type %Goat [concrete]
 // CHECK:STDOUT:   %pattern_type.aff: type = pattern_type %Grass [concrete]
 // CHECK:STDOUT:   %HandleAnimal.specific_fn: <specific function> = specific_function %HandleAnimal, @HandleAnimal(%Animal.facet, %Edible.facet) [concrete]
-// CHECK:STDOUT:   %Eats.type.1ae: type = facet_type <@Eats, @Eats(%Grass)> [concrete]
-// CHECK:STDOUT:   %Self.016: %Eats.type.1ae = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %complete_type.004: <witness> = complete_type_witness %Eats.type.1ae [concrete]
-// CHECK:STDOUT:   %Eats.impl_witness.1cf: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%Animal.facet, %Edible.facet) [concrete]
-// CHECK:STDOUT:   %Eats.facet.cb1: %Eats.type.1ae = facet_value %Goat, (%Eats.impl_witness.1cf) [concrete]
-// CHECK:STDOUT:   %pattern_type.d77: type = pattern_type %Eats.type.1ae [concrete]
-// CHECK:STDOUT:   %Feed.specific_fn.86c: <specific function> = specific_function %Feed, @Feed(%Edible.facet, %Eats.facet.cb1) [concrete]
+// CHECK:STDOUT:   %Eats.type.98c: type = facet_type <@Eats, @Eats(%Grass)> [concrete]
+// CHECK:STDOUT:   %Self.c72: %Eats.type.98c = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %complete_type.916: <witness> = complete_type_witness %Eats.type.98c [concrete]
+// CHECK:STDOUT:   %Eats.impl_witness.907: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%Animal.facet, %Edible.facet) [concrete]
+// CHECK:STDOUT:   %Eats.facet.be9: %Eats.type.98c = facet_value %Goat, (%Eats.impl_witness.907) [concrete]
+// CHECK:STDOUT:   %pattern_type.031: type = pattern_type %Eats.type.98c [concrete]
+// CHECK:STDOUT:   %Feed.specific_fn.335: <specific function> = specific_function %Feed, @Feed(%Edible.facet, %Eats.facet.be9) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -162,22 +162,22 @@ fn F() {
 // CHECK:STDOUT:     %Food.loc21_16.2: type = bind_symbolic_name Food, 0 [symbolic = %Food.loc21_16.1 (constants.%Food.8b3)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   impl_decl @T.as_type.as.Eats.impl [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: %pattern_type.939 = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.09a = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref: %Animal.type = name_ref T, %T.loc26_14.1 [symbolic = %T.loc26_14.2 (constants.%T.fd4)]
-// CHECK:STDOUT:     %T.as_type.loc26_38.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc26_38.2 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc26_38: type = converted %T.ref, %T.as_type.loc26_38.1 [symbolic = %T.as_type.loc26_38.2 (constants.%T.as_type.2ad)]
+// CHECK:STDOUT:     %T.ref: %Animal.type = name_ref T, %T.loc26_14.1 [symbolic = %T.loc26_14.2 (constants.%T.a8c)]
+// CHECK:STDOUT:     %T.as_type.loc26_38.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc26_38.2 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc26_38: type = converted %T.ref, %T.as_type.loc26_38.1 [symbolic = %T.as_type.loc26_38.2 (constants.%T.as_type.b5e)]
 // CHECK:STDOUT:     %Eats.ref: %Eats.type.ba2 = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.generic]
 // CHECK:STDOUT:     %U.ref: %Edible.type = name_ref U, %U.loc26_26.1 [symbolic = %U.loc26_26.2 (constants.%U)]
 // CHECK:STDOUT:     %U.as_type.loc26_49.1: type = facet_access_type %U.ref [symbolic = %U.as_type.loc26_49.2 (constants.%U.as_type)]
 // CHECK:STDOUT:     %.loc26_49: type = converted %U.ref, %U.as_type.loc26_49.1 [symbolic = %U.as_type.loc26_49.2 (constants.%U.as_type)]
-// CHECK:STDOUT:     %Eats.type.loc26_49.1: type = facet_type <@Eats, @Eats(constants.%U.as_type)> [symbolic = %Eats.type.loc26_49.2 (constants.%Eats.type.f54c3d.1)]
+// CHECK:STDOUT:     %Eats.type.loc26_49.1: type = facet_type <@Eats, @Eats(constants.%U.as_type)> [symbolic = %Eats.type.loc26_49.2 (constants.%Eats.type.925f52.1)]
 // CHECK:STDOUT:     %.loc26_18: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc26_14.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T.fd4)]
+// CHECK:STDOUT:     %T.loc26_14.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T.a8c)]
 // CHECK:STDOUT:     %.loc26_30: type = splice_block %Edible.ref [concrete = constants.%Edible.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Edible.ref: type = name_ref Edible, file.%Edible.decl [concrete = constants.%Edible.type]
@@ -185,7 +185,7 @@ fn F() {
 // CHECK:STDOUT:     %U.loc26_26.1: %Edible.type = bind_symbolic_name U, 1 [symbolic = %U.loc26_26.2 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Eats.impl_witness_table = impl_witness_table (), @T.as_type.as.Eats.impl [concrete]
-// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table, @T.as_type.as.Eats.impl(constants.%T.fd4, constants.%U) [symbolic = @T.as_type.as.Eats.impl.%Eats.impl_witness (constants.%Eats.impl_witness.fabf92.1)]
+// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table, @T.as_type.as.Eats.impl(constants.%T.a8c, constants.%U) [symbolic = @T.as_type.as.Eats.impl.%Eats.impl_witness (constants.%Eats.impl_witness.c7c7ef.1)]
 // CHECK:STDOUT:   %Goat.decl: type = class_decl @Goat [concrete = constants.%Goat] {} {}
 // CHECK:STDOUT:   impl_decl @Goat.as.Animal.impl [concrete] {} {
 // CHECK:STDOUT:     %Goat.ref: type = name_ref Goat, file.%Goat.decl [concrete = constants.%Goat]
@@ -194,74 +194,74 @@ fn F() {
 // CHECK:STDOUT:   %Animal.impl_witness_table = impl_witness_table (), @Goat.as.Animal.impl [concrete]
 // CHECK:STDOUT:   %Animal.impl_witness: <witness> = impl_witness %Animal.impl_witness_table [concrete = constants.%Animal.impl_witness]
 // CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
-// CHECK:STDOUT:     %Food.patt: %pattern_type.939 = symbolic_binding_pattern Food, 0 [concrete]
-// CHECK:STDOUT:     %T.patt: @Feed.%pattern_type.loc31_24 (%pattern_type.ed7) = symbolic_binding_pattern T, 1 [concrete]
-// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type.loc31_40 (%pattern_type.1a1) = binding_pattern e [concrete]
-// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type.loc31_40 (%pattern_type.1a1) = value_param_pattern %e.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %food.patt: @Feed.%pattern_type.loc31_46 (%pattern_type.54f) = binding_pattern food [concrete]
-// CHECK:STDOUT:     %food.param_patt: @Feed.%pattern_type.loc31_46 (%pattern_type.54f) = value_param_pattern %food.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %Food.patt: %pattern_type.09a = symbolic_binding_pattern Food, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: @Feed.%pattern_type.loc31_24 (%pattern_type.e85) = symbolic_binding_pattern T, 1 [concrete]
+// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type.loc31_40 (%pattern_type.e8d) = binding_pattern e [concrete]
+// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type.loc31_40 (%pattern_type.e8d) = value_param_pattern %e.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %food.patt: @Feed.%pattern_type.loc31_46 (%pattern_type.1c3) = binding_pattern food [concrete]
+// CHECK:STDOUT:     %food.param_patt: @Feed.%pattern_type.loc31_46 (%pattern_type.1c3) = value_param_pattern %food.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc31_16: type = splice_block %Edible.ref [concrete = constants.%Edible.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Edible.ref: type = name_ref Edible, file.%Edible.decl [concrete = constants.%Edible.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %Food.loc31_9.2: %Edible.type = bind_symbolic_name Food, 0 [symbolic = %Food.loc31_9.1 (constants.%Food.9af)]
-// CHECK:STDOUT:     %.loc31_37.1: type = splice_block %Eats.type.loc31_37.2 [symbolic = %Eats.type.loc31_37.1 (constants.%Eats.type.b39)] {
+// CHECK:STDOUT:     %Food.loc31_9.2: %Edible.type = bind_symbolic_name Food, 0 [symbolic = %Food.loc31_9.1 (constants.%Food.3cd)]
+// CHECK:STDOUT:     %.loc31_37.1: type = splice_block %Eats.type.loc31_37.2 [symbolic = %Eats.type.loc31_37.1 (constants.%Eats.type.b97)] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Eats.ref: %Eats.type.ba2 = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.generic]
-// CHECK:STDOUT:       %Food.ref.loc31_33: %Edible.type = name_ref Food, %Food.loc31_9.2 [symbolic = %Food.loc31_9.1 (constants.%Food.9af)]
-// CHECK:STDOUT:       %Food.as_type.loc31_37.2: type = facet_access_type %Food.ref.loc31_33 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.952)]
-// CHECK:STDOUT:       %.loc31_37.2: type = converted %Food.ref.loc31_33, %Food.as_type.loc31_37.2 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.952)]
-// CHECK:STDOUT:       %Eats.type.loc31_37.2: type = facet_type <@Eats, @Eats(constants.%Food.as_type.952)> [symbolic = %Eats.type.loc31_37.1 (constants.%Eats.type.b39)]
+// CHECK:STDOUT:       %Food.ref.loc31_33: %Edible.type = name_ref Food, %Food.loc31_9.2 [symbolic = %Food.loc31_9.1 (constants.%Food.3cd)]
+// CHECK:STDOUT:       %Food.as_type.loc31_37.2: type = facet_access_type %Food.ref.loc31_33 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.6b5)]
+// CHECK:STDOUT:       %.loc31_37.2: type = converted %Food.ref.loc31_33, %Food.as_type.loc31_37.2 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.6b5)]
+// CHECK:STDOUT:       %Eats.type.loc31_37.2: type = facet_type <@Eats, @Eats(constants.%Food.as_type.6b5)> [symbolic = %Eats.type.loc31_37.1 (constants.%Eats.type.b97)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc31_24.2: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b39) = bind_symbolic_name T, 1 [symbolic = %T.loc31_24.1 (constants.%T.223)]
-// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc31_43.1 (%T.as_type.212) = value_param call_param0
-// CHECK:STDOUT:     %.loc31_43.1: type = splice_block %.loc31_43.2 [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.212)] {
-// CHECK:STDOUT:       %T.ref: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b39) = name_ref T, %T.loc31_24.2 [symbolic = %T.loc31_24.1 (constants.%T.223)]
-// CHECK:STDOUT:       %T.as_type.loc31_43.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.212)]
-// CHECK:STDOUT:       %.loc31_43.2: type = converted %T.ref, %T.as_type.loc31_43.2 [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.212)]
+// CHECK:STDOUT:     %T.loc31_24.2: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b97) = bind_symbolic_name T, 1 [symbolic = %T.loc31_24.1 (constants.%T.745)]
+// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc31_43.1 (%T.as_type.61d) = value_param call_param0
+// CHECK:STDOUT:     %.loc31_43.1: type = splice_block %.loc31_43.2 [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.61d)] {
+// CHECK:STDOUT:       %T.ref: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b97) = name_ref T, %T.loc31_24.2 [symbolic = %T.loc31_24.1 (constants.%T.745)]
+// CHECK:STDOUT:       %T.as_type.loc31_43.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.61d)]
+// CHECK:STDOUT:       %.loc31_43.2: type = converted %T.ref, %T.as_type.loc31_43.2 [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.61d)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc31_43.1 (%T.as_type.212) = bind_name e, %e.param
-// CHECK:STDOUT:     %food.param: @Feed.%Food.as_type.loc31_37.1 (%Food.as_type.952) = value_param call_param1
-// CHECK:STDOUT:     %.loc31_52.1: type = splice_block %.loc31_52.2 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.952)] {
-// CHECK:STDOUT:       %Food.ref.loc31_52: %Edible.type = name_ref Food, %Food.loc31_9.2 [symbolic = %Food.loc31_9.1 (constants.%Food.9af)]
-// CHECK:STDOUT:       %Food.as_type.loc31_52: type = facet_access_type %Food.ref.loc31_52 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.952)]
-// CHECK:STDOUT:       %.loc31_52.2: type = converted %Food.ref.loc31_52, %Food.as_type.loc31_52 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.952)]
+// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc31_43.1 (%T.as_type.61d) = bind_name e, %e.param
+// CHECK:STDOUT:     %food.param: @Feed.%Food.as_type.loc31_37.1 (%Food.as_type.6b5) = value_param call_param1
+// CHECK:STDOUT:     %.loc31_52.1: type = splice_block %.loc31_52.2 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.6b5)] {
+// CHECK:STDOUT:       %Food.ref.loc31_52: %Edible.type = name_ref Food, %Food.loc31_9.2 [symbolic = %Food.loc31_9.1 (constants.%Food.3cd)]
+// CHECK:STDOUT:       %Food.as_type.loc31_52: type = facet_access_type %Food.ref.loc31_52 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.6b5)]
+// CHECK:STDOUT:       %.loc31_52.2: type = converted %Food.ref.loc31_52, %Food.as_type.loc31_52 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.6b5)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %food: @Feed.%Food.as_type.loc31_37.1 (%Food.as_type.952) = bind_name food, %food.param
+// CHECK:STDOUT:     %food: @Feed.%Food.as_type.loc31_37.1 (%Food.as_type.6b5) = bind_name food, %food.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %Food.patt: %pattern_type.939 = symbolic_binding_pattern Food, 1 [concrete]
-// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type.loc32_44 (%pattern_type.36a) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type.loc32_44 (%pattern_type.36a) = value_param_pattern %a.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %food.patt: @HandleAnimal.%pattern_type.loc32_50 (%pattern_type.f86) = binding_pattern food [concrete]
-// CHECK:STDOUT:     %food.param_patt: @HandleAnimal.%pattern_type.loc32_50 (%pattern_type.f86) = value_param_pattern %food.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %Food.patt: %pattern_type.09a = symbolic_binding_pattern Food, 1 [concrete]
+// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type.loc32_44 (%pattern_type.28a) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type.loc32_44 (%pattern_type.28a) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %food.patt: @HandleAnimal.%pattern_type.loc32_50 (%pattern_type.4e1) = binding_pattern food [concrete]
+// CHECK:STDOUT:     %food.param_patt: @HandleAnimal.%pattern_type.loc32_50 (%pattern_type.4e1) = value_param_pattern %food.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc32_21: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc32_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc32_17.1 (constants.%T.fd4)]
+// CHECK:STDOUT:     %T.loc32_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc32_17.1 (constants.%T.a8c)]
 // CHECK:STDOUT:     %.loc32_36: type = splice_block %Edible.ref [concrete = constants.%Edible.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Edible.ref: type = name_ref Edible, file.%Edible.decl [concrete = constants.%Edible.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %Food.loc32_29.2: %Edible.type = bind_symbolic_name Food, 1 [symbolic = %Food.loc32_29.1 (constants.%Food.5fe)]
-// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.2ad) = value_param call_param0
-// CHECK:STDOUT:     %.loc32_47.1: type = splice_block %.loc32_47.2 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.2ad)] {
-// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc32_17.2 [symbolic = %T.loc32_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:       %T.as_type.loc32_47.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:       %.loc32_47.2: type = converted %T.ref, %T.as_type.loc32_47.2 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.2ad)]
+// CHECK:STDOUT:     %Food.loc32_29.2: %Edible.type = bind_symbolic_name Food, 1 [symbolic = %Food.loc32_29.1 (constants.%Food.72d)]
+// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.b5e) = value_param call_param0
+// CHECK:STDOUT:     %.loc32_47.1: type = splice_block %.loc32_47.2 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.b5e)] {
+// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc32_17.2 [symbolic = %T.loc32_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:       %T.as_type.loc32_47.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:       %.loc32_47.2: type = converted %T.ref, %T.as_type.loc32_47.2 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.b5e)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.2ad) = bind_name a, %a.param
-// CHECK:STDOUT:     %food.param: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.fae) = value_param call_param1
-// CHECK:STDOUT:     %.loc32_56.1: type = splice_block %.loc32_56.2 [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.fae)] {
-// CHECK:STDOUT:       %Food.ref: %Edible.type = name_ref Food, %Food.loc32_29.2 [symbolic = %Food.loc32_29.1 (constants.%Food.5fe)]
-// CHECK:STDOUT:       %Food.as_type.loc32_56.2: type = facet_access_type %Food.ref [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.fae)]
-// CHECK:STDOUT:       %.loc32_56.2: type = converted %Food.ref, %Food.as_type.loc32_56.2 [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.fae)]
+// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.b5e) = bind_name a, %a.param
+// CHECK:STDOUT:     %food.param: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.9a9) = value_param call_param1
+// CHECK:STDOUT:     %.loc32_56.1: type = splice_block %.loc32_56.2 [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.9a9)] {
+// CHECK:STDOUT:       %Food.ref: %Edible.type = name_ref Food, %Food.loc32_29.2 [symbolic = %Food.loc32_29.1 (constants.%Food.72d)]
+// CHECK:STDOUT:       %Food.as_type.loc32_56.2: type = facet_access_type %Food.ref [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.9a9)]
+// CHECK:STDOUT:       %.loc32_56.2: type = converted %Food.ref, %Food.as_type.loc32_56.2 [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.9a9)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %food: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.fae) = bind_name food, %food.param
+// CHECK:STDOUT:     %food: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.9a9) = bind_name food, %food.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
 // CHECK:STDOUT:   %Edible.facet: %Edible.type = facet_value constants.%Grass, (constants.%Edible.impl_witness) [concrete = constants.%Edible.facet]
@@ -271,7 +271,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Edible {
-// CHECK:STDOUT:   %Self: %Edible.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9af]
+// CHECK:STDOUT:   %Self: %Edible.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3cd]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -279,7 +279,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -290,11 +290,11 @@ fn F() {
 // CHECK:STDOUT:   %Food.loc21_16.1: type = bind_symbolic_name Food, 0 [symbolic = %Food.loc21_16.1 (constants.%Food.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats, @Eats(%Food.loc21_16.1)> [symbolic = %Eats.type (constants.%Eats.type.6c0)]
-// CHECK:STDOUT:   %Self.2: @Eats.%Eats.type (%Eats.type.6c0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.4eb)]
+// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats, @Eats(%Food.loc21_16.1)> [symbolic = %Eats.type (constants.%Eats.type.404)]
+// CHECK:STDOUT:   %Self.2: @Eats.%Eats.type (%Eats.type.404) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.563)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Eats.%Eats.type (%Eats.type.6c0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.4eb)]
+// CHECK:STDOUT:     %Self.1: @Eats.%Eats.type (%Eats.type.404) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.563)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -324,13 +324,13 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @T.as_type.as.Eats.impl(%T.loc26_14.1: %Animal.type, %U.loc26_26.1: %Edible.type) {
-// CHECK:STDOUT:   %T.loc26_14.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T.fd4)]
+// CHECK:STDOUT:   %T.loc26_14.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T.a8c)]
 // CHECK:STDOUT:   %U.loc26_26.2: %Edible.type = bind_symbolic_name U, 1 [symbolic = %U.loc26_26.2 (constants.%U)]
-// CHECK:STDOUT:   %T.as_type.loc26_38.2: type = facet_access_type %T.loc26_14.2 [symbolic = %T.as_type.loc26_38.2 (constants.%T.as_type.2ad)]
+// CHECK:STDOUT:   %T.as_type.loc26_38.2: type = facet_access_type %T.loc26_14.2 [symbolic = %T.as_type.loc26_38.2 (constants.%T.as_type.b5e)]
 // CHECK:STDOUT:   %U.as_type.loc26_49.2: type = facet_access_type %U.loc26_26.2 [symbolic = %U.as_type.loc26_49.2 (constants.%U.as_type)]
-// CHECK:STDOUT:   %Eats.type.loc26_49.2: type = facet_type <@Eats, @Eats(%U.as_type.loc26_49.2)> [symbolic = %Eats.type.loc26_49.2 (constants.%Eats.type.f54c3d.1)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Eats.type.loc26_49.2 [symbolic = %require_complete (constants.%require_complete.42532a.1)]
-// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%T.loc26_14.2, %U.loc26_26.2) [symbolic = %Eats.impl_witness (constants.%Eats.impl_witness.fabf92.1)]
+// CHECK:STDOUT:   %Eats.type.loc26_49.2: type = facet_type <@Eats, @Eats(%U.as_type.loc26_49.2)> [symbolic = %Eats.type.loc26_49.2 (constants.%Eats.type.925f52.1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Eats.type.loc26_49.2 [symbolic = %require_complete (constants.%require_complete.9966e5.1)]
+// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table, @T.as_type.as.Eats.impl(%T.loc26_14.2, %U.loc26_26.2) [symbolic = %Eats.impl_witness (constants.%Eats.impl_witness.c7c7ef.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -365,7 +365,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Grass [concrete = constants.%Grass]
 // CHECK:STDOUT:   impl_decl @Grass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Grass.as.Destroy.impl.%Grass.as.Destroy.impl.Op.decl), @Grass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.826]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.215]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -377,7 +377,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Goat [concrete = constants.%Goat]
 // CHECK:STDOUT:   impl_decl @Goat.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Goat.as.Destroy.impl.%Goat.as.Destroy.impl.Op.decl), @Goat.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.943]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.96e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -389,56 +389,56 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @Goat.as.Destroy.impl.Op(%self.param: %ptr.940) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Feed(%Food.loc31_9.2: %Edible.type, %T.loc31_24.2: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b39)) {
-// CHECK:STDOUT:   %Food.loc31_9.1: %Edible.type = bind_symbolic_name Food, 0 [symbolic = %Food.loc31_9.1 (constants.%Food.9af)]
-// CHECK:STDOUT:   %Food.as_type.loc31_37.1: type = facet_access_type %Food.loc31_9.1 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.952)]
-// CHECK:STDOUT:   %Eats.type.loc31_37.1: type = facet_type <@Eats, @Eats(%Food.as_type.loc31_37.1)> [symbolic = %Eats.type.loc31_37.1 (constants.%Eats.type.b39)]
-// CHECK:STDOUT:   %T.loc31_24.1: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b39) = bind_symbolic_name T, 1 [symbolic = %T.loc31_24.1 (constants.%T.223)]
-// CHECK:STDOUT:   %pattern_type.loc31_24: type = pattern_type %Eats.type.loc31_37.1 [symbolic = %pattern_type.loc31_24 (constants.%pattern_type.ed7)]
-// CHECK:STDOUT:   %T.as_type.loc31_43.1: type = facet_access_type %T.loc31_24.1 [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.212)]
-// CHECK:STDOUT:   %pattern_type.loc31_40: type = pattern_type %T.as_type.loc31_43.1 [symbolic = %pattern_type.loc31_40 (constants.%pattern_type.1a1)]
-// CHECK:STDOUT:   %pattern_type.loc31_46: type = pattern_type %Food.as_type.loc31_37.1 [symbolic = %pattern_type.loc31_46 (constants.%pattern_type.54f)]
+// CHECK:STDOUT: generic fn @Feed(%Food.loc31_9.2: %Edible.type, %T.loc31_24.2: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b97)) {
+// CHECK:STDOUT:   %Food.loc31_9.1: %Edible.type = bind_symbolic_name Food, 0 [symbolic = %Food.loc31_9.1 (constants.%Food.3cd)]
+// CHECK:STDOUT:   %Food.as_type.loc31_37.1: type = facet_access_type %Food.loc31_9.1 [symbolic = %Food.as_type.loc31_37.1 (constants.%Food.as_type.6b5)]
+// CHECK:STDOUT:   %Eats.type.loc31_37.1: type = facet_type <@Eats, @Eats(%Food.as_type.loc31_37.1)> [symbolic = %Eats.type.loc31_37.1 (constants.%Eats.type.b97)]
+// CHECK:STDOUT:   %T.loc31_24.1: @Feed.%Eats.type.loc31_37.1 (%Eats.type.b97) = bind_symbolic_name T, 1 [symbolic = %T.loc31_24.1 (constants.%T.745)]
+// CHECK:STDOUT:   %pattern_type.loc31_24: type = pattern_type %Eats.type.loc31_37.1 [symbolic = %pattern_type.loc31_24 (constants.%pattern_type.e85)]
+// CHECK:STDOUT:   %T.as_type.loc31_43.1: type = facet_access_type %T.loc31_24.1 [symbolic = %T.as_type.loc31_43.1 (constants.%T.as_type.61d)]
+// CHECK:STDOUT:   %pattern_type.loc31_40: type = pattern_type %T.as_type.loc31_43.1 [symbolic = %pattern_type.loc31_40 (constants.%pattern_type.e8d)]
+// CHECK:STDOUT:   %pattern_type.loc31_46: type = pattern_type %Food.as_type.loc31_37.1 [symbolic = %pattern_type.loc31_46 (constants.%pattern_type.1c3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc31_41: <witness> = require_complete_type %T.as_type.loc31_43.1 [symbolic = %require_complete.loc31_41 (constants.%require_complete.fe6)]
-// CHECK:STDOUT:   %require_complete.loc31_50: <witness> = require_complete_type %Food.as_type.loc31_37.1 [symbolic = %require_complete.loc31_50 (constants.%require_complete.005)]
+// CHECK:STDOUT:   %require_complete.loc31_41: <witness> = require_complete_type %T.as_type.loc31_43.1 [symbolic = %require_complete.loc31_41 (constants.%require_complete.e40)]
+// CHECK:STDOUT:   %require_complete.loc31_50: <witness> = require_complete_type %Food.as_type.loc31_37.1 [symbolic = %require_complete.loc31_50 (constants.%require_complete.1c8)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc31_43.1 (%T.as_type.212), %food.param: @Feed.%Food.as_type.loc31_37.1 (%Food.as_type.952)) {
+// CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc31_43.1 (%T.as_type.61d), %food.param: @Feed.%Food.as_type.loc31_37.1 (%Food.as_type.6b5)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HandleAnimal(%T.loc32_17.2: %Animal.type, %Food.loc32_29.2: %Edible.type) {
-// CHECK:STDOUT:   %T.loc32_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc32_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:   %Food.loc32_29.1: %Edible.type = bind_symbolic_name Food, 1 [symbolic = %Food.loc32_29.1 (constants.%Food.5fe)]
-// CHECK:STDOUT:   %T.as_type.loc32_47.1: type = facet_access_type %T.loc32_17.1 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:   %pattern_type.loc32_44: type = pattern_type %T.as_type.loc32_47.1 [symbolic = %pattern_type.loc32_44 (constants.%pattern_type.36a)]
-// CHECK:STDOUT:   %Food.as_type.loc32_56.1: type = facet_access_type %Food.loc32_29.1 [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.fae)]
-// CHECK:STDOUT:   %pattern_type.loc32_50: type = pattern_type %Food.as_type.loc32_56.1 [symbolic = %pattern_type.loc32_50 (constants.%pattern_type.f86)]
+// CHECK:STDOUT:   %T.loc32_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc32_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:   %Food.loc32_29.1: %Edible.type = bind_symbolic_name Food, 1 [symbolic = %Food.loc32_29.1 (constants.%Food.72d)]
+// CHECK:STDOUT:   %T.as_type.loc32_47.1: type = facet_access_type %T.loc32_17.1 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:   %pattern_type.loc32_44: type = pattern_type %T.as_type.loc32_47.1 [symbolic = %pattern_type.loc32_44 (constants.%pattern_type.28a)]
+// CHECK:STDOUT:   %Food.as_type.loc32_56.1: type = facet_access_type %Food.loc32_29.1 [symbolic = %Food.as_type.loc32_56.1 (constants.%Food.as_type.9a9)]
+// CHECK:STDOUT:   %pattern_type.loc32_50: type = pattern_type %Food.as_type.loc32_56.1 [symbolic = %pattern_type.loc32_50 (constants.%pattern_type.4e1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc32_45: <witness> = require_complete_type %T.as_type.loc32_47.1 [symbolic = %require_complete.loc32_45 (constants.%require_complete.234)]
-// CHECK:STDOUT:   %require_complete.loc32_54: <witness> = require_complete_type %Food.as_type.loc32_56.1 [symbolic = %require_complete.loc32_54 (constants.%require_complete.444)]
+// CHECK:STDOUT:   %require_complete.loc32_45: <witness> = require_complete_type %T.as_type.loc32_47.1 [symbolic = %require_complete.loc32_45 (constants.%require_complete.29e)]
+// CHECK:STDOUT:   %require_complete.loc32_54: <witness> = require_complete_type %Food.as_type.loc32_56.1 [symbolic = %require_complete.loc32_54 (constants.%require_complete.8c8)]
 // CHECK:STDOUT:   %Eats.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc32_17.1, @Eats, @Eats(%Food.as_type.loc32_56.1) [symbolic = %Eats.lookup_impl_witness (constants.%Eats.lookup_impl_witness)]
-// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats, @Eats(%Food.as_type.loc32_56.1)> [symbolic = %Eats.type (constants.%Eats.type.f54c3d.2)]
-// CHECK:STDOUT:   %Eats.facet.loc32_76.2: @HandleAnimal.%Eats.type (%Eats.type.f54c3d.2) = facet_value %T.as_type.loc32_47.1, (%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc32_76.2 (constants.%Eats.facet.512)]
-// CHECK:STDOUT:   %Feed.specific_fn.loc32_64.2: <specific function> = specific_function constants.%Feed, @Feed(%Food.loc32_29.1, %Eats.facet.loc32_76.2) [symbolic = %Feed.specific_fn.loc32_64.2 (constants.%Feed.specific_fn.ea3)]
+// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats, @Eats(%Food.as_type.loc32_56.1)> [symbolic = %Eats.type (constants.%Eats.type.925f52.2)]
+// CHECK:STDOUT:   %Eats.facet.loc32_76.2: @HandleAnimal.%Eats.type (%Eats.type.925f52.2) = facet_value %T.as_type.loc32_47.1, (%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc32_76.2 (constants.%Eats.facet.512)]
+// CHECK:STDOUT:   %Feed.specific_fn.loc32_64.2: <specific function> = specific_function constants.%Feed, @Feed(%Food.loc32_29.1, %Eats.facet.loc32_76.2) [symbolic = %Feed.specific_fn.loc32_64.2 (constants.%Feed.specific_fn.34d)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.2ad), %food.param: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.fae)) {
+// CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.b5e), %food.param: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.9a9)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %Feed.ref: %Feed.type = name_ref Feed, file.%Feed.decl [concrete = constants.%Feed]
-// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.2ad) = name_ref a, %a
-// CHECK:STDOUT:     %food.ref: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.fae) = name_ref food, %food
-// CHECK:STDOUT:     %.loc32_76.1: %Edible.type = converted constants.%Food.as_type.fae, constants.%Food.5fe [symbolic = %Food.loc32_29.1 (constants.%Food.5fe)]
-// CHECK:STDOUT:     %.loc32_76.2: %Edible.type = converted constants.%Food.as_type.fae, constants.%Food.5fe [symbolic = %Food.loc32_29.1 (constants.%Food.5fe)]
-// CHECK:STDOUT:     %.loc32_76.3: %Edible.type = converted constants.%Food.as_type.fae, constants.%Food.5fe [symbolic = %Food.loc32_29.1 (constants.%Food.5fe)]
-// CHECK:STDOUT:     %T.as_type.loc32_76: type = facet_access_type constants.%T.fd4 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc32_76.4: type = converted constants.%T.fd4, %T.as_type.loc32_76 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:     %.loc32_76.5: %Animal.type = converted %.loc32_76.4, constants.%T.fd4 [symbolic = %T.loc32_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %Eats.facet.loc32_76.1: @HandleAnimal.%Eats.type (%Eats.type.f54c3d.2) = facet_value constants.%T.as_type.2ad, (constants.%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc32_76.2 (constants.%Eats.facet.512)]
-// CHECK:STDOUT:     %.loc32_76.6: @HandleAnimal.%Eats.type (%Eats.type.f54c3d.2) = converted constants.%T.as_type.2ad, %Eats.facet.loc32_76.1 [symbolic = %Eats.facet.loc32_76.2 (constants.%Eats.facet.512)]
-// CHECK:STDOUT:     %Feed.specific_fn.loc32_64.1: <specific function> = specific_function %Feed.ref, @Feed(constants.%Food.5fe, constants.%Eats.facet.512) [symbolic = %Feed.specific_fn.loc32_64.2 (constants.%Feed.specific_fn.ea3)]
+// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc32_47.1 (%T.as_type.b5e) = name_ref a, %a
+// CHECK:STDOUT:     %food.ref: @HandleAnimal.%Food.as_type.loc32_56.1 (%Food.as_type.9a9) = name_ref food, %food
+// CHECK:STDOUT:     %.loc32_76.1: %Edible.type = converted constants.%Food.as_type.9a9, constants.%Food.72d [symbolic = %Food.loc32_29.1 (constants.%Food.72d)]
+// CHECK:STDOUT:     %.loc32_76.2: %Edible.type = converted constants.%Food.as_type.9a9, constants.%Food.72d [symbolic = %Food.loc32_29.1 (constants.%Food.72d)]
+// CHECK:STDOUT:     %.loc32_76.3: %Edible.type = converted constants.%Food.as_type.9a9, constants.%Food.72d [symbolic = %Food.loc32_29.1 (constants.%Food.72d)]
+// CHECK:STDOUT:     %T.as_type.loc32_76: type = facet_access_type constants.%T.a8c [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc32_76.4: type = converted constants.%T.a8c, %T.as_type.loc32_76 [symbolic = %T.as_type.loc32_47.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:     %.loc32_76.5: %Animal.type = converted %.loc32_76.4, constants.%T.a8c [symbolic = %T.loc32_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %Eats.facet.loc32_76.1: @HandleAnimal.%Eats.type (%Eats.type.925f52.2) = facet_value constants.%T.as_type.b5e, (constants.%Eats.lookup_impl_witness) [symbolic = %Eats.facet.loc32_76.2 (constants.%Eats.facet.512)]
+// CHECK:STDOUT:     %.loc32_76.6: @HandleAnimal.%Eats.type (%Eats.type.925f52.2) = converted constants.%T.as_type.b5e, %Eats.facet.loc32_76.1 [symbolic = %Eats.facet.loc32_76.2 (constants.%Eats.facet.512)]
+// CHECK:STDOUT:     %Feed.specific_fn.loc32_64.1: <specific function> = specific_function %Feed.ref, @Feed(constants.%Food.72d, constants.%Eats.facet.512) [symbolic = %Feed.specific_fn.loc32_64.2 (constants.%Feed.specific_fn.34d)]
 // CHECK:STDOUT:     %Feed.call: init %empty_tuple.type = call %Feed.specific_fn.loc32_64.1(%a.ref, %food.ref)
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -488,77 +488,77 @@ fn F() {
 // CHECK:STDOUT:   %Food.loc21_16.1 => constants.%U.as_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.f54c3d.1
-// CHECK:STDOUT:   %Self.2 => constants.%Self.c30
+// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.925f52.1
+// CHECK:STDOUT:   %Self.2 => constants.%Self.a64
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.Eats.impl(constants.%T.fd4, constants.%U) {
-// CHECK:STDOUT:   %T.loc26_14.2 => constants.%T.fd4
+// CHECK:STDOUT: specific @T.as_type.as.Eats.impl(constants.%T.a8c, constants.%U) {
+// CHECK:STDOUT:   %T.loc26_14.2 => constants.%T.a8c
 // CHECK:STDOUT:   %U.loc26_26.2 => constants.%U
-// CHECK:STDOUT:   %T.as_type.loc26_38.2 => constants.%T.as_type.2ad
+// CHECK:STDOUT:   %T.as_type.loc26_38.2 => constants.%T.as_type.b5e
 // CHECK:STDOUT:   %U.as_type.loc26_49.2 => constants.%U.as_type
-// CHECK:STDOUT:   %Eats.type.loc26_49.2 => constants.%Eats.type.f54c3d.1
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.42532a.1
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.fabf92.1
+// CHECK:STDOUT:   %Eats.type.loc26_49.2 => constants.%Eats.type.925f52.1
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.9966e5.1
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.c7c7ef.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Eats(constants.%Food.as_type.952) {
-// CHECK:STDOUT:   %Food.loc21_16.1 => constants.%Food.as_type.952
+// CHECK:STDOUT: specific @Eats(constants.%Food.as_type.6b5) {
+// CHECK:STDOUT:   %Food.loc21_16.1 => constants.%Food.as_type.6b5
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.b39
-// CHECK:STDOUT:   %Self.2 => constants.%Self.223
+// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.b97
+// CHECK:STDOUT:   %Self.2 => constants.%Self.745
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Feed(constants.%Food.9af, constants.%T.223) {
-// CHECK:STDOUT:   %Food.loc31_9.1 => constants.%Food.9af
-// CHECK:STDOUT:   %Food.as_type.loc31_37.1 => constants.%Food.as_type.952
-// CHECK:STDOUT:   %Eats.type.loc31_37.1 => constants.%Eats.type.b39
-// CHECK:STDOUT:   %T.loc31_24.1 => constants.%T.223
-// CHECK:STDOUT:   %pattern_type.loc31_24 => constants.%pattern_type.ed7
-// CHECK:STDOUT:   %T.as_type.loc31_43.1 => constants.%T.as_type.212
-// CHECK:STDOUT:   %pattern_type.loc31_40 => constants.%pattern_type.1a1
-// CHECK:STDOUT:   %pattern_type.loc31_46 => constants.%pattern_type.54f
+// CHECK:STDOUT: specific @Feed(constants.%Food.3cd, constants.%T.745) {
+// CHECK:STDOUT:   %Food.loc31_9.1 => constants.%Food.3cd
+// CHECK:STDOUT:   %Food.as_type.loc31_37.1 => constants.%Food.as_type.6b5
+// CHECK:STDOUT:   %Eats.type.loc31_37.1 => constants.%Eats.type.b97
+// CHECK:STDOUT:   %T.loc31_24.1 => constants.%T.745
+// CHECK:STDOUT:   %pattern_type.loc31_24 => constants.%pattern_type.e85
+// CHECK:STDOUT:   %T.as_type.loc31_43.1 => constants.%T.as_type.61d
+// CHECK:STDOUT:   %pattern_type.loc31_40 => constants.%pattern_type.e8d
+// CHECK:STDOUT:   %pattern_type.loc31_46 => constants.%pattern_type.1c3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HandleAnimal(constants.%T.fd4, constants.%Food.5fe) {
-// CHECK:STDOUT:   %T.loc32_17.1 => constants.%T.fd4
-// CHECK:STDOUT:   %Food.loc32_29.1 => constants.%Food.5fe
-// CHECK:STDOUT:   %T.as_type.loc32_47.1 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %pattern_type.loc32_44 => constants.%pattern_type.36a
-// CHECK:STDOUT:   %Food.as_type.loc32_56.1 => constants.%Food.as_type.fae
-// CHECK:STDOUT:   %pattern_type.loc32_50 => constants.%pattern_type.f86
+// CHECK:STDOUT: specific @HandleAnimal(constants.%T.a8c, constants.%Food.72d) {
+// CHECK:STDOUT:   %T.loc32_17.1 => constants.%T.a8c
+// CHECK:STDOUT:   %Food.loc32_29.1 => constants.%Food.72d
+// CHECK:STDOUT:   %T.as_type.loc32_47.1 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %pattern_type.loc32_44 => constants.%pattern_type.28a
+// CHECK:STDOUT:   %Food.as_type.loc32_56.1 => constants.%Food.as_type.9a9
+// CHECK:STDOUT:   %pattern_type.loc32_50 => constants.%pattern_type.4e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Eats(constants.%Food.as_type.fae) {
-// CHECK:STDOUT:   %Food.loc21_16.1 => constants.%Food.as_type.fae
+// CHECK:STDOUT: specific @Eats(constants.%Food.as_type.9a9) {
+// CHECK:STDOUT:   %Food.loc21_16.1 => constants.%Food.as_type.9a9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.Eats.impl(constants.%T.fd4, constants.%Food.5fe) {
-// CHECK:STDOUT:   %T.loc26_14.2 => constants.%T.fd4
-// CHECK:STDOUT:   %U.loc26_26.2 => constants.%Food.5fe
-// CHECK:STDOUT:   %T.as_type.loc26_38.2 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %U.as_type.loc26_49.2 => constants.%Food.as_type.fae
-// CHECK:STDOUT:   %Eats.type.loc26_49.2 => constants.%Eats.type.f54c3d.2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.42532a.2
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.fabf92.2
+// CHECK:STDOUT: specific @T.as_type.as.Eats.impl(constants.%T.a8c, constants.%Food.72d) {
+// CHECK:STDOUT:   %T.loc26_14.2 => constants.%T.a8c
+// CHECK:STDOUT:   %U.loc26_26.2 => constants.%Food.72d
+// CHECK:STDOUT:   %T.as_type.loc26_38.2 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %U.as_type.loc26_49.2 => constants.%Food.as_type.9a9
+// CHECK:STDOUT:   %Eats.type.loc26_49.2 => constants.%Eats.type.925f52.2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.9966e5.2
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.c7c7ef.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Feed(constants.%Food.5fe, constants.%Eats.facet.512) {
-// CHECK:STDOUT:   %Food.loc31_9.1 => constants.%Food.5fe
-// CHECK:STDOUT:   %Food.as_type.loc31_37.1 => constants.%Food.as_type.fae
-// CHECK:STDOUT:   %Eats.type.loc31_37.1 => constants.%Eats.type.f54c3d.2
+// CHECK:STDOUT: specific @Feed(constants.%Food.72d, constants.%Eats.facet.512) {
+// CHECK:STDOUT:   %Food.loc31_9.1 => constants.%Food.72d
+// CHECK:STDOUT:   %Food.as_type.loc31_37.1 => constants.%Food.as_type.9a9
+// CHECK:STDOUT:   %Eats.type.loc31_37.1 => constants.%Eats.type.925f52.2
 // CHECK:STDOUT:   %T.loc31_24.1 => constants.%Eats.facet.512
-// CHECK:STDOUT:   %pattern_type.loc31_24 => constants.%pattern_type.bb9
-// CHECK:STDOUT:   %T.as_type.loc31_43.1 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %pattern_type.loc31_40 => constants.%pattern_type.36a
-// CHECK:STDOUT:   %pattern_type.loc31_46 => constants.%pattern_type.f86
+// CHECK:STDOUT:   %pattern_type.loc31_24 => constants.%pattern_type.1fa
+// CHECK:STDOUT:   %T.as_type.loc31_43.1 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %pattern_type.loc31_40 => constants.%pattern_type.28a
+// CHECK:STDOUT:   %pattern_type.loc31_46 => constants.%pattern_type.4e1
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc31_41 => constants.%require_complete.234
-// CHECK:STDOUT:   %require_complete.loc31_50 => constants.%require_complete.444
+// CHECK:STDOUT:   %require_complete.loc31_41 => constants.%require_complete.29e
+// CHECK:STDOUT:   %require_complete.loc31_50 => constants.%require_complete.8c8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HandleAnimal(constants.%Animal.facet, constants.%Edible.facet) {
@@ -572,18 +572,18 @@ fn F() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc32_45 => constants.%complete_type.357
 // CHECK:STDOUT:   %require_complete.loc32_54 => constants.%complete_type.357
-// CHECK:STDOUT:   %Eats.lookup_impl_witness => constants.%Eats.impl_witness.1cf
-// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.1ae
-// CHECK:STDOUT:   %Eats.facet.loc32_76.2 => constants.%Eats.facet.cb1
-// CHECK:STDOUT:   %Feed.specific_fn.loc32_64.2 => constants.%Feed.specific_fn.86c
+// CHECK:STDOUT:   %Eats.lookup_impl_witness => constants.%Eats.impl_witness.907
+// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.98c
+// CHECK:STDOUT:   %Eats.facet.loc32_76.2 => constants.%Eats.facet.be9
+// CHECK:STDOUT:   %Feed.specific_fn.loc32_64.2 => constants.%Feed.specific_fn.335
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Eats(constants.%Grass) {
 // CHECK:STDOUT:   %Food.loc21_16.1 => constants.%Grass
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.1ae
-// CHECK:STDOUT:   %Self.2 => constants.%Self.016
+// CHECK:STDOUT:   %Eats.type => constants.%Eats.type.98c
+// CHECK:STDOUT:   %Self.2 => constants.%Self.c72
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as_type.as.Eats.impl(constants.%Animal.facet, constants.%Edible.facet) {
@@ -591,19 +591,19 @@ fn F() {
 // CHECK:STDOUT:   %U.loc26_26.2 => constants.%Edible.facet
 // CHECK:STDOUT:   %T.as_type.loc26_38.2 => constants.%Goat
 // CHECK:STDOUT:   %U.as_type.loc26_49.2 => constants.%Grass
-// CHECK:STDOUT:   %Eats.type.loc26_49.2 => constants.%Eats.type.1ae
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.004
-// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.1cf
+// CHECK:STDOUT:   %Eats.type.loc26_49.2 => constants.%Eats.type.98c
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.916
+// CHECK:STDOUT:   %Eats.impl_witness => constants.%Eats.impl_witness.907
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Feed(constants.%Edible.facet, constants.%Eats.facet.cb1) {
+// CHECK:STDOUT: specific @Feed(constants.%Edible.facet, constants.%Eats.facet.be9) {
 // CHECK:STDOUT:   %Food.loc31_9.1 => constants.%Edible.facet
 // CHECK:STDOUT:   %Food.as_type.loc31_37.1 => constants.%Grass
-// CHECK:STDOUT:   %Eats.type.loc31_37.1 => constants.%Eats.type.1ae
-// CHECK:STDOUT:   %T.loc31_24.1 => constants.%Eats.facet.cb1
-// CHECK:STDOUT:   %pattern_type.loc31_24 => constants.%pattern_type.d77
+// CHECK:STDOUT:   %Eats.type.loc31_37.1 => constants.%Eats.type.98c
+// CHECK:STDOUT:   %T.loc31_24.1 => constants.%Eats.facet.be9
+// CHECK:STDOUT:   %pattern_type.loc31_24 => constants.%pattern_type.031
 // CHECK:STDOUT:   %T.as_type.loc31_43.1 => constants.%Goat
 // CHECK:STDOUT:   %pattern_type.loc31_40 => constants.%pattern_type.ab7
 // CHECK:STDOUT:   %pattern_type.loc31_46 => constants.%pattern_type.aff
diff --git a/toolchain/check/testdata/facet/convert_facet_value_value_to_itself.carbon b/toolchain/check/testdata/facet/convert_facet_value_value_to_itself.carbon
index cc1e24aa55f3..f2ed8cb689f2 100644
--- a/toolchain/check/testdata/facet/convert_facet_value_value_to_itself.carbon
+++ b/toolchain/check/testdata/facet/convert_facet_value_value_to_itself.carbon
@@ -29,23 +29,23 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %T.fd4: %Animal.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.fd4 [symbolic]
-// CHECK:STDOUT:   %pattern_type.36a: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %T.a8c: %Animal.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.a8c [symbolic]
+// CHECK:STDOUT:   %pattern_type.28a: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %FeedAnimal.type: type = fn_type @FeedAnimal [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %FeedAnimal: %FeedAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.234: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.29e: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
 // CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.ec8: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%T.fd4) [symbolic]
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.c90: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%T.a8c) [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.943: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.96e: <witness> = impl_witness @Goat.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.940: type = ptr_type %Goat [concrete]
 // CHECK:STDOUT:   %pattern_type.396: type = pattern_type %ptr.940 [concrete]
 // CHECK:STDOUT:   %Goat.as.Destroy.impl.Op.type: type = fn_type @Goat.as.Destroy.impl.Op [concrete]
@@ -59,7 +59,7 @@ fn F() {
 // CHECK:STDOUT:   %Animal.facet: %Animal.type = facet_value %Goat, (%Animal.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.ab7: type = pattern_type %Goat [concrete]
 // CHECK:STDOUT:   %HandleAnimal.specific_fn: <specific function> = specific_function %HandleAnimal, @HandleAnimal(%Animal.facet) [concrete]
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.82e: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%Animal.facet) [concrete]
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.3e1: <specific function> = specific_function %FeedAnimal, @FeedAnimal(%Animal.facet) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -83,36 +83,36 @@ fn F() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %FeedAnimal.decl: %FeedAnimal.type = fn_decl @FeedAnimal [concrete = constants.%FeedAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @FeedAnimal.%pattern_type (%pattern_type.36a) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @FeedAnimal.%pattern_type (%pattern_type.36a) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: @FeedAnimal.%pattern_type (%pattern_type.28a) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @FeedAnimal.%pattern_type (%pattern_type.28a) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc17_19: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc17_15.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.fd4)]
+// CHECK:STDOUT:     %T.loc17_15.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.a8c)]
 // CHECK:STDOUT:     %a.param: @FeedAnimal.%T.as_type.loc17_30.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc17_30.1: type = splice_block %.loc17_30.2 [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc17_15.2 [symbolic = %T.loc17_15.1 (constants.%T.fd4)]
+// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc17_15.2 [symbolic = %T.loc17_15.1 (constants.%T.a8c)]
 // CHECK:STDOUT:       %T.as_type.loc17_30.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc17_30.2: type = converted %T.ref, %T.as_type.loc17_30.2 [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %a: @FeedAnimal.%T.as_type.loc17_30.1 (%T.as_type) = bind_name a, %a.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.36a) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.36a) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.28a) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.28a) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc19_21: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc19_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc19_17.1 (constants.%T.fd4)]
+// CHECK:STDOUT:     %T.loc19_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc19_17.1 (constants.%T.a8c)]
 // CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc19_32.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc19_32.1: type = splice_block %.loc19_32.2 [symbolic = %T.as_type.loc19_32.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc19_17.2 [symbolic = %T.loc19_17.1 (constants.%T.fd4)]
+// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc19_17.2 [symbolic = %T.loc19_17.1 (constants.%T.a8c)]
 // CHECK:STDOUT:       %T.as_type.loc19_32.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc19_32.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc19_32.2: type = converted %T.ref, %T.as_type.loc19_32.2 [symbolic = %T.as_type.loc19_32.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -129,7 +129,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -161,7 +161,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Goat [concrete = constants.%Goat]
 // CHECK:STDOUT:   impl_decl @Goat.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Goat.as.Destroy.impl.%Goat.as.Destroy.impl.Op.decl), @Goat.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.943]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.96e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -170,12 +170,12 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @FeedAnimal(%T.loc17_15.2: %Animal.type) {
-// CHECK:STDOUT:   %T.loc17_15.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.fd4)]
+// CHECK:STDOUT:   %T.loc17_15.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_15.1 (constants.%T.a8c)]
 // CHECK:STDOUT:   %T.as_type.loc17_30.1: type = facet_access_type %T.loc17_15.1 [symbolic = %T.as_type.loc17_30.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc17_30.1 [symbolic = %pattern_type (constants.%pattern_type.36a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc17_30.1 [symbolic = %pattern_type (constants.%pattern_type.28a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc17_30.1 [symbolic = %require_complete (constants.%require_complete.234)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc17_30.1 [symbolic = %require_complete (constants.%require_complete.29e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @FeedAnimal.%T.as_type.loc17_30.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -184,21 +184,21 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HandleAnimal(%T.loc19_17.2: %Animal.type) {
-// CHECK:STDOUT:   %T.loc19_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc19_17.1 (constants.%T.fd4)]
+// CHECK:STDOUT:   %T.loc19_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc19_17.1 (constants.%T.a8c)]
 // CHECK:STDOUT:   %T.as_type.loc19_32.1: type = facet_access_type %T.loc19_17.1 [symbolic = %T.as_type.loc19_32.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc19_32.1 [symbolic = %pattern_type (constants.%pattern_type.36a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc19_32.1 [symbolic = %pattern_type (constants.%pattern_type.28a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc19_32.1 [symbolic = %require_complete (constants.%require_complete.234)]
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_37.2: <specific function> = specific_function constants.%FeedAnimal, @FeedAnimal(%T.loc19_17.1) [symbolic = %FeedAnimal.specific_fn.loc19_37.2 (constants.%FeedAnimal.specific_fn.ec8)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc19_32.1 [symbolic = %require_complete (constants.%require_complete.29e)]
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_37.2: <specific function> = specific_function constants.%FeedAnimal, @FeedAnimal(%T.loc19_17.1) [symbolic = %FeedAnimal.specific_fn.loc19_37.2 (constants.%FeedAnimal.specific_fn.c90)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc19_32.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %FeedAnimal.ref: %FeedAnimal.type = name_ref FeedAnimal, file.%FeedAnimal.decl [concrete = constants.%FeedAnimal]
 // CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc19_32.1 (%T.as_type) = name_ref a, %a
-// CHECK:STDOUT:     %.loc19_49.1: %Animal.type = converted constants.%T.as_type, constants.%T.fd4 [symbolic = %T.loc19_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %.loc19_49.2: %Animal.type = converted constants.%T.as_type, constants.%T.fd4 [symbolic = %T.loc19_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %FeedAnimal.specific_fn.loc19_37.1: <specific function> = specific_function %FeedAnimal.ref, @FeedAnimal(constants.%T.fd4) [symbolic = %FeedAnimal.specific_fn.loc19_37.2 (constants.%FeedAnimal.specific_fn.ec8)]
+// CHECK:STDOUT:     %.loc19_49.1: %Animal.type = converted constants.%T.as_type, constants.%T.a8c [symbolic = %T.loc19_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %.loc19_49.2: %Animal.type = converted constants.%T.as_type, constants.%T.a8c [symbolic = %T.loc19_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %FeedAnimal.specific_fn.loc19_37.1: <specific function> = specific_function %FeedAnimal.ref, @FeedAnimal(constants.%T.a8c) [symbolic = %FeedAnimal.specific_fn.loc19_37.2 (constants.%FeedAnimal.specific_fn.c90)]
 // CHECK:STDOUT:     %FeedAnimal.call: init %empty_tuple.type = call %FeedAnimal.specific_fn.loc19_37.1(%a.ref)
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -228,19 +228,19 @@ fn F() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @FeedAnimal(constants.%T.fd4) {
-// CHECK:STDOUT:   %T.loc17_15.1 => constants.%T.fd4
+// CHECK:STDOUT: specific @FeedAnimal(constants.%T.a8c) {
+// CHECK:STDOUT:   %T.loc17_15.1 => constants.%T.a8c
 // CHECK:STDOUT:   %T.as_type.loc17_30.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.36a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28a
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.234
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.29e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HandleAnimal(constants.%T.fd4) {
-// CHECK:STDOUT:   %T.loc19_17.1 => constants.%T.fd4
+// CHECK:STDOUT: specific @HandleAnimal(constants.%T.a8c) {
+// CHECK:STDOUT:   %T.loc19_17.1 => constants.%T.a8c
 // CHECK:STDOUT:   %T.as_type.loc19_32.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.36a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HandleAnimal(constants.%Animal.facet) {
@@ -250,7 +250,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
-// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_37.2 => constants.%FeedAnimal.specific_fn.82e
+// CHECK:STDOUT:   %FeedAnimal.specific_fn.loc19_37.2 => constants.%FeedAnimal.specific_fn.3e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @FeedAnimal(constants.%Animal.facet) {
diff --git a/toolchain/check/testdata/facet/convert_interface.carbon b/toolchain/check/testdata/facet/convert_interface.carbon
index 174eae0af9ed..36dd925d11ff 100644
--- a/toolchain/check/testdata/facet/convert_interface.carbon
+++ b/toolchain/check/testdata/facet/convert_interface.carbon
@@ -26,9 +26,9 @@ fn G() { F(Animal); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %Eats.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
@@ -75,7 +75,7 @@ fn G() { F(Animal); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -83,7 +83,7 @@ fn G() { F(Animal); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/facet/facet_assoc_const.carbon b/toolchain/check/testdata/facet/facet_assoc_const.carbon
index 60426e79af41..bb64e802834f 100644
--- a/toolchain/check/testdata/facet/facet_assoc_const.carbon
+++ b/toolchain/check/testdata/facet/facet_assoc_const.carbon
@@ -664,9 +664,9 @@ fn F(T:! I & J where .I1 = .J1.I2) {}
 // CHECK:STDOUT:   %assoc0: %M.assoc_type = assoc_entity element0, @M.%X [concrete]
 // CHECK:STDOUT:   %assoc1: %M.assoc_type = assoc_entity element1, @M.%Y [concrete]
 // CHECK:STDOUT:   %assoc2: %M.assoc_type = assoc_entity element2, @M.%Z [concrete]
-// CHECK:STDOUT:   %.Self.a61: %M.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.a61 [symbolic_self]
-// CHECK:STDOUT:   %M.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.a61, @M [symbolic_self]
+// CHECK:STDOUT:   %.Self.78d: %M.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.78d [symbolic_self]
+// CHECK:STDOUT:   %M.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.78d, @M [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %M.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %impl.elem1: type = impl_witness_access %M.lookup_impl_witness, element1 [symbolic_self]
 // CHECK:STDOUT:   %impl.elem2: type = impl_witness_access %M.lookup_impl_witness, element2 [symbolic_self]
@@ -686,28 +686,28 @@ fn F(T:! I & J where .I1 = .J1.I2) {}
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %M.ref: type = name_ref M, file.%M.decl [concrete = constants.%M.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc13_18: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:       %.Self.ref.loc13_18: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:       %X.ref.loc13_18: %M.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc13_18: type = facet_access_type %.Self.ref.loc13_18 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc13_18: type = converted %.Self.ref.loc13_18, %.Self.as_type.loc13_18 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem0.loc13_18: type = impl_witness_access constants.%M.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
-// CHECK:STDOUT:       %.Self.ref.loc13_23: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:       %.Self.ref.loc13_23: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:       %Y.ref.loc13_23: %M.assoc_type = name_ref Y, @Y.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:       %.Self.as_type.loc13_23: type = facet_access_type %.Self.ref.loc13_23 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc13_23: type = converted %.Self.ref.loc13_23, %.Self.as_type.loc13_23 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem1.loc13_23: type = impl_witness_access constants.%M.lookup_impl_witness, element1 [symbolic_self = constants.%impl.elem1]
-// CHECK:STDOUT:       %.Self.ref.loc13_30: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:       %.Self.ref.loc13_30: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:       %Y.ref.loc13_30: %M.assoc_type = name_ref Y, @Y.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:       %.Self.as_type.loc13_30: type = facet_access_type %.Self.ref.loc13_30 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc13_30: type = converted %.Self.ref.loc13_30, %.Self.as_type.loc13_30 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem1.loc13_30: type = impl_witness_access constants.%M.lookup_impl_witness, element1 [symbolic_self = constants.%impl.elem1]
-// CHECK:STDOUT:       %.Self.ref.loc13_35: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:       %.Self.ref.loc13_35: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:       %X.ref.loc13_35: %M.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc13_35: type = facet_access_type %.Self.ref.loc13_35 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc13_35: type = converted %.Self.ref.loc13_35, %.Self.as_type.loc13_35 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem0.loc13_35: type = impl_witness_access constants.%M.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:       %impl.elem0.subst: type = impl_witness_access_substituted %impl.elem0.loc13_35, %impl.elem1.loc13_23 [symbolic_self = constants.%impl.elem1]
-// CHECK:STDOUT:       %.Self.ref.loc13_42: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:       %.Self.ref.loc13_42: %M.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:       %Z.ref: %M.assoc_type = name_ref Z, @Z.%assoc2 [concrete = constants.%assoc2]
 // CHECK:STDOUT:       %.Self.as_type.loc13_42: type = facet_access_type %.Self.ref.loc13_42 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc13_42: type = converted %.Self.ref.loc13_42, %.Self.as_type.loc13_42 [symbolic_self = constants.%.Self.as_type]
diff --git a/toolchain/check/testdata/facet/fail_convert_class_type_to_generic_facet_value.carbon b/toolchain/check/testdata/facet/fail_convert_class_type_to_generic_facet_value.carbon
index 9060d28ddf0a..35d7a03a1d5f 100644
--- a/toolchain/check/testdata/facet/fail_convert_class_type_to_generic_facet_value.carbon
+++ b/toolchain/check/testdata/facet/fail_convert_class_type_to_generic_facet_value.carbon
@@ -45,8 +45,8 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.91ccba.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
-// CHECK:STDOUT:   %Self.dee: %Generic.type.91ccba.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
+// CHECK:STDOUT:   %Self.f48: %Generic.type.4045f4.1 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f43: type = fn_type @Generic.F, @Generic(%Scalar) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2: %Generic.F.type.f43 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd: type = assoc_entity_type @Generic, @Generic(%Scalar) [symbolic]
@@ -54,7 +54,7 @@ fn G() {
 // CHECK:STDOUT:   %GenericParam: type = class_type @GenericParam [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.884: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e7: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.f73: type = ptr_type %GenericParam [concrete]
 // CHECK:STDOUT:   %pattern_type.7c3: type = pattern_type %ptr.f73 [concrete]
 // CHECK:STDOUT:   %GenericParam.as.Destroy.impl.Op.type: type = fn_type @GenericParam.as.Destroy.impl.Op [concrete]
@@ -62,19 +62,19 @@ fn G() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %WrongGenericParam: type = class_type @WrongGenericParam [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.01c: <witness> = impl_witness @WrongGenericParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.1e6: <witness> = impl_witness @WrongGenericParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.397: type = ptr_type %WrongGenericParam [concrete]
 // CHECK:STDOUT:   %pattern_type.396: type = pattern_type %ptr.397 [concrete]
 // CHECK:STDOUT:   %WrongGenericParam.as.Destroy.impl.Op.type: type = fn_type @WrongGenericParam.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %WrongGenericParam.as.Destroy.impl.Op: %WrongGenericParam.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplsGeneric: type = class_type @ImplsGeneric [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9ca: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.813: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.011: type = ptr_type %ImplsGeneric [concrete]
 // CHECK:STDOUT:   %pattern_type.2db: type = pattern_type %ptr.011 [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op.type: type = fn_type @ImplsGeneric.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op: %ImplsGeneric.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.769: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
-// CHECK:STDOUT:   %Self.f84: %Generic.type.769 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.cfe: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
+// CHECK:STDOUT:   %Self.b8f: %Generic.type.cfe = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.4cf: type = fn_type @Generic.F, @Generic(%GenericParam) [concrete]
 // CHECK:STDOUT:   %Generic.F.118: %Generic.F.type.4cf = struct_value () [concrete]
 // CHECK:STDOUT:   %Generic.assoc_type.713: type = assoc_entity_type @Generic, @Generic(%GenericParam) [concrete]
@@ -82,11 +82,11 @@ fn G() {
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness file.%Generic.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F.type: type = fn_type @ImplsGeneric.as.Generic.impl.F [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F: %ImplsGeneric.as.Generic.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Generic.type.91ccba.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
-// CHECK:STDOUT:   %U: %Generic.type.91ccba.2 = bind_symbolic_name U, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.80f: type = pattern_type %Generic.type.91ccba.2 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
+// CHECK:STDOUT:   %U: %Generic.type.4045f4.2 = bind_symbolic_name U, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.3c6: type = pattern_type %Generic.type.4045f4.2 [symbolic]
 // CHECK:STDOUT:   %CallGenericMethod.type: type = fn_type @CallGenericMethod [concrete]
 // CHECK:STDOUT:   %CallGenericMethod: %CallGenericMethod.type = struct_value () [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
@@ -126,23 +126,23 @@ fn G() {
 // CHECK:STDOUT:     %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:     %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:     %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
-// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.769]
+// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.cfe]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Generic.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Generic.impl.%ImplsGeneric.as.Generic.impl.F.decl), @ImplsGeneric.as.Generic.impl [concrete]
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness %Generic.impl_witness_table [concrete = constants.%Generic.impl_witness]
 // CHECK:STDOUT:   %CallGenericMethod.decl: %CallGenericMethod.type = fn_decl @CallGenericMethod [concrete = constants.%CallGenericMethod] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type (%pattern_type.80f) = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type (%pattern_type.3c6) = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc27_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc27_22.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc27: type = splice_block %Generic.type.loc27_45.2 [symbolic = %Generic.type.loc27_45.1 (constants.%Generic.type.91ccba.2)] {
+// CHECK:STDOUT:     %.loc27: type = splice_block %Generic.type.loc27_45.2 [symbolic = %Generic.type.loc27_45.1 (constants.%Generic.type.4045f4.2)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %T.ref: type = name_ref T, %T.loc27_22.2 [symbolic = %T.loc27_22.1 (constants.%T)]
-// CHECK:STDOUT:       %Generic.type.loc27_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc27_45.1 (constants.%Generic.type.91ccba.2)]
+// CHECK:STDOUT:       %Generic.type.loc27_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc27_45.1 (constants.%Generic.type.4045f4.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc27_32.2: @CallGenericMethod.%Generic.type.loc27_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc27_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc27_32.2: @CallGenericMethod.%Generic.type.loc27_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc27_32.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
 // CHECK:STDOUT: }
@@ -151,15 +151,15 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc15_19.1: type = bind_symbolic_name Scalar, 0 [symbolic = %Scalar.loc15_19.1 (constants.%Scalar)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc15_19.1)> [symbolic = %Generic.type (constants.%Generic.type.91ccba.1)]
-// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee)]
+// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc15_19.1)> [symbolic = %Generic.type (constants.%Generic.type.4045f4.1)]
+// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%Scalar.loc15_19.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f43)]
 // CHECK:STDOUT:   %Generic.F: @Generic.%Generic.F.type (%Generic.F.type.f43) = struct_value () [symbolic = %Generic.F (constants.%Generic.F.8a2)]
 // CHECK:STDOUT:   %Generic.assoc_type: type = assoc_entity_type @Generic, @Generic(%Scalar.loc15_19.1) [symbolic = %Generic.assoc_type (constants.%Generic.assoc_type.0fd)]
 // CHECK:STDOUT:   %assoc0.loc16_9.2: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc16_9.2 (constants.%assoc0.296)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee)]
+// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48)]
 // CHECK:STDOUT:     %Generic.F.decl: @Generic.%Generic.F.type (%Generic.F.type.f43) = fn_decl @Generic.F [symbolic = @Generic.%Generic.F (constants.%Generic.F.8a2)] {} {}
 // CHECK:STDOUT:     %assoc0.loc16_9.1: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc16_9.2 (constants.%assoc0.296)]
 // CHECK:STDOUT:
@@ -230,7 +230,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%GenericParam [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   impl_decl @GenericParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@GenericParam.as.Destroy.impl.%GenericParam.as.Destroy.impl.Op.decl), @GenericParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.884]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -242,7 +242,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%WrongGenericParam [concrete = constants.%WrongGenericParam]
 // CHECK:STDOUT:   impl_decl @WrongGenericParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@WrongGenericParam.as.Destroy.impl.%WrongGenericParam.as.Destroy.impl.Op.decl), @WrongGenericParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.01c]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.1e6]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -254,7 +254,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ImplsGeneric [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:   impl_decl @ImplsGeneric.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Destroy.impl.%ImplsGeneric.as.Destroy.impl.Op.decl), @ImplsGeneric.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9ca]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.813]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -262,7 +262,7 @@ fn G() {
 // CHECK:STDOUT:   .Self = constants.%ImplsGeneric
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc15_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1)) {
+// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc15_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1)) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -277,11 +277,11 @@ fn G() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc27_22.2: type, %U.loc27_32.2: @CallGenericMethod.%Generic.type.loc27_45.1 (%Generic.type.91ccba.2)) {
+// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc27_22.2: type, %U.loc27_32.2: @CallGenericMethod.%Generic.type.loc27_45.1 (%Generic.type.4045f4.2)) {
 // CHECK:STDOUT:   %T.loc27_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc27_22.1 (constants.%T)]
-// CHECK:STDOUT:   %Generic.type.loc27_45.1: type = facet_type <@Generic, @Generic(%T.loc27_22.1)> [symbolic = %Generic.type.loc27_45.1 (constants.%Generic.type.91ccba.2)]
-// CHECK:STDOUT:   %U.loc27_32.1: @CallGenericMethod.%Generic.type.loc27_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc27_32.1 (constants.%U)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc27_45.1 [symbolic = %pattern_type (constants.%pattern_type.80f)]
+// CHECK:STDOUT:   %Generic.type.loc27_45.1: type = facet_type <@Generic, @Generic(%T.loc27_22.1)> [symbolic = %Generic.type.loc27_45.1 (constants.%Generic.type.4045f4.2)]
+// CHECK:STDOUT:   %U.loc27_32.1: @CallGenericMethod.%Generic.type.loc27_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc27_32.1 (constants.%U)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc27_45.1 [symbolic = %pattern_type (constants.%pattern_type.3c6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -303,14 +303,14 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc15_19.1 => constants.%Scalar
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.dee) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.f48) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%GenericParam) {
 // CHECK:STDOUT:   %Scalar.loc15_19.1 => constants.%GenericParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.769
-// CHECK:STDOUT:   %Self.2 => constants.%Self.f84
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b8f
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.118
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
@@ -325,9 +325,9 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%T, constants.%U) {
 // CHECK:STDOUT:   %T.loc27_22.1 => constants.%T
-// CHECK:STDOUT:   %Generic.type.loc27_45.1 => constants.%Generic.type.91ccba.2
+// CHECK:STDOUT:   %Generic.type.loc27_45.1 => constants.%Generic.type.4045f4.2
 // CHECK:STDOUT:   %U.loc27_32.1 => constants.%U
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.80f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3c6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%WrongGenericParam) {
diff --git a/toolchain/check/testdata/facet/fail_convert_facet_value_to_missing_impl.carbon b/toolchain/check/testdata/facet/fail_convert_facet_value_to_missing_impl.carbon
index 08ad572c1912..cf6c3f706802 100644
--- a/toolchain/check/testdata/facet/fail_convert_facet_value_to_missing_impl.carbon
+++ b/toolchain/check/testdata/facet/fail_convert_facet_value_to_missing_impl.carbon
@@ -30,24 +30,24 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
-// CHECK:STDOUT:   %Self.1b5: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3c7: %Eats.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %T.1b5: %Eats.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a05: type = pattern_type %Eats.type [concrete]
-// CHECK:STDOUT:   %T.as_type.27d: type = facet_access_type %T.1b5 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b4: type = pattern_type %T.as_type.27d [symbolic]
+// CHECK:STDOUT:   %T.3c7: %Eats.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.08e: type = pattern_type %Eats.type [concrete]
+// CHECK:STDOUT:   %T.as_type.844: type = facet_access_type %T.3c7 [symbolic]
+// CHECK:STDOUT:   %pattern_type.de8: type = pattern_type %T.as_type.844 [symbolic]
 // CHECK:STDOUT:   %Feed.type: type = fn_type @Feed [concrete]
 // CHECK:STDOUT:   %Feed: %Feed.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.c75: <witness> = require_complete_type %T.as_type.27d [symbolic]
-// CHECK:STDOUT:   %T.fd4: %Animal.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
-// CHECK:STDOUT:   %T.as_type.2ad: type = facet_access_type %T.fd4 [symbolic]
-// CHECK:STDOUT:   %pattern_type.36a: type = pattern_type %T.as_type.2ad [symbolic]
+// CHECK:STDOUT:   %require_complete.a45: <witness> = require_complete_type %T.as_type.844 [symbolic]
+// CHECK:STDOUT:   %T.a8c: %Animal.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %T.as_type.b5e: type = facet_access_type %T.a8c [symbolic]
+// CHECK:STDOUT:   %pattern_type.28a: type = pattern_type %T.as_type.b5e [symbolic]
 // CHECK:STDOUT:   %HandleAnimal.type: type = fn_type @HandleAnimal [concrete]
 // CHECK:STDOUT:   %HandleAnimal: %HandleAnimal.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.234: <witness> = require_complete_type %T.as_type.2ad [symbolic]
+// CHECK:STDOUT:   %require_complete.29e: <witness> = require_complete_type %T.as_type.b5e [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -69,45 +69,45 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
 // CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
 // CHECK:STDOUT:   %Feed.decl: %Feed.type = fn_decl @Feed [concrete = constants.%Feed] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a05 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type (%pattern_type.2b4) = binding_pattern e [concrete]
-// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type (%pattern_type.2b4) = value_param_pattern %e.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.08e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %e.patt: @Feed.%pattern_type (%pattern_type.de8) = binding_pattern e [concrete]
+// CHECK:STDOUT:     %e.param_patt: @Feed.%pattern_type (%pattern_type.de8) = value_param_pattern %e.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc18_13: type = splice_block %Eats.ref [concrete = constants.%Eats.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc18_9.2: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_9.1 (constants.%T.1b5)]
-// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc18_22.1 (%T.as_type.27d) = value_param call_param0
-// CHECK:STDOUT:     %.loc18_22.1: type = splice_block %.loc18_22.2 [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.27d)] {
-// CHECK:STDOUT:       %T.ref: %Eats.type = name_ref T, %T.loc18_9.2 [symbolic = %T.loc18_9.1 (constants.%T.1b5)]
-// CHECK:STDOUT:       %T.as_type.loc18_22.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:       %.loc18_22.2: type = converted %T.ref, %T.as_type.loc18_22.2 [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.27d)]
+// CHECK:STDOUT:     %T.loc18_9.2: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_9.1 (constants.%T.3c7)]
+// CHECK:STDOUT:     %e.param: @Feed.%T.as_type.loc18_22.1 (%T.as_type.844) = value_param call_param0
+// CHECK:STDOUT:     %.loc18_22.1: type = splice_block %.loc18_22.2 [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.844)] {
+// CHECK:STDOUT:       %T.ref: %Eats.type = name_ref T, %T.loc18_9.2 [symbolic = %T.loc18_9.1 (constants.%T.3c7)]
+// CHECK:STDOUT:       %T.as_type.loc18_22.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.844)]
+// CHECK:STDOUT:       %.loc18_22.2: type = converted %T.ref, %T.as_type.loc18_22.2 [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.844)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc18_22.1 (%T.as_type.27d) = bind_name e, %e.param
+// CHECK:STDOUT:     %e: @Feed.%T.as_type.loc18_22.1 (%T.as_type.844) = bind_name e, %e.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HandleAnimal.decl: %HandleAnimal.type = fn_decl @HandleAnimal [concrete = constants.%HandleAnimal] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3b0 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.36a) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.36a) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.bd6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: @HandleAnimal.%pattern_type (%pattern_type.28a) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @HandleAnimal.%pattern_type (%pattern_type.28a) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc27_21: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc27_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc27_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.2ad) = value_param call_param0
-// CHECK:STDOUT:     %.loc27_32.1: type = splice_block %.loc27_32.2 [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.2ad)] {
-// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc27_17.2 [symbolic = %T.loc27_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:       %T.as_type.loc27_32.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:       %.loc27_32.2: type = converted %T.ref, %T.as_type.loc27_32.2 [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.2ad)]
+// CHECK:STDOUT:     %T.loc27_17.2: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc27_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:     %a.param: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.b5e) = value_param call_param0
+// CHECK:STDOUT:     %.loc27_32.1: type = splice_block %.loc27_32.2 [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.b5e)] {
+// CHECK:STDOUT:       %T.ref: %Animal.type = name_ref T, %T.loc27_17.2 [symbolic = %T.loc27_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:       %T.as_type.loc27_32.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:       %.loc27_32.2: type = converted %T.ref, %T.as_type.loc27_32.2 [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.b5e)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.2ad) = bind_name a, %a.param
+// CHECK:STDOUT:     %a: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.b5e) = bind_name a, %a.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Eats {
-// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1b5]
+// CHECK:STDOUT:   %Self: %Eats.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c7]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -115,7 +115,7 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -123,44 +123,44 @@ fn HandleAnimal[T:! Animal](a: T) { Feed(a); }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Feed(%T.loc18_9.2: %Eats.type) {
-// CHECK:STDOUT:   %T.loc18_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_9.1 (constants.%T.1b5)]
-// CHECK:STDOUT:   %T.as_type.loc18_22.1: type = facet_access_type %T.loc18_9.1 [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.27d)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc18_22.1 [symbolic = %pattern_type (constants.%pattern_type.2b4)]
+// CHECK:STDOUT:   %T.loc18_9.1: %Eats.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_9.1 (constants.%T.3c7)]
+// CHECK:STDOUT:   %T.as_type.loc18_22.1: type = facet_access_type %T.loc18_9.1 [symbolic = %T.as_type.loc18_22.1 (constants.%T.as_type.844)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc18_22.1 [symbolic = %pattern_type (constants.%pattern_type.de8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc18_22.1 [symbolic = %require_complete (constants.%require_complete.c75)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc18_22.1 [symbolic = %require_complete (constants.%require_complete.a45)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc18_22.1 (%T.as_type.27d)) {
+// CHECK:STDOUT:   fn(%e.param: @Feed.%T.as_type.loc18_22.1 (%T.as_type.844)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HandleAnimal(%T.loc27_17.2: %Animal.type) {
-// CHECK:STDOUT:   %T.loc27_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc27_17.1 (constants.%T.fd4)]
-// CHECK:STDOUT:   %T.as_type.loc27_32.1: type = facet_access_type %T.loc27_17.1 [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.2ad)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc27_32.1 [symbolic = %pattern_type (constants.%pattern_type.36a)]
+// CHECK:STDOUT:   %T.loc27_17.1: %Animal.type = bind_symbolic_name T, 0 [symbolic = %T.loc27_17.1 (constants.%T.a8c)]
+// CHECK:STDOUT:   %T.as_type.loc27_32.1: type = facet_access_type %T.loc27_17.1 [symbolic = %T.as_type.loc27_32.1 (constants.%T.as_type.b5e)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc27_32.1 [symbolic = %pattern_type (constants.%pattern_type.28a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc27_32.1 [symbolic = %require_complete (constants.%require_complete.234)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc27_32.1 [symbolic = %require_complete (constants.%require_complete.29e)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.2ad)) {
+// CHECK:STDOUT:   fn(%a.param: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.b5e)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %Feed.ref: %Feed.type = name_ref Feed, file.%Feed.decl [concrete = constants.%Feed]
-// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.2ad) = name_ref a, %a
+// CHECK:STDOUT:     %a.ref: @HandleAnimal.%T.as_type.loc27_32.1 (%T.as_type.b5e) = name_ref a, %a
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Feed(constants.%T.1b5) {
-// CHECK:STDOUT:   %T.loc18_9.1 => constants.%T.1b5
-// CHECK:STDOUT:   %T.as_type.loc18_22.1 => constants.%T.as_type.27d
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2b4
+// CHECK:STDOUT: specific @Feed(constants.%T.3c7) {
+// CHECK:STDOUT:   %T.loc18_9.1 => constants.%T.3c7
+// CHECK:STDOUT:   %T.as_type.loc18_22.1 => constants.%T.as_type.844
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.de8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HandleAnimal(constants.%T.fd4) {
-// CHECK:STDOUT:   %T.loc27_17.1 => constants.%T.fd4
-// CHECK:STDOUT:   %T.as_type.loc27_32.1 => constants.%T.as_type.2ad
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.36a
+// CHECK:STDOUT: specific @HandleAnimal(constants.%T.a8c) {
+// CHECK:STDOUT:   %T.loc27_17.1 => constants.%T.a8c
+// CHECK:STDOUT:   %T.as_type.loc27_32.1 => constants.%T.as_type.b5e
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/facet/fail_convert_type_erased_type_to_facet.carbon b/toolchain/check/testdata/facet/fail_convert_type_erased_type_to_facet.carbon
index bb8c44624cd4..71a1b9eae6a6 100644
--- a/toolchain/check/testdata/facet/fail_convert_type_erased_type_to_facet.carbon
+++ b/toolchain/check/testdata/facet/fail_convert_type_erased_type_to_facet.carbon
@@ -35,7 +35,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
-// CHECK:STDOUT:   %Self.fd4: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a8c: %Animal.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Goat: type = class_type @Goat [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -49,7 +49,7 @@ fn F() {
 // CHECK:STDOUT:   %Animal.impl_witness: <witness> = impl_witness file.%Animal.impl_witness_table [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %a: %Animal.type = bind_symbolic_name a, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3b0: type = pattern_type %Animal.type [concrete]
+// CHECK:STDOUT:   %pattern_type.bd6: type = pattern_type %Animal.type [concrete]
 // CHECK:STDOUT:   %WalkAnimal.type: type = fn_type @WalkAnimal [concrete]
 // CHECK:STDOUT:   %WalkAnimal: %WalkAnimal.type = struct_value () [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
@@ -85,7 +85,7 @@ fn F() {
 // CHECK:STDOUT:   %Animal.impl_witness_table = impl_witness_table (), @Goat.as.Animal.impl [concrete]
 // CHECK:STDOUT:   %Animal.impl_witness: <witness> = impl_witness %Animal.impl_witness_table [concrete = constants.%Animal.impl_witness]
 // CHECK:STDOUT:   %WalkAnimal.decl: %WalkAnimal.type = fn_decl @WalkAnimal [concrete = constants.%WalkAnimal] {
-// CHECK:STDOUT:     %a.patt: %pattern_type.3b0 = symbolic_binding_pattern a, 0 [concrete]
+// CHECK:STDOUT:     %a.patt: %pattern_type.bd6 = symbolic_binding_pattern a, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc20: type = splice_block %Animal.ref [concrete = constants.%Animal.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -97,7 +97,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Animal {
-// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fd4]
+// CHECK:STDOUT:   %Self: %Animal.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a8c]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/facet/fail_deduction_uses_runtime_type_conversion.carbon b/toolchain/check/testdata/facet/fail_deduction_uses_runtime_type_conversion.carbon
index 2c3d354540e7..6291dd5fab96 100644
--- a/toolchain/check/testdata/facet/fail_deduction_uses_runtime_type_conversion.carbon
+++ b/toolchain/check/testdata/facet/fail_deduction_uses_runtime_type_conversion.carbon
@@ -54,7 +54,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:   %HoldsType.cc9: type = class_type @HoldsType, @HoldsType(%T.6eb) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d43: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.a65: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
 // CHECK:STDOUT:   %ptr.47e: type = ptr_type %HoldsType.cc9 [symbolic]
 // CHECK:STDOUT:   %pattern_type.c39: type = pattern_type %ptr.47e [symbolic]
 // CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T.6eb) [symbolic]
@@ -62,27 +62,27 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %RuntimeConvertFrom: type = class_type @RuntimeConvertFrom [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.99d: <witness> = impl_witness @RuntimeConvertFrom.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.efa: <witness> = impl_witness @RuntimeConvertFrom.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.415: type = ptr_type %RuntimeConvertFrom [concrete]
 // CHECK:STDOUT:   %pattern_type.b92: type = pattern_type %ptr.415 [concrete]
 // CHECK:STDOUT:   %RuntimeConvertFrom.as.Destroy.impl.Op.type: type = fn_type @RuntimeConvertFrom.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %RuntimeConvertFrom.as.Destroy.impl.Op: %RuntimeConvertFrom.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %RuntimeConvertTo: type = class_type @RuntimeConvertTo [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8af: <witness> = impl_witness @RuntimeConvertTo.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.445: <witness> = impl_witness @RuntimeConvertTo.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.339: type = ptr_type %RuntimeConvertTo [concrete]
 // CHECK:STDOUT:   %pattern_type.a4a: type = pattern_type %ptr.339 [concrete]
 // CHECK:STDOUT:   %RuntimeConvertTo.as.Destroy.impl.Op.type: type = fn_type @RuntimeConvertTo.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %RuntimeConvertTo.as.Destroy.impl.Op: %RuntimeConvertTo.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.580: type = facet_type <@ImplicitAs, @ImplicitAs(%RuntimeConvertTo)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.50f: type = facet_type <@ImplicitAs, @ImplicitAs(%RuntimeConvertTo)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.50a: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%RuntimeConvertTo) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness file.%ImplicitAs.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.f64: type = pattern_type %RuntimeConvertFrom [concrete]
 // CHECK:STDOUT:   %pattern_type.109: type = pattern_type %RuntimeConvertTo [concrete]
 // CHECK:STDOUT:   %RuntimeConvertFrom.as.ImplicitAs.impl.Convert.type: type = fn_type @RuntimeConvertFrom.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %RuntimeConvertFrom.as.ImplicitAs.impl.Convert: %RuntimeConvertFrom.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.580 = facet_value %RuntimeConvertFrom, (%ImplicitAs.impl_witness) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.50f = facet_value %RuntimeConvertFrom, (%ImplicitAs.impl_witness) [concrete]
 // CHECK:STDOUT:   %RuntimeConvertTo.val: %RuntimeConvertTo = struct_value () [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %tuple.elem0: type = tuple_access %T.6eb, element0 [symbolic]
@@ -99,7 +99,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %from: %RuntimeConvertFrom = bind_symbolic_name from, 0 [symbolic]
 // CHECK:STDOUT:   %RuntimeConvertFrom.val: %RuntimeConvertFrom = struct_value () [concrete]
-// CHECK:STDOUT:   %.f4e: type = fn_type_with_self_type %ImplicitAs.Convert.type.50a, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %.61b: type = fn_type_with_self_type %ImplicitAs.Convert.type.50a, %ImplicitAs.facet [concrete]
 // CHECK:STDOUT:   %RuntimeConvertFrom.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %from, %RuntimeConvertFrom.as.ImplicitAs.impl.Convert [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -141,7 +141,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %RuntimeConvertTo.ref: type = name_ref RuntimeConvertTo, file.%RuntimeConvertTo.decl [concrete = constants.%RuntimeConvertTo]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%RuntimeConvertTo)> [concrete = constants.%ImplicitAs.type.580]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%RuntimeConvertTo)> [concrete = constants.%ImplicitAs.type.50f]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (@RuntimeConvertFrom.as.ImplicitAs.impl.%RuntimeConvertFrom.as.ImplicitAs.impl.Convert.decl), @RuntimeConvertFrom.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness]
@@ -192,7 +192,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT: generic impl @HoldsType.as.Destroy.impl(@HoldsType.%T.loc17_17.2: %tuple.type) {
 // CHECK:STDOUT:   %T: %tuple.type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.6eb)]
 // CHECK:STDOUT:   %HoldsType: type = class_type @HoldsType, @HoldsType(%T) [symbolic = %HoldsType (constants.%HoldsType.cc9)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d43)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @HoldsType.%Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a65)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %HoldsType.as.Destroy.impl.Op.type: type = fn_type @HoldsType.as.Destroy.impl.Op, @HoldsType.as.Destroy.impl(%T) [symbolic = %HoldsType.as.Destroy.impl.Op.type (constants.%HoldsType.as.Destroy.impl.Op.type)]
@@ -280,7 +280,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%HoldsType.cc9 [symbolic = @HoldsType.as.Destroy.impl.%HoldsType (constants.%HoldsType.cc9)]
 // CHECK:STDOUT:     impl_decl @HoldsType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@HoldsType.as.Destroy.impl.%HoldsType.as.Destroy.impl.Op.decl), @HoldsType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.6eb) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d43)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @HoldsType.as.Destroy.impl(constants.%T.6eb) [symbolic = @HoldsType.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a65)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -293,7 +293,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%RuntimeConvertFrom [concrete = constants.%RuntimeConvertFrom]
 // CHECK:STDOUT:   impl_decl @RuntimeConvertFrom.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@RuntimeConvertFrom.as.Destroy.impl.%RuntimeConvertFrom.as.Destroy.impl.Op.decl), @RuntimeConvertFrom.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.99d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.efa]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -305,7 +305,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%RuntimeConvertTo [concrete = constants.%RuntimeConvertTo]
 // CHECK:STDOUT:   impl_decl @RuntimeConvertTo.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@RuntimeConvertTo.as.Destroy.impl.%RuntimeConvertTo.as.Destroy.impl.Op.decl), @RuntimeConvertTo.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8af]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.445]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -373,7 +373,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
 // CHECK:STDOUT:   %from.ref: %RuntimeConvertFrom = name_ref from, %from [symbolic = constants.%from]
 // CHECK:STDOUT:   %holds_to.ref: %HoldsType.066 = name_ref holds_to, %holds_to
-// CHECK:STDOUT:   %impl.elem0: %.f4e = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%RuntimeConvertFrom.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %impl.elem0: %.61b = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%RuntimeConvertFrom.as.ImplicitAs.impl.Convert]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method constants.%from, %impl.elem0 [symbolic = constants.%RuntimeConvertFrom.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %.loc41_19.1: ref %RuntimeConvertTo = temporary_storage
 // CHECK:STDOUT:   %RuntimeConvertFrom.as.ImplicitAs.impl.Convert.call: init %RuntimeConvertTo = call %bound_method(constants.%from) to %.loc41_19.1
@@ -400,7 +400,7 @@ fn G(holds_to: HoldsType((RuntimeConvertTo, ))) {
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl(constants.%T.6eb) {
 // CHECK:STDOUT:   %T => constants.%T.6eb
 // CHECK:STDOUT:   %HoldsType => constants.%HoldsType.cc9
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d43
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a65
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HoldsType.as.Destroy.impl.Op(constants.%T.6eb) {
diff --git a/toolchain/check/testdata/facet/runtime_value.carbon b/toolchain/check/testdata/facet/runtime_value.carbon
index e1306899584e..b9070b0f8fc6 100644
--- a/toolchain/check/testdata/facet/runtime_value.carbon
+++ b/toolchain/check/testdata/facet/runtime_value.carbon
@@ -116,7 +116,7 @@ fn F(T: Z where .X = (), v: T.X);
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %I.type [concrete]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -125,7 +125,7 @@ fn F(T: Z where .X = (), v: T.X);
 // CHECK:STDOUT: fn @F(%c.param: %C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   name_binding_decl {
-// CHECK:STDOUT:     %a.patt: %pattern_type.2b5 = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.patt: %pattern_type.71c = binding_pattern a [concrete]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %i.ref: %C.elem = name_ref i, @C.%.loc6 [concrete = @C.%.loc6]
@@ -143,7 +143,7 @@ fn F(T: Z where .X = (), v: T.X);
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %facet_type: type = facet_type <@I & @J> [concrete]
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %facet_type [concrete]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -152,7 +152,7 @@ fn F(T: Z where .X = (), v: T.X);
 // CHECK:STDOUT: fn @F(%c.param: %C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   name_binding_decl {
-// CHECK:STDOUT:     %a.patt: %pattern_type.2b5 = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.patt: %pattern_type.71c = binding_pattern a [concrete]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %ij.ref: %C.elem = name_ref ij, @C.%.loc7_9 [concrete = @C.%.loc7_9]
diff --git a/toolchain/check/testdata/facet/self_in_interface_param.carbon b/toolchain/check/testdata/facet/self_in_interface_param.carbon
index e50e6a442d9a..8ab7659453f4 100644
--- a/toolchain/check/testdata/facet/self_in_interface_param.carbon
+++ b/toolchain/check/testdata/facet/self_in_interface_param.carbon
@@ -29,18 +29,18 @@ fn G(_:! I(.Self) where .I1 = ()) {}
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.962: type = facet_type <@I, @I(%.Self.644)> [symbolic_self]
-// CHECK:STDOUT:   %.Self.50d: %I.type.962 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %I.type.848: type = facet_type <@I, @I(%.Self.644)> [symbolic_self]
+// CHECK:STDOUT:   %.Self.7b5: %I.type.848 = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %I.assoc_type.180: type = assoc_entity_type @I, @I(%.Self.644) [symbolic_self]
 // CHECK:STDOUT:   %assoc0.357: %I.assoc_type.180 = assoc_entity element0, @I.%I1 [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.50d [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness.aee: <witness> = lookup_impl_witness %.Self.50d, @I, @I(%.Self.644) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness.aee, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.7b5 [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness.1d2: <witness> = lookup_impl_witness %.Self.7b5, @I, @I(%.Self.644) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness.1d2, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I, @I(%.Self.644) where %impl.elem0 = %empty_tuple.type> [symbolic_self]
-// CHECK:STDOUT:   %T.735: %I_where.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3cf: type = pattern_type %I_where.type [symbolic_self]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.735 [symbolic]
-// CHECK:STDOUT:   %I.lookup_impl_witness.262: <witness> = lookup_impl_witness %T.735, @I, @I(%.Self.644) [symbolic]
+// CHECK:STDOUT:   %T.7fa: %I_where.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.068: type = pattern_type %I_where.type [symbolic_self]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.7fa [symbolic]
+// CHECK:STDOUT:   %I.lookup_impl_witness.b6f: <witness> = lookup_impl_witness %T.7fa, @I, @I(%.Self.644) [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
@@ -49,45 +49,45 @@ fn G(_:! I(.Self) where .I1 = ()) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3cf = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.068 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.cb1 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref: %I_where.type = name_ref T, %T.loc18_6.2 [symbolic = %T.loc18_6.1 (constants.%T.735)]
+// CHECK:STDOUT:     %T.ref: %I_where.type = name_ref T, %T.loc18_6.2 [symbolic = %T.loc18_6.1 (constants.%T.7fa)]
 // CHECK:STDOUT:     %.loc18_39.1: %I.assoc_type.180 = specific_constant @I1.%assoc0, @I(constants.%.Self.644) [symbolic_self = constants.%assoc0.357]
 // CHECK:STDOUT:     %I1.ref.loc18_39: %I.assoc_type.180 = name_ref I1, %.loc18_39.1 [symbolic_self = constants.%assoc0.357]
 // CHECK:STDOUT:     %T.as_type.loc18_39.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc18_39.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc18_39.2: type = converted %T.ref, %T.as_type.loc18_39.2 [symbolic = %T.as_type.loc18_39.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc18_39: type = impl_witness_access constants.%I.lookup_impl_witness.262, element0 [concrete = constants.%empty_tuple.type]
+// CHECK:STDOUT:     %impl.elem0.loc18_39: type = impl_witness_access constants.%I.lookup_impl_witness.b6f, element0 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %.loc18_19.1: type = splice_block %.loc18_19.2 [symbolic_self = constants.%I_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:       %.Self.ref.loc18_12: type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.644]
-// CHECK:STDOUT:       %I.type: type = facet_type <@I, @I(constants.%.Self.644)> [symbolic_self = constants.%I.type.962]
+// CHECK:STDOUT:       %I.type: type = facet_type <@I, @I(constants.%.Self.644)> [symbolic_self = constants.%I.type.848]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc18_25: %I.type.962 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.50d]
+// CHECK:STDOUT:       %.Self.ref.loc18_25: %I.type.848 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.7b5]
 // CHECK:STDOUT:       %.loc18_25.1: %I.assoc_type.180 = specific_constant @I1.%assoc0, @I(constants.%.Self.644) [symbolic_self = constants.%assoc0.357]
 // CHECK:STDOUT:       %I1.ref.loc18_25: %I.assoc_type.180 = name_ref I1, %.loc18_25.1 [symbolic_self = constants.%assoc0.357]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref.loc18_25 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc18_25.2: type = converted %.Self.ref.loc18_25, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc18_25: type = impl_witness_access constants.%I.lookup_impl_witness.aee, element0 [symbolic_self = constants.%impl.elem0]
+// CHECK:STDOUT:       %impl.elem0.loc18_25: type = impl_witness_access constants.%I.lookup_impl_witness.1d2, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:       %.loc18_32.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc18_32.2: type = converted %.loc18_32.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:       %.loc18_19.2: type = where_expr %.Self.2 [symbolic_self = constants.%I_where.type] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%I.type.962
+// CHECK:STDOUT:         requirement_base_facet_type constants.%I.type.848
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc18_25, %.loc18_32.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc18_6.2: %I_where.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_6.1 (constants.%T.735)]
+// CHECK:STDOUT:     %T.loc18_6.2: %I_where.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_6.1 (constants.%T.7fa)]
 // CHECK:STDOUT:     %return.param: ref %empty_tuple.type = out_param call_param0
 // CHECK:STDOUT:     %return: ref %empty_tuple.type = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%T.loc18_6.2: %I_where.type) {
-// CHECK:STDOUT:   %T.loc18_6.1: %I_where.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_6.1 (constants.%T.735)]
+// CHECK:STDOUT:   %T.loc18_6.1: %I_where.type = bind_symbolic_name T, 0 [symbolic = %T.loc18_6.1 (constants.%T.7fa)]
 // CHECK:STDOUT:   %T.as_type.loc18_39.1: type = facet_access_type %T.loc18_6.1 [symbolic = %T.as_type.loc18_39.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc18_6.1, @I, @I(constants.%.Self.644) [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness.262)]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc18_6.1, @I, @I(constants.%.Self.644) [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness.b6f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -100,9 +100,9 @@ fn G(_:! I(.Self) where .I1 = ()) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @F(constants.%T.735) {
-// CHECK:STDOUT:   %T.loc18_6.1 => constants.%T.735
+// CHECK:STDOUT: specific @F(constants.%T.7fa) {
+// CHECK:STDOUT:   %T.loc18_6.1 => constants.%T.7fa
 // CHECK:STDOUT:   %T.as_type.loc18_39.1 => constants.%T.as_type
-// CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.lookup_impl_witness.262
+// CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.lookup_impl_witness.b6f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/for/actual.carbon b/toolchain/check/testdata/for/actual.carbon
index 2b24be1b5b9b..7f12ab48e059 100644
--- a/toolchain/check/testdata/for/actual.carbon
+++ b/toolchain/check/testdata/for/actual.carbon
@@ -70,16 +70,16 @@ fn Read() {
 // CHECK:STDOUT:   %IntRange.Make.type.51f: type = fn_type @IntRange.Make, @IntRange(%N.c80) [symbolic]
 // CHECK:STDOUT:   %IntRange.Make.2ec: %IntRange.Make.type.51f = struct_value () [symbolic]
 // CHECK:STDOUT:   %Iterate.type: type = facet_type <@Iterate> [concrete]
-// CHECK:STDOUT:   %.Self.ef1: %Iterate.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.d62: %Iterate.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %Iterate.assoc_type: type = assoc_entity_type @Iterate [concrete]
 // CHECK:STDOUT:   %assoc1.02e: %Iterate.assoc_type = assoc_entity element1, imports.%Core.import_ref.9e6 [concrete]
-// CHECK:STDOUT:   %.Self.as_type.935: type = facet_access_type %.Self.ef1 [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type.8ce: type = facet_access_type %.Self.d62 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %Iterate.lookup_impl_witness.65a: <witness> = lookup_impl_witness %.Self.ef1, @Iterate [symbolic_self]
-// CHECK:STDOUT:   %impl.elem1.164: type = impl_witness_access %Iterate.lookup_impl_witness.65a, element1 [symbolic_self]
+// CHECK:STDOUT:   %Iterate.lookup_impl_witness.6c6: <witness> = lookup_impl_witness %.Self.d62, @Iterate [symbolic_self]
+// CHECK:STDOUT:   %impl.elem1.b8a: type = impl_witness_access %Iterate.lookup_impl_witness.6c6, element1 [symbolic_self]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.19f: type = impl_witness_access %Iterate.lookup_impl_witness.65a, element0 [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.70d: type = impl_witness_access %Iterate.lookup_impl_witness.6c6, element0 [symbolic_self]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %Optional.type: type = generic_class_type @Optional [concrete]
 // CHECK:STDOUT:   %Optional.generic: %Optional.type = struct_value () [concrete]
@@ -90,18 +90,18 @@ fn Read() {
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.1fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.2b9, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.63f: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b48, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
 // CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
 // CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.3a2: <witness> = impl_witness imports.%Destroy.impl_witness_table.1b4, @Int.as.Destroy.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.bcd: <witness> = impl_witness imports.%Destroy.impl_witness_table.2dc, @Int.as.Destroy.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op: %Int.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.784: type = ptr_type %Int.49d0e6.1 [symbolic]
@@ -115,19 +115,19 @@ fn Read() {
 // CHECK:STDOUT:   %OrderedWith.Less.type.f19: type = fn_type @OrderedWith.Less, @OrderedWith(%Other) [symbolic]
 // CHECK:STDOUT:   %OrderedWith.Less.02e: %OrderedWith.Less.type.f19 = struct_value () [symbolic]
 // CHECK:STDOUT:   %OrderedWith.assoc_type.03c: type = assoc_entity_type @OrderedWith, @OrderedWith(%Other) [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type.2c7: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.db3(%N.c80, %M) [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.a5a: %Int.as.OrderedWith.impl.Less.type.2c7 = struct_value () [symbolic]
-// CHECK:STDOUT:   %OrderedWith.type.872: type = facet_type <@OrderedWith, @OrderedWith(%Int.49d0e6.1)> [symbolic]
-// CHECK:STDOUT:   %require_complete.66b6: <witness> = require_complete_type %OrderedWith.type.872 [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type.998: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.c2d(%N.c80, %M) [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.807: %Int.as.OrderedWith.impl.Less.type.998 = struct_value () [symbolic]
+// CHECK:STDOUT:   %OrderedWith.type.e9c: type = facet_type <@OrderedWith, @OrderedWith(%Int.49d0e6.1)> [symbolic]
+// CHECK:STDOUT:   %require_complete.309: <witness> = require_complete_type %OrderedWith.type.e9c [symbolic]
 // CHECK:STDOUT:   %OrderedWith.Less.type.8fe: type = fn_type @OrderedWith.Less, @OrderedWith(%Int.49d0e6.1) [symbolic]
 // CHECK:STDOUT:   %OrderedWith.assoc_type.d92: type = assoc_entity_type @OrderedWith, @OrderedWith(%Int.49d0e6.1) [symbolic]
 // CHECK:STDOUT:   %assoc0.8dc: %OrderedWith.assoc_type.d92 = assoc_entity element0, imports.%Core.import_ref.13d [symbolic]
 // CHECK:STDOUT:   %require_complete.0f5: <witness> = require_complete_type %ptr.784 [symbolic]
 // CHECK:STDOUT:   %Inc.type: type = facet_type <@Inc> [concrete]
-// CHECK:STDOUT:   %assoc0.724: %Iterate.assoc_type = assoc_entity element0, imports.%Core.import_ref.4f9 [concrete]
-// CHECK:STDOUT:   %Iterate_where.type.fce: type = facet_type <@Iterate where %impl.elem1.164 = %Int.49d0e6.1 and %impl.elem0.19f = %Int.49d0e6.1> [symbolic]
-// CHECK:STDOUT:   %require_complete.d96: <witness> = require_complete_type %Iterate_where.type.fce [symbolic]
-// CHECK:STDOUT:   %Iterate.impl_witness.48e: <witness> = impl_witness @IntRange.%Iterate.impl_witness_table, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %assoc0.724: %Iterate.assoc_type = assoc_entity element0, imports.%Core.import_ref.4f98b [concrete]
+// CHECK:STDOUT:   %Iterate_where.type.8b1: type = facet_type <@Iterate where %impl.elem1.b8a = %Int.49d0e6.1 and %impl.elem0.70d = %Int.49d0e6.1> [symbolic]
+// CHECK:STDOUT:   %require_complete.f08: <witness> = require_complete_type %Iterate_where.type.8b1 [symbolic]
+// CHECK:STDOUT:   %Iterate.impl_witness.1f6: <witness> = impl_witness @IntRange.%Iterate.impl_witness_table, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor.type: type = fn_type @IntRange.as.Iterate.impl.NewCursor, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor: %IntRange.as.Iterate.impl.NewCursor.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.708: type = class_type @Optional, @Optional(%Int.49d0e6.1) [symbolic]
@@ -136,7 +136,7 @@ fn Read() {
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.Next: %IntRange.as.Iterate.impl.Next.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %IntRange.elem.e7c: type = unbound_element_type %IntRange.349, %Int.49d0e6.1 [symbolic]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.0ef: <witness> = impl_witness @IntRange.%Destroy.impl_witness_table, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.606: <witness> = impl_witness @IntRange.%Destroy.impl_witness_table, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %ptr.710: type = ptr_type %IntRange.349 [symbolic]
 // CHECK:STDOUT:   %pattern_type.99f: type = pattern_type %ptr.710 [symbolic]
 // CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
@@ -149,22 +149,22 @@ fn Read() {
 // CHECK:STDOUT:   %Optional.Some.type.185: type = fn_type @Optional.Some, @Optional(%Int.49d0e6.1) [symbolic]
 // CHECK:STDOUT:   %Optional.Some.58a: %Optional.Some.type.185 = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.b74: <witness> = require_complete_type %Optional.708 [symbolic]
-// CHECK:STDOUT:   %assoc0.5db: %OrderedWith.assoc_type.03c = assoc_entity element0, imports.%Core.import_ref.d49 [symbolic]
-// CHECK:STDOUT:   %OrderedWith.impl_witness.bea: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.476, @Int.as.OrderedWith.impl.db3(%N.c80, %N.c80) [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type.98c: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.db3(%N.c80, %N.c80) [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.4be: %Int.as.OrderedWith.impl.Less.type.98c = struct_value () [symbolic]
-// CHECK:STDOUT:   %OrderedWith.facet: %OrderedWith.type.872 = facet_value %Int.49d0e6.1, (%OrderedWith.impl_witness.bea) [symbolic]
-// CHECK:STDOUT:   %.64e: type = fn_type_with_self_type %OrderedWith.Less.type.8fe, %OrderedWith.facet [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn.bb3: <specific function> = specific_function %Int.as.OrderedWith.impl.Less.4be, @Int.as.OrderedWith.impl.Less.1(%N.c80, %N.c80) [symbolic]
+// CHECK:STDOUT:   %assoc0.5db4: %OrderedWith.assoc_type.03c = assoc_entity element0, imports.%Core.import_ref.d49 [symbolic]
+// CHECK:STDOUT:   %OrderedWith.impl_witness.d80: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.df9, @Int.as.OrderedWith.impl.c2d(%N.c80, %N.c80) [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type.b26: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.c2d(%N.c80, %N.c80) [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.ecc: %Int.as.OrderedWith.impl.Less.type.b26 = struct_value () [symbolic]
+// CHECK:STDOUT:   %OrderedWith.facet: %OrderedWith.type.e9c = facet_value %Int.49d0e6.1, (%OrderedWith.impl_witness.d80) [symbolic]
+// CHECK:STDOUT:   %.d6e: type = fn_type_with_self_type %OrderedWith.Less.type.8fe, %OrderedWith.facet [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn.fd6: <specific function> = specific_function %Int.as.OrderedWith.impl.Less.ecc, @Int.as.OrderedWith.impl.Less.1(%N.c80, %N.c80) [symbolic]
 // CHECK:STDOUT:   %Inc.Op.type: type = fn_type @Inc.Op [concrete]
 // CHECK:STDOUT:   %Inc.lookup_impl_witness: <witness> = lookup_impl_witness %Int.49d0e6.1, @Inc [symbolic]
 // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %Int.49d0e6.1, (%Inc.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.a0d: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0.437: %.a0d = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.a5f: <specific function> = specific_impl_function %impl.elem0.437, @Inc.Op(%Inc.facet) [symbolic]
+// CHECK:STDOUT:   %.c05: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0.1ab: %.c05 = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.8a8: <specific function> = specific_impl_function %impl.elem0.1ab, @Inc.Op(%Inc.facet) [symbolic]
 // CHECK:STDOUT:   %Optional.Some.specific_fn.6f1: <specific function> = specific_function %Optional.Some.58a, @Optional.Some(%Int.49d0e6.1) [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.d3b: %Destroy.type = facet_value %Int.49d0e6.1, (%Destroy.impl_witness.3a2) [symbolic]
-// CHECK:STDOUT:   %.ffb: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.d3b [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.4f8: %Destroy.type = facet_value %Int.49d0e6.1, (%Destroy.impl_witness.bcd) [symbolic]
+// CHECK:STDOUT:   %.d26: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.4f8 [symbolic]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op, @Int.as.Destroy.impl.Op(%N.c80) [symbolic]
 // CHECK:STDOUT:   %Optional.None.specific_fn.82b: <specific function> = specific_function %Optional.None.83e, @Optional.None(%Int.49d0e6.1) [symbolic]
 // CHECK:STDOUT:   %IntRange.365: type = class_type @IntRange, @IntRange(%int_32) [concrete]
@@ -178,10 +178,10 @@ fn Read() {
 // CHECK:STDOUT:   %complete_type.c45: <witness> = complete_type_witness %struct_type.start.end.d0a [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %IntRange.Make.specific_fn: <specific function> = specific_function %IntRange.Make.0dc, @IntRange.Make(%int_32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.fd2: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.1fb) [concrete]
-// CHECK:STDOUT:   %.509: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.fd2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.8af: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.63f) [concrete]
+// CHECK:STDOUT:   %.5e9: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.8af [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -206,19 +206,19 @@ fn Read() {
 // CHECK:STDOUT:   %Core.import_ref.9e6: type = import_ref Core//prelude/iterate, loc13_17, loaded [concrete = %CursorType]
 // CHECK:STDOUT:   %Core.import_ref.f49: @Optional.%Optional.None.type (%Optional.None.type.ef2) = import_ref Core//prelude/iterate, inst137 [indirect], loaded [symbolic = @Optional.%Optional.None (constants.%Optional.None.fd6)]
 // CHECK:STDOUT:   %Core.import_ref.1a8: @Optional.%Optional.Some.type (%Optional.Some.type.b2c) = import_ref Core//prelude/iterate, inst138 [indirect], loaded [symbolic = @Optional.%Optional.Some (constants.%Optional.Some.d0d)]
-// CHECK:STDOUT:   %Core.import_ref.cf4: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/iterate, inst482 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.2b9 = impl_witness_table (%Core.import_ref.cf4), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.741: @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type) = import_ref Core//prelude/iterate, inst450 [indirect], loaded [symbolic = @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.1b4 = impl_witness_table (%Core.import_ref.741), @Int.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.19a: @OrderedWith.%OrderedWith.assoc_type (%OrderedWith.assoc_type.03c) = import_ref Core//prelude/iterate, inst865 [indirect], loaded [symbolic = @OrderedWith.%assoc0 (constants.%assoc0.5db)]
-// CHECK:STDOUT:   %Core.import_ref.b2b: @Int.as.OrderedWith.impl.db3.%Int.as.OrderedWith.impl.Less.type (%Int.as.OrderedWith.impl.Less.type.2c7) = import_ref Core//prelude/iterate, inst954 [indirect], loaded [symbolic = @Int.as.OrderedWith.impl.db3.%Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.a5a)]
-// CHECK:STDOUT:   %Core.import_ref.ab6 = import_ref Core//prelude/iterate, inst955 [indirect], unloaded
-// CHECK:STDOUT:   %Core.import_ref.875 = import_ref Core//prelude/iterate, inst956 [indirect], unloaded
-// CHECK:STDOUT:   %Core.import_ref.82b = import_ref Core//prelude/iterate, inst957 [indirect], unloaded
-// CHECK:STDOUT:   %OrderedWith.impl_witness_table.476 = impl_witness_table (%Core.import_ref.b2b, %Core.import_ref.ab6, %Core.import_ref.875, %Core.import_ref.82b), @Int.as.OrderedWith.impl.db3 [concrete]
+// CHECK:STDOUT:   %Core.import_ref.e38: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/iterate, inst482 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b48 = impl_witness_table (%Core.import_ref.e38), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.490: @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type) = import_ref Core//prelude/iterate, inst450 [indirect], loaded [symbolic = @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.2dc = impl_witness_table (%Core.import_ref.490), @Int.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.19a: @OrderedWith.%OrderedWith.assoc_type (%OrderedWith.assoc_type.03c) = import_ref Core//prelude/iterate, inst865 [indirect], loaded [symbolic = @OrderedWith.%assoc0 (constants.%assoc0.5db4)]
+// CHECK:STDOUT:   %Core.import_ref.774: @Int.as.OrderedWith.impl.c2d.%Int.as.OrderedWith.impl.Less.type (%Int.as.OrderedWith.impl.Less.type.998) = import_ref Core//prelude/iterate, inst954 [indirect], loaded [symbolic = @Int.as.OrderedWith.impl.c2d.%Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.807)]
+// CHECK:STDOUT:   %Core.import_ref.398 = import_ref Core//prelude/iterate, inst955 [indirect], unloaded
+// CHECK:STDOUT:   %Core.import_ref.a89 = import_ref Core//prelude/iterate, inst956 [indirect], unloaded
+// CHECK:STDOUT:   %Core.import_ref.7de = import_ref Core//prelude/iterate, inst957 [indirect], unloaded
+// CHECK:STDOUT:   %OrderedWith.impl_witness_table.df9 = impl_witness_table (%Core.import_ref.774, %Core.import_ref.398, %Core.import_ref.a89, %Core.import_ref.7de), @Int.as.OrderedWith.impl.c2d [concrete]
 // CHECK:STDOUT:   %Core.import_ref.13d: @OrderedWith.%OrderedWith.Less.type (%OrderedWith.Less.type.f19) = import_ref Core//prelude/iterate, inst1929 [indirect], loaded [symbolic = @OrderedWith.%OrderedWith.Less (constants.%OrderedWith.Less.02e)]
 // CHECK:STDOUT:   %CursorType: type = assoc_const_decl @CursorType [concrete] {}
-// CHECK:STDOUT:   %Core.import_ref.4f9: type = import_ref Core//prelude/iterate, loc12_18, loaded [concrete = %ElementType]
+// CHECK:STDOUT:   %Core.import_ref.4f98b: type = import_ref Core//prelude/iterate, loc12_18, loaded [concrete = %ElementType]
 // CHECK:STDOUT:   %ElementType: type = assoc_const_decl @ElementType [concrete] {}
 // CHECK:STDOUT:   %Core.Optional: %Optional.type = import_ref Core//prelude/types/optional, Optional, loaded [concrete = constants.%Optional.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
@@ -272,9 +272,9 @@ fn Read() {
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.c80)]
 // CHECK:STDOUT:   %IntRange: type = class_type @IntRange, @IntRange(%N) [symbolic = %IntRange (constants.%IntRange.349)]
 // CHECK:STDOUT:   %Int.loc9_54.1: type = class_type @Int, @Int(%N) [symbolic = %Int.loc9_54.1 (constants.%Int.49d0e6.1)]
-// CHECK:STDOUT:   %Iterate_where.type: type = facet_type <@Iterate where constants.%impl.elem1.164 = %Int.loc9_54.1 and constants.%impl.elem0.19f = %Int.loc9_54.1> [symbolic = %Iterate_where.type (constants.%Iterate_where.type.fce)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Iterate_where.type [symbolic = %require_complete (constants.%require_complete.d96)]
-// CHECK:STDOUT:   %Iterate.impl_witness: <witness> = impl_witness @IntRange.%Iterate.impl_witness_table, @IntRange.as.Iterate.impl(%N) [symbolic = %Iterate.impl_witness (constants.%Iterate.impl_witness.48e)]
+// CHECK:STDOUT:   %Iterate_where.type: type = facet_type <@Iterate where constants.%impl.elem1.b8a = %Int.loc9_54.1 and constants.%impl.elem0.70d = %Int.loc9_54.1> [symbolic = %Iterate_where.type (constants.%Iterate_where.type.8b1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Iterate_where.type [symbolic = %require_complete (constants.%require_complete.f08)]
+// CHECK:STDOUT:   %Iterate.impl_witness: <witness> = impl_witness @IntRange.%Iterate.impl_witness_table, @IntRange.as.Iterate.impl(%N) [symbolic = %Iterate.impl_witness (constants.%Iterate.impl_witness.1f6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor.type: type = fn_type @IntRange.as.Iterate.impl.NewCursor, @IntRange.as.Iterate.impl(%N) [symbolic = %IntRange.as.Iterate.impl.NewCursor.type (constants.%IntRange.as.Iterate.impl.NewCursor.type)]
@@ -347,7 +347,7 @@ fn Read() {
 // CHECK:STDOUT: generic impl @IntRange.as.Destroy.impl(@IntRange.%N.loc4_16.2: Core.IntLiteral) {
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.c80)]
 // CHECK:STDOUT:   %IntRange: type = class_type @IntRange, @IntRange(%N) [symbolic = %IntRange (constants.%IntRange.349)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @IntRange.%Destroy.impl_witness_table, @IntRange.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.0ef)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @IntRange.%Destroy.impl_witness_table, @IntRange.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.606)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%N) [symbolic = %IntRange.as.Destroy.impl.Op.type (constants.%IntRange.as.Destroy.impl.Op.type)]
@@ -420,33 +420,33 @@ fn Read() {
 // CHECK:STDOUT:       %Self.ref: type = name_ref Self, constants.%IntRange.349 [symbolic = %IntRange (constants.%IntRange.349)]
 // CHECK:STDOUT:       %Core.ref.loc9_11: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:       %Iterate.ref: type = name_ref Iterate, imports.%Core.Iterate [concrete = constants.%Iterate.type]
-// CHECK:STDOUT:       %.Self: %Iterate.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.ef1]
-// CHECK:STDOUT:       %.Self.ref.loc9_30: %Iterate.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.ef1]
+// CHECK:STDOUT:       %.Self: %Iterate.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.d62]
+// CHECK:STDOUT:       %.Self.ref.loc9_30: %Iterate.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.d62]
 // CHECK:STDOUT:       %CursorType.ref: %Iterate.assoc_type = name_ref CursorType, imports.%Core.import_ref.ed6 [concrete = constants.%assoc1.02e]
-// CHECK:STDOUT:       %.Self.as_type.loc9_30: type = facet_access_type %.Self.ref.loc9_30 [symbolic_self = constants.%.Self.as_type.935]
-// CHECK:STDOUT:       %.loc9_30: type = converted %.Self.ref.loc9_30, %.Self.as_type.loc9_30 [symbolic_self = constants.%.Self.as_type.935]
-// CHECK:STDOUT:       %impl.elem1: type = impl_witness_access constants.%Iterate.lookup_impl_witness.65a, element1 [symbolic_self = constants.%impl.elem1.164]
+// CHECK:STDOUT:       %.Self.as_type.loc9_30: type = facet_access_type %.Self.ref.loc9_30 [symbolic_self = constants.%.Self.as_type.8ce]
+// CHECK:STDOUT:       %.loc9_30: type = converted %.Self.ref.loc9_30, %.Self.as_type.loc9_30 [symbolic_self = constants.%.Self.as_type.8ce]
+// CHECK:STDOUT:       %impl.elem1: type = impl_witness_access constants.%Iterate.lookup_impl_witness.6c6, element1 [symbolic_self = constants.%impl.elem1.b8a]
 // CHECK:STDOUT:       %Core.ref.loc9_44: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:       %Int.ref.loc9_48: %Int.type = name_ref Int, imports.%Core.Int [concrete = constants.%Int.generic]
 // CHECK:STDOUT:       %N.ref.loc9_53: Core.IntLiteral = name_ref N, @IntRange.%N.loc4_16.2 [symbolic = %N (constants.%N.c80)]
 // CHECK:STDOUT:       %Int.loc9_54.2: type = class_type @Int, @Int(constants.%N.c80) [symbolic = %Int.loc9_54.1 (constants.%Int.49d0e6.1)]
-// CHECK:STDOUT:       %.Self.ref.loc9_60: %Iterate.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.ef1]
+// CHECK:STDOUT:       %.Self.ref.loc9_60: %Iterate.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.d62]
 // CHECK:STDOUT:       %ElementType.ref: %Iterate.assoc_type = name_ref ElementType, imports.%Core.import_ref.1c9 [concrete = constants.%assoc0.724]
-// CHECK:STDOUT:       %.Self.as_type.loc9_60: type = facet_access_type %.Self.ref.loc9_60 [symbolic_self = constants.%.Self.as_type.935]
-// CHECK:STDOUT:       %.loc9_60: type = converted %.Self.ref.loc9_60, %.Self.as_type.loc9_60 [symbolic_self = constants.%.Self.as_type.935]
-// CHECK:STDOUT:       %impl.elem0: type = impl_witness_access constants.%Iterate.lookup_impl_witness.65a, element0 [symbolic_self = constants.%impl.elem0.19f]
+// CHECK:STDOUT:       %.Self.as_type.loc9_60: type = facet_access_type %.Self.ref.loc9_60 [symbolic_self = constants.%.Self.as_type.8ce]
+// CHECK:STDOUT:       %.loc9_60: type = converted %.Self.ref.loc9_60, %.Self.as_type.loc9_60 [symbolic_self = constants.%.Self.as_type.8ce]
+// CHECK:STDOUT:       %impl.elem0: type = impl_witness_access constants.%Iterate.lookup_impl_witness.6c6, element0 [symbolic_self = constants.%impl.elem0.70d]
 // CHECK:STDOUT:       %Core.ref.loc9_75: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:       %Int.ref.loc9_79: %Int.type = name_ref Int, imports.%Core.Int [concrete = constants.%Int.generic]
 // CHECK:STDOUT:       %N.ref.loc9_84: Core.IntLiteral = name_ref N, @IntRange.%N.loc4_16.2 [symbolic = %N (constants.%N.c80)]
 // CHECK:STDOUT:       %Int.loc9_85: type = class_type @Int, @Int(constants.%N.c80) [symbolic = %Int.loc9_54.1 (constants.%Int.49d0e6.1)]
-// CHECK:STDOUT:       %.loc9_24: type = where_expr %.Self [symbolic = %Iterate_where.type (constants.%Iterate_where.type.fce)] {
+// CHECK:STDOUT:       %.loc9_24: type = where_expr %.Self [symbolic = %Iterate_where.type (constants.%Iterate_where.type.8b1)] {
 // CHECK:STDOUT:         requirement_base_facet_type constants.%Iterate.type
 // CHECK:STDOUT:         requirement_rewrite %impl.elem1, %Int.loc9_54.2
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0, %Int.loc9_85
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %Iterate.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant.loc9_87.2, %impl_witness_assoc_constant.loc9_87.1, @IntRange.as.Iterate.impl.%IntRange.as.Iterate.impl.NewCursor.decl, @IntRange.as.Iterate.impl.%IntRange.as.Iterate.impl.Next.decl), @IntRange.as.Iterate.impl [concrete]
-// CHECK:STDOUT:     %Iterate.impl_witness: <witness> = impl_witness %Iterate.impl_witness_table, @IntRange.as.Iterate.impl(constants.%N.c80) [symbolic = @IntRange.as.Iterate.impl.%Iterate.impl_witness (constants.%Iterate.impl_witness.48e)]
+// CHECK:STDOUT:     %Iterate.impl_witness: <witness> = impl_witness %Iterate.impl_witness_table, @IntRange.as.Iterate.impl(constants.%N.c80) [symbolic = @IntRange.as.Iterate.impl.%Iterate.impl_witness (constants.%Iterate.impl_witness.1f6)]
 // CHECK:STDOUT:     %impl_witness_assoc_constant.loc9_87.1: type = impl_witness_assoc_constant constants.%Int.49d0e6.1 [symbolic = @IntRange.as.Iterate.impl.%Int.loc9_54.1 (constants.%Int.49d0e6.1)]
 // CHECK:STDOUT:     %impl_witness_assoc_constant.loc9_87.2: type = impl_witness_assoc_constant constants.%Int.49d0e6.1 [symbolic = @IntRange.as.Iterate.impl.%Int.loc9_54.1 (constants.%Int.49d0e6.1)]
 // CHECK:STDOUT:     %Core.ref.loc22: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
@@ -462,7 +462,7 @@ fn Read() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%IntRange.349 [symbolic = @IntRange.as.Destroy.impl.%IntRange (constants.%IntRange.349)]
 // CHECK:STDOUT:     impl_decl @IntRange.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op.decl), @IntRange.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @IntRange.as.Destroy.impl(constants.%N.c80) [symbolic = @IntRange.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.0ef)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @IntRange.as.Destroy.impl(constants.%N.c80) [symbolic = @IntRange.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.606)]
 // CHECK:STDOUT:     %complete_type.loc24_1.1: <witness> = complete_type_witness constants.%struct_type.start.end.78d [symbolic = %complete_type.loc24_1.2 (constants.%complete_type.9d5)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc24_1.1
 // CHECK:STDOUT:
@@ -541,28 +541,28 @@ fn Read() {
 // CHECK:STDOUT:   %require_complete.loc12: <witness> = require_complete_type %Int.loc11_43.1 [symbolic = %require_complete.loc12 (constants.%require_complete.b4f426.3)]
 // CHECK:STDOUT:   %pattern_type.loc12: type = pattern_type %Int.loc11_43.1 [symbolic = %pattern_type.loc12 (constants.%pattern_type.8963eb.1)]
 // CHECK:STDOUT:   %IntRange.elem: type = unbound_element_type %IntRange, %Int.loc11_43.1 [symbolic = %IntRange.elem (constants.%IntRange.elem.e7c)]
-// CHECK:STDOUT:   %OrderedWith.type.loc13_17.2: type = facet_type <@OrderedWith, @OrderedWith(%Int.loc11_43.1)> [symbolic = %OrderedWith.type.loc13_17.2 (constants.%OrderedWith.type.872)]
-// CHECK:STDOUT:   %require_complete.loc13: <witness> = require_complete_type %OrderedWith.type.loc13_17.2 [symbolic = %require_complete.loc13 (constants.%require_complete.66b6)]
+// CHECK:STDOUT:   %OrderedWith.type.loc13_17.2: type = facet_type <@OrderedWith, @OrderedWith(%Int.loc11_43.1)> [symbolic = %OrderedWith.type.loc13_17.2 (constants.%OrderedWith.type.e9c)]
+// CHECK:STDOUT:   %require_complete.loc13: <witness> = require_complete_type %OrderedWith.type.loc13_17.2 [symbolic = %require_complete.loc13 (constants.%require_complete.309)]
 // CHECK:STDOUT:   %OrderedWith.assoc_type: type = assoc_entity_type @OrderedWith, @OrderedWith(%Int.loc11_43.1) [symbolic = %OrderedWith.assoc_type (constants.%OrderedWith.assoc_type.d92)]
 // CHECK:STDOUT:   %assoc0: @IntRange.as.Iterate.impl.Next.%OrderedWith.assoc_type (%OrderedWith.assoc_type.d92) = assoc_entity element0, imports.%Core.import_ref.13d [symbolic = %assoc0 (constants.%assoc0.8dc)]
-// CHECK:STDOUT:   %OrderedWith.impl_witness: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.476, @Int.as.OrderedWith.impl.db3(%N, %N) [symbolic = %OrderedWith.impl_witness (constants.%OrderedWith.impl_witness.bea)]
+// CHECK:STDOUT:   %OrderedWith.impl_witness: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.df9, @Int.as.OrderedWith.impl.c2d(%N, %N) [symbolic = %OrderedWith.impl_witness (constants.%OrderedWith.impl_witness.d80)]
 // CHECK:STDOUT:   %OrderedWith.Less.type: type = fn_type @OrderedWith.Less, @OrderedWith(%Int.loc11_43.1) [symbolic = %OrderedWith.Less.type (constants.%OrderedWith.Less.type.8fe)]
-// CHECK:STDOUT:   %OrderedWith.facet: @IntRange.as.Iterate.impl.Next.%OrderedWith.type.loc13_17.2 (%OrderedWith.type.872) = facet_value %Int.loc11_43.1, (%OrderedWith.impl_witness) [symbolic = %OrderedWith.facet (constants.%OrderedWith.facet)]
-// CHECK:STDOUT:   %.loc13_17.2: type = fn_type_with_self_type %OrderedWith.Less.type, %OrderedWith.facet [symbolic = %.loc13_17.2 (constants.%.64e)]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.db3(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.type (constants.%Int.as.OrderedWith.impl.Less.type.98c)]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less: @IntRange.as.Iterate.impl.Next.%Int.as.OrderedWith.impl.Less.type (%Int.as.OrderedWith.impl.Less.type.98c) = struct_value () [symbolic = %Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.4be)]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn: <specific function> = specific_function %Int.as.OrderedWith.impl.Less, @Int.as.OrderedWith.impl.Less.1(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.specific_fn (constants.%Int.as.OrderedWith.impl.Less.specific_fn.bb3)]
+// CHECK:STDOUT:   %OrderedWith.facet: @IntRange.as.Iterate.impl.Next.%OrderedWith.type.loc13_17.2 (%OrderedWith.type.e9c) = facet_value %Int.loc11_43.1, (%OrderedWith.impl_witness) [symbolic = %OrderedWith.facet (constants.%OrderedWith.facet)]
+// CHECK:STDOUT:   %.loc13_17.2: type = fn_type_with_self_type %OrderedWith.Less.type, %OrderedWith.facet [symbolic = %.loc13_17.2 (constants.%.d6e)]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.c2d(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.type (constants.%Int.as.OrderedWith.impl.Less.type.b26)]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less: @IntRange.as.Iterate.impl.Next.%Int.as.OrderedWith.impl.Less.type (%Int.as.OrderedWith.impl.Less.type.b26) = struct_value () [symbolic = %Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.ecc)]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn: <specific function> = specific_function %Int.as.OrderedWith.impl.Less, @Int.as.OrderedWith.impl.Less.1(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.specific_fn (constants.%Int.as.OrderedWith.impl.Less.specific_fn.fd6)]
 // CHECK:STDOUT:   %Inc.lookup_impl_witness: <witness> = lookup_impl_witness %Int.loc11_43.1, @Inc [symbolic = %Inc.lookup_impl_witness (constants.%Inc.lookup_impl_witness)]
 // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %Int.loc11_43.1, (%Inc.lookup_impl_witness) [symbolic = %Inc.facet (constants.%Inc.facet)]
-// CHECK:STDOUT:   %.loc14_9.2: type = fn_type_with_self_type constants.%Inc.Op.type, %Inc.facet [symbolic = %.loc14_9.2 (constants.%.a0d)]
-// CHECK:STDOUT:   %impl.elem0.loc14_9.2: @IntRange.as.Iterate.impl.Next.%.loc14_9.2 (%.a0d) = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_9.2 (constants.%impl.elem0.437)]
-// CHECK:STDOUT:   %specific_impl_fn.loc14_9.2: <specific function> = specific_impl_function %impl.elem0.loc14_9.2, @Inc.Op(%Inc.facet) [symbolic = %specific_impl_fn.loc14_9.2 (constants.%specific_impl_fn.a5f)]
+// CHECK:STDOUT:   %.loc14_9.2: type = fn_type_with_self_type constants.%Inc.Op.type, %Inc.facet [symbolic = %.loc14_9.2 (constants.%.c05)]
+// CHECK:STDOUT:   %impl.elem0.loc14_9.2: @IntRange.as.Iterate.impl.Next.%.loc14_9.2 (%.c05) = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_9.2 (constants.%impl.elem0.1ab)]
+// CHECK:STDOUT:   %specific_impl_fn.loc14_9.2: <specific function> = specific_impl_function %impl.elem0.loc14_9.2, @Inc.Op(%Inc.facet) [symbolic = %specific_impl_fn.loc14_9.2 (constants.%specific_impl_fn.8a8)]
 // CHECK:STDOUT:   %Optional.Some.type: type = fn_type @Optional.Some, @Optional(%Int.loc11_43.1) [symbolic = %Optional.Some.type (constants.%Optional.Some.type.185)]
 // CHECK:STDOUT:   %Optional.Some: @IntRange.as.Iterate.impl.Next.%Optional.Some.type (%Optional.Some.type.185) = struct_value () [symbolic = %Optional.Some (constants.%Optional.Some.58a)]
 // CHECK:STDOUT:   %Optional.Some.specific_fn.loc15_42.2: <specific function> = specific_function %Optional.Some, @Optional.Some(%Int.loc11_43.1) [symbolic = %Optional.Some.specific_fn.loc15_42.2 (constants.%Optional.Some.specific_fn.6f1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.1b4, @Int.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.3a2)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int.loc11_43.1, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.d3b)]
-// CHECK:STDOUT:   %.loc12_7: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc12_7 (constants.%.ffb)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.2dc, @Int.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.bcd)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int.loc11_43.1, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.4f8)]
+// CHECK:STDOUT:   %.loc12_7: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc12_7 (constants.%.d26)]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N) [symbolic = %Int.as.Destroy.impl.Op.type (constants.%Int.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op: @IntRange.as.Iterate.impl.Next.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op, @Int.as.Destroy.impl.Op(%N) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn)]
@@ -593,12 +593,12 @@ fn Read() {
 // CHECK:STDOUT:     %end.ref: @IntRange.as.Iterate.impl.Next.%IntRange.elem (%IntRange.elem.e7c) = name_ref end, @IntRange.%.loc23 [concrete = @IntRange.%.loc23]
 // CHECK:STDOUT:     %.loc13_23.1: ref @IntRange.as.Iterate.impl.Next.%Int.loc11_43.1 (%Int.49d0e6.1) = class_element_access %self.ref, element1
 // CHECK:STDOUT:     %.loc13_23.2: @IntRange.as.Iterate.impl.Next.%Int.loc11_43.1 (%Int.49d0e6.1) = bind_value %.loc13_23.1
-// CHECK:STDOUT:     %OrderedWith.type.loc13_17.1: type = facet_type <@OrderedWith, @OrderedWith(constants.%Int.49d0e6.1)> [symbolic = %OrderedWith.type.loc13_17.2 (constants.%OrderedWith.type.872)]
+// CHECK:STDOUT:     %OrderedWith.type.loc13_17.1: type = facet_type <@OrderedWith, @OrderedWith(constants.%Int.49d0e6.1)> [symbolic = %OrderedWith.type.loc13_17.2 (constants.%OrderedWith.type.e9c)]
 // CHECK:STDOUT:     %.loc13_17.1: @IntRange.as.Iterate.impl.Next.%OrderedWith.assoc_type (%OrderedWith.assoc_type.d92) = specific_constant imports.%Core.import_ref.19a, @OrderedWith(constants.%Int.49d0e6.1) [symbolic = %assoc0 (constants.%assoc0.8dc)]
 // CHECK:STDOUT:     %Less.ref: @IntRange.as.Iterate.impl.Next.%OrderedWith.assoc_type (%OrderedWith.assoc_type.d92) = name_ref Less, %.loc13_17.1 [symbolic = %assoc0 (constants.%assoc0.8dc)]
-// CHECK:STDOUT:     %impl.elem0.loc13: @IntRange.as.Iterate.impl.Next.%.loc13_17.2 (%.64e) = impl_witness_access constants.%OrderedWith.impl_witness.bea, element0 [symbolic = %Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.4be)]
+// CHECK:STDOUT:     %impl.elem0.loc13: @IntRange.as.Iterate.impl.Next.%.loc13_17.2 (%.d6e) = impl_witness_access constants.%OrderedWith.impl_witness.d80, element0 [symbolic = %Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.ecc)]
 // CHECK:STDOUT:     %bound_method.loc13_17.1: <bound method> = bound_method %value.ref.loc13, %impl.elem0.loc13
-// CHECK:STDOUT:     %specific_fn.loc13: <specific function> = specific_function %impl.elem0.loc13, @Int.as.OrderedWith.impl.Less.1(constants.%N.c80, constants.%N.c80) [symbolic = %Int.as.OrderedWith.impl.Less.specific_fn (constants.%Int.as.OrderedWith.impl.Less.specific_fn.bb3)]
+// CHECK:STDOUT:     %specific_fn.loc13: <specific function> = specific_function %impl.elem0.loc13, @Int.as.OrderedWith.impl.Less.1(constants.%N.c80, constants.%N.c80) [symbolic = %Int.as.OrderedWith.impl.Less.specific_fn (constants.%Int.as.OrderedWith.impl.Less.specific_fn.fd6)]
 // CHECK:STDOUT:     %bound_method.loc13_17.2: <bound method> = bound_method %value.ref.loc13, %specific_fn.loc13
 // CHECK:STDOUT:     %.loc13_11: @IntRange.as.Iterate.impl.Next.%Int.loc11_43.1 (%Int.49d0e6.1) = bind_value %value.ref.loc13
 // CHECK:STDOUT:     %Int.as.OrderedWith.impl.Less.call: init bool = call %bound_method.loc13_17.2(%.loc13_11, %.loc13_23.2)
@@ -609,9 +609,9 @@ fn Read() {
 // CHECK:STDOUT:   !if.then:
 // CHECK:STDOUT:     %cursor.ref.loc14: @IntRange.as.Iterate.impl.Next.%ptr.loc11_44.1 (%ptr.784) = name_ref cursor, %cursor
 // CHECK:STDOUT:     %.loc14_11: ref @IntRange.as.Iterate.impl.Next.%Int.loc11_43.1 (%Int.49d0e6.1) = deref %cursor.ref.loc14
-// CHECK:STDOUT:     %impl.elem0.loc14_9.1: @IntRange.as.Iterate.impl.Next.%.loc14_9.2 (%.a0d) = impl_witness_access constants.%Inc.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_9.2 (constants.%impl.elem0.437)]
+// CHECK:STDOUT:     %impl.elem0.loc14_9.1: @IntRange.as.Iterate.impl.Next.%.loc14_9.2 (%.c05) = impl_witness_access constants.%Inc.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_9.2 (constants.%impl.elem0.1ab)]
 // CHECK:STDOUT:     %bound_method.loc14_9.1: <bound method> = bound_method %.loc14_11, %impl.elem0.loc14_9.1
-// CHECK:STDOUT:     %specific_impl_fn.loc14_9.1: <specific function> = specific_impl_function %impl.elem0.loc14_9.1, @Inc.Op(constants.%Inc.facet) [symbolic = %specific_impl_fn.loc14_9.2 (constants.%specific_impl_fn.a5f)]
+// CHECK:STDOUT:     %specific_impl_fn.loc14_9.1: <specific function> = specific_impl_function %impl.elem0.loc14_9.1, @Inc.Op(constants.%Inc.facet) [symbolic = %specific_impl_fn.loc14_9.2 (constants.%specific_impl_fn.8a8)]
 // CHECK:STDOUT:     %bound_method.loc14_9.2: <bound method> = bound_method %.loc14_11, %specific_impl_fn.loc14_9.1
 // CHECK:STDOUT:     %addr.loc14: @IntRange.as.Iterate.impl.Next.%ptr.loc11_44.1 (%ptr.784) = addr_of %.loc14_11
 // CHECK:STDOUT:     %.loc14_9.1: init %empty_tuple.type = call %bound_method.loc14_9.2(%addr.loc14)
@@ -629,7 +629,7 @@ fn Read() {
 // CHECK:STDOUT:     %.loc11_47.1: ref @IntRange.as.Iterate.impl.Next.%Optional.loc11_75.1 (%Optional.708) = splice_block %return {}
 // CHECK:STDOUT:     %.loc15_48: @IntRange.as.Iterate.impl.Next.%Int.loc11_43.1 (%Int.49d0e6.1) = bind_value %value.ref.loc15
 // CHECK:STDOUT:     %Optional.Some.call: init @IntRange.as.Iterate.impl.Next.%Optional.loc11_75.1 (%Optional.708) = call %Optional.Some.specific_fn.loc15_42.1(%.loc15_48) to %.loc11_47.1
-// CHECK:STDOUT:     %impl.elem0.loc12_7.1: @IntRange.as.Iterate.impl.Next.%.loc12_7 (%.ffb) = impl_witness_access constants.%Destroy.impl_witness.3a2, element0 [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
+// CHECK:STDOUT:     %impl.elem0.loc12_7.1: @IntRange.as.Iterate.impl.Next.%.loc12_7 (%.d26) = impl_witness_access constants.%Destroy.impl_witness.bcd, element0 [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
 // CHECK:STDOUT:     %bound_method.loc12_7.1: <bound method> = bound_method %value.var, %impl.elem0.loc12_7.1
 // CHECK:STDOUT:     %specific_fn.loc12_7.1: <specific function> = specific_function %impl.elem0.loc12_7.1, @Int.as.Destroy.impl.Op(constants.%N.c80) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn)]
 // CHECK:STDOUT:     %bound_method.loc12_7.2: <bound method> = bound_method %value.var, %specific_fn.loc12_7.1
@@ -650,7 +650,7 @@ fn Read() {
 // CHECK:STDOUT:     %Optional.None.specific_fn.loc17_42.1: <specific function> = specific_function %None.ref, @Optional.None(constants.%Int.49d0e6.1) [symbolic = %Optional.None.specific_fn.loc17_42.2 (constants.%Optional.None.specific_fn.82b)]
 // CHECK:STDOUT:     %.loc11_47.2: ref @IntRange.as.Iterate.impl.Next.%Optional.loc11_75.1 (%Optional.708) = splice_block %return {}
 // CHECK:STDOUT:     %Optional.None.call: init @IntRange.as.Iterate.impl.Next.%Optional.loc11_75.1 (%Optional.708) = call %Optional.None.specific_fn.loc17_42.1() to %.loc11_47.2
-// CHECK:STDOUT:     %impl.elem0.loc12_7.2: @IntRange.as.Iterate.impl.Next.%.loc12_7 (%.ffb) = impl_witness_access constants.%Destroy.impl_witness.3a2, element0 [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
+// CHECK:STDOUT:     %impl.elem0.loc12_7.2: @IntRange.as.Iterate.impl.Next.%.loc12_7 (%.d26) = impl_witness_access constants.%Destroy.impl_witness.bcd, element0 [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
 // CHECK:STDOUT:     %bound_method.loc12_7.3: <bound method> = bound_method %value.var, %impl.elem0.loc12_7.2
 // CHECK:STDOUT:     %specific_fn.loc12_7.2: <specific function> = specific_function %impl.elem0.loc12_7.2, @Int.as.Destroy.impl.Op(constants.%N.c80) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn)]
 // CHECK:STDOUT:     %bound_method.loc12_7.4: <bound method> = bound_method %value.var, %specific_fn.loc12_7.2
@@ -682,10 +682,10 @@ fn Read() {
 // CHECK:STDOUT:   %end.ref: %i32 = name_ref end, %end
 // CHECK:STDOUT:   %IntRange.Make.specific_fn: <specific function> = specific_function %Make.ref, @IntRange.Make(constants.%int_32) [concrete = constants.%IntRange.Make.specific_fn]
 // CHECK:STDOUT:   %.loc26_20: ref %IntRange.365 = splice_block %return {}
-// CHECK:STDOUT:   %impl.elem0: %.509 = impl_witness_access constants.%ImplicitAs.impl_witness.1fb, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc27_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.5e9 = impl_witness_access constants.%ImplicitAs.impl_witness.63f, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc27_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc27_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc27_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc27_28.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc27_28.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc27_28.2: %i32 = converted %int_0, %.loc27_28.1 [concrete = constants.%int_0.6a9]
@@ -719,9 +719,9 @@ fn Read() {
 // CHECK:STDOUT:   %N => constants.%N.c80
 // CHECK:STDOUT:   %IntRange => constants.%IntRange.349
 // CHECK:STDOUT:   %Int.loc9_54.1 => constants.%Int.49d0e6.1
-// CHECK:STDOUT:   %Iterate_where.type => constants.%Iterate_where.type.fce
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d96
-// CHECK:STDOUT:   %Iterate.impl_witness => constants.%Iterate.impl_witness.48e
+// CHECK:STDOUT:   %Iterate_where.type => constants.%Iterate_where.type.8b1
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.f08
+// CHECK:STDOUT:   %Iterate.impl_witness => constants.%Iterate.impl_witness.1f6
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor.type => constants.%IntRange.as.Iterate.impl.NewCursor.type
@@ -752,7 +752,7 @@ fn Read() {
 // CHECK:STDOUT: specific @IntRange.as.Destroy.impl(constants.%N.c80) {
 // CHECK:STDOUT:   %N => constants.%N.c80
 // CHECK:STDOUT:   %IntRange => constants.%IntRange.349
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.0ef
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.606
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @IntRange.as.Destroy.impl.Op(constants.%N.c80) {
@@ -830,41 +830,41 @@ fn Read() {
 // CHECK:STDOUT:   %Range: %Range.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9ba: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.cf3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.6da: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.382: <witness> = impl_witness imports.%Destroy.impl_witness_table.14b, @Int.as.Destroy.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.66a: <witness> = impl_witness imports.%Destroy.impl_witness_table.a97, @Int.as.Destroy.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op: %Int.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.58a: type = ptr_type %Int.7ff11f.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.6d0: type = pattern_type %ptr.58a [symbolic]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %OrderedWith.type.256: type = facet_type <@OrderedWith, @OrderedWith(%Int.7ff11f.1)> [symbolic]
-// CHECK:STDOUT:   %require_complete.10b: <witness> = require_complete_type %OrderedWith.type.256 [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %OrderedWith.type.ebc: type = facet_type <@OrderedWith, @OrderedWith(%Int.7ff11f.1)> [symbolic]
+// CHECK:STDOUT:   %require_complete.a77: <witness> = require_complete_type %OrderedWith.type.ebc [symbolic]
 // CHECK:STDOUT:   %OrderedWith.Less.type.016: type = fn_type @OrderedWith.Less, @OrderedWith(%Int.7ff11f.1) [symbolic]
 // CHECK:STDOUT:   %OrderedWith.assoc_type.e53: type = assoc_entity_type @OrderedWith, @OrderedWith(%Int.7ff11f.1) [symbolic]
 // CHECK:STDOUT:   %require_complete.656: <witness> = require_complete_type %ptr.58a [symbolic]
 // CHECK:STDOUT:   %Inc.type: type = facet_type <@Inc> [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e34: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e36, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.2e7: %ImplicitAs.type.9ba = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e34) [concrete]
-// CHECK:STDOUT:   %.d6a: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet.2e7 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.971: <bound method> = bound_method %y, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.d68: <bound method> = bound_method %y, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.58b: init %i32 = call %bound_method.d68(%y) [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ed2: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ba4, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.af9: %ImplicitAs.type.cf3 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed2) [concrete]
+// CHECK:STDOUT:   %.2c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet.af9 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.3c2: <bound method> = bound_method %y, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.96b: <bound method> = bound_method %y, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.029: init %i32 = call %bound_method.96b(%y) [symbolic]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %Iterate.type: type = facet_type <@Iterate> [concrete]
-// CHECK:STDOUT:   %.Self.36d: %Iterate.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Iterate.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.36d, @Iterate [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.a12: type = impl_witness_access %Iterate.lookup_impl_witness, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.a45: %Iterate.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Iterate.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.a45, @Iterate [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.9e6: type = impl_witness_access %Iterate.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %impl.elem1: type = impl_witness_access %Iterate.lookup_impl_witness, element1 [symbolic_self]
-// CHECK:STDOUT:   %Iterate_where.type.2cb: type = facet_type <@Iterate where %impl.elem0.a12 = %Int.7ff11f.1 and %impl.elem1 = %Int.7ff11f.1> [symbolic]
-// CHECK:STDOUT:   %require_complete.6f5: <witness> = require_complete_type %Iterate_where.type.2cb [symbolic]
-// CHECK:STDOUT:   %Iterate.impl_witness.d2b: <witness> = impl_witness imports.%Iterate.impl_witness_table.b32, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %Iterate_where.type.156: type = facet_type <@Iterate where %impl.elem0.9e6 = %Int.7ff11f.1 and %impl.elem1 = %Int.7ff11f.1> [symbolic]
+// CHECK:STDOUT:   %require_complete.bdc: <witness> = require_complete_type %Iterate_where.type.156 [symbolic]
+// CHECK:STDOUT:   %Iterate.impl_witness.312: <witness> = impl_witness imports.%Iterate.impl_witness_table.f60, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor.type: type = fn_type @IntRange.as.Iterate.impl.NewCursor, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor: %IntRange.as.Iterate.impl.NewCursor.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.Next.type: type = fn_type @IntRange.as.Iterate.impl.Next, @IntRange.as.Iterate.impl(%N.c80) [symbolic]
@@ -873,38 +873,38 @@ fn Read() {
 // CHECK:STDOUT:   %pattern_type.fd8: type = pattern_type %Optional.e9f [symbolic]
 // CHECK:STDOUT:   %require_complete.5a1: <witness> = require_complete_type %Optional.e9f [symbolic]
 // CHECK:STDOUT:   %assoc0.4a4: %OrderedWith.assoc_type.e53 = assoc_entity element0, imports.%Main.import_ref.026 [symbolic]
-// CHECK:STDOUT:   %OrderedWith.impl_witness.350: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.0e1, @Int.as.OrderedWith.impl.5b6(%N.c80, %N.c80) [symbolic]
-// CHECK:STDOUT:   %OrderedWith.facet: %OrderedWith.type.256 = facet_value %Int.7ff11f.1, (%OrderedWith.impl_witness.350) [symbolic]
-// CHECK:STDOUT:   %.3bd: type = fn_type_with_self_type %OrderedWith.Less.type.016, %OrderedWith.facet [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type.4f5: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.5b6(%N.c80, %N.c80) [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.3b5: %Int.as.OrderedWith.impl.Less.type.4f5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn.5e2: <specific function> = specific_function %Int.as.OrderedWith.impl.Less.3b5, @Int.as.OrderedWith.impl.Less.1(%N.c80, %N.c80) [symbolic]
+// CHECK:STDOUT:   %OrderedWith.impl_witness.e37: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.d62, @Int.as.OrderedWith.impl.460(%N.c80, %N.c80) [symbolic]
+// CHECK:STDOUT:   %OrderedWith.facet: %OrderedWith.type.ebc = facet_value %Int.7ff11f.1, (%OrderedWith.impl_witness.e37) [symbolic]
+// CHECK:STDOUT:   %.ae5: type = fn_type_with_self_type %OrderedWith.Less.type.016, %OrderedWith.facet [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type.ac6: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.460(%N.c80, %N.c80) [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.4d5: %Int.as.OrderedWith.impl.Less.type.ac6 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn.05f: <specific function> = specific_function %Int.as.OrderedWith.impl.Less.4d5, @Int.as.OrderedWith.impl.Less.1(%N.c80, %N.c80) [symbolic]
 // CHECK:STDOUT:   %Inc.lookup_impl_witness: <witness> = lookup_impl_witness %Int.7ff11f.1, @Inc [symbolic]
 // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %Int.7ff11f.1, (%Inc.lookup_impl_witness) [symbolic]
 // CHECK:STDOUT:   %Inc.Op.type: type = fn_type @Inc.Op [concrete]
-// CHECK:STDOUT:   %.15d: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0.181: %.15d = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.be7: <specific function> = specific_impl_function %impl.elem0.181, @Inc.Op(%Inc.facet) [symbolic]
+// CHECK:STDOUT:   %.b15: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0.d38: %.b15 = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.715: <specific function> = specific_impl_function %impl.elem0.d38, @Inc.Op(%Inc.facet) [symbolic]
 // CHECK:STDOUT:   %Optional.Some.type.fe1: type = fn_type @Optional.Some, @Optional(%Int.7ff11f.1) [symbolic]
 // CHECK:STDOUT:   %Optional.Some.aae: %Optional.Some.type.fe1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.Some.specific_fn.b8a: <specific function> = specific_function %Optional.Some.aae, @Optional.Some(%Int.7ff11f.1) [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.168: %Destroy.type = facet_value %Int.7ff11f.1, (%Destroy.impl_witness.382) [symbolic]
-// CHECK:STDOUT:   %.a07: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.168 [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.046: %Destroy.type = facet_value %Int.7ff11f.1, (%Destroy.impl_witness.66a) [symbolic]
+// CHECK:STDOUT:   %.50a: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.046 [symbolic]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op, @Int.as.Destroy.impl.Op(%N.c80) [symbolic]
 // CHECK:STDOUT:   %Optional.None.type.8c4: type = fn_type @Optional.None, @Optional(%Int.7ff11f.1) [symbolic]
 // CHECK:STDOUT:   %Optional.None.7a7: %Optional.None.type.8c4 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.None.specific_fn.9e7: <specific function> = specific_function %Optional.None.7a7, @Optional.None(%Int.7ff11f.1) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.45d: <witness> = impl_witness imports.%Destroy.impl_witness_table.68d, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type.3e7: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.8a1: %IntRange.as.Destroy.impl.Op.type.3e7 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.e5b: <witness> = impl_witness imports.%Destroy.impl_witness_table.0cc, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type.e28: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%N.c80) [symbolic]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.a7f: %IntRange.as.Destroy.impl.Op.type.e28 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.710: type = ptr_type %IntRange.349 [symbolic]
 // CHECK:STDOUT:   %pattern_type.99f: type = pattern_type %ptr.710 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.7ed: <witness> = impl_witness imports.%Destroy.impl_witness_table.68d, @IntRange.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type.10e: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.920: %IntRange.as.Destroy.impl.Op.type.10e = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cc2: <witness> = impl_witness imports.%Destroy.impl_witness_table.0cc, @IntRange.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type.c5f: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.754: %IntRange.as.Destroy.impl.Op.type.c5f = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.049: type = ptr_type %IntRange.365 [concrete]
 // CHECK:STDOUT:   %pattern_type.37a: type = pattern_type %ptr.049 [concrete]
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %IntRange.as.Destroy.impl.Op.920, @IntRange.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %IntRange.as.Destroy.impl.Op.754, @IntRange.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -926,34 +926,34 @@ fn Read() {
 // CHECK:STDOUT:   %Main.import_ref.261 = import_ref Main//lib, loc23_18, unloaded
 // CHECK:STDOUT:   %Main.import_ref.f1e294.2: Core.IntLiteral = import_ref Main//lib, loc4_16, loaded [symbolic = @IntRange.%N (constants.%N.c80)]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.45b = import_ref Core//prelude/types/int, loc13_29, unloaded
-// CHECK:STDOUT:   %Destroy.impl_witness_table.14b = impl_witness_table (%Core.import_ref.45b), @Int.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.a86c: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e36 = impl_witness_table (%Core.import_ref.a86c), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.e33 = import_ref Core//prelude/types/int, loc52_46, unloaded
-// CHECK:STDOUT:   %Core.import_ref.a58 = import_ref Core//prelude/types/int, loc53_58, unloaded
-// CHECK:STDOUT:   %Core.import_ref.a39 = import_ref Core//prelude/types/int, loc54_49, unloaded
-// CHECK:STDOUT:   %Core.import_ref.c4c = import_ref Core//prelude/types/int, loc55_61, unloaded
-// CHECK:STDOUT:   %OrderedWith.impl_witness_table.0e1 = impl_witness_table (%Core.import_ref.e33, %Core.import_ref.a58, %Core.import_ref.a39, %Core.import_ref.c4c), @Int.as.OrderedWith.impl.5b6 [concrete]
+// CHECK:STDOUT:   %Core.import_ref.eb9 = import_ref Core//prelude/types/int, loc13_29, unloaded
+// CHECK:STDOUT:   %Destroy.impl_witness_table.a97 = impl_witness_table (%Core.import_ref.eb9), @Int.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7bb: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ba4 = impl_witness_table (%Core.import_ref.7bb), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.168 = import_ref Core//prelude/types/int, loc52_46, unloaded
+// CHECK:STDOUT:   %Core.import_ref.ce7d = import_ref Core//prelude/types/int, loc53_58, unloaded
+// CHECK:STDOUT:   %Core.import_ref.fbf = import_ref Core//prelude/types/int, loc54_49, unloaded
+// CHECK:STDOUT:   %Core.import_ref.0c6 = import_ref Core//prelude/types/int, loc55_61, unloaded
+// CHECK:STDOUT:   %OrderedWith.impl_witness_table.d62 = impl_witness_table (%Core.import_ref.168, %Core.import_ref.ce7d, %Core.import_ref.fbf, %Core.import_ref.0c6), @Int.as.OrderedWith.impl.460 [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.0c8 = import_ref Main//lib, loc9_87, unloaded
+// CHECK:STDOUT:   %Main.import_ref.db2 = import_ref Main//lib, loc9_87, unloaded
 // CHECK:STDOUT:   %Main.import_ref.f1e294.3: Core.IntLiteral = import_ref Main//lib, loc4_16, loaded [symbolic = @IntRange.%N (constants.%N.c80)]
 // CHECK:STDOUT:   %Main.import_ref.daedfd.1: type = import_ref Main//lib, loc9_8, loaded [symbolic = @IntRange.as.Iterate.impl.%IntRange (constants.%IntRange.349)]
-// CHECK:STDOUT:   %Main.import_ref.ce4: type = import_ref Main//lib, loc9_24, loaded [symbolic = @IntRange.as.Iterate.impl.%Iterate_where.type (constants.%Iterate_where.type.2cb)]
+// CHECK:STDOUT:   %Main.import_ref.684: type = import_ref Main//lib, loc9_24, loaded [symbolic = @IntRange.as.Iterate.impl.%Iterate_where.type (constants.%Iterate_where.type.156)]
 // CHECK:STDOUT:   %Main.import_ref.e3faa9.1 = import_ref Main//lib, loc9_87, unloaded
 // CHECK:STDOUT:   %Main.import_ref.e3faa9.2 = import_ref Main//lib, loc9_87, unloaded
-// CHECK:STDOUT:   %Main.import_ref.11c = import_ref Main//lib, loc10_47, unloaded
-// CHECK:STDOUT:   %Main.import_ref.f97 = import_ref Main//lib, loc11_77, unloaded
-// CHECK:STDOUT:   %Iterate.impl_witness_table.b32 = impl_witness_table (%Main.import_ref.e3faa9.1, %Main.import_ref.e3faa9.2, %Main.import_ref.11c, %Main.import_ref.f97), @IntRange.as.Iterate.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.2bb = import_ref Main//lib, loc10_47, unloaded
+// CHECK:STDOUT:   %Main.import_ref.26d = import_ref Main//lib, loc11_77, unloaded
+// CHECK:STDOUT:   %Iterate.impl_witness_table.f60 = impl_witness_table (%Main.import_ref.e3faa9.1, %Main.import_ref.e3faa9.2, %Main.import_ref.2bb, %Main.import_ref.26d), @IntRange.as.Iterate.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.4: Core.IntLiteral = import_ref Main//lib, loc4_16, loaded [symbolic = @IntRange.%N (constants.%N.c80)]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.5: Core.IntLiteral = import_ref Main//lib, loc4_16, loaded [symbolic = @IntRange.%N (constants.%N.c80)]
 // CHECK:STDOUT:   %Main.import_ref.026 = import_ref Main//lib, inst1846 [indirect], unloaded
-// CHECK:STDOUT:   %Main.import_ref.bdb: <witness> = import_ref Main//lib, loc4_39, loaded [symbolic = @IntRange.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.45d)]
+// CHECK:STDOUT:   %Main.import_ref.272: <witness> = import_ref Main//lib, loc4_39, loaded [symbolic = @IntRange.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.e5b)]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.6: Core.IntLiteral = import_ref Main//lib, loc4_16, loaded [symbolic = @IntRange.%N (constants.%N.c80)]
 // CHECK:STDOUT:   %Main.import_ref.daedfd.2: type = import_ref Main//lib, loc4_39, loaded [symbolic = @IntRange.as.Destroy.impl.%IntRange (constants.%IntRange.349)]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//lib, inst401 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.967: @IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op.type (%IntRange.as.Destroy.impl.Op.type.3e7) = import_ref Main//lib, loc4_39, loaded [symbolic = @IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op (constants.%IntRange.as.Destroy.impl.Op.8a1)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.68d = impl_witness_table (%Main.import_ref.967), @IntRange.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//lib, inst401 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.302: @IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op.type (%IntRange.as.Destroy.impl.Op.type.e28) = import_ref Main//lib, loc4_39, loaded [symbolic = @IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op (constants.%IntRange.as.Destroy.impl.Op.a7f)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.0cc = impl_witness_table (%Main.import_ref.302), @IntRange.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.7: Core.IntLiteral = import_ref Main//lib, loc4_16, loaded [symbolic = @IntRange.%N (constants.%N.c80)]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -973,9 +973,9 @@ fn Read() {
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.c80)]
 // CHECK:STDOUT:   %IntRange: type = class_type @IntRange, @IntRange(%N) [symbolic = %IntRange (constants.%IntRange.349)]
 // CHECK:STDOUT:   %Int: type = class_type @Int, @Int(%N) [symbolic = %Int (constants.%Int.7ff11f.1)]
-// CHECK:STDOUT:   %Iterate_where.type: type = facet_type <@Iterate where constants.%impl.elem0.a12 = %Int and constants.%impl.elem1 = %Int> [symbolic = %Iterate_where.type (constants.%Iterate_where.type.2cb)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Iterate_where.type [symbolic = %require_complete (constants.%require_complete.6f5)]
-// CHECK:STDOUT:   %Iterate.impl_witness: <witness> = impl_witness imports.%Iterate.impl_witness_table.b32, @IntRange.as.Iterate.impl(%N) [symbolic = %Iterate.impl_witness (constants.%Iterate.impl_witness.d2b)]
+// CHECK:STDOUT:   %Iterate_where.type: type = facet_type <@Iterate where constants.%impl.elem0.9e6 = %Int and constants.%impl.elem1 = %Int> [symbolic = %Iterate_where.type (constants.%Iterate_where.type.156)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Iterate_where.type [symbolic = %require_complete (constants.%require_complete.bdc)]
+// CHECK:STDOUT:   %Iterate.impl_witness: <witness> = impl_witness imports.%Iterate.impl_witness_table.f60, @IntRange.as.Iterate.impl(%N) [symbolic = %Iterate.impl_witness (constants.%Iterate.impl_witness.312)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor.type: type = fn_type @IntRange.as.Iterate.impl.NewCursor, @IntRange.as.Iterate.impl(%N) [symbolic = %IntRange.as.Iterate.impl.NewCursor.type (constants.%IntRange.as.Iterate.impl.NewCursor.type)]
@@ -983,24 +983,24 @@ fn Read() {
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.Next.type: type = fn_type @IntRange.as.Iterate.impl.Next, @IntRange.as.Iterate.impl(%N) [symbolic = %IntRange.as.Iterate.impl.Next.type (constants.%IntRange.as.Iterate.impl.Next.type)]
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.Next: @IntRange.as.Iterate.impl.%IntRange.as.Iterate.impl.Next.type (%IntRange.as.Iterate.impl.Next.type) = struct_value () [symbolic = %IntRange.as.Iterate.impl.Next (constants.%IntRange.as.Iterate.impl.Next)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.daedfd.1 as imports.%Main.import_ref.ce4 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.daedfd.1 as imports.%Main.import_ref.684 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.0c8
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.db2
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @IntRange.as.Destroy.impl(imports.%Main.import_ref.f1e294.6: Core.IntLiteral) [from "lib.carbon"] {
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.c80)]
 // CHECK:STDOUT:   %IntRange: type = class_type @IntRange, @IntRange(%N) [symbolic = %IntRange (constants.%IntRange.349)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.68d, @IntRange.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.45d)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.0cc, @IntRange.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e5b)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%N) [symbolic = %IntRange.as.Destroy.impl.Op.type (constants.%IntRange.as.Destroy.impl.Op.type.3e7)]
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op: @IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op.type (%IntRange.as.Destroy.impl.Op.type.3e7) = struct_value () [symbolic = %IntRange.as.Destroy.impl.Op (constants.%IntRange.as.Destroy.impl.Op.8a1)]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type: type = fn_type @IntRange.as.Destroy.impl.Op, @IntRange.as.Destroy.impl(%N) [symbolic = %IntRange.as.Destroy.impl.Op.type (constants.%IntRange.as.Destroy.impl.Op.type.e28)]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op: @IntRange.as.Destroy.impl.%IntRange.as.Destroy.impl.Op.type (%IntRange.as.Destroy.impl.Op.type.e28) = struct_value () [symbolic = %IntRange.as.Destroy.impl.Op (constants.%IntRange.as.Destroy.impl.Op.a7f)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.daedfd.2 as imports.%Main.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.daedfd.2 as imports.%Main.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.bdb
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.272
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1051,13 +1051,13 @@ fn Read() {
 // CHECK:STDOUT:   %Range.ref: %Range.type = name_ref Range, imports.%Main.Range [concrete = constants.%Range]
 // CHECK:STDOUT:   %y.ref: Core.IntLiteral = name_ref y, %y [symbolic = constants.%y]
 // CHECK:STDOUT:   %.loc6_3: ref %IntRange.365 = splice_block %x.var {}
-// CHECK:STDOUT:   %impl.elem0: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
-// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %y.ref, %impl.elem0 [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.971]
+// CHECK:STDOUT:   %impl.elem0: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
+// CHECK:STDOUT:   %bound_method.loc6_31.1: <bound method> = bound_method %y.ref, %impl.elem0 [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.3c2]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %y.ref, %specific_fn [symbolic = constants.%bound_method.d68]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc6_31.2(%y.ref) [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call.58b]
-// CHECK:STDOUT:   %.loc6_31.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call.58b]
-// CHECK:STDOUT:   %.loc6_31.2: %i32 = converted %y.ref, %.loc6_31.1 [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call.58b]
+// CHECK:STDOUT:   %bound_method.loc6_31.2: <bound method> = bound_method %y.ref, %specific_fn [symbolic = constants.%bound_method.96b]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc6_31.2(%y.ref) [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call.029]
+// CHECK:STDOUT:   %.loc6_31.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call.029]
+// CHECK:STDOUT:   %.loc6_31.2: %i32 = converted %y.ref, %.loc6_31.1 [symbolic = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.call.029]
 // CHECK:STDOUT:   %Range.call: init %IntRange.365 = call %Range.ref(%.loc6_31.2) to %.loc6_3
 // CHECK:STDOUT:   assign %x.var, %Range.call
 // CHECK:STDOUT:   %.loc6_21: type = splice_block %IntRange [concrete = constants.%IntRange.365] {
@@ -1066,8 +1066,8 @@ fn Read() {
 // CHECK:STDOUT:     %IntRange: type = class_type @IntRange, @IntRange(constants.%int_32) [concrete = constants.%IntRange.365]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %IntRange.365 = bind_name x, %x.var
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%IntRange.as.Destroy.impl.Op.920
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%IntRange.as.Destroy.impl.Op.920, @IntRange.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%IntRange.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%IntRange.as.Destroy.impl.Op.754
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%IntRange.as.Destroy.impl.Op.754, @IntRange.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%IntRange.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_3: <bound method> = bound_method %x.var, %IntRange.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.049 = addr_of %x.var
 // CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc6_3(%addr)
@@ -1123,28 +1123,28 @@ fn Read() {
 // CHECK:STDOUT:   %require_complete.4: <witness> = require_complete_type %Int [symbolic = %require_complete.4 (constants.%require_complete.ffde5f.1)]
 // CHECK:STDOUT:   %pattern_type.4: type = pattern_type %Int [symbolic = %pattern_type.4 (constants.%pattern_type.0ede7b.1)]
 // CHECK:STDOUT:   %IntRange.elem: type = unbound_element_type %IntRange, %Int [symbolic = %IntRange.elem (constants.%IntRange.elem.ecb)]
-// CHECK:STDOUT:   %OrderedWith.type: type = facet_type <@OrderedWith, @OrderedWith(%Int)> [symbolic = %OrderedWith.type (constants.%OrderedWith.type.256)]
-// CHECK:STDOUT:   %require_complete.5: <witness> = require_complete_type %OrderedWith.type [symbolic = %require_complete.5 (constants.%require_complete.10b)]
+// CHECK:STDOUT:   %OrderedWith.type: type = facet_type <@OrderedWith, @OrderedWith(%Int)> [symbolic = %OrderedWith.type (constants.%OrderedWith.type.ebc)]
+// CHECK:STDOUT:   %require_complete.5: <witness> = require_complete_type %OrderedWith.type [symbolic = %require_complete.5 (constants.%require_complete.a77)]
 // CHECK:STDOUT:   %OrderedWith.assoc_type: type = assoc_entity_type @OrderedWith, @OrderedWith(%Int) [symbolic = %OrderedWith.assoc_type (constants.%OrderedWith.assoc_type.e53)]
 // CHECK:STDOUT:   %assoc0: @IntRange.as.Iterate.impl.Next.%OrderedWith.assoc_type (%OrderedWith.assoc_type.e53) = assoc_entity element0, imports.%Main.import_ref.026 [symbolic = %assoc0 (constants.%assoc0.4a4)]
-// CHECK:STDOUT:   %OrderedWith.impl_witness: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.0e1, @Int.as.OrderedWith.impl.5b6(%N, %N) [symbolic = %OrderedWith.impl_witness (constants.%OrderedWith.impl_witness.350)]
+// CHECK:STDOUT:   %OrderedWith.impl_witness: <witness> = impl_witness imports.%OrderedWith.impl_witness_table.d62, @Int.as.OrderedWith.impl.460(%N, %N) [symbolic = %OrderedWith.impl_witness (constants.%OrderedWith.impl_witness.e37)]
 // CHECK:STDOUT:   %OrderedWith.Less.type: type = fn_type @OrderedWith.Less, @OrderedWith(%Int) [symbolic = %OrderedWith.Less.type (constants.%OrderedWith.Less.type.016)]
-// CHECK:STDOUT:   %OrderedWith.facet: @IntRange.as.Iterate.impl.Next.%OrderedWith.type (%OrderedWith.type.256) = facet_value %Int, (%OrderedWith.impl_witness) [symbolic = %OrderedWith.facet (constants.%OrderedWith.facet)]
-// CHECK:STDOUT:   %.1: type = fn_type_with_self_type %OrderedWith.Less.type, %OrderedWith.facet [symbolic = %.1 (constants.%.3bd)]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.5b6(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.type (constants.%Int.as.OrderedWith.impl.Less.type.4f5)]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less: @IntRange.as.Iterate.impl.Next.%Int.as.OrderedWith.impl.Less.type (%Int.as.OrderedWith.impl.Less.type.4f5) = struct_value () [symbolic = %Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.3b5)]
-// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn: <specific function> = specific_function %Int.as.OrderedWith.impl.Less, @Int.as.OrderedWith.impl.Less.1(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.specific_fn (constants.%Int.as.OrderedWith.impl.Less.specific_fn.5e2)]
+// CHECK:STDOUT:   %OrderedWith.facet: @IntRange.as.Iterate.impl.Next.%OrderedWith.type (%OrderedWith.type.ebc) = facet_value %Int, (%OrderedWith.impl_witness) [symbolic = %OrderedWith.facet (constants.%OrderedWith.facet)]
+// CHECK:STDOUT:   %.1: type = fn_type_with_self_type %OrderedWith.Less.type, %OrderedWith.facet [symbolic = %.1 (constants.%.ae5)]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.type: type = fn_type @Int.as.OrderedWith.impl.Less.1, @Int.as.OrderedWith.impl.460(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.type (constants.%Int.as.OrderedWith.impl.Less.type.ac6)]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less: @IntRange.as.Iterate.impl.Next.%Int.as.OrderedWith.impl.Less.type (%Int.as.OrderedWith.impl.Less.type.ac6) = struct_value () [symbolic = %Int.as.OrderedWith.impl.Less (constants.%Int.as.OrderedWith.impl.Less.4d5)]
+// CHECK:STDOUT:   %Int.as.OrderedWith.impl.Less.specific_fn: <specific function> = specific_function %Int.as.OrderedWith.impl.Less, @Int.as.OrderedWith.impl.Less.1(%N, %N) [symbolic = %Int.as.OrderedWith.impl.Less.specific_fn (constants.%Int.as.OrderedWith.impl.Less.specific_fn.05f)]
 // CHECK:STDOUT:   %Inc.lookup_impl_witness: <witness> = lookup_impl_witness %Int, @Inc [symbolic = %Inc.lookup_impl_witness (constants.%Inc.lookup_impl_witness)]
 // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %Int, (%Inc.lookup_impl_witness) [symbolic = %Inc.facet (constants.%Inc.facet)]
-// CHECK:STDOUT:   %.2: type = fn_type_with_self_type constants.%Inc.Op.type, %Inc.facet [symbolic = %.2 (constants.%.15d)]
-// CHECK:STDOUT:   %impl.elem0: @IntRange.as.Iterate.impl.Next.%.2 (%.15d) = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0.181)]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Inc.Op(%Inc.facet) [symbolic = %specific_impl_fn (constants.%specific_impl_fn.be7)]
+// CHECK:STDOUT:   %.2: type = fn_type_with_self_type constants.%Inc.Op.type, %Inc.facet [symbolic = %.2 (constants.%.b15)]
+// CHECK:STDOUT:   %impl.elem0: @IntRange.as.Iterate.impl.Next.%.2 (%.b15) = impl_witness_access %Inc.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0.d38)]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Inc.Op(%Inc.facet) [symbolic = %specific_impl_fn (constants.%specific_impl_fn.715)]
 // CHECK:STDOUT:   %Optional.Some.type: type = fn_type @Optional.Some, @Optional(%Int) [symbolic = %Optional.Some.type (constants.%Optional.Some.type.fe1)]
 // CHECK:STDOUT:   %Optional.Some: @IntRange.as.Iterate.impl.Next.%Optional.Some.type (%Optional.Some.type.fe1) = struct_value () [symbolic = %Optional.Some (constants.%Optional.Some.aae)]
 // CHECK:STDOUT:   %Optional.Some.specific_fn: <specific function> = specific_function %Optional.Some, @Optional.Some(%Int) [symbolic = %Optional.Some.specific_fn (constants.%Optional.Some.specific_fn.b8a)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.14b, @Int.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.382)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.168)]
-// CHECK:STDOUT:   %.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.3 (constants.%.a07)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.a97, @Int.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.66a)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.046)]
+// CHECK:STDOUT:   %.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.3 (constants.%.50a)]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N) [symbolic = %Int.as.Destroy.impl.Op.type (constants.%Int.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op: @IntRange.as.Iterate.impl.Next.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type) = struct_value () [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op)]
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op, @Int.as.Destroy.impl.Op(%N) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn)]
@@ -1206,9 +1206,9 @@ fn Read() {
 // CHECK:STDOUT:   %N => constants.%N.c80
 // CHECK:STDOUT:   %IntRange => constants.%IntRange.349
 // CHECK:STDOUT:   %Int => constants.%Int.7ff11f.1
-// CHECK:STDOUT:   %Iterate_where.type => constants.%Iterate_where.type.2cb
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.6f5
-// CHECK:STDOUT:   %Iterate.impl_witness => constants.%Iterate.impl_witness.d2b
+// CHECK:STDOUT:   %Iterate_where.type => constants.%Iterate_where.type.156
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.bdc
+// CHECK:STDOUT:   %Iterate.impl_witness => constants.%Iterate.impl_witness.312
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %IntRange.as.Iterate.impl.NewCursor.type => constants.%IntRange.as.Iterate.impl.NewCursor.type
@@ -1239,7 +1239,7 @@ fn Read() {
 // CHECK:STDOUT: specific @IntRange.as.Destroy.impl(constants.%N.c80) {
 // CHECK:STDOUT:   %N => constants.%N.c80
 // CHECK:STDOUT:   %IntRange => constants.%IntRange.349
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.45d
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e5b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @IntRange.as.Destroy.impl.Op(constants.%N.c80) {
@@ -1252,11 +1252,11 @@ fn Read() {
 // CHECK:STDOUT: specific @IntRange.as.Destroy.impl(constants.%int_32) {
 // CHECK:STDOUT:   %N => constants.%int_32
 // CHECK:STDOUT:   %IntRange => constants.%IntRange.365
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ed
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.cc2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type => constants.%IntRange.as.Destroy.impl.Op.type.10e
-// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op => constants.%IntRange.as.Destroy.impl.Op.920
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op.type => constants.%IntRange.as.Destroy.impl.Op.type.c5f
+// CHECK:STDOUT:   %IntRange.as.Destroy.impl.Op => constants.%IntRange.as.Destroy.impl.Op.754
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @IntRange.as.Destroy.impl.Op(constants.%int_32) {
diff --git a/toolchain/check/testdata/for/basic.carbon b/toolchain/check/testdata/for/basic.carbon
index 83252f8b0f38..2da5069eb4eb 100644
--- a/toolchain/check/testdata/for/basic.carbon
+++ b/toolchain/check/testdata/for/basic.carbon
@@ -67,16 +67,16 @@ fn Run() {
 // CHECK:STDOUT:   %Optional.Get.type.e03: type = fn_type @Optional.Get, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.Get.971: %Optional.Get.type.e03 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Iterate.impl_witness: <witness> = impl_witness @TrivialRange.%Iterate.impl_witness_table [concrete]
-// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.1: type = fn_type @TrivialRange.as.Iterate.impl.NewCursor.loc6_32.1 [concrete]
-// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.c20a1c.1: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.type.10eda3.1: type = fn_type @TrivialRange.as.Iterate.impl.NewCursor.loc6_32.1 [concrete]
+// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.cc1111.1: %TrivialRange.as.Iterate.impl.NewCursor.type.10eda3.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %Optional.f9a: type = class_type @Optional, @Optional(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.Next.type: type = fn_type @TrivialRange.as.Iterate.impl.Next [concrete]
 // CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.Next: %TrivialRange.as.Iterate.impl.Next.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Iterate.facet.d50: %Iterate.type = facet_value %TrivialRange, (%Iterate.impl_witness) [concrete]
+// CHECK:STDOUT:   %Iterate.facet.d75: %Iterate.type = facet_value %TrivialRange, (%Iterate.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.2: type = fn_type @TrivialRange.as.Iterate.impl.NewCursor.loc6_32.2 [concrete]
-// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.c20a1c.2: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.type.10eda3.2: type = fn_type @TrivialRange.as.Iterate.impl.NewCursor.loc6_32.2 [concrete]
+// CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.cc1111.2: %TrivialRange.as.Iterate.impl.NewCursor.type.10eda3.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.41d: type = ptr_type %TrivialRange [concrete]
 // CHECK:STDOUT:   %TrivialRange.as.Destroy.impl.Op.type: type = fn_type @TrivialRange.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %TrivialRange.as.Destroy.impl.Op: %TrivialRange.as.Destroy.impl.Op.type = struct_value () [concrete]
@@ -86,19 +86,19 @@ fn Run() {
 // CHECK:STDOUT:   %Optional.Get.type.130: type = fn_type @Optional.Get, @Optional(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %Optional.Get.6e8: %Optional.Get.type.130 = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %Body.type: type = fn_type @Body [concrete]
 // CHECK:STDOUT:   %Body: %Body.type = struct_value () [concrete]
 // CHECK:STDOUT:   %AfterLoop.type: type = fn_type @AfterLoop [concrete]
 // CHECK:STDOUT:   %AfterLoop: %AfterLoop.type = struct_value () [concrete]
 // CHECK:STDOUT:   %TrivialRange.val: %TrivialRange = struct_value () [concrete]
-// CHECK:STDOUT:   %.510: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet.d50 [concrete]
-// CHECK:STDOUT:   %.708: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet.d50 [concrete]
+// CHECK:STDOUT:   %.626: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet.d75 [concrete]
+// CHECK:STDOUT:   %.e55: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet.d75 [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.specific_fn: <specific function> = specific_function %Optional.HasValue.ada, @Optional.HasValue(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %Optional.Get.specific_fn: <specific function> = specific_function %Optional.Get.6e8, @Optional.Get(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.0d8: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.160: %Optional.as.Destroy.impl.Op.type.0d8 = struct_value () [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.4fd: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.290: %Optional.as.Destroy.impl.Op.type.4fd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.511: type = ptr_type %Optional.f9a [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -118,10 +118,10 @@ fn Run() {
 // CHECK:STDOUT:   %.loc18_18.3: init %TrivialRange = class_init (), %.loc18_18.2 [concrete = constants.%TrivialRange.val]
 // CHECK:STDOUT:   %.loc18_18.4: ref %TrivialRange = temporary %.loc18_18.2, %.loc18_18.3
 // CHECK:STDOUT:   %.loc18_20.1: ref %TrivialRange = converted %.loc18_18.1, %.loc18_18.4
-// CHECK:STDOUT:   %impl.elem2: %.510 = impl_witness_access constants.%Iterate.impl_witness, element2 [concrete = constants.%TrivialRange.as.Iterate.impl.NewCursor.c20a1c.2]
+// CHECK:STDOUT:   %impl.elem2: %.626 = impl_witness_access constants.%Iterate.impl_witness, element2 [concrete = constants.%TrivialRange.as.Iterate.impl.NewCursor.cc1111.2]
 // CHECK:STDOUT:   %bound_method.loc18_35.1: <bound method> = bound_method %.loc18_20.1, %impl.elem2
 // CHECK:STDOUT:   %.loc18_20.2: %TrivialRange = bind_value %.loc18_20.1
-// CHECK:STDOUT:   %NewCursor.ref: %TrivialRange.as.Iterate.impl.NewCursor.type.bd2331.1 = name_ref NewCursor, @TrivialRange.as.Iterate.impl.%TrivialRange.as.Iterate.impl.NewCursor.decl.loc6_32.1 [concrete = constants.%TrivialRange.as.Iterate.impl.NewCursor.c20a1c.1]
+// CHECK:STDOUT:   %NewCursor.ref: %TrivialRange.as.Iterate.impl.NewCursor.type.10eda3.1 = name_ref NewCursor, @TrivialRange.as.Iterate.impl.%TrivialRange.as.Iterate.impl.NewCursor.decl.loc6_32.1 [concrete = constants.%TrivialRange.as.Iterate.impl.NewCursor.cc1111.1]
 // CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.bound: <bound method> = bound_method %.loc18_20.2, %NewCursor.ref
 // CHECK:STDOUT:   %TrivialRange.as.Iterate.impl.NewCursor.call: init %empty_tuple.type = call %TrivialRange.as.Iterate.impl.NewCursor.bound(%.loc18_20.2)
 // CHECK:STDOUT:   %var: ref %empty_tuple.type = var invalid
@@ -130,7 +130,7 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.next:
 // CHECK:STDOUT:   %addr.loc18_35.1: %ptr.843 = addr_of %var
-// CHECK:STDOUT:   %impl.elem3: %.708 = impl_witness_access constants.%Iterate.impl_witness, element3 [concrete = constants.%TrivialRange.as.Iterate.impl.Next]
+// CHECK:STDOUT:   %impl.elem3: %.e55 = impl_witness_access constants.%Iterate.impl_witness, element3 [concrete = constants.%TrivialRange.as.Iterate.impl.Next]
 // CHECK:STDOUT:   %bound_method.loc18_35.2: <bound method> = bound_method %.loc18_20.1, %impl.elem3
 // CHECK:STDOUT:   %.loc18_35.1: ref %Optional.f9a = temporary_storage
 // CHECK:STDOUT:   %.loc18_20.3: %TrivialRange = bind_value %.loc18_20.1
@@ -171,17 +171,17 @@ fn Run() {
 // CHECK:STDOUT: !for.done:
 // CHECK:STDOUT:   %AfterLoop.ref: %AfterLoop.type = name_ref AfterLoop, file.%AfterLoop.decl [concrete = constants.%AfterLoop]
 // CHECK:STDOUT:   %AfterLoop.call: init %empty_tuple.type = call %AfterLoop.ref()
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_35.1: <bound method> = bound_method %.loc18_35.10, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_35.1: <bound method> = bound_method %.loc18_35.10, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc18_35.5: <bound method> = bound_method %.loc18_35.10, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc18_35.2: %ptr.843 = addr_of %.loc18_35.10
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc18_35.1: init %empty_tuple.type = call %bound_method.loc18_35.5(%addr.loc18_35.2)
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc18_35.2, constants.%Optional.as.Destroy.impl.Op.160
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc18_35.2, constants.%Optional.as.Destroy.impl.Op.290
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc18_35.6: <bound method> = bound_method %.loc18_35.2, %Optional.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc18_35.3: %ptr.511 = addr_of %.loc18_35.2
 // CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc18_35.6(%addr.loc18_35.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_35.2: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.ea3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18_35.2: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.bae
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc18_35.7: <bound method> = bound_method %var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc18_35.4: %ptr.843 = addr_of %var
diff --git a/toolchain/check/testdata/for/pattern.carbon b/toolchain/check/testdata/for/pattern.carbon
index 85bc7e87048b..f7fac078560f 100644
--- a/toolchain/check/testdata/for/pattern.carbon
+++ b/toolchain/check/testdata/for/pattern.carbon
@@ -142,39 +142,39 @@ fn Run() {
 // CHECK:STDOUT:   %EmptyRange.Make.specific_fn: <specific function> = specific_function %EmptyRange.Make.74d, @EmptyRange.Make(%C) [concrete]
 // CHECK:STDOUT:   %Iterate.type: type = facet_type <@Iterate> [concrete]
 // CHECK:STDOUT:   %Iterate.NewCursor.type: type = fn_type @Iterate.NewCursor [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.f5f: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.ec1: %EmptyRange.as.Iterate.impl.NewCursor.type.f5f = struct_value () [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.264: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.08e: %EmptyRange.as.Iterate.impl.Next.type.264 = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.edc: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.894: %EmptyRange.as.Iterate.impl.NewCursor.type.edc = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.dc6: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.c1f: %EmptyRange.as.Iterate.impl.Next.type.dc6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.type.f81: type = fn_type @Optional.HasValue, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.6fd: %Optional.HasValue.type.f81 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.Get.type.b8f: type = fn_type @Optional.Get, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.Get.9c8: %Optional.Get.type.b8f = struct_value () [symbolic]
-// CHECK:STDOUT:   %Iterate.impl_witness.52a: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.951: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.535: %EmptyRange.as.Iterate.impl.NewCursor.type.951 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.63f: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.899: %EmptyRange.as.Iterate.impl.Next.type.63f = struct_value () [concrete]
-// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.cc8, (%Iterate.impl_witness.52a) [concrete]
-// CHECK:STDOUT:   %.2f6: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.535, @EmptyRange.as.Iterate.impl.NewCursor(%C) [concrete]
+// CHECK:STDOUT:   %Iterate.impl_witness.c25: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.887: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.cea: %EmptyRange.as.Iterate.impl.NewCursor.type.887 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.6b4: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.7c1: %EmptyRange.as.Iterate.impl.Next.type.6b4 = struct_value () [concrete]
+// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.cc8, (%Iterate.impl_witness.c25) [concrete]
+// CHECK:STDOUT:   %.f8c: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.cea, @EmptyRange.as.Iterate.impl.NewCursor(%C) [concrete]
 // CHECK:STDOUT:   %Iterate.Next.type: type = fn_type @Iterate.Next [concrete]
-// CHECK:STDOUT:   %.5d5: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %.84f: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
 // CHECK:STDOUT:   %Optional.cf0: type = class_type @Optional, @Optional(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.899, @EmptyRange.as.Iterate.impl.Next(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.7c1, @EmptyRange.as.Iterate.impl.Next(%C) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.type.71d: type = fn_type @Optional.HasValue, @Optional(%C) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.513: %Optional.HasValue.type.71d = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.Get.type.115: type = fn_type @Optional.Get, @Optional(%C) [concrete]
 // CHECK:STDOUT:   %Optional.Get.9c1: %Optional.Get.type.115 = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.specific_fn: <specific function> = specific_function %Optional.HasValue.513, @Optional.HasValue(%C) [concrete]
 // CHECK:STDOUT:   %Optional.Get.specific_fn: <specific function> = specific_function %Optional.Get.9c1, @Optional.Get(%C) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.954: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.793: %Optional.as.Destroy.impl.Op.type.954 = struct_value () [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.45e: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.1e3: %Optional.as.Destroy.impl.Op.type.45e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.8e6: type = ptr_type %Optional.cf0 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.a22: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.256: %EmptyRange.as.Destroy.impl.Op.type.a22 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.9ef: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.046: %EmptyRange.as.Destroy.impl.Op.type.9ef = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.35d: type = ptr_type %EmptyRange.cc8 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -183,9 +183,9 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.6ea: @EmptyRange.%EmptyRange.Make.type (%EmptyRange.Make.type.bd2) = import_ref Main//empty_range, loc5_21, loaded [symbolic = @EmptyRange.%EmptyRange.Make (constants.%EmptyRange.Make.ed1)]
 // CHECK:STDOUT:   %Main.import_ref.6ce = import_ref Main//empty_range, loc7_68, unloaded
 // CHECK:STDOUT:   %Main.import_ref.999 = import_ref Main//empty_range, loc7_68, unloaded
-// CHECK:STDOUT:   %Main.import_ref.57b: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.f5f) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.ec1)]
-// CHECK:STDOUT:   %Main.import_ref.170: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.264) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.08e)]
-// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.57b, %Main.import_ref.170), @EmptyRange.as.Iterate.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.694: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.edc) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.894)]
+// CHECK:STDOUT:   %Main.import_ref.9dd: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.dc6) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.c1f)]
+// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.694, %Main.import_ref.9dd), @EmptyRange.as.Iterate.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.7f9: @Optional.%Optional.HasValue.type (%Optional.HasValue.type.f81) = import_ref Main//empty_range, inst139 [indirect], loaded [symbolic = @Optional.%Optional.HasValue (constants.%Optional.HasValue.6fd)]
 // CHECK:STDOUT:   %Main.import_ref.d10: @Optional.%Optional.Get.type (%Optional.Get.type.b8f) = import_ref Main//empty_range, inst140 [indirect], loaded [symbolic = @Optional.%Optional.Get (constants.%Optional.Get.9c8)]
 // CHECK:STDOUT: }
@@ -204,7 +204,7 @@ fn Run() {
 // CHECK:STDOUT:   %.loc12_35.1: ref %EmptyRange.cc8 = temporary_storage
 // CHECK:STDOUT:   %EmptyRange.Make.call: init %EmptyRange.cc8 = call %EmptyRange.Make.specific_fn() to %.loc12_35.1
 // CHECK:STDOUT:   %.loc12_35.2: ref %EmptyRange.cc8 = temporary %.loc12_35.1, %EmptyRange.Make.call
-// CHECK:STDOUT:   %impl.elem2: %.2f6 = impl_witness_access constants.%Iterate.impl_witness.52a, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.535]
+// CHECK:STDOUT:   %impl.elem2: %.f8c = impl_witness_access constants.%Iterate.impl_witness.c25, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.cea]
 // CHECK:STDOUT:   %bound_method.loc12_36.1: <bound method> = bound_method %.loc12_35.2, %impl.elem2
 // CHECK:STDOUT:   %specific_fn.loc12_36.1: <specific function> = specific_function %impl.elem2, @EmptyRange.as.Iterate.impl.NewCursor(constants.%C) [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_36.2: <bound method> = bound_method %.loc12_35.2, %specific_fn.loc12_36.1
@@ -216,7 +216,7 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.next:
 // CHECK:STDOUT:   %addr.loc12_36.1: %ptr.c28 = addr_of %var
-// CHECK:STDOUT:   %impl.elem3: %.5d5 = impl_witness_access constants.%Iterate.impl_witness.52a, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.899]
+// CHECK:STDOUT:   %impl.elem3: %.84f = impl_witness_access constants.%Iterate.impl_witness.c25, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.7c1]
 // CHECK:STDOUT:   %bound_method.loc12_36.3: <bound method> = bound_method %.loc12_35.2, %impl.elem3
 // CHECK:STDOUT:   %specific_fn.loc12_36.2: <specific function> = specific_function %impl.elem3, @EmptyRange.as.Iterate.impl.Next(constants.%C) [concrete = constants.%EmptyRange.as.Iterate.impl.Next.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_36.4: <bound method> = bound_method %.loc12_35.2, %specific_fn.loc12_36.2
@@ -257,17 +257,17 @@ fn Run() {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_36.10, constants.%C.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc12_36.2: %ptr.019 = addr_of %.loc12_36.10
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %C.as.Destroy.impl.Op.bound(%addr.loc12_36.2)
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_36.2, constants.%Optional.as.Destroy.impl.Op.793
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_36.2, constants.%Optional.as.Destroy.impl.Op.1e3
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_36.7: <bound method> = bound_method %.loc12_36.2, %Optional.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_36.3: %ptr.8e6 = addr_of %.loc12_36.2
 // CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_36.7(%addr.loc12_36.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.d5a
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.24b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_36.8: <bound method> = bound_method %var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_36.4: %ptr.c28 = addr_of %var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_36.8(%addr.loc12_36.4)
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_35.2, constants.%EmptyRange.as.Destroy.impl.Op.256
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_35.2, constants.%EmptyRange.as.Destroy.impl.Op.046
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_35: <bound method> = bound_method %.loc12_35.2, %EmptyRange.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_35: %ptr.35d = addr_of %.loc12_35.2
@@ -299,39 +299,39 @@ fn Run() {
 // CHECK:STDOUT:   %EmptyRange.Make.specific_fn: <specific function> = specific_function %EmptyRange.Make.74d, @EmptyRange.Make(%C) [concrete]
 // CHECK:STDOUT:   %Iterate.type: type = facet_type <@Iterate> [concrete]
 // CHECK:STDOUT:   %Iterate.NewCursor.type: type = fn_type @Iterate.NewCursor [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.f5f: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.ec1: %EmptyRange.as.Iterate.impl.NewCursor.type.f5f = struct_value () [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.264: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.08e: %EmptyRange.as.Iterate.impl.Next.type.264 = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.edc: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.894: %EmptyRange.as.Iterate.impl.NewCursor.type.edc = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.dc6: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.c1f: %EmptyRange.as.Iterate.impl.Next.type.dc6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.type.f81: type = fn_type @Optional.HasValue, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.6fd: %Optional.HasValue.type.f81 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.Get.type.b8f: type = fn_type @Optional.Get, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.Get.9c8: %Optional.Get.type.b8f = struct_value () [symbolic]
-// CHECK:STDOUT:   %Iterate.impl_witness.52a: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.951: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.535: %EmptyRange.as.Iterate.impl.NewCursor.type.951 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.63f: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.899: %EmptyRange.as.Iterate.impl.Next.type.63f = struct_value () [concrete]
-// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.cc8, (%Iterate.impl_witness.52a) [concrete]
-// CHECK:STDOUT:   %.2f6: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.535, @EmptyRange.as.Iterate.impl.NewCursor(%C) [concrete]
+// CHECK:STDOUT:   %Iterate.impl_witness.c25: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.887: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.cea: %EmptyRange.as.Iterate.impl.NewCursor.type.887 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.6b4: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.7c1: %EmptyRange.as.Iterate.impl.Next.type.6b4 = struct_value () [concrete]
+// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.cc8, (%Iterate.impl_witness.c25) [concrete]
+// CHECK:STDOUT:   %.f8c: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.cea, @EmptyRange.as.Iterate.impl.NewCursor(%C) [concrete]
 // CHECK:STDOUT:   %Iterate.Next.type: type = fn_type @Iterate.Next [concrete]
-// CHECK:STDOUT:   %.5d5: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %.84f: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
 // CHECK:STDOUT:   %Optional.cf0: type = class_type @Optional, @Optional(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.899, @EmptyRange.as.Iterate.impl.Next(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.7c1, @EmptyRange.as.Iterate.impl.Next(%C) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.type.71d: type = fn_type @Optional.HasValue, @Optional(%C) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.513: %Optional.HasValue.type.71d = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.Get.type.115: type = fn_type @Optional.Get, @Optional(%C) [concrete]
 // CHECK:STDOUT:   %Optional.Get.9c1: %Optional.Get.type.115 = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.specific_fn: <specific function> = specific_function %Optional.HasValue.513, @Optional.HasValue(%C) [concrete]
 // CHECK:STDOUT:   %Optional.Get.specific_fn: <specific function> = specific_function %Optional.Get.9c1, @Optional.Get(%C) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.954: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.793: %Optional.as.Destroy.impl.Op.type.954 = struct_value () [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.45e: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.1e3: %Optional.as.Destroy.impl.Op.type.45e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.8e6: type = ptr_type %Optional.cf0 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.a22: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.256: %EmptyRange.as.Destroy.impl.Op.type.a22 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.9ef: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.046: %EmptyRange.as.Destroy.impl.Op.type.9ef = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.35d: type = ptr_type %EmptyRange.cc8 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -340,9 +340,9 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.6ea: @EmptyRange.%EmptyRange.Make.type (%EmptyRange.Make.type.bd2) = import_ref Main//empty_range, loc5_21, loaded [symbolic = @EmptyRange.%EmptyRange.Make (constants.%EmptyRange.Make.ed1)]
 // CHECK:STDOUT:   %Main.import_ref.6ce = import_ref Main//empty_range, loc7_68, unloaded
 // CHECK:STDOUT:   %Main.import_ref.999 = import_ref Main//empty_range, loc7_68, unloaded
-// CHECK:STDOUT:   %Main.import_ref.57b: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.f5f) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.ec1)]
-// CHECK:STDOUT:   %Main.import_ref.170: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.264) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.08e)]
-// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.57b, %Main.import_ref.170), @EmptyRange.as.Iterate.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.694: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.edc) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.894)]
+// CHECK:STDOUT:   %Main.import_ref.9dd: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.dc6) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.c1f)]
+// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.694, %Main.import_ref.9dd), @EmptyRange.as.Iterate.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.7f9: @Optional.%Optional.HasValue.type (%Optional.HasValue.type.f81) = import_ref Main//empty_range, inst139 [indirect], loaded [symbolic = @Optional.%Optional.HasValue (constants.%Optional.HasValue.6fd)]
 // CHECK:STDOUT:   %Main.import_ref.d10: @Optional.%Optional.Get.type (%Optional.Get.type.b8f) = import_ref Main//empty_range, inst140 [indirect], loaded [symbolic = @Optional.%Optional.Get (constants.%Optional.Get.9c8)]
 // CHECK:STDOUT: }
@@ -362,7 +362,7 @@ fn Run() {
 // CHECK:STDOUT:   %.loc12_39.1: ref %EmptyRange.cc8 = temporary_storage
 // CHECK:STDOUT:   %EmptyRange.Make.call: init %EmptyRange.cc8 = call %EmptyRange.Make.specific_fn() to %.loc12_39.1
 // CHECK:STDOUT:   %.loc12_39.2: ref %EmptyRange.cc8 = temporary %.loc12_39.1, %EmptyRange.Make.call
-// CHECK:STDOUT:   %impl.elem2: %.2f6 = impl_witness_access constants.%Iterate.impl_witness.52a, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.535]
+// CHECK:STDOUT:   %impl.elem2: %.f8c = impl_witness_access constants.%Iterate.impl_witness.c25, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.cea]
 // CHECK:STDOUT:   %bound_method.loc12_40.1: <bound method> = bound_method %.loc12_39.2, %impl.elem2
 // CHECK:STDOUT:   %specific_fn.loc12_40.1: <specific function> = specific_function %impl.elem2, @EmptyRange.as.Iterate.impl.NewCursor(constants.%C) [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_40.2: <bound method> = bound_method %.loc12_39.2, %specific_fn.loc12_40.1
@@ -374,7 +374,7 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.next:
 // CHECK:STDOUT:   %addr.loc12_40.1: %ptr.c28 = addr_of %var
-// CHECK:STDOUT:   %impl.elem3: %.5d5 = impl_witness_access constants.%Iterate.impl_witness.52a, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.899]
+// CHECK:STDOUT:   %impl.elem3: %.84f = impl_witness_access constants.%Iterate.impl_witness.c25, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.7c1]
 // CHECK:STDOUT:   %bound_method.loc12_40.3: <bound method> = bound_method %.loc12_39.2, %impl.elem3
 // CHECK:STDOUT:   %specific_fn.loc12_40.2: <specific function> = specific_function %impl.elem3, @EmptyRange.as.Iterate.impl.Next(constants.%C) [concrete = constants.%EmptyRange.as.Iterate.impl.Next.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_40.4: <bound method> = bound_method %.loc12_39.2, %specific_fn.loc12_40.2
@@ -416,17 +416,17 @@ fn Run() {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%C.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc12_8: %ptr.019 = addr_of %c.var
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %C.as.Destroy.impl.Op.bound(%addr.loc12_8)
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_40.2, constants.%Optional.as.Destroy.impl.Op.793
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_40.2, constants.%Optional.as.Destroy.impl.Op.1e3
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_40.7: <bound method> = bound_method %.loc12_40.2, %Optional.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_40.2: %ptr.8e6 = addr_of %.loc12_40.2
 // CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_40.7(%addr.loc12_40.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.d5a
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.24b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_40.8: <bound method> = bound_method %var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_40.3: %ptr.c28 = addr_of %var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_40.8(%addr.loc12_40.3)
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_39.2, constants.%EmptyRange.as.Destroy.impl.Op.256
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_39.2, constants.%EmptyRange.as.Destroy.impl.Op.046
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_39: <bound method> = bound_method %.loc12_39.2, %EmptyRange.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_39: %ptr.35d = addr_of %.loc12_39.2
@@ -459,26 +459,26 @@ fn Run() {
 // CHECK:STDOUT:   %EmptyRange.Make.specific_fn: <specific function> = specific_function %EmptyRange.Make.743, @EmptyRange.Make(%tuple.type.784) [concrete]
 // CHECK:STDOUT:   %Iterate.type: type = facet_type <@Iterate> [concrete]
 // CHECK:STDOUT:   %Iterate.NewCursor.type: type = fn_type @Iterate.NewCursor [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.f5f: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.ec1: %EmptyRange.as.Iterate.impl.NewCursor.type.f5f = struct_value () [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.264: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.08e: %EmptyRange.as.Iterate.impl.Next.type.264 = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.edc: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.894: %EmptyRange.as.Iterate.impl.NewCursor.type.edc = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.dc6: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.c1f: %EmptyRange.as.Iterate.impl.Next.type.dc6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.type.f81: type = fn_type @Optional.HasValue, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.6fd: %Optional.HasValue.type.f81 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.Get.type.b8f: type = fn_type @Optional.Get, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.Get.9c8: %Optional.Get.type.b8f = struct_value () [symbolic]
-// CHECK:STDOUT:   %Iterate.impl_witness.6db: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.d32: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.763: %EmptyRange.as.Iterate.impl.NewCursor.type.d32 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.482: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.e60: %EmptyRange.as.Iterate.impl.Next.type.482 = struct_value () [concrete]
-// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.2f3, (%Iterate.impl_witness.6db) [concrete]
-// CHECK:STDOUT:   %.2bf: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.763, @EmptyRange.as.Iterate.impl.NewCursor(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %Iterate.impl_witness.eee: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.174: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.50d: %EmptyRange.as.Iterate.impl.NewCursor.type.174 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.890: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.191: %EmptyRange.as.Iterate.impl.Next.type.890 = struct_value () [concrete]
+// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.2f3, (%Iterate.impl_witness.eee) [concrete]
+// CHECK:STDOUT:   %.85a: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.50d, @EmptyRange.as.Iterate.impl.NewCursor(%tuple.type.784) [concrete]
 // CHECK:STDOUT:   %Iterate.Next.type: type = fn_type @Iterate.Next [concrete]
-// CHECK:STDOUT:   %.6aa: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %.5c2: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
 // CHECK:STDOUT:   %Optional.79e: type = class_type @Optional, @Optional(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.e60, @EmptyRange.as.Iterate.impl.Next(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.191, @EmptyRange.as.Iterate.impl.Next(%tuple.type.784) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.type.414: type = fn_type @Optional.HasValue, @Optional(%tuple.type.784) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.4f9: %Optional.HasValue.type.414 = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.Get.type.ebd: type = fn_type @Optional.Get, @Optional(%tuple.type.784) [concrete]
@@ -486,15 +486,15 @@ fn Run() {
 // CHECK:STDOUT:   %ptr.b85: type = ptr_type %tuple.type.784 [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.specific_fn: <specific function> = specific_function %Optional.HasValue.4f9, @Optional.HasValue(%tuple.type.784) [concrete]
 // CHECK:STDOUT:   %Optional.Get.specific_fn: <specific function> = specific_function %Optional.Get.d99, @Optional.Get(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.973: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.149: %T.as.Destroy.impl.Op.type.973 = struct_value () [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.e36: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.060: %Optional.as.Destroy.impl.Op.type.e36 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.b14: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.76b: %T.as.Destroy.impl.Op.type.b14 = struct_value () [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.ba1: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.c7f: %Optional.as.Destroy.impl.Op.type.ba1 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.07d: type = ptr_type %Optional.79e [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.8b2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ca6: %T.as.Destroy.impl.Op.type.8b2 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.eb6: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%tuple.type.784) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.fb4: %EmptyRange.as.Destroy.impl.Op.type.eb6 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.be1: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.00c: %T.as.Destroy.impl.Op.type.be1 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.f55: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%tuple.type.784) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.9ef: %EmptyRange.as.Destroy.impl.Op.type.f55 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5cf: type = ptr_type %EmptyRange.2f3 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -503,9 +503,9 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.6ea: @EmptyRange.%EmptyRange.Make.type (%EmptyRange.Make.type.bd2) = import_ref Main//empty_range, loc5_21, loaded [symbolic = @EmptyRange.%EmptyRange.Make (constants.%EmptyRange.Make.ed1)]
 // CHECK:STDOUT:   %Main.import_ref.6ce = import_ref Main//empty_range, loc7_68, unloaded
 // CHECK:STDOUT:   %Main.import_ref.999 = import_ref Main//empty_range, loc7_68, unloaded
-// CHECK:STDOUT:   %Main.import_ref.57b: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.f5f) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.ec1)]
-// CHECK:STDOUT:   %Main.import_ref.170: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.264) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.08e)]
-// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.57b, %Main.import_ref.170), @EmptyRange.as.Iterate.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.694: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.edc) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.894)]
+// CHECK:STDOUT:   %Main.import_ref.9dd: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.dc6) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.c1f)]
+// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.694, %Main.import_ref.9dd), @EmptyRange.as.Iterate.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.7f9: @Optional.%Optional.HasValue.type (%Optional.HasValue.type.f81) = import_ref Main//empty_range, inst139 [indirect], loaded [symbolic = @Optional.%Optional.HasValue (constants.%Optional.HasValue.6fd)]
 // CHECK:STDOUT:   %Main.import_ref.d10: @Optional.%Optional.Get.type (%Optional.Get.type.b8f) = import_ref Main//empty_range, inst140 [indirect], loaded [symbolic = @Optional.%Optional.Get (constants.%Optional.Get.9c8)]
 // CHECK:STDOUT: }
@@ -533,7 +533,7 @@ fn Run() {
 // CHECK:STDOUT:   %.loc10_60.1: ref %EmptyRange.2f3 = temporary_storage
 // CHECK:STDOUT:   %EmptyRange.Make.call: init %EmptyRange.2f3 = call %EmptyRange.Make.specific_fn() to %.loc10_60.1
 // CHECK:STDOUT:   %.loc10_60.2: ref %EmptyRange.2f3 = temporary %.loc10_60.1, %EmptyRange.Make.call
-// CHECK:STDOUT:   %impl.elem2: %.2bf = impl_witness_access constants.%Iterate.impl_witness.6db, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.763]
+// CHECK:STDOUT:   %impl.elem2: %.85a = impl_witness_access constants.%Iterate.impl_witness.eee, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.50d]
 // CHECK:STDOUT:   %bound_method.loc10_61.1: <bound method> = bound_method %.loc10_60.2, %impl.elem2
 // CHECK:STDOUT:   %specific_fn.loc10_61.1: <specific function> = specific_function %impl.elem2, @EmptyRange.as.Iterate.impl.NewCursor(constants.%tuple.type.784) [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc10_61.2: <bound method> = bound_method %.loc10_60.2, %specific_fn.loc10_61.1
@@ -545,7 +545,7 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.next:
 // CHECK:STDOUT:   %addr.loc10_61.1: %ptr.c28 = addr_of %var
-// CHECK:STDOUT:   %impl.elem3: %.6aa = impl_witness_access constants.%Iterate.impl_witness.6db, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.e60]
+// CHECK:STDOUT:   %impl.elem3: %.5c2 = impl_witness_access constants.%Iterate.impl_witness.eee, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.191]
 // CHECK:STDOUT:   %bound_method.loc10_61.3: <bound method> = bound_method %.loc10_60.2, %impl.elem3
 // CHECK:STDOUT:   %specific_fn.loc10_61.2: <specific function> = specific_function %impl.elem3, @EmptyRange.as.Iterate.impl.Next(constants.%tuple.type.784) [concrete = constants.%EmptyRange.as.Iterate.impl.Next.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc10_61.4: <bound method> = bound_method %.loc10_60.2, %specific_fn.loc10_61.2
@@ -597,22 +597,22 @@ fn Run() {
 // CHECK:STDOUT:   br !for.next
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.done:
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_61.1: <bound method> = bound_method %.loc10_61.10, constants.%T.as.Destroy.impl.Op.149
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_61.1: <bound method> = bound_method %.loc10_61.10, constants.%T.as.Destroy.impl.Op.76b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_61.7: <bound method> = bound_method %.loc10_61.10, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10_61.2: %ptr.b85 = addr_of %.loc10_61.10
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10_61.1: init %empty_tuple.type = call %bound_method.loc10_61.7(%addr.loc10_61.2)
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_61.2, constants.%Optional.as.Destroy.impl.Op.060
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_61.2, constants.%Optional.as.Destroy.impl.Op.c7f
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_61.8: <bound method> = bound_method %.loc10_61.2, %Optional.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc10_61.3: %ptr.07d = addr_of %.loc10_61.2
 // CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc10_61.8(%addr.loc10_61.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_61.2: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.ca6
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_61.2: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.00c
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_61.9: <bound method> = bound_method %var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc10_61.4: %ptr.c28 = addr_of %var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10_61.2: init %empty_tuple.type = call %bound_method.loc10_61.9(%addr.loc10_61.4)
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_60.2, constants.%EmptyRange.as.Destroy.impl.Op.fb4
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_60.2, constants.%EmptyRange.as.Destroy.impl.Op.9ef
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_60: <bound method> = bound_method %.loc10_60.2, %EmptyRange.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc10_60: %ptr.5cf = addr_of %.loc10_60.2
@@ -644,42 +644,42 @@ fn Run() {
 // CHECK:STDOUT:   %EmptyRange.Make.specific_fn: <specific function> = specific_function %EmptyRange.Make.d4f, @EmptyRange.Make(%tuple.type.56b) [concrete]
 // CHECK:STDOUT:   %Iterate.type: type = facet_type <@Iterate> [concrete]
 // CHECK:STDOUT:   %Iterate.NewCursor.type: type = fn_type @Iterate.NewCursor [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.f5f: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.ec1: %EmptyRange.as.Iterate.impl.NewCursor.type.f5f = struct_value () [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.264: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.08e: %EmptyRange.as.Iterate.impl.Next.type.264 = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.edc: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.894: %EmptyRange.as.Iterate.impl.NewCursor.type.edc = struct_value () [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.dc6: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%T) [symbolic]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.c1f: %EmptyRange.as.Iterate.impl.Next.type.dc6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.type.f81: type = fn_type @Optional.HasValue, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.HasValue.6fd: %Optional.HasValue.type.f81 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Optional.Get.type.b8f: type = fn_type @Optional.Get, @Optional(%T) [symbolic]
 // CHECK:STDOUT:   %Optional.Get.9c8: %Optional.Get.type.b8f = struct_value () [symbolic]
-// CHECK:STDOUT:   %Iterate.impl_witness.627: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.59c: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.263: %EmptyRange.as.Iterate.impl.NewCursor.type.59c = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.70f: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.852: %EmptyRange.as.Iterate.impl.Next.type.70f = struct_value () [concrete]
-// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.90a, (%Iterate.impl_witness.627) [concrete]
-// CHECK:STDOUT:   %.8bd: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.263, @EmptyRange.as.Iterate.impl.NewCursor(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %Iterate.impl_witness.a53: <witness> = impl_witness imports.%Iterate.impl_witness_table, @EmptyRange.as.Iterate.impl(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.type.72d: type = fn_type @EmptyRange.as.Iterate.impl.NewCursor, @EmptyRange.as.Iterate.impl(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.390: %EmptyRange.as.Iterate.impl.NewCursor.type.72d = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.type.6b8: type = fn_type @EmptyRange.as.Iterate.impl.Next, @EmptyRange.as.Iterate.impl(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.385: %EmptyRange.as.Iterate.impl.Next.type.6b8 = struct_value () [concrete]
+// CHECK:STDOUT:   %Iterate.facet: %Iterate.type = facet_value %EmptyRange.90a, (%Iterate.impl_witness.a53) [concrete]
+// CHECK:STDOUT:   %.ec0: type = fn_type_with_self_type %Iterate.NewCursor.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.NewCursor.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.NewCursor.390, @EmptyRange.as.Iterate.impl.NewCursor(%tuple.type.56b) [concrete]
 // CHECK:STDOUT:   %Iterate.Next.type: type = fn_type @Iterate.Next [concrete]
-// CHECK:STDOUT:   %.8d0: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
+// CHECK:STDOUT:   %.2ad: type = fn_type_with_self_type %Iterate.Next.type, %Iterate.facet [concrete]
 // CHECK:STDOUT:   %Optional.657: type = class_type @Optional, @Optional(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.852, @EmptyRange.as.Iterate.impl.Next(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Iterate.impl.Next.specific_fn: <specific function> = specific_function %EmptyRange.as.Iterate.impl.Next.385, @EmptyRange.as.Iterate.impl.Next(%tuple.type.56b) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.type.2f1: type = fn_type @Optional.HasValue, @Optional(%tuple.type.56b) [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.bef: %Optional.HasValue.type.2f1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.Get.type.4a4: type = fn_type @Optional.Get, @Optional(%tuple.type.56b) [concrete]
 // CHECK:STDOUT:   %Optional.Get.8a7: %Optional.Get.type.4a4 = struct_value () [concrete]
 // CHECK:STDOUT:   %Optional.HasValue.specific_fn: <specific function> = specific_function %Optional.HasValue.bef, @Optional.HasValue(%tuple.type.56b) [concrete]
 // CHECK:STDOUT:   %Optional.Get.specific_fn: <specific function> = specific_function %Optional.Get.8a7, @Optional.Get(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.12e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.34b: %T.as.Destroy.impl.Op.type.12e = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ee9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.de5: %T.as.Destroy.impl.Op.type.ee9 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.9f0: type = ptr_type %tuple.type.56b [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.e58: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.7d3: %Optional.as.Destroy.impl.Op.type.e58 = struct_value () [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.type.a8c: type = fn_type @Optional.as.Destroy.impl.Op, @Optional.as.Destroy.impl(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.23b: %Optional.as.Destroy.impl.Op.type.a8c = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.036: type = ptr_type %Optional.657 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.310: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%tuple.type.56b) [concrete]
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.e9a: %EmptyRange.as.Destroy.impl.Op.type.310 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.type.89c: type = fn_type @EmptyRange.as.Destroy.impl.Op, @EmptyRange.as.Destroy.impl(%tuple.type.56b) [concrete]
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.67e: %EmptyRange.as.Destroy.impl.Op.type.89c = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.f9b: type = ptr_type %EmptyRange.90a [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -688,9 +688,9 @@ fn Run() {
 // CHECK:STDOUT:   %Main.import_ref.6ea: @EmptyRange.%EmptyRange.Make.type (%EmptyRange.Make.type.bd2) = import_ref Main//empty_range, loc5_21, loaded [symbolic = @EmptyRange.%EmptyRange.Make (constants.%EmptyRange.Make.ed1)]
 // CHECK:STDOUT:   %Main.import_ref.6ce = import_ref Main//empty_range, loc7_68, unloaded
 // CHECK:STDOUT:   %Main.import_ref.999 = import_ref Main//empty_range, loc7_68, unloaded
-// CHECK:STDOUT:   %Main.import_ref.57b: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.f5f) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.ec1)]
-// CHECK:STDOUT:   %Main.import_ref.170: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.264) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.08e)]
-// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.57b, %Main.import_ref.170), @EmptyRange.as.Iterate.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.694: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor.type (%EmptyRange.as.Iterate.impl.NewCursor.type.edc) = import_ref Main//empty_range, loc8_38, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.NewCursor (constants.%EmptyRange.as.Iterate.impl.NewCursor.894)]
+// CHECK:STDOUT:   %Main.import_ref.9dd: @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next.type (%EmptyRange.as.Iterate.impl.Next.type.dc6) = import_ref Main//empty_range, loc11_58, loaded [symbolic = @EmptyRange.as.Iterate.impl.%EmptyRange.as.Iterate.impl.Next (constants.%EmptyRange.as.Iterate.impl.Next.c1f)]
+// CHECK:STDOUT:   %Iterate.impl_witness_table = impl_witness_table (%Main.import_ref.6ce, %Main.import_ref.999, %Main.import_ref.694, %Main.import_ref.9dd), @EmptyRange.as.Iterate.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.7f9: @Optional.%Optional.HasValue.type (%Optional.HasValue.type.f81) = import_ref Main//empty_range, inst139 [indirect], loaded [symbolic = @Optional.%Optional.HasValue (constants.%Optional.HasValue.6fd)]
 // CHECK:STDOUT:   %Main.import_ref.d10: @Optional.%Optional.Get.type (%Optional.Get.type.b8f) = import_ref Main//empty_range, inst140 [indirect], loaded [symbolic = @Optional.%Optional.Get (constants.%Optional.Get.9c8)]
 // CHECK:STDOUT: }
@@ -714,7 +714,7 @@ fn Run() {
 // CHECK:STDOUT:   %.loc12_48.1: ref %EmptyRange.90a = temporary_storage
 // CHECK:STDOUT:   %EmptyRange.Make.call: init %EmptyRange.90a = call %EmptyRange.Make.specific_fn() to %.loc12_48.1
 // CHECK:STDOUT:   %.loc12_48.2: ref %EmptyRange.90a = temporary %.loc12_48.1, %EmptyRange.Make.call
-// CHECK:STDOUT:   %impl.elem2: %.8bd = impl_witness_access constants.%Iterate.impl_witness.627, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.263]
+// CHECK:STDOUT:   %impl.elem2: %.ec0 = impl_witness_access constants.%Iterate.impl_witness.a53, element2 [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.390]
 // CHECK:STDOUT:   %bound_method.loc12_49.1: <bound method> = bound_method %.loc12_48.2, %impl.elem2
 // CHECK:STDOUT:   %specific_fn.loc12_49.1: <specific function> = specific_function %impl.elem2, @EmptyRange.as.Iterate.impl.NewCursor(constants.%tuple.type.56b) [concrete = constants.%EmptyRange.as.Iterate.impl.NewCursor.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_49.2: <bound method> = bound_method %.loc12_48.2, %specific_fn.loc12_49.1
@@ -726,7 +726,7 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.next:
 // CHECK:STDOUT:   %addr.loc12_49.1: %ptr.c28 = addr_of %var
-// CHECK:STDOUT:   %impl.elem3: %.8d0 = impl_witness_access constants.%Iterate.impl_witness.627, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.852]
+// CHECK:STDOUT:   %impl.elem3: %.2ad = impl_witness_access constants.%Iterate.impl_witness.a53, element3 [concrete = constants.%EmptyRange.as.Iterate.impl.Next.385]
 // CHECK:STDOUT:   %bound_method.loc12_49.3: <bound method> = bound_method %.loc12_48.2, %impl.elem3
 // CHECK:STDOUT:   %specific_fn.loc12_49.2: <specific function> = specific_function %impl.elem3, @EmptyRange.as.Iterate.impl.Next(constants.%tuple.type.56b) [concrete = constants.%EmptyRange.as.Iterate.impl.Next.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_49.4: <bound method> = bound_method %.loc12_48.2, %specific_fn.loc12_49.2
@@ -770,22 +770,22 @@ fn Run() {
 // CHECK:STDOUT:   br !for.next
 // CHECK:STDOUT:
 // CHECK:STDOUT: !for.done:
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12_49.1: <bound method> = bound_method %.loc12_49.10, constants.%T.as.Destroy.impl.Op.34b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12_49.1: <bound method> = bound_method %.loc12_49.10, constants.%T.as.Destroy.impl.Op.de5
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_49.7: <bound method> = bound_method %.loc12_49.10, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc12_49.2: %ptr.9f0 = addr_of %.loc12_49.10
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc12_49.1: init %empty_tuple.type = call %bound_method.loc12_49.7(%addr.loc12_49.2)
-// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_49.2, constants.%Optional.as.Destroy.impl.Op.7d3
+// CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_49.2, constants.%Optional.as.Destroy.impl.Op.23b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_49.8: <bound method> = bound_method %.loc12_49.2, %Optional.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_49.3: %ptr.036 = addr_of %.loc12_49.2
 // CHECK:STDOUT:   %Optional.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc12_49.8(%addr.loc12_49.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12_49.2: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.d5a
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12_49.2: <bound method> = bound_method %var, constants.%T.as.Destroy.impl.Op.24b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_49.9: <bound method> = bound_method %var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc12_49.4: %ptr.c28 = addr_of %var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc12_49.2: init %empty_tuple.type = call %bound_method.loc12_49.9(%addr.loc12_49.4)
-// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_48.2, constants.%EmptyRange.as.Destroy.impl.Op.e9a
+// CHECK:STDOUT:   %EmptyRange.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_48.2, constants.%EmptyRange.as.Destroy.impl.Op.67e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12_48: <bound method> = bound_method %.loc12_48.2, %EmptyRange.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc12_48: %ptr.f9b = addr_of %.loc12_48.2
diff --git a/toolchain/check/testdata/function/builtin/call.carbon b/toolchain/check/testdata/function/builtin/call.carbon
index 3e573ee0561e..897fa3fe4b58 100644
--- a/toolchain/check/testdata/function/builtin/call.carbon
+++ b/toolchain/check/testdata/function/builtin/call.carbon
@@ -34,37 +34,37 @@ fn RuntimeCall(a: i32, b: i32) -> i32 {
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.f49: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.f49 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.c6f: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.4d7: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.4d7 [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.7ed: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %array_type: type = array_type %int_3.1ba, %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.5d8: type = pattern_type %array_type [concrete]
@@ -81,10 +81,10 @@ fn RuntimeCall(a: i32, b: i32) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -131,25 +131,25 @@ fn RuntimeCall(a: i32, b: i32) -> i32 {
 // CHECK:STDOUT:     %Add.ref: %Add.type = name_ref Add, %Add.decl [concrete = constants.%Add]
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem0.loc17_25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc17_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc17_25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:     %impl.elem0.loc17_25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc17_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc17_25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:     %specific_fn.loc17_25: <specific function> = specific_function %impl.elem0.loc17_25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc17_25.2: <bound method> = bound_method %int_1, %specific_fn.loc17_25 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:     %bound_method.loc17_25.2: <bound method> = bound_method %int_1, %specific_fn.loc17_25 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_25: init %i32 = call %bound_method.loc17_25.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc17_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_25 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc17_25.2: %i32 = converted %int_1, %.loc17_25.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:     %impl.elem0.loc17_28: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc17_28.1: <bound method> = bound_method %int_2, %impl.elem0.loc17_28 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:     %impl.elem0.loc17_28: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc17_28.1: <bound method> = bound_method %int_2, %impl.elem0.loc17_28 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:     %specific_fn.loc17_28: <specific function> = specific_function %impl.elem0.loc17_28, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc17_28.2: <bound method> = bound_method %int_2, %specific_fn.loc17_28 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc17_28.2: <bound method> = bound_method %int_2, %specific_fn.loc17_28 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_28: init %i32 = call %bound_method.loc17_28.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc17_28.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_28 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc17_28.2: %i32 = converted %int_2, %.loc17_28.1 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %Add.call: init %i32 = call %Add.ref(%.loc17_25.2, %.loc17_28.2) [concrete = constants.%int_3.822]
-// CHECK:STDOUT:     %impl.elem0.loc17_29: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
+// CHECK:STDOUT:     %impl.elem0.loc17_29: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
 // CHECK:STDOUT:     %bound_method.loc17_29.1: <bound method> = bound_method %Add.call, %impl.elem0.loc17_29 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn.loc17_29: <specific function> = specific_function %impl.elem0.loc17_29, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc17_29.2: <bound method> = bound_method %Add.call, %specific_fn.loc17_29 [concrete = constants.%bound_method.c6f]
+// CHECK:STDOUT:     %bound_method.loc17_29.2: <bound method> = bound_method %Add.call, %specific_fn.loc17_29 [concrete = constants.%bound_method.7ed]
 // CHECK:STDOUT:     %.loc17_29.1: %i32 = value_of_initializer %Add.call [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %.loc17_29.2: %i32 = converted %Add.call, %.loc17_29.1 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.loc17_29.2(%.loc17_29.2) [concrete = constants.%int_3.1ba]
diff --git a/toolchain/check/testdata/function/builtin/call_from_operator.carbon b/toolchain/check/testdata/function/builtin/call_from_operator.carbon
index a29432c51d83..2221a4f89a78 100644
--- a/toolchain/check/testdata/function/builtin/call_from_operator.carbon
+++ b/toolchain/check/testdata/function/builtin/call_from_operator.carbon
@@ -59,27 +59,27 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %IntLiteral.type: type = fn_type @IntLiteral [concrete]
 // CHECK:STDOUT:   %IntLiteral: %IntLiteral.type = struct_value () [concrete]
-// CHECK:STDOUT:   %pattern_type.dc0: type = pattern_type Core.IntLiteral [concrete]
+// CHECK:STDOUT:   %pattern_type.dc06: type = pattern_type Core.IntLiteral [concrete]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [concrete]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %AddWith.type.b35: type = generic_interface_type @AddWith [concrete]
 // CHECK:STDOUT:   %AddWith.generic: %AddWith.type.b35 = struct_value () [concrete]
-// CHECK:STDOUT:   %AddWith.type.bc7: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.deb: %AddWith.type.bc7 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.6cc: type = facet_access_type %Self.deb [symbolic]
-// CHECK:STDOUT:   %pattern_type.4a8: type = pattern_type %Self.as_type.6cc [symbolic]
+// CHECK:STDOUT:   %AddWith.type.f2c: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.46b: %AddWith.type.f2c = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.a7a: type = facet_access_type %Self.46b [symbolic]
+// CHECK:STDOUT:   %pattern_type.3ac: type = pattern_type %Self.as_type.a7a [symbolic]
 // CHECK:STDOUT:   %AddWith.Op.type.5b7: type = fn_type @AddWith.Op, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %AddWith.Op.037: %AddWith.Op.type.5b7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %AddWith.assoc_type.36e: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.adf: %AddWith.assoc_type.36e = assoc_entity element0, @AddWith.%AddWith.Op.decl [symbolic]
 // CHECK:STDOUT:   %As.type.b51: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.b51 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.8ba: type = facet_type <@As, @As(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.b4e: %As.type.8ba = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.7f0: type = facet_access_type %Self.b4e [symbolic]
-// CHECK:STDOUT:   %pattern_type.947: type = pattern_type %Self.as_type.7f0 [symbolic]
+// CHECK:STDOUT:   %As.type.d46: type = facet_type <@As, @As(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.b52: %As.type.d46 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.d59: type = facet_access_type %Self.b52 [symbolic]
+// CHECK:STDOUT:   %pattern_type.dc0b: type = pattern_type %Self.as_type.d59 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %As.Convert.type.ad1: type = fn_type @As.Convert, @As(%T) [symbolic]
 // CHECK:STDOUT:   %As.Convert.0ed: %As.Convert.type.ad1 = struct_value () [symbolic]
@@ -87,18 +87,18 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %assoc0.1d5: %As.assoc_type.a21 = assoc_entity element0, @As.%As.Convert.decl [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.96f: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.96f = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.07f: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.0f3: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.419: type = facet_access_type %Self.0f3 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a93: type = pattern_type %Self.as_type.419 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.f40: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.545: %ImplicitAs.type.f40 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.692: type = facet_access_type %Self.545 [symbolic]
+// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Self.as_type.692 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.4cf: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.147: %ImplicitAs.Convert.type.4cf = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.095: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.8f8: %ImplicitAs.assoc_type.095 = assoc_entity element0, @ImplicitAs.%ImplicitAs.Convert.decl [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
-// CHECK:STDOUT:   %AddWith.type.49d: type = facet_type <@AddWith, @AddWith(%i32.builtin)> [concrete]
-// CHECK:STDOUT:   %Self.da9: %AddWith.type.49d = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %AddWith.type.dbb: type = facet_type <@AddWith, @AddWith(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %Self.1a8: %AddWith.type.dbb = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %AddWith.Op.type.efc: type = fn_type @AddWith.Op, @AddWith(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %AddWith.Op.a62: %AddWith.Op.type.efc = struct_value () [concrete]
 // CHECK:STDOUT:   %AddWith.assoc_type.a65: type = assoc_entity_type @AddWith, @AddWith(%i32.builtin) [concrete]
@@ -107,9 +107,9 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %pattern_type.956: type = pattern_type %i32.builtin [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.type: type = fn_type @i32.builtin.as.AddWith.impl.Op [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op: %i32.builtin.as.AddWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.49d = facet_value %i32.builtin, (%AddWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %As.type.a09: type = facet_type <@As, @As(%i32.builtin)> [concrete]
-// CHECK:STDOUT:   %Self.2fa: %As.type.a09 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.dbb = facet_value %i32.builtin, (%AddWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %As.type.846: type = facet_type <@As, @As(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %Self.a87: %As.type.846 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %As.Convert.type.c0d: type = fn_type @As.Convert, @As(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %As.Convert.713: %As.Convert.type.c0d = struct_value () [concrete]
 // CHECK:STDOUT:   %As.assoc_type.b9b: type = assoc_entity_type @As, @As(%i32.builtin) [concrete]
@@ -117,27 +117,27 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %As.impl_witness: <witness> = impl_witness file.%As.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type: type = fn_type @Core.IntLiteral.as.As.impl.Convert [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert: %Core.IntLiteral.as.As.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a09 = facet_value Core.IntLiteral, (%As.impl_witness) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.11a: type = facet_type <@ImplicitAs, @ImplicitAs(%i32.builtin)> [concrete]
-// CHECK:STDOUT:   %Self.e0a: %ImplicitAs.type.11a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %As.facet: %As.type.846 = facet_value Core.IntLiteral, (%As.impl_witness) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.996: type = facet_type <@ImplicitAs, @ImplicitAs(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %Self.100: %ImplicitAs.type.996 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.752: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.fcc: %ImplicitAs.Convert.type.752 = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.1cf: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %assoc0.3ce: %ImplicitAs.assoc_type.1cf = assoc_entity element0, @ImplicitAs.%ImplicitAs.Convert.decl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.be0: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc27 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.789: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc27 [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.bcb: %ImplicitAs.type.11a = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.be0) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9fc: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
-// CHECK:STDOUT:   %Self.37e: %ImplicitAs.type.9fc = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.facet.099: %ImplicitAs.type.996 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.789) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.ff1: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %Self.b66: %ImplicitAs.type.ff1 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.60e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.c73: %ImplicitAs.Convert.type.60e = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.014: type = assoc_entity_type @ImplicitAs, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %assoc0.757: %ImplicitAs.assoc_type.014 = assoc_entity element0, @ImplicitAs.%ImplicitAs.Convert.decl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.95b: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc31 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.a96: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc31 [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.ImplicitAs.impl.Convert.type: type = fn_type @i32.builtin.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.ImplicitAs.impl.Convert: %i32.builtin.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.a85: %ImplicitAs.type.9fc = facet_value %i32.builtin, (%ImplicitAs.impl_witness.95b) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.3e7: %ImplicitAs.type.ff1 = facet_value %i32.builtin, (%ImplicitAs.impl_witness.a96) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -156,8 +156,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %return: ref type = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Int.decl: %Int.type = fn_decl @Int [concrete = constants.%Int] {
-// CHECK:STDOUT:     %N.patt: %pattern_type.dc0 = binding_pattern N [concrete]
-// CHECK:STDOUT:     %N.param_patt: %pattern_type.dc0 = value_param_pattern %N.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %N.patt: %pattern_type.dc06 = binding_pattern N [concrete]
+// CHECK:STDOUT:     %N.param_patt: %pattern_type.dc06 = value_param_pattern %N.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.98f = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.98f = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
@@ -200,7 +200,7 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %Int.call.loc19_21: init type = call constants.%Int(%int_32.loc19_21) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc19_24.1: type = value_of_initializer %Int.call.loc19_21 [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc19_24.2: type = converted %Int.call.loc19_21, %.loc19_24.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:     %AddWith.type: type = facet_type <@AddWith, @AddWith(constants.%i32.builtin)> [concrete = constants.%AddWith.type.49d]
+// CHECK:STDOUT:     %AddWith.type: type = facet_type <@AddWith, @AddWith(constants.%i32.builtin)> [concrete = constants.%AddWith.type.dbb]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AddWith.impl_witness_table = impl_witness_table (@i32.builtin.as.AddWith.impl.%i32.builtin.as.AddWith.impl.Op.decl), @i32.builtin.as.AddWith.impl [concrete]
 // CHECK:STDOUT:   %AddWith.impl_witness: <witness> = impl_witness %AddWith.impl_witness_table [concrete = constants.%AddWith.impl_witness]
@@ -214,7 +214,7 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %Int.call: init type = call constants.%Int(%int_32) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc23_28.1: type = value_of_initializer %Int.call [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc23_28.2: type = converted %Int.call, %.loc23_28.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:     %As.type: type = facet_type <@As, @As(constants.%i32.builtin)> [concrete = constants.%As.type.a09]
+// CHECK:STDOUT:     %As.type: type = facet_type <@As, @As(constants.%i32.builtin)> [concrete = constants.%As.type.846]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (@Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.decl), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT:   %As.impl_witness: <witness> = impl_witness %As.impl_witness_table [concrete = constants.%As.impl_witness]
@@ -228,10 +228,10 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %Int.call: init type = call constants.%Int(%int_32) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc27_36.1: type = value_of_initializer %Int.call [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc27_36.2: type = converted %Int.call, %.loc27_36.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32.builtin)> [concrete = constants.%ImplicitAs.type.11a]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32.builtin)> [concrete = constants.%ImplicitAs.type.996]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc27 = impl_witness_table (@Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.decl), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc27: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc27 [concrete = constants.%ImplicitAs.impl_witness.be0]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc27: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc27 [concrete = constants.%ImplicitAs.impl_witness.789]
 // CHECK:STDOUT:   impl_decl @i32.builtin.as.ImplicitAs.impl [concrete] {} {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %Int.call: init type = call constants.%Int(%int_32) [concrete = constants.%i32.builtin]
@@ -242,55 +242,55 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %IntLiteral.call: init type = call %IntLiteral.ref() [concrete = Core.IntLiteral]
 // CHECK:STDOUT:     %.loc31_36.1: type = value_of_initializer %IntLiteral.call [concrete = Core.IntLiteral]
 // CHECK:STDOUT:     %.loc31_36.2: type = converted %IntLiteral.call, %.loc31_36.1 [concrete = Core.IntLiteral]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete = constants.%ImplicitAs.type.9fc]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete = constants.%ImplicitAs.type.ff1]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc31 = impl_witness_table (@i32.builtin.as.ImplicitAs.impl.%i32.builtin.as.ImplicitAs.impl.Convert.decl), @i32.builtin.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc31: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc31 [concrete = constants.%ImplicitAs.impl_witness.95b]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc31: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc31 [concrete = constants.%ImplicitAs.impl_witness.a96]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic interface @AddWith(%T.loc7_19.2: type) {
 // CHECK:STDOUT:   %T.loc7_19.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc7_19.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T.loc7_19.1)> [symbolic = %AddWith.type (constants.%AddWith.type.bc7)]
-// CHECK:STDOUT:   %Self.2: @AddWith.%AddWith.type (%AddWith.type.bc7) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.deb)]
+// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T.loc7_19.1)> [symbolic = %AddWith.type (constants.%AddWith.type.f2c)]
+// CHECK:STDOUT:   %Self.2: @AddWith.%AddWith.type (%AddWith.type.f2c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.46b)]
 // CHECK:STDOUT:   %AddWith.Op.type: type = fn_type @AddWith.Op, @AddWith(%T.loc7_19.1) [symbolic = %AddWith.Op.type (constants.%AddWith.Op.type.5b7)]
 // CHECK:STDOUT:   %AddWith.Op: @AddWith.%AddWith.Op.type (%AddWith.Op.type.5b7) = struct_value () [symbolic = %AddWith.Op (constants.%AddWith.Op.037)]
 // CHECK:STDOUT:   %AddWith.assoc_type: type = assoc_entity_type @AddWith, @AddWith(%T.loc7_19.1) [symbolic = %AddWith.assoc_type (constants.%AddWith.assoc_type.36e)]
 // CHECK:STDOUT:   %assoc0.loc8_41.2: @AddWith.%AddWith.assoc_type (%AddWith.assoc_type.36e) = assoc_entity element0, %AddWith.Op.decl [symbolic = %assoc0.loc8_41.2 (constants.%assoc0.adf)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @AddWith.%AddWith.type (%AddWith.type.bc7) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.deb)]
+// CHECK:STDOUT:     %Self.1: @AddWith.%AddWith.type (%AddWith.type.f2c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.46b)]
 // CHECK:STDOUT:     %AddWith.Op.decl: @AddWith.%AddWith.Op.type (%AddWith.Op.type.5b7) = fn_decl @AddWith.Op [symbolic = @AddWith.%AddWith.Op (constants.%AddWith.Op.037)] {
-// CHECK:STDOUT:       %self.patt: @AddWith.Op.%pattern_type (%pattern_type.4a8) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @AddWith.Op.%pattern_type (%pattern_type.4a8) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:       %other.patt: @AddWith.Op.%pattern_type (%pattern_type.4a8) = binding_pattern other [concrete]
-// CHECK:STDOUT:       %other.param_patt: @AddWith.Op.%pattern_type (%pattern_type.4a8) = value_param_pattern %other.patt, call_param1 [concrete]
-// CHECK:STDOUT:       %return.patt: @AddWith.Op.%pattern_type (%pattern_type.4a8) = return_slot_pattern [concrete]
-// CHECK:STDOUT:       %return.param_patt: @AddWith.Op.%pattern_type (%pattern_type.4a8) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:       %self.patt: @AddWith.Op.%pattern_type (%pattern_type.3ac) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @AddWith.Op.%pattern_type (%pattern_type.3ac) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %other.patt: @AddWith.Op.%pattern_type (%pattern_type.3ac) = binding_pattern other [concrete]
+// CHECK:STDOUT:       %other.param_patt: @AddWith.Op.%pattern_type (%pattern_type.3ac) = value_param_pattern %other.patt, call_param1 [concrete]
+// CHECK:STDOUT:       %return.patt: @AddWith.Op.%pattern_type (%pattern_type.3ac) = return_slot_pattern [concrete]
+// CHECK:STDOUT:       %return.param_patt: @AddWith.Op.%pattern_type (%pattern_type.3ac) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %.loc8_37.1: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = specific_constant @AddWith.%Self.1, @AddWith(constants.%T) [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:       %Self.ref.loc8_37: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = name_ref Self, %.loc8_37.1 [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:       %Self.as_type.loc8_37: type = facet_access_type %Self.ref.loc8_37 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
-// CHECK:STDOUT:       %.loc8_37.2: type = converted %Self.ref.loc8_37, %Self.as_type.loc8_37 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
-// CHECK:STDOUT:       %self.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc) = value_param call_param0
-// CHECK:STDOUT:       %.loc8_15.1: type = splice_block %.loc8_15.3 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)] {
-// CHECK:STDOUT:         %.loc8_15.2: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = specific_constant @AddWith.%Self.1, @AddWith(constants.%T) [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:         %Self.ref.loc8_15: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = name_ref Self, %.loc8_15.2 [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:         %Self.as_type.loc8_15.2: type = facet_access_type %Self.ref.loc8_15 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
-// CHECK:STDOUT:         %.loc8_15.3: type = converted %Self.ref.loc8_15, %Self.as_type.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
+// CHECK:STDOUT:       %.loc8_37.1: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = specific_constant @AddWith.%Self.1, @AddWith(constants.%T) [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:       %Self.ref.loc8_37: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = name_ref Self, %.loc8_37.1 [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:       %Self.as_type.loc8_37: type = facet_access_type %Self.ref.loc8_37 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
+// CHECK:STDOUT:       %.loc8_37.2: type = converted %Self.ref.loc8_37, %Self.as_type.loc8_37 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
+// CHECK:STDOUT:       %self.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a) = value_param call_param0
+// CHECK:STDOUT:       %.loc8_15.1: type = splice_block %.loc8_15.3 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)] {
+// CHECK:STDOUT:         %.loc8_15.2: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = specific_constant @AddWith.%Self.1, @AddWith(constants.%T) [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:         %Self.ref.loc8_15: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = name_ref Self, %.loc8_15.2 [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:         %Self.as_type.loc8_15.2: type = facet_access_type %Self.ref.loc8_15 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
+// CHECK:STDOUT:         %.loc8_15.3: type = converted %Self.ref.loc8_15, %Self.as_type.loc8_15.2 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc) = bind_name self, %self.param
-// CHECK:STDOUT:       %other.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc) = value_param call_param1
-// CHECK:STDOUT:       %.loc8_28.1: type = splice_block %.loc8_28.3 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)] {
-// CHECK:STDOUT:         %.loc8_28.2: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = specific_constant @AddWith.%Self.1, @AddWith(constants.%T) [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:         %Self.ref.loc8_28: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = name_ref Self, %.loc8_28.2 [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:         %Self.as_type.loc8_28: type = facet_access_type %Self.ref.loc8_28 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
-// CHECK:STDOUT:         %.loc8_28.3: type = converted %Self.ref.loc8_28, %Self.as_type.loc8_28 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
+// CHECK:STDOUT:       %self: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a) = bind_name self, %self.param
+// CHECK:STDOUT:       %other.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a) = value_param call_param1
+// CHECK:STDOUT:       %.loc8_28.1: type = splice_block %.loc8_28.3 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)] {
+// CHECK:STDOUT:         %.loc8_28.2: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = specific_constant @AddWith.%Self.1, @AddWith(constants.%T) [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:         %Self.ref.loc8_28: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = name_ref Self, %.loc8_28.2 [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:         %Self.as_type.loc8_28: type = facet_access_type %Self.ref.loc8_28 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
+// CHECK:STDOUT:         %.loc8_28.3: type = converted %Self.ref.loc8_28, %Self.as_type.loc8_28 [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %other: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc) = bind_name other, %other.param
-// CHECK:STDOUT:       %return.param: ref @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc) = out_param call_param2
-// CHECK:STDOUT:       %return: ref @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc) = return_slot %return.param
+// CHECK:STDOUT:       %other: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a) = bind_name other, %other.param
+// CHECK:STDOUT:       %return.param: ref @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a) = out_param call_param2
+// CHECK:STDOUT:       %return: ref @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a) = return_slot %return.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %assoc0.loc8_41.1: @AddWith.%AddWith.assoc_type (%AddWith.assoc_type.36e) = assoc_entity element0, %AddWith.Op.decl [symbolic = %assoc0.loc8_41.2 (constants.%assoc0.adf)]
 // CHECK:STDOUT:
@@ -305,30 +305,30 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc11_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_14.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T.loc11_14.1)> [symbolic = %As.type (constants.%As.type.8ba)]
-// CHECK:STDOUT:   %Self.2: @As.%As.type (%As.type.8ba) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b4e)]
+// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T.loc11_14.1)> [symbolic = %As.type (constants.%As.type.d46)]
+// CHECK:STDOUT:   %Self.2: @As.%As.type (%As.type.d46) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b52)]
 // CHECK:STDOUT:   %As.Convert.type: type = fn_type @As.Convert, @As(%T.loc11_14.1) [symbolic = %As.Convert.type (constants.%As.Convert.type.ad1)]
 // CHECK:STDOUT:   %As.Convert: @As.%As.Convert.type (%As.Convert.type.ad1) = struct_value () [symbolic = %As.Convert (constants.%As.Convert.0ed)]
 // CHECK:STDOUT:   %As.assoc_type: type = assoc_entity_type @As, @As(%T.loc11_14.1) [symbolic = %As.assoc_type (constants.%As.assoc_type.a21)]
 // CHECK:STDOUT:   %assoc0.loc12_32.2: @As.%As.assoc_type (%As.assoc_type.a21) = assoc_entity element0, %As.Convert.decl [symbolic = %assoc0.loc12_32.2 (constants.%assoc0.1d5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @As.%As.type (%As.type.8ba) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b4e)]
+// CHECK:STDOUT:     %Self.1: @As.%As.type (%As.type.d46) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b52)]
 // CHECK:STDOUT:     %As.Convert.decl: @As.%As.Convert.type (%As.Convert.type.ad1) = fn_decl @As.Convert [symbolic = @As.%As.Convert (constants.%As.Convert.0ed)] {
-// CHECK:STDOUT:       %self.patt: @As.Convert.%pattern_type.loc12_14 (%pattern_type.947) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @As.Convert.%pattern_type.loc12_14 (%pattern_type.947) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @As.Convert.%pattern_type.loc12_14 (%pattern_type.dc0b) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @As.Convert.%pattern_type.loc12_14 (%pattern_type.dc0b) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @As.Convert.%pattern_type.loc12_28 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @As.Convert.%pattern_type.loc12_28 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @As.%T.loc11_14.2 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self.param: @As.Convert.%Self.as_type.loc12_20.1 (%Self.as_type.7f0) = value_param call_param0
-// CHECK:STDOUT:       %.loc12_20.1: type = splice_block %.loc12_20.3 [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.7f0)] {
-// CHECK:STDOUT:         %.loc12_20.2: @As.Convert.%As.type (%As.type.8ba) = specific_constant @As.%Self.1, @As(constants.%T) [symbolic = %Self (constants.%Self.b4e)]
-// CHECK:STDOUT:         %Self.ref: @As.Convert.%As.type (%As.type.8ba) = name_ref Self, %.loc12_20.2 [symbolic = %Self (constants.%Self.b4e)]
-// CHECK:STDOUT:         %Self.as_type.loc12_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.7f0)]
-// CHECK:STDOUT:         %.loc12_20.3: type = converted %Self.ref, %Self.as_type.loc12_20.2 [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.7f0)]
+// CHECK:STDOUT:       %self.param: @As.Convert.%Self.as_type.loc12_20.1 (%Self.as_type.d59) = value_param call_param0
+// CHECK:STDOUT:       %.loc12_20.1: type = splice_block %.loc12_20.3 [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.d59)] {
+// CHECK:STDOUT:         %.loc12_20.2: @As.Convert.%As.type (%As.type.d46) = specific_constant @As.%Self.1, @As(constants.%T) [symbolic = %Self (constants.%Self.b52)]
+// CHECK:STDOUT:         %Self.ref: @As.Convert.%As.type (%As.type.d46) = name_ref Self, %.loc12_20.2 [symbolic = %Self (constants.%Self.b52)]
+// CHECK:STDOUT:         %Self.as_type.loc12_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.d59)]
+// CHECK:STDOUT:         %.loc12_20.3: type = converted %Self.ref, %Self.as_type.loc12_20.2 [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.d59)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @As.Convert.%Self.as_type.loc12_20.1 (%Self.as_type.7f0) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @As.Convert.%Self.as_type.loc12_20.1 (%Self.as_type.d59) = bind_name self, %self.param
 // CHECK:STDOUT:       %return.param: ref @As.Convert.%T (%T) = out_param call_param1
 // CHECK:STDOUT:       %return: ref @As.Convert.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
@@ -346,30 +346,30 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc15_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_22.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T.loc15_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f3)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T.loc15_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.545)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%T.loc15_22.1) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type.4cf)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.4cf) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert.147)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%T.loc15_22.1) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.095)]
 // CHECK:STDOUT:   %assoc0.loc16_32.2: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.095) = assoc_entity element0, %ImplicitAs.Convert.decl [symbolic = %assoc0.loc16_32.2 (constants.%assoc0.8f8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f3)]
+// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.545)]
 // CHECK:STDOUT:     %ImplicitAs.Convert.decl: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.4cf) = fn_decl @ImplicitAs.Convert [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert.147)] {
-// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc16_14 (%pattern_type.a93) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc16_14 (%pattern_type.a93) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc16_14 (%pattern_type.fb9) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc16_14 (%pattern_type.fb9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @ImplicitAs.Convert.%pattern_type.loc16_28 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @ImplicitAs.Convert.%pattern_type.loc16_28 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @ImplicitAs.%T.loc15_22.2 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self.param: @ImplicitAs.Convert.%Self.as_type.loc16_20.1 (%Self.as_type.419) = value_param call_param0
-// CHECK:STDOUT:       %.loc16_20.1: type = splice_block %.loc16_20.3 [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.419)] {
-// CHECK:STDOUT:         %.loc16_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%T) [symbolic = %Self (constants.%Self.0f3)]
-// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = name_ref Self, %.loc16_20.2 [symbolic = %Self (constants.%Self.0f3)]
-// CHECK:STDOUT:         %Self.as_type.loc16_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.419)]
-// CHECK:STDOUT:         %.loc16_20.3: type = converted %Self.ref, %Self.as_type.loc16_20.2 [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.419)]
+// CHECK:STDOUT:       %self.param: @ImplicitAs.Convert.%Self.as_type.loc16_20.1 (%Self.as_type.692) = value_param call_param0
+// CHECK:STDOUT:       %.loc16_20.1: type = splice_block %.loc16_20.3 [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.692)] {
+// CHECK:STDOUT:         %.loc16_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%T) [symbolic = %Self (constants.%Self.545)]
+// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = name_ref Self, %.loc16_20.2 [symbolic = %Self (constants.%Self.545)]
+// CHECK:STDOUT:         %Self.as_type.loc16_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.692)]
+// CHECK:STDOUT:         %.loc16_20.3: type = converted %Self.ref, %Self.as_type.loc16_20.2 [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.692)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @ImplicitAs.Convert.%Self.as_type.loc16_20.1 (%Self.as_type.419) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @ImplicitAs.Convert.%Self.as_type.loc16_20.1 (%Self.as_type.692) = bind_name self, %self.param
 // CHECK:STDOUT:       %return.param: ref @ImplicitAs.Convert.%T (%T) = out_param call_param1
 // CHECK:STDOUT:       %return: ref @ImplicitAs.Convert.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
@@ -410,8 +410,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @Core.IntLiteral.as.As.impl: %.loc23_17.2 as %As.type {
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.decl: %Core.IntLiteral.as.As.impl.Convert.type = fn_decl @Core.IntLiteral.as.As.impl.Convert [concrete = constants.%Core.IntLiteral.as.As.impl.Convert] {
-// CHECK:STDOUT:     %self.patt: %pattern_type.dc0 = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: %pattern_type.dc0 = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: %pattern_type.dc06 = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: %pattern_type.dc06 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.956 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.956 = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
@@ -433,8 +433,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @Core.IntLiteral.as.ImplicitAs.impl: %.loc27_17.2 as %ImplicitAs.type {
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.decl: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type = fn_decl @Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert] {
-// CHECK:STDOUT:     %self.patt: %pattern_type.dc0 = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: %pattern_type.dc0 = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: %pattern_type.dc06 = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: %pattern_type.dc06 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.956 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.956 = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
@@ -458,8 +458,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %i32.builtin.as.ImplicitAs.impl.Convert.decl: %i32.builtin.as.ImplicitAs.impl.Convert.type = fn_decl @i32.builtin.as.ImplicitAs.impl.Convert [concrete = constants.%i32.builtin.as.ImplicitAs.impl.Convert] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.956 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.956 = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: %pattern_type.dc0 = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: %pattern_type.dc0 = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: %pattern_type.dc06 = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: %pattern_type.dc06 = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %IntLiteral.ref: %IntLiteral.type = name_ref IntLiteral, file.%IntLiteral.decl [concrete = constants.%IntLiteral]
 // CHECK:STDOUT:     %IntLiteral.call: init type = call %IntLiteral.ref() [concrete = Core.IntLiteral]
@@ -482,36 +482,36 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @Int(%N.param: Core.IntLiteral) -> type = "int.make_type_signed";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AddWith.Op(@AddWith.%T.loc7_19.2: type, @AddWith.%Self.1: @AddWith.%AddWith.type (%AddWith.type.bc7)) {
+// CHECK:STDOUT: generic fn @AddWith.Op(@AddWith.%T.loc7_19.2: type, @AddWith.%Self.1: @AddWith.%AddWith.type (%AddWith.type.f2c)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.bc7)]
-// CHECK:STDOUT:   %Self: @AddWith.Op.%AddWith.type (%AddWith.type.bc7) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.deb)]
-// CHECK:STDOUT:   %Self.as_type.loc8_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.6cc)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc8_15.1 [symbolic = %pattern_type (constants.%pattern_type.4a8)]
+// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.f2c)]
+// CHECK:STDOUT:   %Self: @AddWith.Op.%AddWith.type (%AddWith.type.f2c) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.46b)]
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_15.1 (constants.%Self.as_type.a7a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc8_15.1 [symbolic = %pattern_type (constants.%pattern_type.3ac)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc), %other.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc)) -> @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.6cc);
+// CHECK:STDOUT:   fn(%self.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a), %other.param: @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a)) -> @AddWith.Op.%Self.as_type.loc8_15.1 (%Self.as_type.a7a);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @As.Convert(@As.%T.loc11_14.2: type, @As.%Self.1: @As.%As.type (%As.type.8ba)) {
+// CHECK:STDOUT: generic fn @As.Convert(@As.%T.loc11_14.2: type, @As.%Self.1: @As.%As.type (%As.type.d46)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T)> [symbolic = %As.type (constants.%As.type.8ba)]
-// CHECK:STDOUT:   %Self: @As.Convert.%As.type (%As.type.8ba) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.b4e)]
-// CHECK:STDOUT:   %Self.as_type.loc12_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.7f0)]
-// CHECK:STDOUT:   %pattern_type.loc12_14: type = pattern_type %Self.as_type.loc12_20.1 [symbolic = %pattern_type.loc12_14 (constants.%pattern_type.947)]
+// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T)> [symbolic = %As.type (constants.%As.type.d46)]
+// CHECK:STDOUT:   %Self: @As.Convert.%As.type (%As.type.d46) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.b52)]
+// CHECK:STDOUT:   %Self.as_type.loc12_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc12_20.1 (constants.%Self.as_type.d59)]
+// CHECK:STDOUT:   %pattern_type.loc12_14: type = pattern_type %Self.as_type.loc12_20.1 [symbolic = %pattern_type.loc12_14 (constants.%pattern_type.dc0b)]
 // CHECK:STDOUT:   %pattern_type.loc12_28: type = pattern_type %T [symbolic = %pattern_type.loc12_28 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @As.Convert.%Self.as_type.loc12_20.1 (%Self.as_type.7f0)) -> @As.Convert.%T (%T);
+// CHECK:STDOUT:   fn(%self.param: @As.Convert.%Self.as_type.loc12_20.1 (%Self.as_type.d59)) -> @As.Convert.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%T.loc15_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f)) {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%T.loc15_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0f3)]
-// CHECK:STDOUT:   %Self.as_type.loc16_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.419)]
-// CHECK:STDOUT:   %pattern_type.loc16_14: type = pattern_type %Self.as_type.loc16_20.1 [symbolic = %pattern_type.loc16_14 (constants.%pattern_type.a93)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.545)]
+// CHECK:STDOUT:   %Self.as_type.loc16_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_20.1 (constants.%Self.as_type.692)]
+// CHECK:STDOUT:   %pattern_type.loc16_14: type = pattern_type %Self.as_type.loc16_20.1 [symbolic = %pattern_type.loc16_14 (constants.%pattern_type.fb9)]
 // CHECK:STDOUT:   %pattern_type.loc16_28: type = pattern_type %T [symbolic = %pattern_type.loc16_28 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @ImplicitAs.Convert.%Self.as_type.loc16_20.1 (%Self.as_type.419)) -> @ImplicitAs.Convert.%T (%T);
+// CHECK:STDOUT:   fn(%self.param: @ImplicitAs.Convert.%Self.as_type.loc16_20.1 (%Self.as_type.692)) -> @ImplicitAs.Convert.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @i32.builtin.as.AddWith.impl.Op(%self.param: %i32.builtin, %other.param: %i32.builtin) -> %i32.builtin = "int.sadd";
@@ -526,24 +526,24 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc7_19.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AddWith.Op(constants.%T, constants.%Self.deb) {
+// CHECK:STDOUT: specific @AddWith.Op(constants.%T, constants.%Self.46b) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.bc7
-// CHECK:STDOUT:   %Self => constants.%Self.deb
-// CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%Self.as_type.6cc
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4a8
+// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.f2c
+// CHECK:STDOUT:   %Self => constants.%Self.46b
+// CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%Self.as_type.a7a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3ac
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @As(constants.%T) {
 // CHECK:STDOUT:   %T.loc11_14.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @As.Convert(constants.%T, constants.%Self.b4e) {
+// CHECK:STDOUT: specific @As.Convert(constants.%T, constants.%Self.b52) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %As.type => constants.%As.type.8ba
-// CHECK:STDOUT:   %Self => constants.%Self.b4e
-// CHECK:STDOUT:   %Self.as_type.loc12_20.1 => constants.%Self.as_type.7f0
-// CHECK:STDOUT:   %pattern_type.loc12_14 => constants.%pattern_type.947
+// CHECK:STDOUT:   %As.type => constants.%As.type.d46
+// CHECK:STDOUT:   %Self => constants.%Self.b52
+// CHECK:STDOUT:   %Self.as_type.loc12_20.1 => constants.%Self.as_type.d59
+// CHECK:STDOUT:   %pattern_type.loc12_14 => constants.%pattern_type.dc0b
 // CHECK:STDOUT:   %pattern_type.loc12_28 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -551,12 +551,12 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%T, constants.%Self.0f3) {
+// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%T, constants.%Self.545) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.07f
-// CHECK:STDOUT:   %Self => constants.%Self.0f3
-// CHECK:STDOUT:   %Self.as_type.loc16_20.1 => constants.%Self.as_type.419
-// CHECK:STDOUT:   %pattern_type.loc16_14 => constants.%pattern_type.a93
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.f40
+// CHECK:STDOUT:   %Self => constants.%Self.545
+// CHECK:STDOUT:   %Self.as_type.loc16_20.1 => constants.%Self.as_type.692
+// CHECK:STDOUT:   %pattern_type.loc16_14 => constants.%pattern_type.fb9
 // CHECK:STDOUT:   %pattern_type.loc16_28 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -564,8 +564,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc7_19.1 => constants.%i32.builtin
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.49d
-// CHECK:STDOUT:   %Self.2 => constants.%Self.da9
+// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.dbb
+// CHECK:STDOUT:   %Self.2 => constants.%Self.1a8
 // CHECK:STDOUT:   %AddWith.Op.type => constants.%AddWith.Op.type.efc
 // CHECK:STDOUT:   %AddWith.Op => constants.%AddWith.Op.a62
 // CHECK:STDOUT:   %AddWith.assoc_type => constants.%AddWith.assoc_type.a65
@@ -574,7 +574,7 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AddWith.Op(constants.%i32.builtin, constants.%AddWith.facet) {
 // CHECK:STDOUT:   %T => constants.%i32.builtin
-// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.49d
+// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.dbb
 // CHECK:STDOUT:   %Self => constants.%AddWith.facet
 // CHECK:STDOUT:   %Self.as_type.loc8_15.1 => constants.%i32.builtin
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.956
@@ -584,8 +584,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc11_14.1 => constants.%i32.builtin
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %As.type => constants.%As.type.a09
-// CHECK:STDOUT:   %Self.2 => constants.%Self.2fa
+// CHECK:STDOUT:   %As.type => constants.%As.type.846
+// CHECK:STDOUT:   %Self.2 => constants.%Self.a87
 // CHECK:STDOUT:   %As.Convert.type => constants.%As.Convert.type.c0d
 // CHECK:STDOUT:   %As.Convert => constants.%As.Convert.713
 // CHECK:STDOUT:   %As.assoc_type => constants.%As.assoc_type.b9b
@@ -594,10 +594,10 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @As.Convert(constants.%i32.builtin, constants.%As.facet) {
 // CHECK:STDOUT:   %T => constants.%i32.builtin
-// CHECK:STDOUT:   %As.type => constants.%As.type.a09
+// CHECK:STDOUT:   %As.type => constants.%As.type.846
 // CHECK:STDOUT:   %Self => constants.%As.facet
 // CHECK:STDOUT:   %Self.as_type.loc12_20.1 => Core.IntLiteral
-// CHECK:STDOUT:   %pattern_type.loc12_14 => constants.%pattern_type.dc0
+// CHECK:STDOUT:   %pattern_type.loc12_14 => constants.%pattern_type.dc06
 // CHECK:STDOUT:   %pattern_type.loc12_28 => constants.%pattern_type.956
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -605,20 +605,20 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc15_22.1 => constants.%i32.builtin
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.11a
-// CHECK:STDOUT:   %Self.2 => constants.%Self.e0a
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.996
+// CHECK:STDOUT:   %Self.2 => constants.%Self.100
 // CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.752
 // CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.fcc
 // CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.1cf
 // CHECK:STDOUT:   %assoc0.loc16_32.2 => constants.%assoc0.3ce
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%i32.builtin, constants.%ImplicitAs.facet.bcb) {
+// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%i32.builtin, constants.%ImplicitAs.facet.099) {
 // CHECK:STDOUT:   %T => constants.%i32.builtin
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.11a
-// CHECK:STDOUT:   %Self => constants.%ImplicitAs.facet.bcb
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.996
+// CHECK:STDOUT:   %Self => constants.%ImplicitAs.facet.099
 // CHECK:STDOUT:   %Self.as_type.loc16_20.1 => Core.IntLiteral
-// CHECK:STDOUT:   %pattern_type.loc16_14 => constants.%pattern_type.dc0
+// CHECK:STDOUT:   %pattern_type.loc16_14 => constants.%pattern_type.dc06
 // CHECK:STDOUT:   %pattern_type.loc16_28 => constants.%pattern_type.956
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -626,21 +626,21 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T.loc15_22.1 => Core.IntLiteral
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.9fc
-// CHECK:STDOUT:   %Self.2 => constants.%Self.37e
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.ff1
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b66
 // CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.60e
 // CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.c73
 // CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.014
 // CHECK:STDOUT:   %assoc0.loc16_32.2 => constants.%assoc0.757
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs.Convert(Core.IntLiteral, constants.%ImplicitAs.facet.a85) {
+// CHECK:STDOUT: specific @ImplicitAs.Convert(Core.IntLiteral, constants.%ImplicitAs.facet.3e7) {
 // CHECK:STDOUT:   %T => Core.IntLiteral
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.9fc
-// CHECK:STDOUT:   %Self => constants.%ImplicitAs.facet.a85
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.ff1
+// CHECK:STDOUT:   %Self => constants.%ImplicitAs.facet.3e7
 // CHECK:STDOUT:   %Self.as_type.loc16_20.1 => constants.%i32.builtin
 // CHECK:STDOUT:   %pattern_type.loc16_14 => constants.%pattern_type.956
-// CHECK:STDOUT:   %pattern_type.loc16_28 => constants.%pattern_type.dc0
+// CHECK:STDOUT:   %pattern_type.loc16_28 => constants.%pattern_type.dc06
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- user.carbon
@@ -654,17 +654,17 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %As.type.eed: type = facet_type <@As, @As(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.65a: %As.type.eed = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %As.type.922: type = facet_type <@As, @As(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.894: %As.type.922 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %As.Convert.type.843: type = fn_type @As.Convert, @As(%T) [symbolic]
 // CHECK:STDOUT:   %As.Convert.95f: %As.Convert.type.843 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
-// CHECK:STDOUT:   %Self.as_type.04d: type = facet_access_type %Self.65a [symbolic]
-// CHECK:STDOUT:   %pattern_type.ca4: type = pattern_type %Self.as_type.04d [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4aa: type = facet_access_type %Self.894 [symbolic]
+// CHECK:STDOUT:   %pattern_type.430: type = pattern_type %Self.as_type.4aa [symbolic]
 // CHECK:STDOUT:   %As.assoc_type.760: type = assoc_entity_type @As, @As(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.076: %As.assoc_type.760 = assoc_entity element0, imports.%Core.import_ref.708 [symbolic]
-// CHECK:STDOUT:   %As.type.a6d: type = facet_type <@As, @As(%i32.builtin)> [concrete]
-// CHECK:STDOUT:   %Self.c25: %As.type.a6d = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %As.type.ffe: type = facet_type <@As, @As(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %Self.629: %As.type.ffe = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %As.Convert.type.378: type = fn_type @As.Convert, @As(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %As.Convert.e51: %As.Convert.type.378 = struct_value () [concrete]
 // CHECK:STDOUT:   %As.assoc_type.bc2: type = assoc_entity_type @As, @As(%i32.builtin) [concrete]
@@ -672,64 +672,64 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %assoc0.97d: %As.assoc_type.760 = assoc_entity element0, imports.%Core.import_ref.4e8 [symbolic]
 // CHECK:STDOUT:   %AddWith.type.e05: type = generic_interface_type @AddWith [concrete]
 // CHECK:STDOUT:   %AddWith.generic: %AddWith.type.e05 = struct_value () [concrete]
-// CHECK:STDOUT:   %AddWith.type.6d3: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.6c1: %AddWith.type.6d3 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %AddWith.type.6f5: type = facet_type <@AddWith, @AddWith(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %AddWith.type.726: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.98a: %AddWith.type.726 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %AddWith.type.46d: type = facet_type <@AddWith, @AddWith(%i32.builtin)> [concrete]
 // CHECK:STDOUT:   %AddWith.Op.type.22d: type = fn_type @AddWith.Op, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %AddWith.Op.965: %AddWith.Op.type.22d = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type.030: type = facet_access_type %Self.6c1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.7fc: type = pattern_type %Self.as_type.030 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.ec8: type = facet_access_type %Self.98a [symbolic]
+// CHECK:STDOUT:   %pattern_type.a2e: type = pattern_type %Self.as_type.ec8 [symbolic]
 // CHECK:STDOUT:   %AddWith.assoc_type.c10: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.89962d.1: %AddWith.assoc_type.c10 = assoc_entity element0, imports.%Core.import_ref.7e6ace.1 [symbolic]
-// CHECK:STDOUT:   %Self.ec3: %AddWith.type.6f5 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.d53: %AddWith.type.46d = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %AddWith.Op.type.0b7: type = fn_type @AddWith.Op, @AddWith(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %AddWith.Op.9d6: %AddWith.Op.type.0b7 = struct_value () [concrete]
 // CHECK:STDOUT:   %AddWith.assoc_type.dff: type = assoc_entity_type @AddWith, @AddWith(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %assoc0.7f1: %AddWith.assoc_type.dff = assoc_entity element0, imports.%Core.import_ref.1b9 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.d62: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.519: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.61e: type = facet_type <@ImplicitAs, @ImplicitAs(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.dc4: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.ff0: %ImplicitAs.type.dc4 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.78a: type = facet_type <@ImplicitAs, @ImplicitAs(%i32.builtin)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.275: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42e: %ImplicitAs.Convert.type.275 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type.40a: type = facet_access_type %Self.519 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f3e: type = pattern_type %Self.as_type.40a [symbolic]
+// CHECK:STDOUT:   %Self.as_type.51c: type = facet_access_type %Self.ff0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.7ff: type = pattern_type %Self.as_type.51c [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.dc001e.1: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207961.1 [symbolic]
-// CHECK:STDOUT:   %Self.d28: %ImplicitAs.type.61e = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.ea8: %ImplicitAs.type.78a = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.059: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.4d7: %ImplicitAs.Convert.type.059 = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.398: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %assoc0.6fd: %ImplicitAs.assoc_type.398 = assoc_entity element0, imports.%Core.import_ref.1c752f.1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
-// CHECK:STDOUT:   %Self.9ac: %ImplicitAs.type.2fd = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %Self.f9c: %ImplicitAs.type.139 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.0e2: %ImplicitAs.Convert.type.71e = struct_value () [concrete]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.959: type = assoc_entity_type @ImplicitAs, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %assoc0.8c4: %ImplicitAs.assoc_type.959 = assoc_entity element0, imports.%Core.import_ref.1c752f.2 [concrete]
 // CHECK:STDOUT:   %As.impl_witness: <witness> = impl_witness imports.%As.impl_witness_table [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a6d = facet_value Core.IntLiteral, (%As.impl_witness) [concrete]
-// CHECK:STDOUT:   %.387: type = fn_type_with_self_type %As.Convert.type.378, %As.facet [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.ffe = facet_value Core.IntLiteral, (%As.impl_witness) [concrete]
+// CHECK:STDOUT:   %.85d: type = fn_type_with_self_type %As.Convert.type.378, %As.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type: type = fn_type @Core.IntLiteral.as.As.impl.Convert [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert: %Core.IntLiteral.as.As.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.b34: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.4b3: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert [concrete]
 // CHECK:STDOUT:   %int_1.f38: %i32.builtin = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.324: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.As.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.7b2: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.As.impl.Convert [concrete]
 // CHECK:STDOUT:   %int_2.5a1: %i32.builtin = int_value 2 [concrete]
 // CHECK:STDOUT:   %assoc0.89962d.2: %AddWith.assoc_type.c10 = assoc_entity element0, imports.%Core.import_ref.7e6ace.2 [symbolic]
 // CHECK:STDOUT:   %AddWith.impl_witness: <witness> = impl_witness imports.%AddWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.6f5 = facet_value %i32.builtin, (%AddWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.1e7: type = fn_type_with_self_type %AddWith.Op.type.0b7, %AddWith.facet [concrete]
+// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.46d = facet_value %i32.builtin, (%AddWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.817: type = fn_type_with_self_type %AddWith.Op.type.0b7, %AddWith.facet [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.type: type = fn_type @i32.builtin.as.AddWith.impl.Op [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op: %i32.builtin.as.AddWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.bound.de8: <bound method> = bound_method %int_1.f38, %i32.builtin.as.AddWith.impl.Op [concrete]
+// CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.bound.abd: <bound method> = bound_method %int_1.f38, %i32.builtin.as.AddWith.impl.Op [concrete]
 // CHECK:STDOUT:   %int_3.a0f: %i32.builtin = int_value 3 [concrete]
 // CHECK:STDOUT:   %assoc0.dc001e.2: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207961.2 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.9c5: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.5fc [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.07b: %ImplicitAs.type.2fd = facet_value %i32.builtin, (%ImplicitAs.impl_witness.9c5) [concrete]
-// CHECK:STDOUT:   %.53b: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.07b [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.f52: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.8fb [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.b11: %ImplicitAs.type.139 = facet_value %i32.builtin, (%ImplicitAs.impl_witness.f52) [concrete]
+// CHECK:STDOUT:   %.de6: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.b11 [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.ImplicitAs.impl.Convert.type: type = fn_type @i32.builtin.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.ImplicitAs.impl.Convert: %i32.builtin.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32.builtin.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.a0f, %i32.builtin.as.ImplicitAs.impl.Convert [concrete]
@@ -737,20 +737,20 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %array_type: type = array_type %int_3.1ba, %i32.builtin [concrete]
 // CHECK:STDOUT:   %pattern_type.9e2: type = pattern_type %array_type [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.94d: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.As.impl.Convert [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.8fc: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.As.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.2b2: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.As.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.2d0: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.As.impl.Convert [concrete]
 // CHECK:STDOUT:   %int_4.4f1: %i32.builtin = int_value 4 [concrete]
-// CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.bound.703: <bound method> = bound_method %int_3.a0f, %i32.builtin.as.AddWith.impl.Op [concrete]
+// CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.bound.bf8: <bound method> = bound_method %int_3.a0f, %i32.builtin.as.AddWith.impl.Op [concrete]
 // CHECK:STDOUT:   %int_7: %i32.builtin = int_value 7 [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral, %i32.builtin) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.07a: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.78e [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.a3d: %ImplicitAs.type.61e = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.07a) [concrete]
-// CHECK:STDOUT:   %.ec1: type = fn_type_with_self_type %ImplicitAs.Convert.type.059, %ImplicitAs.facet.a3d [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.0ab: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e38 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.c7d: %ImplicitAs.type.78a = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.0ab) [concrete]
+// CHECK:STDOUT:   %.9a9: type = fn_type_with_self_type %ImplicitAs.Convert.type.059, %ImplicitAs.facet.c7d [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b6b: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.626: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a95: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.762: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_3.a0f, %int_4.4f1, %int_7) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -765,54 +765,54 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//default, Int, loaded [concrete = constants.%Int]
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//default, As, loaded [concrete = constants.%As.generic]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc11_14, loaded [symbolic = @As.%T (constants.%T)]
-// CHECK:STDOUT:   %Core.import_ref.a7c = import_ref Core//default, inst106 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.178 = import_ref Core//default, inst106 [no loc], unloaded
 // CHECK:STDOUT:   %Core.import_ref.5e1: @As.%As.assoc_type (%As.assoc_type.760) = import_ref Core//default, loc12_32, loaded [symbolic = @As.%assoc0 (constants.%assoc0.97d)]
 // CHECK:STDOUT:   %Core.Convert.313 = import_ref Core//default, Convert, unloaded
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc11_14, loaded [symbolic = @As.%T (constants.%T)]
-// CHECK:STDOUT:   %Core.import_ref.996: @As.%As.type (%As.type.eed) = import_ref Core//default, inst106 [no loc], loaded [symbolic = @As.%Self (constants.%Self.65a)]
+// CHECK:STDOUT:   %Core.import_ref.96a: @As.%As.type (%As.type.922) = import_ref Core//default, inst106 [no loc], loaded [symbolic = @As.%Self (constants.%Self.894)]
 // CHECK:STDOUT:   %Core.import_ref.708: @As.%As.Convert.type (%As.Convert.type.843) = import_ref Core//default, loc12_32, loaded [symbolic = @As.%As.Convert (constants.%As.Convert.95f)]
 // CHECK:STDOUT:   %Core.import_ref.4e8 = import_ref Core//default, loc12_32, unloaded
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.3: type = import_ref Core//default, loc7_19, loaded [symbolic = @AddWith.%T (constants.%T)]
-// CHECK:STDOUT:   %Core.import_ref.476 = import_ref Core//default, inst51 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.4d4 = import_ref Core//default, inst51 [no loc], unloaded
 // CHECK:STDOUT:   %Core.import_ref.35d: @AddWith.%AddWith.assoc_type (%AddWith.assoc_type.c10) = import_ref Core//default, loc8_41, loaded [symbolic = @AddWith.%assoc0 (constants.%assoc0.89962d.2)]
 // CHECK:STDOUT:   %Core.Op = import_ref Core//default, Op, unloaded
-// CHECK:STDOUT:   %Core.import_ref.772: <witness> = import_ref Core//default, loc19_26, loaded [concrete = constants.%AddWith.impl_witness]
+// CHECK:STDOUT:   %Core.import_ref.f7d: <witness> = import_ref Core//default, loc19_26, loaded [concrete = constants.%AddWith.impl_witness]
 // CHECK:STDOUT:   %Core.import_ref.c8c7cd.1: type = import_ref Core//default, loc19_6, loaded [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:   %Core.import_ref.ef3: type = import_ref Core//default, loc19_24, loaded [concrete = constants.%AddWith.type.6f5]
+// CHECK:STDOUT:   %Core.import_ref.225: type = import_ref Core//default, loc19_24, loaded [concrete = constants.%AddWith.type.46d]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.4: type = import_ref Core//default, loc7_19, loaded [symbolic = @AddWith.%T (constants.%T)]
-// CHECK:STDOUT:   %Core.import_ref.6bf: @AddWith.%AddWith.type (%AddWith.type.6d3) = import_ref Core//default, inst51 [no loc], loaded [symbolic = @AddWith.%Self (constants.%Self.6c1)]
+// CHECK:STDOUT:   %Core.import_ref.3a9: @AddWith.%AddWith.type (%AddWith.type.726) = import_ref Core//default, inst51 [no loc], loaded [symbolic = @AddWith.%Self (constants.%Self.98a)]
 // CHECK:STDOUT:   %Core.import_ref.7e6ace.1 = import_ref Core//default, loc8_41, unloaded
 // CHECK:STDOUT:   %Core.import_ref.1b9: @AddWith.%AddWith.Op.type (%AddWith.Op.type.22d) = import_ref Core//default, loc8_41, loaded [symbolic = @AddWith.%AddWith.Op (constants.%AddWith.Op.965)]
-// CHECK:STDOUT:   %Core.import_ref.cb6: <witness> = import_ref Core//default, loc23_30, loaded [concrete = constants.%As.impl_witness]
+// CHECK:STDOUT:   %Core.import_ref.d9d: <witness> = import_ref Core//default, loc23_30, loaded [concrete = constants.%As.impl_witness]
 // CHECK:STDOUT:   %Core.import_ref.8721d7.1: type = import_ref Core//default, loc23_17, loaded [concrete = Core.IntLiteral]
-// CHECK:STDOUT:   %Core.import_ref.1e5: type = import_ref Core//default, loc23_28, loaded [concrete = constants.%As.type.a6d]
+// CHECK:STDOUT:   %Core.import_ref.cbb: type = import_ref Core//default, loc23_28, loaded [concrete = constants.%As.type.ffe]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.5: type = import_ref Core//default, loc15_22, loaded [symbolic = @ImplicitAs.%T (constants.%T)]
-// CHECK:STDOUT:   %Core.import_ref.ff5 = import_ref Core//default, inst151 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.873 = import_ref Core//default, inst151 [no loc], unloaded
 // CHECK:STDOUT:   %Core.import_ref.492: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.ca0) = import_ref Core//default, loc16_32, loaded [symbolic = @ImplicitAs.%assoc0 (constants.%assoc0.dc001e.2)]
 // CHECK:STDOUT:   %Core.Convert.e69 = import_ref Core//default, Convert, unloaded
-// CHECK:STDOUT:   %Core.import_ref.c62: <witness> = import_ref Core//default, loc27_38, loaded [concrete = constants.%ImplicitAs.impl_witness.07a]
+// CHECK:STDOUT:   %Core.import_ref.ef1: <witness> = import_ref Core//default, loc27_38, loaded [concrete = constants.%ImplicitAs.impl_witness.0ab]
 // CHECK:STDOUT:   %Core.import_ref.8721d7.2: type = import_ref Core//default, loc27_17, loaded [concrete = Core.IntLiteral]
-// CHECK:STDOUT:   %Core.import_ref.4d9: type = import_ref Core//default, loc27_36, loaded [concrete = constants.%ImplicitAs.type.61e]
+// CHECK:STDOUT:   %Core.import_ref.7f3: type = import_ref Core//default, loc27_36, loaded [concrete = constants.%ImplicitAs.type.78a]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.6: type = import_ref Core//default, loc15_22, loaded [symbolic = @ImplicitAs.%T (constants.%T)]
-// CHECK:STDOUT:   %Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = import_ref Core//default, inst151 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.519)]
+// CHECK:STDOUT:   %Core.import_ref.52f: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4) = import_ref Core//default, inst151 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %Core.import_ref.207961.1 = import_ref Core//default, loc16_32, unloaded
 // CHECK:STDOUT:   %Core.import_ref.1c752f.1: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = import_ref Core//default, loc16_32, loaded [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
-// CHECK:STDOUT:   %Core.import_ref.c5f: <witness> = import_ref Core//default, loc31_38, loaded [concrete = constants.%ImplicitAs.impl_witness.9c5]
+// CHECK:STDOUT:   %Core.import_ref.6dc: <witness> = import_ref Core//default, loc31_38, loaded [concrete = constants.%ImplicitAs.impl_witness.f52]
 // CHECK:STDOUT:   %Core.import_ref.c8c7cd.2: type = import_ref Core//default, loc31_6, loaded [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:   %Core.import_ref.efb: type = import_ref Core//default, loc31_36, loaded [concrete = constants.%ImplicitAs.type.2fd]
+// CHECK:STDOUT:   %Core.import_ref.283: type = import_ref Core//default, loc31_36, loaded [concrete = constants.%ImplicitAs.type.139]
 // CHECK:STDOUT:   %Core.import_ref.1c752f.2: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = import_ref Core//default, loc16_32, loaded [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
-// CHECK:STDOUT:   %Core.import_ref.73a: %Core.IntLiteral.as.As.impl.Convert.type = import_ref Core//default, loc24_35, loaded [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
-// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.73a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.116: %Core.IntLiteral.as.As.impl.Convert.type = import_ref Core//default, loc24_35, loaded [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
+// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.116), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT:   %Core.AddWith: %AddWith.type.e05 = import_ref Core//default, AddWith, loaded [concrete = constants.%AddWith.generic]
 // CHECK:STDOUT:   %Core.import_ref.7e6ace.2 = import_ref Core//default, loc8_41, unloaded
-// CHECK:STDOUT:   %Core.import_ref.079: %i32.builtin.as.AddWith.impl.Op.type = import_ref Core//default, loc20_42, loaded [concrete = constants.%i32.builtin.as.AddWith.impl.Op]
-// CHECK:STDOUT:   %AddWith.impl_witness_table = impl_witness_table (%Core.import_ref.079), @i32.builtin.as.AddWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.00a: %i32.builtin.as.AddWith.impl.Op.type = import_ref Core//default, loc20_42, loaded [concrete = constants.%i32.builtin.as.AddWith.impl.Op]
+// CHECK:STDOUT:   %AddWith.impl_witness_table = impl_witness_table (%Core.import_ref.00a), @i32.builtin.as.AddWith.impl [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//default, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:   %Core.import_ref.207961.2 = import_ref Core//default, loc16_32, unloaded
-// CHECK:STDOUT:   %Core.import_ref.4f9: %i32.builtin.as.ImplicitAs.impl.Convert.type = import_ref Core//default, loc32_44, loaded [concrete = constants.%i32.builtin.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.5fc = impl_witness_table (%Core.import_ref.4f9), @i32.builtin.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.f35: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type = import_ref Core//default, loc28_35, loaded [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.78e = impl_witness_table (%Core.import_ref.f35), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7be: %i32.builtin.as.ImplicitAs.impl.Convert.type = import_ref Core//default, loc32_44, loaded [concrete = constants.%i32.builtin.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.8fb = impl_witness_table (%Core.import_ref.7be), @i32.builtin.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.b31: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type = import_ref Core//default, loc28_35, loaded [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e38 = impl_witness_table (%Core.import_ref.b31), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -834,8 +834,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %Int.call.loc4_27: init type = call constants.%Int(%int_32.loc4_27) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc4_27.1: type = value_of_initializer %Int.call.loc4_27 [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc4_27.2: type = converted %Int.call.loc4_27, %.loc4_27.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:     %impl.elem0.loc4_24: %.387 = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
-// CHECK:STDOUT:     %bound_method.loc4_24: <bound method> = bound_method %int_1, %impl.elem0.loc4_24 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.b34]
+// CHECK:STDOUT:     %impl.elem0.loc4_24: %.85d = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
+// CHECK:STDOUT:     %bound_method.loc4_24: <bound method> = bound_method %int_1, %impl.elem0.loc4_24 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.4b3]
 // CHECK:STDOUT:     %Core.IntLiteral.as.As.impl.Convert.call.loc4_24: init %i32.builtin = call %bound_method.loc4_24(%int_1) [concrete = constants.%int_1.f38]
 // CHECK:STDOUT:     %.loc4_24.1: %i32.builtin = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call.loc4_24 [concrete = constants.%int_1.f38]
 // CHECK:STDOUT:     %.loc4_24.2: %i32.builtin = converted %int_1, %.loc4_24.1 [concrete = constants.%int_1.f38]
@@ -844,17 +844,17 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %Int.call.loc4_40: init type = call constants.%Int(%int_32.loc4_40) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc4_40.1: type = value_of_initializer %Int.call.loc4_40 [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc4_40.2: type = converted %Int.call.loc4_40, %.loc4_40.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:     %impl.elem0.loc4_37: %.387 = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
-// CHECK:STDOUT:     %bound_method.loc4_37: <bound method> = bound_method %int_2, %impl.elem0.loc4_37 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.324]
+// CHECK:STDOUT:     %impl.elem0.loc4_37: %.85d = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
+// CHECK:STDOUT:     %bound_method.loc4_37: <bound method> = bound_method %int_2, %impl.elem0.loc4_37 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.7b2]
 // CHECK:STDOUT:     %Core.IntLiteral.as.As.impl.Convert.call.loc4_37: init %i32.builtin = call %bound_method.loc4_37(%int_2) [concrete = constants.%int_2.5a1]
 // CHECK:STDOUT:     %.loc4_37.1: %i32.builtin = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call.loc4_37 [concrete = constants.%int_2.5a1]
 // CHECK:STDOUT:     %.loc4_37.2: %i32.builtin = converted %int_2, %.loc4_37.1 [concrete = constants.%int_2.5a1]
-// CHECK:STDOUT:     %impl.elem0.loc4_32.1: %.1e7 = impl_witness_access constants.%AddWith.impl_witness, element0 [concrete = constants.%i32.builtin.as.AddWith.impl.Op]
-// CHECK:STDOUT:     %bound_method.loc4_32.1: <bound method> = bound_method %.loc4_24.2, %impl.elem0.loc4_32.1 [concrete = constants.%i32.builtin.as.AddWith.impl.Op.bound.de8]
+// CHECK:STDOUT:     %impl.elem0.loc4_32.1: %.817 = impl_witness_access constants.%AddWith.impl_witness, element0 [concrete = constants.%i32.builtin.as.AddWith.impl.Op]
+// CHECK:STDOUT:     %bound_method.loc4_32.1: <bound method> = bound_method %.loc4_24.2, %impl.elem0.loc4_32.1 [concrete = constants.%i32.builtin.as.AddWith.impl.Op.bound.abd]
 // CHECK:STDOUT:     %i32.builtin.as.AddWith.impl.Op.call: init %i32.builtin = call %bound_method.loc4_32.1(%.loc4_24.2, %.loc4_37.2) [concrete = constants.%int_3.a0f]
 // CHECK:STDOUT:     %.loc4_16.1: type = value_of_initializer %Int.call.loc4_16 [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:     %.loc4_16.2: type = converted %Int.call.loc4_16, %.loc4_16.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:     %impl.elem0.loc4_32.2: %.53b = impl_witness_access constants.%ImplicitAs.impl_witness.9c5, element0 [concrete = constants.%i32.builtin.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:     %impl.elem0.loc4_32.2: %.de6 = impl_witness_access constants.%ImplicitAs.impl_witness.f52, element0 [concrete = constants.%i32.builtin.as.ImplicitAs.impl.Convert]
 // CHECK:STDOUT:     %bound_method.loc4_32.2: <bound method> = bound_method %i32.builtin.as.AddWith.impl.Op.call, %impl.elem0.loc4_32.2 [concrete = constants.%i32.builtin.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %.loc4_32.1: %i32.builtin = value_of_initializer %i32.builtin.as.AddWith.impl.Op.call [concrete = constants.%int_3.a0f]
 // CHECK:STDOUT:     %.loc4_32.2: %i32.builtin = converted %i32.builtin.as.AddWith.impl.Op.call, %.loc4_32.1 [concrete = constants.%int_3.a0f]
@@ -870,8 +870,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T)> [symbolic = %As.type (constants.%As.type.eed)]
-// CHECK:STDOUT:   %Self: @As.%As.type (%As.type.eed) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.65a)]
+// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T)> [symbolic = %As.type (constants.%As.type.922)]
+// CHECK:STDOUT:   %Self: @As.%As.type (%As.type.922) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.894)]
 // CHECK:STDOUT:   %As.Convert.type: type = fn_type @As.Convert, @As(%T) [symbolic = %As.Convert.type (constants.%As.Convert.type.843)]
 // CHECK:STDOUT:   %As.Convert: @As.%As.Convert.type (%As.Convert.type.843) = struct_value () [symbolic = %As.Convert (constants.%As.Convert.95f)]
 // CHECK:STDOUT:   %As.assoc_type: type = assoc_entity_type @As, @As(%T) [symbolic = %As.assoc_type (constants.%As.assoc_type.760)]
@@ -879,7 +879,7 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.a7c
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.178
 // CHECK:STDOUT:     .Convert = imports.%Core.import_ref.5e1
 // CHECK:STDOUT:     witness = (imports.%Core.Convert.313)
 // CHECK:STDOUT:   }
@@ -889,8 +889,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.6d3)]
-// CHECK:STDOUT:   %Self: @AddWith.%AddWith.type (%AddWith.type.6d3) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.6c1)]
+// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.726)]
+// CHECK:STDOUT:   %Self: @AddWith.%AddWith.type (%AddWith.type.726) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.98a)]
 // CHECK:STDOUT:   %AddWith.Op.type: type = fn_type @AddWith.Op, @AddWith(%T) [symbolic = %AddWith.Op.type (constants.%AddWith.Op.type.22d)]
 // CHECK:STDOUT:   %AddWith.Op: @AddWith.%AddWith.Op.type (%AddWith.Op.type.22d) = struct_value () [symbolic = %AddWith.Op (constants.%AddWith.Op.965)]
 // CHECK:STDOUT:   %AddWith.assoc_type: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic = %AddWith.assoc_type (constants.%AddWith.assoc_type.c10)]
@@ -898,7 +898,7 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.476
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.4d4
 // CHECK:STDOUT:     .Op = imports.%Core.import_ref.35d
 // CHECK:STDOUT:     witness = (imports.%Core.Op)
 // CHECK:STDOUT:   }
@@ -908,8 +908,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.dc4)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%T) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type.275)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%T) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.ca0)]
@@ -917,61 +917,61 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.ff5
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.873
 // CHECK:STDOUT:     .Convert = imports.%Core.import_ref.492
 // CHECK:STDOUT:     witness = (imports.%Core.Convert.e69)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @i32.builtin.as.AddWith.impl: imports.%Core.import_ref.c8c7cd.1 as imports.%Core.import_ref.ef3 [from "core.carbon"] {
+// CHECK:STDOUT: impl @i32.builtin.as.AddWith.impl: imports.%Core.import_ref.c8c7cd.1 as imports.%Core.import_ref.225 [from "core.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Core.import_ref.772
+// CHECK:STDOUT:   witness = imports.%Core.import_ref.f7d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Core.IntLiteral.as.As.impl: imports.%Core.import_ref.8721d7.1 as imports.%Core.import_ref.1e5 [from "core.carbon"] {
+// CHECK:STDOUT: impl @Core.IntLiteral.as.As.impl: imports.%Core.import_ref.8721d7.1 as imports.%Core.import_ref.cbb [from "core.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Core.import_ref.cb6
+// CHECK:STDOUT:   witness = imports.%Core.import_ref.d9d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @Core.IntLiteral.as.ImplicitAs.impl: imports.%Core.import_ref.8721d7.2 as imports.%Core.import_ref.4d9 [from "core.carbon"] {
+// CHECK:STDOUT: impl @Core.IntLiteral.as.ImplicitAs.impl: imports.%Core.import_ref.8721d7.2 as imports.%Core.import_ref.7f3 [from "core.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Core.import_ref.c62
+// CHECK:STDOUT:   witness = imports.%Core.import_ref.ef1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @i32.builtin.as.ImplicitAs.impl: imports.%Core.import_ref.c8c7cd.2 as imports.%Core.import_ref.efb [from "core.carbon"] {
+// CHECK:STDOUT: impl @i32.builtin.as.ImplicitAs.impl: imports.%Core.import_ref.c8c7cd.2 as imports.%Core.import_ref.283 [from "core.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Core.import_ref.c5f
+// CHECK:STDOUT:   witness = imports.%Core.import_ref.6dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @Int = "int.make_type_signed" [from "core.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @As.Convert(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.996: @As.%As.type (%As.type.eed)) [from "core.carbon"] {
+// CHECK:STDOUT: generic fn @As.Convert(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.96a: @As.%As.type (%As.type.922)) [from "core.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T)> [symbolic = %As.type (constants.%As.type.eed)]
-// CHECK:STDOUT:   %Self: @As.Convert.%As.type (%As.type.eed) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.65a)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.04d)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.ca4)]
+// CHECK:STDOUT:   %As.type: type = facet_type <@As, @As(%T)> [symbolic = %As.type (constants.%As.type.922)]
+// CHECK:STDOUT:   %Self: @As.Convert.%As.type (%As.type.922) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.894)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4aa)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.430)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %T [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AddWith.Op(imports.%Core.import_ref.5ab3ec.4: type, imports.%Core.import_ref.6bf: @AddWith.%AddWith.type (%AddWith.type.6d3)) [from "core.carbon"] {
+// CHECK:STDOUT: generic fn @AddWith.Op(imports.%Core.import_ref.5ab3ec.4: type, imports.%Core.import_ref.3a9: @AddWith.%AddWith.type (%AddWith.type.726)) [from "core.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.6d3)]
-// CHECK:STDOUT:   %Self: @AddWith.Op.%AddWith.type (%AddWith.type.6d3) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.6c1)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.030)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.7fc)]
+// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.726)]
+// CHECK:STDOUT:   %Self: @AddWith.Op.%AddWith.type (%AddWith.type.726) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.98a)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.ec8)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.a2e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(imports.%Core.import_ref.5ab3ec.6: type, imports.%Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62)) [from "core.carbon"] {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(imports.%Core.import_ref.5ab3ec.6: type, imports.%Core.import_ref.52f: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4)) [from "core.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.d62) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.40a)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.f3e)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.dc4)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.dc4) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.ff0)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.51c)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.7ff)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %T [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
@@ -994,8 +994,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Int.call.loc4_61: init type = call constants.%Int(%int_32.loc4_61) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:   %.loc4_61.1: type = value_of_initializer %Int.call.loc4_61 [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:   %.loc4_61.2: type = converted %Int.call.loc4_61, %.loc4_61.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:   %impl.elem0.loc4_58: %.387 = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
-// CHECK:STDOUT:   %bound_method.loc4_58: <bound method> = bound_method %int_3.loc4_56, %impl.elem0.loc4_58 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.94d]
+// CHECK:STDOUT:   %impl.elem0.loc4_58: %.85d = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
+// CHECK:STDOUT:   %bound_method.loc4_58: <bound method> = bound_method %int_3.loc4_56, %impl.elem0.loc4_58 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.2b2]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call.loc4_58: init %i32.builtin = call %bound_method.loc4_58(%int_3.loc4_56) [concrete = constants.%int_3.a0f]
 // CHECK:STDOUT:   %.loc4_58.1: %i32.builtin = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call.loc4_58 [concrete = constants.%int_3.a0f]
 // CHECK:STDOUT:   %.loc4_58.2: %i32.builtin = converted %int_3.loc4_56, %.loc4_58.1 [concrete = constants.%int_3.a0f]
@@ -1004,24 +1004,24 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Int.call.loc4_74: init type = call constants.%Int(%int_32.loc4_74) [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:   %.loc4_74.1: type = value_of_initializer %Int.call.loc4_74 [concrete = constants.%i32.builtin]
 // CHECK:STDOUT:   %.loc4_74.2: type = converted %Int.call.loc4_74, %.loc4_74.1 [concrete = constants.%i32.builtin]
-// CHECK:STDOUT:   %impl.elem0.loc4_71: %.387 = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
-// CHECK:STDOUT:   %bound_method.loc4_71: <bound method> = bound_method %int_4.loc4_69, %impl.elem0.loc4_71 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.8fc]
+// CHECK:STDOUT:   %impl.elem0.loc4_71: %.85d = impl_witness_access constants.%As.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert]
+// CHECK:STDOUT:   %bound_method.loc4_71: <bound method> = bound_method %int_4.loc4_69, %impl.elem0.loc4_71 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.2d0]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call.loc4_71: init %i32.builtin = call %bound_method.loc4_71(%int_4.loc4_69) [concrete = constants.%int_4.4f1]
 // CHECK:STDOUT:   %.loc4_71.1: %i32.builtin = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call.loc4_71 [concrete = constants.%int_4.4f1]
 // CHECK:STDOUT:   %.loc4_71.2: %i32.builtin = converted %int_4.loc4_69, %.loc4_71.1 [concrete = constants.%int_4.4f1]
-// CHECK:STDOUT:   %impl.elem0.loc4_66: %.1e7 = impl_witness_access constants.%AddWith.impl_witness, element0 [concrete = constants.%i32.builtin.as.AddWith.impl.Op]
-// CHECK:STDOUT:   %bound_method.loc4_66: <bound method> = bound_method %.loc4_58.2, %impl.elem0.loc4_66 [concrete = constants.%i32.builtin.as.AddWith.impl.Op.bound.703]
+// CHECK:STDOUT:   %impl.elem0.loc4_66: %.817 = impl_witness_access constants.%AddWith.impl_witness, element0 [concrete = constants.%i32.builtin.as.AddWith.impl.Op]
+// CHECK:STDOUT:   %bound_method.loc4_66: <bound method> = bound_method %.loc4_58.2, %impl.elem0.loc4_66 [concrete = constants.%i32.builtin.as.AddWith.impl.Op.bound.bf8]
 // CHECK:STDOUT:   %i32.builtin.as.AddWith.impl.Op.call: init %i32.builtin = call %bound_method.loc4_66(%.loc4_58.2, %.loc4_71.2) [concrete = constants.%int_7]
 // CHECK:STDOUT:   %.loc4_78.1: %tuple.type = tuple_literal (%int_3.loc4_49, %int_4.loc4_52, %i32.builtin.as.AddWith.impl.Op.call)
-// CHECK:STDOUT:   %impl.elem0.loc4_78.1: %.ec1 = impl_witness_access constants.%ImplicitAs.impl_witness.07a, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %bound_method.loc4_78.1: <bound method> = bound_method %int_3.loc4_49, %impl.elem0.loc4_78.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b6b]
+// CHECK:STDOUT:   %impl.elem0.loc4_78.1: %.9a9 = impl_witness_access constants.%ImplicitAs.impl_witness.0ab, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %bound_method.loc4_78.1: <bound method> = bound_method %int_3.loc4_49, %impl.elem0.loc4_78.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a95]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_78.1: init %i32.builtin = call %bound_method.loc4_78.1(%int_3.loc4_49) [concrete = constants.%int_3.a0f]
 // CHECK:STDOUT:   %.loc4_78.2: init %i32.builtin = converted %int_3.loc4_49, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_78.1 [concrete = constants.%int_3.a0f]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:   %.loc4_78.3: ref %i32.builtin = array_index file.%arr.var, %int_0
 // CHECK:STDOUT:   %.loc4_78.4: init %i32.builtin = initialize_from %.loc4_78.2 to %.loc4_78.3 [concrete = constants.%int_3.a0f]
-// CHECK:STDOUT:   %impl.elem0.loc4_78.2: %.ec1 = impl_witness_access constants.%ImplicitAs.impl_witness.07a, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %bound_method.loc4_78.2: <bound method> = bound_method %int_4.loc4_52, %impl.elem0.loc4_78.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.626]
+// CHECK:STDOUT:   %impl.elem0.loc4_78.2: %.9a9 = impl_witness_access constants.%ImplicitAs.impl_witness.0ab, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %bound_method.loc4_78.2: <bound method> = bound_method %int_4.loc4_52, %impl.elem0.loc4_78.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.762]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_78.2: init %i32.builtin = call %bound_method.loc4_78.2(%int_4.loc4_52) [concrete = constants.%int_4.4f1]
 // CHECK:STDOUT:   %.loc4_78.5: init %i32.builtin = converted %int_4.loc4_52, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc4_78.2 [concrete = constants.%int_4.4f1]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
@@ -1040,12 +1040,12 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @As.Convert(constants.%T, constants.%Self.65a) {
+// CHECK:STDOUT: specific @As.Convert(constants.%T, constants.%Self.894) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %As.type => constants.%As.type.eed
-// CHECK:STDOUT:   %Self => constants.%Self.65a
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.04d
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.ca4
+// CHECK:STDOUT:   %As.type => constants.%As.type.922
+// CHECK:STDOUT:   %Self => constants.%Self.894
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4aa
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.430
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1053,8 +1053,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T => constants.%i32.builtin
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %As.type => constants.%As.type.a6d
-// CHECK:STDOUT:   %Self => constants.%Self.c25
+// CHECK:STDOUT:   %As.type => constants.%As.type.ffe
+// CHECK:STDOUT:   %Self => constants.%Self.629
 // CHECK:STDOUT:   %As.Convert.type => constants.%As.Convert.type.378
 // CHECK:STDOUT:   %As.Convert => constants.%As.Convert.e51
 // CHECK:STDOUT:   %As.assoc_type => constants.%As.assoc_type.bc2
@@ -1069,20 +1069,20 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T => constants.%i32.builtin
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.6f5
-// CHECK:STDOUT:   %Self => constants.%Self.ec3
+// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.46d
+// CHECK:STDOUT:   %Self => constants.%Self.d53
 // CHECK:STDOUT:   %AddWith.Op.type => constants.%AddWith.Op.type.0b7
 // CHECK:STDOUT:   %AddWith.Op => constants.%AddWith.Op.9d6
 // CHECK:STDOUT:   %AddWith.assoc_type => constants.%AddWith.assoc_type.dff
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.7f1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AddWith.Op(constants.%T, constants.%Self.6c1) {
+// CHECK:STDOUT: specific @AddWith.Op(constants.%T, constants.%Self.98a) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.6d3
-// CHECK:STDOUT:   %Self => constants.%Self.6c1
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.030
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7fc
+// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.726
+// CHECK:STDOUT:   %Self => constants.%Self.98a
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.ec8
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a2e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @ImplicitAs(constants.%T) {
@@ -1093,20 +1093,20 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T => constants.%i32.builtin
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.61e
-// CHECK:STDOUT:   %Self => constants.%Self.d28
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.78a
+// CHECK:STDOUT:   %Self => constants.%Self.ea8
 // CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.059
 // CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.4d7
 // CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.398
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.6fd
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%T, constants.%Self.519) {
+// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%T, constants.%Self.ff0) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.d62
-// CHECK:STDOUT:   %Self => constants.%Self.519
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.40a
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.f3e
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.dc4
+// CHECK:STDOUT:   %Self => constants.%Self.ff0
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.51c
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.7ff
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1114,8 +1114,8 @@ var arr: array(i32, (1 as i32) + (2 as i32)) = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %T => Core.IntLiteral
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.2fd
-// CHECK:STDOUT:   %Self => constants.%Self.9ac
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.139
+// CHECK:STDOUT:   %Self => constants.%Self.f9c
 // CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.71e
 // CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.0e2
 // CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.959
diff --git a/toolchain/check/testdata/function/builtin/method.carbon b/toolchain/check/testdata/function/builtin/method.carbon
index b13a41b4626e..a0721ccd9e19 100644
--- a/toolchain/check/testdata/function/builtin/method.carbon
+++ b/toolchain/check/testdata/function/builtin/method.carbon
@@ -26,9 +26,9 @@ var arr: array(i32, (1 as i32).(I.F)(2));
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
@@ -45,52 +45,52 @@ var arr: array(i32, (1 as i32).(I.F)(2));
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.082: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.fee: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %.5c7: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.915: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
 // CHECK:STDOUT:   %i32.as.I.impl.F.bound: <bound method> = bound_method %int_1.5d2, %i32.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.f49: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.f49 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.c6f: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.4d7: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.4d7 [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.7ed: <bound method> = bound_method %int_3.822, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %array_type: type = array_type %int_3.1ba, %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.5d8: type = pattern_type %array_type [concrete]
@@ -106,12 +106,12 @@ var arr: array(i32, (1 as i32).(I.F)(2));
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/parts/as, As, loaded [concrete = constants.%As.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -141,30 +141,30 @@ var arr: array(i32, (1 as i32).(I.F)(2));
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_32.loc23_27: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc23_27: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %impl.elem0.loc23_24: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:     %impl.elem0.loc23_24: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:     %bound_method.loc23_24.1: <bound method> = bound_method %int_1, %impl.elem0.loc23_24 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn.loc23_24: <specific function> = specific_function %impl.elem0.loc23_24, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc23_24.2: <bound method> = bound_method %int_1, %specific_fn.loc23_24 [concrete = constants.%bound_method.082]
+// CHECK:STDOUT:     %bound_method.loc23_24.2: <bound method> = bound_method %int_1, %specific_fn.loc23_24 [concrete = constants.%bound_method.fee]
 // CHECK:STDOUT:     %Core.IntLiteral.as.As.impl.Convert.call: init %i32 = call %bound_method.loc23_24.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc23_24.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc23_24.2: %i32 = converted %int_1, %.loc23_24.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, %I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0.82e]
-// CHECK:STDOUT:     %impl.elem0.loc23_31: %.5c7 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%i32.as.I.impl.F]
+// CHECK:STDOUT:     %impl.elem0.loc23_31: %.915 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%i32.as.I.impl.F]
 // CHECK:STDOUT:     %bound_method.loc23_31: <bound method> = bound_method %.loc23_24.2, %impl.elem0.loc23_31 [concrete = constants.%i32.as.I.impl.F.bound]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem0.loc23_38: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0.loc23_38: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc23_38.1: <bound method> = bound_method %int_2, %impl.elem0.loc23_38 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn.loc23_38: <specific function> = specific_function %impl.elem0.loc23_38, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc23_38.2: <bound method> = bound_method %int_2, %specific_fn.loc23_38 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc23_38.2: <bound method> = bound_method %int_2, %specific_fn.loc23_38 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc23_38.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc23_38.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc23_38.2: %i32 = converted %int_2, %.loc23_38.1 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %i32.as.I.impl.F.call: init %i32 = call %bound_method.loc23_31(%.loc23_24.2, %.loc23_38.2) [concrete = constants.%int_3.822]
-// CHECK:STDOUT:     %impl.elem0.loc23_39: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
+// CHECK:STDOUT:     %impl.elem0.loc23_39: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
 // CHECK:STDOUT:     %bound_method.loc23_39.1: <bound method> = bound_method %i32.as.I.impl.F.call, %impl.elem0.loc23_39 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn.loc23_39: <specific function> = specific_function %impl.elem0.loc23_39, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc23_39.2: <bound method> = bound_method %i32.as.I.impl.F.call, %specific_fn.loc23_39 [concrete = constants.%bound_method.c6f]
+// CHECK:STDOUT:     %bound_method.loc23_39.2: <bound method> = bound_method %i32.as.I.impl.F.call, %specific_fn.loc23_39 [concrete = constants.%bound_method.7ed]
 // CHECK:STDOUT:     %.loc23_39.1: %i32 = value_of_initializer %i32.as.I.impl.F.call [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %.loc23_39.2: %i32 = converted %i32.as.I.impl.F.call, %.loc23_39.1 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.loc23_39.2(%.loc23_39.2) [concrete = constants.%int_3.1ba]
@@ -176,34 +176,34 @@ var arr: array(i32, (1 as i32).(I.F)(2));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %other.patt: @I.F.%pattern_type (%pattern_type.6de) = binding_pattern other [concrete]
-// CHECK:STDOUT:     %other.param_patt: @I.F.%pattern_type (%pattern_type.6de) = value_param_pattern %other.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @I.F.%pattern_type (%pattern_type.6de) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @I.F.%pattern_type (%pattern_type.6de) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %other.patt: @I.F.%pattern_type (%pattern_type.802) = binding_pattern other [concrete]
+// CHECK:STDOUT:     %other.param_patt: @I.F.%pattern_type (%pattern_type.802) = value_param_pattern %other.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @I.F.%pattern_type (%pattern_type.802) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @I.F.%pattern_type (%pattern_type.802) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc16_36: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:     %Self.as_type.loc16_36: type = facet_access_type %Self.ref.loc16_36 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:     %.loc16_36: type = converted %Self.ref.loc16_36, %Self.as_type.loc16_36 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref.loc16_14: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc16_14.2: type = facet_access_type %Self.ref.loc16_14 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc16_14.2: type = converted %Self.ref.loc16_14, %Self.as_type.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %Self.ref.loc16_36: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:     %Self.as_type.loc16_36: type = facet_access_type %Self.ref.loc16_36 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:     %.loc16_36: type = converted %Self.ref.loc16_36, %Self.as_type.loc16_36 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref.loc16_14: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc16_14.2: type = facet_access_type %Self.ref.loc16_14 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc16_14.2: type = converted %Self.ref.loc16_14, %Self.as_type.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70) = bind_name self, %self.param
-// CHECK:STDOUT:     %other.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70) = value_param call_param1
-// CHECK:STDOUT:     %.loc16_27.1: type = splice_block %.loc16_27.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref.loc16_27: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc16_27: type = facet_access_type %Self.ref.loc16_27 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc16_27.2: type = converted %Self.ref.loc16_27, %Self.as_type.loc16_27 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af) = bind_name self, %self.param
+// CHECK:STDOUT:     %other.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af) = value_param call_param1
+// CHECK:STDOUT:     %.loc16_27.1: type = splice_block %.loc16_27.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref.loc16_27: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc16_27: type = facet_access_type %Self.ref.loc16_27 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc16_27.2: type = converted %Self.ref.loc16_27, %Self.as_type.loc16_27 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %other: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70) = bind_name other, %other.param
-// CHECK:STDOUT:     %return.param: ref @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70) = return_slot %return.param
+// CHECK:STDOUT:     %other: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af) = bind_name other, %other.param
+// CHECK:STDOUT:     %return.param: ref @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0.82e]
 // CHECK:STDOUT:
@@ -246,19 +246,19 @@ var arr: array(i32, (1 as i32).(I.F)(2));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc16_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_14.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc16_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_14.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70), %other.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70)) -> @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.b70);
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af), %other.param: @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af)) -> @I.F.%Self.as_type.loc16_14.1 (%Self.as_type.4af);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @i32.as.I.impl.F(%self.param: %i32, %other.param: %i32) -> %i32 = "int.sadd";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%I.facet) {
diff --git a/toolchain/check/testdata/function/call/alias.carbon b/toolchain/check/testdata/function/call/alias.carbon
index 41e1615f77e0..058d09fe5281 100644
--- a/toolchain/check/testdata/function/call/alias.carbon
+++ b/toolchain/check/testdata/function/call/alias.carbon
@@ -31,10 +31,10 @@ fn Main() {
 // CHECK:STDOUT:   %Main.type: type = fn_type @Main [concrete]
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -91,8 +91,8 @@ fn Main() {
 // CHECK:STDOUT:     %.loc20_11.3: type = converted %.loc20_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %empty_tuple.type = bind_name b, %b.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/function/call/fail_return_type_mismatch.carbon b/toolchain/check/testdata/function/call/fail_return_type_mismatch.carbon
index bfe074ea12a8..10c74321bc8d 100644
--- a/toolchain/check/testdata/function/call/fail_return_type_mismatch.carbon
+++ b/toolchain/check/testdata/function/call/fail_return_type_mismatch.carbon
@@ -39,19 +39,19 @@ fn Run() {
 // CHECK:STDOUT:   %float.674: Core.FloatLiteral = float_literal_value 10e-1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.f22, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.cc3, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.674, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.d20: %f64.d77 = float_value 1 [concrete]
 // CHECK:STDOUT:   %Run.type: type = fn_type @Run [concrete]
@@ -61,10 +61,10 @@ fn Run() {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -78,8 +78,8 @@ fn Run() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Float: %Float.type = import_ref Core//prelude/parts/float, Float, loaded [concrete = constants.%Float.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.f22 = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.cc3 = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
@@ -106,7 +106,7 @@ fn Run() {
 // CHECK:STDOUT: fn @Foo() -> %f64.d77 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 10e-1 [concrete = constants.%float.674]
-// CHECK:STDOUT:   %impl.elem0: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc15_29.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_29.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -132,8 +132,8 @@ fn Run() {
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %i32 = bind_name x, %x.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %x.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/function/call/i32.carbon b/toolchain/check/testdata/function/call/i32.carbon
index bbd4081887a7..438b91f461aa 100644
--- a/toolchain/check/testdata/function/call/i32.carbon
+++ b/toolchain/check/testdata/function/call/i32.carbon
@@ -36,25 +36,25 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -67,8 +67,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -114,7 +114,7 @@ fn Main() {
 // CHECK:STDOUT:   %b.var: ref %i32 = var %b.var_patt
 // CHECK:STDOUT:   %Echo.ref: %Echo.type = name_ref Echo, file.%Echo.decl [concrete = constants.%Echo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc20_21.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc20_21.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -128,8 +128,8 @@ fn Main() {
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %i32 = bind_name b, %b.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc20_3: <bound method> = bound_method %b.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %b.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc20_3(%addr)
diff --git a/toolchain/check/testdata/function/call/more_param_ir.carbon b/toolchain/check/testdata/function/call/more_param_ir.carbon
index 5a2ae9013219..9fd80059517e 100644
--- a/toolchain/check/testdata/function/call/more_param_ir.carbon
+++ b/toolchain/check/testdata/function/call/more_param_ir.carbon
@@ -40,31 +40,31 @@ fn Main() {
 // CHECK:STDOUT:   %tuple.type.985: type = tuple_type (Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.a1c = tuple_value (%int_1.5d2) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_6.462: Core.IntLiteral = int_value 6 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.efa: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.351: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_6.e56: %i32 = int_value 6 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.438: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.a1c) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.c8e: %T.as.Destroy.impl.Op.type.438 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.68f: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.a1c) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.976: %T.as.Destroy.impl.Op.type.68f = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.0b7: type = ptr_type %tuple.type.a1c [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.c8e, @T.as.Destroy.impl.Op(%tuple.type.a1c) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.976, @T.as.Destroy.impl.Op(%tuple.type.a1c) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -77,8 +77,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -125,10 +125,10 @@ fn Main() {
 // CHECK:STDOUT:   %x.var: ref %tuple.type.a1c = var %x.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc18_22.1: %tuple.type.985 = tuple_literal (%int_1)
-// CHECK:STDOUT:   %impl.elem0.loc18: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_22.1: <bound method> = bound_method %int_1, %impl.elem0.loc18 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc18: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_22.1: <bound method> = bound_method %int_1, %impl.elem0.loc18 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc18: <specific function> = specific_function %impl.elem0.loc18, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_22.2: <bound method> = bound_method %int_1, %specific_fn.loc18 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc18_22.2: <bound method> = bound_method %int_1, %specific_fn.loc18 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18: init %i32 = call %bound_method.loc18_22.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_22.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_22.3: init %tuple.type.a1c = tuple_init (%.loc18_22.2) to %x.var [concrete = constants.%tuple]
@@ -147,16 +147,16 @@ fn Main() {
 // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access %x.ref, element0
 // CHECK:STDOUT:   %int_6: Core.IntLiteral = int_value 6 [concrete = constants.%int_6.462]
 // CHECK:STDOUT:   %.loc20_8: %i32 = bind_value %tuple.elem0
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_12.1: <bound method> = bound_method %int_6, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_12.1: <bound method> = bound_method %int_6, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_12.2: <bound method> = bound_method %int_6, %specific_fn.loc20 [concrete = constants.%bound_method.efa]
+// CHECK:STDOUT:   %bound_method.loc20_12.2: <bound method> = bound_method %int_6, %specific_fn.loc20 [concrete = constants.%bound_method.351]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_12.2(%int_6) [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %.loc20_12.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20 [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %.loc20_12.2: %i32 = converted %int_6, %.loc20_12.1 [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %Foo.call: init %empty_tuple.type = call %Foo.ref(%.loc20_8, %.loc20_12.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.c8e
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.c8e, @T.as.Destroy.impl.Op(constants.%tuple.type.a1c) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.976
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.976, @T.as.Destroy.impl.Op(constants.%tuple.type.a1c) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc18_3: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.0b7 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc18_3(%addr)
diff --git a/toolchain/check/testdata/function/call/params_one.carbon b/toolchain/check/testdata/function/call/params_one.carbon
index b87cbf6ac366..679f08d167d3 100644
--- a/toolchain/check/testdata/function/call/params_one.carbon
+++ b/toolchain/check/testdata/function/call/params_one.carbon
@@ -34,18 +34,18 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -59,8 +59,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -93,7 +93,7 @@ fn Main() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Foo.ref: %Foo.type = name_ref Foo, file.%Foo.decl [concrete = constants.%Foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc18_7.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc18_7.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/function/call/params_one_comma.carbon b/toolchain/check/testdata/function/call/params_one_comma.carbon
index ffaec6cc64f4..46a84cbbe97d 100644
--- a/toolchain/check/testdata/function/call/params_one_comma.carbon
+++ b/toolchain/check/testdata/function/call/params_one_comma.carbon
@@ -35,18 +35,18 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -60,8 +60,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -94,7 +94,7 @@ fn Main() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Foo.ref.loc18: %Foo.type = name_ref Foo, file.%Foo.decl [concrete = constants.%Foo]
 // CHECK:STDOUT:   %int_1.loc18: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc18: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc18: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc18_7.1: <bound method> = bound_method %int_1.loc18, %impl.elem0.loc18 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc18: <specific function> = specific_function %impl.elem0.loc18, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc18_7.2: <bound method> = bound_method %int_1.loc18, %specific_fn.loc18 [concrete = constants.%bound_method]
@@ -104,7 +104,7 @@ fn Main() {
 // CHECK:STDOUT:   %Foo.call.loc18: init %empty_tuple.type = call %Foo.ref.loc18(%.loc18_7.2)
 // CHECK:STDOUT:   %Foo.ref.loc19: %Foo.type = name_ref Foo, file.%Foo.decl [concrete = constants.%Foo]
 // CHECK:STDOUT:   %int_1.loc19: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc19: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc19: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc19_7.1: <bound method> = bound_method %int_1.loc19, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc19: <specific function> = specific_function %impl.elem0.loc19, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc19_7.2: <bound method> = bound_method %int_1.loc19, %specific_fn.loc19 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/function/call/params_two.carbon b/toolchain/check/testdata/function/call/params_two.carbon
index 2fb85a1a7584..ca5c9b2aa0de 100644
--- a/toolchain/check/testdata/function/call/params_two.carbon
+++ b/toolchain/check/testdata/function/call/params_two.carbon
@@ -35,22 +35,22 @@ fn Main() {
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -63,8 +63,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -106,17 +106,17 @@ fn Main() {
 // CHECK:STDOUT:   %Foo.ref: %Foo.type = name_ref Foo, file.%Foo.decl [concrete = constants.%Foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc18_7: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_7.1: <bound method> = bound_method %int_1, %impl.elem0.loc18_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc18_7: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_7.1: <bound method> = bound_method %int_1, %impl.elem0.loc18_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc18_7: <specific function> = specific_function %impl.elem0.loc18_7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_7.2: <bound method> = bound_method %int_1, %specific_fn.loc18_7 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc18_7.2: <bound method> = bound_method %int_1, %specific_fn.loc18_7 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_7: init %i32 = call %bound_method.loc18_7.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_7.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_7 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_7.2: %i32 = converted %int_1, %.loc18_7.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc18_10: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_10.1: <bound method> = bound_method %int_2, %impl.elem0.loc18_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc18_10: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_10.1: <bound method> = bound_method %int_2, %impl.elem0.loc18_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc18_10: <specific function> = specific_function %impl.elem0.loc18_10, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_10.2: <bound method> = bound_method %int_2, %specific_fn.loc18_10 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc18_10.2: <bound method> = bound_method %int_2, %specific_fn.loc18_10 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_10: init %i32 = call %bound_method.loc18_10.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_10.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_10 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_10.2: %i32 = converted %int_2, %.loc18_10.1 [concrete = constants.%int_2.ef8]
diff --git a/toolchain/check/testdata/function/call/params_two_comma.carbon b/toolchain/check/testdata/function/call/params_two_comma.carbon
index 51a9a24950aa..3beeb8207ce1 100644
--- a/toolchain/check/testdata/function/call/params_two_comma.carbon
+++ b/toolchain/check/testdata/function/call/params_two_comma.carbon
@@ -36,22 +36,22 @@ fn Main() {
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -64,8 +64,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -107,17 +107,17 @@ fn Main() {
 // CHECK:STDOUT:   %Foo.ref.loc18: %Foo.type = name_ref Foo, file.%Foo.decl [concrete = constants.%Foo]
 // CHECK:STDOUT:   %int_1.loc18: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc18: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc18_7: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_7.1: <bound method> = bound_method %int_1.loc18, %impl.elem0.loc18_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc18_7: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_7.1: <bound method> = bound_method %int_1.loc18, %impl.elem0.loc18_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc18_7: <specific function> = specific_function %impl.elem0.loc18_7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_7.2: <bound method> = bound_method %int_1.loc18, %specific_fn.loc18_7 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc18_7.2: <bound method> = bound_method %int_1.loc18, %specific_fn.loc18_7 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_7: init %i32 = call %bound_method.loc18_7.2(%int_1.loc18) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_7.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_7 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_7.2: %i32 = converted %int_1.loc18, %.loc18_7.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc18_10: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_10.1: <bound method> = bound_method %int_2.loc18, %impl.elem0.loc18_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc18_10: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_10.1: <bound method> = bound_method %int_2.loc18, %impl.elem0.loc18_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc18_10: <specific function> = specific_function %impl.elem0.loc18_10, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_10.2: <bound method> = bound_method %int_2.loc18, %specific_fn.loc18_10 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc18_10.2: <bound method> = bound_method %int_2.loc18, %specific_fn.loc18_10 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_10: init %i32 = call %bound_method.loc18_10.2(%int_2.loc18) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_10.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_10 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_10.2: %i32 = converted %int_2.loc18, %.loc18_10.1 [concrete = constants.%int_2.ef8]
@@ -125,17 +125,17 @@ fn Main() {
 // CHECK:STDOUT:   %Foo.ref.loc19: %Foo.type = name_ref Foo, file.%Foo.decl [concrete = constants.%Foo]
 // CHECK:STDOUT:   %int_1.loc19: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc19: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc19_7: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc19_7.1: <bound method> = bound_method %int_1.loc19, %impl.elem0.loc19_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc19_7: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc19_7.1: <bound method> = bound_method %int_1.loc19, %impl.elem0.loc19_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc19_7: <specific function> = specific_function %impl.elem0.loc19_7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc19_7.2: <bound method> = bound_method %int_1.loc19, %specific_fn.loc19_7 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc19_7.2: <bound method> = bound_method %int_1.loc19, %specific_fn.loc19_7 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_7: init %i32 = call %bound_method.loc19_7.2(%int_1.loc19) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_7.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_7 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_7.2: %i32 = converted %int_1.loc19, %.loc19_7.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc19_10: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc19_10.1: <bound method> = bound_method %int_2.loc19, %impl.elem0.loc19_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc19_10: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc19_10.1: <bound method> = bound_method %int_2.loc19, %impl.elem0.loc19_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc19_10: <specific function> = specific_function %impl.elem0.loc19_10, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc19_10.2: <bound method> = bound_method %int_2.loc19, %specific_fn.loc19_10 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc19_10.2: <bound method> = bound_method %int_2.loc19, %specific_fn.loc19_10 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_10: init %i32 = call %bound_method.loc19_10.2(%int_2.loc19) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc19_10.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_10 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc19_10.2: %i32 = converted %int_2.loc19, %.loc19_10.1 [concrete = constants.%int_2.ef8]
diff --git a/toolchain/check/testdata/function/call/prefer_unqualified_lookup.carbon b/toolchain/check/testdata/function/call/prefer_unqualified_lookup.carbon
index 5ef463b99bdb..3565d7471e4f 100644
--- a/toolchain/check/testdata/function/call/prefer_unqualified_lookup.carbon
+++ b/toolchain/check/testdata/function/call/prefer_unqualified_lookup.carbon
@@ -48,14 +48,14 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT:   %Inner.G: %Inner.G.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.3a7: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%F) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.363: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%F) [symbolic]
 // CHECK:STDOUT:   %ptr.2b5: type = ptr_type %Inner [symbolic]
 // CHECK:STDOUT:   %pattern_type.2df: type = pattern_type %ptr.2b5 [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%F) [symbolic]
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.95a: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%F) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.d1e: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%F) [symbolic]
 // CHECK:STDOUT:   %ptr.955: type = ptr_type %Class [symbolic]
 // CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %ptr.955 [symbolic]
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%F) [symbolic]
@@ -63,18 +63,18 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Inner.F.specific_fn: <specific function> = specific_function %Inner.F, @Inner.F(%F) [symbolic]
@@ -91,8 +91,8 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -123,7 +123,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT: generic impl @Inner.as.Destroy.impl(@Class.%F.loc5_13.2: type) {
 // CHECK:STDOUT:   %F: type = bind_symbolic_name F, 0 [symbolic = %F (constants.%F)]
 // CHECK:STDOUT:   %Inner: type = class_type @Inner, @Inner(%F) [symbolic = %Inner (constants.%Inner)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%F) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.3a7)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%F) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.363)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%F) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type)]
@@ -152,7 +152,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT: generic impl @Class.as.Destroy.impl(@Class.%F.loc5_13.2: type) {
 // CHECK:STDOUT:   %F: type = bind_symbolic_name F, 0 [symbolic = %F (constants.%F)]
 // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%F) [symbolic = %Class (constants.%Class)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%F) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Class.%Destroy.impl_witness_table, @Class.as.Destroy.impl(%F) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Class.as.Destroy.impl.Op.type: type = fn_type @Class.as.Destroy.impl.Op, @Class.as.Destroy.impl(%F) [symbolic = %Class.as.Destroy.impl.Op.type (constants.%Class.as.Destroy.impl.Op.type)]
@@ -189,7 +189,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class [symbolic = @Class.as.Destroy.impl.%Class (constants.%Class)]
 // CHECK:STDOUT:     impl_decl @Class.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Class.as.Destroy.impl.%Class.as.Destroy.impl.Op.decl), @Class.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%F) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.95a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Class.as.Destroy.impl(constants.%F) [symbolic = @Class.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d1e)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -229,7 +229,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Inner [symbolic = @Inner.as.Destroy.impl.%Inner (constants.%Inner)]
 // CHECK:STDOUT:     impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%F) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.3a7)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%F) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.363)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -246,7 +246,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT:   fn() -> %i32 {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc8_29.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc8_29.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -323,7 +323,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl(constants.%F) {
 // CHECK:STDOUT:   %F => constants.%F
 // CHECK:STDOUT:   %Inner => constants.%Inner
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.3a7
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.363
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%F) {
@@ -336,7 +336,7 @@ fn Class(F:! type).Inner.G() -> i32 { return F(); }
 // CHECK:STDOUT: specific @Class.as.Destroy.impl(constants.%F) {
 // CHECK:STDOUT:   %F => constants.%F
 // CHECK:STDOUT:   %Class => constants.%Class
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.95a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d1e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Class.as.Destroy.impl.Op(constants.%F) {
diff --git a/toolchain/check/testdata/function/call/return_implicit.carbon b/toolchain/check/testdata/function/call/return_implicit.carbon
index db85d89d65f0..1d8f678cb9b4 100644
--- a/toolchain/check/testdata/function/call/return_implicit.carbon
+++ b/toolchain/check/testdata/function/call/return_implicit.carbon
@@ -29,10 +29,10 @@ fn Main() {
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -75,8 +75,8 @@ fn Main() {
 // CHECK:STDOUT:     %.loc19_11.3: type = converted %.loc19_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %empty_tuple.type = bind_name b, %b.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/function/declaration/fail_import_incomplete_return.carbon b/toolchain/check/testdata/function/declaration/fail_import_incomplete_return.carbon
index 773c8ec7ab22..4ed7e6bb7ec8 100644
--- a/toolchain/check/testdata/function/declaration/fail_import_incomplete_return.carbon
+++ b/toolchain/check/testdata/function/declaration/fail_import_incomplete_return.carbon
@@ -242,7 +242,7 @@ fn CallFAndGIncomplete() {
 // CHECK:STDOUT:   %ReturnDUsed.type: type = fn_type @ReturnDUsed [concrete]
 // CHECK:STDOUT:   %ReturnDUsed: %ReturnDUsed.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b6f: <witness> = impl_witness imports.%Destroy.impl_witness_table.cd7 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.78c: <witness> = impl_witness imports.%Destroy.impl_witness_table.4a8 [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op: %D.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D.b3dde2.1 [concrete]
@@ -264,13 +264,13 @@ fn CallFAndGIncomplete() {
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//incomplete_return, loc37_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.cabe25.1 = import_ref Main//incomplete_return, inst20 [no loc], unloaded
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.7ba: <witness> = import_ref Main//incomplete_return, loc37_9, loaded [concrete = constants.%Destroy.impl_witness.b6f]
+// CHECK:STDOUT:   %Main.import_ref.580: <witness> = import_ref Main//incomplete_return, loc37_9, loaded [concrete = constants.%Destroy.impl_witness.78c]
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//incomplete_return, loc37_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.cabe25.2 = import_ref Main//incomplete_return, inst20 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.130: type = import_ref Main//incomplete_return, loc37_9, loaded [concrete = constants.%D.b3dde2.1]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//incomplete_return, inst67 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.283: %D.as.Destroy.impl.Op.type = import_ref Main//incomplete_return, loc37_9, loaded [concrete = constants.%D.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.cd7 = impl_witness_table (%Main.import_ref.283), @D.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//incomplete_return, inst67 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.54e: %D.as.Destroy.impl.Op.type = import_ref Main//incomplete_return, loc37_9, loaded [concrete = constants.%D.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.4a8 = impl_witness_table (%Main.import_ref.54e), @D.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -290,9 +290,9 @@ fn CallFAndGIncomplete() {
 // CHECK:STDOUT:   %CallFAndGIncomplete.decl: %CallFAndGIncomplete.type = fn_decl @CallFAndGIncomplete [concrete = constants.%CallFAndGIncomplete] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%Main.import_ref.130 as imports.%Main.import_ref.cb9 [from "fail_incomplete_return.carbon"] {
+// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%Main.import_ref.130 as imports.%Main.import_ref.063 [from "fail_incomplete_return.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.7ba
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.580
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C [from "fail_incomplete_return.carbon"];
diff --git a/toolchain/check/testdata/function/declaration/import.carbon b/toolchain/check/testdata/function/declaration/import.carbon
index 9bedbfeefb83..bb113633ca07 100644
--- a/toolchain/check/testdata/function/declaration/import.carbon
+++ b/toolchain/check/testdata/function/declaration/import.carbon
@@ -475,18 +475,18 @@ import library "extern_api";
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.c: type = struct_type {.c: %i32} [concrete]
@@ -520,8 +520,8 @@ import library "extern_api";
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -610,7 +610,7 @@ import library "extern_api";
 // CHECK:STDOUT:   assign file.%a.var, %A.call
 // CHECK:STDOUT:   %B.ref: %B.type = name_ref B, imports.%Main.B [concrete = constants.%B]
 // CHECK:STDOUT:   %int_1.loc7: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc7_16.1: <bound method> = bound_method %int_1.loc7, %impl.elem0.loc7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_16.2: <bound method> = bound_method %int_1.loc7, %specific_fn.loc7 [concrete = constants.%bound_method]
@@ -622,7 +622,7 @@ import library "extern_api";
 // CHECK:STDOUT:   %C.ref: %C.type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:   %int_1.loc8: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc8_25.1: %tuple.type.985 = tuple_literal (%int_1.loc8)
-// CHECK:STDOUT:   %impl.elem0.loc8: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_25.1: <bound method> = bound_method %int_1.loc8, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_25.2: <bound method> = bound_method %int_1.loc8, %specific_fn.loc8 [concrete = constants.%bound_method]
@@ -670,18 +670,18 @@ import library "extern_api";
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %tuple.type.985: type = tuple_type (Core.IntLiteral) [concrete]
@@ -701,8 +701,8 @@ import library "extern_api";
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -821,7 +821,7 @@ import library "extern_api";
 // CHECK:STDOUT:   assign file.%a.var, %A.call
 // CHECK:STDOUT:   %B.ref: %B.type = name_ref B, file.%B.decl [concrete = constants.%B]
 // CHECK:STDOUT:   %int_1.loc53: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc53: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc53: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc53_16.1: <bound method> = bound_method %int_1.loc53, %impl.elem0.loc53 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc53: <specific function> = specific_function %impl.elem0.loc53, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc53_16.2: <bound method> = bound_method %int_1.loc53, %specific_fn.loc53 [concrete = constants.%bound_method]
@@ -833,7 +833,7 @@ import library "extern_api";
 // CHECK:STDOUT:   %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %int_1.loc54: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc54_25.1: %tuple.type.985 = tuple_literal (%int_1.loc54)
-// CHECK:STDOUT:   %impl.elem0.loc54: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc54: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc54_25.1: <bound method> = bound_method %int_1.loc54, %impl.elem0.loc54 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc54: <specific function> = specific_function %impl.elem0.loc54, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc54_25.2: <bound method> = bound_method %int_1.loc54, %specific_fn.loc54 [concrete = constants.%bound_method]
@@ -881,18 +881,18 @@ import library "extern_api";
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9ba: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.cf3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.6da: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e34: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e36, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.9ba = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e34) [concrete]
-// CHECK:STDOUT:   %.d6a: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ed2: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ba4, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.cf3 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed2) [concrete]
+// CHECK:STDOUT:   %.2c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %tuple.type.985: type = tuple_type (Core.IntLiteral) [concrete]
@@ -912,8 +912,8 @@ import library "extern_api";
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a86c: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e36 = impl_witness_table (%Core.import_ref.a86c), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7bb: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ba4 = impl_witness_table (%Core.import_ref.7bb), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1032,7 +1032,7 @@ import library "extern_api";
 // CHECK:STDOUT:   assign file.%a.var, %A.call
 // CHECK:STDOUT:   %B.ref: %B.type = name_ref B, file.%B.decl [concrete = constants.%B]
 // CHECK:STDOUT:   %int_1.loc13: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc13: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
+// CHECK:STDOUT:   %impl.elem0.loc13: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
 // CHECK:STDOUT:   %bound_method.loc13_16.1: <bound method> = bound_method %int_1.loc13, %impl.elem0.loc13 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc13: <specific function> = specific_function %impl.elem0.loc13, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_16.2: <bound method> = bound_method %int_1.loc13, %specific_fn.loc13 [concrete = constants.%bound_method]
@@ -1044,7 +1044,7 @@ import library "extern_api";
 // CHECK:STDOUT:   %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %int_1.loc14: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc14_25.1: %tuple.type.985 = tuple_literal (%int_1.loc14)
-// CHECK:STDOUT:   %impl.elem0.loc14: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
+// CHECK:STDOUT:   %impl.elem0.loc14: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
 // CHECK:STDOUT:   %bound_method.loc14_25.1: <bound method> = bound_method %int_1.loc14, %impl.elem0.loc14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc14: <specific function> = specific_function %impl.elem0.loc14, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc14_25.2: <bound method> = bound_method %int_1.loc14, %specific_fn.loc14 [concrete = constants.%bound_method]
@@ -1082,18 +1082,18 @@ import library "extern_api";
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.c: type = struct_type {.c: %i32} [concrete]
@@ -1127,8 +1127,8 @@ import library "extern_api";
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1217,7 +1217,7 @@ import library "extern_api";
 // CHECK:STDOUT:   assign file.%a.var, %A.call
 // CHECK:STDOUT:   %B.ref: %B.type = name_ref B, imports.%Main.B [concrete = constants.%B]
 // CHECK:STDOUT:   %int_1.loc53: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc53: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc53: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc53_16.1: <bound method> = bound_method %int_1.loc53, %impl.elem0.loc53 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc53: <specific function> = specific_function %impl.elem0.loc53, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc53_16.2: <bound method> = bound_method %int_1.loc53, %specific_fn.loc53 [concrete = constants.%bound_method]
@@ -1229,7 +1229,7 @@ import library "extern_api";
 // CHECK:STDOUT:   %C.ref: %C.type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:   %int_1.loc54: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc54_25.1: %tuple.type.985 = tuple_literal (%int_1.loc54)
-// CHECK:STDOUT:   %impl.elem0.loc54: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc54: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc54_25.1: <bound method> = bound_method %int_1.loc54, %impl.elem0.loc54 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc54: <specific function> = specific_function %impl.elem0.loc54, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc54_25.2: <bound method> = bound_method %int_1.loc54, %specific_fn.loc54 [concrete = constants.%bound_method]
@@ -1267,18 +1267,18 @@ import library "extern_api";
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.c: type = struct_type {.c: %i32} [concrete]
@@ -1312,8 +1312,8 @@ import library "extern_api";
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1402,7 +1402,7 @@ import library "extern_api";
 // CHECK:STDOUT:   assign file.%a.var, %A.call
 // CHECK:STDOUT:   %B.ref: %B.type = name_ref B, imports.%Main.B [concrete = constants.%B]
 // CHECK:STDOUT:   %int_1.loc53: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc53: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc53: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc53_16.1: <bound method> = bound_method %int_1.loc53, %impl.elem0.loc53 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc53: <specific function> = specific_function %impl.elem0.loc53, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc53_16.2: <bound method> = bound_method %int_1.loc53, %specific_fn.loc53 [concrete = constants.%bound_method]
@@ -1414,7 +1414,7 @@ import library "extern_api";
 // CHECK:STDOUT:   %C.ref: %C.type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:   %int_1.loc54: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc54_25.1: %tuple.type.985 = tuple_literal (%int_1.loc54)
-// CHECK:STDOUT:   %impl.elem0.loc54: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc54: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc54_25.1: <bound method> = bound_method %int_1.loc54, %impl.elem0.loc54 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc54: <specific function> = specific_function %impl.elem0.loc54, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc54_25.2: <bound method> = bound_method %int_1.loc54, %specific_fn.loc54 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/function/definition/fail_local_decl.carbon b/toolchain/check/testdata/function/definition/fail_local_decl.carbon
index 88afab26c9bd..dffce768ac0e 100644
--- a/toolchain/check/testdata/function/definition/fail_local_decl.carbon
+++ b/toolchain/check/testdata/function/definition/fail_local_decl.carbon
@@ -103,10 +103,10 @@ fn F() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -149,13 +149,13 @@ fn F() {
 // CHECK:STDOUT:     %.loc14_21.3: type = converted %.loc14_21.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %w: ref %empty_struct_type = bind_name w, %w.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %w.var, constants.%T.as.Destroy.impl.Op.d5a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %w.var, constants.%T.as.Destroy.impl.Op.24b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc14: <bound method> = bound_method %w.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc14: %ptr.c28 = addr_of %w.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc14: init %empty_tuple.type = call %bound_method.loc14(%addr.loc14)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.d5a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.24b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc9: %ptr.c28 = addr_of %v.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9)
diff --git a/toolchain/check/testdata/function/definition/import.carbon b/toolchain/check/testdata/function/definition/import.carbon
index d037dd4822ad..bc48df743211 100644
--- a/toolchain/check/testdata/function/definition/import.carbon
+++ b/toolchain/check/testdata/function/definition/import.carbon
@@ -263,18 +263,18 @@ fn D() {}
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.c: type = struct_type {.c: %i32} [concrete]
@@ -299,8 +299,8 @@ fn D() {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -362,7 +362,7 @@ fn D() {}
 // CHECK:STDOUT:   assign file.%a.var, %A.call
 // CHECK:STDOUT:   %B.ref: %B.type = name_ref B, imports.%Main.B [concrete = constants.%B]
 // CHECK:STDOUT:   %int_1.loc7: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc7_16.1: <bound method> = bound_method %int_1.loc7, %impl.elem0.loc7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_16.2: <bound method> = bound_method %int_1.loc7, %specific_fn.loc7 [concrete = constants.%bound_method]
@@ -374,7 +374,7 @@ fn D() {}
 // CHECK:STDOUT:   %C.ref: %C.type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:   %int_1.loc8: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc8_25.1: %tuple.type.985 = tuple_literal (%int_1.loc8)
-// CHECK:STDOUT:   %impl.elem0.loc8: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_25.1: <bound method> = bound_method %int_1.loc8, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_25.2: <bound method> = bound_method %int_1.loc8, %specific_fn.loc8 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/function/generic/call_method_on_generic_facet.carbon b/toolchain/check/testdata/function/generic/call_method_on_generic_facet.carbon
index 4a9e190eb7ab..3fcf7a6c9dc9 100644
--- a/toolchain/check/testdata/function/generic/call_method_on_generic_facet.carbon
+++ b/toolchain/check/testdata/function/generic/call_method_on_generic_facet.carbon
@@ -47,8 +47,8 @@ fn G() {
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.91ccba.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
-// CHECK:STDOUT:   %Self.dee8d8.1: %Generic.type.91ccba.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.1: type = facet_type <@Generic, @Generic(%Scalar)> [symbolic]
+// CHECK:STDOUT:   %Self.f48852.1: %Generic.type.4045f4.1 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f439a9.1: type = fn_type @Generic.F, @Generic(%Scalar) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2d67.1: %Generic.F.type.f439a9.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd877.1: type = assoc_entity_type @Generic, @Generic(%Scalar) [symbolic]
@@ -56,7 +56,7 @@ fn G() {
 // CHECK:STDOUT:   %GenericParam: type = class_type @GenericParam [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.884: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e7: <witness> = impl_witness @GenericParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.f73: type = ptr_type %GenericParam [concrete]
 // CHECK:STDOUT:   %pattern_type.7c3: type = pattern_type %ptr.f73 [concrete]
 // CHECK:STDOUT:   %GenericParam.as.Destroy.impl.Op.type: type = fn_type @GenericParam.as.Destroy.impl.Op [concrete]
@@ -64,13 +64,13 @@ fn G() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ImplsGeneric: type = class_type @ImplsGeneric [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9ca: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.813: <witness> = impl_witness @ImplsGeneric.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.011: type = ptr_type %ImplsGeneric [concrete]
 // CHECK:STDOUT:   %pattern_type.2db: type = pattern_type %ptr.011 [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op.type: type = fn_type @ImplsGeneric.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Destroy.impl.Op: %ImplsGeneric.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.769: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
-// CHECK:STDOUT:   %Self.f84: %Generic.type.769 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.cfe: type = facet_type <@Generic, @Generic(%GenericParam)> [concrete]
+// CHECK:STDOUT:   %Self.b8f: %Generic.type.cfe = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.4cf: type = fn_type @Generic.F, @Generic(%GenericParam) [concrete]
 // CHECK:STDOUT:   %Generic.F.118: %Generic.F.type.4cf = struct_value () [concrete]
 // CHECK:STDOUT:   %Generic.assoc_type.713: type = assoc_entity_type @Generic, @Generic(%GenericParam) [concrete]
@@ -78,9 +78,9 @@ fn G() {
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness file.%Generic.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F.type: type = fn_type @ImplsGeneric.as.Generic.impl.F [concrete]
 // CHECK:STDOUT:   %ImplsGeneric.as.Generic.impl.F: %ImplsGeneric.as.Generic.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.facet.8ff: %Generic.type.769 = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
+// CHECK:STDOUT:   %Generic.facet.924: %Generic.type.cfe = facet_value %ImplsGeneric, (%Generic.impl_witness) [concrete]
 // CHECK:STDOUT:   %Other.type: type = facet_type <@Other> [concrete]
-// CHECK:STDOUT:   %Self.807: %Other.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.939: %Other.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Other.G.type: type = fn_type @Other.G [concrete]
 // CHECK:STDOUT:   %Other.G: %Other.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Other.assoc_type: type = assoc_entity_type @Other [concrete]
@@ -90,29 +90,29 @@ fn G() {
 // CHECK:STDOUT:   %ImplsGeneric.as.Other.impl.G: %ImplsGeneric.as.Other.impl.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Other.facet: %Other.type = facet_value %ImplsGeneric, (%Other.impl_witness) [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Generic.type.91ccba.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
-// CHECK:STDOUT:   %U: %Generic.type.91ccba.2 = bind_symbolic_name U, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.80f: type = pattern_type %Generic.type.91ccba.2 [symbolic]
+// CHECK:STDOUT:   %Generic.type.4045f4.2: type = facet_type <@Generic, @Generic(%T)> [symbolic]
+// CHECK:STDOUT:   %U: %Generic.type.4045f4.2 = bind_symbolic_name U, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.3c6: type = pattern_type %Generic.type.4045f4.2 [symbolic]
 // CHECK:STDOUT:   %CallGenericMethod.type: type = fn_type @CallGenericMethod [concrete]
 // CHECK:STDOUT:   %CallGenericMethod: %CallGenericMethod.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.dee8d8.2: %Generic.type.91ccba.2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.f48852.2: %Generic.type.4045f4.2 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.F.type.f439a9.2: type = fn_type @Generic.F, @Generic(%T) [symbolic]
 // CHECK:STDOUT:   %Generic.F.8a2d67.2: %Generic.F.type.f439a9.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Generic.assoc_type.0fd877.2: type = assoc_entity_type @Generic, @Generic(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.2966cb.2: %Generic.assoc_type.0fd877.2 = assoc_entity element0, @Generic.%Generic.F.decl [symbolic]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Generic.type.91ccba.2 [symbolic]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Generic.type.4045f4.2 [symbolic]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
 // CHECK:STDOUT:   %Generic.lookup_impl_witness: <witness> = lookup_impl_witness %U, @Generic, @Generic(%T) [symbolic]
-// CHECK:STDOUT:   %Generic.facet.680: %Generic.type.91ccba.2 = facet_value %U.as_type, (%Generic.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.177: type = fn_type_with_self_type %Generic.F.type.f439a9.2, %Generic.facet.680 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.177 = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Generic.F(%T, %Generic.facet.680) [symbolic]
+// CHECK:STDOUT:   %Generic.facet.049: %Generic.type.4045f4.2 = facet_value %U.as_type, (%Generic.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.1bd: type = fn_type_with_self_type %Generic.F.type.f439a9.2, %Generic.facet.049 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.1bd = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Generic.F(%T, %Generic.facet.049) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %pattern_type.ded: type = pattern_type %Generic.type.769 [concrete]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet.8ff) [concrete]
-// CHECK:STDOUT:   %complete_type.997: <witness> = complete_type_witness %Generic.type.769 [concrete]
-// CHECK:STDOUT:   %.3e6: type = fn_type_with_self_type %Generic.F.type.4cf, %Generic.facet.8ff [concrete]
+// CHECK:STDOUT:   %pattern_type.bd9: type = pattern_type %Generic.type.cfe [concrete]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod, @CallGenericMethod(%GenericParam, %Generic.facet.924) [concrete]
+// CHECK:STDOUT:   %complete_type.10d: <witness> = complete_type_witness %Generic.type.cfe [concrete]
+// CHECK:STDOUT:   %.e21: type = fn_type_with_self_type %Generic.F.type.4cf, %Generic.facet.924 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -147,7 +147,7 @@ fn G() {
 // CHECK:STDOUT:     %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:     %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:     %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
-// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.769]
+// CHECK:STDOUT:     %Generic.type: type = facet_type <@Generic, @Generic(constants.%GenericParam)> [concrete = constants.%Generic.type.cfe]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Generic.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Generic.impl.%ImplsGeneric.as.Generic.impl.F.decl), @ImplsGeneric.as.Generic.impl [concrete]
 // CHECK:STDOUT:   %Generic.impl_witness: <witness> = impl_witness %Generic.impl_witness_table [concrete = constants.%Generic.impl_witness]
@@ -160,17 +160,17 @@ fn G() {
 // CHECK:STDOUT:   %Other.impl_witness: <witness> = impl_witness %Other.impl_witness_table [concrete = constants.%Other.impl_witness]
 // CHECK:STDOUT:   %CallGenericMethod.decl: %CallGenericMethod.type = fn_decl @CallGenericMethod [concrete = constants.%CallGenericMethod] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type (%pattern_type.80f) = symbolic_binding_pattern U, 1 [concrete]
+// CHECK:STDOUT:     %U.patt: @CallGenericMethod.%pattern_type (%pattern_type.3c6) = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc33_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc33_22.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc33: type = splice_block %Generic.type.loc33_45.2 [symbolic = %Generic.type.loc33_45.1 (constants.%Generic.type.91ccba.2)] {
+// CHECK:STDOUT:     %.loc33: type = splice_block %Generic.type.loc33_45.2 [symbolic = %Generic.type.loc33_45.1 (constants.%Generic.type.4045f4.2)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %T.ref: type = name_ref T, %T.loc33_22.2 [symbolic = %T.loc33_22.1 (constants.%T)]
-// CHECK:STDOUT:       %Generic.type.loc33_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc33_45.1 (constants.%Generic.type.91ccba.2)]
+// CHECK:STDOUT:       %Generic.type.loc33_45.2: type = facet_type <@Generic, @Generic(constants.%T)> [symbolic = %Generic.type.loc33_45.1 (constants.%Generic.type.4045f4.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc33_32.2: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc33_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc33_32.2: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc33_32.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
 // CHECK:STDOUT: }
@@ -179,15 +179,15 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc15_19.1: type = bind_symbolic_name Scalar, 0 [symbolic = %Scalar.loc15_19.1 (constants.%Scalar)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc15_19.1)> [symbolic = %Generic.type (constants.%Generic.type.91ccba.1)]
-// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee8d8.1)]
+// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%Scalar.loc15_19.1)> [symbolic = %Generic.type (constants.%Generic.type.4045f4.1)]
+// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48852.1)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%Scalar.loc15_19.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f439a9.1)]
 // CHECK:STDOUT:   %Generic.F: @Generic.%Generic.F.type (%Generic.F.type.f439a9.1) = struct_value () [symbolic = %Generic.F (constants.%Generic.F.8a2d67.1)]
 // CHECK:STDOUT:   %Generic.assoc_type: type = assoc_entity_type @Generic, @Generic(%Scalar.loc15_19.1) [symbolic = %Generic.assoc_type (constants.%Generic.assoc_type.0fd877.1)]
 // CHECK:STDOUT:   %assoc0.loc16_9.2: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd877.1) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc16_9.2 (constants.%assoc0.2966cb.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee8d8.1)]
+// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48852.1)]
 // CHECK:STDOUT:     %Generic.F.decl: @Generic.%Generic.F.type (%Generic.F.type.f439a9.1) = fn_decl @Generic.F [symbolic = @Generic.%Generic.F (constants.%Generic.F.8a2d67.1)] {} {}
 // CHECK:STDOUT:     %assoc0.loc16_9.1: @Generic.%Generic.assoc_type (%Generic.assoc_type.0fd877.1) = assoc_entity element0, %Generic.F.decl [symbolic = %assoc0.loc16_9.2 (constants.%assoc0.2966cb.1)]
 // CHECK:STDOUT:
@@ -199,7 +199,7 @@ fn G() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Other {
-// CHECK:STDOUT:   %Self: %Other.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.807]
+// CHECK:STDOUT:   %Self: %Other.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.939]
 // CHECK:STDOUT:   %Other.G.decl: %Other.G.type = fn_decl @Other.G [concrete = constants.%Other.G] {} {}
 // CHECK:STDOUT:   %assoc0: %Other.assoc_type = assoc_entity element0, %Other.G.decl [concrete = constants.%assoc0.25d]
 // CHECK:STDOUT:
@@ -261,7 +261,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%GenericParam [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   impl_decl @GenericParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@GenericParam.as.Destroy.impl.%GenericParam.as.Destroy.impl.Op.decl), @GenericParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.884]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7e7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -273,7 +273,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ImplsGeneric [concrete = constants.%ImplsGeneric]
 // CHECK:STDOUT:   impl_decl @ImplsGeneric.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ImplsGeneric.as.Destroy.impl.%ImplsGeneric.as.Destroy.impl.Op.decl), @ImplsGeneric.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9ca]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.813]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -281,7 +281,7 @@ fn G() {
 // CHECK:STDOUT:   .Self = constants.%ImplsGeneric
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc15_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.91ccba.1)) {
+// CHECK:STDOUT: generic fn @Generic.F(@Generic.%Scalar.loc15_19.2: type, @Generic.%Self.1: @Generic.%Generic.type (%Generic.type.4045f4.1)) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -300,11 +300,11 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @ImplsGeneric.as.Other.impl.G();
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc33_22.2: type, %U.loc33_32.2: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.91ccba.2)) {
+// CHECK:STDOUT: generic fn @CallGenericMethod(%T.loc33_22.2: type, %U.loc33_32.2: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.4045f4.2)) {
 // CHECK:STDOUT:   %T.loc33_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc33_22.1 (constants.%T)]
-// CHECK:STDOUT:   %Generic.type.loc33_45.1: type = facet_type <@Generic, @Generic(%T.loc33_22.1)> [symbolic = %Generic.type.loc33_45.1 (constants.%Generic.type.91ccba.2)]
-// CHECK:STDOUT:   %U.loc33_32.1: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.91ccba.2) = bind_symbolic_name U, 1 [symbolic = %U.loc33_32.1 (constants.%U)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc33_45.1 [symbolic = %pattern_type (constants.%pattern_type.80f)]
+// CHECK:STDOUT:   %Generic.type.loc33_45.1: type = facet_type <@Generic, @Generic(%T.loc33_22.1)> [symbolic = %Generic.type.loc33_45.1 (constants.%Generic.type.4045f4.2)]
+// CHECK:STDOUT:   %U.loc33_32.1: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.4045f4.2) = bind_symbolic_name U, 1 [symbolic = %U.loc33_32.1 (constants.%U)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Generic.type.loc33_45.1 [symbolic = %pattern_type (constants.%pattern_type.3c6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Generic.type.loc33_45.1 [symbolic = %require_complete (constants.%require_complete)]
@@ -313,20 +313,20 @@ fn G() {
 // CHECK:STDOUT:   %U.as_type.loc34_4.2: type = facet_access_type %U.loc33_32.1 [symbolic = %U.as_type.loc34_4.2 (constants.%U.as_type)]
 // CHECK:STDOUT:   %Generic.lookup_impl_witness: <witness> = lookup_impl_witness %U.loc33_32.1, @Generic, @Generic(%T.loc33_22.1) [symbolic = %Generic.lookup_impl_witness (constants.%Generic.lookup_impl_witness)]
 // CHECK:STDOUT:   %Generic.F.type: type = fn_type @Generic.F, @Generic(%T.loc33_22.1) [symbolic = %Generic.F.type (constants.%Generic.F.type.f439a9.2)]
-// CHECK:STDOUT:   %Generic.facet: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.91ccba.2) = facet_value %U.as_type.loc34_4.2, (%Generic.lookup_impl_witness) [symbolic = %Generic.facet (constants.%Generic.facet.680)]
-// CHECK:STDOUT:   %.loc34_4.3: type = fn_type_with_self_type %Generic.F.type, %Generic.facet [symbolic = %.loc34_4.3 (constants.%.177)]
-// CHECK:STDOUT:   %impl.elem0.loc34_4.2: @CallGenericMethod.%.loc34_4.3 (%.177) = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Generic.facet: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.4045f4.2) = facet_value %U.as_type.loc34_4.2, (%Generic.lookup_impl_witness) [symbolic = %Generic.facet (constants.%Generic.facet.049)]
+// CHECK:STDOUT:   %.loc34_4.3: type = fn_type_with_self_type %Generic.F.type, %Generic.facet [symbolic = %.loc34_4.3 (constants.%.1bd)]
+// CHECK:STDOUT:   %impl.elem0.loc34_4.2: @CallGenericMethod.%.loc34_4.3 (%.1bd) = impl_witness_access %Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc34_4.2: <specific function> = specific_impl_function %impl.elem0.loc34_4.2, @Generic.F(%T.loc33_22.1, %Generic.facet) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %U.ref: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.91ccba.2) = name_ref U, %U.loc33_32.2 [symbolic = %U.loc33_32.1 (constants.%U)]
+// CHECK:STDOUT:     %U.ref: @CallGenericMethod.%Generic.type.loc33_45.1 (%Generic.type.4045f4.2) = name_ref U, %U.loc33_32.2 [symbolic = %U.loc33_32.1 (constants.%U)]
 // CHECK:STDOUT:     %.loc34_4.1: @CallGenericMethod.%Generic.assoc_type (%Generic.assoc_type.0fd877.2) = specific_constant @Generic.%assoc0.loc16_9.1, @Generic(constants.%T) [symbolic = %assoc0 (constants.%assoc0.2966cb.2)]
 // CHECK:STDOUT:     %F.ref: @CallGenericMethod.%Generic.assoc_type (%Generic.assoc_type.0fd877.2) = name_ref F, %.loc34_4.1 [symbolic = %assoc0 (constants.%assoc0.2966cb.2)]
 // CHECK:STDOUT:     %U.as_type.loc34_4.1: type = facet_access_type %U.ref [symbolic = %U.as_type.loc34_4.2 (constants.%U.as_type)]
 // CHECK:STDOUT:     %.loc34_4.2: type = converted %U.ref, %U.as_type.loc34_4.1 [symbolic = %U.as_type.loc34_4.2 (constants.%U.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc34_4.1: @CallGenericMethod.%.loc34_4.3 (%.177) = impl_witness_access constants.%Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0)]
-// CHECK:STDOUT:     %specific_impl_fn.loc34_4.1: <specific function> = specific_impl_function %impl.elem0.loc34_4.1, @Generic.F(constants.%T, constants.%Generic.facet.680) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %impl.elem0.loc34_4.1: @CallGenericMethod.%.loc34_4.3 (%.1bd) = impl_witness_access constants.%Generic.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc34_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %specific_impl_fn.loc34_4.1: <specific function> = specific_impl_function %impl.elem0.loc34_4.1, @Generic.F(constants.%T, constants.%Generic.facet.049) [symbolic = %specific_impl_fn.loc34_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %.loc34_7: init %empty_tuple.type = call %specific_impl_fn.loc34_4.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -337,9 +337,9 @@ fn G() {
 // CHECK:STDOUT:   %CallGenericMethod.ref: %CallGenericMethod.type = name_ref CallGenericMethod, file.%CallGenericMethod.decl [concrete = constants.%CallGenericMethod]
 // CHECK:STDOUT:   %GenericParam.ref: type = name_ref GenericParam, file.%GenericParam.decl [concrete = constants.%GenericParam]
 // CHECK:STDOUT:   %ImplsGeneric.ref: type = name_ref ImplsGeneric, file.%ImplsGeneric.decl [concrete = constants.%ImplsGeneric]
-// CHECK:STDOUT:   %Generic.facet: %Generic.type.769 = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet.8ff]
-// CHECK:STDOUT:   %.loc38: %Generic.type.769 = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet.8ff]
-// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.8ff) [concrete = constants.%CallGenericMethod.specific_fn]
+// CHECK:STDOUT:   %Generic.facet: %Generic.type.cfe = facet_value constants.%ImplsGeneric, (constants.%Generic.impl_witness) [concrete = constants.%Generic.facet.924]
+// CHECK:STDOUT:   %.loc38: %Generic.type.cfe = converted constants.%ImplsGeneric, %Generic.facet [concrete = constants.%Generic.facet.924]
+// CHECK:STDOUT:   %CallGenericMethod.specific_fn: <specific function> = specific_function %CallGenericMethod.ref, @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.924) [concrete = constants.%CallGenericMethod.specific_fn]
 // CHECK:STDOUT:   %CallGenericMethod.call: init %empty_tuple.type = call %CallGenericMethod.specific_fn()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -348,23 +348,23 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc15_19.1 => constants.%Scalar
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.dee8d8.1) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%Scalar, constants.%Self.f48852.1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%GenericParam) {
 // CHECK:STDOUT:   %Scalar.loc15_19.1 => constants.%GenericParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.769
-// CHECK:STDOUT:   %Self.2 => constants.%Self.f84
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b8f
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.118
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
 // CHECK:STDOUT:   %assoc0.loc16_9.2 => constants.%assoc0.9b7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%GenericParam, constants.%Generic.facet.8ff) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%GenericParam, constants.%Generic.facet.924) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Other.G(constants.%Self.807) {}
+// CHECK:STDOUT: specific @Other.G(constants.%Self.939) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Other.G(constants.%Other.facet) {}
 // CHECK:STDOUT:
@@ -372,8 +372,8 @@ fn G() {
 // CHECK:STDOUT:   %Scalar.loc15_19.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.91ccba.2
-// CHECK:STDOUT:   %Self.2 => constants.%Self.dee8d8.2
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.4045f4.2
+// CHECK:STDOUT:   %Self.2 => constants.%Self.f48852.2
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.f439a9.2
 // CHECK:STDOUT:   %Generic.F => constants.%Generic.F.8a2d67.2
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.0fd877.2
@@ -382,28 +382,28 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CallGenericMethod(constants.%T, constants.%U) {
 // CHECK:STDOUT:   %T.loc33_22.1 => constants.%T
-// CHECK:STDOUT:   %Generic.type.loc33_45.1 => constants.%Generic.type.91ccba.2
+// CHECK:STDOUT:   %Generic.type.loc33_45.1 => constants.%Generic.type.4045f4.2
 // CHECK:STDOUT:   %U.loc33_32.1 => constants.%U
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.80f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3c6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Generic.F(constants.%T, constants.%Generic.facet.680) {}
+// CHECK:STDOUT: specific @Generic.F(constants.%T, constants.%Generic.facet.049) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.8ff) {
+// CHECK:STDOUT: specific @CallGenericMethod(constants.%GenericParam, constants.%Generic.facet.924) {
 // CHECK:STDOUT:   %T.loc33_22.1 => constants.%GenericParam
-// CHECK:STDOUT:   %Generic.type.loc33_45.1 => constants.%Generic.type.769
-// CHECK:STDOUT:   %U.loc33_32.1 => constants.%Generic.facet.8ff
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ded
+// CHECK:STDOUT:   %Generic.type.loc33_45.1 => constants.%Generic.type.cfe
+// CHECK:STDOUT:   %U.loc33_32.1 => constants.%Generic.facet.924
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.bd9
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.997
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.10d
 // CHECK:STDOUT:   %Generic.assoc_type => constants.%Generic.assoc_type.713
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.9b7
 // CHECK:STDOUT:   %U.as_type.loc34_4.2 => constants.%ImplsGeneric
 // CHECK:STDOUT:   %Generic.lookup_impl_witness => constants.%Generic.impl_witness
 // CHECK:STDOUT:   %Generic.F.type => constants.%Generic.F.type.4cf
-// CHECK:STDOUT:   %Generic.facet => constants.%Generic.facet.8ff
-// CHECK:STDOUT:   %.loc34_4.3 => constants.%.3e6
+// CHECK:STDOUT:   %Generic.facet => constants.%Generic.facet.924
+// CHECK:STDOUT:   %.loc34_4.3 => constants.%.e21
 // CHECK:STDOUT:   %impl.elem0.loc34_4.2 => constants.%ImplsGeneric.as.Generic.impl.F
 // CHECK:STDOUT:   %specific_impl_fn.loc34_4.2 => constants.%ImplsGeneric.as.Generic.impl.F
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/function/generic/deduce.carbon b/toolchain/check/testdata/function/generic/deduce.carbon
index acf8c37ff1cf..f74d8812e320 100644
--- a/toolchain/check/testdata/function/generic/deduce.carbon
+++ b/toolchain/check/testdata/function/generic/deduce.carbon
@@ -517,7 +517,7 @@ fn F() {
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -610,7 +610,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -855,18 +855,18 @@ fn F() {
 // CHECK:STDOUT:   %TupleParam.specific_fn: <specific function> = specific_function %TupleParam, @TupleParam(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.4c8 = tuple_value (%int_1, %int_2.ef8) [concrete]
@@ -882,8 +882,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -934,7 +934,7 @@ fn F() {
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc7_19.1: %tuple.type.f94 = tuple_literal (%int_1, %int_2)
 // CHECK:STDOUT:   %TupleParam.specific_fn: <specific function> = specific_function %TupleParam.ref, @TupleParam(Core.IntLiteral) [concrete = constants.%TupleParam.specific_fn]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc7_19.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_19.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method]
@@ -988,18 +988,18 @@ fn F() {
 // CHECK:STDOUT:   %StructParam.specific_fn: <specific function> = specific_function %StructParam, @StructParam(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.a13 = struct_value (%int_1, %int_2.ef8) [concrete]
@@ -1015,8 +1015,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1066,7 +1066,7 @@ fn F() {
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc7_30.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
 // CHECK:STDOUT:   %StructParam.specific_fn: <specific function> = specific_function %StructParam.ref, @StructParam(Core.IntLiteral) [concrete = constants.%StructParam.specific_fn]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc7_30.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_30.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method]
@@ -1596,52 +1596,52 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
-// CHECK:STDOUT:   %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9ba: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %EE: type = class_type @EE [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c99: <witness> = impl_witness @EE.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.490: <witness> = impl_witness @EE.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.7d7: type = ptr_type %EE [concrete]
 // CHECK:STDOUT:   %pattern_type.04a: type = pattern_type %ptr.7d7 [concrete]
 // CHECK:STDOUT:   %EE.as.Destroy.impl.Op.type: type = fn_type @EE.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %EE.as.Destroy.impl.Op: %EE.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.354: <witness> = impl_witness file.%Z.impl_witness_table.loc6 [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.dc8: <witness> = impl_witness file.%Z.impl_witness_table.loc6 [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %E: type = bind_symbolic_name E, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %DD.type: type = generic_class_type @DD [concrete]
 // CHECK:STDOUT:   %DD.generic: %DD.type = struct_value () [concrete]
 // CHECK:STDOUT:   %DD.296: type = class_type @DD, @DD(%E) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.63b: <witness> = impl_witness @DD.%Destroy.impl_witness_table, @DD.as.Destroy.impl(%E) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.308: <witness> = impl_witness @DD.%Destroy.impl_witness_table, @DD.as.Destroy.impl(%E) [symbolic]
 // CHECK:STDOUT:   %ptr.964: type = ptr_type %DD.296 [symbolic]
 // CHECK:STDOUT:   %pattern_type.75a: type = pattern_type %ptr.964 [symbolic]
 // CHECK:STDOUT:   %DD.as.Destroy.impl.Op.type: type = fn_type @DD.as.Destroy.impl.Op, @DD.as.Destroy.impl(%E) [symbolic]
 // CHECK:STDOUT:   %DD.as.Destroy.impl.Op: %DD.as.Destroy.impl.Op.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.c98: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @DD.as.Z.impl(%E) [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.de9: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @DD.as.Z.impl(%E) [symbolic]
 // CHECK:STDOUT:   %D: %Z.type = bind_symbolic_name D, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.5af: type = pattern_type %Z.type [concrete]
+// CHECK:STDOUT:   %pattern_type.6ea: type = pattern_type %Z.type [concrete]
 // CHECK:STDOUT:   %CC.type: type = generic_class_type @CC [concrete]
 // CHECK:STDOUT:   %CC.generic: %CC.type = struct_value () [concrete]
-// CHECK:STDOUT:   %CC.a2f: type = class_type @CC, @CC(%D) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.e69: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic]
-// CHECK:STDOUT:   %ptr.019: type = ptr_type %CC.a2f [symbolic]
-// CHECK:STDOUT:   %pattern_type.d71: type = pattern_type %ptr.019 [symbolic]
+// CHECK:STDOUT:   %CC.88b: type = class_type @CC, @CC(%D) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.044: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic]
+// CHECK:STDOUT:   %ptr.26f: type = ptr_type %CC.88b [symbolic]
+// CHECK:STDOUT:   %pattern_type.453: type = pattern_type %ptr.26f [symbolic]
 // CHECK:STDOUT:   %CC.as.Destroy.impl.Op.type: type = fn_type @CC.as.Destroy.impl.Op, @CC.as.Destroy.impl(%D) [symbolic]
 // CHECK:STDOUT:   %CC.as.Destroy.impl.Op: %CC.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %DD.296, @Z [symbolic]
-// CHECK:STDOUT:   %Z.facet.aae: %Z.type = facet_value %DD.296, (%Z.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %CC.23e: type = class_type @CC, @CC(%Z.facet.aae) [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.b58: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @CC.as.Z.impl(%E) [symbolic]
+// CHECK:STDOUT:   %Z.facet.e18: %Z.type = facet_value %DD.296, (%Z.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %CC.5d4: type = class_type @CC, @CC(%Z.facet.e18) [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.0da: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @CC.as.Z.impl(%E) [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %DD.689: type = class_type @DD, @DD(%EE) [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.0e8: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @DD.as.Z.impl(%EE) [concrete]
-// CHECK:STDOUT:   %Z.facet.a96: %Z.type = facet_value %DD.689, (%Z.impl_witness.0e8) [concrete]
-// CHECK:STDOUT:   %CC.402: type = class_type @CC, @CC(%Z.facet.a96) [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.db1: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @CC.as.Z.impl(%EE) [concrete]
-// CHECK:STDOUT:   %Z.facet.49b: %Z.type = facet_value %CC.402, (%Z.impl_witness.db1) [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.1f4: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @DD.as.Z.impl(%EE) [concrete]
+// CHECK:STDOUT:   %Z.facet.487: %Z.type = facet_value %DD.689, (%Z.impl_witness.1f4) [concrete]
+// CHECK:STDOUT:   %CC.a7d: type = class_type @CC, @CC(%Z.facet.487) [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.90c: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @CC.as.Z.impl(%EE) [concrete]
+// CHECK:STDOUT:   %Z.facet.1b7: %Z.type = facet_value %CC.a7d, (%Z.impl_witness.90c) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1670,7 +1670,7 @@ fn F() {
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.impl_witness_table.loc6 = impl_witness_table (), @EE.as.Z.impl [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc6: <witness> = impl_witness %Z.impl_witness_table.loc6 [concrete = constants.%Z.impl_witness.354]
+// CHECK:STDOUT:   %Z.impl_witness.loc6: <witness> = impl_witness %Z.impl_witness_table.loc6 [concrete = constants.%Z.impl_witness.dc8]
 // CHECK:STDOUT:   %DD.decl: %DD.type = class_decl @DD [concrete = constants.%DD.generic] {
 // CHECK:STDOUT:     %E.patt: %pattern_type.98f = symbolic_binding_pattern E, 0 [concrete]
 // CHECK:STDOUT:   } {
@@ -1688,9 +1688,9 @@ fn F() {
 // CHECK:STDOUT:     %E.loc9_14.1: type = bind_symbolic_name E, 0 [symbolic = %E.loc9_14.2 (constants.%E)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.impl_witness_table.loc9 = impl_witness_table (), @DD.as.Z.impl [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc9: <witness> = impl_witness %Z.impl_witness_table.loc9, @DD.as.Z.impl(constants.%E) [symbolic = @DD.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.c98)]
+// CHECK:STDOUT:   %Z.impl_witness.loc9: <witness> = impl_witness %Z.impl_witness_table.loc9, @DD.as.Z.impl(constants.%E) [symbolic = @DD.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.de9)]
 // CHECK:STDOUT:   %CC.decl: %CC.type = class_decl @CC [concrete = constants.%CC.generic] {
-// CHECK:STDOUT:     %D.patt: %pattern_type.5af = symbolic_binding_pattern D, 0 [concrete]
+// CHECK:STDOUT:     %D.patt: %pattern_type.6ea = symbolic_binding_pattern D, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc11: type = splice_block %Z.ref [concrete = constants.%Z.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1705,20 +1705,20 @@ fn F() {
 // CHECK:STDOUT:     %DD.ref: %DD.type = name_ref DD, file.%DD.decl [concrete = constants.%DD.generic]
 // CHECK:STDOUT:     %E.ref: type = name_ref E, %E.loc12_14.1 [symbolic = %E.loc12_14.2 (constants.%E)]
 // CHECK:STDOUT:     %DD.loc12_31.1: type = class_type @DD, @DD(constants.%E) [symbolic = %DD.loc12_31.2 (constants.%DD.296)]
-// CHECK:STDOUT:     %Z.facet.loc12_32.1: %Z.type = facet_value constants.%DD.296, (constants.%Z.lookup_impl_witness) [symbolic = %Z.facet.loc12_32.2 (constants.%Z.facet.aae)]
-// CHECK:STDOUT:     %.loc12: %Z.type = converted %DD.loc12_31.1, %Z.facet.loc12_32.1 [symbolic = %Z.facet.loc12_32.2 (constants.%Z.facet.aae)]
-// CHECK:STDOUT:     %CC.loc12_32.1: type = class_type @CC, @CC(constants.%Z.facet.aae) [symbolic = %CC.loc12_32.2 (constants.%CC.23e)]
+// CHECK:STDOUT:     %Z.facet.loc12_32.1: %Z.type = facet_value constants.%DD.296, (constants.%Z.lookup_impl_witness) [symbolic = %Z.facet.loc12_32.2 (constants.%Z.facet.e18)]
+// CHECK:STDOUT:     %.loc12: %Z.type = converted %DD.loc12_31.1, %Z.facet.loc12_32.1 [symbolic = %Z.facet.loc12_32.2 (constants.%Z.facet.e18)]
+// CHECK:STDOUT:     %CC.loc12_32.1: type = class_type @CC, @CC(constants.%Z.facet.e18) [symbolic = %CC.loc12_32.2 (constants.%CC.5d4)]
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %E.loc12_14.1: type = bind_symbolic_name E, 0 [symbolic = %E.loc12_14.2 (constants.%E)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.impl_witness_table.loc12 = impl_witness_table (), @CC.as.Z.impl [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc12: <witness> = impl_witness %Z.impl_witness_table.loc12, @CC.as.Z.impl(constants.%E) [symbolic = @CC.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.b58)]
+// CHECK:STDOUT:   %Z.impl_witness.loc12: <witness> = impl_witness %Z.impl_witness_table.loc12, @CC.as.Z.impl(constants.%E) [symbolic = @CC.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.0da)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9ba]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1749,7 +1749,7 @@ fn F() {
 // CHECK:STDOUT: generic impl @DD.as.Destroy.impl(@DD.%E.loc8_10.2: type) {
 // CHECK:STDOUT:   %E: type = bind_symbolic_name E, 0 [symbolic = %E (constants.%E)]
 // CHECK:STDOUT:   %DD: type = class_type @DD, @DD(%E) [symbolic = %DD (constants.%DD.296)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @DD.%Destroy.impl_witness_table, @DD.as.Destroy.impl(%E) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.63b)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @DD.%Destroy.impl_witness_table, @DD.as.Destroy.impl(%E) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.308)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %DD.as.Destroy.impl.Op.type: type = fn_type @DD.as.Destroy.impl.Op, @DD.as.Destroy.impl(%E) [symbolic = %DD.as.Destroy.impl.Op.type (constants.%DD.as.Destroy.impl.Op.type)]
@@ -1778,7 +1778,7 @@ fn F() {
 // CHECK:STDOUT: generic impl @DD.as.Z.impl(%E.loc9_14.1: type) {
 // CHECK:STDOUT:   %E.loc9_14.2: type = bind_symbolic_name E, 0 [symbolic = %E.loc9_14.2 (constants.%E)]
 // CHECK:STDOUT:   %DD.loc9_28.2: type = class_type @DD, @DD(%E.loc9_14.2) [symbolic = %DD.loc9_28.2 (constants.%DD.296)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @DD.as.Z.impl(%E.loc9_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.c98)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @DD.as.Z.impl(%E.loc9_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.de9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -1790,8 +1790,8 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @CC.as.Destroy.impl(@CC.%D.loc11_10.2: %Z.type) {
 // CHECK:STDOUT:   %D: %Z.type = bind_symbolic_name D, 0 [symbolic = %D (constants.%D)]
-// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.a2f)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e69)]
+// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.88b)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.044)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %CC.as.Destroy.impl.Op.type: type = fn_type @CC.as.Destroy.impl.Op, @CC.as.Destroy.impl(%D) [symbolic = %CC.as.Destroy.impl.Op.type (constants.%CC.as.Destroy.impl.Op.type)]
@@ -1799,16 +1799,16 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @CC.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %CC.as.Destroy.impl.Op.decl: @CC.as.Destroy.impl.%CC.as.Destroy.impl.Op.type (%CC.as.Destroy.impl.Op.type) = fn_decl @CC.as.Destroy.impl.Op [symbolic = @CC.as.Destroy.impl.%CC.as.Destroy.impl.Op (constants.%CC.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.d71) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.d71) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.453) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.453) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc11_17.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.019) = value_param call_param0
-// CHECK:STDOUT:       %.loc11_17.2: type = splice_block %Self.ref [symbolic = %CC (constants.%CC.a2f)] {
-// CHECK:STDOUT:         %.loc11_17.3: type = specific_constant constants.%CC.a2f, @CC(constants.%D) [symbolic = %CC (constants.%CC.a2f)]
-// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc11_17.3 [symbolic = %CC (constants.%CC.a2f)]
+// CHECK:STDOUT:       %self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.26f) = value_param call_param0
+// CHECK:STDOUT:       %.loc11_17.2: type = splice_block %Self.ref [symbolic = %CC (constants.%CC.88b)] {
+// CHECK:STDOUT:         %.loc11_17.3: type = specific_constant constants.%CC.88b, @CC(constants.%D) [symbolic = %CC (constants.%CC.88b)]
+// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc11_17.3 [symbolic = %CC (constants.%CC.88b)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @CC.as.Destroy.impl.Op.%ptr (%ptr.019) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @CC.as.Destroy.impl.Op.%ptr (%ptr.26f) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -1821,9 +1821,9 @@ fn F() {
 // CHECK:STDOUT:   %E.loc12_14.2: type = bind_symbolic_name E, 0 [symbolic = %E.loc12_14.2 (constants.%E)]
 // CHECK:STDOUT:   %DD.loc12_31.2: type = class_type @DD, @DD(%E.loc12_14.2) [symbolic = %DD.loc12_31.2 (constants.%DD.296)]
 // CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %DD.loc12_31.2, @Z [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness)]
-// CHECK:STDOUT:   %Z.facet.loc12_32.2: %Z.type = facet_value %DD.loc12_31.2, (%Z.lookup_impl_witness) [symbolic = %Z.facet.loc12_32.2 (constants.%Z.facet.aae)]
-// CHECK:STDOUT:   %CC.loc12_32.2: type = class_type @CC, @CC(%Z.facet.loc12_32.2) [symbolic = %CC.loc12_32.2 (constants.%CC.23e)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @CC.as.Z.impl(%E.loc12_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.b58)]
+// CHECK:STDOUT:   %Z.facet.loc12_32.2: %Z.type = facet_value %DD.loc12_31.2, (%Z.lookup_impl_witness) [symbolic = %Z.facet.loc12_32.2 (constants.%Z.facet.e18)]
+// CHECK:STDOUT:   %CC.loc12_32.2: type = class_type @CC, @CC(%Z.facet.loc12_32.2) [symbolic = %CC.loc12_32.2 (constants.%CC.5d4)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @CC.as.Z.impl(%E.loc12_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.0da)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -1837,7 +1837,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%EE [concrete = constants.%EE]
 // CHECK:STDOUT:   impl_decl @EE.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@EE.as.Destroy.impl.%EE.as.Destroy.impl.Op.decl), @EE.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c99]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.490]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1854,7 +1854,7 @@ fn F() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%DD.296 [symbolic = @DD.as.Destroy.impl.%DD (constants.%DD.296)]
 // CHECK:STDOUT:     impl_decl @DD.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@DD.as.Destroy.impl.%DD.as.Destroy.impl.Op.decl), @DD.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @DD.as.Destroy.impl(constants.%E) [symbolic = @DD.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.63b)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @DD.as.Destroy.impl(constants.%E) [symbolic = @DD.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.308)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1869,15 +1869,15 @@ fn F() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%CC.a2f [symbolic = @CC.as.Destroy.impl.%CC (constants.%CC.a2f)]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%CC.88b [symbolic = @CC.as.Destroy.impl.%CC (constants.%CC.88b)]
 // CHECK:STDOUT:     impl_decl @CC.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@CC.as.Destroy.impl.%CC.as.Destroy.impl.Op.decl), @CC.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @CC.as.Destroy.impl(constants.%D) [symbolic = @CC.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.e69)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @CC.as.Destroy.impl(constants.%D) [symbolic = @CC.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.044)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = constants.%CC.a2f
+// CHECK:STDOUT:     .Self = constants.%CC.88b
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1896,13 +1896,13 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @CC.as.Destroy.impl.Op(@CC.%D.loc11_10.2: %Z.type) {
 // CHECK:STDOUT:   %D: %Z.type = bind_symbolic_name D, 0 [symbolic = %D (constants.%D)]
-// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.a2f)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %CC [symbolic = %ptr (constants.%ptr.019)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.d71)]
+// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.88b)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %CC [symbolic = %ptr (constants.%ptr.26f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.453)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.019)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.26f)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1911,12 +1911,12 @@ fn F() {
 // CHECK:STDOUT:   %DD.ref: %DD.type = name_ref DD, file.%DD.decl [concrete = constants.%DD.generic]
 // CHECK:STDOUT:   %EE.ref: type = name_ref EE, file.%EE.decl [concrete = constants.%EE]
 // CHECK:STDOUT:   %DD: type = class_type @DD, @DD(constants.%EE) [concrete = constants.%DD.689]
-// CHECK:STDOUT:   %Z.facet.loc15_12: %Z.type = facet_value constants.%DD.689, (constants.%Z.impl_witness.0e8) [concrete = constants.%Z.facet.a96]
-// CHECK:STDOUT:   %.loc15_12: %Z.type = converted %DD, %Z.facet.loc15_12 [concrete = constants.%Z.facet.a96]
-// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(constants.%Z.facet.a96) [concrete = constants.%CC.402]
+// CHECK:STDOUT:   %Z.facet.loc15_12: %Z.type = facet_value constants.%DD.689, (constants.%Z.impl_witness.1f4) [concrete = constants.%Z.facet.487]
+// CHECK:STDOUT:   %.loc15_12: %Z.type = converted %DD, %Z.facet.loc15_12 [concrete = constants.%Z.facet.487]
+// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(constants.%Z.facet.487) [concrete = constants.%CC.a7d]
 // CHECK:STDOUT:   %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
-// CHECK:STDOUT:   %Z.facet.loc15_14: %Z.type = facet_value constants.%CC.402, (constants.%Z.impl_witness.db1) [concrete = constants.%Z.facet.49b]
-// CHECK:STDOUT:   %.loc15_14: %Z.type = converted %CC, %Z.facet.loc15_14 [concrete = constants.%Z.facet.49b]
+// CHECK:STDOUT:   %Z.facet.loc15_14: %Z.type = facet_value constants.%CC.a7d, (constants.%Z.impl_witness.90c) [concrete = constants.%Z.facet.1b7]
+// CHECK:STDOUT:   %.loc15_14: %Z.type = converted %CC, %Z.facet.loc15_14 [concrete = constants.%Z.facet.1b7]
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1927,7 +1927,7 @@ fn F() {
 // CHECK:STDOUT: specific @DD.as.Destroy.impl(constants.%E) {
 // CHECK:STDOUT:   %E => constants.%E
 // CHECK:STDOUT:   %DD => constants.%DD.296
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.63b
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.308
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @DD.as.Destroy.impl.Op(constants.%E) {
@@ -1940,7 +1940,7 @@ fn F() {
 // CHECK:STDOUT: specific @DD.as.Z.impl(constants.%E) {
 // CHECK:STDOUT:   %E.loc9_14.2 => constants.%E
 // CHECK:STDOUT:   %DD.loc9_28.2 => constants.%DD.296
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.c98
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.de9
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
@@ -1951,28 +1951,28 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Destroy.impl(constants.%D) {
 // CHECK:STDOUT:   %D => constants.%D
-// CHECK:STDOUT:   %CC => constants.%CC.a2f
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e69
+// CHECK:STDOUT:   %CC => constants.%CC.88b
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.044
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Destroy.impl.Op(constants.%D) {
 // CHECK:STDOUT:   %D => constants.%D
-// CHECK:STDOUT:   %CC => constants.%CC.a2f
-// CHECK:STDOUT:   %ptr => constants.%ptr.019
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d71
+// CHECK:STDOUT:   %CC => constants.%CC.88b
+// CHECK:STDOUT:   %ptr => constants.%ptr.26f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.453
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CC(constants.%Z.facet.aae) {
-// CHECK:STDOUT:   %D.loc11_10.1 => constants.%Z.facet.aae
+// CHECK:STDOUT: specific @CC(constants.%Z.facet.e18) {
+// CHECK:STDOUT:   %D.loc11_10.1 => constants.%Z.facet.e18
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Z.impl(constants.%E) {
 // CHECK:STDOUT:   %E.loc12_14.2 => constants.%E
 // CHECK:STDOUT:   %DD.loc12_31.2 => constants.%DD.296
 // CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.lookup_impl_witness
-// CHECK:STDOUT:   %Z.facet.loc12_32.2 => constants.%Z.facet.aae
-// CHECK:STDOUT:   %CC.loc12_32.2 => constants.%CC.23e
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.b58
+// CHECK:STDOUT:   %Z.facet.loc12_32.2 => constants.%Z.facet.e18
+// CHECK:STDOUT:   %CC.loc12_32.2 => constants.%CC.5d4
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.0da
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @DD(constants.%EE) {
@@ -1982,22 +1982,22 @@ fn F() {
 // CHECK:STDOUT: specific @DD.as.Z.impl(constants.%EE) {
 // CHECK:STDOUT:   %E.loc9_14.2 => constants.%EE
 // CHECK:STDOUT:   %DD.loc9_28.2 => constants.%DD.689
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.0e8
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.1f4
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CC(constants.%Z.facet.a96) {
-// CHECK:STDOUT:   %D.loc11_10.1 => constants.%Z.facet.a96
+// CHECK:STDOUT: specific @CC(constants.%Z.facet.487) {
+// CHECK:STDOUT:   %D.loc11_10.1 => constants.%Z.facet.487
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Z.impl(constants.%EE) {
 // CHECK:STDOUT:   %E.loc12_14.2 => constants.%EE
 // CHECK:STDOUT:   %DD.loc12_31.2 => constants.%DD.689
-// CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.impl_witness.0e8
-// CHECK:STDOUT:   %Z.facet.loc12_32.2 => constants.%Z.facet.a96
-// CHECK:STDOUT:   %CC.loc12_32.2 => constants.%CC.402
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.db1
+// CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.impl_witness.1f4
+// CHECK:STDOUT:   %Z.facet.loc12_32.2 => constants.%Z.facet.487
+// CHECK:STDOUT:   %CC.loc12_32.2 => constants.%CC.a7d
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.90c
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/function/generic/deduce_nested_facet_value.carbon b/toolchain/check/testdata/function/generic/deduce_nested_facet_value.carbon
index 1b8a503e3a72..6cc55c21b6d7 100644
--- a/toolchain/check/testdata/function/generic/deduce_nested_facet_value.carbon
+++ b/toolchain/check/testdata/function/generic/deduce_nested_facet_value.carbon
@@ -41,13 +41,13 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.b29: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.33b: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %W.type: type = facet_type <@W> [concrete]
-// CHECK:STDOUT:   %Self.f12: %W.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9bf: %W.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %DD: type = class_type @DD [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.147: <witness> = impl_witness @DD.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.0ec: <witness> = impl_witness @DD.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.3d1: type = ptr_type %DD [concrete]
 // CHECK:STDOUT:   %pattern_type.3fc: type = pattern_type %ptr.3d1 [concrete]
 // CHECK:STDOUT:   %DD.as.Destroy.impl.Op.type: type = fn_type @DD.as.Destroy.impl.Op [concrete]
@@ -58,42 +58,42 @@ fn F() {
 // CHECK:STDOUT:   %W.impl_witness: <witness> = impl_witness file.%W.impl_witness_table [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %D: %Y.type = bind_symbolic_name D, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.667: type = pattern_type %Y.type [concrete]
+// CHECK:STDOUT:   %pattern_type.f7e: type = pattern_type %Y.type [concrete]
 // CHECK:STDOUT:   %CC.type: type = generic_class_type @CC [concrete]
 // CHECK:STDOUT:   %CC.generic: %CC.type = struct_value () [concrete]
-// CHECK:STDOUT:   %CC.3ba: type = class_type @CC, @CC(%D) [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.a11: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic]
-// CHECK:STDOUT:   %ptr.423: type = ptr_type %CC.3ba [symbolic]
-// CHECK:STDOUT:   %pattern_type.1ed: type = pattern_type %ptr.423 [symbolic]
+// CHECK:STDOUT:   %CC.6c6: type = class_type @CC, @CC(%D) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.195: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic]
+// CHECK:STDOUT:   %ptr.f53: type = ptr_type %CC.6c6 [symbolic]
+// CHECK:STDOUT:   %pattern_type.6d4: type = pattern_type %ptr.f53 [symbolic]
 // CHECK:STDOUT:   %CC.as.Destroy.impl.Op.type: type = fn_type @CC.as.Destroy.impl.Op, @CC.as.Destroy.impl(%D) [symbolic]
 // CHECK:STDOUT:   %CC.as.Destroy.impl.Op: %CC.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
-// CHECK:STDOUT:   %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9ba: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %Y.type, %type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %facet_type: type = facet_type <@Y & @W> [concrete]
 // CHECK:STDOUT:   %E: %facet_type = bind_symbolic_name E, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.122: type = pattern_type %facet_type [concrete]
+// CHECK:STDOUT:   %pattern_type.29c: type = pattern_type %facet_type [concrete]
 // CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %E, @Y [symbolic]
 // CHECK:STDOUT:   %E.as_type: type = facet_access_type %E [symbolic]
-// CHECK:STDOUT:   %Y.facet.7ec: %Y.type = facet_value %E.as_type, (%Y.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %CC.d02: type = class_type @CC, @CC(%Y.facet.7ec) [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.741: <witness> = impl_witness file.%Z.impl_witness_table, @CC.as.Z.impl(%E) [symbolic]
+// CHECK:STDOUT:   %Y.facet.ecf: %Y.type = facet_value %E.as_type, (%Y.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %CC.6eb: type = class_type @CC, @CC(%Y.facet.ecf) [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.481: <witness> = impl_witness file.%Z.impl_witness_table, @CC.as.Z.impl(%E) [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Y.facet.268: %Y.type = facet_value %DD, (%Y.impl_witness) [concrete]
-// CHECK:STDOUT:   %CC.7bf: type = class_type @CC, @CC(%Y.facet.268) [concrete]
+// CHECK:STDOUT:   %Y.facet.b41: %Y.type = facet_value %DD, (%Y.impl_witness) [concrete]
+// CHECK:STDOUT:   %CC.017: type = class_type @CC, @CC(%Y.facet.b41) [concrete]
 // CHECK:STDOUT:   %facet_value: %facet_type = facet_value %DD, (%Y.impl_witness, %W.impl_witness) [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.3b0: <witness> = impl_witness file.%Z.impl_witness_table, @CC.as.Z.impl(%facet_value) [concrete]
-// CHECK:STDOUT:   %Z.facet: %Z.type = facet_value %CC.7bf, (%Z.impl_witness.3b0) [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.9cd: <witness> = impl_witness file.%Z.impl_witness_table, @CC.as.Z.impl(%facet_value) [concrete]
+// CHECK:STDOUT:   %Z.facet: %Z.type = facet_value %CC.017, (%Z.impl_witness.9cd) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -105,8 +105,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -136,7 +136,7 @@ fn F() {
 // CHECK:STDOUT:   %W.impl_witness_table = impl_witness_table (), @DD.as.W.impl [concrete]
 // CHECK:STDOUT:   %W.impl_witness: <witness> = impl_witness %W.impl_witness_table [concrete = constants.%W.impl_witness]
 // CHECK:STDOUT:   %CC.decl: %CC.type = class_decl @CC [concrete = constants.%CC.generic] {
-// CHECK:STDOUT:     %D.patt: %pattern_type.667 = symbolic_binding_pattern D, 0 [concrete]
+// CHECK:STDOUT:     %D.patt: %pattern_type.f7e = symbolic_binding_pattern D, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc12: type = splice_block %Y.ref [concrete = constants.%Y.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -146,20 +146,20 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.decl: type = interface_decl @Z [concrete = constants.%Z.type] {} {}
 // CHECK:STDOUT:   impl_decl @CC.as.Z.impl [concrete] {
-// CHECK:STDOUT:     %E.patt: %pattern_type.122 = symbolic_binding_pattern E, 0 [concrete]
+// CHECK:STDOUT:     %E.patt: %pattern_type.29c = symbolic_binding_pattern E, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %CC.ref: %CC.type = name_ref CC, file.%CC.decl [concrete = constants.%CC.generic]
 // CHECK:STDOUT:     %E.ref: %facet_type = name_ref E, %E.loc19_14.1 [symbolic = %E.loc19_14.2 (constants.%E)]
 // CHECK:STDOUT:     %E.as_type.loc19_29.1: type = facet_access_type constants.%E [symbolic = %E.as_type.loc19_29.2 (constants.%E.as_type)]
-// CHECK:STDOUT:     %Y.facet.loc19_29.1: %Y.type = facet_value %E.as_type.loc19_29.1, (constants.%Y.lookup_impl_witness) [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.7ec)]
-// CHECK:STDOUT:     %.loc19_29: %Y.type = converted %E.ref, %Y.facet.loc19_29.1 [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.7ec)]
-// CHECK:STDOUT:     %CC.loc19_29.1: type = class_type @CC, @CC(constants.%Y.facet.7ec) [symbolic = %CC.loc19_29.2 (constants.%CC.d02)]
+// CHECK:STDOUT:     %Y.facet.loc19_29.1: %Y.type = facet_value %E.as_type.loc19_29.1, (constants.%Y.lookup_impl_witness) [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.ecf)]
+// CHECK:STDOUT:     %.loc19_29: %Y.type = converted %E.ref, %Y.facet.loc19_29.1 [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.ecf)]
+// CHECK:STDOUT:     %CC.loc19_29.1: type = class_type @CC, @CC(constants.%Y.facet.ecf) [symbolic = %CC.loc19_29.2 (constants.%CC.6eb)]
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
 // CHECK:STDOUT:     %.loc19_20.1: type = splice_block %.loc19_20.3 [concrete = constants.%facet_type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y.type]
 // CHECK:STDOUT:       %W.ref: type = name_ref W, file.%W.decl [concrete = constants.%W.type]
-// CHECK:STDOUT:       %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %impl.elem0: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:       %bound_method: <bound method> = bound_method %Y.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%Y.ref, %W.ref) [concrete = constants.%facet_type]
 // CHECK:STDOUT:       %.loc19_20.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type]
@@ -168,12 +168,12 @@ fn F() {
 // CHECK:STDOUT:     %E.loc19_14.1: %facet_type = bind_symbolic_name E, 0 [symbolic = %E.loc19_14.2 (constants.%E)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.impl_witness_table = impl_witness_table (), @CC.as.Z.impl [concrete]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table, @CC.as.Z.impl(constants.%E) [symbolic = @CC.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.741)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table, @CC.as.Z.impl(constants.%E) [symbolic = @CC.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.481)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b29]
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.33b]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -181,7 +181,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @W {
-// CHECK:STDOUT:   %Self: %W.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f12]
+// CHECK:STDOUT:   %Self: %W.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9bf]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -189,7 +189,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9ba]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -224,8 +224,8 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @CC.as.Destroy.impl(@CC.%D.loc12_10.2: %Y.type) {
 // CHECK:STDOUT:   %D: %Y.type = bind_symbolic_name D, 0 [symbolic = %D (constants.%D)]
-// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.3ba)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a11)]
+// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.6c6)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @CC.%Destroy.impl_witness_table, @CC.as.Destroy.impl(%D) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.195)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %CC.as.Destroy.impl.Op.type: type = fn_type @CC.as.Destroy.impl.Op, @CC.as.Destroy.impl(%D) [symbolic = %CC.as.Destroy.impl.Op.type (constants.%CC.as.Destroy.impl.Op.type)]
@@ -233,16 +233,16 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @CC.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %CC.as.Destroy.impl.Op.decl: @CC.as.Destroy.impl.%CC.as.Destroy.impl.Op.type (%CC.as.Destroy.impl.Op.type) = fn_decl @CC.as.Destroy.impl.Op [symbolic = @CC.as.Destroy.impl.%CC.as.Destroy.impl.Op (constants.%CC.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.1ed) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.1ed) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.6d4) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @CC.as.Destroy.impl.Op.%pattern_type (%pattern_type.6d4) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc12_17.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.423) = value_param call_param0
-// CHECK:STDOUT:       %.loc12_17.2: type = splice_block %Self.ref [symbolic = %CC (constants.%CC.3ba)] {
-// CHECK:STDOUT:         %.loc12_17.3: type = specific_constant constants.%CC.3ba, @CC(constants.%D) [symbolic = %CC (constants.%CC.3ba)]
-// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc12_17.3 [symbolic = %CC (constants.%CC.3ba)]
+// CHECK:STDOUT:       %self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.f53) = value_param call_param0
+// CHECK:STDOUT:       %.loc12_17.2: type = splice_block %Self.ref [symbolic = %CC (constants.%CC.6c6)] {
+// CHECK:STDOUT:         %.loc12_17.3: type = specific_constant constants.%CC.6c6, @CC(constants.%D) [symbolic = %CC (constants.%CC.6c6)]
+// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc12_17.3 [symbolic = %CC (constants.%CC.6c6)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @CC.as.Destroy.impl.Op.%ptr (%ptr.423) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @CC.as.Destroy.impl.Op.%ptr (%ptr.f53) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -255,9 +255,9 @@ fn F() {
 // CHECK:STDOUT:   %E.loc19_14.2: %facet_type = bind_symbolic_name E, 0 [symbolic = %E.loc19_14.2 (constants.%E)]
 // CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %E.loc19_14.2, @Y [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness)]
 // CHECK:STDOUT:   %E.as_type.loc19_29.2: type = facet_access_type %E.loc19_14.2 [symbolic = %E.as_type.loc19_29.2 (constants.%E.as_type)]
-// CHECK:STDOUT:   %Y.facet.loc19_29.2: %Y.type = facet_value %E.as_type.loc19_29.2, (%Y.lookup_impl_witness) [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.7ec)]
-// CHECK:STDOUT:   %CC.loc19_29.2: type = class_type @CC, @CC(%Y.facet.loc19_29.2) [symbolic = %CC.loc19_29.2 (constants.%CC.d02)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table, @CC.as.Z.impl(%E.loc19_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.741)]
+// CHECK:STDOUT:   %Y.facet.loc19_29.2: %Y.type = facet_value %E.as_type.loc19_29.2, (%Y.lookup_impl_witness) [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.ecf)]
+// CHECK:STDOUT:   %CC.loc19_29.2: type = class_type @CC, @CC(%Y.facet.loc19_29.2) [symbolic = %CC.loc19_29.2 (constants.%CC.6eb)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table, @CC.as.Z.impl(%E.loc19_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.481)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -271,7 +271,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%DD [concrete = constants.%DD]
 // CHECK:STDOUT:   impl_decl @DD.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@DD.as.Destroy.impl.%DD.as.Destroy.impl.Op.decl), @DD.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.147]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.0ec]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -285,15 +285,15 @@ fn F() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%CC.3ba [symbolic = @CC.as.Destroy.impl.%CC (constants.%CC.3ba)]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%CC.6c6 [symbolic = @CC.as.Destroy.impl.%CC (constants.%CC.6c6)]
 // CHECK:STDOUT:     impl_decl @CC.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@CC.as.Destroy.impl.%CC.as.Destroy.impl.Op.decl), @CC.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @CC.as.Destroy.impl(constants.%D) [symbolic = @CC.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a11)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @CC.as.Destroy.impl(constants.%D) [symbolic = @CC.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.195)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = constants.%CC.3ba
+// CHECK:STDOUT:     .Self = constants.%CC.6c6
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -301,26 +301,26 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @CC.as.Destroy.impl.Op(@CC.%D.loc12_10.2: %Y.type) {
 // CHECK:STDOUT:   %D: %Y.type = bind_symbolic_name D, 0 [symbolic = %D (constants.%D)]
-// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.3ba)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %CC [symbolic = %ptr (constants.%ptr.423)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.1ed)]
+// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(%D) [symbolic = %CC (constants.%CC.6c6)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %CC [symbolic = %ptr (constants.%ptr.f53)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.6d4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.423)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @CC.as.Destroy.impl.Op.%ptr (%ptr.f53)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %CC.ref: %CC.type = name_ref CC, file.%CC.decl [concrete = constants.%CC.generic]
 // CHECK:STDOUT:   %DD.ref: type = name_ref DD, file.%DD.decl [concrete = constants.%DD]
-// CHECK:STDOUT:   %Y.facet: %Y.type = facet_value constants.%DD, (constants.%Y.impl_witness) [concrete = constants.%Y.facet.268]
-// CHECK:STDOUT:   %.loc22_9: %Y.type = converted %DD.ref, %Y.facet [concrete = constants.%Y.facet.268]
-// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(constants.%Y.facet.268) [concrete = constants.%CC.7bf]
+// CHECK:STDOUT:   %Y.facet: %Y.type = facet_value constants.%DD, (constants.%Y.impl_witness) [concrete = constants.%Y.facet.b41]
+// CHECK:STDOUT:   %.loc22_9: %Y.type = converted %DD.ref, %Y.facet [concrete = constants.%Y.facet.b41]
+// CHECK:STDOUT:   %CC: type = class_type @CC, @CC(constants.%Y.facet.b41) [concrete = constants.%CC.017]
 // CHECK:STDOUT:   %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
 // CHECK:STDOUT:   %facet_value: %facet_type = facet_value constants.%DD, (constants.%Y.impl_witness, constants.%W.impl_witness) [concrete = constants.%facet_value]
 // CHECK:STDOUT:   %.loc22_12.1: %facet_type = converted constants.%DD, %facet_value [concrete = constants.%facet_value]
-// CHECK:STDOUT:   %Z.facet: %Z.type = facet_value constants.%CC.7bf, (constants.%Z.impl_witness.3b0) [concrete = constants.%Z.facet]
+// CHECK:STDOUT:   %Z.facet: %Z.type = facet_value constants.%CC.017, (constants.%Z.impl_witness.9cd) [concrete = constants.%Z.facet]
 // CHECK:STDOUT:   %.loc22_12.2: %Z.type = converted %CC, %Z.facet [concrete = constants.%Z.facet]
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -331,41 +331,41 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Destroy.impl(constants.%D) {
 // CHECK:STDOUT:   %D => constants.%D
-// CHECK:STDOUT:   %CC => constants.%CC.3ba
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a11
+// CHECK:STDOUT:   %CC => constants.%CC.6c6
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.195
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Destroy.impl.Op(constants.%D) {
 // CHECK:STDOUT:   %D => constants.%D
-// CHECK:STDOUT:   %CC => constants.%CC.3ba
-// CHECK:STDOUT:   %ptr => constants.%ptr.423
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.1ed
+// CHECK:STDOUT:   %CC => constants.%CC.6c6
+// CHECK:STDOUT:   %ptr => constants.%ptr.f53
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6d4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CC(constants.%Y.facet.7ec) {
-// CHECK:STDOUT:   %D.loc12_10.1 => constants.%Y.facet.7ec
+// CHECK:STDOUT: specific @CC(constants.%Y.facet.ecf) {
+// CHECK:STDOUT:   %D.loc12_10.1 => constants.%Y.facet.ecf
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Z.impl(constants.%E) {
 // CHECK:STDOUT:   %E.loc19_14.2 => constants.%E
 // CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness
 // CHECK:STDOUT:   %E.as_type.loc19_29.2 => constants.%E.as_type
-// CHECK:STDOUT:   %Y.facet.loc19_29.2 => constants.%Y.facet.7ec
-// CHECK:STDOUT:   %CC.loc19_29.2 => constants.%CC.d02
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.741
+// CHECK:STDOUT:   %Y.facet.loc19_29.2 => constants.%Y.facet.ecf
+// CHECK:STDOUT:   %CC.loc19_29.2 => constants.%CC.6eb
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.481
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CC(constants.%Y.facet.268) {
-// CHECK:STDOUT:   %D.loc12_10.1 => constants.%Y.facet.268
+// CHECK:STDOUT: specific @CC(constants.%Y.facet.b41) {
+// CHECK:STDOUT:   %D.loc12_10.1 => constants.%Y.facet.b41
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @CC.as.Z.impl(constants.%facet_value) {
 // CHECK:STDOUT:   %E.loc19_14.2 => constants.%facet_value
 // CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.impl_witness
 // CHECK:STDOUT:   %E.as_type.loc19_29.2 => constants.%DD
-// CHECK:STDOUT:   %Y.facet.loc19_29.2 => constants.%Y.facet.268
-// CHECK:STDOUT:   %CC.loc19_29.2 => constants.%CC.7bf
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.3b0
+// CHECK:STDOUT:   %Y.facet.loc19_29.2 => constants.%Y.facet.b41
+// CHECK:STDOUT:   %CC.loc19_29.2 => constants.%CC.017
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.9cd
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/function/generic/fail_deduce_imported_function.carbon b/toolchain/check/testdata/function/generic/fail_deduce_imported_function.carbon
index 3e82cc8d596f..08fb800637f6 100644
--- a/toolchain/check/testdata/function/generic/fail_deduce_imported_function.carbon
+++ b/toolchain/check/testdata/function/generic/fail_deduce_imported_function.carbon
@@ -52,10 +52,10 @@ fn B() {
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %Z.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.5af: type = pattern_type %Z.type [concrete]
+// CHECK:STDOUT:   %pattern_type.6ea: type = pattern_type %Z.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
 // CHECK:STDOUT:   %struct_type.a: type = struct_type {.a: %T.as_type} [symbolic]
-// CHECK:STDOUT:   %pattern_type.64f: type = pattern_type %struct_type.a [symbolic]
+// CHECK:STDOUT:   %pattern_type.559: type = pattern_type %struct_type.a [symbolic]
 // CHECK:STDOUT:   %A.type: type = fn_type @A [concrete]
 // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %struct_type.a [symbolic]
@@ -68,9 +68,9 @@ fn B() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.decl: type = interface_decl @Z [concrete = constants.%Z.type] {} {}
 // CHECK:STDOUT:   %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.5af = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @A.%pattern_type (%pattern_type.64f) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @A.%pattern_type (%pattern_type.64f) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.6ea = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @A.%pattern_type (%pattern_type.559) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @A.%pattern_type (%pattern_type.559) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc4_10: type = splice_block %Z.ref [concrete = constants.%Z.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -100,7 +100,7 @@ fn B() {
 // CHECK:STDOUT:   %T.loc4_6.1: %Z.type = bind_symbolic_name T, 0 [symbolic = %T.loc4_6.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc4_21.1: type = facet_access_type %T.loc4_6.1 [symbolic = %T.as_type.loc4_21.1 (constants.%T.as_type)]
 // CHECK:STDOUT:   %struct_type.a.loc4_22.1: type = struct_type {.a: @A.%T.as_type.loc4_21.1 (%T.as_type)} [symbolic = %struct_type.a.loc4_22.1 (constants.%struct_type.a)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %struct_type.a.loc4_22.1 [symbolic = %pattern_type (constants.%pattern_type.64f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %struct_type.a.loc4_22.1 [symbolic = %pattern_type (constants.%pattern_type.559)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %struct_type.a.loc4_22.1 [symbolic = %require_complete (constants.%require_complete)]
@@ -115,7 +115,7 @@ fn B() {
 // CHECK:STDOUT:   %T.loc4_6.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc4_21.1 => constants.%T.as_type
 // CHECK:STDOUT:   %struct_type.a.loc4_22.1 => constants.%struct_type.a
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.64f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.559
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_deduce_imported_function.carbon
@@ -124,10 +124,10 @@ fn B() {
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
 // CHECK:STDOUT:   %T: %Z.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3dd: type = pattern_type %Z.type [concrete]
+// CHECK:STDOUT:   %pattern_type.e5e: type = pattern_type %Z.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
 // CHECK:STDOUT:   %struct_type.a: type = struct_type {.a: %T.as_type} [symbolic]
-// CHECK:STDOUT:   %pattern_type.ea1: type = pattern_type %struct_type.a [symbolic]
+// CHECK:STDOUT:   %pattern_type.a66: type = pattern_type %struct_type.a [symbolic]
 // CHECK:STDOUT:   %A.type.00d: type = fn_type @A.loc4 [concrete]
 // CHECK:STDOUT:   %A.1db: %A.type.00d = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %struct_type.a [symbolic]
@@ -146,9 +146,9 @@ fn B() {
 // CHECK:STDOUT:     import Lib//default
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Lib.Z: type = import_ref Lib//default, Z, loaded [concrete = constants.%Z.type]
-// CHECK:STDOUT:   %Lib.import_ref.f88 = import_ref Lib//default, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Lib.import_ref.9e6 = import_ref Lib//default, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Lib.A: %A.type.fad = import_ref Lib//default, A, loaded [concrete = constants.%A.7a0]
-// CHECK:STDOUT:   %Lib.import_ref.be7: %Z.type = import_ref Lib//default, loc4_6, loaded [symbolic = @A.1.%T (constants.%T)]
+// CHECK:STDOUT:   %Lib.import_ref.1b2: %Z.type = import_ref Lib//default, loc4_6, loaded [symbolic = @A.1.%T (constants.%T)]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -159,9 +159,9 @@ fn B() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Lib.import = import Lib
 // CHECK:STDOUT:   %A.decl: %A.type.00d = fn_decl @A.loc4 [concrete = constants.%A.1db] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.3dd = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @A.loc4.%pattern_type (%pattern_type.ea1) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @A.loc4.%pattern_type (%pattern_type.ea1) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.e5e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @A.loc4.%pattern_type (%pattern_type.a66) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @A.loc4.%pattern_type (%pattern_type.a66) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc4_13: type = splice_block %Z.ref [concrete = constants.%Z.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -183,7 +183,7 @@ fn B() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Lib.import_ref.f88
+// CHECK:STDOUT:   .Self = imports.%Lib.import_ref.9e6
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -191,7 +191,7 @@ fn B() {
 // CHECK:STDOUT:   %T.loc4_6.1: %Z.type = bind_symbolic_name T, 0 [symbolic = %T.loc4_6.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc4_25.1: type = facet_access_type %T.loc4_6.1 [symbolic = %T.as_type.loc4_25.1 (constants.%T.as_type)]
 // CHECK:STDOUT:   %struct_type.a.loc4_26.1: type = struct_type {.a: @A.loc4.%T.as_type.loc4_25.1 (%T.as_type)} [symbolic = %struct_type.a.loc4_26.1 (constants.%struct_type.a)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %struct_type.a.loc4_26.1 [symbolic = %pattern_type (constants.%pattern_type.ea1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %struct_type.a.loc4_26.1 [symbolic = %pattern_type (constants.%pattern_type.a66)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %struct_type.a.loc4_26.1 [symbolic = %require_complete (constants.%require_complete)]
@@ -214,11 +214,11 @@ fn B() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @A.1(imports.%Lib.import_ref.be7: %Z.type) [from "lib.carbon"] {
+// CHECK:STDOUT: generic fn @A.1(imports.%Lib.import_ref.1b2: %Z.type) [from "lib.carbon"] {
 // CHECK:STDOUT:   %T: %Z.type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic = %T.as_type (constants.%T.as_type)]
 // CHECK:STDOUT:   %struct_type.a: type = struct_type {.a: @A.1.%T.as_type (%T.as_type)} [symbolic = %struct_type.a (constants.%struct_type.a)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %struct_type.a [symbolic = %pattern_type (constants.%pattern_type.ea1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %struct_type.a [symbolic = %pattern_type (constants.%pattern_type.a66)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %struct_type.a [symbolic = %require_complete (constants.%require_complete)]
@@ -230,13 +230,13 @@ fn B() {
 // CHECK:STDOUT:   %T.loc4_6.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc4_25.1 => constants.%T.as_type
 // CHECK:STDOUT:   %struct_type.a.loc4_26.1 => constants.%struct_type.a
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ea1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a66
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.1(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %T.as_type => constants.%T.as_type
 // CHECK:STDOUT:   %struct_type.a => constants.%struct_type.a
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ea1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a66
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/function/generic/param_in_type.carbon b/toolchain/check/testdata/function/generic/param_in_type.carbon
index ab8917caa0de..e7331ec1781f 100644
--- a/toolchain/check/testdata/function/generic/param_in_type.carbon
+++ b/toolchain/check/testdata/function/generic/param_in_type.carbon
@@ -26,23 +26,23 @@ fn F(N:! i32, a: array(i32, N)*);
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.960 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.87c [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %N.51e, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method(%N.51e) [symbolic]
 // CHECK:STDOUT:   %array_type: type = array_type %Int.as.ImplicitAs.impl.Convert.call, %i32 [symbolic]
-// CHECK:STDOUT:   %ptr.0ad: type = ptr_type %array_type [symbolic]
-// CHECK:STDOUT:   %pattern_type.c7e: type = pattern_type %ptr.0ad [symbolic]
+// CHECK:STDOUT:   %ptr.bce: type = ptr_type %array_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.82b: type = pattern_type %ptr.bce [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -56,8 +56,8 @@ fn F(N:! i32, a: array(i32, N)*);
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -68,8 +68,8 @@ fn F(N:! i32, a: array(i32, N)*);
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
 // CHECK:STDOUT:     %N.patt: %pattern_type.7ce = symbolic_binding_pattern N, 0 [concrete]
-// CHECK:STDOUT:     %a.patt: @F.%pattern_type (%pattern_type.c7e) = binding_pattern a [concrete]
-// CHECK:STDOUT:     %a.param_patt: @F.%pattern_type (%pattern_type.c7e) = value_param_pattern %a.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %a.patt: @F.%pattern_type (%pattern_type.82b) = binding_pattern a [concrete]
+// CHECK:STDOUT:     %a.param_patt: @F.%pattern_type (%pattern_type.82b) = value_param_pattern %a.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc15_10: type = splice_block %i32.loc15_10 [concrete = constants.%i32] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
@@ -77,12 +77,12 @@ fn F(N:! i32, a: array(i32, N)*);
 // CHECK:STDOUT:       %i32.loc15_10: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %N.loc15_6.2: %i32 = bind_symbolic_name N, 0 [symbolic = %N.loc15_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:     %a.param: @F.%ptr.loc15_31.1 (%ptr.0ad) = value_param call_param0
-// CHECK:STDOUT:     %.loc15_31: type = splice_block %ptr.loc15_31.2 [symbolic = %ptr.loc15_31.1 (constants.%ptr.0ad)] {
+// CHECK:STDOUT:     %a.param: @F.%ptr.loc15_31.1 (%ptr.bce) = value_param call_param0
+// CHECK:STDOUT:     %.loc15_31: type = splice_block %ptr.loc15_31.2 [symbolic = %ptr.loc15_31.1 (constants.%ptr.bce)] {
 // CHECK:STDOUT:       %int_32.loc15_24: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32.loc15_24: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:       %N.ref: %i32 = name_ref N, %N.loc15_6.2 [symbolic = %N.loc15_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:       %impl.elem0: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
+// CHECK:STDOUT:       %impl.elem0: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
 // CHECK:STDOUT:       %bound_method.loc15_29.2: <bound method> = bound_method %N.ref, %impl.elem0 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
 // CHECK:STDOUT:       %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:       %bound_method.loc15_29.3: <bound method> = bound_method %N.ref, %specific_fn [symbolic = %bound_method.loc15_29.1 (constants.%bound_method)]
@@ -90,22 +90,22 @@ fn F(N:! i32, a: array(i32, N)*);
 // CHECK:STDOUT:       %.loc15_29.1: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc15_29.2 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc15_29.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:       %.loc15_29.2: Core.IntLiteral = converted %N.ref, %.loc15_29.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc15_29.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:       %array_type.loc15_30.2: type = array_type %.loc15_29.2, %i32.loc15_24 [symbolic = %array_type.loc15_30.1 (constants.%array_type)]
-// CHECK:STDOUT:       %ptr.loc15_31.2: type = ptr_type %array_type.loc15_30.2 [symbolic = %ptr.loc15_31.1 (constants.%ptr.0ad)]
+// CHECK:STDOUT:       %ptr.loc15_31.2: type = ptr_type %array_type.loc15_30.2 [symbolic = %ptr.loc15_31.1 (constants.%ptr.bce)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %a: @F.%ptr.loc15_31.1 (%ptr.0ad) = bind_name a, %a.param
+// CHECK:STDOUT:     %a: @F.%ptr.loc15_31.1 (%ptr.bce) = bind_name a, %a.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%N.loc15_6.2: %i32) {
 // CHECK:STDOUT:   %N.loc15_6.1: %i32 = bind_symbolic_name N, 0 [symbolic = %N.loc15_6.1 (constants.%N.51e)]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc15_6.1, constants.%Int.as.ImplicitAs.impl.Convert.960 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %N.loc15_6.1, constants.%Int.as.ImplicitAs.impl.Convert.87c [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound)]
 // CHECK:STDOUT:   %bound_method.loc15_29.1: <bound method> = bound_method %N.loc15_6.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc15_29.1 (constants.%bound_method)]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc15_29.1: init Core.IntLiteral = call %bound_method.loc15_29.1(%N.loc15_6.1) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc15_29.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:   %array_type.loc15_30.1: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc15_29.1, constants.%i32 [symbolic = %array_type.loc15_30.1 (constants.%array_type)]
-// CHECK:STDOUT:   %ptr.loc15_31.1: type = ptr_type %array_type.loc15_30.1 [symbolic = %ptr.loc15_31.1 (constants.%ptr.0ad)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr.loc15_31.1 [symbolic = %pattern_type (constants.%pattern_type.c7e)]
+// CHECK:STDOUT:   %ptr.loc15_31.1: type = ptr_type %array_type.loc15_30.1 [symbolic = %ptr.loc15_31.1 (constants.%ptr.bce)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr.loc15_31.1 [symbolic = %pattern_type (constants.%pattern_type.82b)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%a.param: @F.%ptr.loc15_31.1 (%ptr.0ad));
+// CHECK:STDOUT:   fn(%a.param: @F.%ptr.loc15_31.1 (%ptr.bce));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @F(constants.%N.51e) {
@@ -114,7 +114,7 @@ fn F(N:! i32, a: array(i32, N)*);
 // CHECK:STDOUT:   %bound_method.loc15_29.1 => constants.%bound_method
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc15_29.1 => constants.%Int.as.ImplicitAs.impl.Convert.call
 // CHECK:STDOUT:   %array_type.loc15_30.1 => constants.%array_type
-// CHECK:STDOUT:   %ptr.loc15_31.1 => constants.%ptr.0ad
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c7e
+// CHECK:STDOUT:   %ptr.loc15_31.1 => constants.%ptr.bce
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.82b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/function/generic/resolve_used.carbon b/toolchain/check/testdata/function/generic/resolve_used.carbon
index 5cf25967642b..f7dd0644c373 100644
--- a/toolchain/check/testdata/function/generic/resolve_used.carbon
+++ b/toolchain/check/testdata/function/generic/resolve_used.carbon
@@ -56,13 +56,13 @@ fn CallNegative() {
 // CHECK:STDOUT:   %pattern_type.8963eb.1: type = pattern_type %Int.49d0e6.1 [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.543: <witness> = impl_witness imports.%Destroy.impl_witness_table.72b, @Int.as.Destroy.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.733: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.011: %Int.as.Destroy.impl.Op.type.733 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.b15: <witness> = impl_witness imports.%Destroy.impl_witness_table.fea, @Int.as.Destroy.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.a60: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.340: %Int.as.Destroy.impl.Op.type.a60 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.784: type = ptr_type %Int.49d0e6.1 [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.abb: %Destroy.type = facet_value %Int.49d0e6.1, (%Destroy.impl_witness.543) [symbolic]
-// CHECK:STDOUT:   %.94a: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.abb [symbolic]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1f5: <specific function> = specific_function %Int.as.Destroy.impl.Op.011, @Int.as.Destroy.impl.Op(%N) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.80c: %Destroy.type = facet_value %Int.49d0e6.1, (%Destroy.impl_witness.b15) [symbolic]
+// CHECK:STDOUT:   %.11a: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.80c [symbolic]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.f79: <specific function> = specific_function %Int.as.Destroy.impl.Op.340, @Int.as.Destroy.impl.Op(%N) [symbolic]
 // CHECK:STDOUT:   %require_complete.0f5: <witness> = require_complete_type %ptr.784 [symbolic]
 // CHECK:STDOUT:   %CallNegative.type: type = fn_type @CallNegative [concrete]
 // CHECK:STDOUT:   %CallNegative: %CallNegative.type = struct_value () [concrete]
@@ -71,13 +71,13 @@ fn CallNegative() {
 // CHECK:STDOUT:   %i0: type = class_type @Int, @Int(%int_0) [concrete]
 // CHECK:STDOUT:   %complete_type.d94: <witness> = complete_type_witness <error> [concrete]
 // CHECK:STDOUT:   %pattern_type.47b: type = pattern_type %i0 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.951: <witness> = impl_witness imports.%Destroy.impl_witness_table.72b, @Int.as.Destroy.impl(%int_0) [concrete]
-// CHECK:STDOUT:   %Destroy.facet.4e0: %Destroy.type = facet_value %i0, (%Destroy.impl_witness.951) [concrete]
-// CHECK:STDOUT:   %.53d: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.4e0 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.be2: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_0) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.a22: %Int.as.Destroy.impl.Op.type.be2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.e65: <witness> = impl_witness imports.%Destroy.impl_witness_table.fea, @Int.as.Destroy.impl(%int_0) [concrete]
+// CHECK:STDOUT:   %Destroy.facet.0e5: %Destroy.type = facet_value %i0, (%Destroy.impl_witness.e65) [concrete]
+// CHECK:STDOUT:   %.8fe: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.0e5 [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.742: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_0) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.2da: %Int.as.Destroy.impl.Op.type.742 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.3f1: type = ptr_type %i0 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.f1a: <specific function> = specific_function %Int.as.Destroy.impl.Op.a22, @Int.as.Destroy.impl.Op(%int_0) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.8a7: <specific function> = specific_function %Int.as.Destroy.impl.Op.2da, @Int.as.Destroy.impl.Op(%int_0) [concrete]
 // CHECK:STDOUT:   %complete_type.588: <witness> = complete_type_witness %ptr.3f1 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -92,8 +92,8 @@ fn CallNegative() {
 // CHECK:STDOUT:   %Core.IntLiteral: %IntLiteral.type = import_ref Core//prelude/parts/int_literal, IntLiteral, loaded [concrete = constants.%IntLiteral]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Core.import_ref.f64: @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type.733) = import_ref Core//prelude/parts/int, loc9_29, loaded [symbolic = @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op.011)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.72b = impl_witness_table (%Core.import_ref.f64), @Int.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.16a: @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type.a60) = import_ref Core//prelude/parts/int, loc9_29, loaded [symbolic = @Int.as.Destroy.impl.%Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op.340)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.fea = impl_witness_table (%Core.import_ref.16a), @Int.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -126,12 +126,12 @@ fn CallNegative() {
 // CHECK:STDOUT:   %Int.loc15_20.2: type = class_type @Int, @Int(%N.loc4_19.1) [symbolic = %Int.loc15_20.2 (constants.%Int.49d0e6.1)]
 // CHECK:STDOUT:   %require_complete.loc15_20: <witness> = require_complete_type %Int.loc15_20.2 [symbolic = %require_complete.loc15_20 (constants.%require_complete.b4f426.1)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %Int.loc15_20.2 [symbolic = %pattern_type (constants.%pattern_type.8963eb.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.72b, @Int.as.Destroy.impl(%N.loc4_19.1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.543)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int.loc15_20.2, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.abb)]
-// CHECK:STDOUT:   %.loc15_3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc15_3 (constants.%.94a)]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N.loc4_19.1) [symbolic = %Int.as.Destroy.impl.Op.type (constants.%Int.as.Destroy.impl.Op.type.733)]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op: @ErrorIfNIsZero.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type.733) = struct_value () [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op.011)]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op, @Int.as.Destroy.impl.Op(%N.loc4_19.1) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn.1f5)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.fea, @Int.as.Destroy.impl(%N.loc4_19.1) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.b15)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int.loc15_20.2, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.80c)]
+// CHECK:STDOUT:   %.loc15_3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc15_3 (constants.%.11a)]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%N.loc4_19.1) [symbolic = %Int.as.Destroy.impl.Op.type (constants.%Int.as.Destroy.impl.Op.type.a60)]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op: @ErrorIfNIsZero.%Int.as.Destroy.impl.Op.type (%Int.as.Destroy.impl.Op.type.a60) = struct_value () [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op.340)]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op, @Int.as.Destroy.impl.Op(%N.loc4_19.1) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn.f79)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %Int.loc15_20.2 [symbolic = %ptr (constants.%ptr.784)]
 // CHECK:STDOUT:   %require_complete.loc15_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc15_3 (constants.%require_complete.0f5)]
 // CHECK:STDOUT:
@@ -149,9 +149,9 @@ fn CallNegative() {
 // CHECK:STDOUT:       %Int.loc15_20.1: type = class_type @Int, @Int(constants.%N) [symbolic = %Int.loc15_20.2 (constants.%Int.49d0e6.1)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %v: ref @ErrorIfNIsZero.%Int.loc15_20.2 (%Int.49d0e6.1) = bind_name v, %v.var
-// CHECK:STDOUT:     %impl.elem0: @ErrorIfNIsZero.%.loc15_3 (%.94a) = impl_witness_access constants.%Destroy.impl_witness.543, element0 [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op.011)]
+// CHECK:STDOUT:     %impl.elem0: @ErrorIfNIsZero.%.loc15_3 (%.11a) = impl_witness_access constants.%Destroy.impl_witness.b15, element0 [symbolic = %Int.as.Destroy.impl.Op (constants.%Int.as.Destroy.impl.Op.340)]
 // CHECK:STDOUT:     %bound_method.loc15_3.1: <bound method> = bound_method %v.var, %impl.elem0
-// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Destroy.impl.Op(constants.%N) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn.1f5)]
+// CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Destroy.impl.Op(constants.%N) [symbolic = %Int.as.Destroy.impl.Op.specific_fn (constants.%Int.as.Destroy.impl.Op.specific_fn.f79)]
 // CHECK:STDOUT:     %bound_method.loc15_3.2: <bound method> = bound_method %v.var, %specific_fn
 // CHECK:STDOUT:     %addr: @ErrorIfNIsZero.%ptr (%ptr.784) = addr_of %v.var
 // CHECK:STDOUT:     %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc15_3.2(%addr)
@@ -179,12 +179,12 @@ fn CallNegative() {
 // CHECK:STDOUT:   %Int.loc15_20.2 => constants.%i0
 // CHECK:STDOUT:   %require_complete.loc15_20 => constants.%complete_type.d94
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.47b
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.951
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.4e0
-// CHECK:STDOUT:   %.loc15_3 => constants.%.53d
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type => constants.%Int.as.Destroy.impl.Op.type.be2
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op => constants.%Int.as.Destroy.impl.Op.a22
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn => constants.%Int.as.Destroy.impl.Op.specific_fn.f1a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e65
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.0e5
+// CHECK:STDOUT:   %.loc15_3 => constants.%.8fe
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type => constants.%Int.as.Destroy.impl.Op.type.742
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op => constants.%Int.as.Destroy.impl.Op.2da
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn => constants.%Int.as.Destroy.impl.Op.specific_fn.8a7
 // CHECK:STDOUT:   %ptr => constants.%ptr.3f1
 // CHECK:STDOUT:   %require_complete.loc15_3 => constants.%complete_type.588
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/function/generic/return_slot.carbon b/toolchain/check/testdata/function/generic/return_slot.carbon
index d8c9642bb29f..f872b8d0b520 100644
--- a/toolchain/check/testdata/function/generic/return_slot.carbon
+++ b/toolchain/check/testdata/function/generic/return_slot.carbon
@@ -39,7 +39,7 @@ fn G() {
 // CHECK:STDOUT:   %Wrap.Make.eb2: %Wrap.Make.type.652 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c6a: <witness> = impl_witness @Wrap.%Destroy.impl_witness_table, @Wrap.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.931: <witness> = impl_witness @Wrap.%Destroy.impl_witness_table, @Wrap.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.b45: type = ptr_type %Wrap.af6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.3b2: type = pattern_type %ptr.b45 [symbolic]
 // CHECK:STDOUT:   %Wrap.as.Destroy.impl.Op.type: type = fn_type @Wrap.as.Destroy.impl.Op, @Wrap.as.Destroy.impl(%T) [symbolic]
@@ -58,7 +58,7 @@ fn G() {
 // CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
 // CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %array_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -82,14 +82,14 @@ fn G() {
 // CHECK:STDOUT:   %Wrap.Make.type.708: type = fn_type @Wrap.Make, @Wrap(%C) [concrete]
 // CHECK:STDOUT:   %Wrap.Make.e4b: %Wrap.Make.type.708 = struct_value () [concrete]
 // CHECK:STDOUT:   %Wrap.Make.specific_fn.834: <specific function> = specific_function %Wrap.Make.e4b, @Wrap.Make(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %complete_type.782: <witness> = complete_type_witness %empty_tuple.type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -125,7 +125,7 @@ fn G() {
 // CHECK:STDOUT: generic impl @Wrap.as.Destroy.impl(@Wrap.%T.loc15_12.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Wrap: type = class_type @Wrap, @Wrap(%T) [symbolic = %Wrap (constants.%Wrap.af6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Wrap.%Destroy.impl_witness_table, @Wrap.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c6a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Wrap.%Destroy.impl_witness_table, @Wrap.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.931)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Wrap.as.Destroy.impl.Op.type: type = fn_type @Wrap.as.Destroy.impl.Op, @Wrap.as.Destroy.impl(%T) [symbolic = %Wrap.as.Destroy.impl.Op.type (constants.%Wrap.as.Destroy.impl.Op.type)]
@@ -186,7 +186,7 @@ fn G() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Wrap.af6 [symbolic = @Wrap.as.Destroy.impl.%Wrap (constants.%Wrap.af6)]
 // CHECK:STDOUT:     impl_decl @Wrap.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Wrap.as.Destroy.impl.%Wrap.as.Destroy.impl.Op.decl), @Wrap.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Wrap.as.Destroy.impl(constants.%T) [symbolic = @Wrap.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.c6a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Wrap.as.Destroy.impl(constants.%T) [symbolic = @Wrap.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.931)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -206,7 +206,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.arr.5f2 [concrete = constants.%complete_type.22a]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -309,13 +309,13 @@ fn G() {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %c.var, constants.%C.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc24: %ptr.019 = addr_of %c.var
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %C.as.Destroy.impl.Op.bound(%addr.loc24)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc23: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc23: %ptr.843 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc23(%addr.loc23)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc22: <bound method> = bound_method %a.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc22: %ptr.235 = addr_of %a.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc22(%addr.loc22)
@@ -344,7 +344,7 @@ fn G() {
 // CHECK:STDOUT: specific @Wrap.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Wrap => constants.%Wrap.af6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c6a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.931
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Wrap.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/function/generic/type_param.carbon b/toolchain/check/testdata/function/generic/type_param.carbon
index ed5fb2dd881c..a773c5c385c2 100644
--- a/toolchain/check/testdata/function/generic/type_param.carbon
+++ b/toolchain/check/testdata/function/generic/type_param.carbon
@@ -37,8 +37,8 @@ fn F(T:! type) {
 // CHECK:STDOUT:   %require_complete.132: <witness> = require_complete_type %ptr.a13 [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %ptr.79f, @Destroy [symbolic]
 // CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %ptr.79f, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.ea9: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.ea9 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.dc4: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.dc4 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -76,8 +76,8 @@ fn F(T:! type) {
 // CHECK:STDOUT:   %pattern_type.loc17: type = pattern_type %T.loc15_6.1 [symbolic = %pattern_type.loc17 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %ptr.loc16_11.2, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
 // CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %ptr.loc16_11.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet)]
-// CHECK:STDOUT:   %.loc16_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc16_3.2 (constants.%.ea9)]
-// CHECK:STDOUT:   %impl.elem0.loc16_3.2: @F.%.loc16_3.2 (%.ea9) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc16_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc16_3.2 (constants.%.dc4)]
+// CHECK:STDOUT:   %impl.elem0.loc16_3.2: @F.%.loc16_3.2 (%.dc4) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc16_3.2: <specific function> = specific_impl_function %impl.elem0.loc16_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc16_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:   %ptr.loc16_3: type = ptr_type %ptr.loc16_11.2 [symbolic = %ptr.loc16_3 (constants.%ptr.a13)]
 // CHECK:STDOUT:   %require_complete.loc16_3: <witness> = require_complete_type %ptr.loc16_3 [symbolic = %require_complete.loc16_3 (constants.%require_complete.132)]
@@ -103,7 +103,7 @@ fn F(T:! type) {
 // CHECK:STDOUT:     %T.ref.loc17: type = name_ref T, %T.loc15_6.2 [symbolic = %T.loc15_6.1 (constants.%T)]
 // CHECK:STDOUT:     %.loc17_14.2: @F.%T.loc15_6.1 (%T) = bind_value %.loc17_14.1
 // CHECK:STDOUT:     %n: @F.%T.loc15_6.1 (%T) = bind_name n, %.loc17_14.2
-// CHECK:STDOUT:     %impl.elem0.loc16_3.1: @F.%.loc16_3.2 (%.ea9) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc16_3.1: @F.%.loc16_3.2 (%.dc4) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc16_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc16_3.1: <bound method> = bound_method %p.var, %impl.elem0.loc16_3.1
 // CHECK:STDOUT:     %specific_impl_fn.loc16_3.1: <specific function> = specific_impl_function %impl.elem0.loc16_3.1, @Destroy.Op(constants.%Destroy.facet) [symbolic = %specific_impl_fn.loc16_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc16_3.2: <bound method> = bound_method %p.var, %specific_impl_fn.loc16_3.1
diff --git a/toolchain/check/testdata/function/generic/undefined.carbon b/toolchain/check/testdata/function/generic/undefined.carbon
index 2029c5518897..c918b9e89567 100644
--- a/toolchain/check/testdata/function/generic/undefined.carbon
+++ b/toolchain/check/testdata/function/generic/undefined.carbon
@@ -77,18 +77,18 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Defined.specific_fn: <specific function> = specific_function %Defined, @Defined(%i32) [concrete]
@@ -103,8 +103,8 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/parts/as, As, loaded [concrete = constants.%As.generic]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -161,7 +161,7 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc9: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc9: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc9_20.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_20.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -209,18 +209,18 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Defined.specific_fn: <specific function> = specific_function %Defined, @Defined(%i32) [concrete]
@@ -236,8 +236,8 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/parts/as, As, loaded [concrete = constants.%As.generic]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -310,7 +310,7 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc7: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc7: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc7_20.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_20.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -356,18 +356,18 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Undefined.specific_fn: <specific function> = specific_function %Undefined, @Undefined(%i32) [concrete]
@@ -382,8 +382,8 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/parts/as, As, loaded [concrete = constants.%As.generic]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -433,7 +433,7 @@ fn CallUndefined() -> i32 {
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc14: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc14: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc14_22.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc14_22.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/generic/call_basic_depth.carbon b/toolchain/check/testdata/generic/call_basic_depth.carbon
index fa07dd70a839..5c742c14f064 100644
--- a/toolchain/check/testdata/generic/call_basic_depth.carbon
+++ b/toolchain/check/testdata/generic/call_basic_depth.carbon
@@ -57,7 +57,7 @@ fn M() {
 // CHECK:STDOUT:   %C.Cfn: %C.Cfn.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -86,26 +86,26 @@ fn M() {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %F.specific_fn.501: <specific function> = specific_function %F, @F(%i32) [concrete]
 // CHECK:STDOUT:   %G.specific_fn: <specific function> = specific_function %G, @G(%i32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %H.specific_fn.aac: <specific function> = specific_function %H, @H(%i32) [concrete]
 // CHECK:STDOUT:   %C.Cfn.specific_fn.7b2: <specific function> = specific_function %C.Cfn, @C.Cfn(%i32) [concrete]
 // CHECK:STDOUT: }
@@ -121,8 +121,8 @@ fn M() {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -218,7 +218,7 @@ fn M() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -325,7 +325,7 @@ fn M() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %n.var: ref %i32 = var %n.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc39_3.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc39_3.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -359,13 +359,13 @@ fn M() {
 // CHECK:STDOUT:   %.loc43: %i32 = bind_value %n.ref.loc43
 // CHECK:STDOUT:   %G.call: init %i32 = call %G.specific_fn(%.loc43)
 // CHECK:STDOUT:   assign %m.ref, %G.call
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc40: <bound method> = bound_method %m.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc40: <bound method> = bound_method %m.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc40: <bound method> = bound_method %m.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc40: %ptr.235 = addr_of %m.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc40: init %empty_tuple.type = call %bound_method.loc40(%addr.loc40)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc39: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc39: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc39_3.3: <bound method> = bound_method %n.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc39: %ptr.235 = addr_of %n.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc39: init %empty_tuple.type = call %bound_method.loc39_3.3(%addr.loc39)
diff --git a/toolchain/check/testdata/generic/complete_type.carbon b/toolchain/check/testdata/generic/complete_type.carbon
index e7e551a97d7d..0ea55b337409 100644
--- a/toolchain/check/testdata/generic/complete_type.carbon
+++ b/toolchain/check/testdata/generic/complete_type.carbon
@@ -94,7 +94,7 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %A.elem.1ce: type = unbound_element_type %A.130, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d93: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e1: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.ca9: type = ptr_type %A.130 [symbolic]
 // CHECK:STDOUT:   %pattern_type.09b: type = pattern_type %ptr.ca9 [symbolic]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%T) [symbolic]
@@ -108,7 +108,7 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %A.elem.4ce: type = unbound_element_type %A.1d4, %B [concrete]
 // CHECK:STDOUT:   %struct_type.v.d45: type = struct_type {.v: %B} [concrete]
 // CHECK:STDOUT:   %complete_type.1df: <witness> = complete_type_witness %struct_type.v.d45 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -159,7 +159,7 @@ fn G() { F(B); }
 // CHECK:STDOUT: generic impl @A.as.Destroy.impl(@A.%T.loc6_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %A: type = class_type @A, @A(%T) [symbolic = %A (constants.%A.130)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7e1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%T) [symbolic = %A.as.Destroy.impl.Op.type (constants.%A.as.Destroy.impl.Op.type)]
@@ -205,7 +205,7 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -229,7 +229,7 @@ fn G() { F(B); }
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A.130 [symbolic = @A.as.Destroy.impl.%A (constants.%A.130)]
 // CHECK:STDOUT:     impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%T) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%T) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7e1)]
 // CHECK:STDOUT:     %complete_type.loc14_1.1: <witness> = complete_type_witness constants.%struct_type.v.ff1 [symbolic = %complete_type.loc14_1.2 (constants.%complete_type.460)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc14_1.1
 // CHECK:STDOUT:
@@ -265,7 +265,7 @@ fn G() { F(B); }
 // CHECK:STDOUT: specific @A.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %A => constants.%A.130
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d93
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as.Destroy.impl.Op(constants.%T) {
@@ -304,23 +304,23 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %T [symbolic]
 // CHECK:STDOUT:   %require_complete.6e5: <witness> = require_complete_type %ptr.79f [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.713: %Destroy.type = facet_value %T, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.a63: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.713 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.a63 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet.713) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.572: %Destroy.type = facet_value %T, (%Destroy.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.f8c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.572 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.f8c = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet.572) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%B) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.facet.d69: %Destroy.type = facet_value %B, (%Destroy.impl_witness.40d) [concrete]
+// CHECK:STDOUT:   %Destroy.facet.2e6: %Destroy.type = facet_value %B, (%Destroy.impl_witness.190) [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %pattern_type.049: type = pattern_type %B [concrete]
-// CHECK:STDOUT:   %.1d8: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.d69 [concrete]
+// CHECK:STDOUT:   %.5e5: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.2e6 [concrete]
 // CHECK:STDOUT:   %complete_type.3bf: <witness> = complete_type_witness %ptr.e79 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -372,7 +372,7 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -387,9 +387,9 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %require_complete.loc7_10: <witness> = require_complete_type %T.loc6_6.1 [symbolic = %require_complete.loc7_10 (constants.%require_complete.4ae)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T.loc6_6.1 [symbolic = %pattern_type (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc6_6.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.loc6_6.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.713)]
-// CHECK:STDOUT:   %.loc7_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc7_3.2 (constants.%.a63)]
-// CHECK:STDOUT:   %impl.elem0.loc7_3.2: @F.%.loc7_3.2 (%.a63) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.loc6_6.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.572)]
+// CHECK:STDOUT:   %.loc7_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc7_3.2 (constants.%.f8c)]
+// CHECK:STDOUT:   %impl.elem0.loc7_3.2: @F.%.loc7_3.2 (%.f8c) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc7_3.2: <specific function> = specific_impl_function %impl.elem0.loc7_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T.loc6_6.1 [symbolic = %ptr (constants.%ptr.79f)]
 // CHECK:STDOUT:   %require_complete.loc7_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc7_3 (constants.%require_complete.6e5)]
@@ -403,9 +403,9 @@ fn G() { F(B); }
 // CHECK:STDOUT:     %v.var: ref @F.%T.loc6_6.1 (%T) = var %v.var_patt
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc6_6.2 [symbolic = %T.loc6_6.1 (constants.%T)]
 // CHECK:STDOUT:     %v: ref @F.%T.loc6_6.1 (%T) = bind_name v, %v.var
-// CHECK:STDOUT:     %impl.elem0.loc7_3.1: @F.%.loc7_3.2 (%.a63) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc7_3.1: @F.%.loc7_3.2 (%.f8c) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc7_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc7_3.1: <bound method> = bound_method %v.var, %impl.elem0.loc7_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc7_3.1: <specific function> = specific_impl_function %impl.elem0.loc7_3.1, @Destroy.Op(constants.%Destroy.facet.713) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %specific_impl_fn.loc7_3.1: <specific function> = specific_impl_function %impl.elem0.loc7_3.1, @Destroy.Op(constants.%Destroy.facet.572) [symbolic = %specific_impl_fn.loc7_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc7_3.2: <bound method> = bound_method %v.var, %specific_impl_fn.loc7_3.1
 // CHECK:STDOUT:     %addr: @F.%ptr (%ptr.79f) = addr_of %v.var
 // CHECK:STDOUT:     %.loc7_3.1: init %empty_tuple.type = call %bound_method.loc7_3.2(%addr)
@@ -434,9 +434,9 @@ fn G() { F(B); }
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc7_10 => constants.%complete_type.357
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.049
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.40d
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.d69
-// CHECK:STDOUT:   %.loc7_3.2 => constants.%.1d8
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.190
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.2e6
+// CHECK:STDOUT:   %.loc7_3.2 => constants.%.5e5
 // CHECK:STDOUT:   %impl.elem0.loc7_3.2 => constants.%B.as.Destroy.impl.Op
 // CHECK:STDOUT:   %specific_impl_fn.loc7_3.2 => constants.%B.as.Destroy.impl.Op
 // CHECK:STDOUT:   %ptr => constants.%ptr.e79
@@ -457,27 +457,27 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.bc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.46f: %T.as.Destroy.impl.Op.type.bc9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.305: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e3a: %T.as.Destroy.impl.Op.type.305 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %T [symbolic]
 // CHECK:STDOUT:   %require_complete.6e5: <witness> = require_complete_type %ptr.79f [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.713: %Destroy.type = facet_value %T, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.a63: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.713 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.a63 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet.713) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.572: %Destroy.type = facet_value %T, (%Destroy.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.f8c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.572 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.f8c = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet.572) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%B) [concrete]
 // CHECK:STDOUT:   %pattern_type.049: type = pattern_type %B [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.39d: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%B) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1a6: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%B) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.3c2: %T.as.Destroy.impl.Op.type.1a6 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.0e6: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%B) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0b8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%B) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d2b: %T.as.Destroy.impl.Op.type.0b8 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %ptr.e79 [concrete]
-// CHECK:STDOUT:   %Destroy.facet.331: %Destroy.type = facet_value %B, (%Destroy.impl_witness.39d) [concrete]
-// CHECK:STDOUT:   %.c16: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.331 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.3c2, @T.as.Destroy.impl.Op(%B) [concrete]
+// CHECK:STDOUT:   %Destroy.facet.b44: %Destroy.type = facet_value %B, (%Destroy.impl_witness.0e6) [concrete]
+// CHECK:STDOUT:   %.61c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.b44 [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d2b, @T.as.Destroy.impl.Op(%B) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -487,8 +487,8 @@ fn G() { F(B); }
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Core.import_ref.0b9: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.46f)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @T.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.efe: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.305) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.e3a)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.efe), @T.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -518,9 +518,9 @@ fn G() { F(B); }
 // CHECK:STDOUT:   %require_complete.loc13_10: <witness> = require_complete_type %T.loc6_6.1 [symbolic = %require_complete.loc13_10 (constants.%require_complete.4ae)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T.loc6_6.1 [symbolic = %pattern_type (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc6_6.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.loc6_6.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.713)]
-// CHECK:STDOUT:   %.loc13_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc13_3.2 (constants.%.a63)]
-// CHECK:STDOUT:   %impl.elem0.loc13_3.2: @F.%.loc13_3.2 (%.a63) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.loc6_6.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.572)]
+// CHECK:STDOUT:   %.loc13_3.2: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc13_3.2 (constants.%.f8c)]
+// CHECK:STDOUT:   %impl.elem0.loc13_3.2: @F.%.loc13_3.2 (%.f8c) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc13_3.2: <specific function> = specific_impl_function %impl.elem0.loc13_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc13_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T.loc6_6.1 [symbolic = %ptr (constants.%ptr.79f)]
 // CHECK:STDOUT:   %require_complete.loc13_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc13_3 (constants.%require_complete.6e5)]
@@ -534,9 +534,9 @@ fn G() { F(B); }
 // CHECK:STDOUT:     %v.var: ref @F.%T.loc6_6.1 (%T) = var %v.var_patt
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc6_6.2 [symbolic = %T.loc6_6.1 (constants.%T)]
 // CHECK:STDOUT:     %v: ref @F.%T.loc6_6.1 (%T) = bind_name v, %v.var
-// CHECK:STDOUT:     %impl.elem0.loc13_3.1: @F.%.loc13_3.2 (%.a63) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc13_3.1: @F.%.loc13_3.2 (%.f8c) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc13_3.1: <bound method> = bound_method %v.var, %impl.elem0.loc13_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc13_3.1: <specific function> = specific_impl_function %impl.elem0.loc13_3.1, @Destroy.Op(constants.%Destroy.facet.713) [symbolic = %specific_impl_fn.loc13_3.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %specific_impl_fn.loc13_3.1: <specific function> = specific_impl_function %impl.elem0.loc13_3.1, @Destroy.Op(constants.%Destroy.facet.572) [symbolic = %specific_impl_fn.loc13_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc13_3.2: <bound method> = bound_method %v.var, %specific_impl_fn.loc13_3.1
 // CHECK:STDOUT:     %addr: @F.%ptr (%ptr.79f) = addr_of %v.var
 // CHECK:STDOUT:     %.loc13_3.1: init %empty_tuple.type = call %bound_method.loc13_3.2(%addr)
@@ -563,10 +563,10 @@ fn G() { F(B); }
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc13_10 => <error>
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.049
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.39d
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.331
-// CHECK:STDOUT:   %.loc13_3.2 => constants.%.c16
-// CHECK:STDOUT:   %impl.elem0.loc13_3.2 => constants.%T.as.Destroy.impl.Op.3c2
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.0e6
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.b44
+// CHECK:STDOUT:   %.loc13_3.2 => constants.%.61c
+// CHECK:STDOUT:   %impl.elem0.loc13_3.2 => constants.%T.as.Destroy.impl.Op.d2b
 // CHECK:STDOUT:   %specific_impl_fn.loc13_3.2 => constants.%T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %ptr => constants.%ptr.e79
 // CHECK:STDOUT:   %require_complete.loc13_3 => constants.%complete_type
diff --git a/toolchain/check/testdata/generic/dependent_param.carbon b/toolchain/check/testdata/generic/dependent_param.carbon
index 8a95210ca3a3..08084b8ec22a 100644
--- a/toolchain/check/testdata/generic/dependent_param.carbon
+++ b/toolchain/check/testdata/generic/dependent_param.carbon
@@ -42,7 +42,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %Inner.Get.118: %Inner.Get.type.889 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8af: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ca6: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %ptr.59b: type = ptr_type %Inner.879 [symbolic]
 // CHECK:STDOUT:   %pattern_type.75d: type = pattern_type %ptr.59b [symbolic]
@@ -50,7 +50,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op: %Inner.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a35: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7ee: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.6ff: type = ptr_type %Outer.9d6 [symbolic]
 // CHECK:STDOUT:   %pattern_type.07e: type = pattern_type %ptr.6ff [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic]
@@ -68,18 +68,18 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [concrete]
 // CHECK:STDOUT:   %Inner.025: type = class_type @Inner, @Inner(%i32, %int_42.c68) [concrete]
@@ -99,8 +99,8 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -132,7 +132,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %U: @Inner.as.Destroy.impl.%T (%T) = bind_symbolic_name U, 1 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %Inner: type = class_type @Inner, @Inner(%T, %U) [symbolic = %Inner (constants.%Inner.879)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.8af)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Inner.%Destroy.impl_witness_table, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ca6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Inner.as.Destroy.impl.Op.type: type = fn_type @Inner.as.Destroy.impl.Op, @Inner.as.Destroy.impl(%T, %U) [symbolic = %Inner.as.Destroy.impl.Op.type (constants.%Inner.as.Destroy.impl.Op.type)]
@@ -161,7 +161,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%T.loc4_13.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%T) [symbolic = %Outer (constants.%Outer.9d6)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%T) [symbolic = %Outer.as.Destroy.impl.Op.type (constants.%Outer.as.Destroy.impl.Op.type)]
@@ -207,7 +207,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a35)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%T) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7ee)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -240,7 +240,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Inner.879 [symbolic = @Inner.as.Destroy.impl.%Inner (constants.%Inner.879)]
 // CHECK:STDOUT:     impl_decl @Inner.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Inner.as.Destroy.impl.%Inner.as.Destroy.impl.Op.decl), @Inner.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.8af)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Inner.as.Destroy.impl(constants.%T, constants.%U) [symbolic = @Inner.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ca6)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -299,7 +299,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %.loc10_24: %Inner.type.bac = specific_constant @Outer.%Inner.decl, @Outer(constants.%i32) [concrete = constants.%Inner.generic.ba0]
 // CHECK:STDOUT:   %Inner.ref: %Inner.type.bac = name_ref Inner, %.loc10_24 [concrete = constants.%Inner.generic.ba0]
 // CHECK:STDOUT:   %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc10_33.1: <bound method> = bound_method constants.%int_42.20e, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc10_33.2: <bound method> = bound_method constants.%int_42.20e, %specific_fn [concrete = constants.%bound_method]
@@ -343,7 +343,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %Inner => constants.%Inner.879
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.8af
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ca6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Inner.as.Destroy.impl.Op(constants.%T, constants.%U) {
@@ -357,7 +357,7 @@ var n: i32 = Outer(i32).Inner(42).Get();
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %Outer => constants.%Outer.9d6
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a35
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7ee
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%T) {
diff --git a/toolchain/check/testdata/generic/dot_self_symbolic_type.carbon b/toolchain/check/testdata/generic/dot_self_symbolic_type.carbon
index 7804f9f2dccc..e2f5ecaa0d6f 100644
--- a/toolchain/check/testdata/generic/dot_self_symbolic_type.carbon
+++ b/toolchain/check/testdata/generic/dot_self_symbolic_type.carbon
@@ -83,17 +83,17 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %C.type: type = generic_class_type @C [concrete]
 // CHECK:STDOUT:   %C.generic: %C.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.f2e1b5.1: type = class_type @C, @C(%CC) [symbolic]
-// CHECK:STDOUT:   %A.type.75a876.2: type = facet_type <@A, @A(%CC)> [symbolic]
-// CHECK:STDOUT:   %.Self.fafe34.1: %A.type.75a876.2 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %A.type.8069e2.2: type = facet_type <@A, @A(%CC)> [symbolic]
+// CHECK:STDOUT:   %.Self.0d6bb0.1: %A.type.8069e2.2 = bind_symbolic_name .Self [symbolic]
 // CHECK:STDOUT:   %A.assoc_type.ed3b32.2: type = assoc_entity_type @A, @A(%CC) [symbolic]
 // CHECK:STDOUT:   %assoc0.ce3509.2: %A.assoc_type.ed3b32.2 = assoc_entity element0, @A.%X [symbolic]
-// CHECK:STDOUT:   %require_complete.6da: <witness> = require_complete_type %A.type.75a876.2 [symbolic]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.fafe34.1 [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness.4e49fb.1: <witness> = lookup_impl_witness %.Self.fafe34.1, @A, @A(%CC) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.452c56.1: type = impl_witness_access %A.lookup_impl_witness.4e49fb.1, element0 [symbolic]
-// CHECK:STDOUT:   %A_where.type.5b404c.1: type = facet_type <@A, @A(%CC) where %impl.elem0.452c56.1 = %CC> [symbolic]
-// CHECK:STDOUT:   %T.dad: %A_where.type.5b404c.1 = bind_symbolic_name T, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2e9: type = pattern_type %A_where.type.5b404c.1 [symbolic]
+// CHECK:STDOUT:   %require_complete.ed4: <witness> = require_complete_type %A.type.8069e2.2 [symbolic]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.0d6bb0.1 [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness.788374.1: <witness> = lookup_impl_witness %.Self.0d6bb0.1, @A, @A(%CC) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.55a52f.1: type = impl_witness_access %A.lookup_impl_witness.788374.1, element0 [symbolic]
+// CHECK:STDOUT:   %A_where.type.26ce47.1: type = facet_type <@A, @A(%CC) where %impl.elem0.55a52f.1 = %CC> [symbolic]
+// CHECK:STDOUT:   %T.3d2: %A_where.type.26ce47.1 = bind_symbolic_name T, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.132: type = pattern_type %A_where.type.26ce47.1 [symbolic]
 // CHECK:STDOUT:   %C.F.type.704ae6.1: type = fn_type @C.F, @C(%CC) [symbolic]
 // CHECK:STDOUT:   %C.F.2d247e.1: %C.F.type.704ae6.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
@@ -107,20 +107,20 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %C.F.type.704ae6.2: type = fn_type @C.F, @C(%DD) [symbolic]
 // CHECK:STDOUT:   %C.F.2d247e.2: %C.F.type.704ae6.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.389: <witness> = require_complete_type %C.f2e1b5.2 [symbolic]
-// CHECK:STDOUT:   %A.type.75a876.3: type = facet_type <@A, @A(%DD)> [symbolic]
-// CHECK:STDOUT:   %.Self.fafe34.2: %A.type.75a876.3 = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness.4e49fb.2: <witness> = lookup_impl_witness %.Self.fafe34.2, @A, @A(%DD) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.452c56.2: type = impl_witness_access %A.lookup_impl_witness.4e49fb.2, element0 [symbolic]
+// CHECK:STDOUT:   %A.type.8069e2.3: type = facet_type <@A, @A(%DD)> [symbolic]
+// CHECK:STDOUT:   %.Self.0d6bb0.2: %A.type.8069e2.3 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness.788374.2: <witness> = lookup_impl_witness %.Self.0d6bb0.2, @A, @A(%DD) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.55a52f.2: type = impl_witness_access %A.lookup_impl_witness.788374.2, element0 [symbolic]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %D.G.type.0da: type = fn_type @D.G, @D(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %D.G.54c: %D.G.type.0da = struct_value () [concrete]
 // CHECK:STDOUT:   %C.7a7: type = class_type @C, @C(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %C.F.type.789: type = fn_type @C.F, @C(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %C.F.cc7: %C.F.type.789 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.700: type = facet_type <@A, @A(%empty_struct_type)> [concrete]
-// CHECK:STDOUT:   %.Self.4e2: %A.type.700 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %A.lookup_impl_witness.935: <witness> = lookup_impl_witness %.Self.4e2, @A, @A(%empty_struct_type) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.ab3: type = impl_witness_access %A.lookup_impl_witness.935, element0 [symbolic_self]
+// CHECK:STDOUT:   %A.type.813: type = facet_type <@A, @A(%empty_struct_type)> [concrete]
+// CHECK:STDOUT:   %.Self.507: %A.type.813 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %A.lookup_impl_witness.b1c: <witness> = lookup_impl_witness %.Self.507, @A, @A(%empty_struct_type) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.fa5: type = impl_witness_access %A.lookup_impl_witness.b1c, element0 [symbolic_self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic class @C(%CC.loc6_9.2: type) {
@@ -132,27 +132,27 @@ fn H(T:! type) {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
 // CHECK:STDOUT:     %C.F.decl: @C.%C.F.type (%C.F.type.704ae6.1) = fn_decl @C.F [symbolic = @C.%C.F (constants.%C.F.2d247e.1)] {
-// CHECK:STDOUT:       %T.patt: @C.F.%pattern_type (%pattern_type.2e9) = symbolic_binding_pattern T, 1 [concrete]
+// CHECK:STDOUT:       %T.patt: @C.F.%pattern_type (%pattern_type.132) = symbolic_binding_pattern T, 1 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %.loc11_18.1: type = splice_block %.loc11_18.2 [symbolic = %A_where.type (constants.%A_where.type.5b404c.1)] {
+// CHECK:STDOUT:       %.loc11_18.1: type = splice_block %.loc11_18.2 [symbolic = %A_where.type (constants.%A_where.type.26ce47.1)] {
 // CHECK:STDOUT:         <elided>
 // CHECK:STDOUT:         %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:         %CC.ref.loc11_14: type = name_ref CC, @C.%CC.loc6_9.2 [symbolic = %CC (constants.%CC)]
-// CHECK:STDOUT:         %A.type.loc11_16.2: type = facet_type <@A, @A(constants.%CC)> [symbolic = %A.type.loc11_16.1 (constants.%A.type.75a876.2)]
+// CHECK:STDOUT:         %A.type.loc11_16.2: type = facet_type <@A, @A(constants.%CC)> [symbolic = %A.type.loc11_16.1 (constants.%A.type.8069e2.2)]
 // CHECK:STDOUT:         <elided>
-// CHECK:STDOUT:         %.Self.ref: @C.F.%A.type.loc11_16.1 (%A.type.75a876.2) = name_ref .Self, %.Self.3 [symbolic = %.Self.1 (constants.%.Self.fafe34.1)]
+// CHECK:STDOUT:         %.Self.ref: @C.F.%A.type.loc11_16.1 (%A.type.8069e2.2) = name_ref .Self, %.Self.3 [symbolic = %.Self.1 (constants.%.Self.0d6bb0.1)]
 // CHECK:STDOUT:         %.loc11_24.1: @C.F.%A.assoc_type (%A.assoc_type.ed3b32.2) = specific_constant @X.%assoc0, @A(constants.%CC) [symbolic = %assoc0 (constants.%assoc0.ce3509.2)]
 // CHECK:STDOUT:         %X.ref: @C.F.%A.assoc_type (%A.assoc_type.ed3b32.2) = name_ref X, %.loc11_24.1 [symbolic = %assoc0 (constants.%assoc0.ce3509.2)]
 // CHECK:STDOUT:         %.Self.as_type.loc11_24.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc11_24.1 (constants.%.Self.as_type)]
 // CHECK:STDOUT:         %.loc11_24.2: type = converted %.Self.ref, %.Self.as_type.loc11_24.2 [symbolic = %.Self.as_type.loc11_24.1 (constants.%.Self.as_type)]
-// CHECK:STDOUT:         %impl.elem0.loc11_24.2: type = impl_witness_access constants.%A.lookup_impl_witness.4e49fb.1, element0 [symbolic = %impl.elem0.loc11_24.1 (constants.%impl.elem0.452c56.1)]
+// CHECK:STDOUT:         %impl.elem0.loc11_24.2: type = impl_witness_access constants.%A.lookup_impl_witness.788374.1, element0 [symbolic = %impl.elem0.loc11_24.1 (constants.%impl.elem0.55a52f.1)]
 // CHECK:STDOUT:         %CC.ref.loc11_29: type = name_ref CC, @C.%CC.loc6_9.2 [symbolic = %CC (constants.%CC)]
-// CHECK:STDOUT:         %.loc11_18.2: type = where_expr %.Self.3 [symbolic = %A_where.type (constants.%A_where.type.5b404c.1)] {
-// CHECK:STDOUT:           requirement_base_facet_type constants.%A.type.75a876.2
+// CHECK:STDOUT:         %.loc11_18.2: type = where_expr %.Self.3 [symbolic = %A_where.type (constants.%A_where.type.26ce47.1)] {
+// CHECK:STDOUT:           requirement_base_facet_type constants.%A.type.8069e2.2
 // CHECK:STDOUT:           requirement_rewrite %impl.elem0.loc11_24.2, %CC.ref.loc11_29
 // CHECK:STDOUT:         }
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %T.loc11_8.2: @C.F.%A_where.type (%A_where.type.5b404c.1) = bind_symbolic_name T, 1 [symbolic = %T.loc11_8.1 (constants.%T.dad)]
+// CHECK:STDOUT:       %T.loc11_8.2: @C.F.%A_where.type (%A_where.type.26ce47.1) = bind_symbolic_name T, 1 [symbolic = %T.loc11_8.1 (constants.%T.3d2)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:     complete_type_witness = %complete_type
@@ -183,19 +183,19 @@ fn H(T:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @C.F(@C.%CC.loc6_9.2: type, %T.loc11_8.2: @C.F.%A_where.type (%A_where.type.5b404c.1)) {
+// CHECK:STDOUT: generic fn @C.F(@C.%CC.loc6_9.2: type, %T.loc11_8.2: @C.F.%A_where.type (%A_where.type.26ce47.1)) {
 // CHECK:STDOUT:   %CC: type = bind_symbolic_name CC, 0 [symbolic = %CC (constants.%CC)]
-// CHECK:STDOUT:   %A.type.loc11_16.1: type = facet_type <@A, @A(%CC)> [symbolic = %A.type.loc11_16.1 (constants.%A.type.75a876.2)]
+// CHECK:STDOUT:   %A.type.loc11_16.1: type = facet_type <@A, @A(%CC)> [symbolic = %A.type.loc11_16.1 (constants.%A.type.8069e2.2)]
 // CHECK:STDOUT:   <elided>
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %A.type.loc11_16.1 [symbolic = %require_complete (constants.%require_complete.6da)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %A.type.loc11_16.1 [symbolic = %require_complete (constants.%require_complete.ed4)]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A, @A(%CC) [symbolic = %A.assoc_type (constants.%A.assoc_type.ed3b32.2)]
 // CHECK:STDOUT:   %assoc0: @C.F.%A.assoc_type (%A.assoc_type.ed3b32.2) = assoc_entity element0, @A.%X [symbolic = %assoc0 (constants.%assoc0.ce3509.2)]
 // CHECK:STDOUT:   %.Self.as_type.loc11_24.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc11_24.1 (constants.%.Self.as_type)]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @A, @A(%CC) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.4e49fb.1)]
-// CHECK:STDOUT:   %impl.elem0.loc11_24.1: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_24.1 (constants.%impl.elem0.452c56.1)]
-// CHECK:STDOUT:   %A_where.type: type = facet_type <@A, @A(%CC) where %impl.elem0.loc11_24.1 = %CC> [symbolic = %A_where.type (constants.%A_where.type.5b404c.1)]
-// CHECK:STDOUT:   %T.loc11_8.1: @C.F.%A_where.type (%A_where.type.5b404c.1) = bind_symbolic_name T, 1 [symbolic = %T.loc11_8.1 (constants.%T.dad)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %A_where.type [symbolic = %pattern_type (constants.%pattern_type.2e9)]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @A, @A(%CC) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.788374.1)]
+// CHECK:STDOUT:   %impl.elem0.loc11_24.1: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_24.1 (constants.%impl.elem0.55a52f.1)]
+// CHECK:STDOUT:   %A_where.type: type = facet_type <@A, @A(%CC) where %impl.elem0.loc11_24.1 = %CC> [symbolic = %A_where.type (constants.%A_where.type.26ce47.1)]
+// CHECK:STDOUT:   %T.loc11_8.1: @C.F.%A_where.type (%A_where.type.26ce47.1) = bind_symbolic_name T, 1 [symbolic = %T.loc11_8.1 (constants.%T.3d2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %A_where.type [symbolic = %pattern_type (constants.%pattern_type.132)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -214,10 +214,10 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %C.loc25_9.2 [symbolic = %require_complete (constants.%require_complete.389)]
 // CHECK:STDOUT:   %C.F.type: type = fn_type @C.F, @C(%DD) [symbolic = %C.F.type (constants.%C.F.type.704ae6.2)]
 // CHECK:STDOUT:   %C.F: @D.G.%C.F.type (%C.F.type.704ae6.2) = struct_value () [symbolic = %C.F (constants.%C.F.2d247e.2)]
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%DD)> [symbolic = %A.type (constants.%A.type.75a876.3)]
-// CHECK:STDOUT:   %.Self.loc11: @D.G.%A.type (%A.type.75a876.3) = bind_symbolic_name .Self [symbolic = %.Self.loc11 (constants.%.Self.fafe34.2)]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.loc11, @A, @A(%DD) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.4e49fb.2)]
-// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0.452c56.2)]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%DD)> [symbolic = %A.type (constants.%A.type.8069e2.3)]
+// CHECK:STDOUT:   %.Self.loc11: @D.G.%A.type (%A.type.8069e2.3) = bind_symbolic_name .Self [symbolic = %.Self.loc11 (constants.%.Self.0d6bb0.2)]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.loc11, @A, @A(%DD) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.788374.2)]
+// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0.55a52f.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
@@ -239,19 +239,19 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %C.F => constants.%C.F.2d247e.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.F(constants.%CC, constants.%T.dad) {
+// CHECK:STDOUT: specific @C.F(constants.%CC, constants.%T.3d2) {
 // CHECK:STDOUT:   %CC => constants.%CC
-// CHECK:STDOUT:   %A.type.loc11_16.1 => constants.%A.type.75a876.2
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.fafe34.1
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.6da
+// CHECK:STDOUT:   %A.type.loc11_16.1 => constants.%A.type.8069e2.2
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.0d6bb0.1
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.ed4
 // CHECK:STDOUT:   %A.assoc_type => constants.%A.assoc_type.ed3b32.2
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.ce3509.2
 // CHECK:STDOUT:   %.Self.as_type.loc11_24.1 => constants.%.Self.as_type
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.4e49fb.1
-// CHECK:STDOUT:   %impl.elem0.loc11_24.1 => constants.%impl.elem0.452c56.1
-// CHECK:STDOUT:   %A_where.type => constants.%A_where.type.5b404c.1
-// CHECK:STDOUT:   %T.loc11_8.1 => constants.%T.dad
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2e9
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.788374.1
+// CHECK:STDOUT:   %impl.elem0.loc11_24.1 => constants.%impl.elem0.55a52f.1
+// CHECK:STDOUT:   %A_where.type => constants.%A_where.type.26ce47.1
+// CHECK:STDOUT:   %T.loc11_8.1 => constants.%T.3d2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.132
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @D(constants.%DD) {
@@ -291,10 +291,10 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
 // CHECK:STDOUT:   %C.F.type => constants.%C.F.type.789
 // CHECK:STDOUT:   %C.F => constants.%C.F.cc7
-// CHECK:STDOUT:   %A.type => constants.%A.type.700
-// CHECK:STDOUT:   %.Self.loc11 => constants.%.Self.4e2
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.935
-// CHECK:STDOUT:   %impl.elem0 => constants.%impl.elem0.ab3
+// CHECK:STDOUT:   %A.type => constants.%A.type.813
+// CHECK:STDOUT:   %.Self.loc11 => constants.%.Self.507
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.b1c
+// CHECK:STDOUT:   %impl.elem0 => constants.%impl.elem0.fa5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%empty_struct_type) {
@@ -313,24 +313,24 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %A.type.495: type = generic_interface_type @A [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.generic: %A.type.495 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.75a876.1: type = facet_type <@A, @A(%AA)> [symbolic]
+// CHECK:STDOUT:   %A.type.8069e2.1: type = facet_type <@A, @A(%AA)> [symbolic]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A, @A(%AA) [symbolic]
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, @A.%X [symbolic]
 // CHECK:STDOUT:   %B.type.bf2: type = generic_interface_type @B [concrete]
 // CHECK:STDOUT:   %B.generic: %B.type.bf2 = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.fafe34.1: %A.type.75a876.1 = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %require_complete.6da: <witness> = require_complete_type %A.type.75a876.1 [symbolic]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.fafe34.1 [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness.4e49fb.1: <witness> = lookup_impl_witness %.Self.fafe34.1, @A, @A(%AA) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.452c56.1: type = impl_witness_access %A.lookup_impl_witness.4e49fb.1, element0 [symbolic]
-// CHECK:STDOUT:   %A_where.type.812090.1: type = facet_type <@A, @A(%AA) where %impl.elem0.452c56.1 = %empty_tuple.type> [symbolic]
-// CHECK:STDOUT:   %BB.a66: %A_where.type.812090.1 = bind_symbolic_name BB, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.0b2: type = pattern_type %A_where.type.812090.1 [symbolic]
-// CHECK:STDOUT:   %BB.as_type: type = facet_access_type %BB.a66 [symbolic]
+// CHECK:STDOUT:   %.Self.0d6bb0.1: %A.type.8069e2.1 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %require_complete.ed4: <witness> = require_complete_type %A.type.8069e2.1 [symbolic]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.0d6bb0.1 [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness.788374.1: <witness> = lookup_impl_witness %.Self.0d6bb0.1, @A, @A(%AA) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.55a52f.1: type = impl_witness_access %A.lookup_impl_witness.788374.1, element0 [symbolic]
+// CHECK:STDOUT:   %A_where.type.290bb5.1: type = facet_type <@A, @A(%AA) where %impl.elem0.55a52f.1 = %empty_tuple.type> [symbolic]
+// CHECK:STDOUT:   %BB.27a: %A_where.type.290bb5.1 = bind_symbolic_name BB, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.8b9: type = pattern_type %A_where.type.290bb5.1 [symbolic]
+// CHECK:STDOUT:   %BB.as_type: type = facet_access_type %BB.27a [symbolic]
 // CHECK:STDOUT:   %ptr.79f131.1: type = ptr_type %AA [symbolic]
-// CHECK:STDOUT:   %B.type.4e3fc4.1: type = facet_type <@B, @B(%ptr.79f131.1)> [symbolic]
-// CHECK:STDOUT:   %require_complete.13ba89.1: <witness> = require_complete_type %B.type.4e3fc4.1 [symbolic]
-// CHECK:STDOUT:   %B.impl_witness.741: <witness> = impl_witness file.%B.impl_witness_table.loc9, @BB.as_type.as.B.impl(%AA, %BB.a66) [symbolic]
+// CHECK:STDOUT:   %B.type.082806.1: type = facet_type <@B, @B(%ptr.79f131.1)> [symbolic]
+// CHECK:STDOUT:   %require_complete.2b714e.1: <witness> = require_complete_type %B.type.082806.1 [symbolic]
+// CHECK:STDOUT:   %B.impl_witness.242: <witness> = impl_witness file.%B.impl_witness_table.loc9, @BB.as_type.as.B.impl(%AA, %BB.27a) [symbolic]
 // CHECK:STDOUT:   %DD: type = bind_symbolic_name DD, 0 [symbolic]
 // CHECK:STDOUT:   %D.432: type = class_type @D, @D(%DD) [symbolic]
 // CHECK:STDOUT:   %T.336: type = bind_symbolic_name T, 1 [symbolic]
@@ -338,83 +338,83 @@ fn H(T:! type) {
 // CHECK:STDOUT:   %D.G.714: %D.G.type.a94 = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %ptr.79f131.2: type = ptr_type %DD [symbolic]
-// CHECK:STDOUT:   %B.type.4e3fc4.2: type = facet_type <@B, @B(%ptr.79f131.2)> [symbolic]
-// CHECK:STDOUT:   %A.type.75a876.2: type = facet_type <@A, @A(%DD)> [symbolic]
-// CHECK:STDOUT:   %.Self.fafe34.2: %A.type.75a876.2 = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness.4e49fb.2: <witness> = lookup_impl_witness %.Self.fafe34.2, @A, @A(%DD) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.452c56.2: type = impl_witness_access %A.lookup_impl_witness.4e49fb.2, element0 [symbolic]
+// CHECK:STDOUT:   %B.type.082806.2: type = facet_type <@B, @B(%ptr.79f131.2)> [symbolic]
+// CHECK:STDOUT:   %A.type.8069e2.2: type = facet_type <@A, @A(%DD)> [symbolic]
+// CHECK:STDOUT:   %.Self.0d6bb0.2: %A.type.8069e2.2 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness.788374.2: <witness> = lookup_impl_witness %.Self.0d6bb0.2, @A, @A(%DD) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.55a52f.2: type = impl_witness_access %A.lookup_impl_witness.788374.2, element0 [symbolic]
 // CHECK:STDOUT:   %B.lookup_impl_witness.8e3: <witness> = lookup_impl_witness %T.336, @B, @B(%ptr.79f131.2) [symbolic]
-// CHECK:STDOUT:   %B.facet.44e: %B.type.4e3fc4.2 = facet_value %T.336, (%B.lookup_impl_witness.8e3) [symbolic]
+// CHECK:STDOUT:   %B.facet.620: %B.type.082806.2 = facet_value %T.336, (%B.lookup_impl_witness.8e3) [symbolic]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %D.G.type.0da: type = fn_type @D.G, @D(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %D.G.54c: %D.G.type.0da = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %B.type.973: type = facet_type <@B, @B(%ptr.c28)> [concrete]
-// CHECK:STDOUT:   %A.type.700: type = facet_type <@A, @A(%empty_struct_type)> [concrete]
-// CHECK:STDOUT:   %.Self.4e2: %A.type.700 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %A.lookup_impl_witness.935: <witness> = lookup_impl_witness %.Self.4e2, @A, @A(%empty_struct_type) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.ab3: type = impl_witness_access %A.lookup_impl_witness.935, element0 [symbolic_self]
+// CHECK:STDOUT:   %B.type.2f4: type = facet_type <@B, @B(%ptr.c28)> [concrete]
+// CHECK:STDOUT:   %A.type.813: type = facet_type <@A, @A(%empty_struct_type)> [concrete]
+// CHECK:STDOUT:   %.Self.507: %A.type.813 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %A.lookup_impl_witness.b1c: <witness> = lookup_impl_witness %.Self.507, @A, @A(%empty_struct_type) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.fa5: type = impl_witness_access %A.lookup_impl_witness.b1c, element0 [symbolic_self]
 // CHECK:STDOUT:   %B.lookup_impl_witness.c4b: <witness> = lookup_impl_witness %T.8b3, @B, @B(%ptr.c28) [symbolic]
-// CHECK:STDOUT:   %B.facet.8ed: %B.type.973 = facet_value %T.8b3, (%B.lookup_impl_witness.c4b) [symbolic]
+// CHECK:STDOUT:   %B.facet.5c2: %B.type.2f4 = facet_value %T.8b3, (%B.lookup_impl_witness.c4b) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   impl_decl @BB.as_type.as.B.impl [concrete] {
 // CHECK:STDOUT:     %AA.patt: %pattern_type.98f = symbolic_binding_pattern AA, 0 [concrete]
-// CHECK:STDOUT:     %BB.patt: @BB.as_type.as.B.impl.%pattern_type (%pattern_type.0b2) = symbolic_binding_pattern BB, 1 [concrete]
+// CHECK:STDOUT:     %BB.patt: @BB.as_type.as.B.impl.%pattern_type (%pattern_type.8b9) = symbolic_binding_pattern BB, 1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %BB.ref: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.812090.1) = name_ref BB, %BB.loc9_25.1 [symbolic = %BB.loc9_25.2 (constants.%BB.a66)]
+// CHECK:STDOUT:     %BB.ref: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.290bb5.1) = name_ref BB, %BB.loc9_25.1 [symbolic = %BB.loc9_25.2 (constants.%BB.27a)]
 // CHECK:STDOUT:     %BB.as_type.loc9_51.1: type = facet_access_type %BB.ref [symbolic = %BB.as_type.loc9_51.2 (constants.%BB.as_type)]
 // CHECK:STDOUT:     %.loc9_51: type = converted %BB.ref, %BB.as_type.loc9_51.1 [symbolic = %BB.as_type.loc9_51.2 (constants.%BB.as_type)]
 // CHECK:STDOUT:     %B.ref: %B.type.bf2 = name_ref B, file.%B.decl [concrete = constants.%B.generic]
 // CHECK:STDOUT:     %AA.ref.loc9_59: type = name_ref AA, %AA.loc9_14.1 [symbolic = %AA.loc9_14.2 (constants.%AA)]
 // CHECK:STDOUT:     %ptr.loc9_61.1: type = ptr_type %AA.ref.loc9_59 [symbolic = %ptr.loc9_61.2 (constants.%ptr.79f131.1)]
-// CHECK:STDOUT:     %B.type.loc9_62.1: type = facet_type <@B, @B(constants.%ptr.79f131.1)> [symbolic = %B.type.loc9_62.2 (constants.%B.type.4e3fc4.1)]
+// CHECK:STDOUT:     %B.type.loc9_62.1: type = facet_type <@B, @B(constants.%ptr.79f131.1)> [symbolic = %B.type.loc9_62.2 (constants.%B.type.082806.1)]
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:     %AA.loc9_14.1: type = bind_symbolic_name AA, 0 [symbolic = %AA.loc9_14.2 (constants.%AA)]
-// CHECK:STDOUT:     %.loc9_36.1: type = splice_block %.loc9_36.2 [symbolic = %A_where.type (constants.%A_where.type.812090.1)] {
+// CHECK:STDOUT:     %.loc9_36.1: type = splice_block %.loc9_36.2 [symbolic = %A_where.type (constants.%A_where.type.290bb5.1)] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:       %AA.ref.loc9_32: type = name_ref AA, %AA.loc9_14.1 [symbolic = %AA.loc9_14.2 (constants.%AA)]
-// CHECK:STDOUT:       %A.type.loc9_34.1: type = facet_type <@A, @A(constants.%AA)> [symbolic = %A.type.loc9_34.2 (constants.%A.type.75a876.1)]
+// CHECK:STDOUT:       %A.type.loc9_34.1: type = facet_type <@A, @A(constants.%AA)> [symbolic = %A.type.loc9_34.2 (constants.%A.type.8069e2.1)]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: @BB.as_type.as.B.impl.%A.type.loc9_34.2 (%A.type.75a876.1) = name_ref .Self, %.Self.3 [symbolic = %.Self.4 (constants.%.Self.fafe34.1)]
+// CHECK:STDOUT:       %.Self.ref: @BB.as_type.as.B.impl.%A.type.loc9_34.2 (%A.type.8069e2.1) = name_ref .Self, %.Self.3 [symbolic = %.Self.4 (constants.%.Self.0d6bb0.1)]
 // CHECK:STDOUT:       %.loc9_42.1: @BB.as_type.as.B.impl.%A.assoc_type (%A.assoc_type) = specific_constant @X.%assoc0, @A(constants.%AA) [symbolic = %assoc0 (constants.%assoc0)]
 // CHECK:STDOUT:       %X.ref: @BB.as_type.as.B.impl.%A.assoc_type (%A.assoc_type) = name_ref X, %.loc9_42.1 [symbolic = %assoc0 (constants.%assoc0)]
 // CHECK:STDOUT:       %.Self.as_type.loc9_42.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc9_42.2 (constants.%.Self.as_type)]
 // CHECK:STDOUT:       %.loc9_42.2: type = converted %.Self.ref, %.Self.as_type.loc9_42.1 [symbolic = %.Self.as_type.loc9_42.2 (constants.%.Self.as_type)]
-// CHECK:STDOUT:       %impl.elem0.loc9_42.1: type = impl_witness_access constants.%A.lookup_impl_witness.4e49fb.1, element0 [symbolic = %impl.elem0.loc9_42.2 (constants.%impl.elem0.452c56.1)]
+// CHECK:STDOUT:       %impl.elem0.loc9_42.1: type = impl_witness_access constants.%A.lookup_impl_witness.788374.1, element0 [symbolic = %impl.elem0.loc9_42.2 (constants.%impl.elem0.55a52f.1)]
 // CHECK:STDOUT:       %.loc9_48.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc9_48.2: type = converted %.loc9_48.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %.loc9_36.2: type = where_expr %.Self.3 [symbolic = %A_where.type (constants.%A_where.type.812090.1)] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%A.type.75a876.1
+// CHECK:STDOUT:       %.loc9_36.2: type = where_expr %.Self.3 [symbolic = %A_where.type (constants.%A_where.type.290bb5.1)] {
+// CHECK:STDOUT:         requirement_base_facet_type constants.%A.type.8069e2.1
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc9_42.1, %.loc9_48.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %BB.loc9_25.1: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.812090.1) = bind_symbolic_name BB, 1 [symbolic = %BB.loc9_25.2 (constants.%BB.a66)]
+// CHECK:STDOUT:     %BB.loc9_25.1: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.290bb5.1) = bind_symbolic_name BB, 1 [symbolic = %BB.loc9_25.2 (constants.%BB.27a)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %B.impl_witness_table.loc9 = impl_witness_table (), @BB.as_type.as.B.impl [concrete]
-// CHECK:STDOUT:   %B.impl_witness.loc9: <witness> = impl_witness %B.impl_witness_table.loc9, @BB.as_type.as.B.impl(constants.%AA, constants.%BB.a66) [symbolic = @BB.as_type.as.B.impl.%B.impl_witness (constants.%B.impl_witness.741)]
+// CHECK:STDOUT:   %B.impl_witness.loc9: <witness> = impl_witness %B.impl_witness_table.loc9, @BB.as_type.as.B.impl(constants.%AA, constants.%BB.27a) [symbolic = @BB.as_type.as.B.impl.%B.impl_witness (constants.%B.impl_witness.242)]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @BB.as_type.as.B.impl(%AA.loc9_14.1: type, %BB.loc9_25.1: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.812090.1)) {
+// CHECK:STDOUT: generic impl @BB.as_type.as.B.impl(%AA.loc9_14.1: type, %BB.loc9_25.1: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.290bb5.1)) {
 // CHECK:STDOUT:   %AA.loc9_14.2: type = bind_symbolic_name AA, 0 [symbolic = %AA.loc9_14.2 (constants.%AA)]
-// CHECK:STDOUT:   %A.type.loc9_34.2: type = facet_type <@A, @A(%AA.loc9_14.2)> [symbolic = %A.type.loc9_34.2 (constants.%A.type.75a876.1)]
+// CHECK:STDOUT:   %A.type.loc9_34.2: type = facet_type <@A, @A(%AA.loc9_14.2)> [symbolic = %A.type.loc9_34.2 (constants.%A.type.8069e2.1)]
 // CHECK:STDOUT:   <elided>
-// CHECK:STDOUT:   %require_complete.loc9_42: <witness> = require_complete_type %A.type.loc9_34.2 [symbolic = %require_complete.loc9_42 (constants.%require_complete.6da)]
+// CHECK:STDOUT:   %require_complete.loc9_42: <witness> = require_complete_type %A.type.loc9_34.2 [symbolic = %require_complete.loc9_42 (constants.%require_complete.ed4)]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A, @A(%AA.loc9_14.2) [symbolic = %A.assoc_type (constants.%A.assoc_type)]
 // CHECK:STDOUT:   %assoc0: @BB.as_type.as.B.impl.%A.assoc_type (%A.assoc_type) = assoc_entity element0, @A.%X [symbolic = %assoc0 (constants.%assoc0)]
 // CHECK:STDOUT:   %.Self.as_type.loc9_42.2: type = facet_access_type %.Self.4 [symbolic = %.Self.as_type.loc9_42.2 (constants.%.Self.as_type)]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.4, @A, @A(%AA.loc9_14.2) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.4e49fb.1)]
-// CHECK:STDOUT:   %impl.elem0.loc9_42.2: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_42.2 (constants.%impl.elem0.452c56.1)]
-// CHECK:STDOUT:   %A_where.type: type = facet_type <@A, @A(%AA.loc9_14.2) where %impl.elem0.loc9_42.2 = constants.%empty_tuple.type> [symbolic = %A_where.type (constants.%A_where.type.812090.1)]
-// CHECK:STDOUT:   %BB.loc9_25.2: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.812090.1) = bind_symbolic_name BB, 1 [symbolic = %BB.loc9_25.2 (constants.%BB.a66)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %A_where.type [symbolic = %pattern_type (constants.%pattern_type.0b2)]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.4, @A, @A(%AA.loc9_14.2) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.788374.1)]
+// CHECK:STDOUT:   %impl.elem0.loc9_42.2: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_42.2 (constants.%impl.elem0.55a52f.1)]
+// CHECK:STDOUT:   %A_where.type: type = facet_type <@A, @A(%AA.loc9_14.2) where %impl.elem0.loc9_42.2 = constants.%empty_tuple.type> [symbolic = %A_where.type (constants.%A_where.type.290bb5.1)]
+// CHECK:STDOUT:   %BB.loc9_25.2: @BB.as_type.as.B.impl.%A_where.type (%A_where.type.290bb5.1) = bind_symbolic_name BB, 1 [symbolic = %BB.loc9_25.2 (constants.%BB.27a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %A_where.type [symbolic = %pattern_type (constants.%pattern_type.8b9)]
 // CHECK:STDOUT:   %BB.as_type.loc9_51.2: type = facet_access_type %BB.loc9_25.2 [symbolic = %BB.as_type.loc9_51.2 (constants.%BB.as_type)]
 // CHECK:STDOUT:   %ptr.loc9_61.2: type = ptr_type %AA.loc9_14.2 [symbolic = %ptr.loc9_61.2 (constants.%ptr.79f131.1)]
-// CHECK:STDOUT:   %B.type.loc9_62.2: type = facet_type <@B, @B(%ptr.loc9_61.2)> [symbolic = %B.type.loc9_62.2 (constants.%B.type.4e3fc4.1)]
-// CHECK:STDOUT:   %require_complete.loc9_62: <witness> = require_complete_type %B.type.loc9_62.2 [symbolic = %require_complete.loc9_62 (constants.%require_complete.13ba89.1)]
-// CHECK:STDOUT:   %B.impl_witness: <witness> = impl_witness file.%B.impl_witness_table.loc9, @BB.as_type.as.B.impl(%AA.loc9_14.2, %BB.loc9_25.2) [symbolic = %B.impl_witness (constants.%B.impl_witness.741)]
+// CHECK:STDOUT:   %B.type.loc9_62.2: type = facet_type <@B, @B(%ptr.loc9_61.2)> [symbolic = %B.type.loc9_62.2 (constants.%B.type.082806.1)]
+// CHECK:STDOUT:   %require_complete.loc9_62: <witness> = require_complete_type %B.type.loc9_62.2 [symbolic = %require_complete.loc9_62 (constants.%require_complete.2b714e.1)]
+// CHECK:STDOUT:   %B.impl_witness: <witness> = impl_witness file.%B.impl_witness_table.loc9, @BB.as_type.as.B.impl(%AA.loc9_14.2, %BB.loc9_25.2) [symbolic = %B.impl_witness (constants.%B.impl_witness.242)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -448,13 +448,13 @@ fn H(T:! type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %DD: type = bind_symbolic_name DD, 0 [symbolic = %DD (constants.%DD)]
 // CHECK:STDOUT:   %ptr.loc21_14.2: type = ptr_type %DD [symbolic = %ptr.loc21_14.2 (constants.%ptr.79f131.2)]
-// CHECK:STDOUT:   %B.type.loc21_15.2: type = facet_type <@B, @B(%ptr.loc21_14.2)> [symbolic = %B.type.loc21_15.2 (constants.%B.type.4e3fc4.2)]
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%DD)> [symbolic = %A.type (constants.%A.type.75a876.2)]
-// CHECK:STDOUT:   %.Self.loc9: @D.G.%A.type (%A.type.75a876.2) = bind_symbolic_name .Self [symbolic = %.Self.loc9 (constants.%.Self.fafe34.2)]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.loc9, @A, @A(%DD) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.4e49fb.2)]
-// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0.452c56.2)]
+// CHECK:STDOUT:   %B.type.loc21_15.2: type = facet_type <@B, @B(%ptr.loc21_14.2)> [symbolic = %B.type.loc21_15.2 (constants.%B.type.082806.2)]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%DD)> [symbolic = %A.type (constants.%A.type.8069e2.2)]
+// CHECK:STDOUT:   %.Self.loc9: @D.G.%A.type (%A.type.8069e2.2) = bind_symbolic_name .Self [symbolic = %.Self.loc9 (constants.%.Self.0d6bb0.2)]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.loc9, @A, @A(%DD) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness.788374.2)]
+// CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0.55a52f.2)]
 // CHECK:STDOUT:   %B.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc15_8.1, @B, @B(%ptr.loc21_14.2) [symbolic = %B.lookup_impl_witness (constants.%B.lookup_impl_witness.8e3)]
-// CHECK:STDOUT:   %B.facet.loc21_7.2: @D.G.%B.type.loc21_15.2 (%B.type.4e3fc4.2) = facet_value %T.loc15_8.1, (%B.lookup_impl_witness) [symbolic = %B.facet.loc21_7.2 (constants.%B.facet.44e)]
+// CHECK:STDOUT:   %B.facet.loc21_7.2: @D.G.%B.type.loc21_15.2 (%B.type.082806.2) = facet_value %T.loc15_8.1, (%B.lookup_impl_witness) [symbolic = %B.facet.loc21_7.2 (constants.%B.facet.620)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
@@ -462,31 +462,31 @@ fn H(T:! type) {
 // CHECK:STDOUT:     %B.ref: %B.type.bf2 = name_ref B, file.%B.decl [concrete = constants.%B.generic]
 // CHECK:STDOUT:     %DD.ref: type = name_ref DD, @D.%DD.loc14_9.2 [symbolic = %DD (constants.%DD)]
 // CHECK:STDOUT:     %ptr.loc21_14.1: type = ptr_type %DD.ref [symbolic = %ptr.loc21_14.2 (constants.%ptr.79f131.2)]
-// CHECK:STDOUT:     %B.type.loc21_15.1: type = facet_type <@B, @B(constants.%ptr.79f131.2)> [symbolic = %B.type.loc21_15.2 (constants.%B.type.4e3fc4.2)]
-// CHECK:STDOUT:     %B.facet.loc21_7.1: @D.G.%B.type.loc21_15.2 (%B.type.4e3fc4.2) = facet_value constants.%T.336, (constants.%B.lookup_impl_witness.8e3) [symbolic = %B.facet.loc21_7.2 (constants.%B.facet.44e)]
-// CHECK:STDOUT:     %.loc21: @D.G.%B.type.loc21_15.2 (%B.type.4e3fc4.2) = converted %T.ref, %B.facet.loc21_7.1 [symbolic = %B.facet.loc21_7.2 (constants.%B.facet.44e)]
+// CHECK:STDOUT:     %B.type.loc21_15.1: type = facet_type <@B, @B(constants.%ptr.79f131.2)> [symbolic = %B.type.loc21_15.2 (constants.%B.type.082806.2)]
+// CHECK:STDOUT:     %B.facet.loc21_7.1: @D.G.%B.type.loc21_15.2 (%B.type.082806.2) = facet_value constants.%T.336, (constants.%B.lookup_impl_witness.8e3) [symbolic = %B.facet.loc21_7.2 (constants.%B.facet.620)]
+// CHECK:STDOUT:     %.loc21: @D.G.%B.type.loc21_15.2 (%B.type.082806.2) = converted %T.ref, %B.facet.loc21_7.1 [symbolic = %B.facet.loc21_7.2 (constants.%B.facet.620)]
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @BB.as_type.as.B.impl(constants.%AA, constants.%BB.a66) {
+// CHECK:STDOUT: specific @BB.as_type.as.B.impl(constants.%AA, constants.%BB.27a) {
 // CHECK:STDOUT:   %AA.loc9_14.2 => constants.%AA
-// CHECK:STDOUT:   %A.type.loc9_34.2 => constants.%A.type.75a876.1
-// CHECK:STDOUT:   %.Self.4 => constants.%.Self.fafe34.1
-// CHECK:STDOUT:   %require_complete.loc9_42 => constants.%require_complete.6da
+// CHECK:STDOUT:   %A.type.loc9_34.2 => constants.%A.type.8069e2.1
+// CHECK:STDOUT:   %.Self.4 => constants.%.Self.0d6bb0.1
+// CHECK:STDOUT:   %require_complete.loc9_42 => constants.%require_complete.ed4
 // CHECK:STDOUT:   %A.assoc_type => constants.%A.assoc_type
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0
 // CHECK:STDOUT:   %.Self.as_type.loc9_42.2 => constants.%.Self.as_type
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.4e49fb.1
-// CHECK:STDOUT:   %impl.elem0.loc9_42.2 => constants.%impl.elem0.452c56.1
-// CHECK:STDOUT:   %A_where.type => constants.%A_where.type.812090.1
-// CHECK:STDOUT:   %BB.loc9_25.2 => constants.%BB.a66
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.0b2
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.788374.1
+// CHECK:STDOUT:   %impl.elem0.loc9_42.2 => constants.%impl.elem0.55a52f.1
+// CHECK:STDOUT:   %A_where.type => constants.%A_where.type.290bb5.1
+// CHECK:STDOUT:   %BB.loc9_25.2 => constants.%BB.27a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8b9
 // CHECK:STDOUT:   %BB.as_type.loc9_51.2 => constants.%BB.as_type
 // CHECK:STDOUT:   %ptr.loc9_61.2 => constants.%ptr.79f131.1
-// CHECK:STDOUT:   %B.type.loc9_62.2 => constants.%B.type.4e3fc4.1
-// CHECK:STDOUT:   %require_complete.loc9_62 => constants.%require_complete.13ba89.1
-// CHECK:STDOUT:   %B.impl_witness => constants.%B.impl_witness.741
+// CHECK:STDOUT:   %B.type.loc9_62.2 => constants.%B.type.082806.1
+// CHECK:STDOUT:   %require_complete.loc9_62 => constants.%require_complete.2b714e.1
+// CHECK:STDOUT:   %B.impl_witness => constants.%B.impl_witness.242
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @D(constants.%DD) {
@@ -515,12 +515,12 @@ fn H(T:! type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %DD => constants.%empty_struct_type
 // CHECK:STDOUT:   %ptr.loc21_14.2 => constants.%ptr.c28
-// CHECK:STDOUT:   %B.type.loc21_15.2 => constants.%B.type.973
-// CHECK:STDOUT:   %A.type => constants.%A.type.700
-// CHECK:STDOUT:   %.Self.loc9 => constants.%.Self.4e2
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.935
-// CHECK:STDOUT:   %impl.elem0 => constants.%impl.elem0.ab3
+// CHECK:STDOUT:   %B.type.loc21_15.2 => constants.%B.type.2f4
+// CHECK:STDOUT:   %A.type => constants.%A.type.813
+// CHECK:STDOUT:   %.Self.loc9 => constants.%.Self.507
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.lookup_impl_witness.b1c
+// CHECK:STDOUT:   %impl.elem0 => constants.%impl.elem0.fa5
 // CHECK:STDOUT:   %B.lookup_impl_witness => constants.%B.lookup_impl_witness.c4b
-// CHECK:STDOUT:   %B.facet.loc21_7.2 => constants.%B.facet.8ed
+// CHECK:STDOUT:   %B.facet.loc21_7.2 => constants.%B.facet.5c2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/generic/local.carbon b/toolchain/check/testdata/generic/local.carbon
index 5ecd34d681b7..d3785d8a92f2 100644
--- a/toolchain/check/testdata/generic/local.carbon
+++ b/toolchain/check/testdata/generic/local.carbon
@@ -63,13 +63,13 @@ class C(C:! type) {
 // CHECK:STDOUT:   %C.elem.cca: type = unbound_element_type %C.f06, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c0e: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.6c6: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.18b: type = ptr_type %C.f06 [symbolic]
 // CHECK:STDOUT:   %pattern_type.468: type = pattern_type %ptr.18b [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.ed9: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.1f0: %C.as.Destroy.impl.Op.type.ed9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.0f7: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.0e8: %C.as.Destroy.impl.Op.type.0f7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %struct_type.x.2ac: type = struct_type {.x: %T} [symbolic]
-// CHECK:STDOUT:   %complete_type.4339: <witness> = complete_type_witness %struct_type.x.2ac [symbolic]
+// CHECK:STDOUT:   %complete_type.433: <witness> = complete_type_witness %struct_type.x.2ac [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
@@ -85,27 +85,27 @@ class C(C:! type) {
 // CHECK:STDOUT:   %struct_type.x.c96: type = struct_type {.x: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %C.val: %C.d45 = struct_value (%int_1.5d2) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.13b: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.0d3: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%i32) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.be7: %C.as.Destroy.impl.Op.type.0d3 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ba5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.072: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.05c: %C.as.Destroy.impl.Op.type.072 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.9c7: type = ptr_type %C.d45 [concrete]
 // CHECK:STDOUT:   %pattern_type.3f3: type = pattern_type %ptr.9c7 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.be7, @C.as.Destroy.impl.Op(%i32) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.05c, @C.as.Destroy.impl.Op(%i32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -119,8 +119,8 @@ class C(C:! type) {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -135,14 +135,14 @@ class C(C:! type) {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc5_11.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f06)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c0e)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.6c6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.ed9)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ed9) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.1f0)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.0f7)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.0f7) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.0e8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ed9) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.1f0)] {
+// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.0f7) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.0e8)] {
 // CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.468) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.468) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc5_21.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -169,7 +169,7 @@ class C(C:! type) {
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T.loc5_11.1) [symbolic = %C (constants.%C.f06)]
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %T.loc5_11.1 [symbolic = %C.elem (constants.%C.elem.cca)]
 // CHECK:STDOUT:   %struct_type.x: type = struct_type {.x: @C.%T.loc5_11.1 (%T)} [symbolic = %struct_type.x (constants.%struct_type.x.2ac)]
-// CHECK:STDOUT:   %complete_type.loc7_3.2: <witness> = complete_type_witness %struct_type.x [symbolic = %complete_type.loc7_3.2 (constants.%complete_type.4339)]
+// CHECK:STDOUT:   %complete_type.loc7_3.2: <witness> = complete_type_witness %struct_type.x [symbolic = %complete_type.loc7_3.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc5_11.2 [symbolic = %T.loc5_11.1 (constants.%T)]
@@ -177,8 +177,8 @@ class C(C:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f06 [symbolic = @C.as.Destroy.impl.%C (constants.%C.f06)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.c0e)]
-// CHECK:STDOUT:     %complete_type.loc7_3.1: <witness> = complete_type_witness constants.%struct_type.x.2ac [symbolic = %complete_type.loc7_3.2 (constants.%complete_type.4339)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.6c6)]
+// CHECK:STDOUT:     %complete_type.loc7_3.1: <witness> = complete_type_witness constants.%struct_type.x.2ac [symbolic = %complete_type.loc7_3.2 (constants.%complete_type.433)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc7_3.1
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -203,7 +203,7 @@ class C(C:! type) {
 // CHECK:STDOUT:   %v.var: ref %C.d45 = var %v.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc8_26.1: %struct_type.x.c96 = struct_literal (%int_1)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_26.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_26.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -221,8 +221,8 @@ class C(C:! type) {
 // CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%i32) [concrete = constants.%C.d45]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %C.d45 = bind_name v, %v.var
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%C.as.Destroy.impl.Op.be7
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.be7, @C.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%C.as.Destroy.impl.Op.05c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.05c, @C.as.Destroy.impl.Op(constants.%i32) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_3: <bound method> = bound_method %v.var, %C.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.9c7 = addr_of %v.var
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc8_3(%addr)
@@ -247,7 +247,7 @@ class C(C:! type) {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f06
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c0e
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.6c6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -271,11 +271,11 @@ class C(C:! type) {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%i32) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %C => constants.%C.d45
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.13b
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ba5
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.0d3
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.be7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.072
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.05c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%i32) {
diff --git a/toolchain/check/testdata/generic/template/convert.carbon b/toolchain/check/testdata/generic/template/convert.carbon
index 6f0527d27369..1a86185c683a 100644
--- a/toolchain/check/testdata/generic/template/convert.carbon
+++ b/toolchain/check/testdata/generic/template/convert.carbon
@@ -83,16 +83,16 @@ fn Test(d: D) -> i32 {
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.96d: <witness> = impl_witness @C.%ImplicitAs.impl_witness_table [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.9ce: <witness> = impl_witness @C.%ImplicitAs.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type: type = fn_type @C.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert: %C.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value %C, (%ImplicitAs.impl_witness.96d) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value %C, (%ImplicitAs.impl_witness.9ce) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -111,14 +111,14 @@ fn Test(d: D) -> i32 {
 // CHECK:STDOUT:   %inst.as_compatible.c0a: <instruction> = inst_value [concrete] {
 // CHECK:STDOUT:     %.fbe: %C = as_compatible @F.%x.ref
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.2ce: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %inst.splice_block.1fd: <instruction> = inst_value [concrete] {
-// CHECK:STDOUT:     %.96d: %i32 = splice_block %.521 {
-// CHECK:STDOUT:       %impl.elem0.2ce: %.2ce = impl_witness_access %ImplicitAs.impl_witness.96d, element0 [concrete = %C.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %.fbe, %impl.elem0.2ce
+// CHECK:STDOUT:   %.b3b: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %inst.splice_block.7a1: <instruction> = inst_value [concrete] {
+// CHECK:STDOUT:     %.a23: %i32 = splice_block %.a7c {
+// CHECK:STDOUT:       %impl.elem0.2ba: %.b3b = impl_witness_access %ImplicitAs.impl_witness.9ce, element0 [concrete = %C.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:       %bound_method: <bound method> = bound_method %.fbe, %impl.elem0.2ba
 // CHECK:STDOUT:       %C.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method(%.fbe)
-// CHECK:STDOUT:       %.fa7: %i32 = value_of_initializer %C.as.ImplicitAs.impl.Convert.call
-// CHECK:STDOUT:       %.521: %i32 = converted %.fbe, %.fa7
+// CHECK:STDOUT:       %.2e3: %i32 = value_of_initializer %C.as.ImplicitAs.impl.Convert.call
+// CHECK:STDOUT:       %.a7c: %i32 = converted %.fbe, %.2e3
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -243,14 +243,14 @@ fn Test(d: D) -> i32 {
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32)> [concrete = constants.%ImplicitAs.type.205]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32)> [concrete = constants.%ImplicitAs.type.e8c]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (@C.as.ImplicitAs.impl.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness.96d]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness.9ce]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n [concrete = constants.%complete_type.54b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -332,7 +332,7 @@ fn Test(d: D) -> i32 {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.54b
 // CHECK:STDOUT:   %.loc5_11.3 => constants.%inst.as_compatible.c0a
-// CHECK:STDOUT:   %.loc5_11.4 => constants.%inst.splice_block.1fd
+// CHECK:STDOUT:   %.loc5_11.4 => constants.%inst.splice_block.7a1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_cannot_convert.carbon
@@ -353,7 +353,7 @@ fn Test(d: D) -> i32 {
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -451,7 +451,7 @@ fn Test(d: D) -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/generic/template/member_access.carbon b/toolchain/check/testdata/generic/template/member_access.carbon
index 644a071e797b..fde78e3f4ff5 100644
--- a/toolchain/check/testdata/generic/template/member_access.carbon
+++ b/toolchain/check/testdata/generic/template/member_access.carbon
@@ -495,7 +495,7 @@ fn Test(e: E) {
 // CHECK:STDOUT:   %F.a8a: type = class_type @F.loc15 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.51a: <witness> = impl_witness @F.loc15.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6fa: <witness> = impl_witness @F.loc15.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.01c: type = ptr_type %F.a8a [concrete]
 // CHECK:STDOUT:   %pattern_type.463: type = pattern_type %ptr.01c [concrete]
 // CHECK:STDOUT:   %F.as.Destroy.impl.Op.type: type = fn_type @F.as.Destroy.impl.Op [concrete]
@@ -503,7 +503,7 @@ fn Test(e: E) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %E.elem: type = unbound_element_type %E, %F.a8a [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c1f: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6cf: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.742: type = ptr_type %E [concrete]
 // CHECK:STDOUT:   %pattern_type.88c: type = pattern_type %ptr.742 [concrete]
 // CHECK:STDOUT:   %E.as.Destroy.impl.Op.type: type = fn_type @E.as.Destroy.impl.Op [concrete]
@@ -621,7 +621,7 @@ fn Test(e: E) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%E [concrete = constants.%E]
 // CHECK:STDOUT:   impl_decl @E.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@E.as.Destroy.impl.%E.as.Destroy.impl.Op.decl), @E.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c1f]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6cf]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n.e4c [concrete = constants.%complete_type.5ba]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -635,7 +635,7 @@ fn Test(e: E) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%F.a8a [concrete = constants.%F.a8a]
 // CHECK:STDOUT:   impl_decl @F.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@F.as.Destroy.impl.%F.as.Destroy.impl.Op.decl), @F.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.51a]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6fa]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/generic/template/unimplemented.carbon b/toolchain/check/testdata/generic/template/unimplemented.carbon
index 3dc1ac58ceb1..e7324040e669 100644
--- a/toolchain/check/testdata/generic/template/unimplemented.carbon
+++ b/toolchain/check/testdata/generic/template/unimplemented.carbon
@@ -286,7 +286,7 @@ fn F[template T:! type](x: T) {
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.d628ce.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T.8b3d5d.1)> [template]
+// CHECK:STDOUT:   %ImplicitAs.type.dc4d8f.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T.8b3d5d.1)> [template]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
@@ -294,17 +294,17 @@ fn F[template T:! type](x: T) {
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %ptr.79f131.2: type = ptr_type %T.8b3d5d.1 [template]
 // CHECK:STDOUT:   %require_complete.6e5e64.2: <witness> = require_complete_type %ptr.79f131.2 [template]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.8b3d5d.1, @Destroy [template]
-// CHECK:STDOUT:   %Destroy.facet.713: %Destroy.type = facet_value %T.8b3d5d.1, (%Destroy.lookup_impl_witness) [template]
-// CHECK:STDOUT:   %.a63: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.713 [template]
-// CHECK:STDOUT:   %impl.elem0.538: %.a63 = impl_witness_access %Destroy.lookup_impl_witness, element0 [template]
-// CHECK:STDOUT:   %specific_impl_fn.1af: <specific function> = specific_impl_function %impl.elem0.538, @Destroy.Op(%Destroy.facet.713) [template]
+// CHECK:STDOUT:   %Destroy.facet.572: %Destroy.type = facet_value %T.8b3d5d.1, (%Destroy.lookup_impl_witness) [template]
+// CHECK:STDOUT:   %.f8c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.572 [template]
+// CHECK:STDOUT:   %impl.elem0.796: %.f8c = impl_witness_access %Destroy.lookup_impl_witness, element0 [template]
+// CHECK:STDOUT:   %specific_impl_fn.127: <specific function> = specific_impl_function %impl.elem0.796, @Destroy.Op(%Destroy.facet.572) [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -345,14 +345,14 @@ fn F[template T:! type](x: T) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc4: <witness> = require_complete_type %T.loc4_15.1 [template = %require_complete.loc4 (constants.%require_complete.4aeca8.1)]
-// CHECK:STDOUT:   %ImplicitAs.type.loc14_3.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T.loc4_15.1)> [template = %ImplicitAs.type.loc14_3.2 (constants.%ImplicitAs.type.d628ce.2)]
+// CHECK:STDOUT:   %ImplicitAs.type.loc14_3.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T.loc4_15.1)> [template = %ImplicitAs.type.loc14_3.2 (constants.%ImplicitAs.type.dc4d8f.2)]
 // CHECK:STDOUT:   %.loc14_3.4: <instruction> = access_member_action %ImplicitAs.type.loc14_3.1, Convert [template]
 // CHECK:STDOUT:   %.loc14_3.5: type = type_of_inst %.loc14_3.4 [template]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc4_15.1, @Destroy [template = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.loc4_15.1, (%Destroy.lookup_impl_witness) [template = %Destroy.facet (constants.%Destroy.facet.713)]
-// CHECK:STDOUT:   %.loc14_3.6: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [template = %.loc14_3.6 (constants.%.a63)]
-// CHECK:STDOUT:   %impl.elem0.loc14_3.2: @F.%.loc14_3.6 (%.a63) = impl_witness_access %Destroy.lookup_impl_witness, element0 [template = %impl.elem0.loc14_3.2 (constants.%impl.elem0.538)]
-// CHECK:STDOUT:   %specific_impl_fn.loc14_3.2: <specific function> = specific_impl_function %impl.elem0.loc14_3.2, @Destroy.Op(%Destroy.facet) [template = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.1af)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.loc4_15.1, (%Destroy.lookup_impl_witness) [template = %Destroy.facet (constants.%Destroy.facet.572)]
+// CHECK:STDOUT:   %.loc14_3.6: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [template = %.loc14_3.6 (constants.%.f8c)]
+// CHECK:STDOUT:   %impl.elem0.loc14_3.2: @F.%.loc14_3.6 (%.f8c) = impl_witness_access %Destroy.lookup_impl_witness, element0 [template = %impl.elem0.loc14_3.2 (constants.%impl.elem0.796)]
+// CHECK:STDOUT:   %specific_impl_fn.loc14_3.2: <specific function> = specific_impl_function %impl.elem0.loc14_3.2, @Destroy.Op(%Destroy.facet) [template = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.127)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T.loc4_15.1 [template = %ptr (constants.%ptr.79f131.2)]
 // CHECK:STDOUT:   %require_complete.loc14: <witness> = require_complete_type %ptr [template = %require_complete.loc14 (constants.%require_complete.6e5e64.2)]
 // CHECK:STDOUT:
@@ -364,7 +364,7 @@ fn F[template T:! type](x: T) {
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %v.var: ref @F.%T.loc4_15.1 (%T.8b3d5d.1) = var %v.var_patt
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
-// CHECK:STDOUT:     %ImplicitAs.type.loc14_3.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T.8b3d5d.1)> [template = %ImplicitAs.type.loc14_3.2 (constants.%ImplicitAs.type.d628ce.2)]
+// CHECK:STDOUT:     %ImplicitAs.type.loc14_3.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T.8b3d5d.1)> [template = %ImplicitAs.type.loc14_3.2 (constants.%ImplicitAs.type.dc4d8f.2)]
 // CHECK:STDOUT:     %.loc14_3.1: @F.%.loc14_3.5 (@F.%.loc14_3.5) = splice_inst %.loc14_3.4
 // CHECK:STDOUT:     %.loc14_3.2: @F.%T.loc4_15.1 (%T.8b3d5d.1) = converted %int_0, <error> [concrete = <error>]
 // CHECK:STDOUT:     assign %v.var, <error>
@@ -383,14 +383,14 @@ fn F[template T:! type](x: T) {
 // CHECK:STDOUT:       %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %w: ref %i32 = bind_name w, %w.var
-// CHECK:STDOUT:     %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:     %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:     %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:     %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc22: <bound method> = bound_method %w.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:     %addr.loc22: %ptr.235 = addr_of %w.var
 // CHECK:STDOUT:     %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc22(%addr.loc22)
-// CHECK:STDOUT:     %impl.elem0.loc14_3.1: @F.%.loc14_3.6 (%.a63) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [template = %impl.elem0.loc14_3.2 (constants.%impl.elem0.538)]
+// CHECK:STDOUT:     %impl.elem0.loc14_3.1: @F.%.loc14_3.6 (%.f8c) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [template = %impl.elem0.loc14_3.2 (constants.%impl.elem0.796)]
 // CHECK:STDOUT:     %bound_method.loc14_3.1: <bound method> = bound_method %v.var, %impl.elem0.loc14_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc14_3.1: <specific function> = specific_impl_function %impl.elem0.loc14_3.1, @Destroy.Op(constants.%Destroy.facet.713) [template = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.1af)]
+// CHECK:STDOUT:     %specific_impl_fn.loc14_3.1: <specific function> = specific_impl_function %impl.elem0.loc14_3.1, @Destroy.Op(constants.%Destroy.facet.572) [template = %specific_impl_fn.loc14_3.2 (constants.%specific_impl_fn.127)]
 // CHECK:STDOUT:     %bound_method.loc14_3.2: <bound method> = bound_method %v.var, %specific_impl_fn.loc14_3.1
 // CHECK:STDOUT:     %addr.loc14: @F.%ptr (%ptr.79f131.2) = addr_of %v.var
 // CHECK:STDOUT:     %.loc14_3.3: init %empty_tuple.type = call %bound_method.loc14_3.2(%addr.loc14)
diff --git a/toolchain/check/testdata/if_expr/basic.carbon b/toolchain/check/testdata/if_expr/basic.carbon
index 70fce21d1146..ba4002d3f9b0 100644
--- a/toolchain/check/testdata/if_expr/basic.carbon
+++ b/toolchain/check/testdata/if_expr/basic.carbon
@@ -39,25 +39,25 @@ fn F(b: bool, n: i32, m: i32) -> i32 {
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.fa9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.606: %T.as.Destroy.impl.Op.type.fa9 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.606, @T.as.Destroy.impl.Op(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0e7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.0e7 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d4e, @T.as.Destroy.impl.Op(%array_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -72,8 +72,8 @@ fn F(b: bool, n: i32, m: i32) -> i32 {
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -128,7 +128,7 @@ fn F(b: bool, n: i32, m: i32) -> i32 {
 // CHECK:STDOUT:   %x.var: ref %array_type = var %x.var_patt
 // CHECK:STDOUT:   %int_0.loc16_27: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc16_29.1: %tuple.type = tuple_literal (%int_0.loc16_27)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_29.1: <bound method> = bound_method %int_0.loc16_27, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_29.2: <bound method> = bound_method %int_0.loc16_27, %specific_fn [concrete = constants.%bound_method]
@@ -170,8 +170,8 @@ fn F(b: bool, n: i32, m: i32) -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.expr.result:
 // CHECK:STDOUT:   %.loc17_10: %i32 = block_arg !if.expr.result
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.606
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.606, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.d4e
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d4e, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.260 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc16_3(%addr)
diff --git a/toolchain/check/testdata/if_expr/constant_condition.carbon b/toolchain/check/testdata/if_expr/constant_condition.carbon
index 8e80d871141f..b40594482ee6 100644
--- a/toolchain/check/testdata/if_expr/constant_condition.carbon
+++ b/toolchain/check/testdata/if_expr/constant_condition.carbon
@@ -50,26 +50,26 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
 // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
@@ -81,13 +81,13 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   %Constant: %Constant.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %PartiallyConstant.type: type = fn_type @PartiallyConstant [concrete]
 // CHECK:STDOUT:   %PartiallyConstant: %PartiallyConstant.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -102,8 +102,8 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -181,10 +181,10 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT: fn @A() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_25.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_25.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_25.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc15_25.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc15_25.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_25.2: %i32 = converted %int_1, %.loc15_25.1 [concrete = constants.%int_1.5d2]
@@ -194,10 +194,10 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT: fn @B() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_25.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_25.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_25.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc16_25.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc16_25.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_25.2: %i32 = converted %int_2, %.loc16_25.1 [concrete = constants.%int_2.ef8]
@@ -260,10 +260,10 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc27_3.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc27_3.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc27_3.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc27_3.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc27_3.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc27_3: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %v.var, %.loc27_3
@@ -325,13 +325,13 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   %.loc29_11: %ptr.235 = bind_value %w.ref
 // CHECK:STDOUT:   %.loc29_10.1: ref %i32 = deref %.loc29_11
 // CHECK:STDOUT:   %.loc29_10.2: %i32 = bind_value %.loc29_10.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %w.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %w.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc28: <bound method> = bound_method %w.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc28_3: %ptr.5d5 = addr_of %w.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc28(%addr.loc28_3)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc27_3.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc27: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc27_3.3(%addr.loc27)
@@ -346,10 +346,10 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc33_3.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc33_3.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc33_3.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc33_3.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc33_3.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc33_3: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %v.var, %.loc33_3
@@ -408,13 +408,13 @@ fn PartiallyConstant(t: type) -> i32 {
 // CHECK:STDOUT:   %.loc35_11: %ptr.235 = bind_value %w.ref
 // CHECK:STDOUT:   %.loc35_10.1: ref %i32 = deref %.loc35_11
 // CHECK:STDOUT:   %.loc35_10.2: %i32 = bind_value %.loc35_10.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %w.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %w.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc34: <bound method> = bound_method %w.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc34_3: %ptr.5d5 = addr_of %w.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc34(%addr.loc34_3)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc33_3.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc33: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc33_3.3(%addr.loc33)
diff --git a/toolchain/check/testdata/if_expr/control_flow.carbon b/toolchain/check/testdata/if_expr/control_flow.carbon
index 0f64cbe6ee61..0be45bf3de80 100644
--- a/toolchain/check/testdata/if_expr/control_flow.carbon
+++ b/toolchain/check/testdata/if_expr/control_flow.carbon
@@ -32,25 +32,25 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
 // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
@@ -69,8 +69,8 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -123,10 +123,10 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT: fn @A() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_25.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_25.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_25.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc15_25.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc15_25.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_25.2: %i32 = converted %int_1, %.loc15_25.1 [concrete = constants.%int_1.5d2]
@@ -136,10 +136,10 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT: fn @B() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_25.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_25.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_25.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc16_25.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc16_25.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_25.2: %i32 = converted %int_2, %.loc16_25.1 [concrete = constants.%int_2.ef8]
diff --git a/toolchain/check/testdata/if_expr/nested.carbon b/toolchain/check/testdata/if_expr/nested.carbon
index f76b74883c1a..6d0884ddb13d 100644
--- a/toolchain/check/testdata/if_expr/nested.carbon
+++ b/toolchain/check/testdata/if_expr/nested.carbon
@@ -32,31 +32,31 @@ fn F(a: bool, b: bool, c: bool) -> i32 {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -71,8 +71,8 @@ fn F(a: bool, b: bool, c: bool) -> i32 {
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -132,10 +132,10 @@ fn F(a: bool, b: bool, c: bool) -> i32 {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_32.loc16_25: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc16_25: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc16_25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc16_25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc16_25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc16_25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc16_25: <specific function> = specific_function %impl.elem0.loc16_25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_25.2: <bound method> = bound_method %int_1, %specific_fn.loc16_25 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc16_25.2: <bound method> = bound_method %int_1, %specific_fn.loc16_25 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_25: init %i32 = call %bound_method.loc16_25.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_25 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16_25.2: %i32 = converted %int_1, %.loc16_25.1 [concrete = constants.%int_1.5d2]
@@ -143,10 +143,10 @@ fn F(a: bool, b: bool, c: bool) -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.expr.else.loc16_20:
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc16_32: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_32.1: <bound method> = bound_method %int_2, %impl.elem0.loc16_32 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc16_32: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_32.1: <bound method> = bound_method %int_2, %impl.elem0.loc16_32 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc16_32: <specific function> = specific_function %impl.elem0.loc16_32, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_32.2: <bound method> = bound_method %int_2, %specific_fn.loc16_32 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc16_32.2: <bound method> = bound_method %int_2, %specific_fn.loc16_32 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_32: init %i32 = call %bound_method.loc16_32.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_32.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_32 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_32.2: %i32 = converted %int_2, %.loc16_32.1 [concrete = constants.%int_2.ef8]
@@ -164,10 +164,10 @@ fn F(a: bool, b: bool, c: bool) -> i32 {
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %int_32.loc16_49: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc16_49: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc16_49: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_49.1: <bound method> = bound_method %int_3, %impl.elem0.loc16_49 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc16_49: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_49.1: <bound method> = bound_method %int_3, %impl.elem0.loc16_49 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc16_49: <specific function> = specific_function %impl.elem0.loc16_49, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_49.2: <bound method> = bound_method %int_3, %specific_fn.loc16_49 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc16_49.2: <bound method> = bound_method %int_3, %specific_fn.loc16_49 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_49: init %i32 = call %bound_method.loc16_49.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc16_49.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_49 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc16_49.2: %i32 = converted %int_3, %.loc16_49.1 [concrete = constants.%int_3.822]
@@ -175,10 +175,10 @@ fn F(a: bool, b: bool, c: bool) -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.expr.else.loc16_44:
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc16_56: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_56.1: <bound method> = bound_method %int_4, %impl.elem0.loc16_56 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc16_56: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_56.1: <bound method> = bound_method %int_4, %impl.elem0.loc16_56 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc16_56: <specific function> = specific_function %impl.elem0.loc16_56, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_56.2: <bound method> = bound_method %int_4, %specific_fn.loc16_56 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc16_56.2: <bound method> = bound_method %int_4, %specific_fn.loc16_56 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_56: init %i32 = call %bound_method.loc16_56.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc16_56.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_56 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc16_56.2: %i32 = converted %int_4, %.loc16_56.1 [concrete = constants.%int_4.940]
diff --git a/toolchain/check/testdata/if_expr/struct.carbon b/toolchain/check/testdata/if_expr/struct.carbon
index 9d063f6e5d78..4f9f1106ad2c 100644
--- a/toolchain/check/testdata/if_expr/struct.carbon
+++ b/toolchain/check/testdata/if_expr/struct.carbon
@@ -42,28 +42,28 @@ fn F(cond: bool) {
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.501 = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.da3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.501) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.9db: %T.as.Destroy.impl.Op.type.da3 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.9db, @T.as.Destroy.impl.Op(%struct_type.a.b.501) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.eb5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.501) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.722: %T.as.Destroy.impl.Op.type.eb5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.722, @T.as.Destroy.impl.Op(%struct_type.a.b.501) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -78,8 +78,8 @@ fn F(cond: bool) {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -130,18 +130,18 @@ fn F(cond: bool) {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc18_46.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
-// CHECK:STDOUT:   %impl.elem0.loc18_46.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_46.1: <bound method> = bound_method %int_1, %impl.elem0.loc18_46.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc18_46.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_46.1: <bound method> = bound_method %int_1, %impl.elem0.loc18_46.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc18_46.1: <specific function> = specific_function %impl.elem0.loc18_46.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_46.2: <bound method> = bound_method %int_1, %specific_fn.loc18_46.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc18_46.2: <bound method> = bound_method %int_1, %specific_fn.loc18_46.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_46.1: init %i32 = call %bound_method.loc18_46.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_46.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_46.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_46.3: ref %i32 = struct_access %a.var, element0
 // CHECK:STDOUT:   %.loc18_46.4: init %i32 = initialize_from %.loc18_46.2 to %.loc18_46.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc18_46.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_46.3: <bound method> = bound_method %int_2, %impl.elem0.loc18_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc18_46.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_46.3: <bound method> = bound_method %int_2, %impl.elem0.loc18_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc18_46.2: <specific function> = specific_function %impl.elem0.loc18_46.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_46.4: <bound method> = bound_method %int_2, %specific_fn.loc18_46.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc18_46.4: <bound method> = bound_method %int_2, %specific_fn.loc18_46.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_46.2: init %i32 = call %bound_method.loc18_46.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_46.5: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_46.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_46.6: ref %i32 = struct_access %a.var, element1
@@ -184,8 +184,8 @@ fn F(cond: bool) {
 // CHECK:STDOUT: !if.expr.result:
 // CHECK:STDOUT:   %.loc19_5: %struct_type.a.b.501 = block_arg !if.expr.result
 // CHECK:STDOUT:   %G.call: init %empty_tuple.type = call %G.ref(%.loc19_5)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.9db
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.9db, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.501) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.722
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.722, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.501) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc18_3: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.3ee = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc18_3(%addr)
diff --git a/toolchain/check/testdata/impl/assoc_const_self.carbon b/toolchain/check/testdata/impl/assoc_const_self.carbon
index 4c22bad67bf9..8be5d6fa5cb7 100644
--- a/toolchain/check/testdata/impl/assoc_const_self.carbon
+++ b/toolchain/check/testdata/impl/assoc_const_self.carbon
@@ -104,47 +104,47 @@ fn CallF() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %require_complete.9b1: <witness> = require_complete_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %require_complete.75b: <witness> = require_complete_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
-// CHECK:STDOUT:   %assoc0.45f: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
+// CHECK:STDOUT:   %assoc0.f83: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet.74c: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %require_complete.d0c: <witness> = require_complete_type %.Self.as_type [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.d8c: %.Self.as_type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
+// CHECK:STDOUT:   %I.facet.86d: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %require_complete.a71: <witness> = require_complete_type %.Self.as_type [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.254: %.Self.as_type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
-// CHECK:STDOUT:   %I_where.type.6ef: type = facet_type <@I where %impl.elem0.d8c = %empty_struct> [concrete]
-// CHECK:STDOUT:   %I.impl_witness.3d1: <witness> = impl_witness file.%I.impl_witness_table.loc8 [concrete]
-// CHECK:STDOUT:   %I.facet.b01: %I.type = facet_value %empty_struct_type, (%I.impl_witness.3d1) [concrete]
+// CHECK:STDOUT:   %I_where.type.492: type = facet_type <@I where %impl.elem0.254 = %empty_struct> [concrete]
+// CHECK:STDOUT:   %I.impl_witness.a24: <witness> = impl_witness file.%I.impl_witness_table.loc8 [concrete]
+// CHECK:STDOUT:   %I.facet.159: %I.type = facet_value %empty_struct_type, (%I.impl_witness.a24) [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %I_where.type.3d4: type = facet_type <@I where %impl.elem0.d8c = %int_0.5c6> [concrete]
-// CHECK:STDOUT:   %I.impl_witness.5ef: <witness> = impl_witness file.%I.impl_witness_table.loc10 [concrete]
-// CHECK:STDOUT:   %I.facet.4b7: %I.type = facet_value %i32, (%I.impl_witness.5ef) [concrete]
+// CHECK:STDOUT:   %I_where.type.d41: type = facet_type <@I where %impl.elem0.254 = %int_0.5c6> [concrete]
+// CHECK:STDOUT:   %I.impl_witness.122: <witness> = impl_witness file.%I.impl_witness_table.loc10 [concrete]
+// CHECK:STDOUT:   %I.facet.620: %I.type = facet_value %i32, (%I.impl_witness.122) [concrete]
 // CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
 // CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -158,8 +158,8 @@ fn CallF() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -173,42 +173,42 @@ fn CallF() {
 // CHECK:STDOUT:     %.loc8_7.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %.loc8_7.2: type = converted %.loc8_7.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc8_20: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.d8c]
+// CHECK:STDOUT:     %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.254]
 // CHECK:STDOUT:     %.loc8_26.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %empty_struct: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
 // CHECK:STDOUT:     %.loc8_26.2: %empty_struct_type = converted %.loc8_26.1, %empty_struct [concrete = constants.%empty_struct]
-// CHECK:STDOUT:     %.loc8_14: type = where_expr %.Self [concrete = constants.%I_where.type.6ef] {
+// CHECK:STDOUT:     %.loc8_14: type = where_expr %.Self [concrete = constants.%I_where.type.492] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%I.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc8_26.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table.loc8 = impl_witness_table (%impl_witness_assoc_constant.loc8), @empty_struct_type.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc8: <witness> = impl_witness %I.impl_witness_table.loc8 [concrete = constants.%I.impl_witness.3d1]
+// CHECK:STDOUT:   %I.impl_witness.loc8: <witness> = impl_witness %I.impl_witness_table.loc8 [concrete = constants.%I.impl_witness.a24]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc8: %empty_struct_type = impl_witness_assoc_constant constants.%empty_struct [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   impl_decl @i32.as.I.impl [concrete] {} {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc10_21: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.d8c]
+// CHECK:STDOUT:     %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.254]
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:     %.loc10_15: type = where_expr %.Self [concrete = constants.%I_where.type.3d4] {
+// CHECK:STDOUT:     %.loc10_15: type = where_expr %.Self [concrete = constants.%I_where.type.d41] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%I.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %int_0
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10), @i32.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc10: <witness> = impl_witness %I.impl_witness_table.loc10 [concrete = constants.%I.impl_witness.5ef]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %I.impl_witness.loc10: <witness> = impl_witness %I.impl_witness_table.loc10 [concrete = constants.%I.impl_witness.122]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc10_15.1: <bound method> = bound_method constants.%int_0.5c6, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc10_15.2: <bound method> = bound_method constants.%int_0.5c6, %specific_fn [concrete = constants.%bound_method]
@@ -219,9 +219,9 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.b70) = assoc_const_decl @V [concrete] {
-// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.4af) = assoc_const_decl @V [concrete] {
+// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -231,11 +231,11 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic assoc_const @V(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.9b1)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.75b)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.b70);
+// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.4af);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_struct_type.as.I.impl: %.loc8_7.2 as %.loc8_14 {
@@ -248,26 +248,26 @@ fn CallF() {
 // CHECK:STDOUT:   witness = file.%I.impl_witness.loc10
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.9b1
+// CHECK:STDOUT: specific @V(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.75b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.74c) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.74c
+// CHECK:STDOUT: specific @V(constants.%I.facet.86d) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.86d
 // CHECK:STDOUT:   %Self.as_type => constants.%.Self.as_type
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d0c
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.b01) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.b01
+// CHECK:STDOUT: specific @V(constants.%I.facet.159) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.159
 // CHECK:STDOUT:   %Self.as_type => constants.%empty_struct_type
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.357
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.4b7) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.4b7
+// CHECK:STDOUT: specific @V(constants.%I.facet.620) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.620
 // CHECK:STDOUT:   %Self.as_type => constants.%i32
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.f8a
 // CHECK:STDOUT: }
@@ -276,22 +276,22 @@ fn CallF() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %require_complete.9b1: <witness> = require_complete_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %require_complete.75b: <witness> = require_complete_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
-// CHECK:STDOUT:   %assoc0.45f: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
+// CHECK:STDOUT:   %assoc0.f83: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet.74c: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %require_complete.d0c: <witness> = require_complete_type %.Self.as_type [symbolic_self]
+// CHECK:STDOUT:   %I.facet.86d: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %require_complete.a71: <witness> = require_complete_type %.Self.as_type [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: %.Self.as_type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %int_0> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %I.facet.7ee: %I.type = facet_value %empty_struct_type, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet.650: %I.type = facet_value %empty_struct_type, (%I.impl_witness) [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
@@ -319,7 +319,7 @@ fn CallF() {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
-// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc15_20: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
@@ -336,9 +336,9 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.b70) = assoc_const_decl @V [concrete] {
-// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.4af) = assoc_const_decl @V [concrete] {
+// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -348,11 +348,11 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic assoc_const @V(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.9b1)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.75b)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.b70);
+// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.4af);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_struct_type.as.I.impl: %.loc15_7.2 as %.loc15_14 {
@@ -360,20 +360,20 @@ fn CallF() {
 // CHECK:STDOUT:   witness = file.%I.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.9b1
+// CHECK:STDOUT: specific @V(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.75b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.74c) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.74c
+// CHECK:STDOUT: specific @V(constants.%I.facet.86d) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.86d
 // CHECK:STDOUT:   %Self.as_type => constants.%.Self.as_type
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d0c
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.7ee) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.7ee
+// CHECK:STDOUT: specific @V(constants.%I.facet.650) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.650
 // CHECK:STDOUT:   %Self.as_type => constants.%empty_struct_type
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
 // CHECK:STDOUT: }
@@ -382,11 +382,11 @@ fn CallF() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %require_complete.9b1: <witness> = require_complete_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %require_complete.75b: <witness> = require_complete_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
-// CHECK:STDOUT:   %assoc0.45f: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
+// CHECK:STDOUT:   %assoc0.f83: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -400,26 +400,26 @@ fn CallF() {
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.15e: type = facet_type <@ImplicitAs, @ImplicitAs(%C)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.b8d: type = facet_type <@ImplicitAs, @ImplicitAs(%C)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.56d: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%C) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness file.%ImplicitAs.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.ImplicitAs.impl.Convert.type: type = fn_type @empty_tuple.type.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.ImplicitAs.impl.Convert: %empty_tuple.type.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.15e = facet_value %empty_tuple.type, (%ImplicitAs.impl_witness) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.b8d = facet_value %empty_tuple.type, (%ImplicitAs.impl_witness) [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
 // CHECK:STDOUT:   %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet.74c: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %require_complete.d0c: <witness> = require_complete_type %.Self.as_type [symbolic_self]
+// CHECK:STDOUT:   %I.facet.86d: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %require_complete.a71: <witness> = require_complete_type %.Self.as_type [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: %.Self.as_type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %empty_tuple> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %I.facet.5dc: %I.type = facet_value %C, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.5c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.56d, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %I.facet.d94: %I.type = facet_value %C, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %.5d5: type = fn_type_with_self_type %ImplicitAs.Convert.type.56d, %ImplicitAs.facet [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %empty_tuple, %empty_tuple.type.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -449,7 +449,7 @@ fn CallF() {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%C)> [concrete = constants.%ImplicitAs.type.15e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%C)> [concrete = constants.%ImplicitAs.type.b8d]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (@empty_tuple.type.as.ImplicitAs.impl.%empty_tuple.type.as.ImplicitAs.impl.Convert.decl), @empty_tuple.type.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness %ImplicitAs.impl_witness_table [concrete = constants.%ImplicitAs.impl_witness]
@@ -458,7 +458,7 @@ fn CallF() {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
-// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:     %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc18_19: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
@@ -472,7 +472,7 @@ fn CallF() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
-// CHECK:STDOUT:   %impl.elem0: %.5c3 = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %impl.elem0: %.5d5 = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.ImplicitAs.impl.Convert]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method constants.%empty_tuple, %impl.elem0 [concrete = constants.%empty_tuple.type.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %.loc18_13.1: ref %C = temporary_storage
 // CHECK:STDOUT:   %empty_tuple.type.as.ImplicitAs.impl.Convert.call: init %C = call %bound_method(constants.%empty_tuple) to %.loc18_13.1
@@ -483,9 +483,9 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.b70) = assoc_const_decl @V [concrete] {
-// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.4af) = assoc_const_decl @V [concrete] {
+// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -495,11 +495,11 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic assoc_const @V(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.9b1)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.75b)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.b70);
+// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.4af);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.Destroy.impl: @C.%Self.ref as constants.%Destroy.type {
@@ -569,20 +569,20 @@ fn CallF() {
 // CHECK:STDOUT:   return %.loc11_42 to %return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.9b1
+// CHECK:STDOUT: specific @V(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.75b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.74c) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.74c
+// CHECK:STDOUT: specific @V(constants.%I.facet.86d) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.86d
 // CHECK:STDOUT:   %Self.as_type => constants.%.Self.as_type
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d0c
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%I.facet.5dc) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.5dc
+// CHECK:STDOUT: specific @V(constants.%I.facet.d94) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.d94
 // CHECK:STDOUT:   %Self.as_type => constants.%C
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
 // CHECK:STDOUT: }
@@ -598,32 +598,32 @@ fn CallF() {
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.8a1: type = facet_type <@I, @I(%N)> [symbolic]
-// CHECK:STDOUT:   %Self.3a0: %I.type.8a1 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.72b: type = facet_access_type %Self.3a0 [symbolic]
-// CHECK:STDOUT:   %array_type: type = array_type %N, %Self.as_type.72b [symbolic]
+// CHECK:STDOUT:   %I.type.2ba: type = facet_type <@I, @I(%N)> [symbolic]
+// CHECK:STDOUT:   %Self.dba: %I.type.2ba = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.174: type = facet_access_type %Self.dba [symbolic]
+// CHECK:STDOUT:   %array_type: type = array_type %N, %Self.as_type.174 [symbolic]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %array_type [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.9df: type = assoc_entity_type @I, @I(%N) [symbolic]
-// CHECK:STDOUT:   %assoc0.293: %I.assoc_type.9df = assoc_entity element0, @I.%V [symbolic]
+// CHECK:STDOUT:   %assoc0.de5: %I.assoc_type.9df = assoc_entity element0, @I.%V [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
 // CHECK:STDOUT:   %Negate.impl_witness: <witness> = impl_witness imports.%Negate.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness) [concrete]
-// CHECK:STDOUT:   %.d3d: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %.e9a: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.type: type = fn_type @Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op: %Core.IntLiteral.as.Negate.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.bound: <bound method> = bound_method %int_1, %Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %int_-1: Core.IntLiteral = int_value -1 [concrete]
-// CHECK:STDOUT:   %I.type.057: type = facet_type <@I, @I(%int_-1)> [concrete]
-// CHECK:STDOUT:   %.Self.e4b: %I.type.057 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Self.e2e: %I.type.057 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.71e: type = facet_type <@I, @I(%int_-1)> [concrete]
+// CHECK:STDOUT:   %.Self.435: %I.type.71e = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Self.f9b: %I.type.71e = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.247: type = assoc_entity_type @I, @I(%int_-1) [concrete]
-// CHECK:STDOUT:   %assoc0.350: %I.assoc_type.247 = assoc_entity element0, @I.%V [concrete]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.e4b [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.e4b, @I, @I(%int_-1) [symbolic_self]
-// CHECK:STDOUT:   %I.facet: %I.type.057 = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %assoc0.fdf: %I.assoc_type.247 = assoc_entity element0, @I.%V [concrete]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.435 [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.435, @I, @I(%int_-1) [symbolic_self]
+// CHECK:STDOUT:   %I.facet: %I.type.71e = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -636,8 +636,8 @@ fn CallF() {
 // CHECK:STDOUT:   %Core.IntLiteral: %IntLiteral.type = import_ref Core//prelude/parts/int_literal, IntLiteral, loaded [concrete = constants.%IntLiteral]
 // CHECK:STDOUT:   %Core.Negate: type = import_ref Core//prelude/parts/int_literal, Negate, loaded [concrete = constants.%Negate.type]
 // CHECK:STDOUT:   %Core.import_ref.abd = import_ref Core//prelude/parts/int_literal, loc13_50, unloaded
-// CHECK:STDOUT:   %Core.import_ref.5e6: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/parts/int_literal, loc14_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
-// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.abd, %Core.import_ref.5e6), @Core.IntLiteral.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.037: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/parts/int_literal, loc14_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.abd, %Core.import_ref.037), @Core.IntLiteral.as.Negate.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -664,22 +664,22 @@ fn CallF() {
 // CHECK:STDOUT:     %.loc15_7.2: type = converted %.loc15_7.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
-// CHECK:STDOUT:     %impl.elem1: %.d3d = impl_witness_access constants.%Negate.impl_witness, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:     %impl.elem1: %.e9a = impl_witness_access constants.%Negate.impl_witness, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
 // CHECK:STDOUT:     %bound_method: <bound method> = bound_method %int_1, %impl.elem1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op.bound]
 // CHECK:STDOUT:     %Core.IntLiteral.as.Negate.impl.Op.call: init Core.IntLiteral = call %bound_method(%int_1) [concrete = constants.%int_-1]
 // CHECK:STDOUT:     %.loc15_16.1: Core.IntLiteral = value_of_initializer %Core.IntLiteral.as.Negate.impl.Op.call [concrete = constants.%int_-1]
 // CHECK:STDOUT:     %.loc15_16.2: Core.IntLiteral = converted %Core.IntLiteral.as.Negate.impl.Op.call, %.loc15_16.1 [concrete = constants.%int_-1]
-// CHECK:STDOUT:     %I.type: type = facet_type <@I, @I(constants.%int_-1)> [concrete = constants.%I.type.057]
-// CHECK:STDOUT:     %.Self: %I.type.057 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.e4b]
-// CHECK:STDOUT:     %.Self.ref: %I.type.057 = name_ref .Self, %.Self [symbolic_self = constants.%.Self.e4b]
-// CHECK:STDOUT:     %.loc15_24.1: %I.assoc_type.247 = specific_constant @V.%assoc0, @I(constants.%int_-1) [concrete = constants.%assoc0.350]
-// CHECK:STDOUT:     %V.ref: %I.assoc_type.247 = name_ref V, %.loc15_24.1 [concrete = constants.%assoc0.350]
+// CHECK:STDOUT:     %I.type: type = facet_type <@I, @I(constants.%int_-1)> [concrete = constants.%I.type.71e]
+// CHECK:STDOUT:     %.Self: %I.type.71e = bind_symbolic_name .Self [symbolic_self = constants.%.Self.435]
+// CHECK:STDOUT:     %.Self.ref: %I.type.71e = name_ref .Self, %.Self [symbolic_self = constants.%.Self.435]
+// CHECK:STDOUT:     %.loc15_24.1: %I.assoc_type.247 = specific_constant @V.%assoc0, @I(constants.%int_-1) [concrete = constants.%assoc0.fdf]
+// CHECK:STDOUT:     %V.ref: %I.assoc_type.247 = name_ref V, %.loc15_24.1 [concrete = constants.%assoc0.fdf]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc15_24.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: <error> = impl_witness_access constants.%I.lookup_impl_witness, element0 [concrete = <error>]
 // CHECK:STDOUT:     %.loc15_30: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc15_18: type = where_expr %.Self [concrete = <error>] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%I.type.057
+// CHECK:STDOUT:       requirement_base_facet_type constants.%I.type.71e
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, <error>
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
@@ -689,15 +689,15 @@ fn CallF() {
 // CHECK:STDOUT:   %N.loc4_13.1: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N.loc4_13.1 (constants.%N)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%N.loc4_13.1)> [symbolic = %I.type (constants.%I.type.8a1)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.8a1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.3a0)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%N.loc4_13.1)> [symbolic = %I.type (constants.%I.type.2ba)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.2ba) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dba)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%N.loc4_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.9df)]
-// CHECK:STDOUT:   %assoc0: @I.%I.assoc_type (%I.assoc_type.9df) = assoc_entity element0, %V [symbolic = %assoc0 (constants.%assoc0.293)]
+// CHECK:STDOUT:   %assoc0: @I.%I.assoc_type (%I.assoc_type.9df) = assoc_entity element0, %V [symbolic = %assoc0 (constants.%assoc0.de5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.8a1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.3a0)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.2ba) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dba)]
 // CHECK:STDOUT:     %V: @V.%array_type (%array_type) = assoc_const_decl @V [concrete] {
-// CHECK:STDOUT:       %assoc0: @I.%I.assoc_type (%I.assoc_type.9df) = assoc_entity element0, @I.%V [symbolic = @I.%assoc0 (constants.%assoc0.293)]
+// CHECK:STDOUT:       %assoc0: @I.%I.assoc_type (%I.assoc_type.9df) = assoc_entity element0, @I.%V [symbolic = @I.%assoc0 (constants.%assoc0.de5)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -708,11 +708,11 @@ fn CallF() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @V(@I.%N.loc4_13.2: Core.IntLiteral, @I.%Self.1: @I.%I.type (%I.type.8a1)) {
+// CHECK:STDOUT: generic assoc_const @V(@I.%N.loc4_13.2: Core.IntLiteral, @I.%Self.1: @I.%I.type (%I.type.2ba)) {
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N (constants.%N)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%N)> [symbolic = %I.type (constants.%I.type.8a1)]
-// CHECK:STDOUT:   %Self: @V.%I.type (%I.type.8a1) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.3a0)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.72b)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%N)> [symbolic = %I.type (constants.%I.type.2ba)]
+// CHECK:STDOUT:   %Self: @V.%I.type (%I.type.2ba) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.dba)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.174)]
 // CHECK:STDOUT:   %array_type: type = array_type %N, %Self.as_type [symbolic = %array_type (constants.%array_type)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %array_type [symbolic = %require_complete (constants.%require_complete)]
 // CHECK:STDOUT:
@@ -728,11 +728,11 @@ fn CallF() {
 // CHECK:STDOUT:   %N.loc4_13.1 => constants.%N
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%N, constants.%Self.3a0) {
+// CHECK:STDOUT: specific @V(constants.%N, constants.%Self.dba) {
 // CHECK:STDOUT:   %N => constants.%N
-// CHECK:STDOUT:   %I.type => constants.%I.type.8a1
-// CHECK:STDOUT:   %Self => constants.%Self.3a0
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.72b
+// CHECK:STDOUT:   %I.type => constants.%I.type.2ba
+// CHECK:STDOUT:   %Self => constants.%Self.dba
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.174
 // CHECK:STDOUT:   %array_type => constants.%array_type
 // CHECK:STDOUT:   %require_complete => constants.%require_complete
 // CHECK:STDOUT: }
@@ -741,15 +741,15 @@ fn CallF() {
 // CHECK:STDOUT:   %N.loc4_13.1 => constants.%int_-1
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.057
-// CHECK:STDOUT:   %Self.2 => constants.%Self.e2e
+// CHECK:STDOUT:   %I.type => constants.%I.type.71e
+// CHECK:STDOUT:   %Self.2 => constants.%Self.f9b
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.247
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.350
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.fdf
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @V(constants.%int_-1, constants.%I.facet) {
 // CHECK:STDOUT:   %N => constants.%int_-1
-// CHECK:STDOUT:   %I.type => constants.%I.type.057
+// CHECK:STDOUT:   %I.type => constants.%I.type.71e
 // CHECK:STDOUT:   %Self => constants.%I.facet
 // CHECK:STDOUT:   %Self.as_type => constants.%.Self.as_type
 // CHECK:STDOUT:   %array_type => <error>
@@ -760,26 +760,26 @@ fn CallF() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %require_complete.9b1: <witness> = require_complete_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %require_complete.75b: <witness> = require_complete_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
-// CHECK:STDOUT:   %assoc0.45f: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
+// CHECK:STDOUT:   %assoc0.f83: %I.assoc_type = assoc_entity element0, @I.%V [concrete]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %ImplicitAs.type.2a8: type = facet_type <@ImplicitAs, @ImplicitAs(%.Self.as_type)> [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %ImplicitAs.type.589: type = facet_type <@ImplicitAs, @ImplicitAs(%.Self.as_type)> [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %require_complete.d0c: <witness> = require_complete_type %.Self.as_type [symbolic_self]
+// CHECK:STDOUT:   %require_complete.a71: <witness> = require_complete_type %.Self.as_type [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: %.Self.as_type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %empty_struct and TODO> [concrete]
 // CHECK:STDOUT:   %T: %I_where.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.189: type = pattern_type %I_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.6a4: type = pattern_type %I_where.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %CallF.type: type = fn_type @CallF [concrete]
@@ -805,22 +805,22 @@ fn CallF() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.189 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.6a4 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc8_12.1: type = splice_block %.loc8_12.2 [concrete = constants.%I_where.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:       %.Self.2: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.2: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %.loc8_19.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:       %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:       %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:       %.Self.ref.loc8_43: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref.loc8_43: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %.Self.as_type.loc8_48: type = facet_access_type %.Self.ref.loc8_43 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc8_48: type = converted %.Self.ref.loc8_43, %.Self.as_type.loc8_48 [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%.Self.as_type)> [symbolic_self = constants.%ImplicitAs.type.2a8]
+// CHECK:STDOUT:       %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%.Self.as_type)> [symbolic_self = constants.%ImplicitAs.type.589]
 // CHECK:STDOUT:       %.loc8_19.2: type = converted %.loc8_19.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:       %.Self.ref.loc8_54: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:       %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:       %.Self.ref.loc8_54: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:       %V.ref: %I.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:       %.Self.as_type.loc8_54: type = facet_access_type %.Self.ref.loc8_54 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc8_54: type = converted %.Self.ref.loc8_54, %.Self.as_type.loc8_54 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem0: %.Self.as_type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
@@ -839,9 +839,9 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.b70) = assoc_const_decl @V [concrete] {
-// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.45f]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %V: @V.%Self.as_type (%Self.as_type.4af) = assoc_const_decl @V [concrete] {
+// CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%V [concrete = constants.%assoc0.f83]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -851,11 +851,11 @@ fn CallF() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic assoc_const @V(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.9b1)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.75b)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.b70);
+// CHECK:STDOUT:   assoc_const V:! @V.%Self.as_type (%Self.as_type.4af);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%T.loc8_6.2: %I_where.type) {
@@ -871,16 +871,16 @@ fn CallF() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.9b1
+// CHECK:STDOUT: specific @V(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.75b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @V(constants.%I.facet) {
 // CHECK:STDOUT:   %Self => constants.%I.facet
 // CHECK:STDOUT:   %Self.as_type => constants.%.Self.as_type
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d0c
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @F(constants.%T) {
diff --git a/toolchain/check/testdata/impl/compound.carbon b/toolchain/check/testdata/impl/compound.carbon
index 1eabcb4c197a..0783c65ae0ae 100644
--- a/toolchain/check/testdata/impl/compound.carbon
+++ b/toolchain/check/testdata/impl/compound.carbon
@@ -128,10 +128,10 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.96f: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.96f = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.07f: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
-// CHECK:STDOUT:   %Self: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.f40: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
+// CHECK:STDOUT:   %Self: %ImplicitAs.type.f40 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.a93: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %Dest [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert: %ImplicitAs.Convert.type = struct_value () [symbolic]
@@ -155,26 +155,26 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest.loc3_22.1: type = bind_symbolic_name Dest, 0 [symbolic = %Dest.loc3_22.1 (constants.%Dest)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest.loc3_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest.loc3_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest.loc3_22.1) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest.loc3_22.1) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc4_35.2: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %ImplicitAs.Convert.decl [symbolic = %assoc0.loc4_35.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %ImplicitAs.Convert.decl: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type) = fn_decl @ImplicitAs.Convert [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert)] {
-// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.a93) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.a93) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.fb9) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.fb9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @ImplicitAs.Convert.%pattern_type.loc4_28 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_28 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %Dest.ref: type = name_ref Dest, @ImplicitAs.%Dest.loc3_22.2 [symbolic = %Dest (constants.%Dest)]
 // CHECK:STDOUT:       %self.param: @ImplicitAs.Convert.%Self.as_type.loc4_20.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc4_20.1: type = splice_block %.loc4_20.3 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc4_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%Dest) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %.loc4_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%Dest) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:         %Self.as_type.loc4_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc4_20.3: type = converted %Self.ref, %Self.as_type.loc4_20.2 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -192,12 +192,12 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%Dest.loc3_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f)) {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%Dest.loc3_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40)) {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc4_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc4_14: type = pattern_type %Self.as_type.loc4_20.1 [symbolic = %pattern_type.loc4_14 (constants.%pattern_type.a93)]
+// CHECK:STDOUT:   %pattern_type.loc4_14: type = pattern_type %Self.as_type.loc4_20.1 [symbolic = %pattern_type.loc4_14 (constants.%pattern_type.fb9)]
 // CHECK:STDOUT:   %pattern_type.loc4_28: type = pattern_type %Dest [symbolic = %pattern_type.loc4_28 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @ImplicitAs.Convert.%Self.as_type.loc4_20.1 (%Self.as_type)) -> @ImplicitAs.Convert.%Dest (%Dest);
@@ -209,10 +209,10 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self) {
 // CHECK:STDOUT:   %Dest => constants.%Dest
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.07f
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.f40
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc4_20.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.loc4_14 => constants.%pattern_type.a93
+// CHECK:STDOUT:   %pattern_type.loc4_14 => constants.%pattern_type.fb9
 // CHECK:STDOUT:   %pattern_type.loc4_28 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -233,7 +233,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %NonInstance1.facet: %NonInstance1.type = facet_value %struct_type.a, (%NonInstance1.impl_witness) [concrete]
 // CHECK:STDOUT:   %NonInstanceCall1.type: type = fn_type @NonInstanceCall1 [concrete]
 // CHECK:STDOUT:   %NonInstanceCall1: %NonInstanceCall1.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.a2c: type = fn_type_with_self_type %NonInstance1.F1.type, %NonInstance1.facet [concrete]
+// CHECK:STDOUT:   %.b01: type = fn_type_with_self_type %NonInstance1.F1.type, %NonInstance1.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -290,7 +290,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %F1.ref: %NonInstance1.assoc_type = name_ref F1, @NonInstance1.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %NonInstance1.facet: %NonInstance1.type = facet_value constants.%struct_type.a, (constants.%NonInstance1.impl_witness) [concrete = constants.%NonInstance1.facet]
 // CHECK:STDOUT:   %.loc12_11: %NonInstance1.type = converted %struct_type.a, %NonInstance1.facet [concrete = constants.%NonInstance1.facet]
-// CHECK:STDOUT:   %impl.elem0: %.a2c = impl_witness_access constants.%NonInstance1.impl_witness, element0 [concrete = constants.%struct_type.a.as.NonInstance1.impl.F1]
+// CHECK:STDOUT:   %impl.elem0: %.b01 = impl_witness_access constants.%NonInstance1.impl_witness, element0 [concrete = constants.%struct_type.a.as.NonInstance1.impl.F1]
 // CHECK:STDOUT:   %struct_type.a.as.NonInstance1.impl.F1.call: init %empty_tuple.type = call %impl.elem0()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -303,7 +303,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %NonInstance2.type: type = facet_type <@NonInstance2> [concrete]
-// CHECK:STDOUT:   %Self.5a9: %NonInstance2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.163: %NonInstance2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NonInstance2.F2.type: type = fn_type @NonInstance2.F2 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %NonInstance2.F2: %NonInstance2.F2.type = struct_value () [concrete]
@@ -320,21 +320,21 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.d62: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
-// CHECK:STDOUT:   %Self.519: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.dc4: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
+// CHECK:STDOUT:   %Self.ff0: %ImplicitAs.type.dc4 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.275: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42e: %ImplicitAs.Convert.type.275 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %Dest [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.519 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f3e: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.ff0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.7ff: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %assoc0.9f5: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.c38: type = facet_type <@ImplicitAs, @ImplicitAs(%NonInstance2.type)> [concrete]
-// CHECK:STDOUT:   %Self.671: %ImplicitAs.type.c38 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.Convert.type.d1f: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%NonInstance2.type) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.Convert.079: %ImplicitAs.Convert.type.d1f = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type.f63: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%NonInstance2.type) [concrete]
-// CHECK:STDOUT:   %assoc0.ba9: %ImplicitAs.assoc_type.f63 = assoc_entity element0, imports.%Core.import_ref.1c7 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.f50: type = facet_type <@ImplicitAs, @ImplicitAs(%NonInstance2.type)> [concrete]
+// CHECK:STDOUT:   %Self.13a: %ImplicitAs.type.f50 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.Convert.type.a5a: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%NonInstance2.type) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.Convert.97b: %ImplicitAs.Convert.type.a5a = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type.740: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%NonInstance2.type) [concrete]
+// CHECK:STDOUT:   %assoc0.1a4: %ImplicitAs.assoc_type.740 = assoc_entity element0, imports.%Core.import_ref.1c7 [concrete]
 // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -345,11 +345,11 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//default, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc3_22, loaded [symbolic = @ImplicitAs.%Dest (constants.%Dest)]
-// CHECK:STDOUT:   %Core.import_ref.ff5 = import_ref Core//default, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.873 = import_ref Core//default, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Core.import_ref.492: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.ca0) = import_ref Core//default, loc4_35, loaded [symbolic = @ImplicitAs.%assoc0 (constants.%assoc0.dc0)]
 // CHECK:STDOUT:   %Core.Convert = import_ref Core//default, Convert, unloaded
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc3_22, loaded [symbolic = @ImplicitAs.%Dest (constants.%Dest)]
-// CHECK:STDOUT:   %Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = import_ref Core//default, inst27 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.519)]
+// CHECK:STDOUT:   %Core.import_ref.52f: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4) = import_ref Core//default, inst27 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %Core.import_ref.1c7: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = import_ref Core//default, loc4_35, loaded [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
 // CHECK:STDOUT:   %Core.import_ref.207 = import_ref Core//default, loc4_35, unloaded
 // CHECK:STDOUT: }
@@ -385,7 +385,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance2 {
-// CHECK:STDOUT:   %Self: %NonInstance2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.5a9]
+// CHECK:STDOUT:   %Self: %NonInstance2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.163]
 // CHECK:STDOUT:   %NonInstance2.F2.decl: %NonInstance2.F2.type = fn_decl @NonInstance2.F2 [concrete = constants.%NonInstance2.F2] {} {}
 // CHECK:STDOUT:   %assoc0: %NonInstance2.assoc_type = assoc_entity element0, %NonInstance2.F2.decl [concrete = constants.%assoc0.92e]
 // CHECK:STDOUT:
@@ -399,8 +399,8 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.dc4)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type.275)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.ca0)]
@@ -408,7 +408,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.ff5
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.873
 // CHECK:STDOUT:     .Convert = imports.%Core.import_ref.492
 // CHECK:STDOUT:     witness = (imports.%Core.Convert)
 // CHECK:STDOUT:   }
@@ -440,18 +440,18 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62)) [from "core.carbon"] {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.52f: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4)) [from "core.carbon"] {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.d62) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.dc4)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.dc4) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.f3e)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.7ff)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %Dest [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @NonInstance2.F2(constants.%Self.5a9) {}
+// CHECK:STDOUT: specific @NonInstance2.F2(constants.%Self.163) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @NonInstance2.F2(constants.%NonInstance2.facet) {}
 // CHECK:STDOUT:
@@ -459,12 +459,12 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest => constants.%Dest
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self.519) {
+// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self.ff0) {
 // CHECK:STDOUT:   %Dest => constants.%Dest
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.d62
-// CHECK:STDOUT:   %Self => constants.%Self.519
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.dc4
+// CHECK:STDOUT:   %Self => constants.%Self.ff0
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.f3e
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.7ff
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -472,19 +472,19 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest => constants.%NonInstance2.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.c38
-// CHECK:STDOUT:   %Self => constants.%Self.671
-// CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.d1f
-// CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.079
-// CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.f63
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.ba9
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.f50
+// CHECK:STDOUT:   %Self => constants.%Self.13a
+// CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.a5a
+// CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.97b
+// CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.740
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.1a4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_non-instance_indirect.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %NonInstance3.type: type = facet_type <@NonInstance3> [concrete]
-// CHECK:STDOUT:   %Self.dd1: %NonInstance3.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.1ac: %NonInstance3.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NonInstance3.F3.type: type = fn_type @NonInstance3.F3 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %NonInstance3.F3: %NonInstance3.F3.type = struct_value () [concrete]
@@ -502,21 +502,21 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.d62: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
-// CHECK:STDOUT:   %Self.519: %ImplicitAs.type.d62 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.dc4: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
+// CHECK:STDOUT:   %Self.ff0: %ImplicitAs.type.dc4 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.275: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42e: %ImplicitAs.Convert.type.275 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %Dest [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.519 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f3e: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.ff0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.7ff: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %assoc0.9f5: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.c69: type = facet_type <@ImplicitAs, @ImplicitAs(%NonInstance3.type)> [concrete]
-// CHECK:STDOUT:   %Self.754: %ImplicitAs.type.c69 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.Convert.type.0f1: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%NonInstance3.type) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.Convert.bb3: %ImplicitAs.Convert.type.0f1 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type.4e3: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%NonInstance3.type) [concrete]
-// CHECK:STDOUT:   %assoc0.d0b: %ImplicitAs.assoc_type.4e3 = assoc_entity element0, imports.%Core.import_ref.1c7 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.613: type = facet_type <@ImplicitAs, @ImplicitAs(%NonInstance3.type)> [concrete]
+// CHECK:STDOUT:   %Self.f3a: %ImplicitAs.type.613 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.Convert.type.e8d: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%NonInstance3.type) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.Convert.ff1: %ImplicitAs.Convert.type.e8d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type.763: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%NonInstance3.type) [concrete]
+// CHECK:STDOUT:   %assoc0.f63: %ImplicitAs.assoc_type.763 = assoc_entity element0, imports.%Core.import_ref.1c7 [concrete]
 // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -527,11 +527,11 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//default, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//default, loc3_22, loaded [symbolic = @ImplicitAs.%Dest (constants.%Dest)]
-// CHECK:STDOUT:   %Core.import_ref.ff5 = import_ref Core//default, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.873 = import_ref Core//default, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Core.import_ref.492: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.ca0) = import_ref Core//default, loc4_35, loaded [symbolic = @ImplicitAs.%assoc0 (constants.%assoc0.dc0)]
 // CHECK:STDOUT:   %Core.Convert = import_ref Core//default, Convert, unloaded
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//default, loc3_22, loaded [symbolic = @ImplicitAs.%Dest (constants.%Dest)]
-// CHECK:STDOUT:   %Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = import_ref Core//default, inst27 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.519)]
+// CHECK:STDOUT:   %Core.import_ref.52f: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4) = import_ref Core//default, inst27 [no loc], loaded [symbolic = @ImplicitAs.%Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %Core.import_ref.1c7: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = import_ref Core//default, loc4_35, loaded [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
 // CHECK:STDOUT:   %Core.import_ref.207 = import_ref Core//default, loc4_35, unloaded
 // CHECK:STDOUT: }
@@ -568,7 +568,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance3 {
-// CHECK:STDOUT:   %Self: %NonInstance3.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.dd1]
+// CHECK:STDOUT:   %Self: %NonInstance3.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1ac]
 // CHECK:STDOUT:   %NonInstance3.F3.decl: %NonInstance3.F3.type = fn_decl @NonInstance3.F3 [concrete = constants.%NonInstance3.F3] {} {}
 // CHECK:STDOUT:   %assoc0: %NonInstance3.assoc_type = assoc_entity element0, %NonInstance3.F3.decl [concrete = constants.%assoc0.2f5]
 // CHECK:STDOUT:
@@ -582,8 +582,8 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.dc4)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type.275)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type.275) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert.42e)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.ca0)]
@@ -591,7 +591,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.ff5
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.873
 // CHECK:STDOUT:     .Convert = imports.%Core.import_ref.492
 // CHECK:STDOUT:     witness = (imports.%Core.Convert)
 // CHECK:STDOUT:   }
@@ -624,18 +624,18 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.ce1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.d62)) [from "core.carbon"] {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.52f: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.dc4)) [from "core.carbon"] {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.d62)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.d62) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.519)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.dc4)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.dc4) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.ff0)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.f3e)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.7ff)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %Dest [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @NonInstance3.F3(constants.%Self.dd1) {}
+// CHECK:STDOUT: specific @NonInstance3.F3(constants.%Self.1ac) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @NonInstance3.F3(constants.%NonInstance3.facet) {}
 // CHECK:STDOUT:
@@ -643,12 +643,12 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest => constants.%Dest
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self.519) {
+// CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self.ff0) {
 // CHECK:STDOUT:   %Dest => constants.%Dest
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.d62
-// CHECK:STDOUT:   %Self => constants.%Self.519
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.dc4
+// CHECK:STDOUT:   %Self => constants.%Self.ff0
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.f3e
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.7ff
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -656,12 +656,12 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Dest => constants.%NonInstance3.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.c69
-// CHECK:STDOUT:   %Self => constants.%Self.754
-// CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.0f1
-// CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.bb3
-// CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.4e3
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.d0b
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.613
+// CHECK:STDOUT:   %Self => constants.%Self.f3a
+// CHECK:STDOUT:   %ImplicitAs.Convert.type => constants.%ImplicitAs.Convert.type.e8d
+// CHECK:STDOUT:   %ImplicitAs.Convert => constants.%ImplicitAs.Convert.ff1
+// CHECK:STDOUT:   %ImplicitAs.assoc_type => constants.%ImplicitAs.assoc_type.763
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.f63
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- instance_success.carbon
@@ -670,7 +670,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Instance1.type: type = facet_type <@Instance1> [concrete]
 // CHECK:STDOUT:   %Self: %Instance1.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.0f0: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.962: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Instance1.G1.type: type = fn_type @Instance1.G1 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Instance1.G1: %Instance1.G1.type = struct_value () [concrete]
@@ -684,7 +684,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Instance1.facet: %Instance1.type = facet_value %struct_type.d, (%Instance1.impl_witness) [concrete]
 // CHECK:STDOUT:   %InstanceCall.type: type = fn_type @InstanceCall [concrete]
 // CHECK:STDOUT:   %InstanceCall: %InstanceCall.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.d09: type = fn_type_with_self_type %Instance1.G1.type, %Instance1.facet [concrete]
+// CHECK:STDOUT:   %.f20: type = fn_type_with_self_type %Instance1.G1.type, %Instance1.facet [concrete]
 // CHECK:STDOUT:   %ptr: type = ptr_type %struct_type.d [concrete]
 // CHECK:STDOUT:   %pattern_type.8d6: type = pattern_type %ptr [concrete]
 // CHECK:STDOUT:   %InstanceCallIndirect.type: type = fn_type @InstanceCallIndirect [concrete]
@@ -738,8 +738,8 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: interface @Instance1 {
 // CHECK:STDOUT:   %Self: %Instance1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Instance1.G1.decl: %Instance1.G1.type = fn_decl @Instance1.G1 [concrete = constants.%Instance1.G1] {
-// CHECK:STDOUT:     %self.patt: @Instance1.G1.%pattern_type (%pattern_type.0f0) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Instance1.G1.%pattern_type (%pattern_type.0f0) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Instance1.G1.%pattern_type (%pattern_type.962) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Instance1.G1.%pattern_type (%pattern_type.962) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @Instance1.G1.%Self.as_type.loc4_15.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc4_15.1: type = splice_block %.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type)] {
@@ -775,7 +775,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: generic fn @Instance1.G1(@Instance1.%Self: %Instance1.type) {
 // CHECK:STDOUT:   %Self: %Instance1.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc4_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.0f0)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.962)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @Instance1.G1.%Self.as_type.loc4_15.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -790,7 +790,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %n.ref: %struct_type.d = name_ref n, %n
 // CHECK:STDOUT:   %Instance1.ref: type = name_ref Instance1, file.%Instance1.decl [concrete = constants.%Instance1.type]
 // CHECK:STDOUT:   %G1.ref: %Instance1.assoc_type = name_ref G1, @Instance1.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.d09 = impl_witness_access constants.%Instance1.impl_witness, element0 [concrete = constants.%struct_type.d.as.Instance1.impl.G1]
+// CHECK:STDOUT:   %impl.elem0: %.f20 = impl_witness_access constants.%Instance1.impl_witness, element0 [concrete = constants.%struct_type.d.as.Instance1.impl.G1]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %n.ref, %impl.elem0
 // CHECK:STDOUT:   %struct_type.d.as.Instance1.impl.G1.call: init %empty_tuple.type = call %bound_method(%n.ref)
 // CHECK:STDOUT:   return
@@ -802,7 +802,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Instance1.ref: type = name_ref Instance1, file.%Instance1.decl [concrete = constants.%Instance1.type]
 // CHECK:STDOUT:   %G1.ref: %Instance1.assoc_type = name_ref G1, @Instance1.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %.loc16_4.1: ref %struct_type.d = deref %p.ref
-// CHECK:STDOUT:   %impl.elem0: %.d09 = impl_witness_access constants.%Instance1.impl_witness, element0 [concrete = constants.%struct_type.d.as.Instance1.impl.G1]
+// CHECK:STDOUT:   %impl.elem0: %.f20 = impl_witness_access constants.%Instance1.impl_witness, element0 [concrete = constants.%struct_type.d.as.Instance1.impl.G1]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc16_4.1, %impl.elem0
 // CHECK:STDOUT:   %.loc16_4.2: ref %empty_tuple.type = struct_access %.loc16_4.1, element0
 // CHECK:STDOUT:   %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
@@ -816,7 +816,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: specific @Instance1.G1(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.0f0
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.962
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Instance1.G1(constants.%Instance1.facet) {
@@ -831,7 +831,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT:   %Instance2.type: type = facet_type <@Instance2> [concrete]
 // CHECK:STDOUT:   %Self: %Instance2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.8d7: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.0d9: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Instance2.G2.type: type = fn_type @Instance2.G2 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Instance2.G2: %Instance2.G2.type = struct_value () [concrete]
@@ -867,8 +867,8 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: interface @Instance2 {
 // CHECK:STDOUT:   %Self: %Instance2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Instance2.G2.decl: %Instance2.G2.type = fn_decl @Instance2.G2 [concrete = constants.%Instance2.G2] {
-// CHECK:STDOUT:     %self.patt: @Instance2.G2.%pattern_type (%pattern_type.8d7) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Instance2.G2.%pattern_type (%pattern_type.8d7) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Instance2.G2.%pattern_type (%pattern_type.0d9) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Instance2.G2.%pattern_type (%pattern_type.0d9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @Instance2.G2.%Self.as_type.loc4_15.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc4_15.1: type = splice_block %.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type)] {
@@ -904,7 +904,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: generic fn @Instance2.G2(@Instance2.%Self: %Instance2.type) {
 // CHECK:STDOUT:   %Self: %Instance2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc4_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.8d7)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.0d9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @Instance2.G2.%Self.as_type.loc4_15.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -927,7 +927,7 @@ fn InstanceCallFail() {
 // CHECK:STDOUT: specific @Instance2.G2(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8d7
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.0d9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Instance2.G2(constants.%Instance2.facet) {
diff --git a/toolchain/check/testdata/impl/extend_impl_generic.carbon b/toolchain/check/testdata/impl/extend_impl_generic.carbon
index df8287e85300..852db0fc1b87 100644
--- a/toolchain/check/testdata/impl/extend_impl_generic.carbon
+++ b/toolchain/check/testdata/impl/extend_impl_generic.carbon
@@ -60,8 +60,8 @@ class X(U:! type) {
 // CHECK:STDOUT:   %HasF.type.fe3: type = generic_interface_type @HasF [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %HasF.generic: %HasF.type.fe3 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.type.901: type = facet_type <@HasF, @HasF(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.322: %HasF.type.901 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %HasF.type.cc6: type = facet_type <@HasF, @HasF(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.759: %HasF.type.cc6 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %HasF.F.type.46c: type = fn_type @HasF.F, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %HasF.F.823: %HasF.F.type.46c = struct_value () [symbolic]
@@ -75,7 +75,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %Param.elem: type = unbound_element_type %Param, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2b9: <witness> = impl_witness @Param.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.11e: <witness> = impl_witness @Param.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.756: type = ptr_type %Param [concrete]
 // CHECK:STDOUT:   %pattern_type.fae: type = pattern_type %ptr.756 [concrete]
 // CHECK:STDOUT:   %Param.as.Destroy.impl.Op.type: type = fn_type @Param.as.Destroy.impl.Op [concrete]
@@ -83,8 +83,8 @@ class X(U:! type) {
 // CHECK:STDOUT:   %struct_type.x.ed6: type = struct_type {.x: %i32} [concrete]
 // CHECK:STDOUT:   %complete_type.1ec: <witness> = complete_type_witness %struct_type.x.ed6 [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %HasF.type.b18: type = facet_type <@HasF, @HasF(%Param)> [concrete]
-// CHECK:STDOUT:   %Self.a41: %HasF.type.b18 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %HasF.type.c85: type = facet_type <@HasF, @HasF(%Param)> [concrete]
+// CHECK:STDOUT:   %Self.6e6: %HasF.type.c85 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type.7f1: type = fn_type @HasF.F, @HasF(%Param) [concrete]
 // CHECK:STDOUT:   %HasF.F.eff: %HasF.F.type.7f1 = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.assoc_type.257: type = assoc_entity_type @HasF, @HasF(%Param) [concrete]
@@ -93,8 +93,8 @@ class X(U:! type) {
 // CHECK:STDOUT:   %pattern_type.b01: type = pattern_type %Param [concrete]
 // CHECK:STDOUT:   %C.as.HasF.impl.F.type: type = fn_type @C.as.HasF.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.HasF.impl.F: %C.as.HasF.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.facet: %HasF.type.b18 = facet_value %C, (%HasF.impl_witness) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %HasF.facet: %HasF.type.c85 = facet_value %C, (%HasF.impl_witness) [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -105,30 +105,30 @@ class X(U:! type) {
 // CHECK:STDOUT:   %struct_type.x.c96: type = struct_type {.x: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %Param.val: %Param = struct_value (%int_2.ef8) [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.22c: type = fn_type_with_self_type %HasF.F.type.7f1, %HasF.facet [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %.d6f: type = fn_type_with_self_type %HasF.F.type.7f1, %HasF.facet [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -142,8 +142,8 @@ class X(U:! type) {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -177,15 +177,15 @@ class X(U:! type) {
 // CHECK:STDOUT:   %T.loc4_16.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_16.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T.loc4_16.1)> [symbolic = %HasF.type (constants.%HasF.type.901)]
-// CHECK:STDOUT:   %Self.2: @HasF.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.322)]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T.loc4_16.1)> [symbolic = %HasF.type (constants.%HasF.type.cc6)]
+// CHECK:STDOUT:   %Self.2: @HasF.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.759)]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F, @HasF(%T.loc4_16.1) [symbolic = %HasF.F.type (constants.%HasF.F.type.46c)]
 // CHECK:STDOUT:   %HasF.F: @HasF.%HasF.F.type (%HasF.F.type.46c) = struct_value () [symbolic = %HasF.F (constants.%HasF.F.823)]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF, @HasF(%T.loc4_16.1) [symbolic = %HasF.assoc_type (constants.%HasF.assoc_type.dd8)]
 // CHECK:STDOUT:   %assoc0.loc5_14.2: @HasF.%HasF.assoc_type (%HasF.assoc_type.dd8) = assoc_entity element0, %HasF.F.decl [symbolic = %assoc0.loc5_14.2 (constants.%assoc0.d31)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.322)]
+// CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.759)]
 // CHECK:STDOUT:     %HasF.F.decl: @HasF.%HasF.F.type (%HasF.F.type.46c) = fn_decl @HasF.F [symbolic = @HasF.%HasF.F (constants.%HasF.F.823)] {
 // CHECK:STDOUT:       %return.patt: @HasF.F.%pattern_type (%pattern_type.7dcd0a.1) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @HasF.F.%pattern_type (%pattern_type.7dcd0a.1) = out_param_pattern %return.patt, call_param0 [concrete]
@@ -260,7 +260,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Param [concrete = constants.%Param]
 // CHECK:STDOUT:   impl_decl @Param.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Param.as.Destroy.impl.%Param.as.Destroy.impl.Op.decl), @Param.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2b9]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.11e]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.x.ed6 [concrete = constants.%complete_type.1ec]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -274,14 +274,14 @@ class X(U:! type) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:     %HasF.ref: %HasF.type.fe3 = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.generic]
 // CHECK:STDOUT:     %Param.ref: type = name_ref Param, file.%Param.decl [concrete = constants.%Param]
-// CHECK:STDOUT:     %HasF.type: type = facet_type <@HasF, @HasF(constants.%Param)> [concrete = constants.%HasF.type.b18]
+// CHECK:STDOUT:     %HasF.type: type = facet_type <@HasF, @HasF(constants.%Param)> [concrete = constants.%HasF.type.c85]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (@C.as.HasF.impl.%C.as.HasF.impl.F.decl), @C.as.HasF.impl [concrete]
 // CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table [concrete = constants.%HasF.impl_witness]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -293,7 +293,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   extend @C.as.HasF.impl.%HasF.type
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasF.F(@HasF.%T.loc4_16.2: type, @HasF.%Self.1: @HasF.%HasF.type (%HasF.type.901)) {
+// CHECK:STDOUT: generic fn @HasF.F(@HasF.%T.loc4_16.2: type, @HasF.%Self.1: @HasF.%HasF.type (%HasF.type.cc6)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T [symbolic = %pattern_type (constants.%pattern_type.7dcd0a.1)]
 // CHECK:STDOUT:
@@ -306,7 +306,7 @@ class X(U:! type) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc15_21.1: %struct_type.x.c96 = struct_literal (%int_2)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_21.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_21.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method]
@@ -329,7 +329,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %C.ref.loc21: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %.loc21_17: %HasF.assoc_type.257 = specific_constant @HasF.%assoc0.loc5_14.1, @HasF(constants.%Param) [concrete = constants.%assoc0.afb]
 // CHECK:STDOUT:   %F.ref.loc21: %HasF.assoc_type.257 = name_ref F, %.loc21_17 [concrete = constants.%assoc0.afb]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.22c = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.d6f = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %.loc21_20.1: ref %Param = temporary_storage
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call.loc21: init %Param = call %impl.elem0.loc21() to %.loc21_20.1
 // CHECK:STDOUT:   %.loc21_20.2: ref %Param = temporary %.loc21_20.1, %C.as.HasF.impl.F.call.loc21
@@ -349,7 +349,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %.loc22_17: %HasF.assoc_type.257 = specific_constant @HasF.%assoc0.loc5_14.1, @HasF(constants.%Param) [concrete = constants.%assoc0.afb]
 // CHECK:STDOUT:   %F.ref.loc22: %HasF.assoc_type.257 = name_ref F, %.loc22_17 [concrete = constants.%assoc0.afb]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.22c = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.d6f = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %.loc22_20.1: ref %Param = temporary_storage
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call.loc22: init %Param = call %impl.elem0.loc22() to %.loc22_20.1
 // CHECK:STDOUT:   %.loc22_20.2: ref %Param = temporary %.loc22_20.1, %C.as.HasF.impl.F.call.loc22
@@ -365,8 +365,8 @@ class X(U:! type) {
 // CHECK:STDOUT:   %Param.as.Destroy.impl.Op.bound.loc22: <bound method> = bound_method %.loc22_20.2, constants.%Param.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr.loc22_20: %ptr.756 = addr_of %.loc22_20.2
 // CHECK:STDOUT:   %Param.as.Destroy.impl.Op.call.loc22: init %empty_tuple.type = call %Param.as.Destroy.impl.Op.bound.loc22(%addr.loc22_20)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %b.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc22_3: %ptr.235 = addr_of %b.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc22_3)
@@ -380,7 +380,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %T.loc4_16.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%Self.322) {
+// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%Self.759) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dcd0a.1
 // CHECK:STDOUT: }
@@ -389,8 +389,8 @@ class X(U:! type) {
 // CHECK:STDOUT:   %T.loc4_16.1 => constants.%Param
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.b18
-// CHECK:STDOUT:   %Self.2 => constants.%Self.a41
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.c85
+// CHECK:STDOUT:   %Self.2 => constants.%Self.6e6
 // CHECK:STDOUT:   %HasF.F.type => constants.%HasF.F.type.7f1
 // CHECK:STDOUT:   %HasF.F => constants.%HasF.F.eff
 // CHECK:STDOUT:   %HasF.assoc_type => constants.%HasF.assoc_type.257
@@ -410,10 +410,10 @@ class X(U:! type) {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325e65.1: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209206.1: %I.type.325e65.1 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.928: type = facet_access_type %Self.209206.1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type.928 [symbolic]
+// CHECK:STDOUT:   %I.type.328ca8.1: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d86b8.1: %I.type.328ca8.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.ec9: type = facet_access_type %Self.0d86b8.1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type.ec9 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %I.F.type.2aef59.1: type = fn_type @I.F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2dd4.1: %I.F.type.2aef59.1 = struct_value () [symbolic]
@@ -423,19 +423,19 @@ class X(U:! type) {
 // CHECK:STDOUT:   %X.type: type = generic_class_type @X [concrete]
 // CHECK:STDOUT:   %X.generic: %X.type = struct_value () [concrete]
 // CHECK:STDOUT:   %X: type = class_type @X, @X(%U) [symbolic]
-// CHECK:STDOUT:   %I.type.325e65.2: type = facet_type <@I, @I(%U)> [symbolic]
-// CHECK:STDOUT:   %Self.209206.2: %I.type.325e65.2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328ca8.2: type = facet_type <@I, @I(%U)> [symbolic]
+// CHECK:STDOUT:   %Self.0d86b8.2: %I.type.328ca8.2 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2aef59.2: type = fn_type @I.F, @I(%U) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2dd4.2: %I.F.type.2aef59.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5078.2: type = assoc_entity_type @I, @I(%U) [symbolic]
 // CHECK:STDOUT:   %assoc0.8f0422.2: %I.assoc_type.1e5078.2 = assoc_entity element0, @I.%I.F.decl [symbolic]
-// CHECK:STDOUT:   %require_complete.cfe: <witness> = require_complete_type %I.type.325e65.2 [symbolic]
+// CHECK:STDOUT:   %require_complete.3e6: <witness> = require_complete_type %I.type.328ca8.2 [symbolic]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @X.%I.impl_witness_table, @X.as.I.impl(%U) [symbolic]
 // CHECK:STDOUT:   %pattern_type.830: type = pattern_type %X [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.2: type = pattern_type %U [symbolic]
 // CHECK:STDOUT:   %X.as.I.impl.F.type: type = fn_type @X.as.I.impl.F, @X.as.I.impl(%U) [symbolic]
 // CHECK:STDOUT:   %X.as.I.impl.F: %X.as.I.impl.F.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %I.facet: %I.type.325e65.2 = facet_value %X, (%I.impl_witness) [symbolic]
+// CHECK:STDOUT:   %I.facet: %I.type.328ca8.2 = facet_value %X, (%I.impl_witness) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @X.%Destroy.impl_witness_table, @X.as.Destroy.impl(%U) [symbolic]
@@ -483,29 +483,29 @@ class X(U:! type) {
 // CHECK:STDOUT:   %T.loc4_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc4_13.1)> [symbolic = %I.type (constants.%I.type.325e65.1)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325e65.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209206.1)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc4_13.1)> [symbolic = %I.type (constants.%I.type.328ca8.1)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328ca8.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d86b8.1)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T.loc4_13.1) [symbolic = %I.F.type (constants.%I.F.type.2aef59.1)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2aef59.1) = struct_value () [symbolic = %I.F (constants.%I.F.bb2dd4.1)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc4_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5078.1)]
 // CHECK:STDOUT:   %assoc0.loc5_25.2: @I.%I.assoc_type (%I.assoc_type.1e5078.1) = assoc_entity element0, %I.F.decl [symbolic = %assoc0.loc5_25.2 (constants.%assoc0.8f0422.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325e65.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209206.1)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328ca8.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d86b8.1)]
 // CHECK:STDOUT:     %I.F.decl: @I.%I.F.type (%I.F.type.2aef59.1) = fn_decl @I.F [symbolic = @I.%I.F (constants.%I.F.bb2dd4.1)] {
-// CHECK:STDOUT:       %self.patt: @I.F.%pattern_type.loc5_8 (%pattern_type.4be) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @I.F.%pattern_type.loc5_8 (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @I.F.%pattern_type.loc5_8 (%pattern_type.857) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @I.F.%pattern_type.loc5_8 (%pattern_type.857) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %t.patt: @I.F.%pattern_type.loc5_20 (%pattern_type.7dcd0a.1) = binding_pattern t [concrete]
 // CHECK:STDOUT:       %t.param_patt: @I.F.%pattern_type.loc5_20 (%pattern_type.7dcd0a.1) = value_param_pattern %t.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.928) = value_param call_param0
-// CHECK:STDOUT:       %.loc5_14.1: type = splice_block %.loc5_14.3 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.928)] {
-// CHECK:STDOUT:         %.loc5_14.2: @I.F.%I.type (%I.type.325e65.1) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self.209206.1)]
-// CHECK:STDOUT:         %Self.ref: @I.F.%I.type (%I.type.325e65.1) = name_ref Self, %.loc5_14.2 [symbolic = %Self (constants.%Self.209206.1)]
-// CHECK:STDOUT:         %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.928)]
-// CHECK:STDOUT:         %.loc5_14.3: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.928)]
+// CHECK:STDOUT:       %self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.ec9) = value_param call_param0
+// CHECK:STDOUT:       %.loc5_14.1: type = splice_block %.loc5_14.3 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.ec9)] {
+// CHECK:STDOUT:         %.loc5_14.2: @I.F.%I.type (%I.type.328ca8.1) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self.0d86b8.1)]
+// CHECK:STDOUT:         %Self.ref: @I.F.%I.type (%I.type.328ca8.1) = name_ref Self, %.loc5_14.2 [symbolic = %Self (constants.%Self.0d86b8.1)]
+// CHECK:STDOUT:         %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.ec9)]
+// CHECK:STDOUT:         %.loc5_14.3: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.ec9)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.928) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.ec9) = bind_name self, %self.param
 // CHECK:STDOUT:       %t.param: @I.F.%T (%T) = value_param call_param1
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @I.%T.loc4_13.2 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:       %t: @I.F.%T (%T) = bind_name t, %t.param
@@ -524,8 +524,8 @@ class X(U:! type) {
 // CHECK:STDOUT: generic impl @X.as.I.impl(@X.%U.loc8_9.2: type) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %X: type = class_type @X, @X(%U) [symbolic = %X (constants.%X)]
-// CHECK:STDOUT:   %I.type.loc9_21.1: type = facet_type <@I, @I(%U)> [symbolic = %I.type.loc9_21.1 (constants.%I.type.325e65.2)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc9_21.1 [symbolic = %require_complete (constants.%require_complete.cfe)]
+// CHECK:STDOUT:   %I.type.loc9_21.1: type = facet_type <@I, @I(%U)> [symbolic = %I.type.loc9_21.1 (constants.%I.type.328ca8.2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc9_21.1 [symbolic = %require_complete (constants.%require_complete.3e6)]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @X.%I.impl_witness_table, @X.as.I.impl(%U) [symbolic = %I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -590,19 +590,19 @@ class X(U:! type) {
 // CHECK:STDOUT:   %U.loc8_9.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc8_9.1 (constants.%U)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U.loc8_9.1)> [symbolic = %I.type (constants.%I.type.325e65.2)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type [symbolic = %require_complete (constants.%require_complete.cfe)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U.loc8_9.1)> [symbolic = %I.type (constants.%I.type.328ca8.2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type [symbolic = %require_complete (constants.%require_complete.3e6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
 // CHECK:STDOUT:     impl_decl @X.as.I.impl [concrete] {} {
 // CHECK:STDOUT:       %Self.ref: type = name_ref Self, constants.%X [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:       %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:       %U.ref: type = name_ref U, @X.%U.loc8_9.2 [symbolic = %U (constants.%U)]
-// CHECK:STDOUT:       %I.type.loc9_21.2: type = facet_type <@I, @I(constants.%U)> [symbolic = %I.type.loc9_21.1 (constants.%I.type.325e65.2)]
+// CHECK:STDOUT:       %I.type.loc9_21.2: type = facet_type <@I, @I(constants.%U)> [symbolic = %I.type.loc9_21.1 (constants.%I.type.328ca8.2)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %I.impl_witness_table = impl_witness_table (@X.as.I.impl.%X.as.I.impl.F.decl), @X.as.I.impl [concrete]
 // CHECK:STDOUT:     %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @X.as.I.impl(constants.%U) [symbolic = @X.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
-// CHECK:STDOUT:     %.loc9: type = specific_constant @X.as.I.impl.%I.type.loc9_21.2, @X.as.I.impl(constants.%U) [symbolic = %I.type (constants.%I.type.325e65.2)]
+// CHECK:STDOUT:     %.loc9: type = specific_constant @X.as.I.impl.%I.type.loc9_21.2, @X.as.I.impl(constants.%U) [symbolic = %I.type (constants.%I.type.328ca8.2)]
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%X [symbolic = @X.as.Destroy.impl.%X (constants.%X)]
 // CHECK:STDOUT:     impl_decl @X.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@X.as.Destroy.impl.%X.as.Destroy.impl.Op.decl), @X.as.Destroy.impl [concrete]
@@ -618,23 +618,23 @@ class X(U:! type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(@I.%T.loc4_13.2: type, @I.%Self.1: @I.%I.type (%I.type.325e65.1)) {
+// CHECK:STDOUT: generic fn @I.F(@I.%T.loc4_13.2: type, @I.%Self.1: @I.%I.type (%I.type.328ca8.1)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325e65.1)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325e65.1) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209206.1)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.928)]
-// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328ca8.1)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328ca8.1) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d86b8.1)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.ec9)]
+// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.857)]
 // CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %T [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.7dcd0a.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.928), %t.param: @I.F.%T (%T));
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.ec9), %t.param: @I.F.%T (%T));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @X.as.I.impl.F(@X.%U.loc8_9.2: type) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %X: type = class_type @X, @X(%U) [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %pattern_type.loc10_10: type = pattern_type %X [symbolic = %pattern_type.loc10_10 (constants.%pattern_type.830)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U)> [symbolic = %I.type (constants.%I.type.325e65.2)]
-// CHECK:STDOUT:   %require_complete.loc10_25: <witness> = require_complete_type %I.type [symbolic = %require_complete.loc10_25 (constants.%require_complete.cfe)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U)> [symbolic = %I.type (constants.%I.type.328ca8.2)]
+// CHECK:STDOUT:   %require_complete.loc10_25: <witness> = require_complete_type %I.type [symbolic = %require_complete.loc10_25 (constants.%require_complete.3e6)]
 // CHECK:STDOUT:   %pattern_type.loc10_22: type = pattern_type %U [symbolic = %pattern_type.loc10_22 (constants.%pattern_type.7dcd0a.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -662,12 +662,12 @@ class X(U:! type) {
 // CHECK:STDOUT:   %T.loc4_13.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.209206.1) {
+// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.0d86b8.1) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.1
-// CHECK:STDOUT:   %Self => constants.%Self.209206.1
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.928
-// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.4be
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.1
+// CHECK:STDOUT:   %Self => constants.%Self.0d86b8.1
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.ec9
+// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.857
 // CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.7dcd0a.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -675,16 +675,16 @@ class X(U:! type) {
 // CHECK:STDOUT:   %U.loc8_9.1 => constants.%U
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.cfe
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.3e6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%U) {
 // CHECK:STDOUT:   %T.loc4_13.1 => constants.%U
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %Self.2 => constants.%Self.209206.2
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %Self.2 => constants.%Self.0d86b8.2
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.2aef59.2
 // CHECK:STDOUT:   %I.F => constants.%I.F.bb2dd4.2
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.1e5078.2
@@ -694,8 +694,8 @@ class X(U:! type) {
 // CHECK:STDOUT: specific @X.as.I.impl(constants.%U) {
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %X => constants.%X
-// CHECK:STDOUT:   %I.type.loc9_21.1 => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.cfe
+// CHECK:STDOUT:   %I.type.loc9_21.1 => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.3e6
 // CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -707,14 +707,14 @@ class X(U:! type) {
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %pattern_type.loc10_10 => constants.%pattern_type.830
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %require_complete.loc10_25 => constants.%require_complete.cfe
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %require_complete.loc10_25 => constants.%require_complete.3e6
 // CHECK:STDOUT:   %pattern_type.loc10_22 => constants.%pattern_type.7dcd0a.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%U, constants.%I.facet) {
 // CHECK:STDOUT:   %T => constants.%U
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.2
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.2
 // CHECK:STDOUT:   %Self => constants.%I.facet
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%X
 // CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.830
diff --git a/toolchain/check/testdata/impl/fail_alias.carbon b/toolchain/check/testdata/impl/fail_alias.carbon
index 69cda92ef5b9..cd75c9e3ce31 100644
--- a/toolchain/check/testdata/impl/fail_alias.carbon
+++ b/toolchain/check/testdata/impl/fail_alias.carbon
@@ -53,13 +53,13 @@ impl AC as AI {}
 // CHECK:STDOUT:   %AI: type = bind_alias AI, %I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   %C.ref: type = name_ref C, %C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %AC: type = bind_alias AC, %C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.7704ae.1 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1bf8db.1 [concrete] {} {
 // CHECK:STDOUT:     %AC.ref: type = name_ref AC, file.%AC [concrete = constants.%C]
 // CHECK:STDOUT:     %AI.ref: type = name_ref AI, file.%AI [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl.7704ae.1 [concrete]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl.1bf8db.1 [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.7704ae.2 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1bf8db.2 [concrete] {} {
 // CHECK:STDOUT:     %AC.ref: type = name_ref AC, file.%AC [concrete = constants.%C]
 // CHECK:STDOUT:     %AI.ref: type = name_ref AI, file.%AI [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
@@ -73,12 +73,12 @@ impl AC as AI {}
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl.7704ae.1: %AC.ref as %AI.ref {
+// CHECK:STDOUT: impl @C.as.I.impl.1bf8db.1: %AC.ref as %AI.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl.7704ae.2: %AC.ref as %AI.ref {
+// CHECK:STDOUT: impl @C.as.I.impl.1bf8db.2: %AC.ref as %AI.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = <error>
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/fail_call_invalid.carbon b/toolchain/check/testdata/impl/fail_call_invalid.carbon
index a464e231c4f2..79a7a947c3ad 100644
--- a/toolchain/check/testdata/impl/fail_call_invalid.carbon
+++ b/toolchain/check/testdata/impl/fail_call_invalid.carbon
@@ -32,9 +32,9 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Simple.type: type = facet_type <@Simple> [concrete]
-// CHECK:STDOUT:   %Self.3c9: %Simple.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.716: type = facet_access_type %Self.3c9 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f88: type = pattern_type %Self.as_type.716 [symbolic]
+// CHECK:STDOUT:   %Self.a09: %Simple.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.88d: type = facet_access_type %Self.a09 [symbolic]
+// CHECK:STDOUT:   %pattern_type.9bd: type = pattern_type %Self.as_type.88d [symbolic]
 // CHECK:STDOUT:   %Simple.G.type: type = fn_type @Simple.G [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Simple.G: %Simple.G.type = struct_value () [concrete]
@@ -45,15 +45,15 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %Simple.impl_witness: <witness> = impl_witness file.%Simple.impl_witness_table [concrete]
-// CHECK:STDOUT:   %i32.as.Simple.impl.G.type.c9825d.1: type = fn_type @i32.as.Simple.impl.G.loc24_27.1 [concrete]
-// CHECK:STDOUT:   %i32.as.Simple.impl.G.e73e91.1: %i32.as.Simple.impl.G.type.c9825d.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %i32.as.Simple.impl.G.type.a38cf5.1: type = fn_type @i32.as.Simple.impl.G.loc24_27.1 [concrete]
+// CHECK:STDOUT:   %i32.as.Simple.impl.G.faa6b0.1: %i32.as.Simple.impl.G.type.a38cf5.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Simple.facet: %Simple.type = facet_value %i32, (%Simple.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %i32.as.Simple.impl.G.type.c9825d.2: type = fn_type @i32.as.Simple.impl.G.loc24_27.2 [concrete]
-// CHECK:STDOUT:   %i32.as.Simple.impl.G.e73e91.2: %i32.as.Simple.impl.G.type.c9825d.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %i32.as.Simple.impl.G.type.a38cf5.2: type = fn_type @i32.as.Simple.impl.G.loc24_27.2 [concrete]
+// CHECK:STDOUT:   %i32.as.Simple.impl.G.faa6b0.2: %i32.as.Simple.impl.G.type.a38cf5.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %InstanceCall.type: type = fn_type @InstanceCall [concrete]
 // CHECK:STDOUT:   %InstanceCall: %InstanceCall.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.8e6: type = fn_type_with_self_type %Simple.G.type, %Simple.facet [concrete]
+// CHECK:STDOUT:   %.2e5: type = fn_type_with_self_type %Simple.G.type, %Simple.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -95,18 +95,18 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Simple {
-// CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c9]
+// CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a09]
 // CHECK:STDOUT:   %Simple.G.decl: %Simple.G.type = fn_decl @Simple.G [concrete = constants.%Simple.G] {
-// CHECK:STDOUT:     %self.patt: @Simple.G.%pattern_type (%pattern_type.f88) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Simple.G.%pattern_type (%pattern_type.f88) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Simple.G.%pattern_type (%pattern_type.9bd) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Simple.G.%pattern_type (%pattern_type.9bd) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @Simple.G.%Self.as_type.loc16_14.1 (%Self.as_type.716) = value_param call_param0
-// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.716)] {
-// CHECK:STDOUT:       %Self.ref: %Simple.type = name_ref Self, @Simple.%Self [symbolic = %Self (constants.%Self.3c9)]
-// CHECK:STDOUT:       %Self.as_type.loc16_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.716)]
-// CHECK:STDOUT:       %.loc16_14.2: type = converted %Self.ref, %Self.as_type.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.716)]
+// CHECK:STDOUT:     %self.param: @Simple.G.%Self.as_type.loc16_14.1 (%Self.as_type.88d) = value_param call_param0
+// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.88d)] {
+// CHECK:STDOUT:       %Self.ref: %Simple.type = name_ref Self, @Simple.%Self [symbolic = %Self (constants.%Self.a09)]
+// CHECK:STDOUT:       %Self.as_type.loc16_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.88d)]
+// CHECK:STDOUT:       %.loc16_14.2: type = converted %Self.ref, %Self.as_type.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.88d)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @Simple.G.%Self.as_type.loc16_14.1 (%Self.as_type.716) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @Simple.G.%Self.as_type.loc16_14.1 (%Self.as_type.88d) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %Simple.assoc_type = assoc_entity element0, %Simple.G.decl [concrete = constants.%assoc0.db2]
 // CHECK:STDOUT:
@@ -117,7 +117,7 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @i32.as.Simple.impl: %i32 as %Simple.ref {
-// CHECK:STDOUT:   %i32.as.Simple.impl.G.decl.loc24_27.1: %i32.as.Simple.impl.G.type.c9825d.1 = fn_decl @i32.as.Simple.impl.G.loc24_27.1 [concrete = constants.%i32.as.Simple.impl.G.e73e91.1] {
+// CHECK:STDOUT:   %i32.as.Simple.impl.G.decl.loc24_27.1: %i32.as.Simple.impl.G.type.a38cf5.1 = fn_decl @i32.as.Simple.impl.G.loc24_27.1 [concrete = constants.%i32.as.Simple.impl.G.faa6b0.1] {
 // CHECK:STDOUT:     %self.patt: <error> = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: <error> = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -125,7 +125,7 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT:     %Undeclared.ref: <error> = name_ref Undeclared, <error> [concrete = <error>]
 // CHECK:STDOUT:     %self: <error> = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %i32.as.Simple.impl.G.decl.loc24_27.2: %i32.as.Simple.impl.G.type.c9825d.2 = fn_decl @i32.as.Simple.impl.G.loc24_27.2 [concrete = constants.%i32.as.Simple.impl.G.e73e91.2] {
+// CHECK:STDOUT:   %i32.as.Simple.impl.G.decl.loc24_27.2: %i32.as.Simple.impl.G.type.a38cf5.2 = fn_decl @i32.as.Simple.impl.G.loc24_27.2 [concrete = constants.%i32.as.Simple.impl.G.faa6b0.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.7ce = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.7ce = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -140,18 +140,18 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Simple.G(@Simple.%Self: %Simple.type) {
-// CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.3c9)]
-// CHECK:STDOUT:   %Self.as_type.loc16_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.716)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_14.1 [symbolic = %pattern_type (constants.%pattern_type.f88)]
+// CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.a09)]
+// CHECK:STDOUT:   %Self.as_type.loc16_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.88d)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_14.1 [symbolic = %pattern_type (constants.%pattern_type.9bd)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Simple.G.%Self.as_type.loc16_14.1 (%Self.as_type.716));
+// CHECK:STDOUT:   fn(%self.param: @Simple.G.%Self.as_type.loc16_14.1 (%Self.as_type.88d));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @i32.as.Simple.impl.G.loc24_27.1(%self.param: <error>);
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @i32.as.Simple.impl.G.loc24_27.2(%self.param: %i32) [thunk @i32.as.Simple.impl.%i32.as.Simple.impl.G.decl.loc24_27.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %G.ref: %i32.as.Simple.impl.G.type.c9825d.1 = name_ref G, @i32.as.Simple.impl.%i32.as.Simple.impl.G.decl.loc24_27.1 [concrete = constants.%i32.as.Simple.impl.G.e73e91.1]
+// CHECK:STDOUT:   %G.ref: %i32.as.Simple.impl.G.type.a38cf5.1 = name_ref G, @i32.as.Simple.impl.%i32.as.Simple.impl.G.decl.loc24_27.1 [concrete = constants.%i32.as.Simple.impl.G.faa6b0.1]
 // CHECK:STDOUT:   %self.ref: %i32 = name_ref self, %self.param
 // CHECK:STDOUT:   %i32.as.Simple.impl.G.bound: <bound method> = bound_method %self.ref, %G.ref
 // CHECK:STDOUT:   %i32.as.Simple.impl.G.call: init %empty_tuple.type = call %i32.as.Simple.impl.G.bound(<error>)
@@ -163,18 +163,18 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT:   %n.ref: %i32 = name_ref n, %n
 // CHECK:STDOUT:   %Simple.ref: type = name_ref Simple, file.%Simple.decl [concrete = constants.%Simple.type]
 // CHECK:STDOUT:   %G.ref.loc28_12: %Simple.assoc_type = name_ref G, @Simple.%assoc0 [concrete = constants.%assoc0.db2]
-// CHECK:STDOUT:   %impl.elem0: %.8e6 = impl_witness_access constants.%Simple.impl_witness, element0 [concrete = constants.%i32.as.Simple.impl.G.e73e91.2]
+// CHECK:STDOUT:   %impl.elem0: %.2e5 = impl_witness_access constants.%Simple.impl_witness, element0 [concrete = constants.%i32.as.Simple.impl.G.faa6b0.2]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %n.ref, %impl.elem0
-// CHECK:STDOUT:   %G.ref.loc28_16: %i32.as.Simple.impl.G.type.c9825d.1 = name_ref G, @i32.as.Simple.impl.%i32.as.Simple.impl.G.decl.loc24_27.1 [concrete = constants.%i32.as.Simple.impl.G.e73e91.1]
+// CHECK:STDOUT:   %G.ref.loc28_16: %i32.as.Simple.impl.G.type.a38cf5.1 = name_ref G, @i32.as.Simple.impl.%i32.as.Simple.impl.G.decl.loc24_27.1 [concrete = constants.%i32.as.Simple.impl.G.faa6b0.1]
 // CHECK:STDOUT:   %i32.as.Simple.impl.G.bound: <bound method> = bound_method %n.ref, %G.ref.loc28_16
 // CHECK:STDOUT:   %i32.as.Simple.impl.G.call: init %empty_tuple.type = call %i32.as.Simple.impl.G.bound(<error>)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Simple.G(constants.%Self.3c9) {
-// CHECK:STDOUT:   %Self => constants.%Self.3c9
-// CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%Self.as_type.716
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f88
+// CHECK:STDOUT: specific @Simple.G(constants.%Self.a09) {
+// CHECK:STDOUT:   %Self => constants.%Self.a09
+// CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%Self.as_type.88d
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9bd
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Simple.G(constants.%Simple.facet) {
diff --git a/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon b/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon
index cc4cc2c7e10b..59164726a8f3 100644
--- a/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon
+++ b/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon
@@ -34,15 +34,15 @@ class C {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %GenericInterface.type.c92: type = generic_interface_type @GenericInterface [concrete]
 // CHECK:STDOUT:   %GenericInterface.generic: %GenericInterface.type.c92 = struct_value () [concrete]
-// CHECK:STDOUT:   %GenericInterface.type.3fe: type = facet_type <@GenericInterface, @GenericInterface(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %GenericInterface.type.3fe = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %GenericInterface.type.073: type = facet_type <@GenericInterface, @GenericInterface(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %GenericInterface.type.073 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %GenericInterface.F.type: type = fn_type @GenericInterface.F, @GenericInterface(%T) [symbolic]
 // CHECK:STDOUT:   %GenericInterface.F: %GenericInterface.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %GenericInterface.assoc_type: type = assoc_entity_type @GenericInterface, @GenericInterface(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0: %GenericInterface.assoc_type = assoc_entity element0, @GenericInterface.%GenericInterface.F.decl [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %require_complete.70f: <witness> = require_complete_type %GenericInterface.type.3fe [symbolic]
+// CHECK:STDOUT:   %require_complete.7b3: <witness> = require_complete_type %GenericInterface.type.073 [symbolic]
 // CHECK:STDOUT:   %GenericInterface.impl_witness: <witness> = impl_witness @C.%GenericInterface.impl_witness_table, @C.as.GenericInterface.impl(%T) [symbolic]
 // CHECK:STDOUT:   %C.as.GenericInterface.impl.F.type: type = fn_type @C.as.GenericInterface.impl.F, @C.as.GenericInterface.impl(%T) [symbolic]
 // CHECK:STDOUT:   %C.as.GenericInterface.impl.F: %C.as.GenericInterface.impl.F.type = struct_value () [symbolic]
@@ -69,15 +69,15 @@ class C {
 // CHECK:STDOUT:   %T.loc15_28.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_28.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericInterface.type: type = facet_type <@GenericInterface, @GenericInterface(%T.loc15_28.1)> [symbolic = %GenericInterface.type (constants.%GenericInterface.type.3fe)]
-// CHECK:STDOUT:   %Self.2: @GenericInterface.%GenericInterface.type (%GenericInterface.type.3fe) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %GenericInterface.type: type = facet_type <@GenericInterface, @GenericInterface(%T.loc15_28.1)> [symbolic = %GenericInterface.type (constants.%GenericInterface.type.073)]
+// CHECK:STDOUT:   %Self.2: @GenericInterface.%GenericInterface.type (%GenericInterface.type.073) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %GenericInterface.F.type: type = fn_type @GenericInterface.F, @GenericInterface(%T.loc15_28.1) [symbolic = %GenericInterface.F.type (constants.%GenericInterface.F.type)]
 // CHECK:STDOUT:   %GenericInterface.F: @GenericInterface.%GenericInterface.F.type (%GenericInterface.F.type) = struct_value () [symbolic = %GenericInterface.F (constants.%GenericInterface.F)]
 // CHECK:STDOUT:   %GenericInterface.assoc_type: type = assoc_entity_type @GenericInterface, @GenericInterface(%T.loc15_28.1) [symbolic = %GenericInterface.assoc_type (constants.%GenericInterface.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc16_13.2: @GenericInterface.%GenericInterface.assoc_type (%GenericInterface.assoc_type) = assoc_entity element0, %GenericInterface.F.decl [symbolic = %assoc0.loc16_13.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.3fe) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.073) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %GenericInterface.F.decl: @GenericInterface.%GenericInterface.F.type (%GenericInterface.F.type) = fn_decl @GenericInterface.F [symbolic = @GenericInterface.%GenericInterface.F (constants.%GenericInterface.F)] {
 // CHECK:STDOUT:       %x.patt: @GenericInterface.F.%pattern_type (%pattern_type.7dc) = binding_pattern x [concrete]
 // CHECK:STDOUT:       %x.param_patt: @GenericInterface.F.%pattern_type (%pattern_type.7dc) = value_param_pattern %x.patt, call_param0 [concrete]
@@ -98,8 +98,8 @@ class C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.GenericInterface.impl(%T.loc24_23.2: type) {
 // CHECK:STDOUT:   %T.loc24_23.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc24_23.1 (constants.%T)]
-// CHECK:STDOUT:   %GenericInterface.type.loc24_54.1: type = facet_type <@GenericInterface, @GenericInterface(%T.loc24_23.1)> [symbolic = %GenericInterface.type.loc24_54.1 (constants.%GenericInterface.type.3fe)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericInterface.type.loc24_54.1 [symbolic = %require_complete (constants.%require_complete.70f)]
+// CHECK:STDOUT:   %GenericInterface.type.loc24_54.1: type = facet_type <@GenericInterface, @GenericInterface(%T.loc24_23.1)> [symbolic = %GenericInterface.type.loc24_54.1 (constants.%GenericInterface.type.073)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %GenericInterface.type.loc24_54.1 [symbolic = %require_complete (constants.%require_complete.7b3)]
 // CHECK:STDOUT:   %GenericInterface.impl_witness: <witness> = impl_witness @C.%GenericInterface.impl_witness_table, @C.as.GenericInterface.impl(%T.loc24_23.1) [symbolic = %GenericInterface.impl_witness (constants.%GenericInterface.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -130,13 +130,13 @@ class C {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:     %GenericInterface.ref: %GenericInterface.type.c92 = name_ref GenericInterface, file.%GenericInterface.decl [concrete = constants.%GenericInterface.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc24_23.2 [symbolic = %T.loc24_23.1 (constants.%T)]
-// CHECK:STDOUT:     %GenericInterface.type.loc24_54.2: type = facet_type <@GenericInterface, @GenericInterface(constants.%T)> [symbolic = %GenericInterface.type.loc24_54.1 (constants.%GenericInterface.type.3fe)]
+// CHECK:STDOUT:     %GenericInterface.type.loc24_54.2: type = facet_type <@GenericInterface, @GenericInterface(constants.%T)> [symbolic = %GenericInterface.type.loc24_54.1 (constants.%GenericInterface.type.073)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc24_23.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc24_23.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %GenericInterface.impl_witness_table = impl_witness_table (<error>), @C.as.GenericInterface.impl [concrete]
 // CHECK:STDOUT:   %GenericInterface.impl_witness: <witness> = impl_witness %GenericInterface.impl_witness_table, @C.as.GenericInterface.impl(constants.%T) [symbolic = @C.as.GenericInterface.impl.%GenericInterface.impl_witness (constants.%GenericInterface.impl_witness)]
-// CHECK:STDOUT:   %.loc24: type = specific_constant @C.as.GenericInterface.impl.%GenericInterface.type.loc24_54.2, @C.as.GenericInterface.impl(constants.%T) [symbolic = constants.%GenericInterface.type.3fe]
+// CHECK:STDOUT:   %.loc24: type = specific_constant @C.as.GenericInterface.impl.%GenericInterface.type.loc24_54.2, @C.as.GenericInterface.impl(constants.%T) [symbolic = constants.%GenericInterface.type.073]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -146,7 +146,7 @@ class C {
 // CHECK:STDOUT:   has_error
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @GenericInterface.F(@GenericInterface.%T.loc15_28.2: type, @GenericInterface.%Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.3fe)) {
+// CHECK:STDOUT: generic fn @GenericInterface.F(@GenericInterface.%T.loc15_28.2: type, @GenericInterface.%Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.073)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T [symbolic = %pattern_type (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
@@ -170,7 +170,7 @@ class C {
 // CHECK:STDOUT:   %T.loc15_28.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericInterface.type => constants.%GenericInterface.type.3fe
+// CHECK:STDOUT:   %GenericInterface.type => constants.%GenericInterface.type.073
 // CHECK:STDOUT:   %Self.2 => constants.%Self
 // CHECK:STDOUT:   %GenericInterface.F.type => constants.%GenericInterface.F.type
 // CHECK:STDOUT:   %GenericInterface.F => constants.%GenericInterface.F
@@ -185,8 +185,8 @@ class C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.GenericInterface.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc24_23.1 => constants.%T
-// CHECK:STDOUT:   %GenericInterface.type.loc24_54.1 => constants.%GenericInterface.type.3fe
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.70f
+// CHECK:STDOUT:   %GenericInterface.type.loc24_54.1 => constants.%GenericInterface.type.073
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.7b3
 // CHECK:STDOUT:   %GenericInterface.impl_witness => constants.%GenericInterface.impl_witness
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
diff --git a/toolchain/check/testdata/impl/fail_extend_impl_scope.carbon b/toolchain/check/testdata/impl/fail_extend_impl_scope.carbon
index 7aa19ff37ea6..a675ae5ed21e 100644
--- a/toolchain/check/testdata/impl/fail_extend_impl_scope.carbon
+++ b/toolchain/check/testdata/impl/fail_extend_impl_scope.carbon
@@ -167,13 +167,13 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
-// CHECK:STDOUT:   %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9ba: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Z.Zero.type: type = fn_type @Z.Zero [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Z.Zero: %Z.Zero.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z [concrete]
 // CHECK:STDOUT:   %assoc0.534: %Z.assoc_type = assoc_entity element0, @Z.%Z.Zero.decl [concrete]
-// CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self.6e6) [symbolic]
+// CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self.9ba) [symbolic]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero: %<error>.as.Z.impl.Zero.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Point: type = class_type @Point [concrete]
 // CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness @Point.%Z.impl_witness_table [concrete]
@@ -182,7 +182,7 @@ fn F() {
 // CHECK:STDOUT:   %Z.facet: %Z.type = facet_value %Point, (%Z.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e19: <witness> = impl_witness @Point.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9a7: <witness> = impl_witness @Point.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.536: type = ptr_type %Point [concrete]
 // CHECK:STDOUT:   %pattern_type.bbc: type = pattern_type %ptr.536 [concrete]
 // CHECK:STDOUT:   %Point.as.Destroy.impl.Op.type: type = fn_type @Point.as.Destroy.impl.Op [concrete]
@@ -192,7 +192,7 @@ fn F() {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Point.val: %Point = struct_value () [concrete]
-// CHECK:STDOUT:   %.766: type = fn_type_with_self_type %Z.Zero.type, %Z.facet [concrete]
+// CHECK:STDOUT:   %.4df: type = fn_type_with_self_type %Z.Zero.type, %Z.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -218,7 +218,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9ba]
 // CHECK:STDOUT:   %Z.Zero.decl: %Z.Zero.type = fn_decl @Z.Zero [concrete = constants.%Z.Zero] {} {}
 // CHECK:STDOUT:   %assoc0: %Z.assoc_type = assoc_entity element0, %Z.Zero.decl [concrete = constants.%assoc0.534]
 // CHECK:STDOUT:   impl_decl @<error>.as.Z.impl [concrete] {} {
@@ -234,7 +234,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @<error>.as.Z.impl(@Z.%Self: %Z.type) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.6e6)]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.9ba)]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self) [symbolic = %<error>.as.Z.impl.Zero.type (constants.%<error>.as.Z.impl.Zero.type)]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero: @<error>.as.Z.impl.%<error>.as.Z.impl.Zero.type (%<error>.as.Z.impl.Zero.type) = struct_value () [symbolic = %<error>.as.Z.impl.Zero (constants.%<error>.as.Z.impl.Zero)]
 // CHECK:STDOUT:
@@ -281,7 +281,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Point [concrete = constants.%Point]
 // CHECK:STDOUT:   impl_decl @Point.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Point.as.Destroy.impl.%Point.as.Destroy.impl.Op.decl), @Point.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e19]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9a7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -321,7 +321,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc25_5.4: ref %Point = temporary %.loc25_5.2, %.loc25_5.3
 // CHECK:STDOUT:   %.loc25_7: ref %Point = converted %.loc25_5.1, %.loc25_5.4
 // CHECK:STDOUT:   %Zero.ref: %Z.assoc_type = name_ref Zero, @Z.%assoc0 [concrete = constants.%assoc0.534]
-// CHECK:STDOUT:   %impl.elem0: %.766 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%Point.as.Z.impl.Zero]
+// CHECK:STDOUT:   %impl.elem0: %.4df = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%Point.as.Z.impl.Zero]
 // CHECK:STDOUT:   %Point.as.Z.impl.Zero.call: init %empty_tuple.type = call %impl.elem0()
 // CHECK:STDOUT:   %Point.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc25_5.4, constants.%Point.as.Destroy.impl.Op
 // CHECK:STDOUT:   %addr: %ptr.536 = addr_of %.loc25_5.4
@@ -329,16 +329,16 @@ fn F() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z.Zero(constants.%Self.6e6) {}
+// CHECK:STDOUT: specific @Z.Zero(constants.%Self.9ba) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @<error>.as.Z.impl(constants.%Self.6e6) {
+// CHECK:STDOUT: specific @<error>.as.Z.impl(constants.%Self.9ba) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self => constants.%Self.6e6
+// CHECK:STDOUT:   %Self => constants.%Self.9ba
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type => constants.%<error>.as.Z.impl.Zero.type
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero => constants.%<error>.as.Z.impl.Zero
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @<error>.as.Z.impl.Zero(constants.%Self.6e6) {}
+// CHECK:STDOUT: specific @<error>.as.Z.impl.Zero(constants.%Self.9ba) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z.Zero(constants.%Z.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/fail_extend_impl_type_as.carbon b/toolchain/check/testdata/impl/fail_extend_impl_type_as.carbon
index 703d5b2c6f7a..0122e937b002 100644
--- a/toolchain/check/testdata/impl/fail_extend_impl_type_as.carbon
+++ b/toolchain/check/testdata/impl/fail_extend_impl_type_as.carbon
@@ -52,16 +52,16 @@ class E {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %I.impl_witness.bf7: <witness> = impl_witness @C.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.467: <witness> = impl_witness @C.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -69,15 +69,15 @@ class E {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %I.impl_witness.fa5: <witness> = impl_witness @D.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.cdf: <witness> = impl_witness @D.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op: %D.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %E: type = class_type @E [concrete]
-// CHECK:STDOUT:   %I.impl_witness.7f3: <witness> = impl_witness @E.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c1f: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.497: <witness> = impl_witness @E.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6cf: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.742: type = ptr_type %E [concrete]
 // CHECK:STDOUT:   %pattern_type.88c: type = pattern_type %ptr.742 [concrete]
 // CHECK:STDOUT:   %E.as.Destroy.impl.Op.type: type = fn_type @E.as.Destroy.impl.Op [concrete]
@@ -111,7 +111,7 @@ class E {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -185,11 +185,11 @@ class E {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @i32.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.bf7]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.467]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -205,11 +205,11 @@ class E {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @D.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.fa5]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.cdf]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -226,11 +226,11 @@ class E {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @E.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.7f3]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.497]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%E [concrete = constants.%E]
 // CHECK:STDOUT:   impl_decl @E.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@E.as.Destroy.impl.%E.as.Destroy.impl.Op.decl), @E.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c1f]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6cf]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/fail_impl_as_scope.carbon b/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
index ea94379bd7a2..d975ba13c70c 100644
--- a/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
+++ b/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
@@ -223,22 +223,22 @@ class X {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
-// CHECK:STDOUT:   %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9ba: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Z.Zero.type: type = fn_type @Z.Zero [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Z.Zero: %Z.Zero.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z [concrete]
 // CHECK:STDOUT:   %assoc0.534: %Z.assoc_type = assoc_entity element0, @Z.%Z.Zero.decl [concrete]
-// CHECK:STDOUT:   %Self.as_type.cd1: type = facet_access_type %Self.6e6 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a40: type = pattern_type %Self.as_type.cd1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.5da: type = facet_access_type %Self.9ba [symbolic]
+// CHECK:STDOUT:   %pattern_type.09d: type = pattern_type %Self.as_type.5da [symbolic]
 // CHECK:STDOUT:   %Z.Method.type: type = fn_type @Z.Method [concrete]
 // CHECK:STDOUT:   %Z.Method: %Z.Method.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %Z.assoc_type = assoc_entity element1, @Z.%Z.Method.decl [concrete]
-// CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self.6e6) [symbolic]
+// CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self.9ba) [symbolic]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero: %<error>.as.Z.impl.Zero.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %<error>.as.Z.impl.Method.type: type = fn_type @<error>.as.Z.impl.Method, @<error>.as.Z.impl(%Self.6e6) [symbolic]
+// CHECK:STDOUT:   %<error>.as.Z.impl.Method.type: type = fn_type @<error>.as.Z.impl.Method, @<error>.as.Z.impl(%Self.9ba) [symbolic]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Method: %<error>.as.Z.impl.Method.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %require_complete.dbd: <witness> = require_complete_type %Self.as_type.cd1 [symbolic]
+// CHECK:STDOUT:   %require_complete.ac1: <witness> = require_complete_type %Self.as_type.5da [symbolic]
 // CHECK:STDOUT:   %Point: type = class_type @Point [concrete]
 // CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness @Point.%Z.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Point.as.Z.impl.Zero.type: type = fn_type @Point.as.Z.impl.Zero [concrete]
@@ -249,7 +249,7 @@ class X {
 // CHECK:STDOUT:   %Z.facet: %Z.type = facet_value %Point, (%Z.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e19: <witness> = impl_witness @Point.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9a7: <witness> = impl_witness @Point.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.536: type = ptr_type %Point [concrete]
 // CHECK:STDOUT:   %pattern_type.bbc: type = pattern_type %ptr.536 [concrete]
 // CHECK:STDOUT:   %Point.as.Destroy.impl.Op.type: type = fn_type @Point.as.Destroy.impl.Op [concrete]
@@ -258,9 +258,9 @@ class X {
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.d52: type = fn_type_with_self_type %Z.Zero.type, %Z.facet [concrete]
+// CHECK:STDOUT:   %.645: type = fn_type_with_self_type %Z.Zero.type, %Z.facet [concrete]
 // CHECK:STDOUT:   %Point.val: %Point = struct_value () [concrete]
-// CHECK:STDOUT:   %.462: type = fn_type_with_self_type %Z.Method.type, %Z.facet [concrete]
+// CHECK:STDOUT:   %.2e0: type = fn_type_with_self_type %Z.Method.type, %Z.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -286,20 +286,20 @@ class X {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9ba]
 // CHECK:STDOUT:   %Z.Zero.decl: %Z.Zero.type = fn_decl @Z.Zero [concrete = constants.%Z.Zero] {} {}
 // CHECK:STDOUT:   %assoc0: %Z.assoc_type = assoc_entity element0, %Z.Zero.decl [concrete = constants.%assoc0.534]
 // CHECK:STDOUT:   %Z.Method.decl: %Z.Method.type = fn_decl @Z.Method [concrete = constants.%Z.Method] {
-// CHECK:STDOUT:     %self.patt: @Z.Method.%pattern_type (%pattern_type.a40) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Z.Method.%pattern_type (%pattern_type.a40) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Z.Method.%pattern_type (%pattern_type.09d) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Z.Method.%pattern_type (%pattern_type.09d) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @Z.Method.%Self.as_type.loc5_19.1 (%Self.as_type.cd1) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_19.1: type = splice_block %.loc5_19.2 [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.cd1)] {
-// CHECK:STDOUT:       %Self.ref: %Z.type = name_ref Self, @Z.%Self [symbolic = %Self (constants.%Self.6e6)]
-// CHECK:STDOUT:       %Self.as_type.loc5_19.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.cd1)]
-// CHECK:STDOUT:       %.loc5_19.2: type = converted %Self.ref, %Self.as_type.loc5_19.2 [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.cd1)]
+// CHECK:STDOUT:     %self.param: @Z.Method.%Self.as_type.loc5_19.1 (%Self.as_type.5da) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_19.1: type = splice_block %.loc5_19.2 [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.5da)] {
+// CHECK:STDOUT:       %Self.ref: %Z.type = name_ref Self, @Z.%Self [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:       %Self.as_type.loc5_19.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.5da)]
+// CHECK:STDOUT:       %.loc5_19.2: type = converted %Self.ref, %Self.as_type.loc5_19.2 [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.5da)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @Z.Method.%Self.as_type.loc5_19.1 (%Self.as_type.cd1) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @Z.Method.%Self.as_type.loc5_19.1 (%Self.as_type.5da) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %Z.assoc_type = assoc_entity element1, %Z.Method.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:   impl_decl @<error>.as.Z.impl [concrete] {} {
@@ -316,7 +316,7 @@ class X {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @<error>.as.Z.impl(@Z.%Self: %Z.type) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.6e6)]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.9ba)]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self) [symbolic = %<error>.as.Z.impl.Zero.type (constants.%<error>.as.Z.impl.Zero.type)]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero: @<error>.as.Z.impl.%<error>.as.Z.impl.Zero.type (%<error>.as.Z.impl.Zero.type) = struct_value () [symbolic = %<error>.as.Z.impl.Zero (constants.%<error>.as.Z.impl.Zero)]
 // CHECK:STDOUT:   %<error>.as.Z.impl.Method.type: type = fn_type @<error>.as.Z.impl.Method, @<error>.as.Z.impl(%Self) [symbolic = %<error>.as.Z.impl.Method.type (constants.%<error>.as.Z.impl.Method.type)]
@@ -325,16 +325,16 @@ class X {
 // CHECK:STDOUT:   impl: <error> as %Z.ref {
 // CHECK:STDOUT:     %<error>.as.Z.impl.Zero.decl: @<error>.as.Z.impl.%<error>.as.Z.impl.Zero.type (%<error>.as.Z.impl.Zero.type) = fn_decl @<error>.as.Z.impl.Zero [symbolic = @<error>.as.Z.impl.%<error>.as.Z.impl.Zero (constants.%<error>.as.Z.impl.Zero)] {} {}
 // CHECK:STDOUT:     %<error>.as.Z.impl.Method.decl: @<error>.as.Z.impl.%<error>.as.Z.impl.Method.type (%<error>.as.Z.impl.Method.type) = fn_decl @<error>.as.Z.impl.Method [symbolic = @<error>.as.Z.impl.%<error>.as.Z.impl.Method (constants.%<error>.as.Z.impl.Method)] {
-// CHECK:STDOUT:       %self.patt: @<error>.as.Z.impl.Method.%pattern_type (%pattern_type.a40) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @<error>.as.Z.impl.Method.%pattern_type (%pattern_type.a40) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @<error>.as.Z.impl.Method.%pattern_type (%pattern_type.09d) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @<error>.as.Z.impl.Method.%pattern_type (%pattern_type.09d) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @<error>.as.Z.impl.Method.%Self.as_type.loc13_21.1 (%Self.as_type.cd1) = value_param call_param0
-// CHECK:STDOUT:       %.loc13_21.1: type = splice_block %.loc13_21.2 [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.cd1)] {
-// CHECK:STDOUT:         %Self.ref: %Z.type = name_ref Self, @Z.%Self [symbolic = %Self (constants.%Self.6e6)]
-// CHECK:STDOUT:         %Self.as_type.loc13_21.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.cd1)]
-// CHECK:STDOUT:         %.loc13_21.2: type = converted %Self.ref, %Self.as_type.loc13_21.2 [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.cd1)]
+// CHECK:STDOUT:       %self.param: @<error>.as.Z.impl.Method.%Self.as_type.loc13_21.1 (%Self.as_type.5da) = value_param call_param0
+// CHECK:STDOUT:       %.loc13_21.1: type = splice_block %.loc13_21.2 [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.5da)] {
+// CHECK:STDOUT:         %Self.ref: %Z.type = name_ref Self, @Z.%Self [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:         %Self.as_type.loc13_21.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.5da)]
+// CHECK:STDOUT:         %.loc13_21.2: type = converted %Self.ref, %Self.as_type.loc13_21.2 [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.5da)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @<error>.as.Z.impl.Method.%Self.as_type.loc13_21.1 (%Self.as_type.cd1) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @<error>.as.Z.impl.Method.%Self.as_type.loc13_21.1 (%Self.as_type.5da) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -387,7 +387,7 @@ class X {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Point [concrete = constants.%Point]
 // CHECK:STDOUT:   impl_decl @Point.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Point.as.Destroy.impl.%Point.as.Destroy.impl.Op.decl), @Point.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e19]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9a7]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -401,11 +401,11 @@ class X {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Z.Method(@Z.%Self: %Z.type) {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.6e6)]
-// CHECK:STDOUT:   %Self.as_type.loc5_19.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.cd1)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_19.1 [symbolic = %pattern_type (constants.%pattern_type.a40)]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Self.as_type.loc5_19.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_19.1 (constants.%Self.as_type.5da)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_19.1 [symbolic = %pattern_type (constants.%pattern_type.09d)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Z.Method.%Self.as_type.loc5_19.1 (%Self.as_type.cd1));
+// CHECK:STDOUT:   fn(%self.param: @Z.Method.%Self.as_type.loc5_19.1 (%Self.as_type.5da));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @<error>.as.Z.impl.Zero(@Z.%Self: %Z.type) {
@@ -418,14 +418,14 @@ class X {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @<error>.as.Z.impl.Method(@Z.%Self: %Z.type) {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.6e6)]
-// CHECK:STDOUT:   %Self.as_type.loc13_21.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.cd1)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc13_21.1 [symbolic = %pattern_type (constants.%pattern_type.a40)]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Self.as_type.loc13_21.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc13_21.1 (constants.%Self.as_type.5da)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc13_21.1 [symbolic = %pattern_type (constants.%pattern_type.09d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc13_21.1 [symbolic = %require_complete (constants.%require_complete.dbd)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc13_21.1 [symbolic = %require_complete (constants.%require_complete.ac1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @<error>.as.Z.impl.Method.%Self.as_type.loc13_21.1 (%Self.as_type.cd1)) {
+// CHECK:STDOUT:   fn(%self.param: @<error>.as.Z.impl.Method.%Self.as_type.loc13_21.1 (%Self.as_type.5da)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -450,7 +450,7 @@ class X {
 // CHECK:STDOUT:   %Zero.ref: %Z.assoc_type = name_ref Zero, @Z.%assoc0 [concrete = constants.%assoc0.534]
 // CHECK:STDOUT:   %Z.facet: %Z.type = facet_value constants.%Point, (constants.%Z.impl_witness) [concrete = constants.%Z.facet]
 // CHECK:STDOUT:   %.loc28: %Z.type = converted %Point.ref.loc28, %Z.facet [concrete = constants.%Z.facet]
-// CHECK:STDOUT:   %impl.elem0: %.d52 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%Point.as.Z.impl.Zero]
+// CHECK:STDOUT:   %impl.elem0: %.645 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%Point.as.Z.impl.Zero]
 // CHECK:STDOUT:   %Point.as.Z.impl.Zero.call: init %empty_tuple.type = call %impl.elem0()
 // CHECK:STDOUT:   %.loc29_5.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %Point.ref.loc29: type = name_ref Point, file.%Point.decl [concrete = constants.%Point]
@@ -460,7 +460,7 @@ class X {
 // CHECK:STDOUT:   %.loc29_7.1: ref %Point = converted %.loc29_5.1, %.loc29_5.4
 // CHECK:STDOUT:   %Z.ref.loc29: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
 // CHECK:STDOUT:   %Method.ref: %Z.assoc_type = name_ref Method, @Z.%assoc1 [concrete = constants.%assoc1]
-// CHECK:STDOUT:   %impl.elem1: %.462 = impl_witness_access constants.%Z.impl_witness, element1 [concrete = constants.%Point.as.Z.impl.Method]
+// CHECK:STDOUT:   %impl.elem1: %.2e0 = impl_witness_access constants.%Z.impl_witness, element1 [concrete = constants.%Point.as.Z.impl.Method]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc29_7.1, %impl.elem1
 // CHECK:STDOUT:   %.loc29_7.2: %Point = bind_value %.loc29_7.1
 // CHECK:STDOUT:   %Point.as.Z.impl.Method.call: init %empty_tuple.type = call %bound_method(%.loc29_7.2)
@@ -470,29 +470,29 @@ class X {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z.Zero(constants.%Self.6e6) {}
+// CHECK:STDOUT: specific @Z.Zero(constants.%Self.9ba) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z.Method(constants.%Self.6e6) {
-// CHECK:STDOUT:   %Self => constants.%Self.6e6
-// CHECK:STDOUT:   %Self.as_type.loc5_19.1 => constants.%Self.as_type.cd1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a40
+// CHECK:STDOUT: specific @Z.Method(constants.%Self.9ba) {
+// CHECK:STDOUT:   %Self => constants.%Self.9ba
+// CHECK:STDOUT:   %Self.as_type.loc5_19.1 => constants.%Self.as_type.5da
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.09d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @<error>.as.Z.impl(constants.%Self.6e6) {
+// CHECK:STDOUT: specific @<error>.as.Z.impl(constants.%Self.9ba) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self => constants.%Self.6e6
+// CHECK:STDOUT:   %Self => constants.%Self.9ba
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero.type => constants.%<error>.as.Z.impl.Zero.type
 // CHECK:STDOUT:   %<error>.as.Z.impl.Zero => constants.%<error>.as.Z.impl.Zero
 // CHECK:STDOUT:   %<error>.as.Z.impl.Method.type => constants.%<error>.as.Z.impl.Method.type
 // CHECK:STDOUT:   %<error>.as.Z.impl.Method => constants.%<error>.as.Z.impl.Method
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @<error>.as.Z.impl.Zero(constants.%Self.6e6) {}
+// CHECK:STDOUT: specific @<error>.as.Z.impl.Zero(constants.%Self.9ba) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @<error>.as.Z.impl.Method(constants.%Self.6e6) {
-// CHECK:STDOUT:   %Self => constants.%Self.6e6
-// CHECK:STDOUT:   %Self.as_type.loc13_21.1 => constants.%Self.as_type.cd1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a40
+// CHECK:STDOUT: specific @<error>.as.Z.impl.Method(constants.%Self.9ba) {
+// CHECK:STDOUT:   %Self => constants.%Self.9ba
+// CHECK:STDOUT:   %Self.as_type.loc13_21.1 => constants.%Self.as_type.5da
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.09d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z.Zero(constants.%Z.facet) {}
@@ -507,14 +507,14 @@ class X {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self.31d: %A.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.907: %A.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %A.B.type: type = fn_type @A.B [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.B: %A.B.type = struct_value () [concrete]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A [concrete]
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, @A.%A.B.decl [concrete]
 // CHECK:STDOUT:   %C.type: type = facet_type <@C> [concrete]
-// CHECK:STDOUT:   %Self.02e: %C.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.5a6: %C.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %X: type = class_type @X [concrete]
@@ -558,7 +558,7 @@ class X {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.31d]
+// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.907]
 // CHECK:STDOUT:   %A.B.decl: %A.B.type = fn_decl @A.B [concrete = constants.%A.B] {} {}
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, %A.B.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -569,7 +569,7 @@ class X {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @C {
-// CHECK:STDOUT:   %Self: %C.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.02e]
+// CHECK:STDOUT:   %Self: %C.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.5a6]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -649,7 +649,7 @@ class X {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @X.as.Destroy.impl.Op(%self.param: %ptr.d17) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.B(constants.%Self.31d) {}
+// CHECK:STDOUT: specific @A.B(constants.%Self.907) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.B(constants.%A.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon b/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon
index 15a08c853d37..eabc678c810b 100644
--- a/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon
+++ b/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon
@@ -244,17 +244,17 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.82e: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
 // CHECK:STDOUT:   %NoF: type = class_type @NoF [concrete]
-// CHECK:STDOUT:   %I.impl_witness.901: <witness> = impl_witness @NoF.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.407: <witness> = impl_witness @NoF.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9b3: <witness> = impl_witness @NoF.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.38d: <witness> = impl_witness @NoF.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.0f9: type = ptr_type %NoF [concrete]
 // CHECK:STDOUT:   %pattern_type.7b5: type = pattern_type %ptr.0f9 [concrete]
 // CHECK:STDOUT:   %NoF.as.Destroy.impl.Op.type: type = fn_type @NoF.as.Destroy.impl.Op [concrete]
@@ -262,9 +262,9 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %FNotFunction: type = class_type @FNotFunction [concrete]
-// CHECK:STDOUT:   %I.impl_witness.44e: <witness> = impl_witness @FNotFunction.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.464: <witness> = impl_witness @FNotFunction.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %F: type = class_type @F [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.f9b: <witness> = impl_witness @FNotFunction.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.b5b: <witness> = impl_witness @FNotFunction.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.2b2: type = ptr_type %FNotFunction [concrete]
 // CHECK:STDOUT:   %pattern_type.27c: type = pattern_type %ptr.2b2 [concrete]
 // CHECK:STDOUT:   %FNotFunction.as.Destroy.impl.Op.type: type = fn_type @FNotFunction.as.Destroy.impl.Op [concrete]
@@ -272,88 +272,88 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %PossiblyF.type: type = fn_type @PossiblyF [concrete]
 // CHECK:STDOUT:   %PossiblyF: %PossiblyF.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FAlias: type = class_type @FAlias [concrete]
-// CHECK:STDOUT:   %I.impl_witness.c80: <witness> = impl_witness @FAlias.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.740: <witness> = impl_witness @FAlias.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.2d7: <witness> = impl_witness @FAlias.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.677: <witness> = impl_witness @FAlias.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4bf: type = ptr_type %FAlias [concrete]
 // CHECK:STDOUT:   %pattern_type.310: type = pattern_type %ptr.4bf [concrete]
 // CHECK:STDOUT:   %FAlias.as.Destroy.impl.Op.type: type = fn_type @FAlias.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FAlias.as.Destroy.impl.Op: %FAlias.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FExtraParam: type = class_type @FExtraParam [concrete]
-// CHECK:STDOUT:   %I.impl_witness.1f3: <witness> = impl_witness @FExtraParam.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.8ae: <witness> = impl_witness @FExtraParam.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
-// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.type.44ef8c.1: type = fn_type @FExtraParam.as.I.impl.F.loc69_18.1 [concrete]
-// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.424e9e.1: %FExtraParam.as.I.impl.F.type.44ef8c.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.fa4: %I.type = facet_value %FExtraParam, (%I.impl_witness.1f3) [concrete]
-// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.type.44ef8c.2: type = fn_type @FExtraParam.as.I.impl.F.loc69_18.2 [concrete]
-// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.424e9e.2: %FExtraParam.as.I.impl.F.type.44ef8c.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.44a: <witness> = impl_witness @FExtraParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.type.598f47.1: type = fn_type @FExtraParam.as.I.impl.F.loc69_18.1 [concrete]
+// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.068b9f.1: %FExtraParam.as.I.impl.F.type.598f47.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %I.facet.56d: %I.type = facet_value %FExtraParam, (%I.impl_witness.8ae) [concrete]
+// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.type.598f47.2: type = fn_type @FExtraParam.as.I.impl.F.loc69_18.2 [concrete]
+// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.068b9f.2: %FExtraParam.as.I.impl.F.type.598f47.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.8f5: <witness> = impl_witness @FExtraParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.0f2: type = ptr_type %FExtraParam [concrete]
 // CHECK:STDOUT:   %pattern_type.8d3: type = pattern_type %ptr.0f2 [concrete]
 // CHECK:STDOUT:   %FExtraParam.as.Destroy.impl.Op.type: type = fn_type @FExtraParam.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FExtraParam.as.Destroy.impl.Op: %FExtraParam.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FExtraImplicitParam: type = class_type @FExtraImplicitParam [concrete]
-// CHECK:STDOUT:   %I.impl_witness.a7b: <witness> = impl_witness @FExtraImplicitParam.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.ecd: <witness> = impl_witness @FExtraImplicitParam.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.8ae: type = pattern_type %FExtraImplicitParam [concrete]
-// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.type.e1abdd.1: type = fn_type @FExtraImplicitParam.as.I.impl.F.loc85_23.1 [concrete]
-// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.6ff574.1: %FExtraImplicitParam.as.I.impl.F.type.e1abdd.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.ee5: %I.type = facet_value %FExtraImplicitParam, (%I.impl_witness.a7b) [concrete]
-// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.type.e1abdd.2: type = fn_type @FExtraImplicitParam.as.I.impl.F.loc85_23.2 [concrete]
-// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.6ff574.2: %FExtraImplicitParam.as.I.impl.F.type.e1abdd.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a05: <witness> = impl_witness @FExtraImplicitParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.type.ae6b94.1: type = fn_type @FExtraImplicitParam.as.I.impl.F.loc85_23.1 [concrete]
+// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.530aac.1: %FExtraImplicitParam.as.I.impl.F.type.ae6b94.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %I.facet.e7d: %I.type = facet_value %FExtraImplicitParam, (%I.impl_witness.ecd) [concrete]
+// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.type.ae6b94.2: type = fn_type @FExtraImplicitParam.as.I.impl.F.loc85_23.2 [concrete]
+// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.530aac.2: %FExtraImplicitParam.as.I.impl.F.type.ae6b94.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.64d: <witness> = impl_witness @FExtraImplicitParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.8c7: type = ptr_type %FExtraImplicitParam [concrete]
 // CHECK:STDOUT:   %pattern_type.ab8: type = pattern_type %ptr.8c7 [concrete]
 // CHECK:STDOUT:   %FExtraImplicitParam.as.Destroy.impl.Op.type: type = fn_type @FExtraImplicitParam.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FExtraImplicitParam.as.Destroy.impl.Op: %FExtraImplicitParam.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FExtraReturnType: type = class_type @FExtraReturnType [concrete]
-// CHECK:STDOUT:   %I.impl_witness.59a: <witness> = impl_witness @FExtraReturnType.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.9f6: <witness> = impl_witness @FExtraReturnType.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %FExtraReturnType.as.I.impl.F.type: type = fn_type @FExtraReturnType.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %FExtraReturnType.as.I.impl.F: %FExtraReturnType.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.d5c: %I.type = facet_value %FExtraReturnType, (%I.impl_witness.59a) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.3ea: <witness> = impl_witness @FExtraReturnType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.facet.1a5: %I.type = facet_value %FExtraReturnType, (%I.impl_witness.9f6) [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.332: <witness> = impl_witness @FExtraReturnType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.147: type = ptr_type %FExtraReturnType [concrete]
 // CHECK:STDOUT:   %pattern_type.f1c: type = pattern_type %ptr.147 [concrete]
 // CHECK:STDOUT:   %FExtraReturnType.as.Destroy.impl.Op.type: type = fn_type @FExtraReturnType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FExtraReturnType.as.Destroy.impl.Op: %FExtraReturnType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0.922: %J.assoc_type = assoc_entity element0, @J.%J.F.decl [concrete]
 // CHECK:STDOUT:   %FMissingParam: type = class_type @FMissingParam [concrete]
-// CHECK:STDOUT:   %J.impl_witness.4e9: <witness> = impl_witness @FMissingParam.%J.impl_witness_table [concrete]
-// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.type.69596c.1: type = fn_type @FMissingParam.as.J.impl.F.loc117_31.1 [concrete]
-// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.738f31.1: %FMissingParam.as.J.impl.F.type.69596c.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.94c: %J.type = facet_value %FMissingParam, (%J.impl_witness.4e9) [concrete]
-// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.type.69596c.2: type = fn_type @FMissingParam.as.J.impl.F.loc117_31.2 [concrete]
-// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.738f31.2: %FMissingParam.as.J.impl.F.type.69596c.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.672: <witness> = impl_witness @FMissingParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %J.impl_witness.ffa: <witness> = impl_witness @FMissingParam.%J.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.type.75ac8c.1: type = fn_type @FMissingParam.as.J.impl.F.loc117_31.1 [concrete]
+// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.75b4fc.1: %FMissingParam.as.J.impl.F.type.75ac8c.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.383: %J.type = facet_value %FMissingParam, (%J.impl_witness.ffa) [concrete]
+// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.type.75ac8c.2: type = fn_type @FMissingParam.as.J.impl.F.loc117_31.2 [concrete]
+// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.75b4fc.2: %FMissingParam.as.J.impl.F.type.75ac8c.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.e77: <witness> = impl_witness @FMissingParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.fc8: type = ptr_type %FMissingParam [concrete]
 // CHECK:STDOUT:   %pattern_type.c8f: type = pattern_type %ptr.fc8 [concrete]
 // CHECK:STDOUT:   %FMissingParam.as.Destroy.impl.Op.type: type = fn_type @FMissingParam.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FMissingParam.as.Destroy.impl.Op: %FMissingParam.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FMissingImplicitParam: type = class_type @FMissingImplicitParam [concrete]
-// CHECK:STDOUT:   %J.impl_witness.841: <witness> = impl_witness @FMissingImplicitParam.%J.impl_witness_table [concrete]
-// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.type.d97cef.1: type = fn_type @FMissingImplicitParam.as.J.impl.F.loc130_26.1 [concrete]
-// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.01de92.1: %FMissingImplicitParam.as.J.impl.F.type.d97cef.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.e7e: %J.type = facet_value %FMissingImplicitParam, (%J.impl_witness.841) [concrete]
-// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.type.d97cef.2: type = fn_type @FMissingImplicitParam.as.J.impl.F.loc130_26.2 [concrete]
-// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.01de92.2: %FMissingImplicitParam.as.J.impl.F.type.d97cef.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ae6: <witness> = impl_witness @FMissingImplicitParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %J.impl_witness.13b: <witness> = impl_witness @FMissingImplicitParam.%J.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.type.ad873d.1: type = fn_type @FMissingImplicitParam.as.J.impl.F.loc130_26.1 [concrete]
+// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.a13441.1: %FMissingImplicitParam.as.J.impl.F.type.ad873d.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.7cd: %J.type = facet_value %FMissingImplicitParam, (%J.impl_witness.13b) [concrete]
+// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.type.ad873d.2: type = fn_type @FMissingImplicitParam.as.J.impl.F.loc130_26.2 [concrete]
+// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.a13441.2: %FMissingImplicitParam.as.J.impl.F.type.ad873d.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.da8: <witness> = impl_witness @FMissingImplicitParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.c3c: type = ptr_type %FMissingImplicitParam [concrete]
 // CHECK:STDOUT:   %pattern_type.575: type = pattern_type %ptr.c3c [concrete]
 // CHECK:STDOUT:   %FMissingImplicitParam.as.Destroy.impl.Op.type: type = fn_type @FMissingImplicitParam.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FMissingImplicitParam.as.Destroy.impl.Op: %FMissingImplicitParam.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FMissingReturnType: type = class_type @FMissingReturnType [concrete]
-// CHECK:STDOUT:   %J.impl_witness.e75: <witness> = impl_witness @FMissingReturnType.%J.impl_witness_table [concrete]
-// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.type.123d7a.1: type = fn_type @FMissingReturnType.as.J.impl.F.loc152_30.1 [concrete]
-// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.c7d02d.1: %FMissingReturnType.as.J.impl.F.type.123d7a.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.974: %J.type = facet_value %FMissingReturnType, (%J.impl_witness.e75) [concrete]
-// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.type.123d7a.2: type = fn_type @FMissingReturnType.as.J.impl.F.loc152_30.2 [concrete]
-// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.c7d02d.2: %FMissingReturnType.as.J.impl.F.type.123d7a.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.8d8: <witness> = impl_witness @FMissingReturnType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %J.impl_witness.262: <witness> = impl_witness @FMissingReturnType.%J.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.type.53be08.1: type = fn_type @FMissingReturnType.as.J.impl.F.loc152_30.1 [concrete]
+// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.6158df.1: %FMissingReturnType.as.J.impl.F.type.53be08.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.eb2: %J.type = facet_value %FMissingReturnType, (%J.impl_witness.262) [concrete]
+// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.type.53be08.2: type = fn_type @FMissingReturnType.as.J.impl.F.loc152_30.2 [concrete]
+// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.6158df.2: %FMissingReturnType.as.J.impl.F.type.53be08.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.281: <witness> = impl_witness @FMissingReturnType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.41e: type = ptr_type %FMissingReturnType [concrete]
 // CHECK:STDOUT:   %pattern_type.585: type = pattern_type %ptr.41e [concrete]
 // CHECK:STDOUT:   %FMissingReturnType.as.Destroy.impl.Op.type: type = fn_type @FMissingReturnType.as.Destroy.impl.Op [concrete]
@@ -361,97 +361,97 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %FDifferentParamType: type = class_type @FDifferentParamType [concrete]
-// CHECK:STDOUT:   %J.impl_witness.cbe: <witness> = impl_witness @FDifferentParamType.%J.impl_witness_table [concrete]
+// CHECK:STDOUT:   %J.impl_witness.b8e: <witness> = impl_witness @FDifferentParamType.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.b90: type = pattern_type %FDifferentParamType [concrete]
-// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.type.6b537d.1: type = fn_type @FDifferentParamType.as.J.impl.F.loc171_38.1 [concrete]
-// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.04313a.1: %FDifferentParamType.as.J.impl.F.type.6b537d.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.37e: %J.type = facet_value %FDifferentParamType, (%J.impl_witness.cbe) [concrete]
-// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.type.6b537d.2: type = fn_type @FDifferentParamType.as.J.impl.F.loc171_38.2 [concrete]
-// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.04313a.2: %FDifferentParamType.as.J.impl.F.type.6b537d.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.443: <witness> = impl_witness @FDifferentParamType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.type.35d377.1: type = fn_type @FDifferentParamType.as.J.impl.F.loc171_38.1 [concrete]
+// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.8f8fbb.1: %FDifferentParamType.as.J.impl.F.type.35d377.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.aff: %J.type = facet_value %FDifferentParamType, (%J.impl_witness.b8e) [concrete]
+// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.type.35d377.2: type = fn_type @FDifferentParamType.as.J.impl.F.loc171_38.2 [concrete]
+// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.8f8fbb.2: %FDifferentParamType.as.J.impl.F.type.35d377.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6f0: <witness> = impl_witness @FDifferentParamType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.f1f: type = ptr_type %FDifferentParamType [concrete]
 // CHECK:STDOUT:   %pattern_type.e0c: type = pattern_type %ptr.f1f [concrete]
 // CHECK:STDOUT:   %FDifferentParamType.as.Destroy.impl.Op.type: type = fn_type @FDifferentParamType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FDifferentParamType.as.Destroy.impl.Op: %FDifferentParamType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FDifferentImplicitParamType: type = class_type @FDifferentImplicitParamType [concrete]
-// CHECK:STDOUT:   %J.impl_witness.af2: <witness> = impl_witness @FDifferentImplicitParamType.%J.impl_witness_table [concrete]
+// CHECK:STDOUT:   %J.impl_witness.699: <witness> = impl_witness @FDifferentImplicitParamType.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.9cc: type = pattern_type %FDifferentImplicitParamType [concrete]
-// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.1: type = fn_type @FDifferentImplicitParamType.as.J.impl.F.loc184_38.1 [concrete]
-// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.886f70.1: %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.bf1: %J.type = facet_value %FDifferentImplicitParamType, (%J.impl_witness.af2) [concrete]
-// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.2: type = fn_type @FDifferentImplicitParamType.as.J.impl.F.loc184_38.2 [concrete]
-// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.886f70.2: %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c2a: <witness> = impl_witness @FDifferentImplicitParamType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.1: type = fn_type @FDifferentImplicitParamType.as.J.impl.F.loc184_38.1 [concrete]
+// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.612f41.1: %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.ceb: %J.type = facet_value %FDifferentImplicitParamType, (%J.impl_witness.699) [concrete]
+// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.2: type = fn_type @FDifferentImplicitParamType.as.J.impl.F.loc184_38.2 [concrete]
+// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.612f41.2: %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.7bb: <witness> = impl_witness @FDifferentImplicitParamType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.dc5: type = ptr_type %FDifferentImplicitParamType [concrete]
 // CHECK:STDOUT:   %pattern_type.986: type = pattern_type %ptr.dc5 [concrete]
 // CHECK:STDOUT:   %FDifferentImplicitParamType.as.Destroy.impl.Op.type: type = fn_type @FDifferentImplicitParamType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FDifferentImplicitParamType.as.Destroy.impl.Op: %FDifferentImplicitParamType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %FDifferentReturnType: type = class_type @FDifferentReturnType [concrete]
-// CHECK:STDOUT:   %J.impl_witness.bc1: <witness> = impl_witness @FDifferentReturnType.%J.impl_witness_table [concrete]
+// CHECK:STDOUT:   %J.impl_witness.006: <witness> = impl_witness @FDifferentReturnType.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.8ee: type = pattern_type %FDifferentReturnType [concrete]
-// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.type.d3b58f.1: type = fn_type @FDifferentReturnType.as.J.impl.F.loc200_38.1 [concrete]
-// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.be86c9.1: %FDifferentReturnType.as.J.impl.F.type.d3b58f.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.67f: %J.type = facet_value %FDifferentReturnType, (%J.impl_witness.bc1) [concrete]
-// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.type.d3b58f.2: type = fn_type @FDifferentReturnType.as.J.impl.F.loc200_38.2 [concrete]
-// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.be86c9.2: %FDifferentReturnType.as.J.impl.F.type.d3b58f.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.6d2: <witness> = impl_witness @FDifferentReturnType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.type.a69d68.1: type = fn_type @FDifferentReturnType.as.J.impl.F.loc200_38.1 [concrete]
+// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.25e324.1: %FDifferentReturnType.as.J.impl.F.type.a69d68.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.8af: %J.type = facet_value %FDifferentReturnType, (%J.impl_witness.006) [concrete]
+// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.type.a69d68.2: type = fn_type @FDifferentReturnType.as.J.impl.F.loc200_38.2 [concrete]
+// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.25e324.2: %FDifferentReturnType.as.J.impl.F.type.a69d68.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.44b: <witness> = impl_witness @FDifferentReturnType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.954: type = ptr_type %FDifferentReturnType [concrete]
 // CHECK:STDOUT:   %pattern_type.246: type = pattern_type %ptr.954 [concrete]
 // CHECK:STDOUT:   %FDifferentReturnType.as.Destroy.impl.Op.type: type = fn_type @FDifferentReturnType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %FDifferentReturnType.as.Destroy.impl.Op: %FDifferentReturnType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %SelfNested.type: type = facet_type <@SelfNested> [concrete]
-// CHECK:STDOUT:   %Self.2ff: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.e1e: type = facet_access_type %Self.2ff [symbolic]
-// CHECK:STDOUT:   %ptr.e87: type = ptr_type %Self.as_type.e1e [symbolic]
+// CHECK:STDOUT:   %Self.478: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.27a: type = facet_access_type %Self.478 [symbolic]
+// CHECK:STDOUT:   %ptr.e4e: type = ptr_type %Self.as_type.27a [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %struct_type.x.y.81e: type = struct_type {.x: %Self.as_type.e1e, .y: %i32} [symbolic]
+// CHECK:STDOUT:   %struct_type.x.y.d11: type = struct_type {.x: %Self.as_type.27a, .y: %i32} [symbolic]
 // CHECK:STDOUT:   %tuple.type.24b: type = tuple_type (type, type) [concrete]
-// CHECK:STDOUT:   %tuple.type.229: type = tuple_type (%ptr.e87, %struct_type.x.y.81e) [symbolic]
-// CHECK:STDOUT:   %pattern_type.ced: type = pattern_type %tuple.type.229 [symbolic]
+// CHECK:STDOUT:   %tuple.type.cea: type = tuple_type (%ptr.e4e, %struct_type.x.y.d11) [symbolic]
+// CHECK:STDOUT:   %pattern_type.7ef: type = pattern_type %tuple.type.cea [symbolic]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %array_type.873: type = array_type %int_4, %Self.as_type.e1e [symbolic]
-// CHECK:STDOUT:   %pattern_type.c7e: type = pattern_type %array_type.873 [symbolic]
+// CHECK:STDOUT:   %array_type.6bb: type = array_type %int_4, %Self.as_type.27a [symbolic]
+// CHECK:STDOUT:   %pattern_type.627: type = pattern_type %array_type.6bb [symbolic]
 // CHECK:STDOUT:   %SelfNested.F.type: type = fn_type @SelfNested.F [concrete]
 // CHECK:STDOUT:   %SelfNested.F: %SelfNested.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %SelfNested.assoc_type: type = assoc_entity_type @SelfNested [concrete]
 // CHECK:STDOUT:   %assoc0.beb: %SelfNested.assoc_type = assoc_entity element0, @SelfNested.%SelfNested.F.decl [concrete]
 // CHECK:STDOUT:   %SelfNestedBadParam: type = class_type @SelfNestedBadParam [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness.e31: <witness> = impl_witness @SelfNestedBadParam.%SelfNested.impl_witness_table [concrete]
+// CHECK:STDOUT:   %SelfNested.impl_witness.60e: <witness> = impl_witness @SelfNestedBadParam.%SelfNested.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4cd: type = ptr_type %SelfNestedBadParam [concrete]
 // CHECK:STDOUT:   %struct_type.x.y.871: type = struct_type {.x: %i32, .y: %i32} [concrete]
 // CHECK:STDOUT:   %tuple.type.a7d: type = tuple_type (%ptr.4cd, %struct_type.x.y.871) [concrete]
 // CHECK:STDOUT:   %pattern_type.714: type = pattern_type %tuple.type.a7d [concrete]
 // CHECK:STDOUT:   %array_type.a41: type = array_type %int_4, %SelfNestedBadParam [concrete]
 // CHECK:STDOUT:   %pattern_type.1f1: type = pattern_type %array_type.a41 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.1: type = fn_type @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.1 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.fa8d04.1: %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %SelfNested.facet.608: %SelfNested.type = facet_value %SelfNestedBadParam, (%SelfNested.impl_witness.e31) [concrete]
+// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.1: type = fn_type @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.1 [concrete]
+// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.e128d3.1: %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %SelfNested.facet.362: %SelfNested.type = facet_value %SelfNestedBadParam, (%SelfNested.impl_witness.60e) [concrete]
 // CHECK:STDOUT:   %struct_type.x.y.a89: type = struct_type {.x: %SelfNestedBadParam, .y: %i32} [concrete]
 // CHECK:STDOUT:   %tuple.type.9c9: type = tuple_type (%ptr.4cd, %struct_type.x.y.a89) [concrete]
 // CHECK:STDOUT:   %pattern_type.a5c: type = pattern_type %tuple.type.9c9 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.2: type = fn_type @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.2 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.fa8d04.2: %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.908: <witness> = impl_witness @SelfNestedBadParam.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.2: type = fn_type @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.2 [concrete]
+// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.e128d3.2: %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.93c: <witness> = impl_witness @SelfNestedBadParam.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.2a7: type = pattern_type %ptr.4cd [concrete]
 // CHECK:STDOUT:   %SelfNestedBadParam.as.Destroy.impl.Op.type: type = fn_type @SelfNestedBadParam.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %SelfNestedBadParam.as.Destroy.impl.Op: %SelfNestedBadParam.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %SelfNestedBadReturnType: type = class_type @SelfNestedBadReturnType [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness.d5e: <witness> = impl_witness @SelfNestedBadReturnType.%SelfNested.impl_witness_table [concrete]
+// CHECK:STDOUT:   %SelfNested.impl_witness.a8d: <witness> = impl_witness @SelfNestedBadReturnType.%SelfNested.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.612: type = ptr_type %SelfNestedBadReturnType [concrete]
 // CHECK:STDOUT:   %struct_type.x.y.ac5: type = struct_type {.x: %SelfNestedBadReturnType, .y: %i32} [concrete]
 // CHECK:STDOUT:   %tuple.type.eb9: type = tuple_type (%ptr.612, %struct_type.x.y.ac5) [concrete]
 // CHECK:STDOUT:   %pattern_type.23f: type = pattern_type %tuple.type.eb9 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.1: type = fn_type @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.1 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.0bc78a.1: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %SelfNested.facet.766: %SelfNested.type = facet_value %SelfNestedBadReturnType, (%SelfNested.impl_witness.d5e) [concrete]
+// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.1: type = fn_type @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.1 [concrete]
+// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.cb45e1.1: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %SelfNested.facet.470: %SelfNested.type = facet_value %SelfNestedBadReturnType, (%SelfNested.impl_witness.a8d) [concrete]
 // CHECK:STDOUT:   %array_type.126: type = array_type %int_4, %SelfNestedBadReturnType [concrete]
 // CHECK:STDOUT:   %pattern_type.f56: type = pattern_type %array_type.126 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.2: type = fn_type @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.2 [concrete]
-// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.0bc78a.2: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.9f5: <witness> = impl_witness @SelfNestedBadReturnType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.2: type = fn_type @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.2 [concrete]
+// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.cb45e1.2: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.750: <witness> = impl_witness @SelfNestedBadReturnType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.4de: type = pattern_type %ptr.612 [concrete]
 // CHECK:STDOUT:   %SelfNestedBadReturnType.as.Destroy.impl.Op.type: type = fn_type @SelfNestedBadReturnType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %SelfNestedBadReturnType.as.Destroy.impl.Op: %SelfNestedBadReturnType.as.Destroy.impl.Op.type = struct_value () [concrete]
@@ -516,7 +516,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {} {}
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0.82e]
 // CHECK:STDOUT:
@@ -527,7 +527,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
@@ -565,36 +565,36 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @SelfNested {
-// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2ff]
+// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.478]
 // CHECK:STDOUT:   %SelfNested.F.decl: %SelfNested.F.type = fn_decl @SelfNested.F [concrete = constants.%SelfNested.F] {
-// CHECK:STDOUT:     %x.patt: @SelfNested.F.%pattern_type.loc211_8 (%pattern_type.ced) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @SelfNested.F.%pattern_type.loc211_8 (%pattern_type.ced) = value_param_pattern %x.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @SelfNested.F.%pattern_type.loc211_41 (%pattern_type.c7e) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @SelfNested.F.%pattern_type.loc211_41 (%pattern_type.c7e) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %x.patt: @SelfNested.F.%pattern_type.loc211_8 (%pattern_type.7ef) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @SelfNested.F.%pattern_type.loc211_8 (%pattern_type.7ef) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @SelfNested.F.%pattern_type.loc211_41 (%pattern_type.627) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @SelfNested.F.%pattern_type.loc211_41 (%pattern_type.627) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc211_50: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.2ff)]
+// CHECK:STDOUT:     %Self.ref.loc211_50: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.478)]
 // CHECK:STDOUT:     %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4]
-// CHECK:STDOUT:     %Self.as_type.loc211_50: type = facet_access_type %Self.ref.loc211_50 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:     %.loc211_50: type = converted %Self.ref.loc211_50, %Self.as_type.loc211_50 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:     %array_type.loc211_57.2: type = array_type %int_4, %.loc211_50 [symbolic = %array_type.loc211_57.1 (constants.%array_type.873)]
-// CHECK:STDOUT:     %x.param: @SelfNested.F.%tuple.type (%tuple.type.229) = value_param call_param0
-// CHECK:STDOUT:     %.loc211_38.1: type = splice_block %.loc211_38.3 [symbolic = %tuple.type (constants.%tuple.type.229)] {
-// CHECK:STDOUT:       %Self.ref.loc211_12: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.2ff)]
-// CHECK:STDOUT:       %Self.as_type.loc211_16.2: type = facet_access_type %Self.ref.loc211_12 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:       %.loc211_16: type = converted %Self.ref.loc211_12, %Self.as_type.loc211_16.2 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:       %ptr.loc211_16.2: type = ptr_type %.loc211_16 [symbolic = %ptr.loc211_16.1 (constants.%ptr.e87)]
-// CHECK:STDOUT:       %Self.ref.loc211_24: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.2ff)]
-// CHECK:STDOUT:       %Self.as_type.loc211_24: type = facet_access_type %Self.ref.loc211_24 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:       %.loc211_24: type = converted %Self.ref.loc211_24, %Self.as_type.loc211_24 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
+// CHECK:STDOUT:     %Self.as_type.loc211_50: type = facet_access_type %Self.ref.loc211_50 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:     %.loc211_50: type = converted %Self.ref.loc211_50, %Self.as_type.loc211_50 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:     %array_type.loc211_57.2: type = array_type %int_4, %.loc211_50 [symbolic = %array_type.loc211_57.1 (constants.%array_type.6bb)]
+// CHECK:STDOUT:     %x.param: @SelfNested.F.%tuple.type (%tuple.type.cea) = value_param call_param0
+// CHECK:STDOUT:     %.loc211_38.1: type = splice_block %.loc211_38.3 [symbolic = %tuple.type (constants.%tuple.type.cea)] {
+// CHECK:STDOUT:       %Self.ref.loc211_12: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.478)]
+// CHECK:STDOUT:       %Self.as_type.loc211_16.2: type = facet_access_type %Self.ref.loc211_12 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:       %.loc211_16: type = converted %Self.ref.loc211_12, %Self.as_type.loc211_16.2 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:       %ptr.loc211_16.2: type = ptr_type %.loc211_16 [symbolic = %ptr.loc211_16.1 (constants.%ptr.e4e)]
+// CHECK:STDOUT:       %Self.ref.loc211_24: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.478)]
+// CHECK:STDOUT:       %Self.as_type.loc211_24: type = facet_access_type %Self.ref.loc211_24 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:       %.loc211_24: type = converted %Self.ref.loc211_24, %Self.as_type.loc211_24 [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
 // CHECK:STDOUT:       %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:       %struct_type.x.y.loc211_37.2: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc211_16.1 (%Self.as_type.e1e), .y: %i32} [symbolic = %struct_type.x.y.loc211_37.1 (constants.%struct_type.x.y.81e)]
+// CHECK:STDOUT:       %struct_type.x.y.loc211_37.2: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc211_16.1 (%Self.as_type.27a), .y: %i32} [symbolic = %struct_type.x.y.loc211_37.1 (constants.%struct_type.x.y.d11)]
 // CHECK:STDOUT:       %.loc211_38.2: %tuple.type.24b = tuple_literal (%ptr.loc211_16.2, %struct_type.x.y.loc211_37.2)
-// CHECK:STDOUT:       %.loc211_38.3: type = converted %.loc211_38.2, constants.%tuple.type.229 [symbolic = %tuple.type (constants.%tuple.type.229)]
+// CHECK:STDOUT:       %.loc211_38.3: type = converted %.loc211_38.2, constants.%tuple.type.cea [symbolic = %tuple.type (constants.%tuple.type.cea)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %x: @SelfNested.F.%tuple.type (%tuple.type.229) = bind_name x, %x.param
-// CHECK:STDOUT:     %return.param: ref @SelfNested.F.%array_type.loc211_57.1 (%array_type.873) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @SelfNested.F.%array_type.loc211_57.1 (%array_type.873) = return_slot %return.param
+// CHECK:STDOUT:     %x: @SelfNested.F.%tuple.type (%tuple.type.cea) = bind_name x, %x.param
+// CHECK:STDOUT:     %return.param: ref @SelfNested.F.%array_type.loc211_57.1 (%array_type.6bb) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @SelfNested.F.%array_type.loc211_57.1 (%array_type.6bb) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %SelfNested.assoc_type = assoc_entity element0, %SelfNested.F.decl [concrete = constants.%assoc0.beb]
 // CHECK:STDOUT:
@@ -677,7 +677,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FExtraParam.as.I.impl: %Self.ref as %I.ref {
-// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.decl.loc69_18.1: %FExtraParam.as.I.impl.F.type.44ef8c.1 = fn_decl @FExtraParam.as.I.impl.F.loc69_18.1 [concrete = constants.%FExtraParam.as.I.impl.F.424e9e.1] {
+// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.decl.loc69_18.1: %FExtraParam.as.I.impl.F.type.598f47.1 = fn_decl @FExtraParam.as.I.impl.F.loc69_18.1 [concrete = constants.%FExtraParam.as.I.impl.F.068b9f.1] {
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
 // CHECK:STDOUT:     %b.param_patt: %pattern_type.831 = value_param_pattern %b.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -689,7 +689,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %b: bool = bind_name b, %b.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.decl.loc69_18.2: %FExtraParam.as.I.impl.F.type.44ef8c.2 = fn_decl @FExtraParam.as.I.impl.F.loc69_18.2 [concrete = constants.%FExtraParam.as.I.impl.F.424e9e.2] {} {}
+// CHECK:STDOUT:   %FExtraParam.as.I.impl.F.decl.loc69_18.2: %FExtraParam.as.I.impl.F.type.598f47.2 = fn_decl @FExtraParam.as.I.impl.F.loc69_18.2 [concrete = constants.%FExtraParam.as.I.impl.F.068b9f.2] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .F = %FExtraParam.as.I.impl.F.decl.loc69_18.1
@@ -713,7 +713,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FExtraImplicitParam.as.I.impl: %Self.ref as %I.ref {
-// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.decl.loc85_23.1: %FExtraImplicitParam.as.I.impl.F.type.e1abdd.1 = fn_decl @FExtraImplicitParam.as.I.impl.F.loc85_23.1 [concrete = constants.%FExtraImplicitParam.as.I.impl.F.6ff574.1] {
+// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.decl.loc85_23.1: %FExtraImplicitParam.as.I.impl.F.type.ae6b94.1 = fn_decl @FExtraImplicitParam.as.I.impl.F.loc85_23.1 [concrete = constants.%FExtraImplicitParam.as.I.impl.F.530aac.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.8ae = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.8ae = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -721,7 +721,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%FExtraImplicitParam [concrete = constants.%FExtraImplicitParam]
 // CHECK:STDOUT:     %self: %FExtraImplicitParam = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.decl.loc85_23.2: %FExtraImplicitParam.as.I.impl.F.type.e1abdd.2 = fn_decl @FExtraImplicitParam.as.I.impl.F.loc85_23.2 [concrete = constants.%FExtraImplicitParam.as.I.impl.F.6ff574.2] {} {}
+// CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.decl.loc85_23.2: %FExtraImplicitParam.as.I.impl.F.type.ae6b94.2 = fn_decl @FExtraImplicitParam.as.I.impl.F.loc85_23.2 [concrete = constants.%FExtraImplicitParam.as.I.impl.F.530aac.2] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .F = %FExtraImplicitParam.as.I.impl.F.decl.loc85_23.1
@@ -778,7 +778,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FMissingParam.as.J.impl: %Self.ref as %J.ref {
-// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.decl.loc117_31.1: %FMissingParam.as.J.impl.F.type.69596c.1 = fn_decl @FMissingParam.as.J.impl.F.loc117_31.1 [concrete = constants.%FMissingParam.as.J.impl.F.738f31.1] {
+// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.decl.loc117_31.1: %FMissingParam.as.J.impl.F.type.75ac8c.1 = fn_decl @FMissingParam.as.J.impl.F.loc117_31.1 [concrete = constants.%FMissingParam.as.J.impl.F.75b4fc.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.831 = return_slot_pattern [concrete]
@@ -797,7 +797,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref bool = out_param call_param1
 // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.decl.loc117_31.2: %FMissingParam.as.J.impl.F.type.69596c.2 = fn_decl @FMissingParam.as.J.impl.F.loc117_31.2 [concrete = constants.%FMissingParam.as.J.impl.F.738f31.2] {
+// CHECK:STDOUT:   %FMissingParam.as.J.impl.F.decl.loc117_31.2: %FMissingParam.as.J.impl.F.type.75ac8c.2 = fn_decl @FMissingParam.as.J.impl.F.loc117_31.2 [concrete = constants.%FMissingParam.as.J.impl.F.75b4fc.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -835,7 +835,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FMissingImplicitParam.as.J.impl: %Self.ref as %J.ref {
-// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.decl.loc130_26.1: %FMissingImplicitParam.as.J.impl.F.type.d97cef.1 = fn_decl @FMissingImplicitParam.as.J.impl.F.loc130_26.1 [concrete = constants.%FMissingImplicitParam.as.J.impl.F.01de92.1] {
+// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.decl.loc130_26.1: %FMissingImplicitParam.as.J.impl.F.type.ad873d.1 = fn_decl @FMissingImplicitParam.as.J.impl.F.loc130_26.1 [concrete = constants.%FMissingImplicitParam.as.J.impl.F.a13441.1] {
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
 // CHECK:STDOUT:     %b.param_patt: %pattern_type.831 = value_param_pattern %b.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.831 = return_slot_pattern [concrete]
@@ -854,7 +854,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref bool = out_param call_param1
 // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.decl.loc130_26.2: %FMissingImplicitParam.as.J.impl.F.type.d97cef.2 = fn_decl @FMissingImplicitParam.as.J.impl.F.loc130_26.2 [concrete = constants.%FMissingImplicitParam.as.J.impl.F.01de92.2] {
+// CHECK:STDOUT:   %FMissingImplicitParam.as.J.impl.F.decl.loc130_26.2: %FMissingImplicitParam.as.J.impl.F.type.ad873d.2 = fn_decl @FMissingImplicitParam.as.J.impl.F.loc130_26.2 [concrete = constants.%FMissingImplicitParam.as.J.impl.F.a13441.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -892,7 +892,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FMissingReturnType.as.J.impl: %Self.ref as %J.ref {
-// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.decl.loc152_30.1: %FMissingReturnType.as.J.impl.F.type.123d7a.1 = fn_decl @FMissingReturnType.as.J.impl.F.loc152_30.1 [concrete = constants.%FMissingReturnType.as.J.impl.F.c7d02d.1] {
+// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.decl.loc152_30.1: %FMissingReturnType.as.J.impl.F.type.53be08.1 = fn_decl @FMissingReturnType.as.J.impl.F.loc152_30.1 [concrete = constants.%FMissingReturnType.as.J.impl.F.6158df.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -913,7 +913,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %b: bool = bind_name b, %b.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.decl.loc152_30.2: %FMissingReturnType.as.J.impl.F.type.123d7a.2 = fn_decl @FMissingReturnType.as.J.impl.F.loc152_30.2 [concrete = constants.%FMissingReturnType.as.J.impl.F.c7d02d.2] {
+// CHECK:STDOUT:   %FMissingReturnType.as.J.impl.F.decl.loc152_30.2: %FMissingReturnType.as.J.impl.F.type.53be08.2 = fn_decl @FMissingReturnType.as.J.impl.F.loc152_30.2 [concrete = constants.%FMissingReturnType.as.J.impl.F.6158df.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -951,7 +951,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FDifferentParamType.as.J.impl: %Self.ref as %J.ref {
-// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.decl.loc171_38.1: %FDifferentParamType.as.J.impl.F.type.6b537d.1 = fn_decl @FDifferentParamType.as.J.impl.F.loc171_38.1 [concrete = constants.%FDifferentParamType.as.J.impl.F.04313a.1] {
+// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.decl.loc171_38.1: %FDifferentParamType.as.J.impl.F.type.35d377.1 = fn_decl @FDifferentParamType.as.J.impl.F.loc171_38.1 [concrete = constants.%FDifferentParamType.as.J.impl.F.8f8fbb.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.b90 = binding_pattern b [concrete]
@@ -975,7 +975,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref bool = out_param call_param2
 // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.decl.loc171_38.2: %FDifferentParamType.as.J.impl.F.type.6b537d.2 = fn_decl @FDifferentParamType.as.J.impl.F.loc171_38.2 [concrete = constants.%FDifferentParamType.as.J.impl.F.04313a.2] {
+// CHECK:STDOUT:   %FDifferentParamType.as.J.impl.F.decl.loc171_38.2: %FDifferentParamType.as.J.impl.F.type.35d377.2 = fn_decl @FDifferentParamType.as.J.impl.F.loc171_38.2 [concrete = constants.%FDifferentParamType.as.J.impl.F.8f8fbb.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -1013,7 +1013,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FDifferentImplicitParamType.as.J.impl: %Self.ref as %J.ref {
-// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.1: %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.1 = fn_decl @FDifferentImplicitParamType.as.J.impl.F.loc184_38.1 [concrete = constants.%FDifferentImplicitParamType.as.J.impl.F.886f70.1] {
+// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.1: %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.1 = fn_decl @FDifferentImplicitParamType.as.J.impl.F.loc184_38.1 [concrete = constants.%FDifferentImplicitParamType.as.J.impl.F.612f41.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.9cc = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.9cc = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -1037,7 +1037,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref bool = out_param call_param2
 // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.2: %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.2 = fn_decl @FDifferentImplicitParamType.as.J.impl.F.loc184_38.2 [concrete = constants.%FDifferentImplicitParamType.as.J.impl.F.886f70.2] {
+// CHECK:STDOUT:   %FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.2: %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.2 = fn_decl @FDifferentImplicitParamType.as.J.impl.F.loc184_38.2 [concrete = constants.%FDifferentImplicitParamType.as.J.impl.F.612f41.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -1075,7 +1075,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @FDifferentReturnType.as.J.impl: %Self.ref as %J.ref {
-// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.decl.loc200_38.1: %FDifferentReturnType.as.J.impl.F.type.d3b58f.1 = fn_decl @FDifferentReturnType.as.J.impl.F.loc200_38.1 [concrete = constants.%FDifferentReturnType.as.J.impl.F.be86c9.1] {
+// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.decl.loc200_38.1: %FDifferentReturnType.as.J.impl.F.type.a69d68.1 = fn_decl @FDifferentReturnType.as.J.impl.F.loc200_38.1 [concrete = constants.%FDifferentReturnType.as.J.impl.F.25e324.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -1101,7 +1101,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref %FDifferentReturnType = out_param call_param2
 // CHECK:STDOUT:     %return: ref %FDifferentReturnType = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.decl.loc200_38.2: %FDifferentReturnType.as.J.impl.F.type.d3b58f.2 = fn_decl @FDifferentReturnType.as.J.impl.F.loc200_38.2 [concrete = constants.%FDifferentReturnType.as.J.impl.F.be86c9.2] {
+// CHECK:STDOUT:   %FDifferentReturnType.as.J.impl.F.decl.loc200_38.2: %FDifferentReturnType.as.J.impl.F.type.a69d68.2 = fn_decl @FDifferentReturnType.as.J.impl.F.loc200_38.2 [concrete = constants.%FDifferentReturnType.as.J.impl.F.25e324.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.831 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.831 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %b.patt: %pattern_type.831 = binding_pattern b [concrete]
@@ -1139,7 +1139,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @SelfNestedBadParam.as.SelfNested.impl: %Self.ref as %SelfNested.ref {
-// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.1: %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.1 = fn_decl @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.1 [concrete = constants.%SelfNestedBadParam.as.SelfNested.impl.F.fa8d04.1] {
+// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.1: %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.1 = fn_decl @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.1 [concrete = constants.%SelfNestedBadParam.as.SelfNested.impl.F.e128d3.1] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.714 = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.714 = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.1f1 = return_slot_pattern [concrete]
@@ -1164,7 +1164,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref %array_type.a41 = out_param call_param1
 // CHECK:STDOUT:     %return: ref %array_type.a41 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.2: %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.2 = fn_decl @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.2 [concrete = constants.%SelfNestedBadParam.as.SelfNested.impl.F.fa8d04.2] {
+// CHECK:STDOUT:   %SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.2: %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.2 = fn_decl @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.2 [concrete = constants.%SelfNestedBadParam.as.SelfNested.impl.F.e128d3.2] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.a5c = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.a5c = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.1f1 = return_slot_pattern [concrete]
@@ -1199,7 +1199,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @SelfNestedBadReturnType.as.SelfNested.impl: %Self.ref as %SelfNested.ref {
-// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.1: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.1 = fn_decl @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.1 [concrete = constants.%SelfNestedBadReturnType.as.SelfNested.impl.F.0bc78a.1] {
+// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.1: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.1 = fn_decl @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.1 [concrete = constants.%SelfNestedBadReturnType.as.SelfNested.impl.F.cb45e1.1] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.23f = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.23f = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.1f1 = return_slot_pattern [concrete]
@@ -1223,7 +1223,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref %array_type.a41 = out_param call_param1
 // CHECK:STDOUT:     %return: ref %array_type.a41 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.2: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.2 = fn_decl @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.2 [concrete = constants.%SelfNestedBadReturnType.as.SelfNested.impl.F.0bc78a.2] {
+// CHECK:STDOUT:   %SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.2: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.2 = fn_decl @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.2 [concrete = constants.%SelfNestedBadReturnType.as.SelfNested.impl.F.cb45e1.2] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.23f = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.23f = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.f56 = return_slot_pattern [concrete]
@@ -1264,11 +1264,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (<error>), @NoF.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.901]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.407]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%NoF [concrete = constants.%NoF]
 // CHECK:STDOUT:   impl_decl @NoF.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@NoF.as.Destroy.impl.%NoF.as.Destroy.impl.Op.decl), @NoF.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9b3]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.38d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1283,11 +1283,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (<error>), @FNotFunction.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.44e]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.464]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FNotFunction [concrete = constants.%FNotFunction]
 // CHECK:STDOUT:   impl_decl @FNotFunction.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FNotFunction.as.Destroy.impl.%FNotFunction.as.Destroy.impl.Op.decl), @FNotFunction.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.f9b]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b5b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1304,11 +1304,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (<error>), @FAlias.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.c80]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.2d7]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FAlias [concrete = constants.%FAlias]
 // CHECK:STDOUT:   impl_decl @FAlias.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FAlias.as.Destroy.impl.%FAlias.as.Destroy.impl.Op.decl), @FAlias.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.740]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.677]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1324,11 +1324,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@FExtraParam.as.I.impl.%FExtraParam.as.I.impl.F.decl.loc69_18.2), @FExtraParam.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.1f3]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.8ae]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FExtraParam [concrete = constants.%FExtraParam]
 // CHECK:STDOUT:   impl_decl @FExtraParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FExtraParam.as.Destroy.impl.%FExtraParam.as.Destroy.impl.Op.decl), @FExtraParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.44a]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8f5]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1343,11 +1343,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@FExtraImplicitParam.as.I.impl.%FExtraImplicitParam.as.I.impl.F.decl.loc85_23.2), @FExtraImplicitParam.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.a7b]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.ecd]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FExtraImplicitParam [concrete = constants.%FExtraImplicitParam]
 // CHECK:STDOUT:   impl_decl @FExtraImplicitParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FExtraImplicitParam.as.Destroy.impl.%FExtraImplicitParam.as.Destroy.impl.Op.decl), @FExtraImplicitParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.a05]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.64d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1362,11 +1362,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (<error>), @FExtraReturnType.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.59a]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.9f6]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FExtraReturnType [concrete = constants.%FExtraReturnType]
 // CHECK:STDOUT:   impl_decl @FExtraReturnType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FExtraReturnType.as.Destroy.impl.%FExtraReturnType.as.Destroy.impl.Op.decl), @FExtraReturnType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.3ea]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.332]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1381,11 +1381,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (@FMissingParam.as.J.impl.%FMissingParam.as.J.impl.F.decl.loc117_31.2), @FMissingParam.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.4e9]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.ffa]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FMissingParam [concrete = constants.%FMissingParam]
 // CHECK:STDOUT:   impl_decl @FMissingParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FMissingParam.as.Destroy.impl.%FMissingParam.as.Destroy.impl.Op.decl), @FMissingParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.672]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.e77]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1400,11 +1400,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (@FMissingImplicitParam.as.J.impl.%FMissingImplicitParam.as.J.impl.F.decl.loc130_26.2), @FMissingImplicitParam.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.841]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.13b]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FMissingImplicitParam [concrete = constants.%FMissingImplicitParam]
 // CHECK:STDOUT:   impl_decl @FMissingImplicitParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FMissingImplicitParam.as.Destroy.impl.%FMissingImplicitParam.as.Destroy.impl.Op.decl), @FMissingImplicitParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ae6]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.da8]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1419,11 +1419,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (@FMissingReturnType.as.J.impl.%FMissingReturnType.as.J.impl.F.decl.loc152_30.2), @FMissingReturnType.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.e75]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.262]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FMissingReturnType [concrete = constants.%FMissingReturnType]
 // CHECK:STDOUT:   impl_decl @FMissingReturnType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FMissingReturnType.as.Destroy.impl.%FMissingReturnType.as.Destroy.impl.Op.decl), @FMissingReturnType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.8d8]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.281]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1438,11 +1438,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (@FDifferentParamType.as.J.impl.%FDifferentParamType.as.J.impl.F.decl.loc171_38.2), @FDifferentParamType.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.cbe]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.b8e]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FDifferentParamType [concrete = constants.%FDifferentParamType]
 // CHECK:STDOUT:   impl_decl @FDifferentParamType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FDifferentParamType.as.Destroy.impl.%FDifferentParamType.as.Destroy.impl.Op.decl), @FDifferentParamType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.443]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6f0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1457,11 +1457,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (@FDifferentImplicitParamType.as.J.impl.%FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.2), @FDifferentImplicitParamType.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.af2]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.699]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FDifferentImplicitParamType [concrete = constants.%FDifferentImplicitParamType]
 // CHECK:STDOUT:   impl_decl @FDifferentImplicitParamType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FDifferentImplicitParamType.as.Destroy.impl.%FDifferentImplicitParamType.as.Destroy.impl.Op.decl), @FDifferentImplicitParamType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c2a]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7bb]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1476,11 +1476,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (@FDifferentReturnType.as.J.impl.%FDifferentReturnType.as.J.impl.F.decl.loc200_38.2), @FDifferentReturnType.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.bc1]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table [concrete = constants.%J.impl_witness.006]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%FDifferentReturnType [concrete = constants.%FDifferentReturnType]
 // CHECK:STDOUT:   impl_decl @FDifferentReturnType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@FDifferentReturnType.as.Destroy.impl.%FDifferentReturnType.as.Destroy.impl.Op.decl), @FDifferentReturnType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6d2]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.44b]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1495,11 +1495,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %SelfNested.ref: type = name_ref SelfNested, file.%SelfNested.decl [concrete = constants.%SelfNested.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %SelfNested.impl_witness_table = impl_witness_table (@SelfNestedBadParam.as.SelfNested.impl.%SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.2), @SelfNestedBadParam.as.SelfNested.impl [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness: <witness> = impl_witness %SelfNested.impl_witness_table [concrete = constants.%SelfNested.impl_witness.e31]
+// CHECK:STDOUT:   %SelfNested.impl_witness: <witness> = impl_witness %SelfNested.impl_witness_table [concrete = constants.%SelfNested.impl_witness.60e]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SelfNestedBadParam [concrete = constants.%SelfNestedBadParam]
 // CHECK:STDOUT:   impl_decl @SelfNestedBadParam.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SelfNestedBadParam.as.Destroy.impl.%SelfNestedBadParam.as.Destroy.impl.Op.decl), @SelfNestedBadParam.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.908]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.93c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1515,11 +1515,11 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %SelfNested.ref: type = name_ref SelfNested, file.%SelfNested.decl [concrete = constants.%SelfNested.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %SelfNested.impl_witness_table = impl_witness_table (@SelfNestedBadReturnType.as.SelfNested.impl.%SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.2), @SelfNestedBadReturnType.as.SelfNested.impl [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness: <witness> = impl_witness %SelfNested.impl_witness_table [concrete = constants.%SelfNested.impl_witness.d5e]
+// CHECK:STDOUT:   %SelfNested.impl_witness: <witness> = impl_witness %SelfNested.impl_witness_table [concrete = constants.%SelfNested.impl_witness.a8d]
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SelfNestedBadReturnType [concrete = constants.%SelfNestedBadReturnType]
 // CHECK:STDOUT:   impl_decl @SelfNestedBadReturnType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SelfNestedBadReturnType.as.Destroy.impl.%SelfNestedBadReturnType.as.Destroy.impl.Op.decl), @SelfNestedBadReturnType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9f5]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.750]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1546,7 +1546,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FExtraParam.as.I.impl.F.loc69_18.2() [thunk @FExtraParam.as.I.impl.%FExtraParam.as.I.impl.F.decl.loc69_18.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FExtraParam.as.I.impl.F.type.44ef8c.1 = name_ref F, @FExtraParam.as.I.impl.%FExtraParam.as.I.impl.F.decl.loc69_18.1 [concrete = constants.%FExtraParam.as.I.impl.F.424e9e.1]
+// CHECK:STDOUT:   %F.ref: %FExtraParam.as.I.impl.F.type.598f47.1 = name_ref F, @FExtraParam.as.I.impl.%FExtraParam.as.I.impl.F.decl.loc69_18.1 [concrete = constants.%FExtraParam.as.I.impl.F.068b9f.1]
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1556,7 +1556,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FExtraImplicitParam.as.I.impl.F.loc85_23.2() [thunk @FExtraImplicitParam.as.I.impl.%FExtraImplicitParam.as.I.impl.F.decl.loc85_23.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FExtraImplicitParam.as.I.impl.F.type.e1abdd.1 = name_ref F, @FExtraImplicitParam.as.I.impl.%FExtraImplicitParam.as.I.impl.F.decl.loc85_23.1 [concrete = constants.%FExtraImplicitParam.as.I.impl.F.6ff574.1]
+// CHECK:STDOUT:   %F.ref: %FExtraImplicitParam.as.I.impl.F.type.ae6b94.1 = name_ref F, @FExtraImplicitParam.as.I.impl.%FExtraImplicitParam.as.I.impl.F.decl.loc85_23.1 [concrete = constants.%FExtraImplicitParam.as.I.impl.F.530aac.1]
 // CHECK:STDOUT:   %FExtraImplicitParam.as.I.impl.F.call: init %empty_tuple.type = call %F.ref(<error>)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -1575,7 +1575,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FMissingParam.as.J.impl.F.loc117_31.2(%self.param: bool, %b.param: bool) -> bool [thunk @FMissingParam.as.J.impl.%FMissingParam.as.J.impl.F.decl.loc117_31.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FMissingParam.as.J.impl.F.type.69596c.1 = name_ref F, @FMissingParam.as.J.impl.%FMissingParam.as.J.impl.F.decl.loc117_31.1 [concrete = constants.%FMissingParam.as.J.impl.F.738f31.1]
+// CHECK:STDOUT:   %F.ref: %FMissingParam.as.J.impl.F.type.75ac8c.1 = name_ref F, @FMissingParam.as.J.impl.%FMissingParam.as.J.impl.F.decl.loc117_31.1 [concrete = constants.%FMissingParam.as.J.impl.F.75b4fc.1]
 // CHECK:STDOUT:   %self.ref: bool = name_ref self, %self.param
 // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b.param
 // CHECK:STDOUT:   %return.ref: ref bool = name_ref <return slot>, %return.param
@@ -1589,7 +1589,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FMissingImplicitParam.as.J.impl.F.loc130_26.2(%self.param: bool, %b.param: bool) -> bool [thunk @FMissingImplicitParam.as.J.impl.%FMissingImplicitParam.as.J.impl.F.decl.loc130_26.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FMissingImplicitParam.as.J.impl.F.type.d97cef.1 = name_ref F, @FMissingImplicitParam.as.J.impl.%FMissingImplicitParam.as.J.impl.F.decl.loc130_26.1 [concrete = constants.%FMissingImplicitParam.as.J.impl.F.01de92.1]
+// CHECK:STDOUT:   %F.ref: %FMissingImplicitParam.as.J.impl.F.type.ad873d.1 = name_ref F, @FMissingImplicitParam.as.J.impl.%FMissingImplicitParam.as.J.impl.F.decl.loc130_26.1 [concrete = constants.%FMissingImplicitParam.as.J.impl.F.a13441.1]
 // CHECK:STDOUT:   %self.ref: bool = name_ref self, %self.param
 // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b.param
 // CHECK:STDOUT:   %return.ref: ref bool = name_ref <return slot>, %return.param
@@ -1605,7 +1605,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FMissingReturnType.as.J.impl.F.loc152_30.2(%self.param: bool, %b.param: bool) -> bool [thunk @FMissingReturnType.as.J.impl.%FMissingReturnType.as.J.impl.F.decl.loc152_30.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FMissingReturnType.as.J.impl.F.type.123d7a.1 = name_ref F, @FMissingReturnType.as.J.impl.%FMissingReturnType.as.J.impl.F.decl.loc152_30.1 [concrete = constants.%FMissingReturnType.as.J.impl.F.c7d02d.1]
+// CHECK:STDOUT:   %F.ref: %FMissingReturnType.as.J.impl.F.type.53be08.1 = name_ref F, @FMissingReturnType.as.J.impl.%FMissingReturnType.as.J.impl.F.decl.loc152_30.1 [concrete = constants.%FMissingReturnType.as.J.impl.F.6158df.1]
 // CHECK:STDOUT:   %self.ref: bool = name_ref self, %self.param
 // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b.param
 // CHECK:STDOUT:   %return.ref: ref bool = name_ref <return slot>, %return.param
@@ -1621,7 +1621,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FDifferentParamType.as.J.impl.F.loc171_38.2(%self.param: bool, %b.param: bool) -> bool [thunk @FDifferentParamType.as.J.impl.%FDifferentParamType.as.J.impl.F.decl.loc171_38.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FDifferentParamType.as.J.impl.F.type.6b537d.1 = name_ref F, @FDifferentParamType.as.J.impl.%FDifferentParamType.as.J.impl.F.decl.loc171_38.1 [concrete = constants.%FDifferentParamType.as.J.impl.F.04313a.1]
+// CHECK:STDOUT:   %F.ref: %FDifferentParamType.as.J.impl.F.type.35d377.1 = name_ref F, @FDifferentParamType.as.J.impl.%FDifferentParamType.as.J.impl.F.decl.loc171_38.1 [concrete = constants.%FDifferentParamType.as.J.impl.F.8f8fbb.1]
 // CHECK:STDOUT:   %self.ref: bool = name_ref self, %self.param
 // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b.param
 // CHECK:STDOUT:   %return.ref: ref bool = name_ref <return slot>, %return.param
@@ -1639,7 +1639,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FDifferentImplicitParamType.as.J.impl.F.loc184_38.2(%self.param: bool, %b.param: bool) -> bool [thunk @FDifferentImplicitParamType.as.J.impl.%FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FDifferentImplicitParamType.as.J.impl.F.type.d6232a.1 = name_ref F, @FDifferentImplicitParamType.as.J.impl.%FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.1 [concrete = constants.%FDifferentImplicitParamType.as.J.impl.F.886f70.1]
+// CHECK:STDOUT:   %F.ref: %FDifferentImplicitParamType.as.J.impl.F.type.559c1e.1 = name_ref F, @FDifferentImplicitParamType.as.J.impl.%FDifferentImplicitParamType.as.J.impl.F.decl.loc184_38.1 [concrete = constants.%FDifferentImplicitParamType.as.J.impl.F.612f41.1]
 // CHECK:STDOUT:   %self.ref: bool = name_ref self, %self.param
 // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b.param
 // CHECK:STDOUT:   %return.ref: ref bool = name_ref <return slot>, %return.param
@@ -1657,7 +1657,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @FDifferentReturnType.as.J.impl.F.loc200_38.2(%self.param: bool, %b.param: bool) -> bool [thunk @FDifferentReturnType.as.J.impl.%FDifferentReturnType.as.J.impl.F.decl.loc200_38.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %FDifferentReturnType.as.J.impl.F.type.d3b58f.1 = name_ref F, @FDifferentReturnType.as.J.impl.%FDifferentReturnType.as.J.impl.F.decl.loc200_38.1 [concrete = constants.%FDifferentReturnType.as.J.impl.F.be86c9.1]
+// CHECK:STDOUT:   %F.ref: %FDifferentReturnType.as.J.impl.F.type.a69d68.1 = name_ref F, @FDifferentReturnType.as.J.impl.%FDifferentReturnType.as.J.impl.F.decl.loc200_38.1 [concrete = constants.%FDifferentReturnType.as.J.impl.F.25e324.1]
 // CHECK:STDOUT:   %self.ref: bool = name_ref self, %self.param
 // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b.param
 // CHECK:STDOUT:   %return.ref: ref bool = name_ref <return slot>, %return.param
@@ -1671,23 +1671,23 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: fn @FDifferentReturnType.as.Destroy.impl.Op(%self.param: %ptr.954) = "no_op";
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @SelfNested.F(@SelfNested.%Self: %SelfNested.type) {
-// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.2ff)]
-// CHECK:STDOUT:   %Self.as_type.loc211_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:   %ptr.loc211_16.1: type = ptr_type %Self.as_type.loc211_16.1 [symbolic = %ptr.loc211_16.1 (constants.%ptr.e87)]
-// CHECK:STDOUT:   %struct_type.x.y.loc211_37.1: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc211_16.1 (%Self.as_type.e1e), .y: %i32} [symbolic = %struct_type.x.y.loc211_37.1 (constants.%struct_type.x.y.81e)]
-// CHECK:STDOUT:   %tuple.type: type = tuple_type (%ptr.loc211_16.1, %struct_type.x.y.loc211_37.1) [symbolic = %tuple.type (constants.%tuple.type.229)]
-// CHECK:STDOUT:   %pattern_type.loc211_8: type = pattern_type %tuple.type [symbolic = %pattern_type.loc211_8 (constants.%pattern_type.ced)]
-// CHECK:STDOUT:   %array_type.loc211_57.1: type = array_type constants.%int_4, %Self.as_type.loc211_16.1 [symbolic = %array_type.loc211_57.1 (constants.%array_type.873)]
-// CHECK:STDOUT:   %pattern_type.loc211_41: type = pattern_type %array_type.loc211_57.1 [symbolic = %pattern_type.loc211_41 (constants.%pattern_type.c7e)]
+// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.478)]
+// CHECK:STDOUT:   %Self.as_type.loc211_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc211_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:   %ptr.loc211_16.1: type = ptr_type %Self.as_type.loc211_16.1 [symbolic = %ptr.loc211_16.1 (constants.%ptr.e4e)]
+// CHECK:STDOUT:   %struct_type.x.y.loc211_37.1: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc211_16.1 (%Self.as_type.27a), .y: %i32} [symbolic = %struct_type.x.y.loc211_37.1 (constants.%struct_type.x.y.d11)]
+// CHECK:STDOUT:   %tuple.type: type = tuple_type (%ptr.loc211_16.1, %struct_type.x.y.loc211_37.1) [symbolic = %tuple.type (constants.%tuple.type.cea)]
+// CHECK:STDOUT:   %pattern_type.loc211_8: type = pattern_type %tuple.type [symbolic = %pattern_type.loc211_8 (constants.%pattern_type.7ef)]
+// CHECK:STDOUT:   %array_type.loc211_57.1: type = array_type constants.%int_4, %Self.as_type.loc211_16.1 [symbolic = %array_type.loc211_57.1 (constants.%array_type.6bb)]
+// CHECK:STDOUT:   %pattern_type.loc211_41: type = pattern_type %array_type.loc211_57.1 [symbolic = %pattern_type.loc211_41 (constants.%pattern_type.627)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%x.param: @SelfNested.F.%tuple.type (%tuple.type.229)) -> @SelfNested.F.%array_type.loc211_57.1 (%array_type.873);
+// CHECK:STDOUT:   fn(%x.param: @SelfNested.F.%tuple.type (%tuple.type.cea)) -> @SelfNested.F.%array_type.loc211_57.1 (%array_type.6bb);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.1(%x.param: %tuple.type.a7d) -> %return.param: %array_type.a41;
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @SelfNestedBadParam.as.SelfNested.impl.F.loc223_87.2(%x.param: %tuple.type.9c9) -> %return.param: %array_type.a41 [thunk @SelfNestedBadParam.as.SelfNested.impl.%SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %SelfNestedBadParam.as.SelfNested.impl.F.type.f90165.1 = name_ref F, @SelfNestedBadParam.as.SelfNested.impl.%SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.1 [concrete = constants.%SelfNestedBadParam.as.SelfNested.impl.F.fa8d04.1]
+// CHECK:STDOUT:   %F.ref: %SelfNestedBadParam.as.SelfNested.impl.F.type.3143d2.1 = name_ref F, @SelfNestedBadParam.as.SelfNested.impl.%SelfNestedBadParam.as.SelfNested.impl.F.decl.loc223_87.1 [concrete = constants.%SelfNestedBadParam.as.SelfNested.impl.F.e128d3.1]
 // CHECK:STDOUT:   %x.ref: %tuple.type.9c9 = name_ref x, %x.param
 // CHECK:STDOUT:   %return.ref: ref %array_type.a41 = name_ref <return slot>, %return.param
 // CHECK:STDOUT:   %.loc211_41: ref %array_type.a41 = splice_block %return {}
@@ -1705,7 +1705,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @SelfNestedBadReturnType.as.SelfNested.impl.F.loc239_112.2(%x.param: %tuple.type.eb9) -> %return.param: %array_type.126 [thunk @SelfNestedBadReturnType.as.SelfNested.impl.%SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.0e7d1d.1 = name_ref F, @SelfNestedBadReturnType.as.SelfNested.impl.%SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.1 [concrete = constants.%SelfNestedBadReturnType.as.SelfNested.impl.F.0bc78a.1]
+// CHECK:STDOUT:   %F.ref: %SelfNestedBadReturnType.as.SelfNested.impl.F.type.5aae33.1 = name_ref F, @SelfNestedBadReturnType.as.SelfNested.impl.%SelfNestedBadReturnType.as.SelfNested.impl.F.decl.loc239_112.1 [concrete = constants.%SelfNestedBadReturnType.as.SelfNested.impl.F.cb45e1.1]
 // CHECK:STDOUT:   %x.ref: %tuple.type.eb9 = name_ref x, %x.param
 // CHECK:STDOUT:   %return.ref: ref %array_type.126 = name_ref <return slot>, %return.param
 // CHECK:STDOUT:   %.loc239_112.1: ref %array_type.a41 = temporary_storage
@@ -1716,41 +1716,41 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @SelfNestedBadReturnType.as.Destroy.impl.Op(%self.param: %ptr.612) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.fa4) {}
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.56d) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.ee5) {}
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.e7d) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.d5c) {}
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.1a5) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.94c) {}
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.383) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.e7e) {}
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.7cd) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.974) {}
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.eb2) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.37e) {}
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.aff) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.bf1) {}
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.ceb) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.67f) {}
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.8af) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @SelfNested.F(constants.%Self.2ff) {
-// CHECK:STDOUT:   %Self => constants.%Self.2ff
-// CHECK:STDOUT:   %Self.as_type.loc211_16.1 => constants.%Self.as_type.e1e
-// CHECK:STDOUT:   %ptr.loc211_16.1 => constants.%ptr.e87
-// CHECK:STDOUT:   %struct_type.x.y.loc211_37.1 => constants.%struct_type.x.y.81e
-// CHECK:STDOUT:   %tuple.type => constants.%tuple.type.229
-// CHECK:STDOUT:   %pattern_type.loc211_8 => constants.%pattern_type.ced
-// CHECK:STDOUT:   %array_type.loc211_57.1 => constants.%array_type.873
-// CHECK:STDOUT:   %pattern_type.loc211_41 => constants.%pattern_type.c7e
+// CHECK:STDOUT: specific @SelfNested.F(constants.%Self.478) {
+// CHECK:STDOUT:   %Self => constants.%Self.478
+// CHECK:STDOUT:   %Self.as_type.loc211_16.1 => constants.%Self.as_type.27a
+// CHECK:STDOUT:   %ptr.loc211_16.1 => constants.%ptr.e4e
+// CHECK:STDOUT:   %struct_type.x.y.loc211_37.1 => constants.%struct_type.x.y.d11
+// CHECK:STDOUT:   %tuple.type => constants.%tuple.type.cea
+// CHECK:STDOUT:   %pattern_type.loc211_8 => constants.%pattern_type.7ef
+// CHECK:STDOUT:   %array_type.loc211_57.1 => constants.%array_type.6bb
+// CHECK:STDOUT:   %pattern_type.loc211_41 => constants.%pattern_type.627
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.608) {
-// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.608
+// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.362) {
+// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.362
 // CHECK:STDOUT:   %Self.as_type.loc211_16.1 => constants.%SelfNestedBadParam
 // CHECK:STDOUT:   %ptr.loc211_16.1 => constants.%ptr.4cd
 // CHECK:STDOUT:   %struct_type.x.y.loc211_37.1 => constants.%struct_type.x.y.a89
@@ -1760,8 +1760,8 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %pattern_type.loc211_41 => constants.%pattern_type.1f1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.766) {
-// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.766
+// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.470) {
+// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.470
 // CHECK:STDOUT:   %Self.as_type.loc211_16.1 => constants.%SelfNestedBadReturnType
 // CHECK:STDOUT:   %ptr.loc211_16.1 => constants.%ptr.612
 // CHECK:STDOUT:   %struct_type.x.y.loc211_37.1 => constants.%struct_type.x.y.ac5
diff --git a/toolchain/check/testdata/impl/fail_impl_bad_type.carbon b/toolchain/check/testdata/impl/fail_impl_bad_type.carbon
index af77c83feac7..cf4c787b2670 100644
--- a/toolchain/check/testdata/impl/fail_impl_bad_type.carbon
+++ b/toolchain/check/testdata/impl/fail_impl_bad_type.carbon
@@ -27,7 +27,7 @@ impl true as I {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
@@ -57,7 +57,7 @@ impl true as I {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/fail_redefinition.carbon b/toolchain/check/testdata/impl/fail_redefinition.carbon
index 6e832cfc2c22..7a50e19952a3 100644
--- a/toolchain/check/testdata/impl/fail_redefinition.carbon
+++ b/toolchain/check/testdata/impl/fail_redefinition.carbon
@@ -53,14 +53,14 @@ impl i32 as I {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
-// CHECK:STDOUT:   impl_decl @i32.as.I.impl.a9ac64.1 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @i32.as.I.impl.5e2dff.1 [concrete] {} {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @i32.as.I.impl.a9ac64.1 [concrete]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @i32.as.I.impl.5e2dff.1 [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
-// CHECK:STDOUT:   impl_decl @i32.as.I.impl.a9ac64.2 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @i32.as.I.impl.5e2dff.2 [concrete] {} {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
@@ -75,12 +75,12 @@ impl i32 as I {}
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @i32.as.I.impl.a9ac64.1: %i32 as %I.ref {
+// CHECK:STDOUT: impl @i32.as.I.impl.5e2dff.1: %i32 as %I.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @i32.as.I.impl.a9ac64.2: %i32 as %I.ref {
+// CHECK:STDOUT: impl @i32.as.I.impl.5e2dff.2: %i32 as %I.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = <error>
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon b/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon
index 2a755dc89d15..6a95bb2c474c 100644
--- a/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon
+++ b/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon
@@ -57,7 +57,7 @@ impl i32 as I {
 // CHECK:STDOUT:   %C.b36: type = class_type @C, @C(%T, %X) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e7a: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.5d3: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %X) [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %ptr.555: type = ptr_type %C.b36 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7e5: type = pattern_type %ptr.555 [symbolic]
@@ -66,37 +66,37 @@ impl i32 as I {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
-// CHECK:STDOUT:   %C.dbb: type = class_type @C, @C(%I.type, %Self.826) [symbolic]
-// CHECK:STDOUT:   %pattern_type.4fb: type = pattern_type %C.dbb [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %C.4cb: type = class_type @C, @C(%I.type, %Self.ce4) [symbolic]
+// CHECK:STDOUT:   %pattern_type.354: type = pattern_type %C.4cb [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.82e: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.impl_witness.c21: <witness> = impl_witness file.%I.impl_witness_table.loc28 [concrete]
-// CHECK:STDOUT:   %I.facet.e8a: %I.type = facet_value bool, (%I.impl_witness.c21) [concrete]
-// CHECK:STDOUT:   %C.7db: type = class_type @C, @C(%I.type, %I.facet.e8a) [concrete]
-// CHECK:STDOUT:   %pattern_type.225: type = pattern_type %C.7db [concrete]
+// CHECK:STDOUT:   %I.impl_witness.cd6: <witness> = impl_witness file.%I.impl_witness_table.loc28 [concrete]
+// CHECK:STDOUT:   %I.facet.898: %I.type = facet_value bool, (%I.impl_witness.cd6) [concrete]
+// CHECK:STDOUT:   %C.6d9: type = class_type @C, @C(%I.type, %I.facet.898) [concrete]
+// CHECK:STDOUT:   %pattern_type.928: type = pattern_type %C.6d9 [concrete]
 // CHECK:STDOUT:   %bool.as.I.impl.F.type: type = fn_type @bool.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %bool.as.I.impl.F: %bool.as.I.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %I.impl_witness.863: <witness> = impl_witness file.%I.impl_witness_table.loc35 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.ce4: <witness> = impl_witness file.%I.impl_witness_table.loc35 [concrete]
 // CHECK:STDOUT:   %C.6fb: type = class_type @C, @C(type, %i32) [concrete]
 // CHECK:STDOUT:   %pattern_type.52b: type = pattern_type %C.6fb [concrete]
-// CHECK:STDOUT:   %i32.as.I.impl.F.type.066a53.1: type = fn_type @i32.as.I.impl.F.loc43_18.1 [concrete]
-// CHECK:STDOUT:   %i32.as.I.impl.F.9ec58f.1: %i32.as.I.impl.F.type.066a53.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.118: %I.type = facet_value %i32, (%I.impl_witness.863) [concrete]
-// CHECK:STDOUT:   %C.d88: type = class_type @C, @C(%I.type, %I.facet.118) [concrete]
-// CHECK:STDOUT:   %pattern_type.c65: type = pattern_type %C.d88 [concrete]
-// CHECK:STDOUT:   %i32.as.I.impl.F.type.066a53.2: type = fn_type @i32.as.I.impl.F.loc43_18.2 [concrete]
-// CHECK:STDOUT:   %i32.as.I.impl.F.9ec58f.2: %i32.as.I.impl.F.type.066a53.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %complete_type.acb: <witness> = complete_type_witness %I.type [concrete]
+// CHECK:STDOUT:   %i32.as.I.impl.F.type.7b2a08.1: type = fn_type @i32.as.I.impl.F.loc43_18.1 [concrete]
+// CHECK:STDOUT:   %i32.as.I.impl.F.4105f2.1: %i32.as.I.impl.F.type.7b2a08.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %I.facet.274: %I.type = facet_value %i32, (%I.impl_witness.ce4) [concrete]
+// CHECK:STDOUT:   %C.70c: type = class_type @C, @C(%I.type, %I.facet.274) [concrete]
+// CHECK:STDOUT:   %pattern_type.f5b: type = pattern_type %C.70c [concrete]
+// CHECK:STDOUT:   %i32.as.I.impl.F.type.7b2a08.2: type = fn_type @i32.as.I.impl.F.loc43_18.2 [concrete]
+// CHECK:STDOUT:   %i32.as.I.impl.F.4105f2.2: %i32.as.I.impl.F.type.7b2a08.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %complete_type.2f9: <witness> = complete_type_witness %I.type [concrete]
 // CHECK:STDOUT:   %complete_type.473: <witness> = complete_type_witness type [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
@@ -144,29 +144,29 @@ impl i32 as I {
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table.loc28 = impl_witness_table (@bool.as.I.impl.%bool.as.I.impl.F.decl), @bool.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc28: <witness> = impl_witness %I.impl_witness_table.loc28 [concrete = constants.%I.impl_witness.c21]
+// CHECK:STDOUT:   %I.impl_witness.loc28: <witness> = impl_witness %I.impl_witness_table.loc28 [concrete = constants.%I.impl_witness.cd6]
 // CHECK:STDOUT:   impl_decl @i32.as.I.impl [concrete] {} {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table.loc35 = impl_witness_table (@i32.as.I.impl.%i32.as.I.impl.F.decl.loc43_18.2), @i32.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc35: <witness> = impl_witness %I.impl_witness_table.loc35 [concrete = constants.%I.impl_witness.863]
+// CHECK:STDOUT:   %I.impl_witness.loc35: <witness> = impl_witness %I.impl_witness_table.loc35 [concrete = constants.%I.impl_witness.ce4]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %c.patt: @I.F.%pattern_type (%pattern_type.4fb) = binding_pattern c [concrete]
-// CHECK:STDOUT:     %c.param_patt: @I.F.%pattern_type (%pattern_type.4fb) = value_param_pattern %c.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %c.patt: @I.F.%pattern_type (%pattern_type.354) = binding_pattern c [concrete]
+// CHECK:STDOUT:     %c.param_patt: @I.F.%pattern_type (%pattern_type.354) = value_param_pattern %c.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %c.param: @I.F.%C.loc25_17.1 (%C.dbb) = value_param call_param0
-// CHECK:STDOUT:     %.loc25: type = splice_block %C.loc25_17.2 [symbolic = %C.loc25_17.1 (constants.%C.dbb)] {
+// CHECK:STDOUT:     %c.param: @I.F.%C.loc25_17.1 (%C.4cb) = value_param call_param0
+// CHECK:STDOUT:     %.loc25: type = splice_block %C.loc25_17.2 [symbolic = %C.loc25_17.1 (constants.%C.4cb)] {
 // CHECK:STDOUT:       %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %C.loc25_17.2: type = class_type @C, @C(constants.%I.type, constants.%Self.826) [symbolic = %C.loc25_17.1 (constants.%C.dbb)]
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %C.loc25_17.2: type = class_type @C, @C(constants.%I.type, constants.%Self.ce4) [symbolic = %C.loc25_17.1 (constants.%C.4cb)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %c: @I.F.%C.loc25_17.1 (%C.dbb) = bind_name c, %c.param
+// CHECK:STDOUT:     %c: @I.F.%C.loc25_17.1 (%C.4cb) = bind_name c, %c.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0.82e]
 // CHECK:STDOUT:
@@ -181,7 +181,7 @@ impl i32 as I {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %X: @C.as.Destroy.impl.%T (%T) = bind_symbolic_name X, 1 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T, %X) [symbolic = %C (constants.%C.b36)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.e7a)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5d3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T, %X) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -209,19 +209,19 @@ impl i32 as I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @bool.as.I.impl: %.loc28_6.2 as %I.ref {
 // CHECK:STDOUT:   %bool.as.I.impl.F.decl: %bool.as.I.impl.F.type = fn_decl @bool.as.I.impl.F [concrete = constants.%bool.as.I.impl.F] {
-// CHECK:STDOUT:     %c.patt: %pattern_type.225 = binding_pattern c [concrete]
-// CHECK:STDOUT:     %c.param_patt: %pattern_type.225 = value_param_pattern %c.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %c.patt: %pattern_type.928 = binding_pattern c [concrete]
+// CHECK:STDOUT:     %c.param_patt: %pattern_type.928 = value_param_pattern %c.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %c.param: %C.7db = value_param call_param0
-// CHECK:STDOUT:     %.loc32_22: type = splice_block %C [concrete = constants.%C.7db] {
+// CHECK:STDOUT:     %c.param: %C.6d9 = value_param call_param0
+// CHECK:STDOUT:     %.loc32_22: type = splice_block %C [concrete = constants.%C.6d9] {
 // CHECK:STDOUT:       %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %Bool.call: init type = call constants.%Bool() [concrete = bool]
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:       %I.facet: %I.type = facet_value bool, (constants.%I.impl_witness.c21) [concrete = constants.%I.facet.e8a]
-// CHECK:STDOUT:       %.loc32_18: %I.type = converted %Bool.call, %I.facet [concrete = constants.%I.facet.e8a]
-// CHECK:STDOUT:       %C: type = class_type @C, @C(constants.%I.type, constants.%I.facet.e8a) [concrete = constants.%C.7db]
+// CHECK:STDOUT:       %I.facet: %I.type = facet_value bool, (constants.%I.impl_witness.cd6) [concrete = constants.%I.facet.898]
+// CHECK:STDOUT:       %.loc32_18: %I.type = converted %Bool.call, %I.facet [concrete = constants.%I.facet.898]
+// CHECK:STDOUT:       %C: type = class_type @C, @C(constants.%I.type, constants.%I.facet.898) [concrete = constants.%C.6d9]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %c: %C.7db = bind_name c, %c.param
+// CHECK:STDOUT:     %c: %C.6d9 = bind_name c, %c.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -232,7 +232,7 @@ impl i32 as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @i32.as.I.impl: %i32 as %I.ref {
-// CHECK:STDOUT:   %i32.as.I.impl.F.decl.loc43_18.1: %i32.as.I.impl.F.type.066a53.1 = fn_decl @i32.as.I.impl.F.loc43_18.1 [concrete = constants.%i32.as.I.impl.F.9ec58f.1] {
+// CHECK:STDOUT:   %i32.as.I.impl.F.decl.loc43_18.1: %i32.as.I.impl.F.type.7b2a08.1 = fn_decl @i32.as.I.impl.F.loc43_18.1 [concrete = constants.%i32.as.I.impl.F.4105f2.1] {
 // CHECK:STDOUT:     %c.patt: %pattern_type.52b = binding_pattern c [concrete]
 // CHECK:STDOUT:     %c.param_patt: %pattern_type.52b = value_param_pattern %c.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -245,12 +245,12 @@ impl i32 as I {
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %c: %C.6fb = bind_name c, %c.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %i32.as.I.impl.F.decl.loc43_18.2: %i32.as.I.impl.F.type.066a53.2 = fn_decl @i32.as.I.impl.F.loc43_18.2 [concrete = constants.%i32.as.I.impl.F.9ec58f.2] {
-// CHECK:STDOUT:     %c.patt: %pattern_type.c65 = binding_pattern c [concrete]
-// CHECK:STDOUT:     %c.param_patt: %pattern_type.c65 = value_param_pattern %c.patt, call_param0 [concrete]
+// CHECK:STDOUT:   %i32.as.I.impl.F.decl.loc43_18.2: %i32.as.I.impl.F.type.7b2a08.2 = fn_decl @i32.as.I.impl.F.loc43_18.2 [concrete = constants.%i32.as.I.impl.F.4105f2.2] {
+// CHECK:STDOUT:     %c.patt: %pattern_type.f5b = binding_pattern c [concrete]
+// CHECK:STDOUT:     %c.param_patt: %pattern_type.f5b = value_param_pattern %c.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %c.param: %C.d88 = value_param call_param0
-// CHECK:STDOUT:     %c: %C.d88 = bind_name c, %c.param
+// CHECK:STDOUT:     %c.param: %C.70c = value_param call_param0
+// CHECK:STDOUT:     %c: %C.70c = bind_name c, %c.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -271,7 +271,7 @@ impl i32 as I {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.b36 [symbolic = @C.as.Destroy.impl.%C (constants.%C.b36)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T, constants.%X) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.e7a)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T, constants.%X) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.5d3)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -293,21 +293,21 @@ impl i32 as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %C.loc25_17.1: type = class_type @C, @C(constants.%I.type, %Self) [symbolic = %C.loc25_17.1 (constants.%C.dbb)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %C.loc25_17.1 [symbolic = %pattern_type (constants.%pattern_type.4fb)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %C.loc25_17.1: type = class_type @C, @C(constants.%I.type, %Self) [symbolic = %C.loc25_17.1 (constants.%C.4cb)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %C.loc25_17.1 [symbolic = %pattern_type (constants.%pattern_type.354)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%c.param: @I.F.%C.loc25_17.1 (%C.dbb));
+// CHECK:STDOUT:   fn(%c.param: @I.F.%C.loc25_17.1 (%C.4cb));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: fn @bool.as.I.impl.F(%c.param: %C.7db);
+// CHECK:STDOUT: fn @bool.as.I.impl.F(%c.param: %C.6d9);
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @i32.as.I.impl.F.loc43_18.1(%c.param: %C.6fb);
 // CHECK:STDOUT:
-// CHECK:STDOUT: fn @i32.as.I.impl.F.loc43_18.2(%c.param: %C.d88) [thunk @i32.as.I.impl.%i32.as.I.impl.F.decl.loc43_18.1] {
+// CHECK:STDOUT: fn @i32.as.I.impl.F.loc43_18.2(%c.param: %C.70c) [thunk @i32.as.I.impl.%i32.as.I.impl.F.decl.loc43_18.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %i32.as.I.impl.F.type.066a53.1 = name_ref F, @i32.as.I.impl.%i32.as.I.impl.F.decl.loc43_18.1 [concrete = constants.%i32.as.I.impl.F.9ec58f.1]
-// CHECK:STDOUT:   %c.ref: %C.d88 = name_ref c, %c.param
+// CHECK:STDOUT:   %F.ref: %i32.as.I.impl.F.type.7b2a08.1 = name_ref F, @i32.as.I.impl.%i32.as.I.impl.F.decl.loc43_18.1 [concrete = constants.%i32.as.I.impl.F.4105f2.1]
+// CHECK:STDOUT:   %c.ref: %C.70c = name_ref c, %c.param
 // CHECK:STDOUT:   %.loc25: %C.6fb = converted %c.ref, <error> [concrete = <error>]
 // CHECK:STDOUT:   %i32.as.I.impl.F.call: init %empty_tuple.type = call %F.ref(<error>)
 // CHECK:STDOUT:   return
@@ -323,7 +323,7 @@ impl i32 as I {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %C => constants.%C.b36
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e7a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5d3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T, constants.%X) {
@@ -334,28 +334,28 @@ impl i32 as I {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7e5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%I.type, constants.%Self.826) {
+// CHECK:STDOUT: specific @C(constants.%I.type, constants.%Self.ce4) {
 // CHECK:STDOUT:   %T.loc15_9.1 => constants.%I.type
-// CHECK:STDOUT:   %X.loc15_19.1 => constants.%Self.826
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2b5
+// CHECK:STDOUT:   %X.loc15_19.1 => constants.%Self.ce4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.71c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %C.loc25_17.1 => constants.%C.dbb
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4fb
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %C.loc25_17.1 => constants.%C.4cb
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.354
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%I.type, constants.%I.facet.e8a) {
+// CHECK:STDOUT: specific @C(constants.%I.type, constants.%I.facet.898) {
 // CHECK:STDOUT:   %T.loc15_9.1 => constants.%I.type
-// CHECK:STDOUT:   %X.loc15_19.1 => constants.%I.facet.e8a
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2b5
+// CHECK:STDOUT:   %X.loc15_19.1 => constants.%I.facet.898
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.71c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.e8a) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.e8a
-// CHECK:STDOUT:   %C.loc25_17.1 => constants.%C.7db
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.225
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.898) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.898
+// CHECK:STDOUT:   %C.loc25_17.1 => constants.%C.6d9
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.928
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(type, constants.%i32) {
@@ -367,18 +367,18 @@ impl i32 as I {
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.473
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.118) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.118
-// CHECK:STDOUT:   %C.loc25_17.1 => constants.%C.d88
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c65
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.274) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.274
+// CHECK:STDOUT:   %C.loc25_17.1 => constants.%C.70c
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f5b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%I.type, constants.%I.facet.118) {
+// CHECK:STDOUT: specific @C(constants.%I.type, constants.%I.facet.274) {
 // CHECK:STDOUT:   %T.loc15_9.1 => constants.%I.type
-// CHECK:STDOUT:   %X.loc15_19.1 => constants.%I.facet.118
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2b5
+// CHECK:STDOUT:   %X.loc15_19.1 => constants.%I.facet.274
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.71c
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.acb
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.2f9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/forward_decls.carbon b/toolchain/check/testdata/impl/forward_decls.carbon
index e7f3eb8d8e3e..6afcd31fadf4 100644
--- a/toolchain/check/testdata/impl/forward_decls.carbon
+++ b/toolchain/check/testdata/impl/forward_decls.carbon
@@ -414,16 +414,16 @@ interface I {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %I.type, %type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -433,8 +433,8 @@ interface I {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -451,7 +451,7 @@ interface I {
 // CHECK:STDOUT:     %.loc4_7.2: type = converted %.loc4_7.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %I.ref.loc4_12: type = name_ref I, file.%I.decl.loc3 [concrete = constants.%I.type]
 // CHECK:STDOUT:     %I.ref.loc4_16: type = name_ref I, file.%I.decl.loc3 [concrete = constants.%I.type]
-// CHECK:STDOUT:     %impl.elem0.loc4: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:     %impl.elem0.loc4: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:     %bound_method.loc4: <bound method> = bound_method %I.ref.loc4_12, %impl.elem0.loc4 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:     %type.as.BitAndWith.impl.Op.call.loc4: init type = call %bound_method.loc4(%I.ref.loc4_12, %I.ref.loc4_16) [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
@@ -465,14 +465,14 @@ interface I {
 // CHECK:STDOUT:     %.loc7_7.2: type = converted %.loc7_7.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %I.ref.loc7_12: type = name_ref I, file.%I.decl.loc3 [concrete = constants.%I.type]
 // CHECK:STDOUT:     %I.ref.loc7_16: type = name_ref I, file.%I.decl.loc3 [concrete = constants.%I.type]
-// CHECK:STDOUT:     %impl.elem0.loc7: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:     %impl.elem0.loc7: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:     %bound_method.loc7: <bound method> = bound_method %I.ref.loc7_12, %impl.elem0.loc7 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:     %type.as.BitAndWith.impl.Op.call.loc7: init type = call %bound_method.loc7(%I.ref.loc7_12, %I.ref.loc7_16) [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -584,7 +584,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
@@ -601,11 +601,11 @@ interface I {
 // CHECK:STDOUT:   %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet.74c: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %I.facet.86d: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %empty_tuple.type> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %I.facet.880: %I.type = facet_value %C, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet.490: %I.type = facet_value %C, (%I.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT: }
@@ -655,8 +655,8 @@ interface I {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, %C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, %I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     %T.ref: %I.assoc_type = name_ref T, @T.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:     %I.facet: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.880]
-// CHECK:STDOUT:     %.loc9_9.2: %I.type = converted %C.ref, %I.facet [concrete = constants.%I.facet.880]
+// CHECK:STDOUT:     %I.facet: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.490]
+// CHECK:STDOUT:     %.loc9_9.2: %I.type = converted %C.ref, %I.facet [concrete = constants.%I.facet.490]
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
@@ -681,7 +681,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
@@ -737,17 +737,17 @@ interface I {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%I.facet.74c) {}
+// CHECK:STDOUT: specific @T(constants.%I.facet.86d) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%I.facet.880) {}
+// CHECK:STDOUT: specific @T(constants.%I.facet.490) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- associated_const_of_facet.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
@@ -764,11 +764,11 @@ interface I {
 // CHECK:STDOUT:   %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet.74c: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %I.facet.86d: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %empty_tuple.type> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %I.facet.880: %I.type = facet_value %C, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet.490: %I.type = facet_value %C, (%I.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT: }
@@ -817,8 +817,8 @@ interface I {
 // CHECK:STDOUT:   %.loc9_16.1: type = splice_block %impl.elem0 [concrete = constants.%empty_tuple.type] {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, %C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, %I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %I.facet: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.880]
-// CHECK:STDOUT:     %.loc9_11: %I.type = converted %C.ref, %I.facet [concrete = constants.%I.facet.880]
+// CHECK:STDOUT:     %I.facet: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.490]
+// CHECK:STDOUT:     %.loc9_11: %I.type = converted %C.ref, %I.facet [concrete = constants.%I.facet.490]
 // CHECK:STDOUT:     %T.ref: %I.assoc_type = name_ref T, @T.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %as_type: type = facet_access_type %.loc9_11 [concrete = constants.%C]
 // CHECK:STDOUT:     %.loc9_16.2: type = converted %.loc9_11, %as_type [concrete = constants.%C]
@@ -846,7 +846,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
@@ -902,17 +902,17 @@ interface I {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%I.facet.74c) {}
+// CHECK:STDOUT: specific @T(constants.%I.facet.86d) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%I.facet.880) {}
+// CHECK:STDOUT: specific @T(constants.%I.facet.490) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_unset_associated_const.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
@@ -976,7 +976,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
@@ -1032,7 +1032,7 @@ interface I {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T(constants.%I.facet) {}
 // CHECK:STDOUT:
@@ -1044,7 +1044,7 @@ interface I {
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -1052,8 +1052,8 @@ interface I {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1108,7 +1108,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1157,7 +1157,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1169,7 +1169,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1189,33 +1189,33 @@ interface I {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%U)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%U)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5: type = assoc_entity_type @I, @I(%U) [symbolic]
 // CHECK:STDOUT:   %assoc0.7f3: %I.assoc_type.1e5 = assoc_entity element0, @I.%T [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op: %D.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %I.type.e7a: type = facet_type <@I, @I(%C)> [concrete]
-// CHECK:STDOUT:   %.Self.0dc: %I.type.e7a = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Self.b1d: %I.type.e7a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.0d6: type = facet_type <@I, @I(%C)> [concrete]
+// CHECK:STDOUT:   %.Self.787: %I.type.0d6 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Self.6aa: %I.type.0d6 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.b3c: type = assoc_entity_type @I, @I(%C) [concrete]
 // CHECK:STDOUT:   %assoc0.3e4: %I.assoc_type.b3c = assoc_entity element0, @I.%T [concrete]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.0dc [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.0dc, @I, @I(%C) [symbolic_self]
-// CHECK:STDOUT:   %I.facet: %I.type.e7a = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.787 [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.787, @I, @I(%C) [symbolic_self]
+// CHECK:STDOUT:   %I.facet: %I.type.0d6 = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I, @I(%C) where %impl.elem0 = %C> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1251,9 +1251,9 @@ interface I {
 // CHECK:STDOUT:     %D.ref.loc8: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %I.ref.loc8: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %C.ref.loc8_13: type = name_ref C, file.%C.decl.loc6 [concrete = constants.%C]
-// CHECK:STDOUT:     %I.type.loc8: type = facet_type <@I, @I(constants.%C)> [concrete = constants.%I.type.e7a]
-// CHECK:STDOUT:     %.Self.2: %I.type.e7a = bind_symbolic_name .Self [symbolic_self = constants.%.Self.0dc]
-// CHECK:STDOUT:     %.Self.ref.loc8: %I.type.e7a = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.0dc]
+// CHECK:STDOUT:     %I.type.loc8: type = facet_type <@I, @I(constants.%C)> [concrete = constants.%I.type.0d6]
+// CHECK:STDOUT:     %.Self.2: %I.type.0d6 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.787]
+// CHECK:STDOUT:     %.Self.ref.loc8: %I.type.0d6 = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.787]
 // CHECK:STDOUT:     %.loc8_22.1: %I.assoc_type.b3c = specific_constant @T.%assoc0, @I(constants.%C) [concrete = constants.%assoc0.3e4]
 // CHECK:STDOUT:     %T.ref.loc8: %I.assoc_type.b3c = name_ref T, %.loc8_22.1 [concrete = constants.%assoc0.3e4]
 // CHECK:STDOUT:     %.Self.as_type.loc8: type = facet_access_type %.Self.ref.loc8 [symbolic_self = constants.%.Self.as_type]
@@ -1261,7 +1261,7 @@ interface I {
 // CHECK:STDOUT:     %impl.elem0.loc8: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %C.ref.loc8_27: type = name_ref C, file.%C.decl.loc6 [concrete = constants.%C]
 // CHECK:STDOUT:     %.loc8_16: type = where_expr %.Self.2 [concrete = constants.%I_where.type] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%I.type.e7a
+// CHECK:STDOUT:       requirement_base_facet_type constants.%I.type.0d6
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0.loc8, %C.ref.loc8_27
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
@@ -1273,9 +1273,9 @@ interface I {
 // CHECK:STDOUT:     %D.ref.loc11: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %I.ref.loc11: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %C.ref.loc11_13: type = name_ref C, file.%C.decl.loc6 [concrete = constants.%C]
-// CHECK:STDOUT:     %I.type.loc11: type = facet_type <@I, @I(constants.%C)> [concrete = constants.%I.type.e7a]
-// CHECK:STDOUT:     %.Self.1: %I.type.e7a = bind_symbolic_name .Self [symbolic_self = constants.%.Self.0dc]
-// CHECK:STDOUT:     %.Self.ref.loc11: %I.type.e7a = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.0dc]
+// CHECK:STDOUT:     %I.type.loc11: type = facet_type <@I, @I(constants.%C)> [concrete = constants.%I.type.0d6]
+// CHECK:STDOUT:     %.Self.1: %I.type.0d6 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.787]
+// CHECK:STDOUT:     %.Self.ref.loc11: %I.type.0d6 = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.787]
 // CHECK:STDOUT:     %.loc11_22.1: %I.assoc_type.b3c = specific_constant @T.%assoc0, @I(constants.%C) [concrete = constants.%assoc0.3e4]
 // CHECK:STDOUT:     %T.ref.loc11: %I.assoc_type.b3c = name_ref T, %.loc11_22.1 [concrete = constants.%assoc0.3e4]
 // CHECK:STDOUT:     %.Self.as_type.loc11: type = facet_access_type %.Self.ref.loc11 [symbolic_self = constants.%.Self.as_type]
@@ -1283,7 +1283,7 @@ interface I {
 // CHECK:STDOUT:     %impl.elem0.loc11: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %C.ref.loc11_27: type = name_ref C, file.%C.decl.loc6 [concrete = constants.%C]
 // CHECK:STDOUT:     %.loc11_16: type = where_expr %.Self.1 [concrete = constants.%I_where.type] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%I.type.e7a
+// CHECK:STDOUT:       requirement_base_facet_type constants.%I.type.0d6
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0.loc11, %C.ref.loc11_27
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
@@ -1293,13 +1293,13 @@ interface I {
 // CHECK:STDOUT:   %U.loc3_13.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc3_13.1 (constants.%U)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U.loc3_13.1)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U.loc3_13.1)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d8)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%U.loc3_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
 // CHECK:STDOUT:   %assoc0: @I.%I.assoc_type (%I.assoc_type.1e5) = assoc_entity element0, %T [symbolic = %assoc0 (constants.%assoc0.7f3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d8)]
 // CHECK:STDOUT:     %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:       %assoc0: @I.%I.assoc_type (%I.assoc_type.1e5) = assoc_entity element0, @I.%T [symbolic = @I.%assoc0 (constants.%assoc0.7f3)]
 // CHECK:STDOUT:     }
@@ -1311,7 +1311,7 @@ interface I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(@I.%U.loc3_13.2: type, @I.%Self.1: @I.%I.type (%I.type.325)) {
+// CHECK:STDOUT: generic assoc_const @T(@I.%U.loc3_13.2: type, @I.%Self.1: @I.%I.type (%I.type.328)) {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1356,7 +1356,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1368,7 +1368,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1384,14 +1384,14 @@ interface I {
 // CHECK:STDOUT:   %U.loc3_13.1 => constants.%U
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%U, constants.%Self.209) {}
+// CHECK:STDOUT: specific @T(constants.%U, constants.%Self.0d8) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%C) {
 // CHECK:STDOUT:   %U.loc3_13.1 => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.e7a
-// CHECK:STDOUT:   %Self.2 => constants.%Self.b1d
+// CHECK:STDOUT:   %I.type => constants.%I.type.0d6
+// CHECK:STDOUT:   %Self.2 => constants.%Self.6aa
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.b3c
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.3e4
 // CHECK:STDOUT: }
@@ -1405,7 +1405,7 @@ interface I {
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -1415,19 +1415,19 @@ interface I {
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT:   %C.type: type = generic_class_type @C [concrete]
 // CHECK:STDOUT:   %C.generic: %C.type = struct_value () [concrete]
-// CHECK:STDOUT:   %C.54e: type = class_type @C, @C(%T) [symbolic]
+// CHECK:STDOUT:   %C.d02: type = class_type @C, @C(%T) [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %D, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %C.8b1: type = class_type @C, @C(%I.facet) [concrete]
-// CHECK:STDOUT:   %pattern_type.da9: type = pattern_type %C.8b1 [concrete]
+// CHECK:STDOUT:   %C.4a2: type = class_type @C, @C(%I.facet) [concrete]
+// CHECK:STDOUT:   %pattern_type.f39: type = pattern_type %C.4a2 [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.2b7: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %ptr.777: type = ptr_type %C.54e [symbolic]
-// CHECK:STDOUT:   %pattern_type.610: type = pattern_type %ptr.777 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.b53: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %ptr.b50: type = ptr_type %C.d02 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b8e: type = pattern_type %ptr.b50 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT: }
@@ -1459,7 +1459,7 @@ interface I {
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @D.as.I.impl [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
 // CHECK:STDOUT:   %C.decl.loc6: %C.type = class_decl @C [concrete = constants.%C.generic] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc6: type = splice_block %I.ref.loc6 [concrete = constants.%I.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1468,18 +1468,18 @@ interface I {
 // CHECK:STDOUT:     %T.loc6_9.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc6_9.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %F.decl.loc8: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %x.patt: %pattern_type.da9 = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: %pattern_type.da9 = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %x.patt: %pattern_type.f39 = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: %pattern_type.f39 = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %x.param.loc8: %C.8b1 = value_param call_param0
-// CHECK:STDOUT:     %.loc8_12.1: type = splice_block %C.loc8 [concrete = constants.%C.8b1] {
+// CHECK:STDOUT:     %x.param.loc8: %C.4a2 = value_param call_param0
+// CHECK:STDOUT:     %.loc8_12.1: type = splice_block %C.loc8 [concrete = constants.%C.4a2] {
 // CHECK:STDOUT:       %C.ref.loc8: %C.type = name_ref C, file.%C.decl.loc6 [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %D.ref.loc8: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:       %I.facet.loc8: %I.type = facet_value constants.%D, (constants.%I.impl_witness) [concrete = constants.%I.facet]
 // CHECK:STDOUT:       %.loc8_12.2: %I.type = converted %D.ref.loc8, %I.facet.loc8 [concrete = constants.%I.facet]
-// CHECK:STDOUT:       %C.loc8: type = class_type @C, @C(constants.%I.facet) [concrete = constants.%C.8b1]
+// CHECK:STDOUT:       %C.loc8: type = class_type @C, @C(constants.%I.facet) [concrete = constants.%C.4a2]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %x.loc8: %C.8b1 = bind_name x, %x.param.loc8
+// CHECK:STDOUT:     %x.loc8: %C.4a2 = bind_name x, %x.param.loc8
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.decl.loc10: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   impl_decl @D.as.I.impl [concrete] {} {
@@ -1487,7 +1487,7 @@ interface I {
 // CHECK:STDOUT:     %I.ref.loc11: type = name_ref I, file.%I.decl.loc3 [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %C.decl.loc12: %C.type = class_decl @C [concrete = constants.%C.generic] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc12: type = splice_block %I.ref.loc12 [concrete = constants.%I.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1496,23 +1496,23 @@ interface I {
 // CHECK:STDOUT:     %T.loc12: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc6_9.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %F.decl.loc14: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %x.patt: %pattern_type.da9 = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: %pattern_type.da9 = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %x.patt: %pattern_type.f39 = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: %pattern_type.f39 = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %x.param.loc14: %C.8b1 = value_param call_param0
-// CHECK:STDOUT:     %.loc14_12.1: type = splice_block %C.loc14 [concrete = constants.%C.8b1] {
+// CHECK:STDOUT:     %x.param.loc14: %C.4a2 = value_param call_param0
+// CHECK:STDOUT:     %.loc14_12.1: type = splice_block %C.loc14 [concrete = constants.%C.4a2] {
 // CHECK:STDOUT:       %C.ref.loc14: %C.type = name_ref C, file.%C.decl.loc6 [concrete = constants.%C.generic]
 // CHECK:STDOUT:       %D.ref.loc14: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:       %I.facet.loc14: %I.type = facet_value constants.%D, (constants.%I.impl_witness) [concrete = constants.%I.facet]
 // CHECK:STDOUT:       %.loc14_12.2: %I.type = converted %D.ref.loc14, %I.facet.loc14 [concrete = constants.%I.facet]
-// CHECK:STDOUT:       %C.loc14: type = class_type @C, @C(constants.%I.facet) [concrete = constants.%C.8b1]
+// CHECK:STDOUT:       %C.loc14: type = class_type @C, @C(constants.%I.facet) [concrete = constants.%C.4a2]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %x.loc14: %C.8b1 = bind_name x, %x.param.loc14
+// CHECK:STDOUT:     %x.loc14: %C.4a2 = bind_name x, %x.param.loc14
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1542,8 +1542,8 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc12: %I.type) {
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.54e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.2b7)]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.d02)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.b53)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -1551,16 +1551,16 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.610) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.610) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.b8e) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.b8e) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc12_16.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.777) = value_param call_param0
-// CHECK:STDOUT:       %.loc12_16.2: type = splice_block %Self.ref [symbolic = %C (constants.%C.54e)] {
-// CHECK:STDOUT:         %.loc12_16.3: type = specific_constant constants.%C.54e, @C(constants.%T) [symbolic = %C (constants.%C.54e)]
-// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc12_16.3 [symbolic = %C (constants.%C.54e)]
+// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.b50) = value_param call_param0
+// CHECK:STDOUT:       %.loc12_16.2: type = splice_block %Self.ref [symbolic = %C (constants.%C.d02)] {
+// CHECK:STDOUT:         %.loc12_16.3: type = specific_constant constants.%C.d02, @C(constants.%T) [symbolic = %C (constants.%C.d02)]
+// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc12_16.3 [symbolic = %C (constants.%C.d02)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.777) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.b50) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -1573,7 +1573,7 @@ interface I {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1587,34 +1587,34 @@ interface I {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.54e [symbolic = @C.as.Destroy.impl.%C (constants.%C.54e)]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.d02 [symbolic = @C.as.Destroy.impl.%C (constants.%C.d02)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.2b7)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.b53)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = constants.%C.54e
+// CHECK:STDOUT:     .Self = constants.%C.d02
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @D.as.Destroy.impl.Op(%self.param: %ptr.19c) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: fn @F(%x.param.loc14: %C.8b1) {
+// CHECK:STDOUT: fn @F(%x.param.loc14: %C.4a2) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.as.Destroy.impl.Op(@C.%T.loc12: %I.type) {
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.54e)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.777)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.610)]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.d02)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.b50)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.b8e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.777)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.b50)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%T) {
@@ -1629,15 +1629,15 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %C => constants.%C.54e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2b7
+// CHECK:STDOUT:   %C => constants.%C.d02
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.b53
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %C => constants.%C.54e
-// CHECK:STDOUT:   %ptr => constants.%ptr.777
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.610
+// CHECK:STDOUT:   %C => constants.%C.d02
+// CHECK:STDOUT:   %ptr => constants.%ptr.b50
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b8e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_todo_two_interfaces.carbon
@@ -1648,17 +1648,17 @@ interface I {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %I.type, %type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %facet_type: type = facet_type <@I & @J> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1668,8 +1668,8 @@ interface I {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1688,7 +1688,7 @@ interface I {
 // CHECK:STDOUT:     %.loc10_7.2: type = converted %.loc10_7.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl.loc3 [concrete = constants.%I.type]
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl.loc4 [concrete = constants.%J.type]
-// CHECK:STDOUT:     %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:     %impl.elem0: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:     %bound_method: <bound method> = bound_method %I.ref, %impl.elem0 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:     %type.as.BitAndWith.impl.Op.call: init type = call %bound_method(%I.ref, %J.ref) [concrete = constants.%facet_type]
 // CHECK:STDOUT:   }
@@ -1697,7 +1697,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1705,7 +1705,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1718,7 +1718,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %assoc1: %I.assoc_type = assoc_entity element1, @I.%U [concrete]
@@ -1798,7 +1798,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
@@ -1856,9 +1856,9 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.826) {}
+// CHECK:STDOUT: specific @U(constants.%Self.ce4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T(constants.%I.facet) {}
 // CHECK:STDOUT:
@@ -1868,18 +1868,18 @@ interface I {
 // CHECK:STDOUT:   %X.type: type = facet_type <@X> [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %U: %X.type = bind_symbolic_name U, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.08c: type = pattern_type %X.type [concrete]
+// CHECK:STDOUT:   %pattern_type.ae9: type = pattern_type %X.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %U.as_type: type = facet_access_type %U [symbolic]
-// CHECK:STDOUT:   %pattern_type.331: type = pattern_type %U.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.a62: type = pattern_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %X.impl_witness: <witness> = impl_witness file.%X.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.e5e: %X.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.c24: %X.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
@@ -1895,7 +1895,7 @@ interface I {
 // CHECK:STDOUT:   %X.facet: %X.type = facet_value %C, (%X.impl_witness) [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%X.facet) [concrete]
 // CHECK:STDOUT:   %G.specific_fn: <specific function> = specific_function %G, @G(%X.facet) [concrete]
-// CHECK:STDOUT:   %Self.b29: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.33b: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type [symbolic]
 // CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness file.%Y.impl_witness_table [concrete]
 // CHECK:STDOUT: }
@@ -1922,7 +1922,7 @@ interface I {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %X.decl.loc3: type = interface_decl @X [concrete = constants.%X.type] {} {}
 // CHECK:STDOUT:   %F.decl.loc6: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.08c = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.ae9 = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc6: type = splice_block %X.ref.loc6 [concrete = constants.%X.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1931,9 +1931,9 @@ interface I {
 // CHECK:STDOUT:     %U.loc6_6.2: %X.type = bind_symbolic_name U, 0 [symbolic = %U.loc6_6.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl.loc7: %G.type = fn_decl @G [concrete = constants.%G] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.08c = symbolic_binding_pattern U, 0 [concrete]
-// CHECK:STDOUT:     %u.patt: @G.%pattern_type (%pattern_type.331) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @G.%pattern_type (%pattern_type.331) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.ae9 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %u.patt: @G.%pattern_type (%pattern_type.a62) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @G.%pattern_type (%pattern_type.a62) = value_param_pattern %u.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc7_10: type = splice_block %X.ref.loc7 [concrete = constants.%X.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1968,7 +1968,7 @@ interface I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Y.decl.loc33: type = interface_decl @Y [concrete = constants.%Y.type] {} {}
 // CHECK:STDOUT:   %F.decl.loc34: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.08c = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.ae9 = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc34: type = splice_block %X.ref.loc34 [concrete = constants.%X.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1977,9 +1977,9 @@ interface I {
 // CHECK:STDOUT:     %U.loc34: %X.type = bind_symbolic_name U, 0 [symbolic = %U.loc6_6.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl.loc35: %G.type = fn_decl @G [concrete = constants.%G] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.08c = symbolic_binding_pattern U, 0 [concrete]
-// CHECK:STDOUT:     %u.patt: @G.%pattern_type (%pattern_type.331) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @G.%pattern_type (%pattern_type.331) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.ae9 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %u.patt: @G.%pattern_type (%pattern_type.a62) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @G.%pattern_type (%pattern_type.a62) = value_param_pattern %u.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc35_10: type = splice_block %X.ref.loc35 [concrete = constants.%X.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -2011,7 +2011,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @X {
-// CHECK:STDOUT:   %Self: %X.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e5e]
+// CHECK:STDOUT:   %Self: %X.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.c24]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -2019,7 +2019,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b29]
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.33b]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -2078,7 +2078,7 @@ interface I {
 // CHECK:STDOUT: generic fn @G(%U.loc7_6.2: %X.type) {
 // CHECK:STDOUT:   %U.loc7_6.1: %X.type = bind_symbolic_name U, 0 [symbolic = %U.loc7_6.1 (constants.%U)]
 // CHECK:STDOUT:   %U.as_type.loc7_16.1: type = facet_access_type %U.loc7_6.1 [symbolic = %U.as_type.loc7_16.1 (constants.%U.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc7_16.1 [symbolic = %pattern_type (constants.%pattern_type.331)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %U.as_type.loc7_16.1 [symbolic = %pattern_type (constants.%pattern_type.a62)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %U.as_type.loc7_16.1 [symbolic = %require_complete (constants.%require_complete)]
@@ -2117,7 +2117,7 @@ interface I {
 // CHECK:STDOUT: specific @G(constants.%U) {
 // CHECK:STDOUT:   %U.loc7_6.1 => constants.%U
 // CHECK:STDOUT:   %U.as_type.loc7_16.1 => constants.%U.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.331
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a62
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @F(constants.%X.facet) {
@@ -2139,22 +2139,22 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%Self.826) [symbolic]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%Self.ce4) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self.826) [symbolic]
-// CHECK:STDOUT:   %ptr.ec7: type = ptr_type %C [symbolic]
-// CHECK:STDOUT:   %pattern_type.6b6: type = pattern_type %ptr.ec7 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Self.826) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self.ce4) [symbolic]
+// CHECK:STDOUT:   %ptr.27e: type = ptr_type %C [symbolic]
+// CHECK:STDOUT:   %pattern_type.ab3: type = pattern_type %ptr.27e [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Self.ce4) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @I.F.%I.impl_witness_table, @C.as.I.impl(%Self.826) [symbolic]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @I.F.%I.impl_witness_table, @C.as.I.impl(%Self.ce4) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2176,7 +2176,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {} {}
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -2188,7 +2188,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:
@@ -2198,16 +2198,16 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.6b6) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.6b6) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.ab3) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.ab3) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc10_13.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.ec7) = value_param call_param0
+// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.27e) = value_param call_param0
 // CHECK:STDOUT:       %.loc10_13.2: type = splice_block %Self.ref [symbolic = %C (constants.%C)] {
-// CHECK:STDOUT:         %.loc10_13.3: type = specific_constant constants.%C, @C(constants.%Self.826) [symbolic = %C (constants.%C)]
+// CHECK:STDOUT:         %.loc10_13.3: type = specific_constant constants.%C, @C(constants.%Self.ce4) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc10_13.3 [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.ec7) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.27e) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -2217,7 +2217,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.I.impl(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @I.F.%I.impl_witness_table, @C.as.I.impl(%Self) [symbolic = %I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:
@@ -2237,7 +2237,7 @@ interface I {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [symbolic = @C.as.Destroy.impl.%C (constants.%C)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%Self.826) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%Self.ce4) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -2248,7 +2248,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -2259,7 +2259,7 @@ interface I {
 // CHECK:STDOUT:       %I.ref.loc11: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %I.impl_witness_table = impl_witness_table (<error>), @C.as.I.impl [concrete]
-// CHECK:STDOUT:     %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%Self.826) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
+// CHECK:STDOUT:     %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%Self.ce4) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:     impl_decl @C.as.I.impl [concrete] {} {
 // CHECK:STDOUT:       %C.ref.loc20: type = name_ref C, @I.F.%C.decl [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:       %I.ref.loc20: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
@@ -2269,35 +2269,35 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.as.Destroy.impl.Op(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.ec7)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.6b6)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.27e)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.ab3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.ec7)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.27e)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%Self.826) {}
+// CHECK:STDOUT: specific @C(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %C => constants.%C
 // CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %C => constants.%C
-// CHECK:STDOUT:   %ptr => constants.%ptr.ec7
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6b6
+// CHECK:STDOUT:   %ptr => constants.%ptr.27e
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ab3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @C.as.I.impl(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %C => constants.%C
 // CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT: }
@@ -2306,19 +2306,19 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%U [concrete]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %I.assoc_type = assoc_entity element1, @I.%I.F.decl [concrete]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%Self.826) [symbolic]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%Self.ce4) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self.826) [symbolic]
-// CHECK:STDOUT:   %ptr.ec7: type = ptr_type %C [symbolic]
-// CHECK:STDOUT:   %pattern_type.6b6: type = pattern_type %ptr.ec7 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Self.826) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self.ce4) [symbolic]
+// CHECK:STDOUT:   %ptr.27e: type = ptr_type %C [symbolic]
+// CHECK:STDOUT:   %pattern_type.ab3: type = pattern_type %ptr.27e [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Self.ce4) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
@@ -2329,7 +2329,7 @@ interface I {
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %C> [symbolic]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I_where.type [symbolic]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @I.F.%I.impl_witness_table, @C.as.I.impl(%Self.826) [symbolic]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @I.F.%I.impl_witness_table, @C.as.I.impl(%Self.ce4) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2351,7 +2351,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %U: type = assoc_const_decl @U [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%U [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
@@ -2371,7 +2371,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:
@@ -2381,16 +2381,16 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.6b6) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.6b6) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.ab3) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.ab3) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc11_13.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.ec7) = value_param call_param0
+// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.27e) = value_param call_param0
 // CHECK:STDOUT:       %.loc11_13.2: type = splice_block %Self.ref [symbolic = %C (constants.%C)] {
-// CHECK:STDOUT:         %.loc11_13.3: type = specific_constant constants.%C, @C(constants.%Self.826) [symbolic = %C (constants.%C)]
+// CHECK:STDOUT:         %.loc11_13.3: type = specific_constant constants.%C, @C(constants.%Self.ce4) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc11_13.3 [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.ec7) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.27e) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -2400,7 +2400,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.I.impl(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where constants.%impl.elem0 = %C> [symbolic = %I_where.type (constants.%I_where.type)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I_where.type [symbolic = %require_complete (constants.%require_complete)]
@@ -2422,7 +2422,7 @@ interface I {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [symbolic = @C.as.Destroy.impl.%C (constants.%C)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%Self.826) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%Self.ce4) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -2433,7 +2433,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -2455,7 +2455,7 @@ interface I {
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %I.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant, <error>), @C.as.I.impl [concrete]
-// CHECK:STDOUT:     %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%Self.826) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
+// CHECK:STDOUT:     %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @C.as.I.impl(constants.%Self.ce4) [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:     %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%C [symbolic = @C.as.I.impl.%C (constants.%C)]
 // CHECK:STDOUT:     impl_decl @C.as.I.impl [concrete] {} {
 // CHECK:STDOUT:       %C.ref.loc21_10: type = name_ref C, @I.F.%C.decl [symbolic = %C (constants.%C)]
@@ -2477,39 +2477,39 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.as.Destroy.impl.Op(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.ec7)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.6b6)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.27e)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.ab3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.ec7)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.27e)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.826) {}
+// CHECK:STDOUT: specific @U(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%Self.826) {}
+// CHECK:STDOUT: specific @C(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %C => constants.%C
 // CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %C => constants.%C
-// CHECK:STDOUT:   %ptr => constants.%ptr.ec7
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6b6
+// CHECK:STDOUT:   %ptr => constants.%ptr.27e
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ab3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U(constants.%I.facet) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
+// CHECK:STDOUT: specific @C.as.I.impl(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
 // CHECK:STDOUT:   %C => constants.%C
 // CHECK:STDOUT:   %I_where.type => constants.%I_where.type
 // CHECK:STDOUT:   %require_complete => constants.%require_complete
diff --git a/toolchain/check/testdata/impl/generic_redeclaration.carbon b/toolchain/check/testdata/impl/generic_redeclaration.carbon
index 7d71618cc9f6..5aceb2ee1c4a 100644
--- a/toolchain/check/testdata/impl/generic_redeclaration.carbon
+++ b/toolchain/check/testdata/impl/generic_redeclaration.carbon
@@ -122,32 +122,32 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface> [concrete]
-// CHECK:STDOUT:   %Self.719: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4f1: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %K.type: type = facet_type <@K> [concrete]
-// CHECK:STDOUT:   %Self.09f: %K.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.5d8: %K.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %L.type: type = facet_type <@L> [concrete]
-// CHECK:STDOUT:   %Self.1d2: %L.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4ff: %L.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %T.826: %I.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
-// CHECK:STDOUT:   %T.as_type.b70: type = facet_access_type %T.826 [symbolic]
-// CHECK:STDOUT:   %Interface.impl_witness.a14: <witness> = impl_witness file.%Interface.impl_witness_table.loc12, @T.as_type.as.Interface.impl.c3d(%T.826) [symbolic]
-// CHECK:STDOUT:   %T.ccd: %J.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.28e: type = pattern_type %J.type [concrete]
-// CHECK:STDOUT:   %T.as_type.3df: type = facet_access_type %T.ccd [symbolic]
-// CHECK:STDOUT:   %Interface.impl_witness.608: <witness> = impl_witness file.%Interface.impl_witness_table.loc13, @T.as_type.as.Interface.impl.793(%T.ccd) [symbolic]
-// CHECK:STDOUT:   %T.09f: %K.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4a6: type = pattern_type %K.type [concrete]
-// CHECK:STDOUT:   %T.as_type.037: type = facet_access_type %T.09f [symbolic]
-// CHECK:STDOUT:   %Interface.impl_witness.b9e: <witness> = impl_witness file.%Interface.impl_witness_table.loc14, @T.as_type.as.Interface.impl.c93(%T.09f) [symbolic]
-// CHECK:STDOUT:   %T.1d2: %L.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.86b: type = pattern_type %L.type [concrete]
-// CHECK:STDOUT:   %T.as_type.0ed: type = facet_access_type %T.1d2 [symbolic]
-// CHECK:STDOUT:   %Interface.impl_witness.e9d: <witness> = impl_witness file.%Interface.impl_witness_table.loc15, @T.as_type.as.Interface.impl.9e6(%T.1d2) [symbolic]
+// CHECK:STDOUT:   %T.ce4: %I.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %T.as_type.4af: type = facet_access_type %T.ce4 [symbolic]
+// CHECK:STDOUT:   %Interface.impl_witness.cda: <witness> = impl_witness file.%Interface.impl_witness_table.loc12, @T.as_type.as.Interface.impl.dcc(%T.ce4) [symbolic]
+// CHECK:STDOUT:   %T.212: %J.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.fdf: type = pattern_type %J.type [concrete]
+// CHECK:STDOUT:   %T.as_type.e94: type = facet_access_type %T.212 [symbolic]
+// CHECK:STDOUT:   %Interface.impl_witness.282: <witness> = impl_witness file.%Interface.impl_witness_table.loc13, @T.as_type.as.Interface.impl.d7c(%T.212) [symbolic]
+// CHECK:STDOUT:   %T.5d8: %K.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.085: type = pattern_type %K.type [concrete]
+// CHECK:STDOUT:   %T.as_type.2cc: type = facet_access_type %T.5d8 [symbolic]
+// CHECK:STDOUT:   %Interface.impl_witness.b3e: <witness> = impl_witness file.%Interface.impl_witness_table.loc14, @T.as_type.as.Interface.impl.9ad(%T.5d8) [symbolic]
+// CHECK:STDOUT:   %T.4ff: %L.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.01d: type = pattern_type %L.type [concrete]
+// CHECK:STDOUT:   %T.as_type.343: type = facet_access_type %T.4ff [symbolic]
+// CHECK:STDOUT:   %Interface.impl_witness.4c0: <witness> = impl_witness file.%Interface.impl_witness_table.loc15, @T.as_type.as.Interface.impl.6e8(%T.4ff) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -172,122 +172,122 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
 // CHECK:STDOUT:   %K.decl: type = interface_decl @K [concrete = constants.%K.type] {} {}
 // CHECK:STDOUT:   %L.decl: type = interface_decl @L [concrete = constants.%L.type] {} {}
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.c3d [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.dcc [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc12: %I.type = name_ref T, %T.loc12_14.1 [symbolic = %T.loc12_14.2 (constants.%T.826)]
-// CHECK:STDOUT:     %T.as_type.loc12_21.1: type = facet_access_type %T.ref.loc12 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.b70)]
-// CHECK:STDOUT:     %.loc12_21: type = converted %T.ref.loc12, %T.as_type.loc12_21.1 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.b70)]
+// CHECK:STDOUT:     %T.ref.loc12: %I.type = name_ref T, %T.loc12_14.1 [symbolic = %T.loc12_14.2 (constants.%T.ce4)]
+// CHECK:STDOUT:     %T.as_type.loc12_21.1: type = facet_access_type %T.ref.loc12 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.4af)]
+// CHECK:STDOUT:     %.loc12_21: type = converted %T.ref.loc12, %T.as_type.loc12_21.1 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.4af)]
 // CHECK:STDOUT:     %Interface.ref.loc12: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc12_18: type = splice_block %I.ref.loc12 [concrete = constants.%I.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %I.ref.loc12: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc12_14.1: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.826)]
+// CHECK:STDOUT:     %T.loc12_14.1: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.ce4)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Interface.impl_witness_table.loc12 = impl_witness_table (), @T.as_type.as.Interface.impl.c3d [concrete]
-// CHECK:STDOUT:   %Interface.impl_witness.loc12: <witness> = impl_witness %Interface.impl_witness_table.loc12, @T.as_type.as.Interface.impl.c3d(constants.%T.826) [symbolic = @T.as_type.as.Interface.impl.c3d.%Interface.impl_witness (constants.%Interface.impl_witness.a14)]
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.793 [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.28e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness_table.loc12 = impl_witness_table (), @T.as_type.as.Interface.impl.dcc [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness.loc12: <witness> = impl_witness %Interface.impl_witness_table.loc12, @T.as_type.as.Interface.impl.dcc(constants.%T.ce4) [symbolic = @T.as_type.as.Interface.impl.dcc.%Interface.impl_witness (constants.%Interface.impl_witness.cda)]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.d7c [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.fdf = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc13: %J.type = name_ref T, %T.loc13_14.1 [symbolic = %T.loc13_14.2 (constants.%T.ccd)]
-// CHECK:STDOUT:     %T.as_type.loc13_21.1: type = facet_access_type %T.ref.loc13 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.3df)]
-// CHECK:STDOUT:     %.loc13_21: type = converted %T.ref.loc13, %T.as_type.loc13_21.1 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.3df)]
+// CHECK:STDOUT:     %T.ref.loc13: %J.type = name_ref T, %T.loc13_14.1 [symbolic = %T.loc13_14.2 (constants.%T.212)]
+// CHECK:STDOUT:     %T.as_type.loc13_21.1: type = facet_access_type %T.ref.loc13 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.e94)]
+// CHECK:STDOUT:     %.loc13_21: type = converted %T.ref.loc13, %T.as_type.loc13_21.1 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.e94)]
 // CHECK:STDOUT:     %Interface.ref.loc13: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc13_18: type = splice_block %J.ref.loc13 [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %J.ref.loc13: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc13_14.1: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc13_14.2 (constants.%T.ccd)]
+// CHECK:STDOUT:     %T.loc13_14.1: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc13_14.2 (constants.%T.212)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Interface.impl_witness_table.loc13 = impl_witness_table (), @T.as_type.as.Interface.impl.793 [concrete]
-// CHECK:STDOUT:   %Interface.impl_witness.loc13: <witness> = impl_witness %Interface.impl_witness_table.loc13, @T.as_type.as.Interface.impl.793(constants.%T.ccd) [symbolic = @T.as_type.as.Interface.impl.793.%Interface.impl_witness (constants.%Interface.impl_witness.608)]
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.c93 [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.4a6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness_table.loc13 = impl_witness_table (), @T.as_type.as.Interface.impl.d7c [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness.loc13: <witness> = impl_witness %Interface.impl_witness_table.loc13, @T.as_type.as.Interface.impl.d7c(constants.%T.212) [symbolic = @T.as_type.as.Interface.impl.d7c.%Interface.impl_witness (constants.%Interface.impl_witness.282)]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.9ad [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.085 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc14: %K.type = name_ref T, %T.loc14_14.1 [symbolic = %T.loc14_14.2 (constants.%T.09f)]
-// CHECK:STDOUT:     %T.as_type.loc14_21.1: type = facet_access_type %T.ref.loc14 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.037)]
-// CHECK:STDOUT:     %.loc14_21: type = converted %T.ref.loc14, %T.as_type.loc14_21.1 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.037)]
+// CHECK:STDOUT:     %T.ref.loc14: %K.type = name_ref T, %T.loc14_14.1 [symbolic = %T.loc14_14.2 (constants.%T.5d8)]
+// CHECK:STDOUT:     %T.as_type.loc14_21.1: type = facet_access_type %T.ref.loc14 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.2cc)]
+// CHECK:STDOUT:     %.loc14_21: type = converted %T.ref.loc14, %T.as_type.loc14_21.1 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.2cc)]
 // CHECK:STDOUT:     %Interface.ref.loc14: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc14_18: type = splice_block %K.ref.loc14 [concrete = constants.%K.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %K.ref.loc14: type = name_ref K, file.%K.decl [concrete = constants.%K.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc14_14.1: %K.type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T.09f)]
+// CHECK:STDOUT:     %T.loc14_14.1: %K.type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T.5d8)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Interface.impl_witness_table.loc14 = impl_witness_table (), @T.as_type.as.Interface.impl.c93 [concrete]
-// CHECK:STDOUT:   %Interface.impl_witness.loc14: <witness> = impl_witness %Interface.impl_witness_table.loc14, @T.as_type.as.Interface.impl.c93(constants.%T.09f) [symbolic = @T.as_type.as.Interface.impl.c93.%Interface.impl_witness (constants.%Interface.impl_witness.b9e)]
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.9e6 [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.86b = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness_table.loc14 = impl_witness_table (), @T.as_type.as.Interface.impl.9ad [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness.loc14: <witness> = impl_witness %Interface.impl_witness_table.loc14, @T.as_type.as.Interface.impl.9ad(constants.%T.5d8) [symbolic = @T.as_type.as.Interface.impl.9ad.%Interface.impl_witness (constants.%Interface.impl_witness.b3e)]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.6e8 [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.01d = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc15: %L.type = name_ref T, %T.loc15_14.1 [symbolic = %T.loc15_14.2 (constants.%T.1d2)]
-// CHECK:STDOUT:     %T.as_type.loc15_21.1: type = facet_access_type %T.ref.loc15 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.0ed)]
-// CHECK:STDOUT:     %.loc15_21: type = converted %T.ref.loc15, %T.as_type.loc15_21.1 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.0ed)]
+// CHECK:STDOUT:     %T.ref.loc15: %L.type = name_ref T, %T.loc15_14.1 [symbolic = %T.loc15_14.2 (constants.%T.4ff)]
+// CHECK:STDOUT:     %T.as_type.loc15_21.1: type = facet_access_type %T.ref.loc15 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.343)]
+// CHECK:STDOUT:     %.loc15_21: type = converted %T.ref.loc15, %T.as_type.loc15_21.1 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.343)]
 // CHECK:STDOUT:     %Interface.ref.loc15: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc15_18: type = splice_block %L.ref.loc15 [concrete = constants.%L.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %L.ref.loc15: type = name_ref L, file.%L.decl [concrete = constants.%L.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc15_14.1: %L.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T.1d2)]
+// CHECK:STDOUT:     %T.loc15_14.1: %L.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T.4ff)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Interface.impl_witness_table.loc15 = impl_witness_table (), @T.as_type.as.Interface.impl.9e6 [concrete]
-// CHECK:STDOUT:   %Interface.impl_witness.loc15: <witness> = impl_witness %Interface.impl_witness_table.loc15, @T.as_type.as.Interface.impl.9e6(constants.%T.1d2) [symbolic = @T.as_type.as.Interface.impl.9e6.%Interface.impl_witness (constants.%Interface.impl_witness.e9d)]
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.c3d [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness_table.loc15 = impl_witness_table (), @T.as_type.as.Interface.impl.6e8 [concrete]
+// CHECK:STDOUT:   %Interface.impl_witness.loc15: <witness> = impl_witness %Interface.impl_witness_table.loc15, @T.as_type.as.Interface.impl.6e8(constants.%T.4ff) [symbolic = @T.as_type.as.Interface.impl.6e8.%Interface.impl_witness (constants.%Interface.impl_witness.4c0)]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.dcc [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc19: %I.type = name_ref T, %T.loc19 [symbolic = %T.loc12_14.2 (constants.%T.826)]
-// CHECK:STDOUT:     %T.as_type.loc19: type = facet_access_type %T.ref.loc19 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.b70)]
-// CHECK:STDOUT:     %.loc19_21: type = converted %T.ref.loc19, %T.as_type.loc19 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.b70)]
+// CHECK:STDOUT:     %T.ref.loc19: %I.type = name_ref T, %T.loc19 [symbolic = %T.loc12_14.2 (constants.%T.ce4)]
+// CHECK:STDOUT:     %T.as_type.loc19: type = facet_access_type %T.ref.loc19 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.4af)]
+// CHECK:STDOUT:     %.loc19_21: type = converted %T.ref.loc19, %T.as_type.loc19 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.4af)]
 // CHECK:STDOUT:     %Interface.ref.loc19: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc19_18: type = splice_block %I.ref.loc19 [concrete = constants.%I.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %I.ref.loc19: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc19: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.826)]
+// CHECK:STDOUT:     %T.loc19: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.ce4)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.793 [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.28e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.d7c [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.fdf = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc27: %J.type = name_ref T, %T.loc27 [symbolic = %T.loc13_14.2 (constants.%T.ccd)]
-// CHECK:STDOUT:     %T.as_type.loc27: type = facet_access_type %T.ref.loc27 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.3df)]
-// CHECK:STDOUT:     %.loc27_21: type = converted %T.ref.loc27, %T.as_type.loc27 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.3df)]
+// CHECK:STDOUT:     %T.ref.loc27: %J.type = name_ref T, %T.loc27 [symbolic = %T.loc13_14.2 (constants.%T.212)]
+// CHECK:STDOUT:     %T.as_type.loc27: type = facet_access_type %T.ref.loc27 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.e94)]
+// CHECK:STDOUT:     %.loc27_21: type = converted %T.ref.loc27, %T.as_type.loc27 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.e94)]
 // CHECK:STDOUT:     %Interface.ref.loc27: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc27_18: type = splice_block %J.ref.loc27 [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %J.ref.loc27: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc27: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc13_14.2 (constants.%T.ccd)]
+// CHECK:STDOUT:     %T.loc27: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc13_14.2 (constants.%T.212)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.c93 [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.4a6 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.9ad [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.085 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc35: %K.type = name_ref T, %T.loc35 [symbolic = %T.loc14_14.2 (constants.%T.09f)]
-// CHECK:STDOUT:     %T.as_type.loc35: type = facet_access_type %T.ref.loc35 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.037)]
-// CHECK:STDOUT:     %.loc35_21: type = converted %T.ref.loc35, %T.as_type.loc35 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.037)]
+// CHECK:STDOUT:     %T.ref.loc35: %K.type = name_ref T, %T.loc35 [symbolic = %T.loc14_14.2 (constants.%T.5d8)]
+// CHECK:STDOUT:     %T.as_type.loc35: type = facet_access_type %T.ref.loc35 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.2cc)]
+// CHECK:STDOUT:     %.loc35_21: type = converted %T.ref.loc35, %T.as_type.loc35 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.2cc)]
 // CHECK:STDOUT:     %Interface.ref.loc35: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc35_18: type = splice_block %K.ref.loc35 [concrete = constants.%K.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %K.ref.loc35: type = name_ref K, file.%K.decl [concrete = constants.%K.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc35: %K.type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T.09f)]
+// CHECK:STDOUT:     %T.loc35: %K.type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T.5d8)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.9e6 [concrete] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.86b = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.Interface.impl.6e8 [concrete] {
+// CHECK:STDOUT:     %T.patt: %pattern_type.01d = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %T.ref.loc43: %L.type = name_ref T, %T.loc43 [symbolic = %T.loc15_14.2 (constants.%T.1d2)]
-// CHECK:STDOUT:     %T.as_type.loc43: type = facet_access_type %T.ref.loc43 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.0ed)]
-// CHECK:STDOUT:     %.loc43_21: type = converted %T.ref.loc43, %T.as_type.loc43 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.0ed)]
+// CHECK:STDOUT:     %T.ref.loc43: %L.type = name_ref T, %T.loc43 [symbolic = %T.loc15_14.2 (constants.%T.4ff)]
+// CHECK:STDOUT:     %T.as_type.loc43: type = facet_access_type %T.ref.loc43 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.343)]
+// CHECK:STDOUT:     %.loc43_21: type = converted %T.ref.loc43, %T.as_type.loc43 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.343)]
 // CHECK:STDOUT:     %Interface.ref.loc43: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
 // CHECK:STDOUT:     %.loc43_18: type = splice_block %L.ref.loc43 [concrete = constants.%L.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %L.ref.loc43: type = name_ref L, file.%L.decl [concrete = constants.%L.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc43: %L.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T.1d2)]
+// CHECK:STDOUT:     %T.loc43: %L.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T.4ff)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -295,7 +295,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -303,7 +303,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -311,7 +311,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @K {
-// CHECK:STDOUT:   %Self: %K.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.09f]
+// CHECK:STDOUT:   %Self: %K.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.5d8]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -319,17 +319,17 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @L {
-// CHECK:STDOUT:   %Self: %L.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1d2]
+// CHECK:STDOUT:   %Self: %L.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4ff]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.c3d(%T.loc12_14.1: %I.type) {
-// CHECK:STDOUT:   %T.loc12_14.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.826)]
-// CHECK:STDOUT:   %T.as_type.loc12_21.2: type = facet_access_type %T.loc12_14.2 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.b70)]
-// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc12, @T.as_type.as.Interface.impl.c3d(%T.loc12_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.a14)]
+// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.dcc(%T.loc12_14.1: %I.type) {
+// CHECK:STDOUT:   %T.loc12_14.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.ce4)]
+// CHECK:STDOUT:   %T.as_type.loc12_21.2: type = facet_access_type %T.loc12_14.2 [symbolic = %T.as_type.loc12_21.2 (constants.%T.as_type.4af)]
+// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc12, @T.as_type.as.Interface.impl.dcc(%T.loc12_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.cda)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -339,10 +339,10 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.793(%T.loc13_14.1: %J.type) {
-// CHECK:STDOUT:   %T.loc13_14.2: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc13_14.2 (constants.%T.ccd)]
-// CHECK:STDOUT:   %T.as_type.loc13_21.2: type = facet_access_type %T.loc13_14.2 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.3df)]
-// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc13, @T.as_type.as.Interface.impl.793(%T.loc13_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.608)]
+// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.d7c(%T.loc13_14.1: %J.type) {
+// CHECK:STDOUT:   %T.loc13_14.2: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc13_14.2 (constants.%T.212)]
+// CHECK:STDOUT:   %T.as_type.loc13_21.2: type = facet_access_type %T.loc13_14.2 [symbolic = %T.as_type.loc13_21.2 (constants.%T.as_type.e94)]
+// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc13, @T.as_type.as.Interface.impl.d7c(%T.loc13_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.282)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -352,10 +352,10 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.c93(%T.loc14_14.1: %K.type) {
-// CHECK:STDOUT:   %T.loc14_14.2: %K.type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T.09f)]
-// CHECK:STDOUT:   %T.as_type.loc14_21.2: type = facet_access_type %T.loc14_14.2 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.037)]
-// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc14, @T.as_type.as.Interface.impl.c93(%T.loc14_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.b9e)]
+// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.9ad(%T.loc14_14.1: %K.type) {
+// CHECK:STDOUT:   %T.loc14_14.2: %K.type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T.5d8)]
+// CHECK:STDOUT:   %T.as_type.loc14_21.2: type = facet_access_type %T.loc14_14.2 [symbolic = %T.as_type.loc14_21.2 (constants.%T.as_type.2cc)]
+// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc14, @T.as_type.as.Interface.impl.9ad(%T.loc14_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.b3e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -365,10 +365,10 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.9e6(%T.loc15_14.1: %L.type) {
-// CHECK:STDOUT:   %T.loc15_14.2: %L.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T.1d2)]
-// CHECK:STDOUT:   %T.as_type.loc15_21.2: type = facet_access_type %T.loc15_14.2 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.0ed)]
-// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc15, @T.as_type.as.Interface.impl.9e6(%T.loc15_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.e9d)]
+// CHECK:STDOUT: generic impl @T.as_type.as.Interface.impl.6e8(%T.loc15_14.1: %L.type) {
+// CHECK:STDOUT:   %T.loc15_14.2: %L.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T.4ff)]
+// CHECK:STDOUT:   %T.as_type.loc15_21.2: type = facet_access_type %T.loc15_14.2 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type.343)]
+// CHECK:STDOUT:   %Interface.impl_witness: <witness> = impl_witness file.%Interface.impl_witness_table.loc15, @T.as_type.as.Interface.impl.6e8(%T.loc15_14.2) [symbolic = %Interface.impl_witness (constants.%Interface.impl_witness.4c0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -378,42 +378,42 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.c3d(constants.%T.826) {
-// CHECK:STDOUT:   %T.loc12_14.2 => constants.%T.826
-// CHECK:STDOUT:   %T.as_type.loc12_21.2 => constants.%T.as_type.b70
-// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.a14
+// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.dcc(constants.%T.ce4) {
+// CHECK:STDOUT:   %T.loc12_14.2 => constants.%T.ce4
+// CHECK:STDOUT:   %T.as_type.loc12_21.2 => constants.%T.as_type.4af
+// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.cda
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.793(constants.%T.ccd) {
-// CHECK:STDOUT:   %T.loc13_14.2 => constants.%T.ccd
-// CHECK:STDOUT:   %T.as_type.loc13_21.2 => constants.%T.as_type.3df
-// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.608
+// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.d7c(constants.%T.212) {
+// CHECK:STDOUT:   %T.loc13_14.2 => constants.%T.212
+// CHECK:STDOUT:   %T.as_type.loc13_21.2 => constants.%T.as_type.e94
+// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.282
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.c93(constants.%T.09f) {
-// CHECK:STDOUT:   %T.loc14_14.2 => constants.%T.09f
-// CHECK:STDOUT:   %T.as_type.loc14_21.2 => constants.%T.as_type.037
-// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.b9e
+// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.9ad(constants.%T.5d8) {
+// CHECK:STDOUT:   %T.loc14_14.2 => constants.%T.5d8
+// CHECK:STDOUT:   %T.as_type.loc14_21.2 => constants.%T.as_type.2cc
+// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.b3e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.9e6(constants.%T.1d2) {
-// CHECK:STDOUT:   %T.loc15_14.2 => constants.%T.1d2
-// CHECK:STDOUT:   %T.as_type.loc15_21.2 => constants.%T.as_type.0ed
-// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.e9d
+// CHECK:STDOUT: specific @T.as_type.as.Interface.impl.6e8(constants.%T.4ff) {
+// CHECK:STDOUT:   %T.loc15_14.2 => constants.%T.4ff
+// CHECK:STDOUT:   %T.as_type.loc15_21.2 => constants.%T.as_type.343
+// CHECK:STDOUT:   %Interface.impl_witness => constants.%Interface.impl_witness.4c0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_same_self_and_interface_redefined.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table, @T.as_type.as.J.impl.bfd509.1(%T) [symbolic]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table, @T.as_type.as.J.impl.65564f.1(%T) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -432,7 +432,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
-// CHECK:STDOUT:   impl_decl @T.as_type.as.J.impl.bfd509.1 [concrete] {
+// CHECK:STDOUT:   impl_decl @T.as_type.as.J.impl.65564f.1 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref: %I.type = name_ref T, %T.loc7_14.1 [symbolic = %T.loc7_14.2 (constants.%T)]
@@ -445,9 +445,9 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %T.loc7_14.1: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc7_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (), @T.as_type.as.J.impl.bfd509.1 [concrete]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table, @T.as_type.as.J.impl.bfd509.1(constants.%T) [symbolic = @T.as_type.as.J.impl.bfd509.1.%J.impl_witness (constants.%J.impl_witness)]
-// CHECK:STDOUT:   impl_decl @T.as_type.as.J.impl.bfd509.2 [concrete] {
+// CHECK:STDOUT:   %J.impl_witness_table = impl_witness_table (), @T.as_type.as.J.impl.65564f.1 [concrete]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness %J.impl_witness_table, @T.as_type.as.J.impl.65564f.1(constants.%T) [symbolic = @T.as_type.as.J.impl.65564f.1.%J.impl_witness (constants.%J.impl_witness)]
+// CHECK:STDOUT:   impl_decl @T.as_type.as.J.impl.65564f.2 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref: %I.type = name_ref T, %T.loc15_14.1 [symbolic = %T.loc15_14.2 (constants.%T)]
@@ -463,7 +463,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -471,17 +471,17 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as_type.as.J.impl.bfd509.1(%T.loc7_14.1: %I.type) {
+// CHECK:STDOUT: generic impl @T.as_type.as.J.impl.65564f.1(%T.loc7_14.1: %I.type) {
 // CHECK:STDOUT:   %T.loc7_14.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc7_14.2 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc7_21.2: type = facet_access_type %T.loc7_14.2 [symbolic = %T.as_type.loc7_21.2 (constants.%T.as_type)]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table, @T.as_type.as.J.impl.bfd509.1(%T.loc7_14.2) [symbolic = %J.impl_witness (constants.%J.impl_witness)]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table, @T.as_type.as.J.impl.65564f.1(%T.loc7_14.2) [symbolic = %J.impl_witness (constants.%J.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -491,7 +491,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as_type.as.J.impl.bfd509.2(%T.loc15_14.1: %I.type) {
+// CHECK:STDOUT: generic impl @T.as_type.as.J.impl.65564f.2(%T.loc15_14.1: %I.type) {
 // CHECK:STDOUT:   %T.loc15_14.2: %I.type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.2 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc15_21.2: type = facet_access_type %T.loc15_14.2 [symbolic = %T.as_type.loc15_21.2 (constants.%T.as_type)]
 // CHECK:STDOUT:
@@ -503,13 +503,13 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.J.impl.bfd509.1(constants.%T) {
+// CHECK:STDOUT: specific @T.as_type.as.J.impl.65564f.1(constants.%T) {
 // CHECK:STDOUT:   %T.loc7_14.2 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc7_21.2 => constants.%T.as_type
 // CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as_type.as.J.impl.bfd509.2(constants.%T) {
+// CHECK:STDOUT: specific @T.as_type.as.J.impl.65564f.2(constants.%T) {
 // CHECK:STDOUT:   %T.loc15_14.2 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc15_21.2 => constants.%T.as_type
 // CHECK:STDOUT: }
@@ -520,11 +520,11 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.215123.1: <witness> = impl_witness file.%I.impl_witness_table.loc9 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.70e5fb.1: <witness> = impl_witness file.%I.impl_witness_table.loc9 [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (type, type) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type = tuple_value (%C, %C) [concrete]
-// CHECK:STDOUT:   %I.impl_witness.215123.2: <witness> = impl_witness file.%I.impl_witness_table.loc17 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.70e5fb.2: <witness> = impl_witness file.%I.impl_witness_table.loc17 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -543,13 +543,13 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.7704ae.1 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1bf8db.1 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc9 = impl_witness_table (), @C.as.I.impl.7704ae.1 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc9: <witness> = impl_witness %I.impl_witness_table.loc9 [concrete = constants.%I.impl_witness.215123.1]
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.7704ae.2 [concrete] {} {
+// CHECK:STDOUT:   %I.impl_witness_table.loc9 = impl_witness_table (), @C.as.I.impl.1bf8db.1 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc9: <witness> = impl_witness %I.impl_witness_table.loc9 [concrete = constants.%I.impl_witness.70e5fb.1]
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1bf8db.2 [concrete] {} {
 // CHECK:STDOUT:     %C.ref.loc17_7: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %C.ref.loc17_10: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %.loc17_11.1: %tuple.type = tuple_literal (%C.ref.loc17_7, %C.ref.loc17_10)
@@ -559,8 +559,8 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:     %tuple.elem0: type = tuple_access %.loc17_11.2, element0 [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc17 = impl_witness_table (), @C.as.I.impl.7704ae.2 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc17: <witness> = impl_witness %I.impl_witness_table.loc17 [concrete = constants.%I.impl_witness.215123.2]
+// CHECK:STDOUT:   %I.impl_witness_table.loc17 = impl_witness_table (), @C.as.I.impl.1bf8db.2 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc17: <witness> = impl_witness %I.impl_witness_table.loc17 [concrete = constants.%I.impl_witness.70e5fb.2]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
@@ -571,12 +571,12 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl.7704ae.1: %C.ref as %I.ref {
+// CHECK:STDOUT: impl @C.as.I.impl.1bf8db.1: %C.ref as %I.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness.loc9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl.7704ae.2: %tuple.elem0 as %I.ref {
+// CHECK:STDOUT: impl @C.as.I.impl.1bf8db.2: %tuple.elem0 as %I.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness.loc17
 // CHECK:STDOUT: }
@@ -587,28 +587,28 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @T.as.I.impl.2caff2.1(%T) [symbolic]
-// CHECK:STDOUT:   %T.as.I.impl.A.type: type = fn_type @T.as.I.impl.A, @T.as.I.impl.2caff2.1(%T) [symbolic]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @T.as.I.impl.c81295.1(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.I.impl.A.type: type = fn_type @T.as.I.impl.A, @T.as.I.impl.c81295.1(%T) [symbolic]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %T.as.I.impl.A: %T.as.I.impl.A.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %T.as.I.impl.B.type: type = fn_type @T.as.I.impl.B, @T.as.I.impl.2caff2.2(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.I.impl.B.type: type = fn_type @T.as.I.impl.B, @T.as.I.impl.c81295.2(%T) [symbolic]
 // CHECK:STDOUT:   %T.as.I.impl.B: %T.as.I.impl.B.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.I.impl.C.type: type = fn_type @T.as.I.impl.C, @T.as.I.impl.2caff2.2(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.I.impl.C.type: type = fn_type @T.as.I.impl.C, @T.as.I.impl.c81295.2(%T) [symbolic]
 // CHECK:STDOUT:   %T.as.I.impl.C: %T.as.I.impl.C.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %T.as.I.impl.D.type: type = fn_type @T.as.I.impl.D, @T.as.I.impl.2caff2.2(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.I.impl.D.type: type = fn_type @T.as.I.impl.D, @T.as.I.impl.c81295.2(%T) [symbolic]
 // CHECK:STDOUT:   %T.as.I.impl.D: %T.as.I.impl.D.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %T.as.I.impl.C.specific_fn: <specific function> = specific_function %T.as.I.impl.C, @T.as.I.impl.C(%T) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -627,7 +627,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
-// CHECK:STDOUT:   impl_decl @T.as.I.impl.2caff2.1 [concrete] {
+// CHECK:STDOUT:   impl_decl @T.as.I.impl.c81295.1 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc4_14.2 [symbolic = %T.loc4_14.1 (constants.%T)]
@@ -635,9 +635,9 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc4_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_14.1 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @T.as.I.impl.2caff2.1 [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @T.as.I.impl.2caff2.1(constants.%T) [symbolic = @T.as.I.impl.2caff2.1.%I.impl_witness (constants.%I.impl_witness)]
-// CHECK:STDOUT:   impl_decl @T.as.I.impl.2caff2.2 [concrete] {
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @T.as.I.impl.c81295.1 [concrete]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @T.as.I.impl.c81295.1(constants.%T) [symbolic = @T.as.I.impl.c81295.1.%I.impl_witness (constants.%I.impl_witness)]
+// CHECK:STDOUT:   impl_decl @T.as.I.impl.c81295.2 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc15_14.2 [symbolic = %T.loc15_14.1 (constants.%T)]
@@ -648,23 +648,23 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as.I.impl.2caff2.1(%T.loc4_14.2: type) {
+// CHECK:STDOUT: generic impl @T.as.I.impl.c81295.1(%T.loc4_14.2: type) {
 // CHECK:STDOUT:   %T.loc4_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_14.1 (constants.%T)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @T.as.I.impl.2caff2.1(%T.loc4_14.1) [symbolic = %I.impl_witness (constants.%I.impl_witness)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @T.as.I.impl.c81295.1(%T.loc4_14.1) [symbolic = %I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.I.impl.A.type: type = fn_type @T.as.I.impl.A, @T.as.I.impl.2caff2.1(%T.loc4_14.1) [symbolic = %T.as.I.impl.A.type (constants.%T.as.I.impl.A.type)]
-// CHECK:STDOUT:   %T.as.I.impl.A: @T.as.I.impl.2caff2.1.%T.as.I.impl.A.type (%T.as.I.impl.A.type) = struct_value () [symbolic = %T.as.I.impl.A (constants.%T.as.I.impl.A)]
+// CHECK:STDOUT:   %T.as.I.impl.A.type: type = fn_type @T.as.I.impl.A, @T.as.I.impl.c81295.1(%T.loc4_14.1) [symbolic = %T.as.I.impl.A.type (constants.%T.as.I.impl.A.type)]
+// CHECK:STDOUT:   %T.as.I.impl.A: @T.as.I.impl.c81295.1.%T.as.I.impl.A.type (%T.as.I.impl.A.type) = struct_value () [symbolic = %T.as.I.impl.A (constants.%T.as.I.impl.A)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %T.ref as %I.ref {
-// CHECK:STDOUT:     %T.as.I.impl.A.decl: @T.as.I.impl.2caff2.1.%T.as.I.impl.A.type (%T.as.I.impl.A.type) = fn_decl @T.as.I.impl.A [symbolic = @T.as.I.impl.2caff2.1.%T.as.I.impl.A (constants.%T.as.I.impl.A)] {} {}
+// CHECK:STDOUT:     %T.as.I.impl.A.decl: @T.as.I.impl.c81295.1.%T.as.I.impl.A.type (%T.as.I.impl.A.type) = fn_decl @T.as.I.impl.A [symbolic = @T.as.I.impl.c81295.1.%T.as.I.impl.A (constants.%T.as.I.impl.A)] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .A = %T.as.I.impl.A.decl
@@ -672,20 +672,20 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as.I.impl.2caff2.2(%T.loc15_14.2: type) {
+// CHECK:STDOUT: generic impl @T.as.I.impl.c81295.2(%T.loc15_14.2: type) {
 // CHECK:STDOUT:   %T.loc15_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_14.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.I.impl.B.type: type = fn_type @T.as.I.impl.B, @T.as.I.impl.2caff2.2(%T.loc15_14.1) [symbolic = %T.as.I.impl.B.type (constants.%T.as.I.impl.B.type)]
-// CHECK:STDOUT:   %T.as.I.impl.B: @T.as.I.impl.2caff2.2.%T.as.I.impl.B.type (%T.as.I.impl.B.type) = struct_value () [symbolic = %T.as.I.impl.B (constants.%T.as.I.impl.B)]
-// CHECK:STDOUT:   %T.as.I.impl.C.type: type = fn_type @T.as.I.impl.C, @T.as.I.impl.2caff2.2(%T.loc15_14.1) [symbolic = %T.as.I.impl.C.type (constants.%T.as.I.impl.C.type)]
-// CHECK:STDOUT:   %T.as.I.impl.C: @T.as.I.impl.2caff2.2.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = struct_value () [symbolic = %T.as.I.impl.C (constants.%T.as.I.impl.C)]
-// CHECK:STDOUT:   %T.as.I.impl.D.type: type = fn_type @T.as.I.impl.D, @T.as.I.impl.2caff2.2(%T.loc15_14.1) [symbolic = %T.as.I.impl.D.type (constants.%T.as.I.impl.D.type)]
-// CHECK:STDOUT:   %T.as.I.impl.D: @T.as.I.impl.2caff2.2.%T.as.I.impl.D.type (%T.as.I.impl.D.type) = struct_value () [symbolic = %T.as.I.impl.D (constants.%T.as.I.impl.D)]
+// CHECK:STDOUT:   %T.as.I.impl.B.type: type = fn_type @T.as.I.impl.B, @T.as.I.impl.c81295.2(%T.loc15_14.1) [symbolic = %T.as.I.impl.B.type (constants.%T.as.I.impl.B.type)]
+// CHECK:STDOUT:   %T.as.I.impl.B: @T.as.I.impl.c81295.2.%T.as.I.impl.B.type (%T.as.I.impl.B.type) = struct_value () [symbolic = %T.as.I.impl.B (constants.%T.as.I.impl.B)]
+// CHECK:STDOUT:   %T.as.I.impl.C.type: type = fn_type @T.as.I.impl.C, @T.as.I.impl.c81295.2(%T.loc15_14.1) [symbolic = %T.as.I.impl.C.type (constants.%T.as.I.impl.C.type)]
+// CHECK:STDOUT:   %T.as.I.impl.C: @T.as.I.impl.c81295.2.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = struct_value () [symbolic = %T.as.I.impl.C (constants.%T.as.I.impl.C)]
+// CHECK:STDOUT:   %T.as.I.impl.D.type: type = fn_type @T.as.I.impl.D, @T.as.I.impl.c81295.2(%T.loc15_14.1) [symbolic = %T.as.I.impl.D.type (constants.%T.as.I.impl.D.type)]
+// CHECK:STDOUT:   %T.as.I.impl.D: @T.as.I.impl.c81295.2.%T.as.I.impl.D.type (%T.as.I.impl.D.type) = struct_value () [symbolic = %T.as.I.impl.D (constants.%T.as.I.impl.D)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %T.ref as %I.ref {
-// CHECK:STDOUT:     %T.as.I.impl.B.decl: @T.as.I.impl.2caff2.2.%T.as.I.impl.B.type (%T.as.I.impl.B.type) = fn_decl @T.as.I.impl.B [symbolic = @T.as.I.impl.2caff2.2.%T.as.I.impl.B (constants.%T.as.I.impl.B)] {} {}
-// CHECK:STDOUT:     %T.as.I.impl.C.decl: @T.as.I.impl.2caff2.2.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = fn_decl @T.as.I.impl.C [symbolic = @T.as.I.impl.2caff2.2.%T.as.I.impl.C (constants.%T.as.I.impl.C)] {
+// CHECK:STDOUT:     %T.as.I.impl.B.decl: @T.as.I.impl.c81295.2.%T.as.I.impl.B.type (%T.as.I.impl.B.type) = fn_decl @T.as.I.impl.B [symbolic = @T.as.I.impl.c81295.2.%T.as.I.impl.B (constants.%T.as.I.impl.B)] {} {}
+// CHECK:STDOUT:     %T.as.I.impl.C.decl: @T.as.I.impl.c81295.2.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = fn_decl @T.as.I.impl.C [symbolic = @T.as.I.impl.c81295.2.%T.as.I.impl.C (constants.%T.as.I.impl.C)] {
 // CHECK:STDOUT:       %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: %pattern_type.cb1 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -694,7 +694,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:       %return.param: ref %empty_tuple.type = out_param call_param0
 // CHECK:STDOUT:       %return: ref %empty_tuple.type = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.as.I.impl.D.decl: @T.as.I.impl.2caff2.2.%T.as.I.impl.D.type (%T.as.I.impl.D.type) = fn_decl @T.as.I.impl.D [symbolic = @T.as.I.impl.2caff2.2.%T.as.I.impl.D (constants.%T.as.I.impl.D)] {
+// CHECK:STDOUT:     %T.as.I.impl.D.decl: @T.as.I.impl.c81295.2.%T.as.I.impl.D.type (%T.as.I.impl.D.type) = fn_decl @T.as.I.impl.D [symbolic = @T.as.I.impl.c81295.2.%T.as.I.impl.D (constants.%T.as.I.impl.D)] {
 // CHECK:STDOUT:       %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: %pattern_type.cb1 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -712,7 +712,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @T.as.I.impl.A(@T.as.I.impl.2caff2.1.%T.loc4_14.2: type) {
+// CHECK:STDOUT: generic fn @T.as.I.impl.A(@T.as.I.impl.c81295.1.%T.loc4_14.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -721,7 +721,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @T.as.I.impl.B(@T.as.I.impl.2caff2.2.%T.loc15_14.2: type) {
+// CHECK:STDOUT: generic fn @T.as.I.impl.B(@T.as.I.impl.c81295.2.%T.loc15_14.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -730,7 +730,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @T.as.I.impl.C(@T.as.I.impl.2caff2.2.%T.loc15_14.2: type) {
+// CHECK:STDOUT: generic fn @T.as.I.impl.C(@T.as.I.impl.c81295.2.%T.loc15_14.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> %empty_tuple.type {
@@ -742,16 +742,16 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @T.as.I.impl.D(@T.as.I.impl.2caff2.2.%T.loc15_14.2: type) {
+// CHECK:STDOUT: generic fn @T.as.I.impl.D(@T.as.I.impl.c81295.2.%T.loc15_14.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %T.as.I.impl.C.type: type = fn_type @T.as.I.impl.C, @T.as.I.impl.2caff2.2(%T) [symbolic = %T.as.I.impl.C.type (constants.%T.as.I.impl.C.type)]
+// CHECK:STDOUT:   %T.as.I.impl.C.type: type = fn_type @T.as.I.impl.C, @T.as.I.impl.c81295.2(%T) [symbolic = %T.as.I.impl.C.type (constants.%T.as.I.impl.C.type)]
 // CHECK:STDOUT:   %T.as.I.impl.C: @T.as.I.impl.D.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = struct_value () [symbolic = %T.as.I.impl.C (constants.%T.as.I.impl.C)]
 // CHECK:STDOUT:   %T.as.I.impl.C.specific_fn.loc21_12.2: <specific function> = specific_function %T.as.I.impl.C, @T.as.I.impl.C(%T) [symbolic = %T.as.I.impl.C.specific_fn.loc21_12.2 (constants.%T.as.I.impl.C.specific_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> %empty_tuple.type {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %.loc21_12: @T.as.I.impl.D.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = specific_constant @T.as.I.impl.2caff2.2.%T.as.I.impl.C.decl, @T.as.I.impl.2caff2.2(constants.%T) [symbolic = %T.as.I.impl.C (constants.%T.as.I.impl.C)]
+// CHECK:STDOUT:     %.loc21_12: @T.as.I.impl.D.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = specific_constant @T.as.I.impl.c81295.2.%T.as.I.impl.C.decl, @T.as.I.impl.c81295.2(constants.%T) [symbolic = %T.as.I.impl.C (constants.%T.as.I.impl.C)]
 // CHECK:STDOUT:     %C.ref: @T.as.I.impl.D.%T.as.I.impl.C.type (%T.as.I.impl.C.type) = name_ref C, %.loc21_12 [symbolic = %T.as.I.impl.C (constants.%T.as.I.impl.C)]
 // CHECK:STDOUT:     %T.as.I.impl.C.specific_fn.loc21_12.1: <specific function> = specific_function %C.ref, @T.as.I.impl.C(constants.%T) [symbolic = %T.as.I.impl.C.specific_fn.loc21_12.2 (constants.%T.as.I.impl.C.specific_fn)]
 // CHECK:STDOUT:     %T.as.I.impl.C.call: init %empty_tuple.type = call %T.as.I.impl.C.specific_fn.loc21_12.1()
@@ -759,8 +759,8 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:     %.loc21_14.2: ref %empty_tuple.type = temporary %.loc21_14.1, %T.as.I.impl.C.call
 // CHECK:STDOUT:     %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:     %.loc21_15: %empty_tuple.type = converted %T.as.I.impl.C.call, %tuple [concrete = constants.%empty_tuple]
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc21_14.2, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc21_14.2, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:     %bound_method: <bound method> = bound_method %.loc21_14.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:     %addr: %ptr.843 = addr_of %.loc21_14.2
 // CHECK:STDOUT:     %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -768,7 +768,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.I.impl.2caff2.1(constants.%T) {
+// CHECK:STDOUT: specific @T.as.I.impl.c81295.1(constants.%T) {
 // CHECK:STDOUT:   %T.loc4_14.1 => constants.%T
 // CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT:
@@ -779,7 +779,7 @@ impl forall [T:! type] T as I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.I.impl.A(constants.%T) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.I.impl.2caff2.2(constants.%T) {
+// CHECK:STDOUT: specific @T.as.I.impl.c81295.2(constants.%T) {
 // CHECK:STDOUT:   %T.loc15_14.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
diff --git a/toolchain/check/testdata/impl/impl_as.carbon b/toolchain/check/testdata/impl/impl_as.carbon
index 04ab895af5d2..f1c65008b20f 100644
--- a/toolchain/check/testdata/impl/impl_as.carbon
+++ b/toolchain/check/testdata/impl/impl_as.carbon
@@ -29,7 +29,7 @@ class C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Simple.type: type = facet_type <@Simple> [concrete]
-// CHECK:STDOUT:   %Self.3c9: %Simple.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a09: %Simple.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Simple.F.type: type = fn_type @Simple.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Simple.F: %Simple.F.type = struct_value () [concrete]
@@ -42,7 +42,7 @@ class C {
 // CHECK:STDOUT:   %Simple.facet: %Simple.type = facet_value %C, (%Simple.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -74,7 +74,7 @@ class C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Simple {
-// CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3c9]
+// CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a09]
 // CHECK:STDOUT:   %Simple.F.decl: %Simple.F.type = fn_decl @Simple.F [concrete = constants.%Simple.F] {} {}
 // CHECK:STDOUT:   %assoc0: %Simple.assoc_type = assoc_entity element0, %Simple.F.decl [concrete = constants.%assoc0.d57]
 // CHECK:STDOUT:
@@ -119,7 +119,7 @@ class C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -154,7 +154,7 @@ class C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Simple.F(constants.%Self.3c9) {}
+// CHECK:STDOUT: specific @Simple.F(constants.%Self.a09) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Simple.F(constants.%Simple.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/impl_assoc_const_with_prelude.carbon b/toolchain/check/testdata/impl/impl_assoc_const_with_prelude.carbon
index 947b7263c4a4..97274e57c2c8 100644
--- a/toolchain/check/testdata/impl/impl_assoc_const_with_prelude.carbon
+++ b/toolchain/check/testdata/impl/impl_assoc_const_with_prelude.carbon
@@ -36,7 +36,7 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.8268: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
@@ -48,11 +48,11 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   %struct_type.a.b.fe2: type = struct_type {.a: bool, .b: %tuple.type.d07} [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.e7f: %I.assoc_type = assoc_entity element0, @I.%X [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type.541: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type.541, (%I.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.74b: %struct_type.a.b.fe2 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type.154: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type.154, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.197: %struct_type.a.b.fe2 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
@@ -60,49 +60,49 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   %struct_type.a.b.aa4: type = struct_type {.a: bool, .b: %tuple.type.f94} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
 // CHECK:STDOUT:   %DivWith.type.fc9: type = generic_interface_type @DivWith [concrete]
 // CHECK:STDOUT:   %DivWith.generic: %DivWith.type.fc9 = struct_value () [concrete]
-// CHECK:STDOUT:   %DivWith.type.f3e: type = facet_type <@DivWith, @DivWith(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %DivWith.type.234: type = facet_type <@DivWith, @DivWith(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %DivWith.Op.type.c64: type = fn_type @DivWith.Op, @DivWith(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %SubWith.type.378: type = generic_interface_type @SubWith [concrete]
 // CHECK:STDOUT:   %SubWith.generic: %SubWith.type.378 = struct_value () [concrete]
-// CHECK:STDOUT:   %SubWith.type.039: type = facet_type <@SubWith, @SubWith(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %SubWith.type.a89: type = facet_type <@SubWith, @SubWith(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %SubWith.Op.type.95d: type = fn_type @SubWith.Op, @SubWith(Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.fe2 = struct_value (%true, %tuple) [concrete]
 // CHECK:STDOUT:   %false: bool = bool_literal false [concrete]
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %SubWith.impl_witness.72e: <witness> = impl_witness imports.%SubWith.impl_witness_table.ad5 [concrete]
-// CHECK:STDOUT:   %SubWith.facet: %SubWith.type.039 = facet_value Core.IntLiteral, (%SubWith.impl_witness.72e) [concrete]
-// CHECK:STDOUT:   %.4ae: type = fn_type_with_self_type %SubWith.Op.type.95d, %SubWith.facet [concrete]
+// CHECK:STDOUT:   %SubWith.impl_witness.7e9: <witness> = impl_witness imports.%SubWith.impl_witness_table.004 [concrete]
+// CHECK:STDOUT:   %SubWith.facet: %SubWith.type.a89 = facet_value Core.IntLiteral, (%SubWith.impl_witness.7e9) [concrete]
+// CHECK:STDOUT:   %.dc3: type = fn_type_with_self_type %SubWith.Op.type.95d, %SubWith.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.SubWith.impl.Op.type: type = fn_type @Core.IntLiteral.as.SubWith.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.SubWith.impl.Op: %Core.IntLiteral.as.SubWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.SubWith.impl.Op.bound: <bound method> = bound_method %int_3, %Core.IntLiteral.as.SubWith.impl.Op [concrete]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %DivWith.impl_witness.130: <witness> = impl_witness imports.%DivWith.impl_witness_table.cc4 [concrete]
-// CHECK:STDOUT:   %DivWith.facet: %DivWith.type.f3e = facet_value Core.IntLiteral, (%DivWith.impl_witness.130) [concrete]
-// CHECK:STDOUT:   %.f62: type = fn_type_with_self_type %DivWith.Op.type.c64, %DivWith.facet [concrete]
+// CHECK:STDOUT:   %DivWith.impl_witness.e7e: <witness> = impl_witness imports.%DivWith.impl_witness_table.67b [concrete]
+// CHECK:STDOUT:   %DivWith.facet: %DivWith.type.234 = facet_value Core.IntLiteral, (%DivWith.impl_witness.e7e) [concrete]
+// CHECK:STDOUT:   %.358: type = fn_type_with_self_type %DivWith.Op.type.c64, %DivWith.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.DivWith.impl.Op.type: type = fn_type @Core.IntLiteral.as.DivWith.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.DivWith.impl.Op: %Core.IntLiteral.as.DivWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.DivWith.impl.Op.bound: <bound method> = bound_method %int_4, %Core.IntLiteral.as.DivWith.impl.Op [concrete]
-// CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0.74b = %struct> [concrete]
+// CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0.197 = %struct> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -119,16 +119,16 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/types/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.SubWith: %SubWith.type.378 = import_ref Core//prelude/operators/arithmetic, SubWith, loaded [concrete = constants.%SubWith.generic]
 // CHECK:STDOUT:   %Core.import_ref.abd97d.1 = import_ref Core//prelude/operators/arithmetic, loc115_57, unloaded
-// CHECK:STDOUT:   %Core.import_ref.252: %Core.IntLiteral.as.SubWith.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc116_42, loaded [concrete = constants.%Core.IntLiteral.as.SubWith.impl.Op]
-// CHECK:STDOUT:   %SubWith.impl_witness_table.ad5 = impl_witness_table (%Core.import_ref.abd97d.1, %Core.import_ref.252), @Core.IntLiteral.as.SubWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.d38: %Core.IntLiteral.as.SubWith.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc116_42, loaded [concrete = constants.%Core.IntLiteral.as.SubWith.impl.Op]
+// CHECK:STDOUT:   %SubWith.impl_witness_table.004 = impl_witness_table (%Core.import_ref.abd97d.1, %Core.import_ref.d38), @Core.IntLiteral.as.SubWith.impl [concrete]
 // CHECK:STDOUT:   %Core.DivWith: %DivWith.type.fc9 = import_ref Core//prelude/operators/arithmetic, DivWith, loaded [concrete = constants.%DivWith.generic]
 // CHECK:STDOUT:   %Core.import_ref.abd97d.2 = import_ref Core//prelude/operators/arithmetic, loc99_57, unloaded
-// CHECK:STDOUT:   %Core.import_ref.031: %Core.IntLiteral.as.DivWith.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc100_42, loaded [concrete = constants.%Core.IntLiteral.as.DivWith.impl.Op]
-// CHECK:STDOUT:   %DivWith.impl_witness_table.cc4 = impl_witness_table (%Core.import_ref.abd97d.2, %Core.import_ref.031), @Core.IntLiteral.as.DivWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7ab: %Core.IntLiteral.as.DivWith.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc100_42, loaded [concrete = constants.%Core.IntLiteral.as.DivWith.impl.Op]
+// CHECK:STDOUT:   %DivWith.impl_witness_table.67b = impl_witness_table (%Core.import_ref.abd97d.2, %Core.import_ref.7ab), @Core.IntLiteral.as.DivWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -142,28 +142,28 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:     %.loc6_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc6_7.2: type = converted %.loc6_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %.Self.ref.loc6_20: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %.Self.ref.loc6_20: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:     %X.ref.loc6_20: %I.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.e7f]
-// CHECK:STDOUT:     %.Self.as_type.loc6_20: type = facet_access_type %.Self.ref.loc6_20 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %.loc6_20: type = converted %.Self.ref.loc6_20, %.Self.as_type.loc6_20 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %impl.elem0.loc6_20: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.74b]
+// CHECK:STDOUT:     %.Self.as_type.loc6_20: type = facet_access_type %.Self.ref.loc6_20 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %.loc6_20: type = converted %.Self.ref.loc6_20, %.Self.as_type.loc6_20 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %impl.elem0.loc6_20: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.197]
 // CHECK:STDOUT:     %true: bool = bool_literal true [concrete = constants.%true]
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2.loc6_46: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc6_47.1: %tuple.type.f94 = tuple_literal (%int_1, %int_2.loc6_46)
 // CHECK:STDOUT:     %.loc6_48.1: %struct_type.a.b.aa4 = struct_literal (%true, %.loc6_47.1)
-// CHECK:STDOUT:     %impl.elem0.loc6_47.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc6_47.1: <bound method> = bound_method %int_1, %impl.elem0.loc6_47.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:     %impl.elem0.loc6_47.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc6_47.1: <bound method> = bound_method %int_1, %impl.elem0.loc6_47.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:     %specific_fn.loc6_47.1: <specific function> = specific_function %impl.elem0.loc6_47.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_47.2: <bound method> = bound_method %int_1, %specific_fn.loc6_47.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:     %bound_method.loc6_47.2: <bound method> = bound_method %int_1, %specific_fn.loc6_47.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_47.1: init %i32 = call %bound_method.loc6_47.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc6_47.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_47.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc6_47.3: %i32 = converted %int_1, %.loc6_47.2 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:     %impl.elem0.loc6_47.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc6_47.3: <bound method> = bound_method %int_2.loc6_46, %impl.elem0.loc6_47.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:     %impl.elem0.loc6_47.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc6_47.3: <bound method> = bound_method %int_2.loc6_46, %impl.elem0.loc6_47.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:     %specific_fn.loc6_47.2: <specific function> = specific_function %impl.elem0.loc6_47.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_47.4: <bound method> = bound_method %int_2.loc6_46, %specific_fn.loc6_47.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc6_47.4: <bound method> = bound_method %int_2.loc6_46, %specific_fn.loc6_47.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_47.2: init %i32 = call %bound_method.loc6_47.4(%int_2.loc6_46) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc6_47.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_47.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc6_47.5: %i32 = converted %int_2.loc6_46, %.loc6_47.4 [concrete = constants.%int_2.ef8]
@@ -171,39 +171,39 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:     %.loc6_48.2: %tuple.type.d07 = converted %.loc6_47.1, %tuple.loc6_47 [concrete = constants.%tuple]
 // CHECK:STDOUT:     %struct.loc6_48: %struct_type.a.b.fe2 = struct_value (%true, %.loc6_48.2) [concrete = constants.%struct]
 // CHECK:STDOUT:     %.loc6_48.3: %struct_type.a.b.fe2 = converted %.loc6_48.1, %struct.loc6_48 [concrete = constants.%struct]
-// CHECK:STDOUT:     %.Self.ref.loc6_54: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:     %.Self.ref.loc6_54: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:     %X.ref.loc6_54: %I.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.e7f]
-// CHECK:STDOUT:     %.Self.as_type.loc6_54: type = facet_access_type %.Self.ref.loc6_54 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %.loc6_54: type = converted %.Self.ref.loc6_54, %.Self.as_type.loc6_54 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %impl.elem0.loc6_54: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.74b]
+// CHECK:STDOUT:     %.Self.as_type.loc6_54: type = facet_access_type %.Self.ref.loc6_54 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %.loc6_54: type = converted %.Self.ref.loc6_54, %.Self.as_type.loc6_54 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %impl.elem0.loc6_54: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.197]
 // CHECK:STDOUT:     %impl.elem0.subst: %struct_type.a.b.fe2 = impl_witness_access_substituted %impl.elem0.loc6_54, %.loc6_48.3 [concrete = constants.%struct]
 // CHECK:STDOUT:     %false: bool = bool_literal false [concrete = constants.%false]
 // CHECK:STDOUT:     %.loc6_65: bool = not %false [concrete = constants.%true]
 // CHECK:STDOUT:     %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3]
 // CHECK:STDOUT:     %int_2.loc6_86: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem1.loc6_84: %.4ae = impl_witness_access constants.%SubWith.impl_witness.72e, element1 [concrete = constants.%Core.IntLiteral.as.SubWith.impl.Op]
+// CHECK:STDOUT:     %impl.elem1.loc6_84: %.dc3 = impl_witness_access constants.%SubWith.impl_witness.7e9, element1 [concrete = constants.%Core.IntLiteral.as.SubWith.impl.Op]
 // CHECK:STDOUT:     %bound_method.loc6_84: <bound method> = bound_method %int_3, %impl.elem1.loc6_84 [concrete = constants.%Core.IntLiteral.as.SubWith.impl.Op.bound]
 // CHECK:STDOUT:     %Core.IntLiteral.as.SubWith.impl.Op.call: init Core.IntLiteral = call %bound_method.loc6_84(%int_3, %int_2.loc6_86) [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4]
 // CHECK:STDOUT:     %int_2.loc6_93: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem1.loc6_91: %.f62 = impl_witness_access constants.%DivWith.impl_witness.130, element1 [concrete = constants.%Core.IntLiteral.as.DivWith.impl.Op]
+// CHECK:STDOUT:     %impl.elem1.loc6_91: %.358 = impl_witness_access constants.%DivWith.impl_witness.e7e, element1 [concrete = constants.%Core.IntLiteral.as.DivWith.impl.Op]
 // CHECK:STDOUT:     %bound_method.loc6_91: <bound method> = bound_method %int_4, %impl.elem1.loc6_91 [concrete = constants.%Core.IntLiteral.as.DivWith.impl.Op.bound]
 // CHECK:STDOUT:     %Core.IntLiteral.as.DivWith.impl.Op.call: init Core.IntLiteral = call %bound_method.loc6_91(%int_4, %int_2.loc6_93) [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc6_94.1: %tuple.type.f94 = tuple_literal (%Core.IntLiteral.as.SubWith.impl.Op.call, %Core.IntLiteral.as.DivWith.impl.Op.call)
 // CHECK:STDOUT:     %.loc6_95.1: %struct_type.a.b.aa4 = struct_literal (%.loc6_65, %.loc6_94.1)
-// CHECK:STDOUT:     %impl.elem0.loc6_94.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc6_94.1: <bound method> = bound_method %Core.IntLiteral.as.SubWith.impl.Op.call, %impl.elem0.loc6_94.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:     %impl.elem0.loc6_94.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc6_94.1: <bound method> = bound_method %Core.IntLiteral.as.SubWith.impl.Op.call, %impl.elem0.loc6_94.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:     %specific_fn.loc6_94.1: <specific function> = specific_function %impl.elem0.loc6_94.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_94.2: <bound method> = bound_method %Core.IntLiteral.as.SubWith.impl.Op.call, %specific_fn.loc6_94.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:     %bound_method.loc6_94.2: <bound method> = bound_method %Core.IntLiteral.as.SubWith.impl.Op.call, %specific_fn.loc6_94.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:     %.loc6_84.1: Core.IntLiteral = value_of_initializer %Core.IntLiteral.as.SubWith.impl.Op.call [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %.loc6_84.2: Core.IntLiteral = converted %Core.IntLiteral.as.SubWith.impl.Op.call, %.loc6_84.1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_94.1: init %i32 = call %bound_method.loc6_94.2(%.loc6_84.2) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc6_94.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_94.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc6_94.3: %i32 = converted %Core.IntLiteral.as.SubWith.impl.Op.call, %.loc6_94.2 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:     %impl.elem0.loc6_94.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc6_94.3: <bound method> = bound_method %Core.IntLiteral.as.DivWith.impl.Op.call, %impl.elem0.loc6_94.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:     %impl.elem0.loc6_94.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc6_94.3: <bound method> = bound_method %Core.IntLiteral.as.DivWith.impl.Op.call, %impl.elem0.loc6_94.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:     %specific_fn.loc6_94.2: <specific function> = specific_function %impl.elem0.loc6_94.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc6_94.4: <bound method> = bound_method %Core.IntLiteral.as.DivWith.impl.Op.call, %specific_fn.loc6_94.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc6_94.4: <bound method> = bound_method %Core.IntLiteral.as.DivWith.impl.Op.call, %specific_fn.loc6_94.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %.loc6_91.1: Core.IntLiteral = value_of_initializer %Core.IntLiteral.as.DivWith.impl.Op.call [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc6_91.2: Core.IntLiteral = converted %Core.IntLiteral.as.DivWith.impl.Op.call, %.loc6_91.1 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_94.2: init %i32 = call %bound_method.loc6_94.4(%.loc6_91.2) [concrete = constants.%int_2.ef8]
@@ -225,7 +225,7 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.8268]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %X: %struct_type.a.b.fe2 = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%X [concrete = constants.%assoc0.e7f]
 // CHECK:STDOUT:   }
@@ -245,7 +245,7 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   witness = file.%I.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%Self.8268) {}
+// CHECK:STDOUT: specific @X(constants.%Self.ce4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @X(constants.%I.facet) {}
 // CHECK:STDOUT:
@@ -253,7 +253,7 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.8268: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
@@ -265,11 +265,11 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   %struct_type.a.b.fe2: type = struct_type {.a: bool, .b: %tuple.type.d07} [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.e7f: %I.assoc_type = assoc_entity element0, @I.%X [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type.541: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type.541, (%I.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.74b: %struct_type.a.b.fe2 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type.154: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type.154, (%I.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.197: %struct_type.a.b.fe2 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
@@ -277,33 +277,33 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   %struct_type.a.b.aa4: type = struct_type {.a: bool, .b: %tuple.type.f94} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.21c: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %struct.682: %struct_type.a.b.fe2 = struct_value (%true, %tuple.21c) [concrete]
 // CHECK:STDOUT:   %false: bool = bool_literal false [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %tuple.ffd: %tuple.type.d07 = tuple_value (%int_3.822, %int_4.940) [concrete]
 // CHECK:STDOUT:   %struct.68c: %struct_type.a.b.fe2 = struct_value (%false, %tuple.ffd) [concrete]
@@ -320,8 +320,8 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/types/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -335,28 +335,28 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:     %.loc10_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc10_7.2: type = converted %.loc10_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %.Self.ref.loc10_20: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %.Self.ref.loc10_20: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:     %X.ref.loc10_20: %I.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.e7f]
-// CHECK:STDOUT:     %.Self.as_type.loc10_20: type = facet_access_type %.Self.ref.loc10_20 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %.loc10_20: type = converted %.Self.ref.loc10_20, %.Self.as_type.loc10_20 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %impl.elem0.loc10_20: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.74b]
+// CHECK:STDOUT:     %.Self.as_type.loc10_20: type = facet_access_type %.Self.ref.loc10_20 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %.loc10_20: type = converted %.Self.ref.loc10_20, %.Self.as_type.loc10_20 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %impl.elem0.loc10_20: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.197]
 // CHECK:STDOUT:     %true: bool = bool_literal true [concrete = constants.%true]
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc10_47.1: %tuple.type.f94 = tuple_literal (%int_1, %int_2)
 // CHECK:STDOUT:     %.loc10_48.1: %struct_type.a.b.aa4 = struct_literal (%true, %.loc10_47.1)
-// CHECK:STDOUT:     %impl.elem0.loc10_47.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc10_47.1: <bound method> = bound_method %int_1, %impl.elem0.loc10_47.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:     %impl.elem0.loc10_47.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc10_47.1: <bound method> = bound_method %int_1, %impl.elem0.loc10_47.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:     %specific_fn.loc10_47.1: <specific function> = specific_function %impl.elem0.loc10_47.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc10_47.2: <bound method> = bound_method %int_1, %specific_fn.loc10_47.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:     %bound_method.loc10_47.2: <bound method> = bound_method %int_1, %specific_fn.loc10_47.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_47.1: init %i32 = call %bound_method.loc10_47.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc10_47.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_47.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc10_47.3: %i32 = converted %int_1, %.loc10_47.2 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:     %impl.elem0.loc10_47.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc10_47.3: <bound method> = bound_method %int_2, %impl.elem0.loc10_47.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:     %impl.elem0.loc10_47.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc10_47.3: <bound method> = bound_method %int_2, %impl.elem0.loc10_47.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:     %specific_fn.loc10_47.2: <specific function> = specific_function %impl.elem0.loc10_47.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc10_47.4: <bound method> = bound_method %int_2, %specific_fn.loc10_47.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc10_47.4: <bound method> = bound_method %int_2, %specific_fn.loc10_47.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_47.2: init %i32 = call %bound_method.loc10_47.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc10_47.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_47.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc10_47.5: %i32 = converted %int_2, %.loc10_47.4 [concrete = constants.%int_2.ef8]
@@ -364,28 +364,28 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:     %.loc10_48.2: %tuple.type.d07 = converted %.loc10_47.1, %tuple.loc10_47 [concrete = constants.%tuple.21c]
 // CHECK:STDOUT:     %struct.loc10_48: %struct_type.a.b.fe2 = struct_value (%true, %.loc10_48.2) [concrete = constants.%struct.682]
 // CHECK:STDOUT:     %.loc10_48.3: %struct_type.a.b.fe2 = converted %.loc10_48.1, %struct.loc10_48 [concrete = constants.%struct.682]
-// CHECK:STDOUT:     %.Self.ref.loc10_54: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:     %.Self.ref.loc10_54: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:     %X.ref.loc10_54: %I.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.e7f]
-// CHECK:STDOUT:     %.Self.as_type.loc10_54: type = facet_access_type %.Self.ref.loc10_54 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %.loc10_54: type = converted %.Self.ref.loc10_54, %.Self.as_type.loc10_54 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:     %impl.elem0.loc10_54: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.74b]
+// CHECK:STDOUT:     %.Self.as_type.loc10_54: type = facet_access_type %.Self.ref.loc10_54 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %.loc10_54: type = converted %.Self.ref.loc10_54, %.Self.as_type.loc10_54 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:     %impl.elem0.loc10_54: %struct_type.a.b.fe2 = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0.197]
 // CHECK:STDOUT:     %impl.elem0.subst: %struct_type.a.b.fe2 = impl_witness_access_substituted %impl.elem0.loc10_54, %.loc10_48.3 [concrete = constants.%struct.682]
 // CHECK:STDOUT:     %false: bool = bool_literal false [concrete = constants.%false]
 // CHECK:STDOUT:     %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:     %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
 // CHECK:STDOUT:     %.loc10_82.1: %tuple.type.f94 = tuple_literal (%int_3, %int_4)
 // CHECK:STDOUT:     %.loc10_83.1: %struct_type.a.b.aa4 = struct_literal (%false, %.loc10_82.1)
-// CHECK:STDOUT:     %impl.elem0.loc10_82.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc10_82.1: <bound method> = bound_method %int_3, %impl.elem0.loc10_82.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:     %impl.elem0.loc10_82.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc10_82.1: <bound method> = bound_method %int_3, %impl.elem0.loc10_82.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:     %specific_fn.loc10_82.1: <specific function> = specific_function %impl.elem0.loc10_82.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc10_82.2: <bound method> = bound_method %int_3, %specific_fn.loc10_82.1 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:     %bound_method.loc10_82.2: <bound method> = bound_method %int_3, %specific_fn.loc10_82.1 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_82.1: init %i32 = call %bound_method.loc10_82.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %.loc10_82.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_82.1 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %.loc10_82.3: %i32 = converted %int_3, %.loc10_82.2 [concrete = constants.%int_3.822]
-// CHECK:STDOUT:     %impl.elem0.loc10_82.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc10_82.3: <bound method> = bound_method %int_4, %impl.elem0.loc10_82.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:     %impl.elem0.loc10_82.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc10_82.3: <bound method> = bound_method %int_4, %impl.elem0.loc10_82.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:     %specific_fn.loc10_82.2: <specific function> = specific_function %impl.elem0.loc10_82.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc10_82.4: <bound method> = bound_method %int_4, %specific_fn.loc10_82.2 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:     %bound_method.loc10_82.4: <bound method> = bound_method %int_4, %specific_fn.loc10_82.2 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_82.2: init %i32 = call %bound_method.loc10_82.4(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:     %.loc10_82.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_82.2 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:     %.loc10_82.5: %i32 = converted %int_4, %.loc10_82.4 [concrete = constants.%int_4.940]
@@ -402,7 +402,7 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.8268]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %X: %struct_type.a.b.fe2 = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%X [concrete = constants.%assoc0.e7f]
 // CHECK:STDOUT:   }
@@ -422,7 +422,7 @@ impl () as I where .X = {.a = true, .b = (1, 2)} and .X = {.a = false, .b = (3,
 // CHECK:STDOUT:   witness = <error>
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%Self.8268) {}
+// CHECK:STDOUT: specific @X(constants.%Self.ce4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @X(constants.%I.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/impl_thunk.carbon b/toolchain/check/testdata/impl/impl_thunk.carbon
index a20c70f8e45d..77c9ae9318cb 100644
--- a/toolchain/check/testdata/impl/impl_thunk.carbon
+++ b/toolchain/check/testdata/impl/impl_thunk.carbon
@@ -322,15 +322,15 @@ impl () as I({}) {
 // CHECK:STDOUT:   %pattern_type.231: type = pattern_type %struct_type.b.a.40c [concrete]
 // CHECK:STDOUT:   %struct_type.d.c.b36: type = struct_type {.d: %empty_struct_type, .c: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %pattern_type.844: type = pattern_type %struct_type.d.c.b36 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.39e918.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_48.1 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.c04b92.1: %empty_tuple.type.as.I.impl.F.type.39e918.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.39e918.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_48.2 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.c04b92.2: %empty_tuple.type.as.I.impl.F.type.39e918.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.f02023.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_48.1 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.a00f9e.1: %empty_tuple.type.as.I.impl.F.type.f02023.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.f02023.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_48.2 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.a00f9e.2: %empty_tuple.type.as.I.impl.F.type.f02023.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.c.d.15a = struct_value (%empty_tuple, %empty_struct) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.afe: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.d.c.b36) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.742: %T.as.Destroy.impl.Op.type.afe = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2a1: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.d.c.b36) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.03a: %T.as.Destroy.impl.Op.type.2a1 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.eab: type = ptr_type %struct_type.d.c.b36 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -338,7 +338,7 @@ impl () as I({}) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.I.impl: %.loc8_7.2 as %I.ref {
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_48.1: %empty_tuple.type.as.I.impl.F.type.39e918.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_48.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.1] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_48.1: %empty_tuple.type.as.I.impl.F.type.f02023.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_48.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.1] {
 // CHECK:STDOUT:     %y.patt: %pattern_type.231 = binding_pattern y [concrete]
 // CHECK:STDOUT:     %y.param_patt: %pattern_type.231 = value_param_pattern %y.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.844 = return_slot_pattern [concrete]
@@ -361,7 +361,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref %struct_type.d.c.b36 = out_param call_param1
 // CHECK:STDOUT:     %return: ref %struct_type.d.c.b36 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_48.2: %empty_tuple.type.as.I.impl.F.type.39e918.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_48.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.2] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_48.2: %empty_tuple.type.as.I.impl.F.type.f02023.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_48.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -376,7 +376,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.I.impl.F.loc10_48.2(%x.param: %struct_type.a.b.391) -> %return.param: %struct_type.c.d.15a [thunk @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_48.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.I.impl.F.type.39e918.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_48.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.1]
+// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.I.impl.F.type.f02023.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_48.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.1]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %.loc10_48.1: ref %struct_type.d.c.b36 = temporary_storage
 // CHECK:STDOUT:   <elided>
@@ -392,7 +392,7 @@ impl () as I({}) {
 // CHECK:STDOUT:   %.loc10_48.10: init %empty_struct_type = converted %.loc10_48.7, %.loc10_48.9 [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   %.loc10_48.11: init %struct_type.c.d.15a = struct_init (%.loc10_48.6, %.loc10_48.10) to %return [concrete = constants.%struct]
 // CHECK:STDOUT:   %.loc10_48.12: init %struct_type.c.d.15a = converted %empty_tuple.type.as.I.impl.F.call, %.loc10_48.11 [concrete = constants.%struct]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_48.2, constants.%T.as.Destroy.impl.Op.742
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_48.2, constants.%T.as.Destroy.impl.Op.03a
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc10_48.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.eab = addr_of %.loc10_48.2
@@ -412,17 +412,17 @@ impl () as I({}) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.type.f1b0b1.1: type = fn_type @B.as.X.impl.F.loc14_39.1 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.5161e9.1: %B.as.X.impl.F.type.f1b0b1.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.type.f1b0b1.2: type = fn_type @B.as.X.impl.F.loc14_39.2 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.5161e9.2: %B.as.X.impl.F.type.f1b0b1.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.type.30dea9.1: type = fn_type @B.as.X.impl.F.loc14_39.1 [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.c4bc28.1: %B.as.X.impl.F.type.30dea9.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.type.30dea9.2: type = fn_type @B.as.X.impl.F.loc14_39.2 [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.c4bc28.2: %B.as.X.impl.F.type.30dea9.2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @B.as.X.impl: %B.ref as %X.ref {
-// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.1: %B.as.X.impl.F.type.f1b0b1.1 = fn_decl @B.as.X.impl.F.loc14_39.1 [concrete = constants.%B.as.X.impl.F.5161e9.1] {
+// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.1: %B.as.X.impl.F.type.30dea9.1 = fn_decl @B.as.X.impl.F.loc14_39.1 [concrete = constants.%B.as.X.impl.F.c4bc28.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.5f8 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.5f8 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %.loc14_8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -448,7 +448,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref %ptr.019 = out_param call_param2
 // CHECK:STDOUT:     %return: ref %ptr.019 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.2: %B.as.X.impl.F.type.f1b0b1.2 = fn_decl @B.as.X.impl.F.loc14_39.2 [concrete = constants.%B.as.X.impl.F.5161e9.2] {
+// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.2: %B.as.X.impl.F.type.30dea9.2 = fn_decl @B.as.X.impl.F.loc14_39.2 [concrete = constants.%B.as.X.impl.F.c4bc28.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -465,7 +465,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @B.as.X.impl.F.loc14_39.2(%self.param: %ptr.e79, %other.param: %ptr.e79) -> %ptr.e79 [thunk @B.as.X.impl.%B.as.X.impl.F.decl.loc14_39.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %B.as.X.impl.F.type.f1b0b1.1 = name_ref F, @B.as.X.impl.%B.as.X.impl.F.decl.loc14_39.1 [concrete = constants.%B.as.X.impl.F.5161e9.1]
+// CHECK:STDOUT:   %F.ref: %B.as.X.impl.F.type.30dea9.1 = name_ref F, @B.as.X.impl.%B.as.X.impl.F.decl.loc14_39.1 [concrete = constants.%B.as.X.impl.F.c4bc28.1]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %B.as.X.impl.F.bound: <bound method> = bound_method %.loc9_17.1, %F.ref
 // CHECK:STDOUT:   <elided>
@@ -486,17 +486,17 @@ impl () as I({}) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.type.f1b0b1.1: type = fn_type @B.as.X.impl.F.loc13_26.1 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.5161e9.1: %B.as.X.impl.F.type.f1b0b1.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.type.f1b0b1.2: type = fn_type @B.as.X.impl.F.loc13_26.2 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.5161e9.2: %B.as.X.impl.F.type.f1b0b1.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.type.30dea9.1: type = fn_type @B.as.X.impl.F.loc13_26.1 [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.c4bc28.1: %B.as.X.impl.F.type.30dea9.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.type.30dea9.2: type = fn_type @B.as.X.impl.F.loc13_26.2 [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.c4bc28.2: %B.as.X.impl.F.type.30dea9.2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @B.as.X.impl: %B.ref as %X.ref {
-// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc13_26.1: %B.as.X.impl.F.type.f1b0b1.1 = fn_decl @B.as.X.impl.F.loc13_26.1 [concrete = constants.%B.as.X.impl.F.5161e9.1] {
+// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc13_26.1: %B.as.X.impl.F.type.30dea9.1 = fn_decl @B.as.X.impl.F.loc13_26.1 [concrete = constants.%B.as.X.impl.F.c4bc28.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.c10 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.c10 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %other.patt: %pattern_type.c10 = binding_pattern other [concrete]
@@ -509,7 +509,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %A.ref.loc13_24: type = name_ref A, file.%A.decl [concrete = constants.%A]
 // CHECK:STDOUT:     %other: %A = bind_name other, %other.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc13_26.2: %B.as.X.impl.F.type.f1b0b1.2 = fn_decl @B.as.X.impl.F.loc13_26.2 [concrete = constants.%B.as.X.impl.F.5161e9.2] {
+// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc13_26.2: %B.as.X.impl.F.type.30dea9.2 = fn_decl @B.as.X.impl.F.loc13_26.2 [concrete = constants.%B.as.X.impl.F.c4bc28.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -525,7 +525,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @B.as.X.impl.F.loc13_26.2(%self.param: %B, %other.param: %B) [thunk @B.as.X.impl.%B.as.X.impl.F.decl.loc13_26.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %B.as.X.impl.F.type.f1b0b1.1 = name_ref F, @B.as.X.impl.%B.as.X.impl.F.decl.loc13_26.1 [concrete = constants.%B.as.X.impl.F.5161e9.1]
+// CHECK:STDOUT:   %F.ref: %B.as.X.impl.F.type.30dea9.1 = name_ref F, @B.as.X.impl.%B.as.X.impl.F.decl.loc13_26.1 [concrete = constants.%B.as.X.impl.F.c4bc28.1]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %B.as.X.impl.F.bound: <bound method> = bound_method %self.ref, %F.ref
 // CHECK:STDOUT:   <elided>
@@ -545,17 +545,17 @@ impl () as I({}) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.type.f1b0b1.1: type = fn_type @B.as.X.impl.F.loc14_39.1 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.5161e9.1: %B.as.X.impl.F.type.f1b0b1.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.type.f1b0b1.2: type = fn_type @B.as.X.impl.F.loc14_39.2 [concrete]
-// CHECK:STDOUT:   %B.as.X.impl.F.5161e9.2: %B.as.X.impl.F.type.f1b0b1.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.type.30dea9.1: type = fn_type @B.as.X.impl.F.loc14_39.1 [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.c4bc28.1: %B.as.X.impl.F.type.30dea9.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.type.30dea9.2: type = fn_type @B.as.X.impl.F.loc14_39.2 [concrete]
+// CHECK:STDOUT:   %B.as.X.impl.F.c4bc28.2: %B.as.X.impl.F.type.30dea9.2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @B.as.X.impl: %B.ref as %X.ref {
-// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.1: %B.as.X.impl.F.type.f1b0b1.1 = fn_decl @B.as.X.impl.F.loc14_39.1 [concrete = constants.%B.as.X.impl.F.5161e9.1] {
+// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.1: %B.as.X.impl.F.type.30dea9.1 = fn_decl @B.as.X.impl.F.loc14_39.1 [concrete = constants.%B.as.X.impl.F.c4bc28.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.5f8 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.5f8 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %.loc14_8: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -581,7 +581,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref %ptr.019 = out_param call_param2
 // CHECK:STDOUT:     %return: ref %ptr.019 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.2: %B.as.X.impl.F.type.f1b0b1.2 = fn_decl @B.as.X.impl.F.loc14_39.2 [concrete = constants.%B.as.X.impl.F.5161e9.2] {
+// CHECK:STDOUT:   %B.as.X.impl.F.decl.loc14_39.2: %B.as.X.impl.F.type.30dea9.2 = fn_decl @B.as.X.impl.F.loc14_39.2 [concrete = constants.%B.as.X.impl.F.c4bc28.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -598,7 +598,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @B.as.X.impl.F.loc14_39.2(%self.param: %ptr.e79, %other.param: %ptr.e79) -> %ptr.e79 [thunk @B.as.X.impl.%B.as.X.impl.F.decl.loc14_39.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %B.as.X.impl.F.type.f1b0b1.1 = name_ref F, @B.as.X.impl.%B.as.X.impl.F.decl.loc14_39.1 [concrete = constants.%B.as.X.impl.F.5161e9.1]
+// CHECK:STDOUT:   %F.ref: %B.as.X.impl.F.type.30dea9.1 = name_ref F, @B.as.X.impl.%B.as.X.impl.F.decl.loc14_39.1 [concrete = constants.%B.as.X.impl.F.c4bc28.1]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %B.as.X.impl.F.bound: <bound method> = bound_method %.loc9_17.1, %F.ref
 // CHECK:STDOUT:   <elided>
@@ -622,17 +622,17 @@ impl () as I({}) {
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.049: type = pattern_type %B [concrete]
-// CHECK:STDOUT:   %A.as.X.impl.F.type.b24d6f.1: type = fn_type @A.as.X.impl.F.loc20_14.1 [concrete]
-// CHECK:STDOUT:   %A.as.X.impl.F.77e9d5.1: %A.as.X.impl.F.type.b24d6f.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.as.X.impl.F.type.b24d6f.2: type = fn_type @A.as.X.impl.F.loc20_14.2 [concrete]
-// CHECK:STDOUT:   %A.as.X.impl.F.77e9d5.2: %A.as.X.impl.F.type.b24d6f.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %A.as.X.impl.F.type.d90acb.1: type = fn_type @A.as.X.impl.F.loc20_14.1 [concrete]
+// CHECK:STDOUT:   %A.as.X.impl.F.4a6dbe.1: %A.as.X.impl.F.type.d90acb.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %A.as.X.impl.F.type.d90acb.2: type = fn_type @A.as.X.impl.F.loc20_14.2 [concrete]
+// CHECK:STDOUT:   %A.as.X.impl.F.4a6dbe.2: %A.as.X.impl.F.type.d90acb.2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @A.as.X.impl: %A.ref as %X.ref {
-// CHECK:STDOUT:   %A.as.X.impl.F.decl.loc20_14.1: %A.as.X.impl.F.type.b24d6f.1 = fn_decl @A.as.X.impl.F.loc20_14.1 [concrete = constants.%A.as.X.impl.F.77e9d5.1] {
+// CHECK:STDOUT:   %A.as.X.impl.F.decl.loc20_14.1: %A.as.X.impl.F.type.d90acb.1 = fn_decl @A.as.X.impl.F.loc20_14.1 [concrete = constants.%A.as.X.impl.F.4a6dbe.1] {
 // CHECK:STDOUT:     %return.patt: %pattern_type.049 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.049 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -640,7 +640,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref %B = out_param call_param0
 // CHECK:STDOUT:     %return: ref %B = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %A.as.X.impl.F.decl.loc20_14.2: %A.as.X.impl.F.type.b24d6f.2 = fn_decl @A.as.X.impl.F.loc20_14.2 [concrete = constants.%A.as.X.impl.F.77e9d5.2] {
+// CHECK:STDOUT:   %A.as.X.impl.F.decl.loc20_14.2: %A.as.X.impl.F.type.d90acb.2 = fn_decl @A.as.X.impl.F.loc20_14.2 [concrete = constants.%A.as.X.impl.F.4a6dbe.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -656,7 +656,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @A.as.X.impl.F.loc20_14.2() -> %return.param: %A [thunk @A.as.X.impl.%A.as.X.impl.F.decl.loc20_14.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %A.as.X.impl.F.type.b24d6f.1 = name_ref F, @A.as.X.impl.%A.as.X.impl.F.decl.loc20_14.1 [concrete = constants.%A.as.X.impl.F.77e9d5.1]
+// CHECK:STDOUT:   %F.ref: %A.as.X.impl.F.type.d90acb.1 = name_ref F, @A.as.X.impl.%A.as.X.impl.F.decl.loc20_14.1 [concrete = constants.%A.as.X.impl.F.4a6dbe.1]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %.loc20_14.1: ref %B = temporary_storage
 // CHECK:STDOUT:   %A.as.X.impl.F.call: init %B = call %F.ref() to %.loc20_14.1
@@ -676,23 +676,23 @@ impl () as I({}) {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %U [symbolic]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.39e918.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.c04b92.1: %empty_tuple.type.as.I.impl.F.type.39e918.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.f02023.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.a00f9e.1: %empty_tuple.type.as.I.impl.F.type.f02023.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %T.8b3 [symbolic]
 // CHECK:STDOUT:   %pattern_type.afe: type = pattern_type %ptr.79f [symbolic]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.39e918.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.c04b92.2: %empty_tuple.type.as.I.impl.F.type.39e918.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.f02023.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.a00f9e.2: %empty_tuple.type.as.I.impl.F.type.f02023.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %U [symbolic]
 // CHECK:STDOUT:   %require_complete.6e5: <witness> = require_complete_type %ptr.79f [symbolic]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.specific_fn: <specific function> = specific_function %empty_tuple.type.as.I.impl.F.c04b92.1, @empty_tuple.type.as.I.impl.F.loc10_29.1(%ptr.79f) [symbolic]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.specific_fn: <specific function> = specific_function %empty_tuple.type.as.I.impl.F.a00f9e.1, @empty_tuple.type.as.I.impl.F.loc10_29.1(%ptr.79f) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.I.impl: %.loc8_7.2 as %I.ref {
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.1: %empty_tuple.type.as.I.impl.F.type.39e918.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.1] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.1: %empty_tuple.type.as.I.impl.F.type.f02023.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.1] {
 // CHECK:STDOUT:     %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:     %x.patt: @empty_tuple.type.as.I.impl.F.loc10_29.1.%pattern_type (%pattern_type.7dc) = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: @empty_tuple.type.as.I.impl.F.loc10_29.1.%pattern_type (%pattern_type.7dc) = value_param_pattern %x.patt, call_param0 [concrete]
@@ -708,7 +708,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref @empty_tuple.type.as.I.impl.F.loc10_29.1.%U.loc10_8.1 (%U) = out_param call_param1
 // CHECK:STDOUT:     %return: ref @empty_tuple.type.as.I.impl.F.loc10_29.1.%U.loc10_8.1 (%U) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.2: %empty_tuple.type.as.I.impl.F.type.39e918.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.2] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.2: %empty_tuple.type.as.I.impl.F.type.f02023.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -737,12 +737,12 @@ impl () as I({}) {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.2: <specific function> = specific_function constants.%empty_tuple.type.as.I.impl.F.c04b92.1, @empty_tuple.type.as.I.impl.F.loc10_29.1(%ptr) [symbolic = %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.2 (constants.%empty_tuple.type.as.I.impl.F.specific_fn)]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.2: <specific function> = specific_function constants.%empty_tuple.type.as.I.impl.F.a00f9e.1, @empty_tuple.type.as.I.impl.F.loc10_29.1(%ptr) [symbolic = %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.2 (constants.%empty_tuple.type.as.I.impl.F.specific_fn)]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @empty_tuple.type.as.I.impl.F.loc10_29.2.%ptr (%ptr.79f)) -> @empty_tuple.type.as.I.impl.F.loc10_29.2.%ptr (%ptr.79f) [thunk @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_29.1] {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %F.ref: %empty_tuple.type.as.I.impl.F.type.39e918.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.1]
+// CHECK:STDOUT:     %F.ref: %empty_tuple.type.as.I.impl.F.type.f02023.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.1]
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:     %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.1: <specific function> = specific_function %F.ref, @empty_tuple.type.as.I.impl.F.loc10_29.1(constants.%ptr.79f) [symbolic = %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.2 (constants.%empty_tuple.type.as.I.impl.F.specific_fn)]
 // CHECK:STDOUT:     %empty_tuple.type.as.I.impl.F.call: init @empty_tuple.type.as.I.impl.F.loc10_29.2.%ptr (%ptr.79f) = call %empty_tuple.type.as.I.impl.F.specific_fn.loc10_29.1(%x.ref)
@@ -779,13 +779,13 @@ impl () as I({}) {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %U [symbolic]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.39e918.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc19_39.1 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.c04b92.1: %empty_tuple.type.as.I.impl.F.type.39e918.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.f02023.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc19_39.1 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.a00f9e.1: %empty_tuple.type.as.I.impl.F.type.f02023.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %T.8b3 [symbolic]
 // CHECK:STDOUT:   %pattern_type.afe: type = pattern_type %ptr.79f [symbolic]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.39e918.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc19_39.2 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.c04b92.2: %empty_tuple.type.as.I.impl.F.type.39e918.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.f02023.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc19_39.2 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.a00f9e.2: %empty_tuple.type.as.I.impl.F.type.f02023.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %U [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -793,7 +793,7 @@ impl () as I({}) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.I.impl: %.loc10_7.2 as %I.ref {
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc19_39.1: %empty_tuple.type.as.I.impl.F.type.39e918.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc19_39.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.1] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc19_39.1: %empty_tuple.type.as.I.impl.F.type.f02023.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc19_39.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.cb1 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.cb1 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 0 [concrete]
@@ -817,7 +817,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref @empty_tuple.type.as.I.impl.F.loc19_39.1.%U.loc19_18.1 (%U) = out_param call_param2
 // CHECK:STDOUT:     %return: ref @empty_tuple.type.as.I.impl.F.loc19_39.1.%U.loc19_18.1 (%U) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc19_39.2: %empty_tuple.type.as.I.impl.F.type.39e918.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc19_39.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.2] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc19_39.2: %empty_tuple.type.as.I.impl.F.type.f02023.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc19_39.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -849,7 +849,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: %empty_tuple.type, %x.param: @empty_tuple.type.as.I.impl.F.loc19_39.2.%ptr (%ptr.79f)) -> @empty_tuple.type.as.I.impl.F.loc19_39.2.%ptr (%ptr.79f) [thunk @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc19_39.1] {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %F.ref: %empty_tuple.type.as.I.impl.F.type.39e918.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc19_39.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.c04b92.1]
+// CHECK:STDOUT:     %F.ref: %empty_tuple.type.as.I.impl.F.type.f02023.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc19_39.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.a00f9e.1]
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:     return <error>
 // CHECK:STDOUT:   }
@@ -873,15 +873,15 @@ impl () as I({}) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %struct_type.b.a.1b0: type = struct_type {.b: %empty_struct_type, .a: %empty_struct_type} [concrete]
 // CHECK:STDOUT:   %pattern_type.914: type = pattern_type %struct_type.b.a.1b0 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.29ab63.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.975709.1: %empty_tuple.type.as.I.impl.F.type.29ab63.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.bffbe9.1: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.7e9a41.1: %empty_tuple.type.as.I.impl.F.type.bffbe9.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.a.b.f95: type = struct_type {.a: %empty_struct_type, .b: %empty_struct_type} [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.29ab63.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.975709.2: %empty_tuple.type.as.I.impl.F.type.29ab63.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type.bffbe9.2: type = fn_type @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.7e9a41.2: %empty_tuple.type.as.I.impl.F.type.bffbe9.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.f95 = struct_value (%empty_struct, %empty_struct) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f20: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.b.a.1b0) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.eab: %T.as.Destroy.impl.Op.type.f20 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.fc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.b.a.1b0) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d24: %T.as.Destroy.impl.Op.type.fc9 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.30d: type = ptr_type %struct_type.b.a.1b0 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -889,7 +889,7 @@ impl () as I({}) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.I.impl: %.loc8_7.2 as %I.type {
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.1: %empty_tuple.type.as.I.impl.F.type.29ab63.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.975709.1] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.1: %empty_tuple.type.as.I.impl.F.type.bffbe9.1 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.7e9a41.1] {
 // CHECK:STDOUT:     %return.patt: %pattern_type.914 = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.914 = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -901,7 +901,7 @@ impl () as I({}) {
 // CHECK:STDOUT:     %return.param: ref %struct_type.b.a.1b0 = out_param call_param0
 // CHECK:STDOUT:     %return: ref %struct_type.b.a.1b0 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.2: %empty_tuple.type.as.I.impl.F.type.29ab63.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.975709.2] {
+// CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.decl.loc10_29.2: %empty_tuple.type.as.I.impl.F.type.bffbe9.2 = fn_decl @empty_tuple.type.as.I.impl.F.loc10_29.2 [concrete = constants.%empty_tuple.type.as.I.impl.F.7e9a41.2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
@@ -916,7 +916,7 @@ impl () as I({}) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.I.impl.F.loc10_29.2() -> %return.param: %struct_type.a.b.f95 [thunk @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_29.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.I.impl.F.type.29ab63.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.975709.1]
+// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.I.impl.F.type.bffbe9.1 = name_ref F, @empty_tuple.type.as.I.impl.%empty_tuple.type.as.I.impl.F.decl.loc10_29.1 [concrete = constants.%empty_tuple.type.as.I.impl.F.7e9a41.1]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %.loc10_29.1: ref %struct_type.b.a.1b0 = temporary_storage
 // CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.call: init %struct_type.b.a.1b0 = call %F.ref() to %.loc10_29.1
@@ -931,7 +931,7 @@ impl () as I({}) {
 // CHECK:STDOUT:   %.loc10_29.10: init %empty_struct_type = converted %.loc10_29.7, %.loc10_29.9 [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   %.loc10_29.11: init %struct_type.a.b.f95 = struct_init (%.loc10_29.6, %.loc10_29.10) to %return [concrete = constants.%struct]
 // CHECK:STDOUT:   %.loc10_29.12: init %struct_type.a.b.f95 = converted %empty_tuple.type.as.I.impl.F.call, %.loc10_29.11 [concrete = constants.%struct]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_29.2, constants.%T.as.Destroy.impl.Op.eab
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc10_29.2, constants.%T.as.Destroy.impl.Op.d24
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc10_29.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.30d = addr_of %.loc10_29.2
diff --git a/toolchain/check/testdata/impl/impl_thunk_min_prelude.carbon b/toolchain/check/testdata/impl/impl_thunk_min_prelude.carbon
index bbfc2b8f7303..ca98fd2a2096 100644
--- a/toolchain/check/testdata/impl/impl_thunk_min_prelude.carbon
+++ b/toolchain/check/testdata/impl/impl_thunk_min_prelude.carbon
@@ -114,19 +114,19 @@ fn Call() -> Int(32) {
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.61e: type = facet_type <@ImplicitAs, @ImplicitAs(%i32.builtin)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.78a: type = facet_type <@ImplicitAs, @ImplicitAs(%i32.builtin)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.059: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32.builtin) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.impl_witness: <witness> = impl_witness file.%ImplicitAs.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.54f: %ImplicitAs.type.61e = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness) [concrete]
-// CHECK:STDOUT:   %.f22: type = fn_type_with_self_type %ImplicitAs.Convert.type.059, %ImplicitAs.facet.54f [concrete]
-// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.type.049d3a.1: type = fn_type @i32.builtin.as.Add.impl.Op.loc15_35.1, @i32.builtin.as.Add.impl(%ImplicitAs.facet.54f) [concrete]
-// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.1fb3b5.1: %i32.builtin.as.Add.impl.Op.type.049d3a.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.6c5: %ImplicitAs.type.78a = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness) [concrete]
+// CHECK:STDOUT:   %.c90: type = fn_type_with_self_type %ImplicitAs.Convert.type.059, %ImplicitAs.facet.6c5 [concrete]
+// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.type.0b4a10.1: type = fn_type @i32.builtin.as.Add.impl.Op.loc15_35.1, @i32.builtin.as.Add.impl(%ImplicitAs.facet.6c5) [concrete]
+// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.fd30e1.1: %i32.builtin.as.Add.impl.Op.type.0b4a10.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.713: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.da2: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %int_2.5a1: %i32.builtin = int_value 2 [concrete]
-// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.specific_fn.01379b.2: <specific function> = specific_function %i32.builtin.as.Add.impl.Op.1fb3b5.1, @i32.builtin.as.Add.impl.Op.loc15_35.1(%ImplicitAs.facet.54f) [concrete]
+// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.specific_fn.f2b803.2: <specific function> = specific_function %i32.builtin.as.Add.impl.Op.fd30e1.1, @i32.builtin.as.Add.impl.Op.loc15_35.1(%ImplicitAs.facet.6c5) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -137,21 +137,21 @@ fn Call() -> Int(32) {
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %a.ref: %i32.builtin = name_ref a, %a
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %ImplicitAs.facet.loc25_14.1: %ImplicitAs.type.61e = facet_value Core.IntLiteral, (constants.%ImplicitAs.impl_witness) [concrete = constants.%ImplicitAs.facet.54f]
-// CHECK:STDOUT:   %.loc25_14.1: %ImplicitAs.type.61e = converted Core.IntLiteral, %ImplicitAs.facet.loc25_14.1 [concrete = constants.%ImplicitAs.facet.54f]
-// CHECK:STDOUT:   %ImplicitAs.facet.loc25_14.2: %ImplicitAs.type.61e = facet_value Core.IntLiteral, (constants.%ImplicitAs.impl_witness) [concrete = constants.%ImplicitAs.facet.54f]
-// CHECK:STDOUT:   %.loc25_14.2: %ImplicitAs.type.61e = converted Core.IntLiteral, %ImplicitAs.facet.loc25_14.2 [concrete = constants.%ImplicitAs.facet.54f]
+// CHECK:STDOUT:   %ImplicitAs.facet.loc25_14.1: %ImplicitAs.type.78a = facet_value Core.IntLiteral, (constants.%ImplicitAs.impl_witness) [concrete = constants.%ImplicitAs.facet.6c5]
+// CHECK:STDOUT:   %.loc25_14.1: %ImplicitAs.type.78a = converted Core.IntLiteral, %ImplicitAs.facet.loc25_14.1 [concrete = constants.%ImplicitAs.facet.6c5]
+// CHECK:STDOUT:   %ImplicitAs.facet.loc25_14.2: %ImplicitAs.type.78a = facet_value Core.IntLiteral, (constants.%ImplicitAs.impl_witness) [concrete = constants.%ImplicitAs.facet.6c5]
+// CHECK:STDOUT:   %.loc25_14.2: %ImplicitAs.type.78a = converted Core.IntLiteral, %ImplicitAs.facet.loc25_14.2 [concrete = constants.%ImplicitAs.facet.6c5]
 // CHECK:STDOUT:   <elided>
-// CHECK:STDOUT:   %.loc25_14.3: %i32.builtin.as.Add.impl.Op.type.049d3a.1 = specific_constant @i32.builtin.as.Add.impl.%i32.builtin.as.Add.impl.Op.decl.loc15_35.1, @i32.builtin.as.Add.impl(constants.%ImplicitAs.facet.54f) [concrete = constants.%i32.builtin.as.Add.impl.Op.1fb3b5.1]
-// CHECK:STDOUT:   %Op.ref.loc25: %i32.builtin.as.Add.impl.Op.type.049d3a.1 = name_ref Op, %.loc25_14.3 [concrete = constants.%i32.builtin.as.Add.impl.Op.1fb3b5.1]
-// CHECK:STDOUT:   %impl.elem0.loc25_14: %.f22 = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %bound_method.loc25_14: <bound method> = bound_method %int_2, %impl.elem0.loc25_14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.713]
+// CHECK:STDOUT:   %.loc25_14.3: %i32.builtin.as.Add.impl.Op.type.0b4a10.1 = specific_constant @i32.builtin.as.Add.impl.%i32.builtin.as.Add.impl.Op.decl.loc15_35.1, @i32.builtin.as.Add.impl(constants.%ImplicitAs.facet.6c5) [concrete = constants.%i32.builtin.as.Add.impl.Op.fd30e1.1]
+// CHECK:STDOUT:   %Op.ref.loc25: %i32.builtin.as.Add.impl.Op.type.0b4a10.1 = name_ref Op, %.loc25_14.3 [concrete = constants.%i32.builtin.as.Add.impl.Op.fd30e1.1]
+// CHECK:STDOUT:   %impl.elem0.loc25_14: %.c90 = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %bound_method.loc25_14: <bound method> = bound_method %int_2, %impl.elem0.loc25_14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.da2]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_14: init %i32.builtin = call %bound_method.loc25_14(%int_2) [concrete = constants.%int_2.5a1]
 // CHECK:STDOUT:   %.loc25_14.4: %i32.builtin = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_14 [concrete = constants.%int_2.5a1]
 // CHECK:STDOUT:   %.loc25_14.5: %i32.builtin = converted %int_2, %.loc25_14.4 [concrete = constants.%int_2.5a1]
-// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.specific_fn: <specific function> = specific_function %Op.ref.loc25, @i32.builtin.as.Add.impl.Op.loc15_35.1(constants.%ImplicitAs.facet.54f) [concrete = constants.%i32.builtin.as.Add.impl.Op.specific_fn.01379b.2]
-// CHECK:STDOUT:   %impl.elem0.loc25_13: %.f22 = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %bound_method.loc25_13: <bound method> = bound_method %int_2, %impl.elem0.loc25_13 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.713]
+// CHECK:STDOUT:   %i32.builtin.as.Add.impl.Op.specific_fn: <specific function> = specific_function %Op.ref.loc25, @i32.builtin.as.Add.impl.Op.loc15_35.1(constants.%ImplicitAs.facet.6c5) [concrete = constants.%i32.builtin.as.Add.impl.Op.specific_fn.f2b803.2]
+// CHECK:STDOUT:   %impl.elem0.loc25_13: %.c90 = impl_witness_access constants.%ImplicitAs.impl_witness, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %bound_method.loc25_13: <bound method> = bound_method %int_2, %impl.elem0.loc25_13 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.da2]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_13: init %i32.builtin = call %bound_method.loc25_13(%int_2) [concrete = constants.%int_2.5a1]
 // CHECK:STDOUT:   %.loc25_13.1: %i32.builtin = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25_13 [concrete = constants.%int_2.5a1]
 // CHECK:STDOUT:   %.loc25_13.2: %i32.builtin = converted %int_2, %.loc25_13.1 [concrete = constants.%int_2.5a1]
diff --git a/toolchain/check/testdata/impl/import_builtin_call.carbon b/toolchain/check/testdata/impl/import_builtin_call.carbon
index 3205ea6301e6..1384ae1b1bcc 100644
--- a/toolchain/check/testdata/impl/import_builtin_call.carbon
+++ b/toolchain/check/testdata/impl/import_builtin_call.carbon
@@ -86,7 +86,7 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %Add.type: type = facet_type <@Add> [concrete]
 // CHECK:STDOUT:   %Self: %Add.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.8f9: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.2f8: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Add.Op.type: type = fn_type @Add.Op [concrete]
 // CHECK:STDOUT:   %Add.Op: %Add.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Add.assoc_type: type = assoc_entity_type @Add [concrete]
@@ -110,14 +110,14 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%N) [symbolic]
 // CHECK:STDOUT:   %MyInt.as.Add.impl.Op: %MyInt.as.Add.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.fc7: <witness> = require_complete_type %MyInt [symbolic]
-// CHECK:STDOUT:   %Add.facet.0e5: %Add.type = facet_value %MyInt, (%Add.impl_witness) [symbolic]
+// CHECK:STDOUT:   %Add.facet.ab8: %Add.type = facet_value %MyInt, (%Add.impl_witness) [symbolic]
 // CHECK:STDOUT:   %Double.type: type = fn_type @Double [concrete]
 // CHECK:STDOUT:   %Double: %Double.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Add.lookup_impl_witness: <witness> = lookup_impl_witness %MyInt, @Add [symbolic]
-// CHECK:STDOUT:   %Add.facet.5a7: %Add.type = facet_value %MyInt, (%Add.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.0a6: type = fn_type_with_self_type %Add.Op.type, %Add.facet.5a7 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.0a6 = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Add.Op(%Add.facet.5a7) [symbolic]
+// CHECK:STDOUT:   %Add.facet.1d5: %Add.type = facet_value %MyInt, (%Add.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.730: type = fn_type_with_self_type %Add.Op.type, %Add.facet.1d5 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.730 = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Add.Op(%Add.facet.1d5) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -216,12 +216,12 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: interface @Add {
 // CHECK:STDOUT:   %Self: %Add.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Add.Op.decl: %Add.Op.type = fn_decl @Add.Op [concrete = constants.%Add.Op] {
-// CHECK:STDOUT:     %self.patt: @Add.Op.%pattern_type (%pattern_type.8f9) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Add.Op.%pattern_type (%pattern_type.8f9) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %other.patt: @Add.Op.%pattern_type (%pattern_type.8f9) = binding_pattern other [concrete]
-// CHECK:STDOUT:     %other.param_patt: @Add.Op.%pattern_type (%pattern_type.8f9) = value_param_pattern %other.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @Add.Op.%pattern_type (%pattern_type.8f9) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @Add.Op.%pattern_type (%pattern_type.8f9) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @Add.Op.%pattern_type (%pattern_type.2f8) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Add.Op.%pattern_type (%pattern_type.2f8) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %other.patt: @Add.Op.%pattern_type (%pattern_type.2f8) = binding_pattern other [concrete]
+// CHECK:STDOUT:     %other.param_patt: @Add.Op.%pattern_type (%pattern_type.2f8) = value_param_pattern %other.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @Add.Op.%pattern_type (%pattern_type.2f8) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @Add.Op.%pattern_type (%pattern_type.2f8) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %Self.ref.loc5_37: %Add.type = name_ref Self, @Add.%Self [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:     %Self.as_type.loc5_37: type = facet_access_type %Self.ref.loc5_37 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)]
@@ -315,7 +315,7 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: generic fn @Add.Op(@Add.%Self: %Add.type) {
 // CHECK:STDOUT:   %Self: %Add.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type (constants.%pattern_type.8f9)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type (constants.%pattern_type.2f8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @Add.Op.%Self.as_type.loc5_15.1 (%Self.as_type), %other.param: @Add.Op.%Self.as_type.loc5_15.1 (%Self.as_type)) -> @Add.Op.%Self.as_type.loc5_15.1 (%Self.as_type);
 // CHECK:STDOUT: }
@@ -342,9 +342,9 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %MyInt.loc19_39.1 [symbolic = %require_complete (constants.%require_complete.fc7)]
 // CHECK:STDOUT:   %Add.lookup_impl_witness: <witness> = lookup_impl_witness %MyInt.loc19_39.1, @Add [symbolic = %Add.lookup_impl_witness (constants.%Add.lookup_impl_witness)]
-// CHECK:STDOUT:   %Add.facet.loc20_11: %Add.type = facet_value %MyInt.loc19_39.1, (%Add.lookup_impl_witness) [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.5a7)]
-// CHECK:STDOUT:   %.loc20_11: type = fn_type_with_self_type constants.%Add.Op.type, %Add.facet.loc20_11 [symbolic = %.loc20_11 (constants.%.0a6)]
-// CHECK:STDOUT:   %impl.elem0.loc20_11.2: @Double.%.loc20_11 (%.0a6) = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc20_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Add.facet.loc20_11: %Add.type = facet_value %MyInt.loc19_39.1, (%Add.lookup_impl_witness) [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.1d5)]
+// CHECK:STDOUT:   %.loc20_11: type = fn_type_with_self_type constants.%Add.Op.type, %Add.facet.loc20_11 [symbolic = %.loc20_11 (constants.%.730)]
+// CHECK:STDOUT:   %impl.elem0.loc20_11.2: @Double.%.loc20_11 (%.730) = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc20_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc20_11.2: <specific function> = specific_impl_function %impl.elem0.loc20_11.2, @Add.Op(%Add.facet.loc20_11) [symbolic = %specific_impl_fn.loc20_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @Double.%MyInt.loc19_39.1 (%MyInt)) -> @Double.%MyInt.loc19_39.1 (%MyInt) {
@@ -352,14 +352,14 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:     %x.ref.loc20_10: @Double.%MyInt.loc19_39.1 (%MyInt) = name_ref x, %x
 // CHECK:STDOUT:     %Add.ref: type = name_ref Add, file.%Add.decl [concrete = constants.%Add.type]
 // CHECK:STDOUT:     %Op.ref: %Add.assoc_type = name_ref Op, @Add.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:     %impl.elem0.loc20_11.1: @Double.%.loc20_11 (%.0a6) = impl_witness_access constants.%Add.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc20_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc20_11.1: @Double.%.loc20_11 (%.730) = impl_witness_access constants.%Add.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc20_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc20_11: <bound method> = bound_method %x.ref.loc20_10, %impl.elem0.loc20_11.1
 // CHECK:STDOUT:     %x.ref.loc20_21: @Double.%MyInt.loc19_39.1 (%MyInt) = name_ref x, %x
-// CHECK:STDOUT:     %Add.facet.loc20_22.1: %Add.type = facet_value constants.%MyInt, (constants.%Add.lookup_impl_witness) [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.5a7)]
-// CHECK:STDOUT:     %.loc20_22.1: %Add.type = converted constants.%MyInt, %Add.facet.loc20_22.1 [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.5a7)]
-// CHECK:STDOUT:     %Add.facet.loc20_22.2: %Add.type = facet_value constants.%MyInt, (constants.%Add.lookup_impl_witness) [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.5a7)]
-// CHECK:STDOUT:     %.loc20_22.2: %Add.type = converted constants.%MyInt, %Add.facet.loc20_22.2 [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.5a7)]
-// CHECK:STDOUT:     %specific_impl_fn.loc20_11.1: <specific function> = specific_impl_function %impl.elem0.loc20_11.1, @Add.Op(constants.%Add.facet.5a7) [symbolic = %specific_impl_fn.loc20_11.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %Add.facet.loc20_22.1: %Add.type = facet_value constants.%MyInt, (constants.%Add.lookup_impl_witness) [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.1d5)]
+// CHECK:STDOUT:     %.loc20_22.1: %Add.type = converted constants.%MyInt, %Add.facet.loc20_22.1 [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.1d5)]
+// CHECK:STDOUT:     %Add.facet.loc20_22.2: %Add.type = facet_value constants.%MyInt, (constants.%Add.lookup_impl_witness) [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.1d5)]
+// CHECK:STDOUT:     %.loc20_22.2: %Add.type = converted constants.%MyInt, %Add.facet.loc20_22.2 [symbolic = %Add.facet.loc20_11 (constants.%Add.facet.1d5)]
+// CHECK:STDOUT:     %specific_impl_fn.loc20_11.1: <specific function> = specific_impl_function %impl.elem0.loc20_11.1, @Add.Op(constants.%Add.facet.1d5) [symbolic = %specific_impl_fn.loc20_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc20_22: <bound method> = bound_method %x.ref.loc20_10, %specific_impl_fn.loc20_11.1
 // CHECK:STDOUT:     %.loc20_22.3: init @Double.%MyInt.loc19_39.1 (%MyInt) = call %bound_method.loc20_22(%x.ref.loc20_10, %x.ref.loc20_21)
 // CHECK:STDOUT:     %.loc20_23.1: @Double.%MyInt.loc19_39.1 (%MyInt) = value_of_initializer %.loc20_22.3
@@ -371,7 +371,7 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: specific @Add.Op(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8f9
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2f8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @MyInt(constants.%N) {
@@ -400,8 +400,8 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.0e5) {
-// CHECK:STDOUT:   %Self => constants.%Add.facet.0e5
+// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.ab8) {
+// CHECK:STDOUT:   %Self => constants.%Add.facet.ab8
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%MyInt
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a71
 // CHECK:STDOUT: }
@@ -412,8 +412,8 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.5a7) {
-// CHECK:STDOUT:   %Self => constants.%Add.facet.5a7
+// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.1d5) {
+// CHECK:STDOUT:   %Self => constants.%Add.facet.1d5
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%MyInt
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a71
 // CHECK:STDOUT: }
@@ -442,27 +442,27 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %Add.Op.type: type = fn_type @Add.Op [concrete]
 // CHECK:STDOUT:   %Add.Op: %Add.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.8f9: type = pattern_type %Self.as_type [symbolic]
-// CHECK:STDOUT:   %Add.impl_witness.e7c: <witness> = impl_witness imports.%Add.impl_witness_table, @MyInt.as.Add.impl(%N) [symbolic]
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type.883: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%N) [symbolic]
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.8bc: %MyInt.as.Add.impl.Op.type.883 = struct_value () [symbolic]
+// CHECK:STDOUT:   %pattern_type.2f8: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Add.impl_witness.281: <witness> = impl_witness imports.%Add.impl_witness_table, @MyInt.as.Add.impl(%N) [symbolic]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type.701: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%N) [symbolic]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.649: %MyInt.as.Add.impl.Op.type.701 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.a71: type = pattern_type %MyInt.09f [symbolic]
 // CHECK:STDOUT:   %require_complete.fc7: <witness> = require_complete_type %MyInt.09f [symbolic]
-// CHECK:STDOUT:   %Add.impl_witness.976: <witness> = impl_witness imports.%Add.impl_witness_table, @MyInt.as.Add.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type.5a6: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.cf9: %MyInt.as.Add.impl.Op.type.5a6 = struct_value () [concrete]
-// CHECK:STDOUT:   %Add.facet.434: %Add.type = facet_value %MyInt.f30, (%Add.impl_witness.976) [concrete]
-// CHECK:STDOUT:   %.39b: type = fn_type_with_self_type %Add.Op.type, %Add.facet.434 [concrete]
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.specific_fn: <specific function> = specific_function %MyInt.as.Add.impl.Op.cf9, @MyInt.as.Add.impl.Op(%int_64) [concrete]
+// CHECK:STDOUT:   %Add.impl_witness.ab3: <witness> = impl_witness imports.%Add.impl_witness_table, @MyInt.as.Add.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type.921: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.5b9: %MyInt.as.Add.impl.Op.type.921 = struct_value () [concrete]
+// CHECK:STDOUT:   %Add.facet.63c: %Add.type = facet_value %MyInt.f30, (%Add.impl_witness.ab3) [concrete]
+// CHECK:STDOUT:   %.2ed: type = fn_type_with_self_type %Add.Op.type, %Add.facet.63c [concrete]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.specific_fn: <specific function> = specific_function %MyInt.as.Add.impl.Op.5b9, @MyInt.as.Add.impl.Op(%int_64) [concrete]
 // CHECK:STDOUT:   %CallImportedDouble.type: type = fn_type @CallImportedDouble [concrete]
 // CHECK:STDOUT:   %CallImportedDouble: %CallImportedDouble.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Double.type: type = fn_type @Double [concrete]
 // CHECK:STDOUT:   %Double: %Double.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Add.lookup_impl_witness: <witness> = lookup_impl_witness %MyInt.09f, @Add [symbolic]
-// CHECK:STDOUT:   %Add.facet.5a7: %Add.type = facet_value %MyInt.09f, (%Add.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.0a6: type = fn_type_with_self_type %Add.Op.type, %Add.facet.5a7 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.0a6 = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Add.Op(%Add.facet.5a7) [symbolic]
+// CHECK:STDOUT:   %Add.facet.1d5: %Add.type = facet_value %MyInt.09f, (%Add.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.730: type = fn_type_with_self_type %Add.Op.type, %Add.facet.1d5 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.730 = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Add.Op(%Add.facet.1d5) [symbolic]
 // CHECK:STDOUT:   %Double.specific_fn: <specific function> = specific_function %Double, @Double(%int_64) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -475,17 +475,17 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %Main.import_ref.f1e294.1: Core.IntLiteral = import_ref Main//generic_impl, loc11_13, loaded [symbolic = @MyInt.%N (constants.%N)]
 // CHECK:STDOUT:   %Main.import_ref.9e9: <witness> = import_ref Main//generic_impl, loc13_1, loaded [symbolic = @MyInt.%complete_type (constants.%complete_type.a87)]
 // CHECK:STDOUT:   %Main.import_ref.697 = import_ref Main//generic_impl, inst94 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.07c = import_ref Main//generic_impl, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.ff9 = import_ref Main//generic_impl, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f99: %Add.assoc_type = import_ref Main//generic_impl, loc5_41, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.Op = import_ref Main//generic_impl, Op, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5a3: %Add.Op.type = import_ref Main//generic_impl, loc5_41, loaded [concrete = constants.%Add.Op]
-// CHECK:STDOUT:   %Main.import_ref.e5e: %Add.type = import_ref Main//generic_impl, inst17 [no loc], loaded [symbolic = constants.%Self]
-// CHECK:STDOUT:   %Main.import_ref.9fe: <witness> = import_ref Main//generic_impl, loc15_48, loaded [symbolic = @MyInt.as.Add.impl.%Add.impl_witness (constants.%Add.impl_witness.e7c)]
+// CHECK:STDOUT:   %Main.import_ref.2a7: %Add.type = import_ref Main//generic_impl, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.bd5: <witness> = import_ref Main//generic_impl, loc15_48, loaded [symbolic = @MyInt.as.Add.impl.%Add.impl_witness (constants.%Add.impl_witness.281)]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.2: Core.IntLiteral = import_ref Main//generic_impl, loc15_14, loaded [symbolic = @MyInt.as.Add.impl.%N (constants.%N)]
 // CHECK:STDOUT:   %Main.import_ref.719: type = import_ref Main//generic_impl, loc15_39, loaded [symbolic = @MyInt.as.Add.impl.%MyInt (constants.%MyInt.09f)]
 // CHECK:STDOUT:   %Main.import_ref.bf0: type = import_ref Main//generic_impl, loc15_44, loaded [concrete = constants.%Add.type]
-// CHECK:STDOUT:   %Main.import_ref.19b: @MyInt.as.Add.impl.%MyInt.as.Add.impl.Op.type (%MyInt.as.Add.impl.Op.type.883) = import_ref Main//generic_impl, loc16_42, loaded [symbolic = @MyInt.as.Add.impl.%MyInt.as.Add.impl.Op (constants.%MyInt.as.Add.impl.Op.8bc)]
-// CHECK:STDOUT:   %Add.impl_witness_table = impl_witness_table (%Main.import_ref.19b), @MyInt.as.Add.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.5f9: @MyInt.as.Add.impl.%MyInt.as.Add.impl.Op.type (%MyInt.as.Add.impl.Op.type.701) = import_ref Main//generic_impl, loc16_42, loaded [symbolic = @MyInt.as.Add.impl.%MyInt.as.Add.impl.Op (constants.%MyInt.as.Add.impl.Op.649)]
+// CHECK:STDOUT:   %Add.impl_witness_table = impl_witness_table (%Main.import_ref.5f9), @MyInt.as.Add.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.3: Core.IntLiteral = import_ref Main//generic_impl, loc15_14, loaded [symbolic = @MyInt.as.Add.impl.%N (constants.%N)]
 // CHECK:STDOUT:   %Main.import_ref.f1e294.4: Core.IntLiteral = import_ref Main//generic_impl, loc19_11, loaded [symbolic = @Double.%N (constants.%N)]
 // CHECK:STDOUT: }
@@ -543,7 +543,7 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Add [from "generic_impl.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.07c
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.ff9
 // CHECK:STDOUT:   .Op = imports.%Main.import_ref.f99
 // CHECK:STDOUT:   witness = (imports.%Main.Op)
 // CHECK:STDOUT: }
@@ -551,16 +551,16 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: generic impl @MyInt.as.Add.impl(imports.%Main.import_ref.f1e294.2: Core.IntLiteral) [from "generic_impl.carbon"] {
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N (constants.%N)]
 // CHECK:STDOUT:   %MyInt: type = class_type @MyInt, @MyInt(%N) [symbolic = %MyInt (constants.%MyInt.09f)]
-// CHECK:STDOUT:   %Add.impl_witness: <witness> = impl_witness imports.%Add.impl_witness_table, @MyInt.as.Add.impl(%N) [symbolic = %Add.impl_witness (constants.%Add.impl_witness.e7c)]
+// CHECK:STDOUT:   %Add.impl_witness: <witness> = impl_witness imports.%Add.impl_witness_table, @MyInt.as.Add.impl(%N) [symbolic = %Add.impl_witness (constants.%Add.impl_witness.281)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%N) [symbolic = %MyInt.as.Add.impl.Op.type (constants.%MyInt.as.Add.impl.Op.type.883)]
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op: @MyInt.as.Add.impl.%MyInt.as.Add.impl.Op.type (%MyInt.as.Add.impl.Op.type.883) = struct_value () [symbolic = %MyInt.as.Add.impl.Op (constants.%MyInt.as.Add.impl.Op.8bc)]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type: type = fn_type @MyInt.as.Add.impl.Op, @MyInt.as.Add.impl(%N) [symbolic = %MyInt.as.Add.impl.Op.type (constants.%MyInt.as.Add.impl.Op.type.701)]
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op: @MyInt.as.Add.impl.%MyInt.as.Add.impl.Op.type (%MyInt.as.Add.impl.Op.type.701) = struct_value () [symbolic = %MyInt.as.Add.impl.Op (constants.%MyInt.as.Add.impl.Op.649)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %MyInt [symbolic = %require_complete (constants.%require_complete.fc7)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: imports.%Main.import_ref.719 as imports.%Main.import_ref.bf0 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.9fe
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.bd5
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -585,7 +585,7 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %x.ref.loc9_10: %MyInt.f30 = name_ref x, %x
 // CHECK:STDOUT:   %Add.ref: type = name_ref Add, imports.%Main.Add [concrete = constants.%Add.type]
 // CHECK:STDOUT:   %Op.ref: %Add.assoc_type = name_ref Op, imports.%Main.import_ref.f99 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.39b = impl_witness_access constants.%Add.impl_witness.976, element0 [concrete = constants.%MyInt.as.Add.impl.Op.cf9]
+// CHECK:STDOUT:   %impl.elem0: %.2ed = impl_witness_access constants.%Add.impl_witness.ab3, element0 [concrete = constants.%MyInt.as.Add.impl.Op.5b9]
 // CHECK:STDOUT:   %bound_method.loc9_11: <bound method> = bound_method %x.ref.loc9_10, %impl.elem0
 // CHECK:STDOUT:   %x.ref.loc9_21: %MyInt.f30 = name_ref x, %x
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @MyInt.as.Add.impl.Op(constants.%int_64) [concrete = constants.%MyInt.as.Add.impl.Op.specific_fn]
@@ -596,10 +596,10 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   return %.loc9_23.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Add.Op(imports.%Main.import_ref.e5e: %Add.type) [from "generic_impl.carbon"] {
+// CHECK:STDOUT: generic fn @Add.Op(imports.%Main.import_ref.2a7: %Add.type) [from "generic_impl.carbon"] {
 // CHECK:STDOUT:   %Self: %Add.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.8f9)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.2f8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -633,9 +633,9 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %MyInt [symbolic = %require_complete (constants.%require_complete.fc7)]
 // CHECK:STDOUT:   %Add.lookup_impl_witness: <witness> = lookup_impl_witness %MyInt, @Add [symbolic = %Add.lookup_impl_witness (constants.%Add.lookup_impl_witness)]
-// CHECK:STDOUT:   %Add.facet: %Add.type = facet_value %MyInt, (%Add.lookup_impl_witness) [symbolic = %Add.facet (constants.%Add.facet.5a7)]
-// CHECK:STDOUT:   %.1: type = fn_type_with_self_type constants.%Add.Op.type, %Add.facet [symbolic = %.1 (constants.%.0a6)]
-// CHECK:STDOUT:   %impl.elem0: @Double.%.1 (%.0a6) = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %Add.facet: %Add.type = facet_value %MyInt, (%Add.lookup_impl_witness) [symbolic = %Add.facet (constants.%Add.facet.1d5)]
+// CHECK:STDOUT:   %.1: type = fn_type_with_self_type constants.%Add.Op.type, %Add.facet [symbolic = %.1 (constants.%.730)]
+// CHECK:STDOUT:   %impl.elem0: @Double.%.1 (%.730) = impl_witness_access %Add.lookup_impl_witness, element0 [symbolic = %impl.elem0 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Add.Op(%Add.facet) [symbolic = %specific_impl_fn (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
@@ -662,17 +662,17 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: specific @Add.Op(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8f9
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2f8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @MyInt.as.Add.impl(constants.%N) {
 // CHECK:STDOUT:   %N => constants.%N
 // CHECK:STDOUT:   %MyInt => constants.%MyInt.09f
-// CHECK:STDOUT:   %Add.impl_witness => constants.%Add.impl_witness.e7c
+// CHECK:STDOUT:   %Add.impl_witness => constants.%Add.impl_witness.281
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type => constants.%MyInt.as.Add.impl.Op.type.883
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op => constants.%MyInt.as.Add.impl.Op.8bc
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type => constants.%MyInt.as.Add.impl.Op.type.701
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op => constants.%MyInt.as.Add.impl.Op.649
 // CHECK:STDOUT:   %require_complete => constants.%require_complete.fc7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -685,11 +685,11 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT: specific @MyInt.as.Add.impl(constants.%int_64) {
 // CHECK:STDOUT:   %N => constants.%int_64
 // CHECK:STDOUT:   %MyInt => constants.%MyInt.f30
-// CHECK:STDOUT:   %Add.impl_witness => constants.%Add.impl_witness.976
+// CHECK:STDOUT:   %Add.impl_witness => constants.%Add.impl_witness.ab3
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type => constants.%MyInt.as.Add.impl.Op.type.5a6
-// CHECK:STDOUT:   %MyInt.as.Add.impl.Op => constants.%MyInt.as.Add.impl.Op.cf9
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op.type => constants.%MyInt.as.Add.impl.Op.type.921
+// CHECK:STDOUT:   %MyInt.as.Add.impl.Op => constants.%MyInt.as.Add.impl.Op.5b9
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.4a1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -707,8 +707,8 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a71
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.5a7) {
-// CHECK:STDOUT:   %Self => constants.%Add.facet.5a7
+// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.1d5) {
+// CHECK:STDOUT:   %Self => constants.%Add.facet.1d5
 // CHECK:STDOUT:   %Self.as_type => constants.%MyInt.09f
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a71
 // CHECK:STDOUT: }
@@ -720,15 +720,15 @@ var n: Int(64) = MakeFromClass(FromLiteral(64) as OtherInt);
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.4a1
-// CHECK:STDOUT:   %Add.lookup_impl_witness => constants.%Add.impl_witness.976
-// CHECK:STDOUT:   %Add.facet => constants.%Add.facet.434
-// CHECK:STDOUT:   %.1 => constants.%.39b
-// CHECK:STDOUT:   %impl.elem0 => constants.%MyInt.as.Add.impl.Op.cf9
+// CHECK:STDOUT:   %Add.lookup_impl_witness => constants.%Add.impl_witness.ab3
+// CHECK:STDOUT:   %Add.facet => constants.%Add.facet.63c
+// CHECK:STDOUT:   %.1 => constants.%.2ed
+// CHECK:STDOUT:   %impl.elem0 => constants.%MyInt.as.Add.impl.Op.5b9
 // CHECK:STDOUT:   %specific_impl_fn => constants.%MyInt.as.Add.impl.Op.specific_fn
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.434) {
-// CHECK:STDOUT:   %Self => constants.%Add.facet.434
+// CHECK:STDOUT: specific @Add.Op(constants.%Add.facet.63c) {
+// CHECK:STDOUT:   %Self => constants.%Add.facet.63c
 // CHECK:STDOUT:   %Self.as_type => constants.%MyInt.f30
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e50
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/import_compound.carbon b/toolchain/check/testdata/impl/import_compound.carbon
index da4364e92141..4f1aaa17aa1a 100644
--- a/toolchain/check/testdata/impl/import_compound.carbon
+++ b/toolchain/check/testdata/impl/import_compound.carbon
@@ -102,7 +102,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %NonInstance.type: type = facet_type <@NonInstance> [concrete]
-// CHECK:STDOUT:   %Self.73c: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4db: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NonInstance.F.type: type = fn_type @NonInstance.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %NonInstance.F: %NonInstance.F.type = struct_value () [concrete]
@@ -114,9 +114,9 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %struct_type.i.as.NonInstance.impl.F: %struct_type.i.as.NonInstance.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %NonInstance.facet: %NonInstance.type = facet_value %struct_type.i, (%NonInstance.impl_witness) [concrete]
 // CHECK:STDOUT:   %Instance.type: type = facet_type <@Instance> [concrete]
-// CHECK:STDOUT:   %Self.cf8: %Instance.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.cf8 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4e4: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.395: %Instance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.395 [symbolic]
+// CHECK:STDOUT:   %pattern_type.6b2: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Instance.G.type: type = fn_type @Instance.G [concrete]
 // CHECK:STDOUT:   %Instance.G: %Instance.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Instance.assoc_type: type = assoc_entity_type @Instance [concrete]
@@ -163,7 +163,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance {
-// CHECK:STDOUT:   %Self: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.73c]
+// CHECK:STDOUT:   %Self: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4db]
 // CHECK:STDOUT:   %NonInstance.F.decl: %NonInstance.F.type = fn_decl @NonInstance.F [concrete = constants.%NonInstance.F] {} {}
 // CHECK:STDOUT:   %assoc0: %NonInstance.assoc_type = assoc_entity element0, %NonInstance.F.decl [concrete = constants.%assoc0.525]
 // CHECK:STDOUT:
@@ -174,14 +174,14 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Instance {
-// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.cf8]
+// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.395]
 // CHECK:STDOUT:   %Instance.G.decl: %Instance.G.type = fn_decl @Instance.G [concrete = constants.%Instance.G] {
-// CHECK:STDOUT:     %self.patt: @Instance.G.%pattern_type (%pattern_type.4e4) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Instance.G.%pattern_type (%pattern_type.4e4) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Instance.G.%pattern_type (%pattern_type.6b2) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Instance.G.%pattern_type (%pattern_type.6b2) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @Instance.G.%Self.as_type.loc12_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc12_14.1: type = splice_block %.loc12_14.2 [symbolic = %Self.as_type.loc12_14.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:       %Self.ref: %Instance.type = name_ref Self, @Instance.%Self [symbolic = %Self (constants.%Self.cf8)]
+// CHECK:STDOUT:       %Self.ref: %Instance.type = name_ref Self, @Instance.%Self [symbolic = %Self (constants.%Self.395)]
 // CHECK:STDOUT:       %Self.as_type.loc12_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc12_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %.loc12_14.2: type = converted %Self.ref, %Self.as_type.loc12_14.2 [symbolic = %Self.as_type.loc12_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     }
@@ -228,9 +228,9 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Instance.G(@Instance.%Self: %Instance.type) {
-// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf8)]
+// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.395)]
 // CHECK:STDOUT:   %Self.as_type.loc12_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc12_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc12_14.1 [symbolic = %pattern_type (constants.%pattern_type.4e4)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc12_14.1 [symbolic = %pattern_type (constants.%pattern_type.6b2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @Instance.G.%Self.as_type.loc12_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -240,14 +240,14 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.73c) {}
+// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.4db) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @NonInstance.F(constants.%NonInstance.facet) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Instance.G(constants.%Self.cf8) {
-// CHECK:STDOUT:   %Self => constants.%Self.cf8
+// CHECK:STDOUT: specific @Instance.G(constants.%Self.395) {
+// CHECK:STDOUT:   %Self => constants.%Self.395
 // CHECK:STDOUT:   %Self.as_type.loc12_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4e4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6b2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Instance.G(constants.%Instance.facet) {
@@ -264,7 +264,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %NonInstanceCallImport: %NonInstanceCallImport.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.i: type = struct_type {.i: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %NonInstance.type: type = facet_type <@NonInstance> [concrete]
-// CHECK:STDOUT:   %Self.73c: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4db: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NonInstance.assoc_type: type = assoc_entity_type @NonInstance [concrete]
 // CHECK:STDOUT:   %assoc0: %NonInstance.assoc_type = assoc_entity element0, imports.%Main.import_ref.474 [concrete]
 // CHECK:STDOUT:   %NonInstance.F.type: type = fn_type @NonInstance.F [concrete]
@@ -272,7 +272,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %Instance.type: type = facet_type <@Instance> [concrete]
 // CHECK:STDOUT:   %NonInstance.impl_witness: <witness> = impl_witness imports.%NonInstance.impl_witness_table [concrete]
 // CHECK:STDOUT:   %NonInstance.facet: %NonInstance.type = facet_value %struct_type.i, (%NonInstance.impl_witness) [concrete]
-// CHECK:STDOUT:   %.923: type = fn_type_with_self_type %NonInstance.F.type, %NonInstance.facet [concrete]
+// CHECK:STDOUT:   %.d9d: type = fn_type_with_self_type %NonInstance.F.type, %NonInstance.facet [concrete]
 // CHECK:STDOUT:   %struct_type.i.as.NonInstance.impl.F.type: type = fn_type @struct_type.i.as.NonInstance.impl.F [concrete]
 // CHECK:STDOUT:   %struct_type.i.as.NonInstance.impl.F: %struct_type.i.as.NonInstance.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -284,22 +284,22 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.c55 = import_ref Main//lib, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.200 = import_ref Main//lib, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e3c: %NonInstance.assoc_type = import_ref Main//lib, loc4_9, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.F = import_ref Main//lib, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.474: %NonInstance.F.type = import_ref Main//lib, loc4_9, loaded [concrete = constants.%NonInstance.F]
-// CHECK:STDOUT:   %Main.import_ref.f85: %NonInstance.type = import_ref Main//lib, inst19 [no loc], loaded [symbolic = constants.%Self.73c]
-// CHECK:STDOUT:   %Main.import_ref.a26: <witness> = import_ref Main//lib, loc7_30, loaded [concrete = constants.%NonInstance.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.d2e: %NonInstance.type = import_ref Main//lib, inst19 [no loc], loaded [symbolic = constants.%Self.4db]
+// CHECK:STDOUT:   %Main.import_ref.68f: <witness> = import_ref Main//lib, loc7_30, loaded [concrete = constants.%NonInstance.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.1: type = import_ref Main//lib, loc7_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.ef5: type = import_ref Main//lib, loc7_18, loaded [concrete = constants.%NonInstance.type]
-// CHECK:STDOUT:   %Main.import_ref.dcd = import_ref Main//lib, inst45 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d81 = import_ref Main//lib, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f09 = import_ref Main//lib, loc12_21, unloaded
 // CHECK:STDOUT:   %Main.G = import_ref Main//lib, G, unloaded
-// CHECK:STDOUT:   %Main.import_ref.a9f = import_ref Main//lib, loc15_27, unloaded
+// CHECK:STDOUT:   %Main.import_ref.0be = import_ref Main//lib, loc15_27, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.2: type = import_ref Main//lib, loc15_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.b49: type = import_ref Main//lib, loc15_18, loaded [concrete = constants.%Instance.type]
-// CHECK:STDOUT:   %Main.import_ref.2d7: %struct_type.i.as.NonInstance.impl.F.type = import_ref Main//lib, loc8_10, loaded [concrete = constants.%struct_type.i.as.NonInstance.impl.F]
-// CHECK:STDOUT:   %NonInstance.impl_witness_table = impl_witness_table (%Main.import_ref.2d7), @struct_type.i.as.NonInstance.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.94f: %struct_type.i.as.NonInstance.impl.F.type = import_ref Main//lib, loc8_10, loaded [concrete = constants.%struct_type.i.as.NonInstance.impl.F]
+// CHECK:STDOUT:   %NonInstance.impl_witness_table = impl_witness_table (%Main.import_ref.94f), @struct_type.i.as.NonInstance.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -316,26 +316,26 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.c55
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.200
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.e3c
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Instance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.dcd
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d81
 // CHECK:STDOUT:   .G = imports.%Main.import_ref.f09
 // CHECK:STDOUT:   witness = (imports.%Main.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.NonInstance.impl: imports.%Main.import_ref.c9a3b6.1 as imports.%Main.import_ref.ef5 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.a26
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.68f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.Instance.impl: imports.%Main.import_ref.c9a3b6.2 as imports.%Main.import_ref.b49 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.a9f
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.0be
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @NonInstanceCallImport() {
@@ -347,18 +347,18 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %F.ref: %NonInstance.assoc_type = name_ref F, imports.%Main.import_ref.e3c [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %NonInstance.facet: %NonInstance.type = facet_value constants.%struct_type.i, (constants.%NonInstance.impl_witness) [concrete = constants.%NonInstance.facet]
 // CHECK:STDOUT:   %.loc6_11: %NonInstance.type = converted %struct_type.i, %NonInstance.facet [concrete = constants.%NonInstance.facet]
-// CHECK:STDOUT:   %impl.elem0: %.923 = impl_witness_access constants.%NonInstance.impl_witness, element0 [concrete = constants.%struct_type.i.as.NonInstance.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.d9d = impl_witness_access constants.%NonInstance.impl_witness, element0 [concrete = constants.%struct_type.i.as.NonInstance.impl.F]
 // CHECK:STDOUT:   %struct_type.i.as.NonInstance.impl.F.call: init %empty_tuple.type = call %impl.elem0()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @NonInstance.F(imports.%Main.import_ref.f85: %NonInstance.type) [from "lib.carbon"] {
+// CHECK:STDOUT: generic fn @NonInstance.F(imports.%Main.import_ref.d2e: %NonInstance.type) [from "lib.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @struct_type.i.as.NonInstance.impl.F [from "lib.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.73c) {}
+// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.4db) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_import_non-instance.carbon
 // CHECK:STDOUT:
@@ -369,7 +369,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %NonInstanceCallImportFail.type: type = fn_type @NonInstanceCallImportFail [concrete]
 // CHECK:STDOUT:   %NonInstanceCallImportFail: %NonInstanceCallImportFail.type = struct_value () [concrete]
 // CHECK:STDOUT:   %NonInstance.type: type = facet_type <@NonInstance> [concrete]
-// CHECK:STDOUT:   %Self.73c: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4db: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NonInstance.assoc_type: type = assoc_entity_type @NonInstance [concrete]
 // CHECK:STDOUT:   %assoc0.8ce: %NonInstance.assoc_type = assoc_entity element0, imports.%Main.import_ref.474 [concrete]
 // CHECK:STDOUT:   %NonInstance.F.type: type = fn_type @NonInstance.F [concrete]
@@ -387,19 +387,19 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.c55 = import_ref Main//lib, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.200 = import_ref Main//lib, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e3c: %NonInstance.assoc_type = import_ref Main//lib, loc4_9, loaded [concrete = constants.%assoc0.8ce]
 // CHECK:STDOUT:   %Main.F = import_ref Main//lib, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.474: %NonInstance.F.type = import_ref Main//lib, loc4_9, loaded [concrete = constants.%NonInstance.F]
-// CHECK:STDOUT:   %Main.import_ref.f85: %NonInstance.type = import_ref Main//lib, inst19 [no loc], loaded [symbolic = constants.%Self.73c]
+// CHECK:STDOUT:   %Main.import_ref.d2e: %NonInstance.type = import_ref Main//lib, inst19 [no loc], loaded [symbolic = constants.%Self.4db]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Main.import_ref.eb8 = import_ref Main//lib, loc7_30, unloaded
+// CHECK:STDOUT:   %Main.import_ref.1e1 = import_ref Main//lib, loc7_30, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.1: type = import_ref Main//lib, loc7_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.ef5: type = import_ref Main//lib, loc7_18, loaded [concrete = constants.%NonInstance.type]
-// CHECK:STDOUT:   %Main.import_ref.dcd = import_ref Main//lib, inst45 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d81 = import_ref Main//lib, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f09 = import_ref Main//lib, loc12_21, unloaded
 // CHECK:STDOUT:   %Main.G = import_ref Main//lib, G, unloaded
-// CHECK:STDOUT:   %Main.import_ref.a9f = import_ref Main//lib, loc15_27, unloaded
+// CHECK:STDOUT:   %Main.import_ref.0be = import_ref Main//lib, loc15_27, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.2: type = import_ref Main//lib, loc15_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.b49: type = import_ref Main//lib, loc15_18, loaded [concrete = constants.%Instance.type]
 // CHECK:STDOUT: }
@@ -429,26 +429,26 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.c55
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.200
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.e3c
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Instance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.dcd
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d81
 // CHECK:STDOUT:   .G = imports.%Main.import_ref.f09
 // CHECK:STDOUT:   witness = (imports.%Main.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.NonInstance.impl: imports.%Main.import_ref.c9a3b6.1 as imports.%Main.import_ref.ef5 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.eb8
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.1e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.Instance.impl: imports.%Main.import_ref.c9a3b6.2 as imports.%Main.import_ref.b49 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.a9f
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.0be
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @NonInstanceCallImportFail(%n.param: %struct_type.i) {
@@ -460,11 +460,11 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @NonInstance.F(imports.%Main.import_ref.f85: %NonInstance.type) [from "lib.carbon"] {
+// CHECK:STDOUT: generic fn @NonInstance.F(imports.%Main.import_ref.d2e: %NonInstance.type) [from "lib.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.73c) {}
+// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.4db) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_import_non-instance_indirect.carbon
 // CHECK:STDOUT:
@@ -476,7 +476,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %NonInstanceCallIndirectImport.type: type = fn_type @NonInstanceCallIndirectImport [concrete]
 // CHECK:STDOUT:   %NonInstanceCallIndirectImport: %NonInstanceCallIndirectImport.type = struct_value () [concrete]
 // CHECK:STDOUT:   %NonInstance.type: type = facet_type <@NonInstance> [concrete]
-// CHECK:STDOUT:   %Self.73c: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4db: %NonInstance.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NonInstance.assoc_type: type = assoc_entity_type @NonInstance [concrete]
 // CHECK:STDOUT:   %assoc0.8ce: %NonInstance.assoc_type = assoc_entity element0, imports.%Main.import_ref.474 [concrete]
 // CHECK:STDOUT:   %NonInstance.F.type: type = fn_type @NonInstance.F [concrete]
@@ -494,19 +494,19 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.c55 = import_ref Main//lib, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.200 = import_ref Main//lib, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e3c: %NonInstance.assoc_type = import_ref Main//lib, loc4_9, loaded [concrete = constants.%assoc0.8ce]
 // CHECK:STDOUT:   %Main.F = import_ref Main//lib, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.474: %NonInstance.F.type = import_ref Main//lib, loc4_9, loaded [concrete = constants.%NonInstance.F]
-// CHECK:STDOUT:   %Main.import_ref.f85: %NonInstance.type = import_ref Main//lib, inst19 [no loc], loaded [symbolic = constants.%Self.73c]
+// CHECK:STDOUT:   %Main.import_ref.d2e: %NonInstance.type = import_ref Main//lib, inst19 [no loc], loaded [symbolic = constants.%Self.4db]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Main.import_ref.eb8 = import_ref Main//lib, loc7_30, unloaded
+// CHECK:STDOUT:   %Main.import_ref.1e1 = import_ref Main//lib, loc7_30, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.1: type = import_ref Main//lib, loc7_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.ef5: type = import_ref Main//lib, loc7_18, loaded [concrete = constants.%NonInstance.type]
-// CHECK:STDOUT:   %Main.import_ref.dcd = import_ref Main//lib, inst45 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d81 = import_ref Main//lib, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f09 = import_ref Main//lib, loc12_21, unloaded
 // CHECK:STDOUT:   %Main.G = import_ref Main//lib, G, unloaded
-// CHECK:STDOUT:   %Main.import_ref.a9f = import_ref Main//lib, loc15_27, unloaded
+// CHECK:STDOUT:   %Main.import_ref.0be = import_ref Main//lib, loc15_27, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.2: type = import_ref Main//lib, loc15_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.b49: type = import_ref Main//lib, loc15_18, loaded [concrete = constants.%Instance.type]
 // CHECK:STDOUT: }
@@ -537,26 +537,26 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.c55
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.200
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.e3c
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Instance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.dcd
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d81
 // CHECK:STDOUT:   .G = imports.%Main.import_ref.f09
 // CHECK:STDOUT:   witness = (imports.%Main.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.NonInstance.impl: imports.%Main.import_ref.c9a3b6.1 as imports.%Main.import_ref.ef5 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.eb8
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.1e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.Instance.impl: imports.%Main.import_ref.c9a3b6.2 as imports.%Main.import_ref.b49 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.a9f
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.0be
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @NonInstanceCallIndirectImport(%p.param: %ptr) {
@@ -569,11 +569,11 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @NonInstance.F(imports.%Main.import_ref.f85: %NonInstance.type) [from "lib.carbon"] {
+// CHECK:STDOUT: generic fn @NonInstance.F(imports.%Main.import_ref.d2e: %NonInstance.type) [from "lib.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.73c) {}
+// CHECK:STDOUT: specific @NonInstance.F(constants.%Self.4db) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- import_instance_success.carbon
 // CHECK:STDOUT:
@@ -584,17 +584,17 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %InstanceCallImport.type: type = fn_type @InstanceCallImport [concrete]
 // CHECK:STDOUT:   %InstanceCallImport: %InstanceCallImport.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Instance.type: type = facet_type <@Instance> [concrete]
-// CHECK:STDOUT:   %Self.cf8: %Instance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.395: %Instance.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Instance.assoc_type: type = assoc_entity_type @Instance [concrete]
 // CHECK:STDOUT:   %assoc0: %Instance.assoc_type = assoc_entity element0, imports.%Main.import_ref.b4d [concrete]
 // CHECK:STDOUT:   %Instance.G.type: type = fn_type @Instance.G [concrete]
 // CHECK:STDOUT:   %Instance.G: %Instance.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.cf8 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4e4: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.395 [symbolic]
+// CHECK:STDOUT:   %pattern_type.6b2: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %NonInstance.type: type = facet_type <@NonInstance> [concrete]
 // CHECK:STDOUT:   %Instance.impl_witness: <witness> = impl_witness imports.%Instance.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Instance.facet: %Instance.type = facet_value %struct_type.i, (%Instance.impl_witness) [concrete]
-// CHECK:STDOUT:   %.efa: type = fn_type_with_self_type %Instance.G.type, %Instance.facet [concrete]
+// CHECK:STDOUT:   %.170: type = fn_type_with_self_type %Instance.G.type, %Instance.facet [concrete]
 // CHECK:STDOUT:   %struct_type.i.as.Instance.impl.G.type: type = fn_type @struct_type.i.as.Instance.impl.G [concrete]
 // CHECK:STDOUT:   %struct_type.i.as.Instance.impl.G: %struct_type.i.as.Instance.impl.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr: type = ptr_type %struct_type.i [concrete]
@@ -612,22 +612,22 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.dcd = import_ref Main//lib, inst45 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d81 = import_ref Main//lib, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.124: %Instance.assoc_type = import_ref Main//lib, loc12_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.G = import_ref Main//lib, G, unloaded
 // CHECK:STDOUT:   %Main.import_ref.b4d: %Instance.G.type = import_ref Main//lib, loc12_21, loaded [concrete = constants.%Instance.G]
-// CHECK:STDOUT:   %Main.import_ref.0d8: %Instance.type = import_ref Main//lib, inst45 [no loc], loaded [symbolic = constants.%Self.cf8]
-// CHECK:STDOUT:   %Main.import_ref.c55 = import_ref Main//lib, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.91e: %Instance.type = import_ref Main//lib, inst45 [no loc], loaded [symbolic = constants.%Self.395]
+// CHECK:STDOUT:   %Main.import_ref.200 = import_ref Main//lib, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.49c = import_ref Main//lib, loc4_9, unloaded
 // CHECK:STDOUT:   %Main.F = import_ref Main//lib, F, unloaded
-// CHECK:STDOUT:   %Main.import_ref.eb8 = import_ref Main//lib, loc7_30, unloaded
+// CHECK:STDOUT:   %Main.import_ref.1e1 = import_ref Main//lib, loc7_30, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.1: type = import_ref Main//lib, loc7_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.ef5: type = import_ref Main//lib, loc7_18, loaded [concrete = constants.%NonInstance.type]
-// CHECK:STDOUT:   %Main.import_ref.97f: <witness> = import_ref Main//lib, loc15_27, loaded [concrete = constants.%Instance.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.394: <witness> = import_ref Main//lib, loc15_27, loaded [concrete = constants.%Instance.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.2: type = import_ref Main//lib, loc15_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.b49: type = import_ref Main//lib, loc15_18, loaded [concrete = constants.%Instance.type]
-// CHECK:STDOUT:   %Main.import_ref.373: %struct_type.i.as.Instance.impl.G.type = import_ref Main//lib, loc16_22, loaded [concrete = constants.%struct_type.i.as.Instance.impl.G]
-// CHECK:STDOUT:   %Instance.impl_witness_table = impl_witness_table (%Main.import_ref.373), @struct_type.i.as.Instance.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.e38: %struct_type.i.as.Instance.impl.G.type = import_ref Main//lib, loc16_22, loaded [concrete = constants.%struct_type.i.as.Instance.impl.G]
+// CHECK:STDOUT:   %Instance.impl_witness_table = impl_witness_table (%Main.import_ref.e38), @struct_type.i.as.Instance.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -669,26 +669,26 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Instance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.dcd
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d81
 // CHECK:STDOUT:   .G = imports.%Main.import_ref.124
 // CHECK:STDOUT:   witness = (imports.%Main.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.c55
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.200
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.49c
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.NonInstance.impl: imports.%Main.import_ref.c9a3b6.1 as imports.%Main.import_ref.ef5 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.eb8
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.1e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.Instance.impl: imports.%Main.import_ref.c9a3b6.2 as imports.%Main.import_ref.b49 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.97f
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.394
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @InstanceCallImport(%n.param: %struct_type.i) {
@@ -696,16 +696,16 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %n.ref: %struct_type.i = name_ref n, %n
 // CHECK:STDOUT:   %Instance.ref: type = name_ref Instance, imports.%Main.Instance [concrete = constants.%Instance.type]
 // CHECK:STDOUT:   %G.ref: %Instance.assoc_type = name_ref G, imports.%Main.import_ref.124 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.efa = impl_witness_access constants.%Instance.impl_witness, element0 [concrete = constants.%struct_type.i.as.Instance.impl.G]
+// CHECK:STDOUT:   %impl.elem0: %.170 = impl_witness_access constants.%Instance.impl_witness, element0 [concrete = constants.%struct_type.i.as.Instance.impl.G]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %n.ref, %impl.elem0
 // CHECK:STDOUT:   %struct_type.i.as.Instance.impl.G.call: init %empty_tuple.type = call %bound_method(%n.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Instance.G(imports.%Main.import_ref.0d8: %Instance.type) [from "lib.carbon"] {
-// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf8)]
+// CHECK:STDOUT: generic fn @Instance.G(imports.%Main.import_ref.91e: %Instance.type) [from "lib.carbon"] {
+// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.395)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4e4)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.6b2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -718,7 +718,7 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %Instance.ref: type = name_ref Instance, imports.%Main.Instance [concrete = constants.%Instance.type]
 // CHECK:STDOUT:   %G.ref: %Instance.assoc_type = name_ref G, imports.%Main.import_ref.124 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %.loc10_4.1: ref %struct_type.i = deref %p.ref
-// CHECK:STDOUT:   %impl.elem0: %.efa = impl_witness_access constants.%Instance.impl_witness, element0 [concrete = constants.%struct_type.i.as.Instance.impl.G]
+// CHECK:STDOUT:   %impl.elem0: %.170 = impl_witness_access constants.%Instance.impl_witness, element0 [concrete = constants.%struct_type.i.as.Instance.impl.G]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc10_4.1, %impl.elem0
 // CHECK:STDOUT:   %.loc10_4.2: ref %empty_tuple.type = struct_access %.loc10_4.1, element0
 // CHECK:STDOUT:   %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
@@ -729,10 +729,10 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Instance.G(constants.%Self.cf8) {
-// CHECK:STDOUT:   %Self => constants.%Self.cf8
+// CHECK:STDOUT: specific @Instance.G(constants.%Self.395) {
+// CHECK:STDOUT:   %Self => constants.%Self.395
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4e4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6b2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_import_instance.carbon
@@ -743,12 +743,12 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   %InstanceCallImportFail: %InstanceCallImportFail.type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct_type.i: type = struct_type {.i: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %Instance.type: type = facet_type <@Instance> [concrete]
-// CHECK:STDOUT:   %Self.cf8: %Instance.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.395: %Instance.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Instance.assoc_type: type = assoc_entity_type @Instance [concrete]
 // CHECK:STDOUT:   %assoc0: %Instance.assoc_type = assoc_entity element0, imports.%Main.import_ref.b4d [concrete]
 // CHECK:STDOUT:   %Instance.G.type: type = fn_type @Instance.G [concrete]
 // CHECK:STDOUT:   %Instance.G: %Instance.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.cf8 [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.395 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %NonInstance.type: type = facet_type <@NonInstance> [concrete]
 // CHECK:STDOUT: }
@@ -760,18 +760,18 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.dcd = import_ref Main//lib, inst45 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d81 = import_ref Main//lib, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.124: %Instance.assoc_type = import_ref Main//lib, loc12_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.G = import_ref Main//lib, G, unloaded
 // CHECK:STDOUT:   %Main.import_ref.b4d: %Instance.G.type = import_ref Main//lib, loc12_21, loaded [concrete = constants.%Instance.G]
-// CHECK:STDOUT:   %Main.import_ref.0d8: %Instance.type = import_ref Main//lib, inst45 [no loc], loaded [symbolic = constants.%Self.cf8]
-// CHECK:STDOUT:   %Main.import_ref.c55 = import_ref Main//lib, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.91e: %Instance.type = import_ref Main//lib, inst45 [no loc], loaded [symbolic = constants.%Self.395]
+// CHECK:STDOUT:   %Main.import_ref.200 = import_ref Main//lib, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.49c = import_ref Main//lib, loc4_9, unloaded
 // CHECK:STDOUT:   %Main.F = import_ref Main//lib, F, unloaded
-// CHECK:STDOUT:   %Main.import_ref.eb8 = import_ref Main//lib, loc7_30, unloaded
+// CHECK:STDOUT:   %Main.import_ref.1e1 = import_ref Main//lib, loc7_30, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.1: type = import_ref Main//lib, loc7_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.ef5: type = import_ref Main//lib, loc7_18, loaded [concrete = constants.%NonInstance.type]
-// CHECK:STDOUT:   %Main.import_ref.a9f = import_ref Main//lib, loc15_27, unloaded
+// CHECK:STDOUT:   %Main.import_ref.0be = import_ref Main//lib, loc15_27, unloaded
 // CHECK:STDOUT:   %Main.import_ref.c9a3b6.2: type = import_ref Main//lib, loc15_13, loaded [concrete = constants.%struct_type.i]
 // CHECK:STDOUT:   %Main.import_ref.b49: type = import_ref Main//lib, loc15_18, loaded [concrete = constants.%Instance.type]
 // CHECK:STDOUT: }
@@ -790,26 +790,26 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Instance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.dcd
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d81
 // CHECK:STDOUT:   .G = imports.%Main.import_ref.124
 // CHECK:STDOUT:   witness = (imports.%Main.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonInstance [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.c55
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.200
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.49c
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.NonInstance.impl: imports.%Main.import_ref.c9a3b6.1 as imports.%Main.import_ref.ef5 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.eb8
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.1e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @struct_type.i.as.Instance.impl: imports.%Main.import_ref.c9a3b6.2 as imports.%Main.import_ref.b49 [from "lib.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.a9f
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.0be
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @InstanceCallImportFail() {
@@ -822,16 +822,16 @@ fn InstanceCallImportFail() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Instance.G(imports.%Main.import_ref.0d8: %Instance.type) [from "lib.carbon"] {
-// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf8)]
+// CHECK:STDOUT: generic fn @Instance.G(imports.%Main.import_ref.91e: %Instance.type) [from "lib.carbon"] {
+// CHECK:STDOUT:   %Self: %Instance.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.395)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Instance.G(constants.%Self.cf8) {
-// CHECK:STDOUT:   %Self => constants.%Self.cf8
+// CHECK:STDOUT: specific @Instance.G(constants.%Self.395) {
+// CHECK:STDOUT:   %Self => constants.%Self.395
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/import_extend_impl.carbon b/toolchain/check/testdata/impl/import_extend_impl.carbon
index 399e9fcf9a2d..d8873eec3bde 100644
--- a/toolchain/check/testdata/impl/import_extend_impl.carbon
+++ b/toolchain/check/testdata/impl/import_extend_impl.carbon
@@ -130,7 +130,7 @@ fn G(c: C) {
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.038: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.f56: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -141,16 +141,16 @@ fn G(c: C) {
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//extend_impl_library, loc12_1, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.2c4 = import_ref Main//extend_impl_library, inst28 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.3019d1.1: type = import_ref Main//extend_impl_library, loc9_18, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//extend_impl_library, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//extend_impl_library, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c44: %I.assoc_type = import_ref Main//extend_impl_library, loc5_9, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.F = import_ref Main//extend_impl_library, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.e03: %I.F.type = import_ref Main//extend_impl_library, loc5_9, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %Main.import_ref.9d1: <witness> = import_ref Main//extend_impl_library, loc9_20, loaded [concrete = constants.%I.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.cde: <witness> = import_ref Main//extend_impl_library, loc9_20, loaded [concrete = constants.%I.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.0ed: type = import_ref Main//extend_impl_library, loc9_15, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %Main.import_ref.3019d1.2: type = import_ref Main//extend_impl_library, loc9_18, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %Main.import_ref.f6d: %C.as.I.impl.F.type = import_ref Main//extend_impl_library, loc10_12, loaded [concrete = constants.%C.as.I.impl.F]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.f6d), @C.as.I.impl [concrete]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//extend_impl_library, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.67e: %C.as.I.impl.F.type = import_ref Main//extend_impl_library, loc10_12, loaded [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.67e), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//extend_impl_library, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -172,14 +172,14 @@ fn G(c: C) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "extend_impl_library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.c44
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.I.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.3019d1.2 [from "extend_impl_library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.9d1
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.cde
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C [from "extend_impl_library.carbon"] {
@@ -195,16 +195,16 @@ fn G(c: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %C.ref.loc7: type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:   %F.ref.loc7: %I.assoc_type = name_ref F, imports.%Main.import_ref.c44 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0.loc7: %.038 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc7: %.f56 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
 // CHECK:STDOUT:   %C.as.I.impl.F.call.loc7: init %empty_tuple.type = call %impl.elem0.loc7()
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %F.ref.loc8: %I.assoc_type = name_ref F, imports.%Main.import_ref.c44 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0.loc8: %.038 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.f56 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
 // CHECK:STDOUT:   %C.as.I.impl.F.call.loc8: init %empty_tuple.type = call %impl.elem0.loc8()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5dd: %I.type) [from "extend_impl_library.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.72c: %I.type) [from "extend_impl_library.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/import_generic.carbon b/toolchain/check/testdata/impl/import_generic.carbon
index db92594deb18..4bfba0cf2c37 100644
--- a/toolchain/check/testdata/impl/import_generic.carbon
+++ b/toolchain/check/testdata/impl/import_generic.carbon
@@ -112,15 +112,15 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.1a9: <witness> = impl_witness file.%I.impl_witness_table.loc8, @C.as.I.impl.084(%T) [symbolic]
-// CHECK:STDOUT:   %require_complete.cfe: <witness> = require_complete_type %I.type.325 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.89e: <witness> = impl_witness file.%I.impl_witness_table.loc8, @C.as.I.impl.fab(%T) [symbolic]
+// CHECK:STDOUT:   %require_complete.3e6: <witness> = require_complete_type %I.type.328 [symbolic]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T [symbolic]
-// CHECK:STDOUT:   %I.type.0e2: type = facet_type <@I, @I(%ptr)> [symbolic]
-// CHECK:STDOUT:   %Self.fb4: %I.type.0e2 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %require_complete.0e6: <witness> = require_complete_type %I.type.0e2 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.6ad: <witness> = impl_witness file.%I.impl_witness_table.loc12, @C.as.I.impl.cd2(%T) [symbolic]
+// CHECK:STDOUT:   %I.type.d0b: type = facet_type <@I, @I(%ptr)> [symbolic]
+// CHECK:STDOUT:   %Self.b64: %I.type.d0b = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %require_complete.eb5: <witness> = require_complete_type %I.type.d0b [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.408: <witness> = impl_witness file.%I.impl_witness_table.loc12, @C.as.I.impl.1d4(%T) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -135,52 +135,52 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc5_13.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc5_13.1 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.084 [concrete] {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.fab [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref.loc8: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref.loc8: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref.loc8: type = name_ref T, %T.loc8_14.1 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:     %I.type.loc8_32.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.325)]
+// CHECK:STDOUT:     %I.type.loc8_32.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.328)]
 // CHECK:STDOUT:     %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc8 = impl_witness_table (), @C.as.I.impl.084 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc8: <witness> = impl_witness %I.impl_witness_table.loc8, @C.as.I.impl.084(constants.%T) [symbolic = @C.as.I.impl.084.%I.impl_witness (constants.%I.impl_witness.1a9)]
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.084 [concrete] {
+// CHECK:STDOUT:   %I.impl_witness_table.loc8 = impl_witness_table (), @C.as.I.impl.fab [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc8: <witness> = impl_witness %I.impl_witness_table.loc8, @C.as.I.impl.fab(constants.%T) [symbolic = @C.as.I.impl.fab.%I.impl_witness (constants.%I.impl_witness.89e)]
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.fab [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref.loc9: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref.loc9: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref.loc9: type = name_ref T, %T.loc9 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:     %I.type.loc9: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.325)]
+// CHECK:STDOUT:     %I.type.loc9: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.328)]
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc9: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.cd2 [concrete] {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1d4 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc12_14.1 [symbolic = %T.loc12_14.2 (constants.%T)]
 // CHECK:STDOUT:     %ptr.loc12_32.1: type = ptr_type %T.ref [symbolic = %ptr.loc12_32.2 (constants.%ptr)]
-// CHECK:STDOUT:     %I.type.loc12_33.1: type = facet_type <@I, @I(constants.%ptr)> [symbolic = %I.type.loc12_33.2 (constants.%I.type.0e2)]
+// CHECK:STDOUT:     %I.type.loc12_33.1: type = facet_type <@I, @I(constants.%ptr)> [symbolic = %I.type.loc12_33.2 (constants.%I.type.d0b)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc12_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc12 = impl_witness_table (), @C.as.I.impl.cd2 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc12: <witness> = impl_witness %I.impl_witness_table.loc12, @C.as.I.impl.cd2(constants.%T) [symbolic = @C.as.I.impl.cd2.%I.impl_witness (constants.%I.impl_witness.6ad)]
+// CHECK:STDOUT:   %I.impl_witness_table.loc12 = impl_witness_table (), @C.as.I.impl.1d4 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc12: <witness> = impl_witness %I.impl_witness_table.loc12, @C.as.I.impl.1d4(constants.%T) [symbolic = @C.as.I.impl.1d4.%I.impl_witness (constants.%I.impl_witness.408)]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic interface @I(%T.loc5_13.2: type) {
 // CHECK:STDOUT:   %T.loc5_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc5_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc5_13.1)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc5_13.1)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -188,13 +188,13 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.084(%T.loc8_14.1: type) {
+// CHECK:STDOUT: generic impl @C.as.I.impl.fab(%T.loc8_14.1: type) {
 // CHECK:STDOUT:   %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:   %I.type.loc8_32.2: type = facet_type <@I, @I(%T.loc8_14.2)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.325)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table.loc8, @C.as.I.impl.084(%T.loc8_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness.1a9)]
+// CHECK:STDOUT:   %I.type.loc8_32.2: type = facet_type <@I, @I(%T.loc8_14.2)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.328)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table.loc8, @C.as.I.impl.fab(%T.loc8_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness.89e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc8_32.2 [symbolic = %require_complete (constants.%require_complete.cfe)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc8_32.2 [symbolic = %require_complete (constants.%require_complete.3e6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %C.ref.loc8 as %I.type.loc8_32.1 {
 // CHECK:STDOUT:   !members:
@@ -202,12 +202,12 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.cd2(%T.loc12_14.1: type) {
+// CHECK:STDOUT: generic impl @C.as.I.impl.1d4(%T.loc12_14.1: type) {
 // CHECK:STDOUT:   %T.loc12_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T)]
 // CHECK:STDOUT:   %ptr.loc12_32.2: type = ptr_type %T.loc12_14.2 [symbolic = %ptr.loc12_32.2 (constants.%ptr)]
-// CHECK:STDOUT:   %I.type.loc12_33.2: type = facet_type <@I, @I(%ptr.loc12_32.2)> [symbolic = %I.type.loc12_33.2 (constants.%I.type.0e2)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc12_33.2 [symbolic = %require_complete (constants.%require_complete.0e6)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table.loc12, @C.as.I.impl.cd2(%T.loc12_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness.6ad)]
+// CHECK:STDOUT:   %I.type.loc12_33.2: type = facet_type <@I, @I(%ptr.loc12_32.2)> [symbolic = %I.type.loc12_33.2 (constants.%I.type.d0b)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc12_33.2 [symbolic = %require_complete (constants.%require_complete.eb5)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table.loc12, @C.as.I.impl.1d4(%T.loc12_14.2) [symbolic = %I.impl_witness (constants.%I.impl_witness.408)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -229,30 +229,30 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self.2 => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self.2 => constants.%Self.0d8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.084(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.fab(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.2 => constants.%T
-// CHECK:STDOUT:   %I.type.loc8_32.2 => constants.%I.type.325
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.1a9
+// CHECK:STDOUT:   %I.type.loc8_32.2 => constants.%I.type.328
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.89e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%ptr) {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%ptr
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.0e2
-// CHECK:STDOUT:   %Self.2 => constants.%Self.fb4
+// CHECK:STDOUT:   %I.type => constants.%I.type.d0b
+// CHECK:STDOUT:   %Self.2 => constants.%Self.b64
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.cd2(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.1d4(constants.%T) {
 // CHECK:STDOUT:   %T.loc12_14.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc12_32.2 => constants.%ptr
-// CHECK:STDOUT:   %I.type.loc12_33.2 => constants.%I.type.0e2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.0e6
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.6ad
+// CHECK:STDOUT:   %I.type.loc12_33.2 => constants.%I.type.d0b
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.eb5
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.408
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_import_generic.impl.carbon
@@ -261,19 +261,19 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %I.impl_witness.1a9: <witness> = impl_witness imports.%I.impl_witness_table.028, @C.as.I.impl.08450a.1(%T) [symbolic]
-// CHECK:STDOUT:   %require_complete.cfe: <witness> = require_complete_type %I.type.325 [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.89e: <witness> = impl_witness imports.%I.impl_witness_table.a74, @C.as.I.impl.fab789.1(%T) [symbolic]
+// CHECK:STDOUT:   %require_complete.3e6: <witness> = require_complete_type %I.type.328 [symbolic]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T [symbolic]
-// CHECK:STDOUT:   %I.type.0e2: type = facet_type <@I, @I(%ptr)> [symbolic]
-// CHECK:STDOUT:   %require_complete.0e6: <witness> = require_complete_type %I.type.0e2 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.6ad: <witness> = impl_witness imports.%I.impl_witness_table.e14, @C.as.I.impl.cd2fdc.1(%T) [symbolic]
-// CHECK:STDOUT:   %Self.fb4: %I.type.0e2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.d0b: type = facet_type <@I, @I(%ptr)> [symbolic]
+// CHECK:STDOUT:   %require_complete.eb5: <witness> = require_complete_type %I.type.d0b [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.408: <witness> = impl_witness imports.%I.impl_witness_table.fd1, @C.as.I.impl.1d48fe.1(%T) [symbolic]
+// CHECK:STDOUT:   %Self.b64: %I.type.d0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -281,19 +281,19 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %Main.C: type = import_ref Main//import_generic, C, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %Main.I: %I.type.dac = import_ref Main//import_generic, I, loaded [concrete = constants.%I.generic]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//import_generic, loc5_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.884 = import_ref Main//import_generic, inst32 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.cc6 = import_ref Main//import_generic, loc8_33, unloaded
+// CHECK:STDOUT:   %Main.import_ref.4e2 = import_ref Main//import_generic, inst32 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.321 = import_ref Main//import_generic, loc8_33, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//import_generic, loc4_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.2c4 = import_ref Main//import_generic, inst16 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//import_generic, loc8_14, loaded [symbolic = @C.as.I.impl.08450a.1.%T (constants.%T)]
+// CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//import_generic, loc8_14, loaded [symbolic = @C.as.I.impl.fab789.1.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.29aca8.1: type = import_ref Main//import_generic, loc8_24, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.4be: type = import_ref Main//import_generic, loc8_32, loaded [symbolic = @C.as.I.impl.08450a.1.%I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %I.impl_witness_table.028 = impl_witness_table (), @C.as.I.impl.08450a.1 [concrete]
-// CHECK:STDOUT:   %Main.import_ref.fc2 = import_ref Main//import_generic, loc12_35, unloaded
-// CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//import_generic, loc12_14, loaded [symbolic = @C.as.I.impl.cd2fdc.1.%T (constants.%T)]
+// CHECK:STDOUT:   %Main.import_ref.c5c: type = import_ref Main//import_generic, loc8_32, loaded [symbolic = @C.as.I.impl.fab789.1.%I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %I.impl_witness_table.a74 = impl_witness_table (), @C.as.I.impl.fab789.1 [concrete]
+// CHECK:STDOUT:   %Main.import_ref.b64 = import_ref Main//import_generic, loc12_35, unloaded
+// CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//import_generic, loc12_14, loaded [symbolic = @C.as.I.impl.1d48fe.1.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.29aca8.2: type = import_ref Main//import_generic, loc12_24, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.3e2: type = import_ref Main//import_generic, loc12_33, loaded [symbolic = @C.as.I.impl.cd2fdc.1.%I.type (constants.%I.type.0e2)]
-// CHECK:STDOUT:   %I.impl_witness_table.e14 = impl_witness_table (), @C.as.I.impl.cd2fdc.1 [concrete]
+// CHECK:STDOUT:   %Main.import_ref.12f: type = import_ref Main//import_generic, loc12_33, loaded [symbolic = @C.as.I.impl.1d48fe.1.%I.type (constants.%I.type.d0b)]
+// CHECK:STDOUT:   %I.impl_witness_table.fd1 = impl_witness_table (), @C.as.I.impl.1d48fe.1 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -303,45 +303,45 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import.loc2_30.1 = import <none>
 // CHECK:STDOUT:   %default.import.loc2_30.2 = import <none>
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.08450a.2 [concrete] {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.fab789.2 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc8_14.1 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:     %I.type.loc8_32.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.325)]
+// CHECK:STDOUT:     %I.type.loc8_32.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.328)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.08450a.3 [concrete] {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.fab789.3 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc14_14.1 [symbolic = %T.loc14_14.2 (constants.%T)]
-// CHECK:STDOUT:     %I.type.loc14_32.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc14_32.2 (constants.%I.type.325)]
+// CHECK:STDOUT:     %I.type.loc14_32.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc14_32.2 (constants.%I.type.328)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc14_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.cd2fdc.2 [concrete] {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1d48fe.2 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc20_14.1 [symbolic = %T.loc20_14.2 (constants.%T)]
 // CHECK:STDOUT:     %ptr.loc20_32.1: type = ptr_type %T.ref [symbolic = %ptr.loc20_32.2 (constants.%ptr)]
-// CHECK:STDOUT:     %I.type.loc20_33.1: type = facet_type <@I, @I(constants.%ptr)> [symbolic = %I.type.loc20_33.2 (constants.%I.type.0e2)]
+// CHECK:STDOUT:     %I.type.loc20_33.1: type = facet_type <@I, @I(constants.%ptr)> [symbolic = %I.type.loc20_33.2 (constants.%I.type.d0b)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc20_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc20_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.cd2fdc.3 [concrete] {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1d48fe.3 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc26_14.1 [symbolic = %T.loc26_14.2 (constants.%T)]
 // CHECK:STDOUT:     %ptr.loc26_32.1: type = ptr_type %T.ref [symbolic = %ptr.loc26_32.2 (constants.%ptr)]
-// CHECK:STDOUT:     %I.type.loc26_33.1: type = facet_type <@I, @I(constants.%ptr)> [symbolic = %I.type.loc26_33.2 (constants.%I.type.0e2)]
+// CHECK:STDOUT:     %I.type.loc26_33.1: type = facet_type <@I, @I(constants.%ptr)> [symbolic = %I.type.loc26_33.2 (constants.%I.type.d0b)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc26_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
@@ -351,55 +351,55 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.884
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.4e2
 // CHECK:STDOUT:     witness = ()
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.08450a.1(imports.%Main.import_ref.5ab3ec.2: type) [from "import_generic.carbon"] {
+// CHECK:STDOUT: generic impl @C.as.I.impl.fab789.1(imports.%Main.import_ref.5ab3ec.2: type) [from "import_generic.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table.028, @C.as.I.impl.08450a.1(%T) [symbolic = %I.impl_witness (constants.%I.impl_witness.1a9)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table.a74, @C.as.I.impl.fab789.1(%T) [symbolic = %I.impl_witness (constants.%I.impl_witness.89e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type [symbolic = %require_complete (constants.%require_complete.cfe)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type [symbolic = %require_complete (constants.%require_complete.3e6)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.29aca8.1 as imports.%Main.import_ref.4be {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.29aca8.1 as imports.%Main.import_ref.c5c {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.cc6
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.321
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.cd2fdc.1(imports.%Main.import_ref.5ab3ec.3: type) [from "import_generic.carbon"] {
+// CHECK:STDOUT: generic impl @C.as.I.impl.1d48fe.1(imports.%Main.import_ref.5ab3ec.3: type) [from "import_generic.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T [symbolic = %ptr (constants.%ptr)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%ptr)> [symbolic = %I.type (constants.%I.type.0e2)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type [symbolic = %require_complete (constants.%require_complete.0e6)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table.e14, @C.as.I.impl.cd2fdc.1(%T) [symbolic = %I.impl_witness (constants.%I.impl_witness.6ad)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%ptr)> [symbolic = %I.type (constants.%I.type.d0b)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type [symbolic = %require_complete (constants.%require_complete.eb5)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table.fd1, @C.as.I.impl.1d48fe.1(%T) [symbolic = %I.impl_witness (constants.%I.impl_witness.408)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.29aca8.2 as imports.%Main.import_ref.3e2 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.29aca8.2 as imports.%Main.import_ref.12f {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.fc2
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.b64
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.08450a.2(%T.loc8_14.1: type) {
+// CHECK:STDOUT: generic impl @C.as.I.impl.fab789.2(%T.loc8_14.1: type) {
 // CHECK:STDOUT:   %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:   %I.type.loc8_32.2: type = facet_type <@I, @I(%T.loc8_14.2)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.325)]
+// CHECK:STDOUT:   %I.type.loc8_32.2: type = facet_type <@I, @I(%T.loc8_14.2)> [symbolic = %I.type.loc8_32.2 (constants.%I.type.328)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %C.ref as %I.type.loc8_32.1;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.08450a.3(%T.loc14_14.1: type) {
+// CHECK:STDOUT: generic impl @C.as.I.impl.fab789.3(%T.loc14_14.1: type) {
 // CHECK:STDOUT:   %T.loc14_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T)]
-// CHECK:STDOUT:   %I.type.loc14_32.2: type = facet_type <@I, @I(%T.loc14_14.2)> [symbolic = %I.type.loc14_32.2 (constants.%I.type.325)]
+// CHECK:STDOUT:   %I.type.loc14_32.2: type = facet_type <@I, @I(%T.loc14_14.2)> [symbolic = %I.type.loc14_32.2 (constants.%I.type.328)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -409,18 +409,18 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.cd2fdc.2(%T.loc20_14.1: type) {
+// CHECK:STDOUT: generic impl @C.as.I.impl.1d48fe.2(%T.loc20_14.1: type) {
 // CHECK:STDOUT:   %T.loc20_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc20_14.2 (constants.%T)]
 // CHECK:STDOUT:   %ptr.loc20_32.2: type = ptr_type %T.loc20_14.2 [symbolic = %ptr.loc20_32.2 (constants.%ptr)]
-// CHECK:STDOUT:   %I.type.loc20_33.2: type = facet_type <@I, @I(%ptr.loc20_32.2)> [symbolic = %I.type.loc20_33.2 (constants.%I.type.0e2)]
+// CHECK:STDOUT:   %I.type.loc20_33.2: type = facet_type <@I, @I(%ptr.loc20_32.2)> [symbolic = %I.type.loc20_33.2 (constants.%I.type.d0b)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %C.ref as %I.type.loc20_33.1;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @C.as.I.impl.cd2fdc.3(%T.loc26_14.1: type) {
+// CHECK:STDOUT: generic impl @C.as.I.impl.1d48fe.3(%T.loc26_14.1: type) {
 // CHECK:STDOUT:   %T.loc26_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T)]
 // CHECK:STDOUT:   %ptr.loc26_32.2: type = ptr_type %T.loc26_14.2 [symbolic = %ptr.loc26_32.2 (constants.%ptr)]
-// CHECK:STDOUT:   %I.type.loc26_33.2: type = facet_type <@I, @I(%ptr.loc26_32.2)> [symbolic = %I.type.loc26_33.2 (constants.%I.type.0e2)]
+// CHECK:STDOUT:   %I.type.loc26_33.2: type = facet_type <@I, @I(%ptr.loc26_32.2)> [symbolic = %I.type.loc26_33.2 (constants.%I.type.d0b)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -441,52 +441,52 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self => constants.%Self.0d8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.08450a.1(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.fab789.1(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.1a9
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.89e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%ptr) {
 // CHECK:STDOUT:   %T => constants.%ptr
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.0e2
-// CHECK:STDOUT:   %Self => constants.%Self.fb4
+// CHECK:STDOUT:   %I.type => constants.%I.type.d0b
+// CHECK:STDOUT:   %Self => constants.%Self.b64
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.cd2fdc.1(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.1d48fe.1(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %ptr => constants.%ptr
-// CHECK:STDOUT:   %I.type => constants.%I.type.0e2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.0e6
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.6ad
+// CHECK:STDOUT:   %I.type => constants.%I.type.d0b
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.eb5
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.408
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.08450a.2(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.fab789.2(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.2 => constants.%T
-// CHECK:STDOUT:   %I.type.loc8_32.2 => constants.%I.type.325
+// CHECK:STDOUT:   %I.type.loc8_32.2 => constants.%I.type.328
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.08450a.3(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.fab789.3(constants.%T) {
 // CHECK:STDOUT:   %T.loc14_14.2 => constants.%T
-// CHECK:STDOUT:   %I.type.loc14_32.2 => constants.%I.type.325
+// CHECK:STDOUT:   %I.type.loc14_32.2 => constants.%I.type.328
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.cd2fdc.2(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.1d48fe.2(constants.%T) {
 // CHECK:STDOUT:   %T.loc20_14.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc20_32.2 => constants.%ptr
-// CHECK:STDOUT:   %I.type.loc20_33.2 => constants.%I.type.0e2
+// CHECK:STDOUT:   %I.type.loc20_33.2 => constants.%I.type.d0b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.I.impl.cd2fdc.3(constants.%T) {
+// CHECK:STDOUT: specific @C.as.I.impl.1d48fe.3(constants.%T) {
 // CHECK:STDOUT:   %T.loc26_14.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc26_32.2 => constants.%ptr
-// CHECK:STDOUT:   %I.type.loc26_33.2 => constants.%I.type.0e2
+// CHECK:STDOUT:   %I.type.loc26_33.2 => constants.%I.type.d0b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_import_generic_decl.carbon
@@ -500,12 +500,12 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %J.type.2b8: type = generic_interface_type @J [concrete]
 // CHECK:STDOUT:   %J.generic: %J.type.2b8 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.type.b72: type = facet_type <@J, @J(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %J.type.b72 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %J.impl_witness.809: <witness> = impl_witness file.%J.impl_witness_table.loc11, @D.as.J.impl.199(%T) [symbolic]
+// CHECK:STDOUT:   %J.type.f92: type = facet_type <@J, @J(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %J.type.f92 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %J.impl_witness.0e3: <witness> = impl_witness file.%J.impl_witness_table.loc11, @D.as.J.impl.d35(%T) [symbolic]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T [symbolic]
-// CHECK:STDOUT:   %J.type.628: type = facet_type <@J, @J(%ptr)> [symbolic]
-// CHECK:STDOUT:   %J.impl_witness.5a8: <witness> = impl_witness file.%J.impl_witness_table.loc17, @D.as.J.impl.dfd(%T) [symbolic]
+// CHECK:STDOUT:   %J.type.4b2: type = facet_type <@J, @J(%ptr)> [symbolic]
+// CHECK:STDOUT:   %J.impl_witness.266: <witness> = impl_witness file.%J.impl_witness_table.loc17, @D.as.J.impl.af8(%T) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -520,42 +520,42 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc5_13.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc5_13.1 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @D.as.J.impl.199 [concrete] {
+// CHECK:STDOUT:   impl_decl @D.as.J.impl.d35 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: %J.type.2b8 = name_ref J, file.%J.decl [concrete = constants.%J.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc11_14.1 [symbolic = %T.loc11_14.2 (constants.%T)]
-// CHECK:STDOUT:     %J.type.loc11_32.1: type = facet_type <@J, @J(constants.%T)> [symbolic = %J.type.loc11_32.2 (constants.%J.type.b72)]
+// CHECK:STDOUT:     %J.type.loc11_32.1: type = facet_type <@J, @J(constants.%T)> [symbolic = %J.type.loc11_32.2 (constants.%J.type.f92)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc11_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %J.impl_witness_table.loc11 = impl_witness_table (), @D.as.J.impl.199 [concrete]
-// CHECK:STDOUT:   %J.impl_witness.loc11: <witness> = impl_witness %J.impl_witness_table.loc11, @D.as.J.impl.199(constants.%T) [symbolic = @D.as.J.impl.199.%J.impl_witness (constants.%J.impl_witness.809)]
-// CHECK:STDOUT:   impl_decl @D.as.J.impl.dfd [concrete] {
+// CHECK:STDOUT:   %J.impl_witness_table.loc11 = impl_witness_table (), @D.as.J.impl.d35 [concrete]
+// CHECK:STDOUT:   %J.impl_witness.loc11: <witness> = impl_witness %J.impl_witness_table.loc11, @D.as.J.impl.d35(constants.%T) [symbolic = @D.as.J.impl.d35.%J.impl_witness (constants.%J.impl_witness.0e3)]
+// CHECK:STDOUT:   impl_decl @D.as.J.impl.af8 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: %J.type.2b8 = name_ref J, file.%J.decl [concrete = constants.%J.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc17_14.1 [symbolic = %T.loc17_14.2 (constants.%T)]
 // CHECK:STDOUT:     %ptr.loc17_32.1: type = ptr_type %T.ref [symbolic = %ptr.loc17_32.2 (constants.%ptr)]
-// CHECK:STDOUT:     %J.type.loc17_33.1: type = facet_type <@J, @J(constants.%ptr)> [symbolic = %J.type.loc17_33.2 (constants.%J.type.628)]
+// CHECK:STDOUT:     %J.type.loc17_33.1: type = facet_type <@J, @J(constants.%ptr)> [symbolic = %J.type.loc17_33.2 (constants.%J.type.4b2)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc17_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc17_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %J.impl_witness_table.loc17 = impl_witness_table (), @D.as.J.impl.dfd [concrete]
-// CHECK:STDOUT:   %J.impl_witness.loc17: <witness> = impl_witness %J.impl_witness_table.loc17, @D.as.J.impl.dfd(constants.%T) [symbolic = @D.as.J.impl.dfd.%J.impl_witness (constants.%J.impl_witness.5a8)]
+// CHECK:STDOUT:   %J.impl_witness_table.loc17 = impl_witness_table (), @D.as.J.impl.af8 [concrete]
+// CHECK:STDOUT:   %J.impl_witness.loc17: <witness> = impl_witness %J.impl_witness_table.loc17, @D.as.J.impl.af8(constants.%T) [symbolic = @D.as.J.impl.af8.%J.impl_witness (constants.%J.impl_witness.266)]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic interface @J(%T.loc5_13.2: type) {
 // CHECK:STDOUT:   %T.loc5_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc5_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%T.loc5_13.1)> [symbolic = %J.type (constants.%J.type.b72)]
-// CHECK:STDOUT:   %Self.2: @J.%J.type (%J.type.b72) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%T.loc5_13.1)> [symbolic = %J.type (constants.%J.type.f92)]
+// CHECK:STDOUT:   %Self.2: @J.%J.type (%J.type.f92) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @J.%J.type (%J.type.b72) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @J.%J.type (%J.type.f92) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -563,19 +563,19 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.199(%T.loc11_14.1: type) {
+// CHECK:STDOUT: generic impl @D.as.J.impl.d35(%T.loc11_14.1: type) {
 // CHECK:STDOUT:   %T.loc11_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_14.2 (constants.%T)]
-// CHECK:STDOUT:   %J.type.loc11_32.2: type = facet_type <@J, @J(%T.loc11_14.2)> [symbolic = %J.type.loc11_32.2 (constants.%J.type.b72)]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table.loc11, @D.as.J.impl.199(%T.loc11_14.2) [symbolic = %J.impl_witness (constants.%J.impl_witness.809)]
+// CHECK:STDOUT:   %J.type.loc11_32.2: type = facet_type <@J, @J(%T.loc11_14.2)> [symbolic = %J.type.loc11_32.2 (constants.%J.type.f92)]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table.loc11, @D.as.J.impl.d35(%T.loc11_14.2) [symbolic = %J.impl_witness (constants.%J.impl_witness.0e3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %D.ref as %J.type.loc11_32.1;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.dfd(%T.loc17_14.1: type) {
+// CHECK:STDOUT: generic impl @D.as.J.impl.af8(%T.loc17_14.1: type) {
 // CHECK:STDOUT:   %T.loc17_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc17_14.2 (constants.%T)]
 // CHECK:STDOUT:   %ptr.loc17_32.2: type = ptr_type %T.loc17_14.2 [symbolic = %ptr.loc17_32.2 (constants.%ptr)]
-// CHECK:STDOUT:   %J.type.loc17_33.2: type = facet_type <@J, @J(%ptr.loc17_32.2)> [symbolic = %J.type.loc17_33.2 (constants.%J.type.628)]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table.loc17, @D.as.J.impl.dfd(%T.loc17_14.2) [symbolic = %J.impl_witness (constants.%J.impl_witness.5a8)]
+// CHECK:STDOUT:   %J.type.loc17_33.2: type = facet_type <@J, @J(%ptr.loc17_32.2)> [symbolic = %J.type.loc17_33.2 (constants.%J.type.4b2)]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table.loc17, @D.as.J.impl.af8(%T.loc17_14.2) [symbolic = %J.impl_witness (constants.%J.impl_witness.266)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %D.ref as %J.type.loc17_33.1;
 // CHECK:STDOUT: }
@@ -592,21 +592,21 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.199(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.d35(constants.%T) {
 // CHECK:STDOUT:   %T.loc11_14.2 => constants.%T
-// CHECK:STDOUT:   %J.type.loc11_32.2 => constants.%J.type.b72
-// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.809
+// CHECK:STDOUT:   %J.type.loc11_32.2 => constants.%J.type.f92
+// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.0e3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @J(constants.%ptr) {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%ptr
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.dfd(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.af8(constants.%T) {
 // CHECK:STDOUT:   %T.loc17_14.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc17_32.2 => constants.%ptr
-// CHECK:STDOUT:   %J.type.loc17_33.2 => constants.%J.type.628
-// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.5a8
+// CHECK:STDOUT:   %J.type.loc17_33.2 => constants.%J.type.4b2
+// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.266
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_import_generic_decl.impl.carbon
@@ -615,16 +615,16 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %J.type.2b8: type = generic_interface_type @J [concrete]
 // CHECK:STDOUT:   %J.generic: %J.type.2b8 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.type.b72: type = facet_type <@J, @J(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %J.type.b72 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %J.type.f92: type = facet_type <@J, @J(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %J.type.f92 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %J.impl_witness.809: <witness> = impl_witness imports.%J.impl_witness_table.891, @D.as.J.impl.199bba.1(%T) [symbolic]
+// CHECK:STDOUT:   %J.impl_witness.0e3: <witness> = impl_witness imports.%J.impl_witness_table.e21, @D.as.J.impl.d353a8.1(%T) [symbolic]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T [symbolic]
-// CHECK:STDOUT:   %J.type.628: type = facet_type <@J, @J(%ptr)> [symbolic]
-// CHECK:STDOUT:   %J.impl_witness.5a8: <witness> = impl_witness imports.%J.impl_witness_table.487, @D.as.J.impl.dfd2f7.1(%T) [symbolic]
+// CHECK:STDOUT:   %J.type.4b2: type = facet_type <@J, @J(%ptr)> [symbolic]
+// CHECK:STDOUT:   %J.impl_witness.266: <witness> = impl_witness imports.%J.impl_witness_table.862, @D.as.J.impl.af85a0.1(%T) [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -632,17 +632,17 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %Main.D: type = import_ref Main//import_generic_decl, D, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %Main.J: %J.type.2b8 = import_ref Main//import_generic_decl, J, loaded [concrete = constants.%J.generic]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//import_generic_decl, loc5_13, loaded [symbolic = @J.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.ff5 = import_ref Main//import_generic_decl, inst32 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.71c = import_ref Main//import_generic_decl, inst32 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//import_generic_decl, loc4_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.cab = import_ref Main//import_generic_decl, inst16 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//import_generic_decl, loc11_14, loaded [symbolic = @D.as.J.impl.199bba.1.%T (constants.%T)]
+// CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//import_generic_decl, loc11_14, loaded [symbolic = @D.as.J.impl.d353a8.1.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.aa9f8a.1: type = import_ref Main//import_generic_decl, loc11_24, loaded [concrete = constants.%D]
-// CHECK:STDOUT:   %Main.import_ref.ded: type = import_ref Main//import_generic_decl, loc11_32, loaded [symbolic = @D.as.J.impl.199bba.1.%J.type (constants.%J.type.b72)]
-// CHECK:STDOUT:   %J.impl_witness_table.891 = impl_witness_table (), @D.as.J.impl.199bba.1 [concrete]
-// CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//import_generic_decl, loc17_14, loaded [symbolic = @D.as.J.impl.dfd2f7.1.%T (constants.%T)]
+// CHECK:STDOUT:   %Main.import_ref.152: type = import_ref Main//import_generic_decl, loc11_32, loaded [symbolic = @D.as.J.impl.d353a8.1.%J.type (constants.%J.type.f92)]
+// CHECK:STDOUT:   %J.impl_witness_table.e21 = impl_witness_table (), @D.as.J.impl.d353a8.1 [concrete]
+// CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//import_generic_decl, loc17_14, loaded [symbolic = @D.as.J.impl.af85a0.1.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.aa9f8a.2: type = import_ref Main//import_generic_decl, loc17_24, loaded [concrete = constants.%D]
-// CHECK:STDOUT:   %Main.import_ref.0d3: type = import_ref Main//import_generic_decl, loc17_33, loaded [symbolic = @D.as.J.impl.dfd2f7.1.%J.type (constants.%J.type.628)]
-// CHECK:STDOUT:   %J.impl_witness_table.487 = impl_witness_table (), @D.as.J.impl.dfd2f7.1 [concrete]
+// CHECK:STDOUT:   %Main.import_ref.aaa: type = import_ref Main//import_generic_decl, loc17_33, loaded [symbolic = @D.as.J.impl.af85a0.1.%J.type (constants.%J.type.4b2)]
+// CHECK:STDOUT:   %J.impl_witness_table.862 = impl_witness_table (), @D.as.J.impl.af85a0.1 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -652,45 +652,45 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import.loc2_35.1 = import <none>
 // CHECK:STDOUT:   %default.import.loc2_35.2 = import <none>
-// CHECK:STDOUT:   impl_decl @D.as.J.impl.199bba.2 [concrete] {
+// CHECK:STDOUT:   impl_decl @D.as.J.impl.d353a8.2 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, imports.%Main.D [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: %J.type.2b8 = name_ref J, imports.%Main.J [concrete = constants.%J.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc8_14.1 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:     %J.type.loc8_32.1: type = facet_type <@J, @J(constants.%T)> [symbolic = %J.type.loc8_32.2 (constants.%J.type.b72)]
+// CHECK:STDOUT:     %J.type.loc8_32.1: type = facet_type <@J, @J(constants.%T)> [symbolic = %J.type.loc8_32.2 (constants.%J.type.f92)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @D.as.J.impl.199bba.3 [concrete] {
+// CHECK:STDOUT:   impl_decl @D.as.J.impl.d353a8.3 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, imports.%Main.D [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: %J.type.2b8 = name_ref J, imports.%Main.J [concrete = constants.%J.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc14_14.1 [symbolic = %T.loc14_14.2 (constants.%T)]
-// CHECK:STDOUT:     %J.type.loc14_32.1: type = facet_type <@J, @J(constants.%T)> [symbolic = %J.type.loc14_32.2 (constants.%J.type.b72)]
+// CHECK:STDOUT:     %J.type.loc14_32.1: type = facet_type <@J, @J(constants.%T)> [symbolic = %J.type.loc14_32.2 (constants.%J.type.f92)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc14_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @D.as.J.impl.dfd2f7.2 [concrete] {
+// CHECK:STDOUT:   impl_decl @D.as.J.impl.af85a0.2 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, imports.%Main.D [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: %J.type.2b8 = name_ref J, imports.%Main.J [concrete = constants.%J.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc20_14.1 [symbolic = %T.loc20_14.2 (constants.%T)]
 // CHECK:STDOUT:     %ptr.loc20_32.1: type = ptr_type %T.ref [symbolic = %ptr.loc20_32.2 (constants.%ptr)]
-// CHECK:STDOUT:     %J.type.loc20_33.1: type = facet_type <@J, @J(constants.%ptr)> [symbolic = %J.type.loc20_33.2 (constants.%J.type.628)]
+// CHECK:STDOUT:     %J.type.loc20_33.1: type = facet_type <@J, @J(constants.%ptr)> [symbolic = %J.type.loc20_33.2 (constants.%J.type.4b2)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc20_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc20_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @D.as.J.impl.dfd2f7.3 [concrete] {
+// CHECK:STDOUT:   impl_decl @D.as.J.impl.af85a0.3 [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, imports.%Main.D [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: %J.type.2b8 = name_ref J, imports.%Main.J [concrete = constants.%J.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc26_14.1 [symbolic = %T.loc26_14.2 (constants.%T)]
 // CHECK:STDOUT:     %ptr.loc26_32.1: type = ptr_type %T.ref [symbolic = %ptr.loc26_32.2 (constants.%ptr)]
-// CHECK:STDOUT:     %J.type.loc26_33.1: type = facet_type <@J, @J(constants.%ptr)> [symbolic = %J.type.loc26_33.2 (constants.%J.type.628)]
+// CHECK:STDOUT:     %J.type.loc26_33.1: type = facet_type <@J, @J(constants.%ptr)> [symbolic = %J.type.loc26_33.2 (constants.%J.type.4b2)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc26_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
@@ -700,43 +700,43 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%T)> [symbolic = %J.type (constants.%J.type.b72)]
-// CHECK:STDOUT:   %Self: @J.%J.type (%J.type.b72) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%T)> [symbolic = %J.type (constants.%J.type.f92)]
+// CHECK:STDOUT:   %Self: @J.%J.type (%J.type.f92) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.ff5
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.71c
 // CHECK:STDOUT:     witness = ()
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.199bba.1(imports.%Main.import_ref.5ab3ec.2: type) [from "fail_import_generic_decl.carbon"] {
+// CHECK:STDOUT: generic impl @D.as.J.impl.d353a8.1(imports.%Main.import_ref.5ab3ec.2: type) [from "fail_import_generic_decl.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%T)> [symbolic = %J.type (constants.%J.type.b72)]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness imports.%J.impl_witness_table.891, @D.as.J.impl.199bba.1(%T) [symbolic = %J.impl_witness (constants.%J.impl_witness.809)]
+// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%T)> [symbolic = %J.type (constants.%J.type.f92)]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness imports.%J.impl_witness_table.e21, @D.as.J.impl.d353a8.1(%T) [symbolic = %J.impl_witness (constants.%J.impl_witness.0e3)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.aa9f8a.1 as imports.%Main.import_ref.ded;
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.aa9f8a.1 as imports.%Main.import_ref.152;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.dfd2f7.1(imports.%Main.import_ref.5ab3ec.3: type) [from "fail_import_generic_decl.carbon"] {
+// CHECK:STDOUT: generic impl @D.as.J.impl.af85a0.1(imports.%Main.import_ref.5ab3ec.3: type) [from "fail_import_generic_decl.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T [symbolic = %ptr (constants.%ptr)]
-// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%ptr)> [symbolic = %J.type (constants.%J.type.628)]
-// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness imports.%J.impl_witness_table.487, @D.as.J.impl.dfd2f7.1(%T) [symbolic = %J.impl_witness (constants.%J.impl_witness.5a8)]
+// CHECK:STDOUT:   %J.type: type = facet_type <@J, @J(%ptr)> [symbolic = %J.type (constants.%J.type.4b2)]
+// CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness imports.%J.impl_witness_table.862, @D.as.J.impl.af85a0.1(%T) [symbolic = %J.impl_witness (constants.%J.impl_witness.266)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.aa9f8a.2 as imports.%Main.import_ref.0d3;
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.aa9f8a.2 as imports.%Main.import_ref.aaa;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.199bba.2(%T.loc8_14.1: type) {
+// CHECK:STDOUT: generic impl @D.as.J.impl.d353a8.2(%T.loc8_14.1: type) {
 // CHECK:STDOUT:   %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.2 (constants.%T)]
-// CHECK:STDOUT:   %J.type.loc8_32.2: type = facet_type <@J, @J(%T.loc8_14.2)> [symbolic = %J.type.loc8_32.2 (constants.%J.type.b72)]
+// CHECK:STDOUT:   %J.type.loc8_32.2: type = facet_type <@J, @J(%T.loc8_14.2)> [symbolic = %J.type.loc8_32.2 (constants.%J.type.f92)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %D.ref as %J.type.loc8_32.1;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.199bba.3(%T.loc14_14.1: type) {
+// CHECK:STDOUT: generic impl @D.as.J.impl.d353a8.3(%T.loc14_14.1: type) {
 // CHECK:STDOUT:   %T.loc14_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc14_14.2 (constants.%T)]
-// CHECK:STDOUT:   %J.type.loc14_32.2: type = facet_type <@J, @J(%T.loc14_14.2)> [symbolic = %J.type.loc14_32.2 (constants.%J.type.b72)]
+// CHECK:STDOUT:   %J.type.loc14_32.2: type = facet_type <@J, @J(%T.loc14_14.2)> [symbolic = %J.type.loc14_32.2 (constants.%J.type.f92)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -746,18 +746,18 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.dfd2f7.2(%T.loc20_14.1: type) {
+// CHECK:STDOUT: generic impl @D.as.J.impl.af85a0.2(%T.loc20_14.1: type) {
 // CHECK:STDOUT:   %T.loc20_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc20_14.2 (constants.%T)]
 // CHECK:STDOUT:   %ptr.loc20_32.2: type = ptr_type %T.loc20_14.2 [symbolic = %ptr.loc20_32.2 (constants.%ptr)]
-// CHECK:STDOUT:   %J.type.loc20_33.2: type = facet_type <@J, @J(%ptr.loc20_32.2)> [symbolic = %J.type.loc20_33.2 (constants.%J.type.628)]
+// CHECK:STDOUT:   %J.type.loc20_33.2: type = facet_type <@J, @J(%ptr.loc20_32.2)> [symbolic = %J.type.loc20_33.2 (constants.%J.type.4b2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %D.ref as %J.type.loc20_33.1;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @D.as.J.impl.dfd2f7.3(%T.loc26_14.1: type) {
+// CHECK:STDOUT: generic impl @D.as.J.impl.af85a0.3(%T.loc26_14.1: type) {
 // CHECK:STDOUT:   %T.loc26_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc26_14.2 (constants.%T)]
 // CHECK:STDOUT:   %ptr.loc26_32.2: type = ptr_type %T.loc26_14.2 [symbolic = %ptr.loc26_32.2 (constants.%ptr)]
-// CHECK:STDOUT:   %J.type.loc26_33.2: type = facet_type <@J, @J(%ptr.loc26_32.2)> [symbolic = %J.type.loc26_33.2 (constants.%J.type.628)]
+// CHECK:STDOUT:   %J.type.loc26_33.2: type = facet_type <@J, @J(%ptr.loc26_32.2)> [symbolic = %J.type.loc26_33.2 (constants.%J.type.4b2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -778,42 +778,42 @@ impl forall [T:! type] D as J(T*) {}
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.199bba.1(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.d353a8.1(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %J.type => constants.%J.type.b72
-// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.809
+// CHECK:STDOUT:   %J.type => constants.%J.type.f92
+// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.0e3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @J(constants.%ptr) {
 // CHECK:STDOUT:   %T => constants.%ptr
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.dfd2f7.1(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.af85a0.1(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %ptr => constants.%ptr
-// CHECK:STDOUT:   %J.type => constants.%J.type.628
-// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.5a8
+// CHECK:STDOUT:   %J.type => constants.%J.type.4b2
+// CHECK:STDOUT:   %J.impl_witness => constants.%J.impl_witness.266
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.199bba.2(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.d353a8.2(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.2 => constants.%T
-// CHECK:STDOUT:   %J.type.loc8_32.2 => constants.%J.type.b72
+// CHECK:STDOUT:   %J.type.loc8_32.2 => constants.%J.type.f92
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.199bba.3(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.d353a8.3(constants.%T) {
 // CHECK:STDOUT:   %T.loc14_14.2 => constants.%T
-// CHECK:STDOUT:   %J.type.loc14_32.2 => constants.%J.type.b72
+// CHECK:STDOUT:   %J.type.loc14_32.2 => constants.%J.type.f92
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.dfd2f7.2(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.af85a0.2(constants.%T) {
 // CHECK:STDOUT:   %T.loc20_14.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc20_32.2 => constants.%ptr
-// CHECK:STDOUT:   %J.type.loc20_33.2 => constants.%J.type.628
+// CHECK:STDOUT:   %J.type.loc20_33.2 => constants.%J.type.4b2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @D.as.J.impl.dfd2f7.3(constants.%T) {
+// CHECK:STDOUT: specific @D.as.J.impl.af85a0.3(constants.%T) {
 // CHECK:STDOUT:   %T.loc26_14.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc26_32.2 => constants.%ptr
-// CHECK:STDOUT:   %J.type.loc26_33.2 => constants.%J.type.628
+// CHECK:STDOUT:   %J.type.loc26_33.2 => constants.%J.type.4b2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/import_interface_assoc_const.carbon b/toolchain/check/testdata/impl/import_interface_assoc_const.carbon
index e577b8c7463f..3d789327d4c3 100644
--- a/toolchain/check/testdata/impl/import_interface_assoc_const.carbon
+++ b/toolchain/check/testdata/impl/import_interface_assoc_const.carbon
@@ -206,17 +206,17 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.cd1: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %I3.type: type = facet_type <@I3> [concrete]
-// CHECK:STDOUT:   %Self.260: %I3.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.21f: %I3.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I3.assoc_type: type = assoc_entity_type @I3 [concrete]
 // CHECK:STDOUT:   %assoc0.150: %I3.assoc_type = assoc_entity element0, @I3.%T1 [concrete]
 // CHECK:STDOUT:   %assoc1: %I3.assoc_type = assoc_entity element1, @I3.%T2 [concrete]
 // CHECK:STDOUT:   %assoc2: %I3.assoc_type = assoc_entity element2, @I3.%T3 [concrete]
 // CHECK:STDOUT:   %NonType.type: type = facet_type <@NonType> [concrete]
-// CHECK:STDOUT:   %Self.ca7: %NonType.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.6aa: %NonType.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %struct_type.a.225: type = struct_type {.a: %empty_struct_type} [concrete]
 // CHECK:STDOUT:   %NonType.assoc_type: type = assoc_entity_type @NonType [concrete]
@@ -235,7 +235,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0.cd1]
 // CHECK:STDOUT:   }
@@ -247,7 +247,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I3 {
-// CHECK:STDOUT:   %Self: %I3.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.260]
+// CHECK:STDOUT:   %Self: %I3.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.21f]
 // CHECK:STDOUT:   %T1: type = assoc_const_decl @T1 [concrete] {
 // CHECK:STDOUT:     %assoc0: %I3.assoc_type = assoc_entity element0, @I3.%T1 [concrete = constants.%assoc0.150]
 // CHECK:STDOUT:   }
@@ -267,7 +267,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonType {
-// CHECK:STDOUT:   %Self: %NonType.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ca7]
+// CHECK:STDOUT:   %Self: %NonType.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6aa]
 // CHECK:STDOUT:   %Y: %struct_type.a.225 = assoc_const_decl @Y [concrete] {
 // CHECK:STDOUT:     %assoc0: %NonType.assoc_type = assoc_entity element0, @NonType.%Y [concrete = constants.%assoc0.290]
 // CHECK:STDOUT:   }
@@ -298,15 +298,15 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   assoc_const Y:! %struct_type.a.225;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T1(constants.%Self.260) {}
+// CHECK:STDOUT: specific @T1(constants.%Self.21f) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T2(constants.%Self.260) {}
+// CHECK:STDOUT: specific @T2(constants.%Self.21f) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T3(constants.%Self.260) {}
+// CHECK:STDOUT: specific @T3(constants.%Self.21f) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Y(constants.%Self.ca7) {}
+// CHECK:STDOUT: specific @Y(constants.%Self.6aa) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- basic.carbon
 // CHECK:STDOUT:
@@ -331,12 +331,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T: type = import_ref Main//interface, T, loaded [concrete = %T]
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -371,12 +371,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -420,12 +420,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T: type = import_ref Main//interface, T, loaded [concrete = %T]
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -476,12 +476,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -510,7 +510,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.21f: <witness> = impl_witness file.%I.impl_witness_table.loc9 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.80d: <witness> = impl_witness file.%I.impl_witness_table.loc9 [concrete]
 // CHECK:STDOUT:   %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.652 [concrete]
@@ -519,19 +519,19 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %empty_struct_type> [concrete]
-// CHECK:STDOUT:   %I.impl_witness.f84: <witness> = impl_witness file.%I.impl_witness_table.loc10 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.186: <witness> = impl_witness file.%I.impl_witness_table.loc10 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T: type = import_ref Main//interface, T, loaded [concrete = %T]
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -543,13 +543,13 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import = import <none>
 // CHECK:STDOUT:   %C3.decl: type = class_decl @C3 [concrete = constants.%C3] {} {}
-// CHECK:STDOUT:   impl_decl @C3.as.I.impl.16e [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C3.as.I.impl.763 [concrete] {} {
 // CHECK:STDOUT:     %C3.ref: type = name_ref C3, file.%C3.decl [concrete = constants.%C3]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc9 = impl_witness_table (), @C3.as.I.impl.16e [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc9: <witness> = impl_witness %I.impl_witness_table.loc9 [concrete = constants.%I.impl_witness.21f]
-// CHECK:STDOUT:   impl_decl @C3.as.I.impl.625 [concrete] {} {
+// CHECK:STDOUT:   %I.impl_witness_table.loc9 = impl_witness_table (), @C3.as.I.impl.763 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc9: <witness> = impl_witness %I.impl_witness_table.loc9 [concrete = constants.%I.impl_witness.80d]
+// CHECK:STDOUT:   impl_decl @C3.as.I.impl.dd4 [concrete] {} {
 // CHECK:STDOUT:     %C3.ref: type = name_ref C3, file.%C3.decl [concrete = constants.%C3]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -565,25 +565,25 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc10_26.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant), @C3.as.I.impl.625 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc10: <witness> = impl_witness %I.impl_witness_table.loc10 [concrete = constants.%I.impl_witness.f84]
+// CHECK:STDOUT:   %I.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant), @C3.as.I.impl.dd4 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc10: <witness> = impl_witness %I.impl_witness_table.loc10 [concrete = constants.%I.impl_witness.186]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C3.as.I.impl.16e: %C3.ref as %I.ref;
+// CHECK:STDOUT: impl @C3.as.I.impl.763: %C3.ref as %I.ref;
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C3.as.I.impl.625: %C3.ref as %.loc10_14 {
+// CHECK:STDOUT: impl @C3.as.I.impl.dd4: %C3.ref as %.loc10_14 {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness.loc10
 // CHECK:STDOUT: }
@@ -616,22 +616,22 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %I_where.type.8c8: type = facet_type <@I where %impl.elem0 = %empty_struct_type> [concrete]
-// CHECK:STDOUT:   %I.impl_witness.b54: <witness> = impl_witness file.%I.impl_witness_table.loc9 [concrete]
-// CHECK:STDOUT:   %I_where.type.cba: type = facet_type <@I where %impl.elem0 = %empty_tuple.type> [concrete]
-// CHECK:STDOUT:   %I.impl_witness.ac6: <witness> = impl_witness file.%I.impl_witness_table.loc10 [concrete]
+// CHECK:STDOUT:   %I_where.type.9e7: type = facet_type <@I where %impl.elem0 = %empty_struct_type> [concrete]
+// CHECK:STDOUT:   %I.impl_witness.285: <witness> = impl_witness file.%I.impl_witness_table.loc9 [concrete]
+// CHECK:STDOUT:   %I_where.type.a95: type = facet_type <@I where %impl.elem0 = %empty_tuple.type> [concrete]
+// CHECK:STDOUT:   %I.impl_witness.e65: <witness> = impl_witness file.%I.impl_witness_table.loc10 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T: type = import_ref Main//interface, T, loaded [concrete = %T]
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -643,7 +643,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import = import <none>
 // CHECK:STDOUT:   %C4.decl: type = class_decl @C4 [concrete = constants.%C4] {} {}
-// CHECK:STDOUT:   impl_decl @C4.as.I.impl.62b [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C4.as.I.impl.2c4 [concrete] {} {
 // CHECK:STDOUT:     %C4.ref: type = name_ref C4, file.%C4.decl [concrete = constants.%C4]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -654,15 +654,15 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %.loc9_26.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %.loc9_26.2: type = converted %.loc9_26.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:     %.loc9_14: type = where_expr %.Self [concrete = constants.%I_where.type.8c8] {
+// CHECK:STDOUT:     %.loc9_14: type = where_expr %.Self [concrete = constants.%I_where.type.9e7] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%I.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc9_26.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc9 = impl_witness_table (%impl_witness_assoc_constant.loc9), @C4.as.I.impl.62b [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc9: <witness> = impl_witness %I.impl_witness_table.loc9 [concrete = constants.%I.impl_witness.b54]
+// CHECK:STDOUT:   %I.impl_witness_table.loc9 = impl_witness_table (%impl_witness_assoc_constant.loc9), @C4.as.I.impl.2c4 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc9: <witness> = impl_witness %I.impl_witness_table.loc9 [concrete = constants.%I.impl_witness.285]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc9: type = impl_witness_assoc_constant constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:   impl_decl @C4.as.I.impl.384 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C4.as.I.impl.93e [concrete] {} {
 // CHECK:STDOUT:     %C4.ref: type = name_ref C4, file.%C4.decl [concrete = constants.%C4]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -673,30 +673,30 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %.loc10_26.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc10_26.2: type = converted %.loc10_26.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %.loc10_14: type = where_expr %.Self [concrete = constants.%I_where.type.cba] {
+// CHECK:STDOUT:     %.loc10_14: type = where_expr %.Self [concrete = constants.%I_where.type.a95] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%I.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc10_26.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10), @C4.as.I.impl.384 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc10: <witness> = impl_witness %I.impl_witness_table.loc10 [concrete = constants.%I.impl_witness.ac6]
+// CHECK:STDOUT:   %I.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10), @C4.as.I.impl.93e [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc10: <witness> = impl_witness %I.impl_witness_table.loc10 [concrete = constants.%I.impl_witness.e65]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc10: type = impl_witness_assoc_constant constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C4.as.I.impl.62b: %C4.ref as %.loc9_14;
+// CHECK:STDOUT: impl @C4.as.I.impl.2c4: %C4.ref as %.loc9_14;
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C4.as.I.impl.384: %C4.ref as %.loc10_14 {
+// CHECK:STDOUT: impl @C4.as.I.impl.93e: %C4.ref as %.loc10_14 {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness.loc10
 // CHECK:STDOUT: }
@@ -740,7 +740,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I = import_ref Main//interface, I, unloaded
 // CHECK:STDOUT:   %Main.I3: type = import_ref Main//interface, I3, loaded [concrete = constants.%I3.type]
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.148 = import_ref Main//interface, inst26 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.6cd = import_ref Main//interface, inst26 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f5f: %I3.assoc_type = import_ref Main//interface, loc6_9, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.import_ref.680: %I3.assoc_type = import_ref Main//interface, loc7_9, loaded [concrete = constants.%assoc1]
 // CHECK:STDOUT:   %Main.import_ref.181: %I3.assoc_type = import_ref Main//interface, loc8_9, loaded [concrete = constants.%assoc2]
@@ -749,13 +749,13 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.T3 = import_ref Main//interface, T3, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5fb: type = import_ref Main//interface, loc6_9, loaded [concrete = %T1]
 // CHECK:STDOUT:   %T1: type = assoc_const_decl @T1 [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.8a8474.1: %I3.type = import_ref Main//interface, inst26 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.405dde.1: %I3.type = import_ref Main//interface, inst26 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Main.import_ref.e26: type = import_ref Main//interface, loc7_9, loaded [concrete = %T2]
 // CHECK:STDOUT:   %T2: type = assoc_const_decl @T2 [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.8a8474.2: %I3.type = import_ref Main//interface, inst26 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.405dde.2: %I3.type = import_ref Main//interface, inst26 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Main.import_ref.e32: type = import_ref Main//interface, loc8_9, loaded [concrete = %T3]
 // CHECK:STDOUT:   %T3: type = assoc_const_decl @T3 [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.8a8474.3: %I3.type = import_ref Main//interface, inst26 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.405dde.3: %I3.type = import_ref Main//interface, inst26 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -837,22 +837,22 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I3 [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.148
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.6cd
 // CHECK:STDOUT:   .T1 = imports.%Main.import_ref.f5f
 // CHECK:STDOUT:   .T2 = imports.%Main.import_ref.680
 // CHECK:STDOUT:   .T3 = imports.%Main.import_ref.181
 // CHECK:STDOUT:   witness = (imports.%Main.T1, imports.%Main.T2, imports.%Main.T3)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T1(imports.%Main.import_ref.8a8474.1: %I3.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T1(imports.%Main.import_ref.405dde.1: %I3.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T1:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T2(imports.%Main.import_ref.8a8474.2: %I3.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T2(imports.%Main.import_ref.405dde.2: %I3.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T2:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T3(imports.%Main.import_ref.8a8474.3: %I3.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T3(imports.%Main.import_ref.405dde.3: %I3.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T3:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -899,20 +899,20 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0 = %empty_struct_type> [concrete]
-// CHECK:STDOUT:   %I.impl_witness.9b2: <witness> = impl_witness file.%I.impl_witness_table.loc5 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.6de: <witness> = impl_witness file.%I.impl_witness_table.loc18 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.f1a: <witness> = impl_witness file.%I.impl_witness_table.loc5 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.336: <witness> = impl_witness file.%I.impl_witness_table.loc18 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T: type = import_ref Main//interface, T, loaded [concrete = %T]
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -924,7 +924,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import = import <none>
 // CHECK:STDOUT:   %C6.decl: type = class_decl @C6 [concrete = constants.%C6] {} {}
-// CHECK:STDOUT:   impl_decl @C6.as.I.impl.98d [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C6.as.I.impl.682 [concrete] {} {
 // CHECK:STDOUT:     %C6.ref: type = name_ref C6, file.%C6.decl [concrete = constants.%C6]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -940,31 +940,31 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc5_26.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc5 = impl_witness_table (%impl_witness_assoc_constant), @C6.as.I.impl.98d [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc5: <witness> = impl_witness %I.impl_witness_table.loc5 [concrete = constants.%I.impl_witness.9b2]
+// CHECK:STDOUT:   %I.impl_witness_table.loc5 = impl_witness_table (%impl_witness_assoc_constant), @C6.as.I.impl.682 [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc5: <witness> = impl_witness %I.impl_witness_table.loc5 [concrete = constants.%I.impl_witness.f1a]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:   impl_decl @C6.as.I.impl.482 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C6.as.I.impl.daf [concrete] {} {
 // CHECK:STDOUT:     %C6.ref: type = name_ref C6, file.%C6.decl [concrete = constants.%C6]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table.loc18 = impl_witness_table (<error>), @C6.as.I.impl.482 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.loc18: <witness> = impl_witness %I.impl_witness_table.loc18 [concrete = constants.%I.impl_witness.6de]
+// CHECK:STDOUT:   %I.impl_witness_table.loc18 = impl_witness_table (<error>), @C6.as.I.impl.daf [concrete]
+// CHECK:STDOUT:   %I.impl_witness.loc18: <witness> = impl_witness %I.impl_witness_table.loc18 [concrete = constants.%I.impl_witness.336]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C6.as.I.impl.98d: %C6.ref as %.loc5_14;
+// CHECK:STDOUT: impl @C6.as.I.impl.682: %C6.ref as %.loc5_14;
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C6.as.I.impl.482: %C6.ref as %I.ref {
+// CHECK:STDOUT: impl @C6.as.I.impl.daf: %C6.ref as %I.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%I.impl_witness.loc18
 // CHECK:STDOUT: }
@@ -1003,12 +1003,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T = import_ref Main//interface, T, unloaded
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1049,12 +1049,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1097,12 +1097,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T = import_ref Main//interface, T, unloaded
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1143,12 +1143,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1190,12 +1190,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T = import_ref Main//interface, T, unloaded
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1236,12 +1236,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1283,12 +1283,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T = import_ref Main//interface, T, unloaded
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1329,12 +1329,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1378,12 +1378,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//interface, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType = import_ref Main//interface, NonType, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//interface, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//interface, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.4fb: %I.assoc_type = import_ref Main//interface, loc3_20, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.T: type = import_ref Main//interface, T, loaded [concrete = %T]
 // CHECK:STDOUT:   %Main.import_ref.652: type = import_ref Main//interface, loc3_20, loaded [concrete = %T]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//interface, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1427,12 +1427,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.4fb
 // CHECK:STDOUT:   witness = (imports.%Main.T)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.5dd: %I.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @T(imports.%Main.import_ref.72c: %I.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1479,12 +1479,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %Main.I = import_ref Main//interface, I, unloaded
 // CHECK:STDOUT:   %Main.I3 = import_ref Main//interface, I3, unloaded
 // CHECK:STDOUT:   %Main.NonType: type = import_ref Main//interface, NonType, loaded [concrete = constants.%NonType.type]
-// CHECK:STDOUT:   %Main.import_ref.8b7 = import_ref Main//interface, inst41 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.4aa = import_ref Main//interface, inst41 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.9fa: %NonType.assoc_type = import_ref Main//interface, loc12_8, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.Y: %struct_type.a.225 = import_ref Main//interface, Y, loaded [concrete = %Y]
 // CHECK:STDOUT:   %Main.import_ref.f3d: %struct_type.a.225 = import_ref Main//interface, loc12_8, loaded [concrete = %Y]
 // CHECK:STDOUT:   %Y: %struct_type.a.225 = assoc_const_decl @Y [concrete] {}
-// CHECK:STDOUT:   %Main.import_ref.86c: %NonType.type = import_ref Main//interface, inst41 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.e9e: %NonType.type = import_ref Main//interface, inst41 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1523,12 +1523,12 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NonType [from "interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.8b7
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.4aa
 // CHECK:STDOUT:   .Y = imports.%Main.import_ref.9fa
 // CHECK:STDOUT:   witness = (imports.%Main.Y)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @Y(imports.%Main.import_ref.86c: %NonType.type) [from "interface.carbon"] {
+// CHECK:STDOUT: generic assoc_const @Y(imports.%Main.import_ref.e9e: %NonType.type) [from "interface.carbon"] {
 // CHECK:STDOUT:   assoc_const Y:! %struct_type.a.225;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1600,23 +1600,23 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   %IF.F.type: type = fn_type @IF.F [concrete]
 // CHECK:STDOUT:   %IF.F: %IF.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %IF.facet.01b: %IF.type = facet_value %.Self.as_type, (%IF.lookup_impl_witness) [symbolic_self]
-// CHECK:STDOUT:   %.c5b: type = fn_type_with_self_type %IF.F.type, %IF.facet.01b [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0: %.c5b = impl_witness_access %IF.lookup_impl_witness, element0 [symbolic_self]
+// CHECK:STDOUT:   %.c1e: type = fn_type_with_self_type %IF.F.type, %IF.facet.01b [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0: %.c1e = impl_witness_access %IF.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %IF_where.type: type = facet_type <@IF where %impl.elem0 = %int_0> [concrete]
 // CHECK:STDOUT:   %IF.impl_witness: <witness> = impl_witness file.%IF.impl_witness_table [concrete]
 // CHECK:STDOUT:   %CD.as.IF.impl.F.type: type = fn_type @CD.as.IF.impl.F [concrete]
 // CHECK:STDOUT:   %CD.as.IF.impl.F: %CD.as.IF.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %IF.facet.60c: %IF.type = facet_value %CD, (%IF.impl_witness) [concrete]
+// CHECK:STDOUT:   %IF.facet.82c: %IF.type = facet_value %CD, (%IF.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.IF: type = import_ref Main//interface_with_function, IF, loaded [concrete = constants.%IF.type]
-// CHECK:STDOUT:   %Main.import_ref.a2a = import_ref Main//interface_with_function, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.a2d = import_ref Main//interface_with_function, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f22: %IF.assoc_type = import_ref Main//interface_with_function, loc3_22, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.F: %IF.F.type = import_ref Main//interface_with_function, F, loaded [concrete = constants.%IF.F]
 // CHECK:STDOUT:   %Main.import_ref.4b7: %IF.F.type = import_ref Main//interface_with_function, loc3_22, loaded [concrete = constants.%IF.F]
-// CHECK:STDOUT:   %Main.import_ref.f57: %IF.type = import_ref Main//interface_with_function, inst17 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.137: %IF.type = import_ref Main//interface_with_function, inst17 [no loc], loaded [symbolic = constants.%Self]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1634,7 +1634,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:     %F.ref: %IF.assoc_type = name_ref F, imports.%Main.import_ref.f22 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc10_21: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: %.c5b = impl_witness_access constants.%IF.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
+// CHECK:STDOUT:     %impl.elem0: %.c1e = impl_witness_access constants.%IF.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:     %.loc10_15: type = where_expr %.Self [concrete = constants.%IF_where.type] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%IF.type
@@ -1647,7 +1647,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @IF [from "interface_with_function.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.a2a
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.a2d
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.f22
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
@@ -1668,7 +1668,7 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:   .Self = constants.%CD
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @IF.F(imports.%Main.import_ref.f57: %IF.type) [from "interface_with_function.carbon"] {
+// CHECK:STDOUT: generic fn @IF.F(imports.%Main.import_ref.137: %IF.type) [from "interface_with_function.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1679,5 +1679,5 @@ impl CD as IF where .F = 0 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @IF.F(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @IF.F(constants.%IF.facet.60c) {}
+// CHECK:STDOUT: specific @IF.F(constants.%IF.facet.82c) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/import_self.carbon b/toolchain/check/testdata/impl/import_self.carbon
index bc97e306509a..8a5de4c2e057 100644
--- a/toolchain/check/testdata/impl/import_self.carbon
+++ b/toolchain/check/testdata/impl/import_self.carbon
@@ -120,11 +120,11 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Add.type: type = facet_type <@Add> [concrete]
-// CHECK:STDOUT:   %Self.b3d: %Add.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.365: %Add.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Add.Op.type: type = fn_type @Add.Op [concrete]
 // CHECK:STDOUT:   %Add.Op: %Add.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.f73: type = facet_access_type %Self.b3d [symbolic]
-// CHECK:STDOUT:   %pattern_type.8f9: type = pattern_type %Self.as_type.f73 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.3c7: type = facet_access_type %Self.365 [symbolic]
+// CHECK:STDOUT:   %pattern_type.2f8: type = pattern_type %Self.as_type.3c7 [symbolic]
 // CHECK:STDOUT:   %Add.impl_witness: <witness> = impl_witness file.%Add.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.Add.impl.Op.type: type = fn_type @empty_tuple.type.as.Add.impl.Op [concrete]
@@ -135,12 +135,12 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Add.assoc_type: type = assoc_entity_type @Add [concrete]
 // CHECK:STDOUT:   %assoc0.5ca: %Add.assoc_type = assoc_entity element0, imports.%Main.import_ref.5a3 [concrete]
-// CHECK:STDOUT:   %.59e: type = fn_type_with_self_type %Add.Op.type, %Add.facet [concrete]
+// CHECK:STDOUT:   %.589: type = fn_type_with_self_type %Add.Op.type, %Add.facet [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -150,10 +150,10 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.07c = import_ref Main//a, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.ff9 = import_ref Main//a, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.f99: %Add.assoc_type = import_ref Main//a, loc5_41, loaded [concrete = constants.%assoc0.5ca]
 // CHECK:STDOUT:   %Main.Op: %Add.Op.type = import_ref Main//a, Op, loaded [concrete = constants.%Add.Op]
-// CHECK:STDOUT:   %Main.import_ref.e5e: %Add.type = import_ref Main//a, inst19 [no loc], loaded [symbolic = constants.%Self.b3d]
+// CHECK:STDOUT:   %Main.import_ref.2a7: %Add.type = import_ref Main//a, inst19 [no loc], loaded [symbolic = constants.%Self.365]
 // CHECK:STDOUT:   %Main.import_ref.5a3: %Add.Op.type = import_ref Main//a, loc5_41, loaded [concrete = constants.%Add.Op]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
@@ -202,7 +202,7 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Add [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.07c
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.ff9
 // CHECK:STDOUT:   .Op = imports.%Main.import_ref.f99
 // CHECK:STDOUT:   witness = (imports.%Main.Op)
 // CHECK:STDOUT: }
@@ -232,10 +232,10 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:   witness = file.%Add.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Add.Op(imports.%Main.import_ref.e5e: %Add.type) [from "a.carbon"] {
-// CHECK:STDOUT:   %Self: %Add.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.b3d)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.f73)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.8f9)]
+// CHECK:STDOUT: generic fn @Add.Op(imports.%Main.import_ref.2a7: %Add.type) [from "a.carbon"] {
+// CHECK:STDOUT:   %Self: %Add.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.365)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.3c7)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.2f8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -253,7 +253,7 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:   %x.ref: %empty_tuple.type = name_ref x, %x
 // CHECK:STDOUT:   %Add.ref: type = name_ref Add, imports.%Main.Add [concrete = constants.%Add.type]
 // CHECK:STDOUT:   %Op.ref: %Add.assoc_type = name_ref Op, imports.%Main.import_ref.f99 [concrete = constants.%assoc0.5ca]
-// CHECK:STDOUT:   %impl.elem0: %.59e = impl_witness_access constants.%Add.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.Add.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.589 = impl_witness_access constants.%Add.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.Add.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc11_11: <bound method> = bound_method %x.ref, %impl.elem0
 // CHECK:STDOUT:   %y.ref: %empty_tuple.type = name_ref y, %y
 // CHECK:STDOUT:   %empty_tuple.type.as.Add.impl.Op.call: init %empty_tuple.type = call %bound_method.loc11_11(%x.ref, %y.ref)
@@ -261,18 +261,18 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:   %.loc11_22.2: ref %empty_tuple.type = temporary %.loc11_22.1, %empty_tuple.type.as.Add.impl.Op.call
 // CHECK:STDOUT:   %tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc11_23: %empty_tuple.type = converted %empty_tuple.type.as.Add.impl.Op.call, %tuple [concrete = constants.%empty_tuple]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc11_22.2, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc11_22.2, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc11_22: <bound method> = bound_method %.loc11_22.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %.loc11_22.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc11_22(%addr)
 // CHECK:STDOUT:   return %.loc11_23
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Add.Op(constants.%Self.b3d) {
-// CHECK:STDOUT:   %Self => constants.%Self.b3d
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.f73
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8f9
+// CHECK:STDOUT: specific @Add.Op(constants.%Self.365) {
+// CHECK:STDOUT:   %Self => constants.%Self.365
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.3c7
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2f8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Add.Op(constants.%Add.facet) {
diff --git a/toolchain/check/testdata/impl/import_thunk.carbon b/toolchain/check/testdata/impl/import_thunk.carbon
index f2a773cfa840..afa64dc77873 100644
--- a/toolchain/check/testdata/impl/import_thunk.carbon
+++ b/toolchain/check/testdata/impl/import_thunk.carbon
@@ -111,40 +111,40 @@ fn G() {
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %Destroy.Op: %Destroy.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.35ec57.1: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%X) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.5043a2.1: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%X) [symbolic]
 // CHECK:STDOUT:   %ptr.40dc71.1: type = ptr_type %C.13320f.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.2a1e48.1: type = pattern_type %ptr.40dc71.1 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.f926b8.1: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.c1f409.1: %C.as.Destroy.impl.Op.type.f926b8.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.ca092c.1: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.415e0d.1: %C.as.Destroy.impl.Op.type.ca092c.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Y: %empty_tuple.type = bind_symbolic_name Y, 0 [symbolic]
 // CHECK:STDOUT:   %C.13320f.2: type = class_type @C, @C(%Y) [symbolic]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%Y) [symbolic]
 // CHECK:STDOUT:   %pattern_type.ccc: type = pattern_type %C.13320f.2 [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.0daaa1.1: type = fn_type @C.as.I.impl.F.loc8_17.1, @C.as.I.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.49c1ac.1: %C.as.I.impl.F.type.0daaa1.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1cb1f4.1: type = fn_type @C.as.I.impl.F.loc8_17.1, @C.as.I.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.7724ef.1: %C.as.I.impl.F.type.1cb1f4.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.13320f.2, (%I.impl_witness) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.0daaa1.2: type = fn_type @C.as.I.impl.F.loc8_17.2, @C.as.I.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.49c1ac.2: %C.as.I.impl.F.type.0daaa1.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1cb1f4.2: type = fn_type @C.as.I.impl.F.loc8_17.2, @C.as.I.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.7724ef.2: %C.as.I.impl.F.type.1cb1f4.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.a35: <witness> = require_complete_type %C.13320f.2 [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %C.as.I.impl.F.49c1ac.1, @C.as.I.impl.F.loc8_17.1(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %C.as.I.impl.F.7724ef.1, @C.as.I.impl.F.loc8_17.1(%Y) [symbolic]
 // CHECK:STDOUT:   %C.val: %C.13320f.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.assoc_type: type = assoc_entity_type @Destroy [concrete]
 // CHECK:STDOUT:   %assoc0: %Destroy.assoc_type = assoc_entity element0, imports.%Core.import_ref.725 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.35ec57.2: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.f926b8.2: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.c1f409.2: %C.as.Destroy.impl.Op.type.f926b8.2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.10e691.2: %Destroy.type = facet_value %C.13320f.2, (%Destroy.impl_witness.35ec57.2) [symbolic]
-// CHECK:STDOUT:   %.926: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.10e691.2 [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.5043a2.2: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.ca092c.2: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.415e0d.2: %C.as.Destroy.impl.Op.type.ca092c.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.16f169.2: %Destroy.type = facet_value %C.13320f.2, (%Destroy.impl_witness.5043a2.2) [symbolic]
+// CHECK:STDOUT:   %.158: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.16f169.2 [symbolic]
 // CHECK:STDOUT:   %ptr.40dc71.2: type = ptr_type %C.13320f.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.2a1e48.2: type = pattern_type %ptr.40dc71.2 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.c1f409.2, @C.as.Destroy.impl.Op(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.415e0d.2, @C.as.Destroy.impl.Op(%Y) [symbolic]
 // CHECK:STDOUT:   %require_complete.0b0: <witness> = require_complete_type %ptr.40dc71.2 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -157,10 +157,10 @@ fn G() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.import_ref.f99: %Destroy.assoc_type = import_ref Core//prelude/parts/destroy, loc5_28, loaded [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//a, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//a, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.507 = import_ref Main//a, loc5_14, unloaded
 // CHECK:STDOUT:   %Main.F: %I.F.type = import_ref Main//a, F, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//a, inst19 [no loc], loaded [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//a, inst19 [no loc], loaded [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %Core.import_ref.725: %Destroy.Op.type = import_ref Core//prelude/parts/destroy, loc5_28, loaded [concrete = constants.%Destroy.Op]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -202,7 +202,7 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.507
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
@@ -210,14 +210,14 @@ fn G() {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%X.loc5_9.2: %empty_tuple.type) {
 // CHECK:STDOUT:   %X: %empty_tuple.type = bind_symbolic_name X, 0 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%X) [symbolic = %C (constants.%C.13320f.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.35ec57.1)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5043a2.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.f926b8.1)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.f926b8.1) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.c1f409.1)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.ca092c.1)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ca092c.1) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.415e0d.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.f926b8.1) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.c1f409.1)] {
+// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ca092c.1) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.415e0d.1)] {
 // CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.2a1e48.1) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.2a1e48.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc5_17.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -242,13 +242,13 @@ fn G() {
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @C.as.I.impl(%Y.loc7_14.1) [symbolic = %I.impl_witness (constants.%I.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.1: type = fn_type @C.as.I.impl.F.loc8_17.1, @C.as.I.impl(%Y.loc7_14.1) [symbolic = %C.as.I.impl.F.type.loc8_17.1 (constants.%C.as.I.impl.F.type.0daaa1.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.1: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.1 (%C.as.I.impl.F.type.0daaa1.1) = struct_value () [symbolic = %C.as.I.impl.F.loc8_17.1 (constants.%C.as.I.impl.F.49c1ac.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.2: type = fn_type @C.as.I.impl.F.loc8_17.2, @C.as.I.impl(%Y.loc7_14.1) [symbolic = %C.as.I.impl.F.type.loc8_17.2 (constants.%C.as.I.impl.F.type.0daaa1.2)]
-// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.2: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.2 (%C.as.I.impl.F.type.0daaa1.2) = struct_value () [symbolic = %C.as.I.impl.F.loc8_17.2 (constants.%C.as.I.impl.F.49c1ac.2)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.1: type = fn_type @C.as.I.impl.F.loc8_17.1, @C.as.I.impl(%Y.loc7_14.1) [symbolic = %C.as.I.impl.F.type.loc8_17.1 (constants.%C.as.I.impl.F.type.1cb1f4.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.1: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.1 (%C.as.I.impl.F.type.1cb1f4.1) = struct_value () [symbolic = %C.as.I.impl.F.loc8_17.1 (constants.%C.as.I.impl.F.7724ef.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.2: type = fn_type @C.as.I.impl.F.loc8_17.2, @C.as.I.impl(%Y.loc7_14.1) [symbolic = %C.as.I.impl.F.type.loc8_17.2 (constants.%C.as.I.impl.F.type.1cb1f4.2)]
+// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.2: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.2 (%C.as.I.impl.F.type.1cb1f4.2) = struct_value () [symbolic = %C.as.I.impl.F.loc8_17.2 (constants.%C.as.I.impl.F.7724ef.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %C.loc7_25.2 as %I.ref {
-// CHECK:STDOUT:     %C.as.I.impl.F.decl.loc8_17.1: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.1 (%C.as.I.impl.F.type.0daaa1.1) = fn_decl @C.as.I.impl.F.loc8_17.1 [symbolic = @C.as.I.impl.%C.as.I.impl.F.loc8_17.1 (constants.%C.as.I.impl.F.49c1ac.1)] {
+// CHECK:STDOUT:     %C.as.I.impl.F.decl.loc8_17.1: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.1 (%C.as.I.impl.F.type.1cb1f4.1) = fn_decl @C.as.I.impl.F.loc8_17.1 [symbolic = @C.as.I.impl.%C.as.I.impl.F.loc8_17.1 (constants.%C.as.I.impl.F.7724ef.1)] {
 // CHECK:STDOUT:       %x.patt: @C.as.I.impl.F.loc8_17.1.%pattern_type (%pattern_type.ccc) = binding_pattern x [concrete]
 // CHECK:STDOUT:       %x.param_patt: @C.as.I.impl.F.loc8_17.1.%pattern_type (%pattern_type.ccc) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -260,7 +260,7 @@ fn G() {
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:       %x: @C.as.I.impl.F.loc8_17.1.%C.loc8_14.1 (%C.13320f.2) = bind_name x, %x.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %C.as.I.impl.F.decl.loc8_17.2: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.2 (%C.as.I.impl.F.type.0daaa1.2) = fn_decl @C.as.I.impl.F.loc8_17.2 [symbolic = @C.as.I.impl.%C.as.I.impl.F.loc8_17.2 (constants.%C.as.I.impl.F.49c1ac.2)] {
+// CHECK:STDOUT:     %C.as.I.impl.F.decl.loc8_17.2: @C.as.I.impl.%C.as.I.impl.F.type.loc8_17.2 (%C.as.I.impl.F.type.1cb1f4.2) = fn_decl @C.as.I.impl.F.loc8_17.2 [symbolic = @C.as.I.impl.%C.as.I.impl.F.loc8_17.2 (constants.%C.as.I.impl.F.7724ef.2)] {
 // CHECK:STDOUT:       %x.patt: %pattern_type.a96 = binding_pattern x [concrete]
 // CHECK:STDOUT:       %x.param_patt: %pattern_type.a96 = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -285,7 +285,7 @@ fn G() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.13320f.1 [symbolic = @C.as.Destroy.impl.%C (constants.%C.13320f.1)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%X) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.35ec57.1)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%X) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.5043a2.1)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -305,7 +305,7 @@ fn G() {
 // CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.40dc71.1)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5dd: %I.type) [from "a.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.72c: %I.type) [from "a.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -326,25 +326,25 @@ fn G() {
 // CHECK:STDOUT: generic fn @C.as.I.impl.F.loc8_17.2(@C.as.I.impl.%Y.loc7_14.2: %empty_tuple.type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Y: %empty_tuple.type = bind_symbolic_name Y, 0 [symbolic = %Y (constants.%Y)]
-// CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F.loc8_17.1, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type (constants.%C.as.I.impl.F.type.0daaa1.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F: @C.as.I.impl.F.loc8_17.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.0daaa1.1) = struct_value () [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.49c1ac.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F.loc8_17.1, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type (constants.%C.as.I.impl.F.type.1cb1f4.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F: @C.as.I.impl.F.loc8_17.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.1cb1f4.1) = struct_value () [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.7724ef.1)]
 // CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.loc8_17.2: <specific function> = specific_function %C.as.I.impl.F, @C.as.I.impl.F.loc8_17.1(%Y) [symbolic = %C.as.I.impl.F.specific_fn.loc8_17.2 (constants.%C.as.I.impl.F.specific_fn)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Y) [symbolic = %C (constants.%C.13320f.2)]
 // CHECK:STDOUT:   %require_complete.1: <witness> = require_complete_type %C [symbolic = %require_complete.1 (constants.%require_complete.a35)]
 // CHECK:STDOUT:   %C.val: @C.as.I.impl.F.loc8_17.2.%C (%C.13320f.2) = struct_value () [symbolic = %C.val (constants.%C.val)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Y) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.35ec57.2)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %C, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.10e691.2)]
-// CHECK:STDOUT:   %.6: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.6 (constants.%.926)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.f926b8.2)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.I.impl.F.loc8_17.2.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.f926b8.2) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.c1f409.2)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Y) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5043a2.2)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %C, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.16f169.2)]
+// CHECK:STDOUT:   %.6: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.6 (constants.%.158)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.ca092c.2)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.I.impl.F.loc8_17.2.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ca092c.2) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.415e0d.2)]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op, @C.as.Destroy.impl.Op(%Y) [symbolic = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.40dc71.2)]
 // CHECK:STDOUT:   %require_complete.2: <witness> = require_complete_type %ptr [symbolic = %require_complete.2 (constants.%require_complete.0b0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: %empty_struct_type) [thunk @C.as.I.impl.%C.as.I.impl.F.decl.loc8_17.1] {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %.loc8: @C.as.I.impl.F.loc8_17.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.0daaa1.1) = specific_constant @C.as.I.impl.%C.as.I.impl.F.decl.loc8_17.1, @C.as.I.impl(constants.%Y) [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.49c1ac.1)]
-// CHECK:STDOUT:     %F.ref: @C.as.I.impl.F.loc8_17.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.0daaa1.1) = name_ref F, %.loc8 [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.49c1ac.1)]
+// CHECK:STDOUT:     %.loc8: @C.as.I.impl.F.loc8_17.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.1cb1f4.1) = specific_constant @C.as.I.impl.%C.as.I.impl.F.decl.loc8_17.1, @C.as.I.impl(constants.%Y) [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.7724ef.1)]
+// CHECK:STDOUT:     %F.ref: @C.as.I.impl.F.loc8_17.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.1cb1f4.1) = name_ref F, %.loc8 [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.7724ef.1)]
 // CHECK:STDOUT:     %x.ref: %empty_struct_type = name_ref x, %x.param
 // CHECK:STDOUT:     %C.as.I.impl.F.specific_fn.loc8_17.1: <specific function> = specific_function %F.ref, @C.as.I.impl.F.loc8_17.1(constants.%Y) [symbolic = %C.as.I.impl.F.specific_fn.loc8_17.2 (constants.%C.as.I.impl.F.specific_fn)]
 // CHECK:STDOUT:     %.1: ref @C.as.I.impl.F.loc8_17.2.%C (%C.13320f.2) = temporary_storage
@@ -354,7 +354,7 @@ fn G() {
 // CHECK:STDOUT:     %.5: @C.as.I.impl.F.loc8_17.2.%C (%C.13320f.2) = bind_value %.4
 // CHECK:STDOUT:     %C.as.I.impl.F.call: init %empty_tuple.type = call %C.as.I.impl.F.specific_fn.loc8_17.1(%.5)
 // CHECK:STDOUT:     %Op.ref: %Destroy.assoc_type = name_ref Op, imports.%Core.import_ref.f99 [concrete = constants.%assoc0]
-// CHECK:STDOUT:     %impl.elem0: @C.as.I.impl.F.loc8_17.2.%.6 (%.926) = impl_witness_access constants.%Destroy.impl_witness.35ec57.2, element0 [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.c1f409.2)]
+// CHECK:STDOUT:     %impl.elem0: @C.as.I.impl.F.loc8_17.2.%.6 (%.158) = impl_witness_access constants.%Destroy.impl_witness.5043a2.2, element0 [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.415e0d.2)]
 // CHECK:STDOUT:     %bound_method.1: <bound method> = bound_method %.3, %impl.elem0
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.Destroy.impl.Op(constants.%Y) [symbolic = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn)]
 // CHECK:STDOUT:     %bound_method.2: <bound method> = bound_method %.3, %specific_fn
@@ -371,7 +371,7 @@ fn G() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%X) {
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %C => constants.%C.13320f.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.35ec57.1
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5043a2.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%X) {
@@ -393,13 +393,13 @@ fn G() {
 // CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.1 => constants.%C.as.I.impl.F.type.0daaa1.1
-// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.1 => constants.%C.as.I.impl.F.49c1ac.1
-// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.2 => constants.%C.as.I.impl.F.type.0daaa1.2
-// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.2 => constants.%C.as.I.impl.F.49c1ac.2
+// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.1 => constants.%C.as.I.impl.F.type.1cb1f4.1
+// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.1 => constants.%C.as.I.impl.F.7724ef.1
+// CHECK:STDOUT:   %C.as.I.impl.F.type.loc8_17.2 => constants.%C.as.I.impl.F.type.1cb1f4.2
+// CHECK:STDOUT:   %C.as.I.impl.F.loc8_17.2 => constants.%C.as.I.impl.F.7724ef.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl.F.loc8_17.1(constants.%Y) {
 // CHECK:STDOUT:   %Y => constants.%Y
@@ -417,11 +417,11 @@ fn G() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Y) {
 // CHECK:STDOUT:   %X => constants.%Y
 // CHECK:STDOUT:   %C => constants.%C.13320f.2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.35ec57.2
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5043a2.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.f926b8.2
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.c1f409.2
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.ca092c.2
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.415e0d.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Y) {
@@ -446,58 +446,58 @@ fn G() {
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %C.607: type = class_type @C, @C(%empty_tuple) [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.3f3: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.e03 [concrete]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.5d03b3.1: <witness> = impl_witness imports.%Destroy.impl_witness_table.c33, @C.as.Destroy.impl(%X) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.1b919a.1: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.65ca93.1: %C.as.Destroy.impl.Op.type.1b919a.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.c6895a.1: <witness> = impl_witness imports.%Destroy.impl_witness_table.f5c, @C.as.Destroy.impl(%X) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.fd657f.1: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.ab5420.1: %C.as.Destroy.impl.Op.type.fd657f.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.40dc71.1: type = ptr_type %C.13320f.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.2a1e48.1: type = pattern_type %ptr.40dc71.1 [symbolic]
 // CHECK:STDOUT:   %Y: %empty_tuple.type = bind_symbolic_name Y, 0 [symbolic]
 // CHECK:STDOUT:   %C.13320f.2: type = class_type @C, @C(%Y) [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.7d9: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.0daaa1.1: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.49c1ac.1: %C.as.I.impl.F.type.0daaa1.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.ead: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1cb1f4.1: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.7724ef.1: %C.as.I.impl.F.type.1cb1f4.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.ccc: type = pattern_type %C.13320f.2 [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.0daaa1.2: type = fn_type @C.as.I.impl.F.2, @C.as.I.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.49c1ac.2: %C.as.I.impl.F.type.0daaa1.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1cb1f4.2: type = fn_type @C.as.I.impl.F.2, @C.as.I.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.7724ef.2: %C.as.I.impl.F.type.1cb1f4.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %require_complete.a35: <witness> = require_complete_type %C.13320f.2 [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.8d9: <specific function> = specific_function %C.as.I.impl.F.49c1ac.1, @C.as.I.impl.F.1(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.320: <specific function> = specific_function %C.as.I.impl.F.7724ef.1, @C.as.I.impl.F.1(%Y) [symbolic]
 // CHECK:STDOUT:   %C.val.56a: %C.13320f.2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.5d03b3.2: <witness> = impl_witness imports.%Destroy.impl_witness_table.c33, @C.as.Destroy.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.6bc: %Destroy.type = facet_value %C.13320f.2, (%Destroy.impl_witness.5d03b3.2) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.c6895a.2: <witness> = impl_witness imports.%Destroy.impl_witness_table.f5c, @C.as.Destroy.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.7f9: %Destroy.type = facet_value %C.13320f.2, (%Destroy.impl_witness.c6895a.2) [symbolic]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %.7a8: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.6bc [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.1b919a.2: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.65ca93.2: %C.as.Destroy.impl.Op.type.1b919a.2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.c52: <specific function> = specific_function %C.as.Destroy.impl.Op.65ca93.2, @C.as.Destroy.impl.Op(%Y) [symbolic]
+// CHECK:STDOUT:   %.f83: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.7f9 [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.fd657f.2: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.ab5420.2: %C.as.Destroy.impl.Op.type.fd657f.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.7c3: <specific function> = specific_function %C.as.Destroy.impl.Op.ab5420.2, @C.as.Destroy.impl.Op(%Y) [symbolic]
 // CHECK:STDOUT:   %ptr.40dc71.2: type = ptr_type %C.13320f.2 [symbolic]
 // CHECK:STDOUT:   %require_complete.0b0: <witness> = require_complete_type %ptr.40dc71.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.2a1e48.2: type = pattern_type %ptr.40dc71.2 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.02b: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%empty_tuple) [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.af4856.1: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%empty_tuple) [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.5fa954.1: %C.as.I.impl.F.type.af4856.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.af4856.2: type = fn_type @C.as.I.impl.F.2, @C.as.I.impl(%empty_tuple) [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.5fa954.2: %C.as.I.impl.F.type.af4856.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.607, (%I.impl_witness.02b) [concrete]
-// CHECK:STDOUT:   %.885: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %I.impl_witness.f72: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.76df52.1: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.bc5ddd.1: %C.as.I.impl.F.type.76df52.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.76df52.2: type = fn_type @C.as.I.impl.F.2, @C.as.I.impl(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.bc5ddd.2: %C.as.I.impl.F.type.76df52.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.607, (%I.impl_witness.f72) [concrete]
+// CHECK:STDOUT:   %.d53: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.4832e8.1: <specific function> = specific_function %C.as.I.impl.F.5fa954.2, @C.as.I.impl.F.2(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.02feed.1: <specific function> = specific_function %C.as.I.impl.F.bc5ddd.2, @C.as.I.impl.F.2(%empty_tuple) [concrete]
 // CHECK:STDOUT:   %pattern_type.186: type = pattern_type %C.607 [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.4832e8.2: <specific function> = specific_function %C.as.I.impl.F.5fa954.1, @C.as.I.impl.F.1(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn.02feed.2: <specific function> = specific_function %C.as.I.impl.F.bc5ddd.1, @C.as.I.impl.F.1(%empty_tuple) [concrete]
 // CHECK:STDOUT:   %C.val.12f: %C.607 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.867: <witness> = impl_witness imports.%Destroy.impl_witness_table.c33, @C.as.Destroy.impl(%empty_tuple) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.27f: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%empty_tuple) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.8db: %C.as.Destroy.impl.Op.type.27f = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.facet.9d1: %Destroy.type = facet_value %C.607, (%Destroy.impl_witness.867) [concrete]
-// CHECK:STDOUT:   %.b0b: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.9d1 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.36e: <witness> = impl_witness imports.%Destroy.impl_witness_table.f5c, @C.as.Destroy.impl(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.be3: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.f0b: %C.as.Destroy.impl.Op.type.be3 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.facet.5aa: %Destroy.type = facet_value %C.607, (%Destroy.impl_witness.36e) [concrete]
+// CHECK:STDOUT:   %.cec: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.5aa [concrete]
 // CHECK:STDOUT:   %ptr.2ce: type = ptr_type %C.607 [concrete]
 // CHECK:STDOUT:   %pattern_type.947: type = pattern_type %ptr.2ce [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.e84: <specific function> = specific_function %C.as.Destroy.impl.Op.8db, @C.as.Destroy.impl.Op(%empty_tuple) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.3b1: <specific function> = specific_function %C.as.Destroy.impl.Op.f0b, @C.as.Destroy.impl.Op(%empty_tuple) [concrete]
 // CHECK:STDOUT:   %complete_type.e2c: <witness> = complete_type_witness %ptr.2ce [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -512,27 +512,27 @@ fn G() {
 // CHECK:STDOUT:   %Main.import_ref.eb1c17.1: %empty_tuple.type = import_ref Main//b, loc5_9, loaded [symbolic = @C.%X (constants.%X)]
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//b, loc5_18, loaded [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   %Main.import_ref.572 = import_ref Main//b, inst33 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//a, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//a, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c44: %I.assoc_type = import_ref Main//a, loc5_14, loaded [concrete = constants.%assoc0.3f3]
 // CHECK:STDOUT:   %Main.F.8b9 = import_ref Main//a, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.e03: %I.F.type = import_ref Main//a, loc5_14, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//a, inst19 [no loc], loaded [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %Main.import_ref.578: <witness> = import_ref Main//b, loc5_17, loaded [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.5d03b3.1)]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//a, inst19 [no loc], loaded [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %Main.import_ref.36e: <witness> = import_ref Main//b, loc5_17, loaded [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.c6895a.1)]
 // CHECK:STDOUT:   %Main.import_ref.eb1c17.2: %empty_tuple.type = import_ref Main//b, loc5_9, loaded [symbolic = @C.%X (constants.%X)]
 // CHECK:STDOUT:   %Main.import_ref.94a: type = import_ref Main//b, loc5_17, loaded [symbolic = @C.as.Destroy.impl.%C (constants.%C.13320f.1)]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//b, inst36 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.e21: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.1b919a.1) = import_ref Main//b, loc5_17, loaded [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.65ca93.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.c33 = impl_witness_table (%Main.import_ref.e21), @C.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//b, inst36 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.0cd: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.fd657f.1) = import_ref Main//b, loc5_17, loaded [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.ab5420.1)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.f5c = impl_witness_table (%Main.import_ref.0cd), @C.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.eb1c17.3: %empty_tuple.type = import_ref Main//b, loc5_9, loaded [symbolic = @C.%X (constants.%X)]
-// CHECK:STDOUT:   %Main.import_ref.f89: <witness> = import_ref Main//b, loc7_32, loaded [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness.7d9)]
+// CHECK:STDOUT:   %Main.import_ref.1d8: <witness> = import_ref Main//b, loc7_32, loaded [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness.ead)]
 // CHECK:STDOUT:   %Main.import_ref.eb1c17.4: %empty_tuple.type = import_ref Main//b, loc7_14, loaded [symbolic = @C.as.I.impl.%Y (constants.%Y)]
 // CHECK:STDOUT:   %Main.import_ref.dbf: type = import_ref Main//b, loc7_25, loaded [symbolic = @C.as.I.impl.%C (constants.%C.13320f.2)]
 // CHECK:STDOUT:   %Main.import_ref.f50: type = import_ref Main//b, loc7_30, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %Main.import_ref.047: @C.as.I.impl.%C.as.I.impl.F.type.2 (%C.as.I.impl.F.type.0daaa1.2) = import_ref Main//b, loc8_17, loaded [symbolic = @C.as.I.impl.%C.as.I.impl.F.2 (constants.%C.as.I.impl.F.49c1ac.2)]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.047), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.265: @C.as.I.impl.%C.as.I.impl.F.type.2 (%C.as.I.impl.F.type.1cb1f4.2) = import_ref Main//b, loc8_17, loaded [symbolic = @C.as.I.impl.%C.as.I.impl.F.2 (constants.%C.as.I.impl.F.7724ef.2)]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.265), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.eb1c17.5: %empty_tuple.type = import_ref Main//b, loc7_14, loaded [symbolic = @C.as.I.impl.%Y (constants.%Y)]
 // CHECK:STDOUT:   %Main.import_ref.eb1c17.6: %empty_tuple.type = import_ref Main//b, loc7_14, loaded [symbolic = @C.as.I.impl.%Y (constants.%Y)]
-// CHECK:STDOUT:   %Main.F.5a8: @C.as.I.impl.%C.as.I.impl.F.type.1 (%C.as.I.impl.F.type.0daaa1.1) = import_ref Main//b, F, loaded [symbolic = @C.as.I.impl.%C.as.I.impl.F.1 (constants.%C.as.I.impl.F.49c1ac.1)]
+// CHECK:STDOUT:   %Main.F.aca: @C.as.I.impl.%C.as.I.impl.F.type.1 (%C.as.I.impl.F.type.1cb1f4.1) = import_ref Main//b, F, loaded [symbolic = @C.as.I.impl.%C.as.I.impl.F.1 (constants.%C.as.I.impl.F.7724ef.1)]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -550,7 +550,7 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.c44
 // CHECK:STDOUT:   witness = (imports.%Main.F.8b9)
 // CHECK:STDOUT: }
@@ -558,32 +558,32 @@ fn G() {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(imports.%Main.import_ref.eb1c17.2: %empty_tuple.type) [from "b.carbon"] {
 // CHECK:STDOUT:   %X: %empty_tuple.type = bind_symbolic_name X, 0 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%X) [symbolic = %C (constants.%C.13320f.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.c33, @C.as.Destroy.impl(%X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5d03b3.1)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.f5c, @C.as.Destroy.impl(%X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c6895a.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.1b919a.1)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.1b919a.1) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.65ca93.1)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%X) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.fd657f.1)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.fd657f.1) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.ab5420.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%Main.import_ref.94a as imports.%Main.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%Main.import_ref.94a as imports.%Main.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.578
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.36e
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.I.impl(imports.%Main.import_ref.eb1c17.4: %empty_tuple.type) [from "b.carbon"] {
 // CHECK:STDOUT:   %Y: %empty_tuple.type = bind_symbolic_name Y, 0 [symbolic = %Y (constants.%Y)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Y) [symbolic = %C (constants.%C.13320f.2)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%Y) [symbolic = %I.impl_witness (constants.%I.impl_witness.7d9)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%Y) [symbolic = %I.impl_witness (constants.%I.impl_witness.ead)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type.1: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type.1 (constants.%C.as.I.impl.F.type.0daaa1.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F.1: @C.as.I.impl.%C.as.I.impl.F.type.1 (%C.as.I.impl.F.type.0daaa1.1) = struct_value () [symbolic = %C.as.I.impl.F.1 (constants.%C.as.I.impl.F.49c1ac.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.2: type = fn_type @C.as.I.impl.F.2, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type.2 (constants.%C.as.I.impl.F.type.0daaa1.2)]
-// CHECK:STDOUT:   %C.as.I.impl.F.2: @C.as.I.impl.%C.as.I.impl.F.type.2 (%C.as.I.impl.F.type.0daaa1.2) = struct_value () [symbolic = %C.as.I.impl.F.2 (constants.%C.as.I.impl.F.49c1ac.2)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type.1 (constants.%C.as.I.impl.F.type.1cb1f4.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F.1: @C.as.I.impl.%C.as.I.impl.F.type.1 (%C.as.I.impl.F.type.1cb1f4.1) = struct_value () [symbolic = %C.as.I.impl.F.1 (constants.%C.as.I.impl.F.7724ef.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.2: type = fn_type @C.as.I.impl.F.2, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type.2 (constants.%C.as.I.impl.F.type.1cb1f4.2)]
+// CHECK:STDOUT:   %C.as.I.impl.F.2: @C.as.I.impl.%C.as.I.impl.F.type.2 (%C.as.I.impl.F.type.1cb1f4.2) = struct_value () [symbolic = %C.as.I.impl.F.2 (constants.%C.as.I.impl.F.7724ef.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: imports.%Main.import_ref.dbf as imports.%Main.import_ref.f50 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.f89
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.1d8
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -609,33 +609,33 @@ fn G() {
 // CHECK:STDOUT:   %C: type = class_type @C, @C(constants.%empty_tuple) [concrete = constants.%C.607]
 // CHECK:STDOUT:   %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   %F.ref.loc7_11: %I.assoc_type = name_ref F, imports.%Main.import_ref.c44 [concrete = constants.%assoc0.3f3]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value constants.%C.607, (constants.%I.impl_witness.02b) [concrete = constants.%I.facet]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value constants.%C.607, (constants.%I.impl_witness.f72) [concrete = constants.%I.facet]
 // CHECK:STDOUT:   %.loc7_8: %I.type = converted %C, %I.facet [concrete = constants.%I.facet]
-// CHECK:STDOUT:   %impl.elem0: %.885 = impl_witness_access constants.%I.impl_witness.02b, element0 [concrete = constants.%C.as.I.impl.F.5fa954.2]
+// CHECK:STDOUT:   %impl.elem0: %.d53 = impl_witness_access constants.%I.impl_witness.f72, element0 [concrete = constants.%C.as.I.impl.F.bc5ddd.2]
 // CHECK:STDOUT:   %.loc7_16.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %empty_struct.loc7_16.1: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   %.loc7_17.1: %empty_struct_type = converted %.loc7_16.1, %empty_struct.loc7_16.1 [concrete = constants.%empty_struct]
-// CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.I.impl.F.2(constants.%empty_tuple) [concrete = constants.%C.as.I.impl.F.specific_fn.4832e8.1]
+// CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.I.impl.F.2(constants.%empty_tuple) [concrete = constants.%C.as.I.impl.F.specific_fn.02feed.1]
 // CHECK:STDOUT:   %empty_struct.loc7_16.2: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   %.loc7_16.2: %empty_struct_type = converted %.loc7_16.1, %empty_struct.loc7_16.2 [concrete = constants.%empty_struct]
-// CHECK:STDOUT:   %.loc7_17.2: %C.as.I.impl.F.type.af4856.1 = specific_constant imports.%Main.F.5a8, @C.as.I.impl(constants.%empty_tuple) [concrete = constants.%C.as.I.impl.F.5fa954.1]
-// CHECK:STDOUT:   %F.ref.loc7_17: %C.as.I.impl.F.type.af4856.1 = name_ref F, %.loc7_17.2 [concrete = constants.%C.as.I.impl.F.5fa954.1]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %F.ref.loc7_17, @C.as.I.impl.F.1(constants.%empty_tuple) [concrete = constants.%C.as.I.impl.F.specific_fn.4832e8.2]
+// CHECK:STDOUT:   %.loc7_17.2: %C.as.I.impl.F.type.76df52.1 = specific_constant imports.%Main.F.aca, @C.as.I.impl(constants.%empty_tuple) [concrete = constants.%C.as.I.impl.F.bc5ddd.1]
+// CHECK:STDOUT:   %F.ref.loc7_17: %C.as.I.impl.F.type.76df52.1 = name_ref F, %.loc7_17.2 [concrete = constants.%C.as.I.impl.F.bc5ddd.1]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %F.ref.loc7_17, @C.as.I.impl.F.1(constants.%empty_tuple) [concrete = constants.%C.as.I.impl.F.specific_fn.02feed.2]
 // CHECK:STDOUT:   %.loc7_16.3: ref %C.607 = temporary_storage
 // CHECK:STDOUT:   %.loc7_16.4: init %C.607 = class_init (), %.loc7_16.3 [concrete = constants.%C.val.12f]
 // CHECK:STDOUT:   %.loc7_16.5: ref %C.607 = temporary %.loc7_16.3, %.loc7_16.4
 // CHECK:STDOUT:   %.loc7_16.6: ref %C.607 = converted %.loc7_16.2, %.loc7_16.5
 // CHECK:STDOUT:   %.loc7_16.7: %C.607 = bind_value %.loc7_16.6
 // CHECK:STDOUT:   %C.as.I.impl.F.call: init %empty_tuple.type = call %C.as.I.impl.F.specific_fn(%.loc7_16.7)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc7_16.5, constants.%C.as.Destroy.impl.Op.8db
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.8db, @C.as.Destroy.impl.Op(constants.%empty_tuple) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.e84]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc7_16.5, constants.%C.as.Destroy.impl.Op.f0b
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f0b, @C.as.Destroy.impl.Op(constants.%empty_tuple) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.3b1]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc7_16.5, %C.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.2ce = addr_of %.loc7_16.5
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5dd: %I.type) [from "a.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.72c: %I.type) [from "a.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -664,22 +664,22 @@ fn G() {
 // CHECK:STDOUT: generic fn @C.as.I.impl.F.2(imports.%Main.import_ref.eb1c17.6: %empty_tuple.type) [from "b.carbon"] {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Y: %empty_tuple.type = bind_symbolic_name Y, 0 [symbolic = %Y (constants.%Y)]
-// CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type (constants.%C.as.I.impl.F.type.0daaa1.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F: @C.as.I.impl.F.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.0daaa1.1) = struct_value () [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.49c1ac.1)]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %C.as.I.impl.F, @C.as.I.impl.F.1(%Y) [symbolic = %C.as.I.impl.F.specific_fn (constants.%C.as.I.impl.F.specific_fn.8d9)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F.1, @C.as.I.impl(%Y) [symbolic = %C.as.I.impl.F.type (constants.%C.as.I.impl.F.type.1cb1f4.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F: @C.as.I.impl.F.2.%C.as.I.impl.F.type (%C.as.I.impl.F.type.1cb1f4.1) = struct_value () [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.7724ef.1)]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %C.as.I.impl.F, @C.as.I.impl.F.1(%Y) [symbolic = %C.as.I.impl.F.specific_fn (constants.%C.as.I.impl.F.specific_fn.320)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Y) [symbolic = %C (constants.%C.13320f.2)]
 // CHECK:STDOUT:   %require_complete.1: <witness> = require_complete_type %C [symbolic = %require_complete.1 (constants.%require_complete.a35)]
 // CHECK:STDOUT:   %C.val: @C.as.I.impl.F.2.%C (%C.13320f.2) = struct_value () [symbolic = %C.val (constants.%C.val.56a)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.c33, @C.as.Destroy.impl(%Y) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.5d03b3.2)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %C, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.6bc)]
-// CHECK:STDOUT:   %.1: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.1 (constants.%.7a8)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.1b919a.2)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.I.impl.F.2.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.1b919a.2) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.65ca93.2)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op, @C.as.Destroy.impl.Op(%Y) [symbolic = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn.c52)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.f5c, @C.as.Destroy.impl(%Y) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.c6895a.2)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %C, (%Destroy.impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.7f9)]
+// CHECK:STDOUT:   %.1: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.1 (constants.%.f83)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Y) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.fd657f.2)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.I.impl.F.2.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.fd657f.2) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.ab5420.2)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op, @C.as.Destroy.impl.Op(%Y) [symbolic = %C.as.Destroy.impl.Op.specific_fn (constants.%C.as.Destroy.impl.Op.specific_fn.7c3)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.40dc71.2)]
 // CHECK:STDOUT:   %require_complete.2: <witness> = require_complete_type %ptr [symbolic = %require_complete.2 (constants.%require_complete.0b0)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn [thunk imports.%Main.F.5a8];
+// CHECK:STDOUT:   fn [thunk imports.%Main.F.aca];
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%X) {
@@ -692,12 +692,12 @@ fn G() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%X) {
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %C => constants.%C.13320f.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5d03b3.1
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c6895a.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%X) {
@@ -716,13 +716,13 @@ fn G() {
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%Y) {
 // CHECK:STDOUT:   %Y => constants.%Y
 // CHECK:STDOUT:   %C => constants.%C.13320f.2
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.7d9
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.ead
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type.1 => constants.%C.as.I.impl.F.type.0daaa1.1
-// CHECK:STDOUT:   %C.as.I.impl.F.1 => constants.%C.as.I.impl.F.49c1ac.1
-// CHECK:STDOUT:   %C.as.I.impl.F.type.2 => constants.%C.as.I.impl.F.type.0daaa1.2
-// CHECK:STDOUT:   %C.as.I.impl.F.2 => constants.%C.as.I.impl.F.49c1ac.2
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1 => constants.%C.as.I.impl.F.type.1cb1f4.1
+// CHECK:STDOUT:   %C.as.I.impl.F.1 => constants.%C.as.I.impl.F.7724ef.1
+// CHECK:STDOUT:   %C.as.I.impl.F.type.2 => constants.%C.as.I.impl.F.type.1cb1f4.2
+// CHECK:STDOUT:   %C.as.I.impl.F.2 => constants.%C.as.I.impl.F.7724ef.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl.F.1(constants.%Y) {
@@ -739,11 +739,11 @@ fn G() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Y) {
 // CHECK:STDOUT:   %X => constants.%Y
 // CHECK:STDOUT:   %C => constants.%C.13320f.2
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5d03b3.2
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c6895a.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.1b919a.2
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.65ca93.2
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.fd657f.2
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.ab5420.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Y) {
@@ -756,30 +756,30 @@ fn G() {
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%empty_tuple) {
 // CHECK:STDOUT:   %Y => constants.%empty_tuple
 // CHECK:STDOUT:   %C => constants.%C.607
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.02b
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.f72
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type.1 => constants.%C.as.I.impl.F.type.af4856.1
-// CHECK:STDOUT:   %C.as.I.impl.F.1 => constants.%C.as.I.impl.F.5fa954.1
-// CHECK:STDOUT:   %C.as.I.impl.F.type.2 => constants.%C.as.I.impl.F.type.af4856.2
-// CHECK:STDOUT:   %C.as.I.impl.F.2 => constants.%C.as.I.impl.F.5fa954.2
+// CHECK:STDOUT:   %C.as.I.impl.F.type.1 => constants.%C.as.I.impl.F.type.76df52.1
+// CHECK:STDOUT:   %C.as.I.impl.F.1 => constants.%C.as.I.impl.F.bc5ddd.1
+// CHECK:STDOUT:   %C.as.I.impl.F.type.2 => constants.%C.as.I.impl.F.type.76df52.2
+// CHECK:STDOUT:   %C.as.I.impl.F.2 => constants.%C.as.I.impl.F.bc5ddd.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl.F.2(constants.%empty_tuple) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Y => constants.%empty_tuple
-// CHECK:STDOUT:   %C.as.I.impl.F.type => constants.%C.as.I.impl.F.type.af4856.1
-// CHECK:STDOUT:   %C.as.I.impl.F => constants.%C.as.I.impl.F.5fa954.1
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn => constants.%C.as.I.impl.F.specific_fn.4832e8.2
+// CHECK:STDOUT:   %C.as.I.impl.F.type => constants.%C.as.I.impl.F.type.76df52.1
+// CHECK:STDOUT:   %C.as.I.impl.F => constants.%C.as.I.impl.F.bc5ddd.1
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn => constants.%C.as.I.impl.F.specific_fn.02feed.2
 // CHECK:STDOUT:   %C => constants.%C.607
 // CHECK:STDOUT:   %require_complete.1 => constants.%complete_type.357
 // CHECK:STDOUT:   %C.val => constants.%C.val.12f
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.867
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.9d1
-// CHECK:STDOUT:   %.1 => constants.%.b0b
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.27f
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.8db
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn => constants.%C.as.Destroy.impl.Op.specific_fn.e84
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.36e
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.5aa
+// CHECK:STDOUT:   %.1 => constants.%.cec
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.be3
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.f0b
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn => constants.%C.as.Destroy.impl.Op.specific_fn.3b1
 // CHECK:STDOUT:   %ptr => constants.%ptr.2ce
 // CHECK:STDOUT:   %require_complete.2 => constants.%complete_type.e2c
 // CHECK:STDOUT: }
@@ -796,11 +796,11 @@ fn G() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%empty_tuple) {
 // CHECK:STDOUT:   %X => constants.%empty_tuple
 // CHECK:STDOUT:   %C => constants.%C.607
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.867
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.36e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.27f
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.8db
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.be3
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.f0b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%empty_tuple) {
diff --git a/toolchain/check/testdata/impl/import_use_generic.carbon b/toolchain/check/testdata/impl/import_use_generic.carbon
index 4849ff180157..30a5accb78a6 100644
--- a/toolchain/check/testdata/impl/import_use_generic.carbon
+++ b/toolchain/check/testdata/impl/import_use_generic.carbon
@@ -199,15 +199,15 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.impl_witness.443: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.40c: type = fn_type @C.as.I.impl.F, @C.as.I.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.I.impl.F.071: %C.as.I.impl.F.type.40c = struct_value () [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.6bb: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.type.4a4: type = fn_type @C.as.I.impl.F, @C.as.I.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.9e6: %C.as.I.impl.F.type.4a4 = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.7a7, (%I.impl_witness.6bb) [concrete]
-// CHECK:STDOUT:   %.81d: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
-// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %C.as.I.impl.F.9e6, @C.as.I.impl.F(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %I.impl_witness.0e4: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.8a5: type = fn_type @C.as.I.impl.F, @C.as.I.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.I.impl.F.3c4: %C.as.I.impl.F.type.8a5 = struct_value () [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.e50: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.type.113: type = fn_type @C.as.I.impl.F, @C.as.I.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.013: %C.as.I.impl.F.type.113 = struct_value () [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.7a7, (%I.impl_witness.e50) [concrete]
+// CHECK:STDOUT:   %.ef6: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %C.as.I.impl.F.specific_fn: <specific function> = specific_function %C.as.I.impl.F.013, @C.as.I.impl.F(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [concrete]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -218,17 +218,17 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//import_generic, loc4_9, loaded [symbolic = @C.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//import_generic, loc4_20, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.4c0 = import_ref Main//import_generic, inst26 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//import_generic, inst32 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//import_generic, inst32 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c44: %I.assoc_type = import_ref Main//import_generic, loc7_9, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Main.F = import_ref Main//import_generic, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.e03: %I.F.type = import_ref Main//import_generic, loc7_9, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//import_generic, inst32 [no loc], loaded [symbolic = constants.%Self]
-// CHECK:STDOUT:   %Main.import_ref.6ac: <witness> = import_ref Main//import_generic, loc10_34, loaded [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness.443)]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//import_generic, inst32 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Main.import_ref.3b0: <witness> = import_ref Main//import_generic, loc10_34, loaded [symbolic = @C.as.I.impl.%I.impl_witness (constants.%I.impl_witness.0e4)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//import_generic, loc10_14, loaded [symbolic = @C.as.I.impl.%T (constants.%T)]
 // CHECK:STDOUT:   %Main.import_ref.499: type = import_ref Main//import_generic, loc10_27, loaded [symbolic = @C.as.I.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:   %Main.import_ref.301: type = import_ref Main//import_generic, loc10_32, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %Main.import_ref.e2c: @C.as.I.impl.%C.as.I.impl.F.type (%C.as.I.impl.F.type.40c) = import_ref Main//import_generic, loc11_10, loaded [symbolic = @C.as.I.impl.%C.as.I.impl.F (constants.%C.as.I.impl.F.071)]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.e2c), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.c83: @C.as.I.impl.%C.as.I.impl.F.type (%C.as.I.impl.F.type.8a5) = import_ref Main//import_generic, loc11_10, loaded [symbolic = @C.as.I.impl.%C.as.I.impl.F (constants.%C.as.I.impl.F.3c4)]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.c83), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//import_generic, loc10_14, loaded [symbolic = @C.as.I.impl.%T (constants.%T)]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -274,9 +274,9 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%empty_struct_type) [concrete = constants.%C.7a7]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:     %F.ref: %I.assoc_type = name_ref F, imports.%Main.import_ref.c44 [concrete = constants.%assoc0]
-// CHECK:STDOUT:     %I.facet: %I.type = facet_value constants.%C.7a7, (constants.%I.impl_witness.6bb) [concrete = constants.%I.facet]
+// CHECK:STDOUT:     %I.facet: %I.type = facet_value constants.%C.7a7, (constants.%I.impl_witness.e50) [concrete = constants.%I.facet]
 // CHECK:STDOUT:     %.loc25_16: %I.type = converted %C, %I.facet [concrete = constants.%I.facet]
-// CHECK:STDOUT:     %impl.elem0: %.81d = impl_witness_access constants.%I.impl_witness.6bb, element0 [concrete = constants.%C.as.I.impl.F.9e6]
+// CHECK:STDOUT:     %impl.elem0: %.ef6 = impl_witness_access constants.%I.impl_witness.e50, element0 [concrete = constants.%C.as.I.impl.F.013]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.I.impl.F(constants.%empty_struct_type) [concrete = constants.%C.as.I.impl.F.specific_fn]
 // CHECK:STDOUT:     %C.as.I.impl.F.call: init %empty_tuple.type = call %specific_fn()
 // CHECK:STDOUT:     %.loc25_23.1: ref %empty_tuple.type = temporary_storage
@@ -289,7 +289,7 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "import_generic.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.c44
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
@@ -297,15 +297,15 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT: generic impl @C.as.I.impl(imports.%Main.import_ref.5ab3ec.2: type) [from "import_generic.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%T) [symbolic = %I.impl_witness (constants.%I.impl_witness.443)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table, @C.as.I.impl(%T) [symbolic = %I.impl_witness (constants.%I.impl_witness.0e4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F, @C.as.I.impl(%T) [symbolic = %C.as.I.impl.F.type (constants.%C.as.I.impl.F.type.40c)]
-// CHECK:STDOUT:   %C.as.I.impl.F: @C.as.I.impl.%C.as.I.impl.F.type (%C.as.I.impl.F.type.40c) = struct_value () [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.071)]
+// CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F, @C.as.I.impl(%T) [symbolic = %C.as.I.impl.F.type (constants.%C.as.I.impl.F.type.8a5)]
+// CHECK:STDOUT:   %C.as.I.impl.F: @C.as.I.impl.%C.as.I.impl.F.type (%C.as.I.impl.F.type.8a5) = struct_value () [symbolic = %C.as.I.impl.F (constants.%C.as.I.impl.F.3c4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: imports.%Main.import_ref.499 as imports.%Main.import_ref.301 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%Main.import_ref.6ac
+// CHECK:STDOUT:     witness = imports.%Main.import_ref.3b0
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -322,7 +322,7 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5dd: %I.type) [from "import_generic.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.72c: %I.type) [from "import_generic.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -364,11 +364,11 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.443
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.0e4
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type => constants.%C.as.I.impl.F.type.40c
-// CHECK:STDOUT:   %C.as.I.impl.F => constants.%C.as.I.impl.F.071
+// CHECK:STDOUT:   %C.as.I.impl.F.type => constants.%C.as.I.impl.F.type.8a5
+// CHECK:STDOUT:   %C.as.I.impl.F => constants.%C.as.I.impl.F.3c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl.F(constants.%T) {}
@@ -376,11 +376,11 @@ fn H() -> C({}).(I.F)() {}
 // CHECK:STDOUT: specific @C.as.I.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T => constants.%empty_struct_type
 // CHECK:STDOUT:   %C => constants.%C.7a7
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.6bb
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.e50
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.I.impl.F.type => constants.%C.as.I.impl.F.type.4a4
-// CHECK:STDOUT:   %C.as.I.impl.F => constants.%C.as.I.impl.F.9e6
+// CHECK:STDOUT:   %C.as.I.impl.F.type => constants.%C.as.I.impl.F.type.113
+// CHECK:STDOUT:   %C.as.I.impl.F => constants.%C.as.I.impl.F.013
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.I.impl.F(constants.%empty_struct_type) {
diff --git a/toolchain/check/testdata/impl/interface_args.carbon b/toolchain/check/testdata/impl/interface_args.carbon
index d201680924b6..5ceaff8923eb 100644
--- a/toolchain/check/testdata/impl/interface_args.carbon
+++ b/toolchain/check/testdata/impl/interface_args.carbon
@@ -115,10 +115,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.96f: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.96f = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.07f: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
-// CHECK:STDOUT:   %Self: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.f40: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
+// CHECK:STDOUT:   %Self: %ImplicitAs.type.f40 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.a93: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %Dest [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert: %ImplicitAs.Convert.type = struct_value () [symbolic]
@@ -142,26 +142,26 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Dest.loc3_22.1: type = bind_symbolic_name Dest, 0 [symbolic = %Dest.loc3_22.1 (constants.%Dest)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest.loc3_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest.loc3_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest.loc3_22.1) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest.loc3_22.1) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc4_35.2: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %ImplicitAs.Convert.decl [symbolic = %assoc0.loc4_35.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %ImplicitAs.Convert.decl: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type) = fn_decl @ImplicitAs.Convert [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert)] {
-// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.a93) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.a93) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.fb9) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.fb9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @ImplicitAs.Convert.%pattern_type.loc4_28 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_28 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %Dest.ref: type = name_ref Dest, @ImplicitAs.%Dest.loc3_22.2 [symbolic = %Dest (constants.%Dest)]
 // CHECK:STDOUT:       %self.param: @ImplicitAs.Convert.%Self.as_type.loc4_20.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc4_20.1: type = splice_block %.loc4_20.3 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc4_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%Dest) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %.loc4_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%Dest) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:         %Self.as_type.loc4_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc4_20.3: type = converted %Self.ref, %Self.as_type.loc4_20.2 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -179,12 +179,12 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%Dest.loc3_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f)) {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%Dest.loc3_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40)) {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc4_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc4_14: type = pattern_type %Self.as_type.loc4_20.1 [symbolic = %pattern_type.loc4_14 (constants.%pattern_type.a93)]
+// CHECK:STDOUT:   %pattern_type.loc4_14: type = pattern_type %Self.as_type.loc4_20.1 [symbolic = %pattern_type.loc4_14 (constants.%pattern_type.fb9)]
 // CHECK:STDOUT:   %pattern_type.loc4_28: type = pattern_type %Dest [symbolic = %pattern_type.loc4_28 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @ImplicitAs.Convert.%Self.as_type.loc4_20.1 (%Self.as_type)) -> @ImplicitAs.Convert.%Dest (%Dest);
@@ -196,10 +196,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self) {
 // CHECK:STDOUT:   %Dest => constants.%Dest
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.07f
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.f40
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc4_20.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.loc4_14 => constants.%pattern_type.a93
+// CHECK:STDOUT:   %pattern_type.loc4_14 => constants.%pattern_type.fb9
 // CHECK:STDOUT:   %pattern_type.loc4_28 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -212,10 +212,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Action.type.29c: type = generic_interface_type @Action [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Action.generic: %Action.type.29c = struct_value () [concrete]
-// CHECK:STDOUT:   %Action.type.cca: type = facet_type <@Action, @Action(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.e98: %Action.type.cca = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.566: type = facet_access_type %Self.e98 [symbolic]
-// CHECK:STDOUT:   %pattern_type.8db: type = pattern_type %Self.as_type.566 [symbolic]
+// CHECK:STDOUT:   %Action.type.517: type = facet_type <@Action, @Action(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.bf8: %Action.type.517 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.cdf: type = facet_access_type %Self.bf8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.fba: type = pattern_type %Self.as_type.cdf [symbolic]
 // CHECK:STDOUT:   %Action.Op.type.036: type = fn_type @Action.Op, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %Action.Op.6ed: %Action.Op.type.036 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Action.assoc_type.32e: type = assoc_entity_type @Action, @Action(%T) [symbolic]
@@ -223,7 +223,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -231,19 +231,19 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Action.type.cb0: type = facet_type <@Action, @Action(%B)> [concrete]
-// CHECK:STDOUT:   %Self.0d1: %Action.type.cb0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Action.type.db7: type = facet_type <@Action, @Action(%B)> [concrete]
+// CHECK:STDOUT:   %Self.861: %Action.type.db7 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Action.Op.type.54d: type = fn_type @Action.Op, @Action(%B) [concrete]
 // CHECK:STDOUT:   %Action.Op.dba: %Action.Op.type.54d = struct_value () [concrete]
 // CHECK:STDOUT:   %Action.assoc_type.4ee: type = assoc_entity_type @Action, @Action(%B) [concrete]
@@ -252,10 +252,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %A.as.Action.impl.Op.type: type = fn_type @A.as.Action.impl.Op [concrete]
 // CHECK:STDOUT:   %A.as.Action.impl.Op: %A.as.Action.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Action.facet: %Action.type.cb0 = facet_value %A, (%Action.impl_witness) [concrete]
+// CHECK:STDOUT:   %Action.facet: %Action.type.db7 = facet_value %A, (%Action.impl_witness) [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.584: type = fn_type_with_self_type %Action.Op.type.54d, %Action.facet [concrete]
+// CHECK:STDOUT:   %.5b5: type = fn_type_with_self_type %Action.Op.type.54d, %Action.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -290,7 +290,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A]
 // CHECK:STDOUT:     %Action.ref: %Action.type.29c = name_ref Action, file.%Action.decl [concrete = constants.%Action.generic]
 // CHECK:STDOUT:     %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B]
-// CHECK:STDOUT:     %Action.type: type = facet_type <@Action, @Action(constants.%B)> [concrete = constants.%Action.type.cb0]
+// CHECK:STDOUT:     %Action.type: type = facet_type <@Action, @Action(constants.%B)> [concrete = constants.%Action.type.db7]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Action.impl_witness_table = impl_witness_table (@A.as.Action.impl.%A.as.Action.impl.Op.decl), @A.as.Action.impl [concrete]
 // CHECK:STDOUT:   %Action.impl_witness: <witness> = impl_witness %Action.impl_witness_table [concrete = constants.%Action.impl_witness]
@@ -308,27 +308,27 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T.loc4_18.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_18.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T.loc4_18.1)> [symbolic = %Action.type (constants.%Action.type.cca)]
-// CHECK:STDOUT:   %Self.2: @Action.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.e98)]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T.loc4_18.1)> [symbolic = %Action.type (constants.%Action.type.517)]
+// CHECK:STDOUT:   %Self.2: @Action.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Action.Op.type: type = fn_type @Action.Op, @Action(%T.loc4_18.1) [symbolic = %Action.Op.type (constants.%Action.Op.type.036)]
 // CHECK:STDOUT:   %Action.Op: @Action.%Action.Op.type (%Action.Op.type.036) = struct_value () [symbolic = %Action.Op (constants.%Action.Op.6ed)]
 // CHECK:STDOUT:   %Action.assoc_type: type = assoc_entity_type @Action, @Action(%T.loc4_18.1) [symbolic = %Action.assoc_type (constants.%Action.assoc_type.32e)]
 // CHECK:STDOUT:   %assoc0.loc5_22.2: @Action.%Action.assoc_type (%Action.assoc_type.32e) = assoc_entity element0, %Action.Op.decl [symbolic = %assoc0.loc5_22.2 (constants.%assoc0.268)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Action.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.e98)]
+// CHECK:STDOUT:     %Self.1: @Action.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.bf8)]
 // CHECK:STDOUT:     %Action.Op.decl: @Action.%Action.Op.type (%Action.Op.type.036) = fn_decl @Action.Op [symbolic = @Action.%Action.Op (constants.%Action.Op.6ed)] {
-// CHECK:STDOUT:       %self.patt: @Action.Op.%pattern_type (%pattern_type.8db) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @Action.Op.%pattern_type (%pattern_type.8db) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @Action.Op.%pattern_type (%pattern_type.fba) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @Action.Op.%pattern_type (%pattern_type.fba) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @Action.Op.%Self.as_type.loc5_15.1 (%Self.as_type.566) = value_param call_param0
-// CHECK:STDOUT:       %.loc5_15.1: type = splice_block %.loc5_15.3 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.566)] {
-// CHECK:STDOUT:         %.loc5_15.2: @Action.Op.%Action.type (%Action.type.cca) = specific_constant @Action.%Self.1, @Action(constants.%T) [symbolic = %Self (constants.%Self.e98)]
-// CHECK:STDOUT:         %Self.ref: @Action.Op.%Action.type (%Action.type.cca) = name_ref Self, %.loc5_15.2 [symbolic = %Self (constants.%Self.e98)]
-// CHECK:STDOUT:         %Self.as_type.loc5_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.566)]
-// CHECK:STDOUT:         %.loc5_15.3: type = converted %Self.ref, %Self.as_type.loc5_15.2 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.566)]
+// CHECK:STDOUT:       %self.param: @Action.Op.%Self.as_type.loc5_15.1 (%Self.as_type.cdf) = value_param call_param0
+// CHECK:STDOUT:       %.loc5_15.1: type = splice_block %.loc5_15.3 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.cdf)] {
+// CHECK:STDOUT:         %.loc5_15.2: @Action.Op.%Action.type (%Action.type.517) = specific_constant @Action.%Self.1, @Action(constants.%T) [symbolic = %Self (constants.%Self.bf8)]
+// CHECK:STDOUT:         %Self.ref: @Action.Op.%Action.type (%Action.type.517) = name_ref Self, %.loc5_15.2 [symbolic = %Self (constants.%Self.bf8)]
+// CHECK:STDOUT:         %Self.as_type.loc5_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.cdf)]
+// CHECK:STDOUT:         %.loc5_15.3: type = converted %Self.ref, %Self.as_type.loc5_15.2 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.cdf)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @Action.Op.%Self.as_type.loc5_15.1 (%Self.as_type.566) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @Action.Op.%Self.as_type.loc5_15.1 (%Self.as_type.cdf) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %assoc0.loc5_22.1: @Action.%Action.assoc_type (%Action.assoc_type.32e) = assoc_entity element0, %Action.Op.decl [symbolic = %assoc0.loc5_22.2 (constants.%assoc0.268)]
 // CHECK:STDOUT:
@@ -406,7 +406,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -418,7 +418,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -430,7 +430,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -438,14 +438,14 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   .Self = constants.%C
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Action.Op(@Action.%T.loc4_18.2: type, @Action.%Self.1: @Action.%Action.type (%Action.type.cca)) {
+// CHECK:STDOUT: generic fn @Action.Op(@Action.%T.loc4_18.2: type, @Action.%Self.1: @Action.%Action.type (%Action.type.517)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.cca)]
-// CHECK:STDOUT:   %Self: @Action.Op.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.e98)]
-// CHECK:STDOUT:   %Self.as_type.loc5_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.566)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type (constants.%pattern_type.8db)]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.517)]
+// CHECK:STDOUT:   %Self: @Action.Op.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.bf8)]
+// CHECK:STDOUT:   %Self.as_type.loc5_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type.cdf)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type (constants.%pattern_type.fba)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Action.Op.%Self.as_type.loc5_15.1 (%Self.as_type.566));
+// CHECK:STDOUT:   fn(%self.param: @Action.Op.%Self.as_type.loc5_15.1 (%Self.as_type.cdf));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @A.as.Destroy.impl.Op(%self.param: %ptr.6db) = "no_op";
@@ -464,10 +464,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %a.ref: %A = name_ref a, %a
 // CHECK:STDOUT:   %Action.ref: %Action.type.29c = name_ref Action, file.%Action.decl [concrete = constants.%Action.generic]
 // CHECK:STDOUT:   %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B]
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(constants.%B)> [concrete = constants.%Action.type.cb0]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(constants.%B)> [concrete = constants.%Action.type.db7]
 // CHECK:STDOUT:   %.loc16: %Action.assoc_type.4ee = specific_constant @Action.%assoc0.loc5_22.1, @Action(constants.%B) [concrete = constants.%assoc0.f3b]
 // CHECK:STDOUT:   %Op.ref: %Action.assoc_type.4ee = name_ref Op, %.loc16 [concrete = constants.%assoc0.f3b]
-// CHECK:STDOUT:   %impl.elem0: %.584 = impl_witness_access constants.%Action.impl_witness, element0 [concrete = constants.%A.as.Action.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.5b5 = impl_witness_access constants.%Action.impl_witness, element0 [concrete = constants.%A.as.Action.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %A.as.Action.impl.Op.call: init %empty_tuple.type = call %bound_method(%a.ref)
 // CHECK:STDOUT:   return
@@ -477,20 +477,20 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T.loc4_18.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Action.Op(constants.%T, constants.%Self.e98) {
+// CHECK:STDOUT: specific @Action.Op(constants.%T, constants.%Self.bf8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cca
-// CHECK:STDOUT:   %Self => constants.%Self.e98
-// CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%Self.as_type.566
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8db
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.517
+// CHECK:STDOUT:   %Self => constants.%Self.bf8
+// CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%Self.as_type.cdf
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.fba
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Action(constants.%B) {
 // CHECK:STDOUT:   %T.loc4_18.1 => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cb0
-// CHECK:STDOUT:   %Self.2 => constants.%Self.0d1
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.db7
+// CHECK:STDOUT:   %Self.2 => constants.%Self.861
 // CHECK:STDOUT:   %Action.Op.type => constants.%Action.Op.type.54d
 // CHECK:STDOUT:   %Action.Op => constants.%Action.Op.dba
 // CHECK:STDOUT:   %Action.assoc_type => constants.%Action.assoc_type.4ee
@@ -499,7 +499,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Action.Op(constants.%B, constants.%Action.facet) {
 // CHECK:STDOUT:   %T => constants.%B
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cb0
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.db7
 // CHECK:STDOUT:   %Self => constants.%Action.facet
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%A
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c10
@@ -518,16 +518,16 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Action.generic: %Action.type.29c = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Action.type.cca: type = facet_type <@Action, @Action(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.e98: %Action.type.cca = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Action.type.cb0: type = facet_type <@Action, @Action(%B)> [concrete]
+// CHECK:STDOUT:   %Action.type.517: type = facet_type <@Action, @Action(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.bf8: %Action.type.517 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Action.type.db7: type = facet_type <@Action, @Action(%B)> [concrete]
 // CHECK:STDOUT:   %Action.Op.type.036: type = fn_type @Action.Op, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %Action.Op.6ed: %Action.Op.type.036 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.e98 [symbolic]
-// CHECK:STDOUT:   %pattern_type.8db: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.bf8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.fba: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Action.assoc_type.32e: type = assoc_entity_type @Action, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.f18741.1: %Action.assoc_type.32e = assoc_entity element0, imports.%Main.import_ref.0e3753.1 [symbolic]
-// CHECK:STDOUT:   %Self.0d1: %Action.type.cb0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.861: %Action.type.db7 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Action.Op.type.54d: type = fn_type @Action.Op, @Action(%B) [concrete]
 // CHECK:STDOUT:   %Action.Op.dba: %Action.Op.type.54d = struct_value () [concrete]
 // CHECK:STDOUT:   %Action.assoc_type.4ee: type = assoc_entity_type @Action, @Action(%B) [concrete]
@@ -537,8 +537,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc0.f18741.2: %Action.assoc_type.32e = assoc_entity element0, imports.%Main.import_ref.0e3753.2 [symbolic]
 // CHECK:STDOUT:   %Action.impl_witness: <witness> = impl_witness imports.%Action.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Action.facet: %Action.type.cb0 = facet_value %A, (%Action.impl_witness) [concrete]
-// CHECK:STDOUT:   %.6c7: type = fn_type_with_self_type %Action.Op.type.54d, %Action.facet [concrete]
+// CHECK:STDOUT:   %Action.facet: %Action.type.db7 = facet_value %A, (%Action.impl_witness) [concrete]
+// CHECK:STDOUT:   %.a58: type = fn_type_with_self_type %Action.Op.type.54d, %Action.facet [concrete]
 // CHECK:STDOUT:   %A.as.Action.impl.Op.type: type = fn_type @A.as.Action.impl.Op [concrete]
 // CHECK:STDOUT:   %A.as.Action.impl.Op: %A.as.Action.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -553,39 +553,39 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.7b0 = import_ref Main//action, loc8_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.b40 = import_ref Main//action, loc8_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//action, loc8_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.da3 = import_ref Main//action, inst60 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e1c: type = import_ref Main//action, loc8_9, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.2d5 = import_ref Main//action, loc8_9, unloaded
-// CHECK:STDOUT:   %Main.import_ref.ae7 = import_ref Main//action, loc9_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.807 = import_ref Main//action, loc8_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.7a0 = import_ref Main//action, loc9_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//action, loc9_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.54a = import_ref Main//action, inst104 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.0e2: type = import_ref Main//action, loc9_9, loaded [concrete = constants.%B]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.fc3 = import_ref Main//action, loc9_9, unloaded
-// CHECK:STDOUT:   %Main.import_ref.34c = import_ref Main//action, loc10_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.96b = import_ref Main//action, loc9_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.541 = import_ref Main//action, loc10_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.3: <witness> = import_ref Main//action, loc10_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.2c4 = import_ref Main//action, inst124 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.0ed: type = import_ref Main//action, loc10_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.3: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.b3d = import_ref Main//action, loc10_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.3: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.99a = import_ref Main//action, loc10_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//action, loc4_18, loaded [symbolic = @Action.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.ddc = import_ref Main//action, inst29 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.75a = import_ref Main//action, inst29 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c55: @Action.%Action.assoc_type (%Action.assoc_type.32e) = import_ref Main//action, loc5_22, loaded [symbolic = @Action.%assoc0 (constants.%assoc0.f18741.2)]
 // CHECK:STDOUT:   %Main.Op.ae2 = import_ref Main//action, Op, unloaded
-// CHECK:STDOUT:   %Main.import_ref.995: <witness> = import_ref Main//action, loc12_21, loaded [concrete = constants.%Action.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.188: <witness> = import_ref Main//action, loc12_21, loaded [concrete = constants.%Action.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.984: type = import_ref Main//action, loc12_6, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.bb2: type = import_ref Main//action, loc12_19, loaded [concrete = constants.%Action.type.cb0]
-// CHECK:STDOUT:   %Main.import_ref.7b5 = import_ref Main//action, loc13_23, unloaded
+// CHECK:STDOUT:   %Main.import_ref.3a6: type = import_ref Main//action, loc12_19, loaded [concrete = constants.%Action.type.db7]
+// CHECK:STDOUT:   %Main.import_ref.697 = import_ref Main//action, loc13_23, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//action, loc4_18, loaded [symbolic = @Action.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.835: @Action.%Action.type (%Action.type.cca) = import_ref Main//action, inst29 [no loc], loaded [symbolic = @Action.%Self (constants.%Self.e98)]
+// CHECK:STDOUT:   %Main.import_ref.22a: @Action.%Action.type (%Action.type.517) = import_ref Main//action, inst29 [no loc], loaded [symbolic = @Action.%Self (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Main.import_ref.0e3753.1 = import_ref Main//action, loc5_22, unloaded
 // CHECK:STDOUT:   %Main.import_ref.1f6: @Action.%Action.Op.type (%Action.Op.type.036) = import_ref Main//action, loc5_22, loaded [symbolic = @Action.%Action.Op (constants.%Action.Op.6ed)]
 // CHECK:STDOUT:   %Main.import_ref.0e3753.2 = import_ref Main//action, loc5_22, unloaded
-// CHECK:STDOUT:   %Main.import_ref.d0b: %A.as.Action.impl.Op.type = import_ref Main//action, loc13_23, loaded [concrete = constants.%A.as.Action.impl.Op]
-// CHECK:STDOUT:   %Action.impl_witness_table = impl_witness_table (%Main.import_ref.d0b), @A.as.Action.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.57c: %A.as.Action.impl.Op.type = import_ref Main//action, loc13_23, loaded [concrete = constants.%A.as.Action.impl.Op]
+// CHECK:STDOUT:   %Action.impl_witness_table = impl_witness_table (%Main.import_ref.57c), @A.as.Action.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -615,8 +615,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.cca)]
-// CHECK:STDOUT:   %Self: @Action.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.e98)]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.517)]
+// CHECK:STDOUT:   %Self: @Action.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Action.Op.type: type = fn_type @Action.Op, @Action(%T) [symbolic = %Action.Op.type (constants.%Action.Op.type.036)]
 // CHECK:STDOUT:   %Action.Op: @Action.%Action.Op.type (%Action.Op.type.036) = struct_value () [symbolic = %Action.Op (constants.%Action.Op.6ed)]
 // CHECK:STDOUT:   %Action.assoc_type: type = assoc_entity_type @Action, @Action(%T) [symbolic = %Action.assoc_type (constants.%Action.assoc_type.32e)]
@@ -624,34 +624,34 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.ddc
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.75a
 // CHECK:STDOUT:     .Op = imports.%Main.import_ref.c55
 // CHECK:STDOUT:     witness = (imports.%Main.Op.ae2)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.cb9298.1 [from "action.carbon"] {
+// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.063034.1 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.2d5
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.7b0
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.807
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.b40
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.cb9298.2 [from "action.carbon"] {
+// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.063034.2 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.fc3
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.ae7
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.96b
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.7a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.cb9298.3 [from "action.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.063034.3 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.b3d
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.34c
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.99a
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Action.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.bb2 [from "action.carbon"] {
+// CHECK:STDOUT: impl @A.as.Action.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.3a6 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.7b5
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.995
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.697
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.188
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @A [from "action.carbon"] {
@@ -675,12 +675,12 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   .Self = imports.%Main.import_ref.2c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Action.Op(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.835: @Action.%Action.type (%Action.type.cca)) [from "action.carbon"] {
+// CHECK:STDOUT: generic fn @Action.Op(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.22a: @Action.%Action.type (%Action.type.517)) [from "action.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.cca)]
-// CHECK:STDOUT:   %Self: @Action.Op.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.e98)]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.517)]
+// CHECK:STDOUT:   %Self: @Action.Op.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.8db)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.fba)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -690,10 +690,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %a.ref: %A = name_ref a, %a
 // CHECK:STDOUT:   %Action.ref: %Action.type.29c = name_ref Action, imports.%Main.Action [concrete = constants.%Action.generic]
 // CHECK:STDOUT:   %B.ref: type = name_ref B, imports.%Main.B [concrete = constants.%B]
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(constants.%B)> [concrete = constants.%Action.type.cb0]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(constants.%B)> [concrete = constants.%Action.type.db7]
 // CHECK:STDOUT:   %.loc4: %Action.assoc_type.4ee = specific_constant imports.%Main.import_ref.c55, @Action(constants.%B) [concrete = constants.%assoc0.8a8]
 // CHECK:STDOUT:   %Op.ref: %Action.assoc_type.4ee = name_ref Op, %.loc4 [concrete = constants.%assoc0.8a8]
-// CHECK:STDOUT:   %impl.elem0: %.6c7 = impl_witness_access constants.%Action.impl_witness, element0 [concrete = constants.%A.as.Action.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.a58 = impl_witness_access constants.%Action.impl_witness, element0 [concrete = constants.%A.as.Action.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %A.as.Action.impl.Op.call: init %empty_tuple.type = call %bound_method(%a.ref)
 // CHECK:STDOUT:   return
@@ -709,20 +709,20 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cb0
-// CHECK:STDOUT:   %Self => constants.%Self.0d1
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.db7
+// CHECK:STDOUT:   %Self => constants.%Self.861
 // CHECK:STDOUT:   %Action.Op.type => constants.%Action.Op.type.54d
 // CHECK:STDOUT:   %Action.Op => constants.%Action.Op.dba
 // CHECK:STDOUT:   %Action.assoc_type => constants.%Action.assoc_type.4ee
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.8a8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Action.Op(constants.%T, constants.%Self.e98) {
+// CHECK:STDOUT: specific @Action.Op(constants.%T, constants.%Self.bf8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cca
-// CHECK:STDOUT:   %Self => constants.%Self.e98
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.517
+// CHECK:STDOUT:   %Self => constants.%Self.bf8
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8db
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.fba
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_action.impl.carbon
@@ -737,16 +737,16 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Action.type.29c: type = generic_interface_type @Action [concrete]
 // CHECK:STDOUT:   %Action.generic: %Action.type.29c = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Action.type.cca: type = facet_type <@Action, @Action(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.e98: %Action.type.cca = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Action.type.cb0: type = facet_type <@Action, @Action(%B)> [concrete]
+// CHECK:STDOUT:   %Action.type.517: type = facet_type <@Action, @Action(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.bf8: %Action.type.517 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Action.type.db7: type = facet_type <@Action, @Action(%B)> [concrete]
 // CHECK:STDOUT:   %Action.Op.type.036: type = fn_type @Action.Op, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %Action.Op.6ed: %Action.Op.type.036 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.e98 [symbolic]
-// CHECK:STDOUT:   %pattern_type.8db: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.bf8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.fba: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Action.assoc_type.32e: type = assoc_entity_type @Action, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.326: %Action.assoc_type.32e = assoc_entity element0, imports.%Main.import_ref.1f6 [symbolic]
-// CHECK:STDOUT:   %Self.0d1: %Action.type.cb0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.861: %Action.type.db7 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Action.Op.type.54d: type = fn_type @Action.Op, @Action(%B) [concrete]
 // CHECK:STDOUT:   %Action.Op.dba: %Action.Op.type.54d = struct_value () [concrete]
 // CHECK:STDOUT:   %Action.assoc_type.4ee: type = assoc_entity_type @Action, @Action(%B) [concrete]
@@ -754,8 +754,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Action.type.e2b: type = facet_type <@Action, @Action(%C)> [concrete]
-// CHECK:STDOUT:   %Self.4bb: %Action.type.e2b = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Action.type.bec: type = facet_type <@Action, @Action(%C)> [concrete]
+// CHECK:STDOUT:   %Self.f6b: %Action.type.bec = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Action.Op.type.5ad: type = fn_type @Action.Op, @Action(%C) [concrete]
 // CHECK:STDOUT:   %Action.Op.b10: %Action.Op.type.5ad = struct_value () [concrete]
 // CHECK:STDOUT:   %Action.assoc_type.79f: type = assoc_entity_type @Action, @Action(%C) [concrete]
@@ -773,34 +773,34 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.7b0 = import_ref Main//action, loc8_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.b40 = import_ref Main//action, loc8_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//action, loc8_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.da3 = import_ref Main//action, inst60 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e1c: type = import_ref Main//action, loc8_9, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.2d5 = import_ref Main//action, loc8_9, unloaded
-// CHECK:STDOUT:   %Main.import_ref.ae7 = import_ref Main//action, loc9_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.807 = import_ref Main//action, loc8_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.7a0 = import_ref Main//action, loc9_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//action, loc9_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.54a = import_ref Main//action, inst104 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.0e2: type = import_ref Main//action, loc9_9, loaded [concrete = constants.%B]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.fc3 = import_ref Main//action, loc9_9, unloaded
-// CHECK:STDOUT:   %Main.import_ref.34c = import_ref Main//action, loc10_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.96b = import_ref Main//action, loc9_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.541 = import_ref Main//action, loc10_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.3: <witness> = import_ref Main//action, loc10_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.2c4 = import_ref Main//action, inst124 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.0ed: type = import_ref Main//action, loc10_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.3: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.b3d = import_ref Main//action, loc10_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.3: type = import_ref Main//action, inst63 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.99a = import_ref Main//action, loc10_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//action, loc4_18, loaded [symbolic = @Action.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.ddc = import_ref Main//action, inst29 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.75a = import_ref Main//action, inst29 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c55: @Action.%Action.assoc_type (%Action.assoc_type.32e) = import_ref Main//action, loc5_22, loaded [symbolic = @Action.%assoc0 (constants.%assoc0.f18)]
 // CHECK:STDOUT:   %Main.Op.ae2 = import_ref Main//action, Op, unloaded
-// CHECK:STDOUT:   %Main.import_ref.19c = import_ref Main//action, loc12_21, unloaded
+// CHECK:STDOUT:   %Main.import_ref.d1d = import_ref Main//action, loc12_21, unloaded
 // CHECK:STDOUT:   %Main.import_ref.984: type = import_ref Main//action, loc12_6, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.bb2: type = import_ref Main//action, loc12_19, loaded [concrete = constants.%Action.type.cb0]
-// CHECK:STDOUT:   %Main.import_ref.7b5 = import_ref Main//action, loc13_23, unloaded
+// CHECK:STDOUT:   %Main.import_ref.3a6: type = import_ref Main//action, loc12_19, loaded [concrete = constants.%Action.type.db7]
+// CHECK:STDOUT:   %Main.import_ref.697 = import_ref Main//action, loc13_23, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//action, loc4_18, loaded [symbolic = @Action.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.835: @Action.%Action.type (%Action.type.cca) = import_ref Main//action, inst29 [no loc], loaded [symbolic = @Action.%Self (constants.%Self.e98)]
+// CHECK:STDOUT:   %Main.import_ref.22a: @Action.%Action.type (%Action.type.517) = import_ref Main//action, inst29 [no loc], loaded [symbolic = @Action.%Self (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Main.import_ref.1f6: @Action.%Action.Op.type (%Action.Op.type.036) = import_ref Main//action, loc5_22, loaded [symbolic = @Action.%Action.Op (constants.%Action.Op.6ed)]
 // CHECK:STDOUT:   %Main.import_ref.0e3753.1 = import_ref Main//action, loc5_22, unloaded
 // CHECK:STDOUT:   %Main.import_ref.0e3753.2 = import_ref Main//action, loc5_22, unloaded
@@ -833,8 +833,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.cca)]
-// CHECK:STDOUT:   %Self: @Action.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.e98)]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.517)]
+// CHECK:STDOUT:   %Self: @Action.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Action.Op.type: type = fn_type @Action.Op, @Action(%T) [symbolic = %Action.Op.type (constants.%Action.Op.type.036)]
 // CHECK:STDOUT:   %Action.Op: @Action.%Action.Op.type (%Action.Op.type.036) = struct_value () [symbolic = %Action.Op (constants.%Action.Op.6ed)]
 // CHECK:STDOUT:   %Action.assoc_type: type = assoc_entity_type @Action, @Action(%T) [symbolic = %Action.assoc_type (constants.%Action.assoc_type.32e)]
@@ -842,34 +842,34 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.ddc
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.75a
 // CHECK:STDOUT:     .Op = imports.%Main.import_ref.c55
 // CHECK:STDOUT:     witness = (imports.%Main.Op.ae2)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.cb9298.1 [from "action.carbon"] {
+// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.063034.1 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.2d5
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.7b0
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.807
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.b40
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.cb9298.2 [from "action.carbon"] {
+// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.063034.2 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.fc3
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.ae7
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.96b
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.7a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.cb9298.3 [from "action.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.063034.3 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.b3d
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.34c
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.99a
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Action.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.bb2 [from "action.carbon"] {
+// CHECK:STDOUT: impl @A.as.Action.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.3a6 [from "action.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.7b5
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.19c
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.697
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.d1d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @A [from "action.carbon"] {
@@ -893,12 +893,12 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   .Self = imports.%Main.import_ref.2c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Action.Op(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.835: @Action.%Action.type (%Action.type.cca)) [from "action.carbon"] {
+// CHECK:STDOUT: generic fn @Action.Op(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.22a: @Action.%Action.type (%Action.type.517)) [from "action.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.cca)]
-// CHECK:STDOUT:   %Self: @Action.Op.%Action.type (%Action.type.cca) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.e98)]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(%T)> [symbolic = %Action.type (constants.%Action.type.517)]
+// CHECK:STDOUT:   %Self: @Action.Op.%Action.type (%Action.type.517) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.bf8)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.8db)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.fba)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -908,7 +908,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %a.ref: %A = name_ref a, %a
 // CHECK:STDOUT:   %Action.ref: %Action.type.29c = name_ref Action, imports.%Main.Action [concrete = constants.%Action.generic]
 // CHECK:STDOUT:   %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C]
-// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(constants.%C)> [concrete = constants.%Action.type.e2b]
+// CHECK:STDOUT:   %Action.type: type = facet_type <@Action, @Action(constants.%C)> [concrete = constants.%Action.type.bec]
 // CHECK:STDOUT:   %.loc8: %Action.assoc_type.79f = specific_constant imports.%Main.import_ref.c55, @Action(constants.%C) [concrete = constants.%assoc0.37d]
 // CHECK:STDOUT:   %Op.ref: %Action.assoc_type.79f = name_ref Op, %.loc8 [concrete = constants.%assoc0.37d]
 // CHECK:STDOUT:   return
@@ -922,28 +922,28 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cb0
-// CHECK:STDOUT:   %Self => constants.%Self.0d1
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.db7
+// CHECK:STDOUT:   %Self => constants.%Self.861
 // CHECK:STDOUT:   %Action.Op.type => constants.%Action.Op.type.54d
 // CHECK:STDOUT:   %Action.Op => constants.%Action.Op.dba
 // CHECK:STDOUT:   %Action.assoc_type => constants.%Action.assoc_type.4ee
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.338
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Action.Op(constants.%T, constants.%Self.e98) {
+// CHECK:STDOUT: specific @Action.Op(constants.%T, constants.%Self.bf8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.cca
-// CHECK:STDOUT:   %Self => constants.%Self.e98
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.517
+// CHECK:STDOUT:   %Self => constants.%Self.bf8
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8db
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.fba
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Action(constants.%C) {
 // CHECK:STDOUT:   %T => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Action.type => constants.%Action.type.e2b
-// CHECK:STDOUT:   %Self => constants.%Self.4bb
+// CHECK:STDOUT:   %Action.type => constants.%Action.type.bec
+// CHECK:STDOUT:   %Self => constants.%Self.f6b
 // CHECK:STDOUT:   %Action.Op.type => constants.%Action.Op.type.5ad
 // CHECK:STDOUT:   %Action.Op => constants.%Action.Op.b10
 // CHECK:STDOUT:   %Action.assoc_type => constants.%Action.assoc_type.79f
@@ -958,22 +958,22 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Factory.type.1a8: type = generic_interface_type @Factory [concrete]
 // CHECK:STDOUT:   %Factory.generic: %Factory.type.1a8 = struct_value () [concrete]
-// CHECK:STDOUT:   %Factory.type.c96: type = facet_type <@Factory, @Factory(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.9ba: %Factory.type.c96 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Factory.type.f0a: type = facet_type <@Factory, @Factory(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.d6e: %Factory.type.f0a = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %Factory.Make.type.598: type = fn_type @Factory.Make, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Factory.Make.737: %Factory.Make.type.598 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Factory.assoc_type.207: type = assoc_entity_type @Factory, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.b3c: %Factory.assoc_type.207 = assoc_entity element0, @Factory.%Factory.Make.decl [symbolic]
-// CHECK:STDOUT:   %Self.as_type.56c: type = facet_access_type %Self.9ba [symbolic]
-// CHECK:STDOUT:   %pattern_type.5ea: type = pattern_type %Self.as_type.56c [symbolic]
+// CHECK:STDOUT:   %Self.as_type.487: type = facet_access_type %Self.d6e [symbolic]
+// CHECK:STDOUT:   %pattern_type.7fe: type = pattern_type %Self.as_type.487 [symbolic]
 // CHECK:STDOUT:   %Factory.Method.type.7ee: type = fn_type @Factory.Method, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Factory.Method.a71: %Factory.Method.type.7ee = struct_value () [symbolic]
 // CHECK:STDOUT:   %assoc1.e30: %Factory.assoc_type.207 = assoc_entity element1, @Factory.%Factory.Method.decl [symbolic]
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -981,13 +981,13 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op: %B.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Factory.type.a5d: type = facet_type <@Factory, @Factory(%B)> [concrete]
-// CHECK:STDOUT:   %Self.187: %Factory.type.a5d = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Factory.type.3cb: type = facet_type <@Factory, @Factory(%B)> [concrete]
+// CHECK:STDOUT:   %Self.5a6: %Factory.type.3cb = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Factory.Make.type.c59: type = fn_type @Factory.Make, @Factory(%B) [concrete]
 // CHECK:STDOUT:   %Factory.Make.efe: %Factory.Make.type.c59 = struct_value () [concrete]
 // CHECK:STDOUT:   %Factory.assoc_type.579: type = assoc_entity_type @Factory, @Factory(%B) [concrete]
@@ -1002,7 +1002,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %A.as.Factory.impl.Method.type: type = fn_type @A.as.Factory.impl.Method [concrete]
 // CHECK:STDOUT:   %A.as.Factory.impl.Method: %A.as.Factory.impl.Method.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Factory.facet: %Factory.type.a5d = facet_value %A, (%Factory.impl_witness) [concrete]
+// CHECK:STDOUT:   %Factory.facet: %Factory.type.3cb = facet_value %A, (%Factory.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1034,7 +1034,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A]
 // CHECK:STDOUT:     %Factory.ref: %Factory.type.1a8 = name_ref Factory, file.%Factory.decl [concrete = constants.%Factory.generic]
 // CHECK:STDOUT:     %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B]
-// CHECK:STDOUT:     %Factory.type: type = facet_type <@Factory, @Factory(constants.%B)> [concrete = constants.%Factory.type.a5d]
+// CHECK:STDOUT:     %Factory.type: type = facet_type <@Factory, @Factory(constants.%B)> [concrete = constants.%Factory.type.3cb]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Factory.impl_witness_table = impl_witness_table (@A.as.Factory.impl.%A.as.Factory.impl.Make.decl, @A.as.Factory.impl.%A.as.Factory.impl.Method.decl), @A.as.Factory.impl [concrete]
 // CHECK:STDOUT:   %Factory.impl_witness: <witness> = impl_witness %Factory.impl_witness_table [concrete = constants.%Factory.impl_witness]
@@ -1044,8 +1044,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T.loc4_19.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_19.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T.loc4_19.1)> [symbolic = %Factory.type (constants.%Factory.type.c96)]
-// CHECK:STDOUT:   %Self.2: @Factory.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T.loc4_19.1)> [symbolic = %Factory.type (constants.%Factory.type.f0a)]
+// CHECK:STDOUT:   %Self.2: @Factory.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Factory.Make.type: type = fn_type @Factory.Make, @Factory(%T.loc4_19.1) [symbolic = %Factory.Make.type (constants.%Factory.Make.type.598)]
 // CHECK:STDOUT:   %Factory.Make: @Factory.%Factory.Make.type (%Factory.Make.type.598) = struct_value () [symbolic = %Factory.Make (constants.%Factory.Make.737)]
 // CHECK:STDOUT:   %Factory.assoc_type: type = assoc_entity_type @Factory, @Factory(%T.loc4_19.1) [symbolic = %Factory.assoc_type (constants.%Factory.assoc_type.207)]
@@ -1055,7 +1055,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %assoc1.loc8_31.2: @Factory.%Factory.assoc_type (%Factory.assoc_type.207) = assoc_entity element1, %Factory.Method.decl [symbolic = %assoc1.loc8_31.2 (constants.%assoc1.e30)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Factory.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.9ba)]
+// CHECK:STDOUT:     %Self.1: @Factory.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.d6e)]
 // CHECK:STDOUT:     %Factory.Make.decl: @Factory.%Factory.Make.type (%Factory.Make.type.598) = fn_decl @Factory.Make [symbolic = @Factory.%Factory.Make (constants.%Factory.Make.737)] {
 // CHECK:STDOUT:       %return.patt: @Factory.Make.%pattern_type (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @Factory.Make.%pattern_type (%pattern_type.7dc) = out_param_pattern %return.patt, call_param0 [concrete]
@@ -1066,20 +1066,20 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %assoc0.loc6_17.1: @Factory.%Factory.assoc_type (%Factory.assoc_type.207) = assoc_entity element0, %Factory.Make.decl [symbolic = %assoc0.loc6_17.2 (constants.%assoc0.b3c)]
 // CHECK:STDOUT:     %Factory.Method.decl: @Factory.%Factory.Method.type (%Factory.Method.type.7ee) = fn_decl @Factory.Method [symbolic = @Factory.%Factory.Method (constants.%Factory.Method.a71)] {
-// CHECK:STDOUT:       %self.patt: @Factory.Method.%pattern_type.loc8_13 (%pattern_type.5ea) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @Factory.Method.%pattern_type.loc8_13 (%pattern_type.5ea) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @Factory.Method.%pattern_type.loc8_13 (%pattern_type.7fe) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @Factory.Method.%pattern_type.loc8_13 (%pattern_type.7fe) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @Factory.Method.%pattern_type.loc8_27 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @Factory.Method.%pattern_type.loc8_27 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @Factory.%T.loc4_19.2 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:       %self.param: @Factory.Method.%Self.as_type.loc8_19.1 (%Self.as_type.56c) = value_param call_param0
-// CHECK:STDOUT:       %.loc8_19.1: type = splice_block %.loc8_19.3 [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.56c)] {
-// CHECK:STDOUT:         %.loc8_19.2: @Factory.Method.%Factory.type (%Factory.type.c96) = specific_constant @Factory.%Self.1, @Factory(constants.%T) [symbolic = %Self (constants.%Self.9ba)]
-// CHECK:STDOUT:         %Self.ref: @Factory.Method.%Factory.type (%Factory.type.c96) = name_ref Self, %.loc8_19.2 [symbolic = %Self (constants.%Self.9ba)]
-// CHECK:STDOUT:         %Self.as_type.loc8_19.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.56c)]
-// CHECK:STDOUT:         %.loc8_19.3: type = converted %Self.ref, %Self.as_type.loc8_19.2 [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.56c)]
+// CHECK:STDOUT:       %self.param: @Factory.Method.%Self.as_type.loc8_19.1 (%Self.as_type.487) = value_param call_param0
+// CHECK:STDOUT:       %.loc8_19.1: type = splice_block %.loc8_19.3 [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.487)] {
+// CHECK:STDOUT:         %.loc8_19.2: @Factory.Method.%Factory.type (%Factory.type.f0a) = specific_constant @Factory.%Self.1, @Factory(constants.%T) [symbolic = %Self (constants.%Self.d6e)]
+// CHECK:STDOUT:         %Self.ref: @Factory.Method.%Factory.type (%Factory.type.f0a) = name_ref Self, %.loc8_19.2 [symbolic = %Self (constants.%Self.d6e)]
+// CHECK:STDOUT:         %Self.as_type.loc8_19.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.487)]
+// CHECK:STDOUT:         %.loc8_19.3: type = converted %Self.ref, %Self.as_type.loc8_19.2 [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.487)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @Factory.Method.%Self.as_type.loc8_19.1 (%Self.as_type.56c) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @Factory.Method.%Self.as_type.loc8_19.1 (%Self.as_type.487) = bind_name self, %self.param
 // CHECK:STDOUT:       %return.param: ref @Factory.Method.%T (%T) = out_param call_param1
 // CHECK:STDOUT:       %return: ref @Factory.Method.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
@@ -1160,7 +1160,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1172,7 +1172,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1180,22 +1180,22 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   .Self = constants.%B
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Factory.Make(@Factory.%T.loc4_19.2: type, @Factory.%Self.1: @Factory.%Factory.type (%Factory.type.c96)) {
+// CHECK:STDOUT: generic fn @Factory.Make(@Factory.%T.loc4_19.2: type, @Factory.%Self.1: @Factory.%Factory.type (%Factory.type.f0a)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T [symbolic = %pattern_type (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> @Factory.Make.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Factory.Method(@Factory.%T.loc4_19.2: type, @Factory.%Self.1: @Factory.%Factory.type (%Factory.type.c96)) {
+// CHECK:STDOUT: generic fn @Factory.Method(@Factory.%T.loc4_19.2: type, @Factory.%Self.1: @Factory.%Factory.type (%Factory.type.f0a)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.c96)]
-// CHECK:STDOUT:   %Self: @Factory.Method.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.9ba)]
-// CHECK:STDOUT:   %Self.as_type.loc8_19.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.56c)]
-// CHECK:STDOUT:   %pattern_type.loc8_13: type = pattern_type %Self.as_type.loc8_19.1 [symbolic = %pattern_type.loc8_13 (constants.%pattern_type.5ea)]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.f0a)]
+// CHECK:STDOUT:   %Self: @Factory.Method.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.d6e)]
+// CHECK:STDOUT:   %Self.as_type.loc8_19.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_19.1 (constants.%Self.as_type.487)]
+// CHECK:STDOUT:   %pattern_type.loc8_13: type = pattern_type %Self.as_type.loc8_19.1 [symbolic = %pattern_type.loc8_13 (constants.%pattern_type.7fe)]
 // CHECK:STDOUT:   %pattern_type.loc8_27: type = pattern_type %T [symbolic = %pattern_type.loc8_27 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Factory.Method.%Self.as_type.loc8_19.1 (%Self.as_type.56c)) -> @Factory.Method.%T (%T);
+// CHECK:STDOUT:   fn(%self.param: @Factory.Method.%Self.as_type.loc8_19.1 (%Self.as_type.487)) -> @Factory.Method.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @A.as.Destroy.impl.Op(%self.param: %ptr.6db) = "no_op";
@@ -1210,17 +1210,17 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T.loc4_19.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Factory.Make(constants.%T, constants.%Self.9ba) {
+// CHECK:STDOUT: specific @Factory.Make(constants.%T, constants.%Self.d6e) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Factory.Method(constants.%T, constants.%Self.9ba) {
+// CHECK:STDOUT: specific @Factory.Method(constants.%T, constants.%Self.d6e) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.c96
-// CHECK:STDOUT:   %Self => constants.%Self.9ba
-// CHECK:STDOUT:   %Self.as_type.loc8_19.1 => constants.%Self.as_type.56c
-// CHECK:STDOUT:   %pattern_type.loc8_13 => constants.%pattern_type.5ea
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.f0a
+// CHECK:STDOUT:   %Self => constants.%Self.d6e
+// CHECK:STDOUT:   %Self.as_type.loc8_19.1 => constants.%Self.as_type.487
+// CHECK:STDOUT:   %pattern_type.loc8_13 => constants.%pattern_type.7fe
 // CHECK:STDOUT:   %pattern_type.loc8_27 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1228,8 +1228,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T.loc4_19.1 => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.a5d
-// CHECK:STDOUT:   %Self.2 => constants.%Self.187
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.3cb
+// CHECK:STDOUT:   %Self.2 => constants.%Self.5a6
 // CHECK:STDOUT:   %Factory.Make.type => constants.%Factory.Make.type.c59
 // CHECK:STDOUT:   %Factory.Make => constants.%Factory.Make.efe
 // CHECK:STDOUT:   %Factory.assoc_type => constants.%Factory.assoc_type.579
@@ -1246,7 +1246,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Factory.Method(constants.%B, constants.%Factory.facet) {
 // CHECK:STDOUT:   %T => constants.%B
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.a5d
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.3cb
 // CHECK:STDOUT:   %Self => constants.%Factory.facet
 // CHECK:STDOUT:   %Self.as_type.loc8_19.1 => constants.%A
 // CHECK:STDOUT:   %pattern_type.loc8_13 => constants.%pattern_type.c10
@@ -1264,9 +1264,9 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Factory.type.1a8: type = generic_interface_type @Factory [concrete]
 // CHECK:STDOUT:   %Factory.generic: %Factory.type.1a8 = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Factory.type.c96: type = facet_type <@Factory, @Factory(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.9ba: %Factory.type.c96 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Factory.type.a5d: type = facet_type <@Factory, @Factory(%B)> [concrete]
+// CHECK:STDOUT:   %Factory.type.f0a: type = facet_type <@Factory, @Factory(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.d6e: %Factory.type.f0a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Factory.type.3cb: type = facet_type <@Factory, @Factory(%B)> [concrete]
 // CHECK:STDOUT:   %Factory.Make.type.598: type = fn_type @Factory.Make, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Factory.Make.737: %Factory.Make.type.598 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
@@ -1274,10 +1274,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %assoc0.46d25f.1: %Factory.assoc_type.207 = assoc_entity element0, imports.%Main.import_ref.21018a.1 [symbolic]
 // CHECK:STDOUT:   %Factory.Method.type.7ee: type = fn_type @Factory.Method, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Factory.Method.a71: %Factory.Method.type.7ee = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.9ba [symbolic]
-// CHECK:STDOUT:   %pattern_type.5ea: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.d6e [symbolic]
+// CHECK:STDOUT:   %pattern_type.7fe: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %assoc1.16541d.1: %Factory.assoc_type.207 = assoc_entity element1, imports.%Main.import_ref.46fc3c.1 [symbolic]
-// CHECK:STDOUT:   %Self.187: %Factory.type.a5d = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.5a6: %Factory.type.3cb = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Factory.Make.type.c59: type = fn_type @Factory.Make, @Factory(%B) [concrete]
 // CHECK:STDOUT:   %Factory.Make.efe: %Factory.Make.type.c59 = struct_value () [concrete]
 // CHECK:STDOUT:   %Factory.assoc_type.579: type = assoc_entity_type @Factory, @Factory(%B) [concrete]
@@ -1290,15 +1290,15 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %MakeB: %MakeB.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc0.46d25f.2: %Factory.assoc_type.207 = assoc_entity element0, imports.%Main.import_ref.21018a.2 [symbolic]
 // CHECK:STDOUT:   %Factory.impl_witness: <witness> = impl_witness imports.%Factory.impl_witness_table [concrete]
-// CHECK:STDOUT:   %Factory.facet: %Factory.type.a5d = facet_value %A, (%Factory.impl_witness) [concrete]
-// CHECK:STDOUT:   %.711: type = fn_type_with_self_type %Factory.Make.type.c59, %Factory.facet [concrete]
+// CHECK:STDOUT:   %Factory.facet: %Factory.type.3cb = facet_value %A, (%Factory.impl_witness) [concrete]
+// CHECK:STDOUT:   %.d2d: type = fn_type_with_self_type %Factory.Make.type.c59, %Factory.facet [concrete]
 // CHECK:STDOUT:   %A.as.Factory.impl.Make.type: type = fn_type @A.as.Factory.impl.Make [concrete]
 // CHECK:STDOUT:   %A.as.Factory.impl.Make: %A.as.Factory.impl.Make.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %InstanceB.type: type = fn_type @InstanceB [concrete]
 // CHECK:STDOUT:   %InstanceB: %InstanceB.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1.16541d.2: %Factory.assoc_type.207 = assoc_entity element1, imports.%Main.import_ref.46fc3c.2 [symbolic]
-// CHECK:STDOUT:   %.fed: type = fn_type_with_self_type %Factory.Method.type.117, %Factory.facet [concrete]
+// CHECK:STDOUT:   %.b0b: type = fn_type_with_self_type %Factory.Method.type.117, %Factory.facet [concrete]
 // CHECK:STDOUT:   %A.as.Factory.impl.Method.type: type = fn_type @A.as.Factory.impl.Method [concrete]
 // CHECK:STDOUT:   %A.as.Factory.impl.Method: %A.as.Factory.impl.Method.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -1311,41 +1311,41 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     import Core//prelude
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.7b0 = import_ref Main//factory, loc11_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.b40 = import_ref Main//factory, loc11_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//factory, loc11_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.da3 = import_ref Main//factory, inst82 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e1c: type = import_ref Main//factory, loc11_9, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.2d5 = import_ref Main//factory, loc11_9, unloaded
-// CHECK:STDOUT:   %Main.import_ref.ae7 = import_ref Main//factory, loc12_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.807 = import_ref Main//factory, loc11_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.7a0 = import_ref Main//factory, loc12_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//factory, loc12_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.54a = import_ref Main//factory, inst126 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.0e2: type = import_ref Main//factory, loc12_9, loaded [concrete = constants.%B]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.fc3 = import_ref Main//factory, loc12_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.96b = import_ref Main//factory, loc12_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//factory, loc4_19, loaded [symbolic = @Factory.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.fbb = import_ref Main//factory, inst29 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.798 = import_ref Main//factory, inst29 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.46c: @Factory.%Factory.assoc_type (%Factory.assoc_type.207) = import_ref Main//factory, loc6_17, loaded [symbolic = @Factory.%assoc0 (constants.%assoc0.46d25f.2)]
 // CHECK:STDOUT:   %Main.import_ref.2e4: @Factory.%Factory.assoc_type (%Factory.assoc_type.207) = import_ref Main//factory, loc8_31, loaded [symbolic = @Factory.%assoc1 (constants.%assoc1.16541d.2)]
 // CHECK:STDOUT:   %Main.Make = import_ref Main//factory, Make, unloaded
 // CHECK:STDOUT:   %Main.Method = import_ref Main//factory, Method, unloaded
-// CHECK:STDOUT:   %Main.import_ref.6fd: <witness> = import_ref Main//factory, loc14_22, loaded [concrete = constants.%Factory.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.6f1: <witness> = import_ref Main//factory, loc14_22, loaded [concrete = constants.%Factory.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.984: type = import_ref Main//factory, loc14_6, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.bd2: type = import_ref Main//factory, loc14_20, loaded [concrete = constants.%Factory.type.a5d]
-// CHECK:STDOUT:   %Main.import_ref.a27 = import_ref Main//factory, loc15_17, unloaded
-// CHECK:STDOUT:   %Main.import_ref.163 = import_ref Main//factory, loc16_31, unloaded
+// CHECK:STDOUT:   %Main.import_ref.ef9: type = import_ref Main//factory, loc14_20, loaded [concrete = constants.%Factory.type.3cb]
+// CHECK:STDOUT:   %Main.import_ref.cb3 = import_ref Main//factory, loc15_17, unloaded
+// CHECK:STDOUT:   %Main.import_ref.d3d = import_ref Main//factory, loc16_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//factory, loc4_19, loaded [symbolic = @Factory.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.91b53a.1: @Factory.%Factory.type (%Factory.type.c96) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Main.import_ref.a3d817.1: @Factory.%Factory.type (%Factory.type.f0a) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Main.import_ref.21018a.1 = import_ref Main//factory, loc6_17, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//factory, loc4_19, loaded [symbolic = @Factory.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.91b53a.2: @Factory.%Factory.type (%Factory.type.c96) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Main.import_ref.a3d817.2: @Factory.%Factory.type (%Factory.type.f0a) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Main.import_ref.46fc3c.1 = import_ref Main//factory, loc8_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.1aa: @Factory.%Factory.Make.type (%Factory.Make.type.598) = import_ref Main//factory, loc6_17, loaded [symbolic = @Factory.%Factory.Make (constants.%Factory.Make.737)]
 // CHECK:STDOUT:   %Main.import_ref.5be: @Factory.%Factory.Method.type (%Factory.Method.type.7ee) = import_ref Main//factory, loc8_31, loaded [symbolic = @Factory.%Factory.Method (constants.%Factory.Method.a71)]
 // CHECK:STDOUT:   %Main.import_ref.21018a.2 = import_ref Main//factory, loc6_17, unloaded
-// CHECK:STDOUT:   %Main.import_ref.9ec: %A.as.Factory.impl.Make.type = import_ref Main//factory, loc15_17, loaded [concrete = constants.%A.as.Factory.impl.Make]
-// CHECK:STDOUT:   %Main.import_ref.7dd: %A.as.Factory.impl.Method.type = import_ref Main//factory, loc16_31, loaded [concrete = constants.%A.as.Factory.impl.Method]
-// CHECK:STDOUT:   %Factory.impl_witness_table = impl_witness_table (%Main.import_ref.9ec, %Main.import_ref.7dd), @A.as.Factory.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.482: %A.as.Factory.impl.Make.type = import_ref Main//factory, loc15_17, loaded [concrete = constants.%A.as.Factory.impl.Make]
+// CHECK:STDOUT:   %Main.import_ref.6b3: %A.as.Factory.impl.Method.type = import_ref Main//factory, loc16_31, loaded [concrete = constants.%A.as.Factory.impl.Method]
+// CHECK:STDOUT:   %Factory.impl_witness_table = impl_witness_table (%Main.import_ref.482, %Main.import_ref.6b3), @A.as.Factory.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.46fc3c.2 = import_ref Main//factory, loc8_31, unloaded
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1388,8 +1388,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.c96)]
-// CHECK:STDOUT:   %Self: @Factory.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.f0a)]
+// CHECK:STDOUT:   %Self: @Factory.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Factory.Make.type: type = fn_type @Factory.Make, @Factory(%T) [symbolic = %Factory.Make.type (constants.%Factory.Make.type.598)]
 // CHECK:STDOUT:   %Factory.Make: @Factory.%Factory.Make.type (%Factory.Make.type.598) = struct_value () [symbolic = %Factory.Make (constants.%Factory.Make.737)]
 // CHECK:STDOUT:   %Factory.assoc_type: type = assoc_entity_type @Factory, @Factory(%T) [symbolic = %Factory.assoc_type (constants.%Factory.assoc_type.207)]
@@ -1400,30 +1400,30 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.fbb
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.798
 // CHECK:STDOUT:     .Make = imports.%Main.import_ref.46c
 // CHECK:STDOUT:     .Method = imports.%Main.import_ref.2e4
 // CHECK:STDOUT:     witness = (imports.%Main.Make, imports.%Main.Method)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.cb9298.1 [from "factory.carbon"] {
+// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.063034.1 [from "factory.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.2d5
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.7b0
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.807
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.b40
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.cb9298.2 [from "factory.carbon"] {
+// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.063034.2 [from "factory.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.fc3
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.ae7
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.96b
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.7a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Factory.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.bd2 [from "factory.carbon"] {
+// CHECK:STDOUT: impl @A.as.Factory.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.ef9 [from "factory.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Make = imports.%Main.import_ref.a27
-// CHECK:STDOUT:   .Method = imports.%Main.import_ref.163
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.6fd
+// CHECK:STDOUT:   .Make = imports.%Main.import_ref.cb3
+// CHECK:STDOUT:   .Method = imports.%Main.import_ref.d3d
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.6f1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @A [from "factory.carbon"] {
@@ -1440,19 +1440,19 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   .Self = imports.%Main.import_ref.54a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Factory.Make(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.91b53a.1: @Factory.%Factory.type (%Factory.type.c96)) [from "factory.carbon"] {
+// CHECK:STDOUT: generic fn @Factory.Make(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.a3d817.1: @Factory.%Factory.type (%Factory.type.f0a)) [from "factory.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T [symbolic = %pattern_type (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Factory.Method(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.91b53a.2: @Factory.%Factory.type (%Factory.type.c96)) [from "factory.carbon"] {
+// CHECK:STDOUT: generic fn @Factory.Method(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.a3d817.2: @Factory.%Factory.type (%Factory.type.f0a)) [from "factory.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.c96)]
-// CHECK:STDOUT:   %Self: @Factory.Method.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.f0a)]
+// CHECK:STDOUT:   %Self: @Factory.Method.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.5ea)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.7fe)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %T [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
@@ -1463,12 +1463,12 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %A.ref: type = name_ref A, imports.%Main.A [concrete = constants.%A]
 // CHECK:STDOUT:   %Factory.ref: %Factory.type.1a8 = name_ref Factory, imports.%Main.Factory [concrete = constants.%Factory.generic]
 // CHECK:STDOUT:   %B.ref.loc5: type = name_ref B, imports.%Main.B [concrete = constants.%B]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%B)> [concrete = constants.%Factory.type.a5d]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%B)> [concrete = constants.%Factory.type.3cb]
 // CHECK:STDOUT:   %.loc5_23: %Factory.assoc_type.579 = specific_constant imports.%Main.import_ref.46c, @Factory(constants.%B) [concrete = constants.%assoc0.153]
 // CHECK:STDOUT:   %Make.ref: %Factory.assoc_type.579 = name_ref Make, %.loc5_23 [concrete = constants.%assoc0.153]
-// CHECK:STDOUT:   %Factory.facet: %Factory.type.a5d = facet_value constants.%A, (constants.%Factory.impl_witness) [concrete = constants.%Factory.facet]
-// CHECK:STDOUT:   %.loc5_11: %Factory.type.a5d = converted %A.ref, %Factory.facet [concrete = constants.%Factory.facet]
-// CHECK:STDOUT:   %impl.elem0: %.711 = impl_witness_access constants.%Factory.impl_witness, element0 [concrete = constants.%A.as.Factory.impl.Make]
+// CHECK:STDOUT:   %Factory.facet: %Factory.type.3cb = facet_value constants.%A, (constants.%Factory.impl_witness) [concrete = constants.%Factory.facet]
+// CHECK:STDOUT:   %.loc5_11: %Factory.type.3cb = converted %A.ref, %Factory.facet [concrete = constants.%Factory.facet]
+// CHECK:STDOUT:   %impl.elem0: %.d2d = impl_witness_access constants.%Factory.impl_witness, element0 [concrete = constants.%A.as.Factory.impl.Make]
 // CHECK:STDOUT:   %.loc4: ref %B = splice_block %return {}
 // CHECK:STDOUT:   %A.as.Factory.impl.Make.call: init %B = call %impl.elem0() to %.loc4
 // CHECK:STDOUT:   return %A.as.Factory.impl.Make.call to %return
@@ -1481,10 +1481,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %a.ref: %A = name_ref a, %a
 // CHECK:STDOUT:   %Factory.ref: %Factory.type.1a8 = name_ref Factory, imports.%Main.Factory [concrete = constants.%Factory.generic]
 // CHECK:STDOUT:   %B.ref.loc8: type = name_ref B, imports.%Main.B [concrete = constants.%B]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%B)> [concrete = constants.%Factory.type.a5d]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%B)> [concrete = constants.%Factory.type.3cb]
 // CHECK:STDOUT:   %.loc8: %Factory.assoc_type.579 = specific_constant imports.%Main.import_ref.2e4, @Factory(constants.%B) [concrete = constants.%assoc1.a48]
 // CHECK:STDOUT:   %Method.ref: %Factory.assoc_type.579 = name_ref Method, %.loc8 [concrete = constants.%assoc1.a48]
-// CHECK:STDOUT:   %impl.elem1: %.fed = impl_witness_access constants.%Factory.impl_witness, element1 [concrete = constants.%A.as.Factory.impl.Method]
+// CHECK:STDOUT:   %impl.elem1: %.b0b = impl_witness_access constants.%Factory.impl_witness, element1 [concrete = constants.%A.as.Factory.impl.Method]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   %.loc7: ref %B = splice_block %return {}
 // CHECK:STDOUT:   %A.as.Factory.impl.Method.call: init %B = call %bound_method(%a.ref) to %.loc7
@@ -1501,8 +1501,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.a5d
-// CHECK:STDOUT:   %Self => constants.%Self.187
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.3cb
+// CHECK:STDOUT:   %Self => constants.%Self.5a6
 // CHECK:STDOUT:   %Factory.Make.type => constants.%Factory.Make.type.c59
 // CHECK:STDOUT:   %Factory.Make => constants.%Factory.Make.efe
 // CHECK:STDOUT:   %Factory.assoc_type => constants.%Factory.assoc_type.579
@@ -1512,17 +1512,17 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %assoc1 => constants.%assoc1.a48
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Factory.Make(constants.%T, constants.%Self.9ba) {
+// CHECK:STDOUT: specific @Factory.Make(constants.%T, constants.%Self.d6e) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Factory.Method(constants.%T, constants.%Self.9ba) {
+// CHECK:STDOUT: specific @Factory.Method(constants.%T, constants.%Self.d6e) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.c96
-// CHECK:STDOUT:   %Self => constants.%Self.9ba
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.f0a
+// CHECK:STDOUT:   %Self => constants.%Self.d6e
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.5ea
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.7fe
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1537,9 +1537,9 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %Factory.type.1a8: type = generic_interface_type @Factory [concrete]
 // CHECK:STDOUT:   %Factory.generic: %Factory.type.1a8 = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Factory.type.c96: type = facet_type <@Factory, @Factory(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.9ba: %Factory.type.c96 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Factory.type.a5d: type = facet_type <@Factory, @Factory(%B)> [concrete]
+// CHECK:STDOUT:   %Factory.type.f0a: type = facet_type <@Factory, @Factory(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.d6e: %Factory.type.f0a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Factory.type.3cb: type = facet_type <@Factory, @Factory(%B)> [concrete]
 // CHECK:STDOUT:   %Factory.Make.type.598: type = fn_type @Factory.Make, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Factory.Make.737: %Factory.Make.type.598 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
@@ -1547,10 +1547,10 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %assoc0.fe4: %Factory.assoc_type.207 = assoc_entity element0, imports.%Main.import_ref.1aa [symbolic]
 // CHECK:STDOUT:   %Factory.Method.type.7ee: type = fn_type @Factory.Method, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Factory.Method.a71: %Factory.Method.type.7ee = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type.56c: type = facet_access_type %Self.9ba [symbolic]
-// CHECK:STDOUT:   %pattern_type.5ea: type = pattern_type %Self.as_type.56c [symbolic]
+// CHECK:STDOUT:   %Self.as_type.487: type = facet_access_type %Self.d6e [symbolic]
+// CHECK:STDOUT:   %pattern_type.7fe: type = pattern_type %Self.as_type.487 [symbolic]
 // CHECK:STDOUT:   %assoc1.ea6: %Factory.assoc_type.207 = assoc_entity element1, imports.%Main.import_ref.5be [symbolic]
-// CHECK:STDOUT:   %Self.187: %Factory.type.a5d = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.5a6: %Factory.type.3cb = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Factory.Make.type.c59: type = fn_type @Factory.Make, @Factory(%B) [concrete]
 // CHECK:STDOUT:   %Factory.Make.efe: %Factory.Make.type.c59 = struct_value () [concrete]
 // CHECK:STDOUT:   %Factory.assoc_type.579: type = assoc_entity_type @Factory, @Factory(%B) [concrete]
@@ -1568,8 +1568,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %MakeC.type: type = fn_type @MakeC [concrete]
 // CHECK:STDOUT:   %MakeC: %MakeC.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Factory.type.5c5: type = facet_type <@Factory, @Factory(%C)> [concrete]
-// CHECK:STDOUT:   %Self.424: %Factory.type.5c5 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Factory.type.ade: type = facet_type <@Factory, @Factory(%C)> [concrete]
+// CHECK:STDOUT:   %Self.b25: %Factory.type.ade = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Factory.Make.type.0de: type = fn_type @Factory.Make, @Factory(%C) [concrete]
 // CHECK:STDOUT:   %Factory.Make.8ba: %Factory.Make.type.0de = struct_value () [concrete]
 // CHECK:STDOUT:   %Factory.assoc_type.d01: type = assoc_entity_type @Factory, @Factory(%C) [concrete]
@@ -1594,34 +1594,34 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:     import Core//default
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Main.import_ref.7b0 = import_ref Main//factory, loc11_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.b40 = import_ref Main//factory, loc11_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//factory, loc11_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.da3 = import_ref Main//factory, inst82 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e1c: type = import_ref Main//factory, loc11_9, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.1: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.2d5 = import_ref Main//factory, loc11_9, unloaded
-// CHECK:STDOUT:   %Main.import_ref.ae7 = import_ref Main//factory, loc12_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.1: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.807 = import_ref Main//factory, loc11_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.7a0 = import_ref Main//factory, loc12_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//factory, loc12_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.54a = import_ref Main//factory, inst126 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.0e2: type = import_ref Main//factory, loc12_9, loaded [concrete = constants.%B]
-// CHECK:STDOUT:   %Main.import_ref.cb9298.2: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.fc3 = import_ref Main//factory, loc12_9, unloaded
+// CHECK:STDOUT:   %Main.import_ref.063034.2: type = import_ref Main//factory, inst85 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.96b = import_ref Main//factory, loc12_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//factory, loc4_19, loaded [symbolic = @Factory.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.fbb = import_ref Main//factory, inst29 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.798 = import_ref Main//factory, inst29 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.46c: @Factory.%Factory.assoc_type (%Factory.assoc_type.207) = import_ref Main//factory, loc6_17, loaded [symbolic = @Factory.%assoc0 (constants.%assoc0.46d)]
 // CHECK:STDOUT:   %Main.import_ref.2e4: @Factory.%Factory.assoc_type (%Factory.assoc_type.207) = import_ref Main//factory, loc8_31, loaded [symbolic = @Factory.%assoc1 (constants.%assoc1.165)]
 // CHECK:STDOUT:   %Main.Make = import_ref Main//factory, Make, unloaded
 // CHECK:STDOUT:   %Main.Method = import_ref Main//factory, Method, unloaded
-// CHECK:STDOUT:   %Main.import_ref.4c3 = import_ref Main//factory, loc14_22, unloaded
+// CHECK:STDOUT:   %Main.import_ref.7f3 = import_ref Main//factory, loc14_22, unloaded
 // CHECK:STDOUT:   %Main.import_ref.984: type = import_ref Main//factory, loc14_6, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Main.import_ref.bd2: type = import_ref Main//factory, loc14_20, loaded [concrete = constants.%Factory.type.a5d]
-// CHECK:STDOUT:   %Main.import_ref.a27 = import_ref Main//factory, loc15_17, unloaded
-// CHECK:STDOUT:   %Main.import_ref.163 = import_ref Main//factory, loc16_31, unloaded
+// CHECK:STDOUT:   %Main.import_ref.ef9: type = import_ref Main//factory, loc14_20, loaded [concrete = constants.%Factory.type.3cb]
+// CHECK:STDOUT:   %Main.import_ref.cb3 = import_ref Main//factory, loc15_17, unloaded
+// CHECK:STDOUT:   %Main.import_ref.d3d = import_ref Main//factory, loc16_31, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//factory, loc4_19, loaded [symbolic = @Factory.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.91b53a.1: @Factory.%Factory.type (%Factory.type.c96) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Main.import_ref.a3d817.1: @Factory.%Factory.type (%Factory.type.f0a) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Main.import_ref.1aa: @Factory.%Factory.Make.type (%Factory.Make.type.598) = import_ref Main//factory, loc6_17, loaded [symbolic = @Factory.%Factory.Make (constants.%Factory.Make.737)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//factory, loc4_19, loaded [symbolic = @Factory.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.91b53a.2: @Factory.%Factory.type (%Factory.type.c96) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Main.import_ref.a3d817.2: @Factory.%Factory.type (%Factory.type.f0a) = import_ref Main//factory, inst29 [no loc], loaded [symbolic = @Factory.%Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Main.import_ref.5be: @Factory.%Factory.Method.type (%Factory.Method.type.7ee) = import_ref Main//factory, loc8_31, loaded [symbolic = @Factory.%Factory.Method (constants.%Factory.Method.a71)]
 // CHECK:STDOUT:   %Main.import_ref.21018a.1 = import_ref Main//factory, loc6_17, unloaded
 // CHECK:STDOUT:   %Main.import_ref.46fc3c.1 = import_ref Main//factory, loc8_31, unloaded
@@ -1671,8 +1671,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.c96)]
-// CHECK:STDOUT:   %Self: @Factory.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.9ba)]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.f0a)]
+// CHECK:STDOUT:   %Self: @Factory.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.d6e)]
 // CHECK:STDOUT:   %Factory.Make.type: type = fn_type @Factory.Make, @Factory(%T) [symbolic = %Factory.Make.type (constants.%Factory.Make.type.598)]
 // CHECK:STDOUT:   %Factory.Make: @Factory.%Factory.Make.type (%Factory.Make.type.598) = struct_value () [symbolic = %Factory.Make (constants.%Factory.Make.737)]
 // CHECK:STDOUT:   %Factory.assoc_type: type = assoc_entity_type @Factory, @Factory(%T) [symbolic = %Factory.assoc_type (constants.%Factory.assoc_type.207)]
@@ -1683,30 +1683,30 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.fbb
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.798
 // CHECK:STDOUT:     .Make = imports.%Main.import_ref.46c
 // CHECK:STDOUT:     .Method = imports.%Main.import_ref.2e4
 // CHECK:STDOUT:     witness = (imports.%Main.Make, imports.%Main.Method)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.cb9298.1 [from "factory.carbon"] {
+// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Main.import_ref.e1c as imports.%Main.import_ref.063034.1 [from "factory.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.2d5
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.7b0
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.807
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.b40
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.cb9298.2 [from "factory.carbon"] {
+// CHECK:STDOUT: impl @B.as.Destroy.impl: imports.%Main.import_ref.0e2 as imports.%Main.import_ref.063034.2 [from "factory.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Op = imports.%Main.import_ref.fc3
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.ae7
+// CHECK:STDOUT:   .Op = imports.%Main.import_ref.96b
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.7a0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Factory.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.bd2 [from "factory.carbon"] {
+// CHECK:STDOUT: impl @A.as.Factory.impl: imports.%Main.import_ref.984 as imports.%Main.import_ref.ef9 [from "factory.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Make = imports.%Main.import_ref.a27
-// CHECK:STDOUT:   .Method = imports.%Main.import_ref.163
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.4c3
+// CHECK:STDOUT:   .Make = imports.%Main.import_ref.cb3
+// CHECK:STDOUT:   .Method = imports.%Main.import_ref.d3d
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.7f3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.Destroy.impl: @C.%Self.ref as constants.%Destroy.type {
@@ -1751,19 +1751,19 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   .Self = constants.%C
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Factory.Make(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.91b53a.1: @Factory.%Factory.type (%Factory.type.c96)) [from "factory.carbon"] {
+// CHECK:STDOUT: generic fn @Factory.Make(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.a3d817.1: @Factory.%Factory.type (%Factory.type.f0a)) [from "factory.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %T [symbolic = %pattern_type (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Factory.Method(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.91b53a.2: @Factory.%Factory.type (%Factory.type.c96)) [from "factory.carbon"] {
+// CHECK:STDOUT: generic fn @Factory.Method(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.a3d817.2: @Factory.%Factory.type (%Factory.type.f0a)) [from "factory.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.c96)]
-// CHECK:STDOUT:   %Self: @Factory.Method.%Factory.type (%Factory.type.c96) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.9ba)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.56c)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.5ea)]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(%T)> [symbolic = %Factory.type (constants.%Factory.type.f0a)]
+// CHECK:STDOUT:   %Self: @Factory.Method.%Factory.type (%Factory.type.f0a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.d6e)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.487)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.7fe)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %T [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
@@ -1776,7 +1776,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %A.ref: type = name_ref A, imports.%Main.A [concrete = constants.%A]
 // CHECK:STDOUT:   %Factory.ref: %Factory.type.1a8 = name_ref Factory, imports.%Main.Factory [concrete = constants.%Factory.generic]
 // CHECK:STDOUT:   %C.ref.loc13: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%C)> [concrete = constants.%Factory.type.5c5]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%C)> [concrete = constants.%Factory.type.ade]
 // CHECK:STDOUT:   %.loc13: %Factory.assoc_type.d01 = specific_constant imports.%Main.import_ref.46c, @Factory(constants.%C) [concrete = constants.%assoc0.38e]
 // CHECK:STDOUT:   %Make.ref: %Factory.assoc_type.d01 = name_ref Make, %.loc13 [concrete = constants.%assoc0.38e]
 // CHECK:STDOUT:   return <error> to %return
@@ -1787,7 +1787,7 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %a.ref: %A = name_ref a, %a
 // CHECK:STDOUT:   %Factory.ref: %Factory.type.1a8 = name_ref Factory, imports.%Main.Factory [concrete = constants.%Factory.generic]
 // CHECK:STDOUT:   %C.ref.loc21: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%C)> [concrete = constants.%Factory.type.5c5]
+// CHECK:STDOUT:   %Factory.type: type = facet_type <@Factory, @Factory(constants.%C)> [concrete = constants.%Factory.type.ade]
 // CHECK:STDOUT:   %.loc21: %Factory.assoc_type.d01 = specific_constant imports.%Main.import_ref.2e4, @Factory(constants.%C) [concrete = constants.%assoc1.263]
 // CHECK:STDOUT:   %Method.ref: %Factory.assoc_type.d01 = name_ref Method, %.loc21 [concrete = constants.%assoc1.263]
 // CHECK:STDOUT:   return <error> to %return
@@ -1801,8 +1801,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.a5d
-// CHECK:STDOUT:   %Self => constants.%Self.187
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.3cb
+// CHECK:STDOUT:   %Self => constants.%Self.5a6
 // CHECK:STDOUT:   %Factory.Make.type => constants.%Factory.Make.type.c59
 // CHECK:STDOUT:   %Factory.Make => constants.%Factory.Make.efe
 // CHECK:STDOUT:   %Factory.assoc_type => constants.%Factory.assoc_type.579
@@ -1812,17 +1812,17 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %assoc1 => constants.%assoc1.535
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Factory.Make(constants.%T, constants.%Self.9ba) {
+// CHECK:STDOUT: specific @Factory.Make(constants.%T, constants.%Self.d6e) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Factory.Method(constants.%T, constants.%Self.9ba) {
+// CHECK:STDOUT: specific @Factory.Method(constants.%T, constants.%Self.d6e) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.c96
-// CHECK:STDOUT:   %Self => constants.%Self.9ba
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.56c
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.5ea
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.f0a
+// CHECK:STDOUT:   %Self => constants.%Self.d6e
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.487
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.7fe
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1830,8 +1830,8 @@ fn InstanceC(a: A) -> C {
 // CHECK:STDOUT:   %T => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.5c5
-// CHECK:STDOUT:   %Self => constants.%Self.424
+// CHECK:STDOUT:   %Factory.type => constants.%Factory.type.ade
+// CHECK:STDOUT:   %Self => constants.%Self.b25
 // CHECK:STDOUT:   %Factory.Make.type => constants.%Factory.Make.type.0de
 // CHECK:STDOUT:   %Factory.Make => constants.%Factory.Make.8ba
 // CHECK:STDOUT:   %Factory.assoc_type => constants.%Factory.assoc_type.d01
diff --git a/toolchain/check/testdata/impl/lookup/alias.carbon b/toolchain/check/testdata/impl/lookup/alias.carbon
index 0dec1c8a8671..cf55607d50d5 100644
--- a/toolchain/check/testdata/impl/lookup/alias.carbon
+++ b/toolchain/check/testdata/impl/lookup/alias.carbon
@@ -49,7 +49,7 @@ fn G(c: C) {
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.fec: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
+// CHECK:STDOUT:   %.9f5: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -121,11 +121,11 @@ fn G(c: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %C.ref.loc28: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %G.ref.loc28: %HasF.assoc_type = name_ref G, @C.%G [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0.loc28: %.fec = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc28: %.9f5 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call.loc28: init %empty_tuple.type = call %impl.elem0.loc28()
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %G.ref.loc29: %HasF.assoc_type = name_ref G, @C.%G [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0.loc29: %.fec = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc29: %.9f5 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call.loc29: init %empty_tuple.type = call %impl.elem0.loc29()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/lookup/canonical_query_self.carbon b/toolchain/check/testdata/impl/lookup/canonical_query_self.carbon
index 1829aa9bb978..bfcd44f9cb73 100644
--- a/toolchain/check/testdata/impl/lookup/canonical_query_self.carbon
+++ b/toolchain/check/testdata/impl/lookup/canonical_query_self.carbon
@@ -50,18 +50,18 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.II.type: type = fn_type @I.II [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.II: %I.II.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.82e: %I.assoc_type = assoc_entity element0, @I.%I.II.decl [concrete]
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %pattern_type.4ca: type = pattern_type %Self.as_type.3df [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %pattern_type.059: type = pattern_type %Self.as_type.e94 [symbolic]
 // CHECK:STDOUT:   %J.JJ.type: type = fn_type @J.JJ [concrete]
 // CHECK:STDOUT:   %J.JJ: %J.JJ.type = struct_value () [concrete]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
@@ -69,29 +69,29 @@ fn G() {
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %I.type, %type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %facet_type: type = facet_type <@I & @J> [concrete]
-// CHECK:STDOUT:   %T.527: %facet_type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f8f: type = pattern_type %facet_type [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.527 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a4f: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %T.d83: %facet_type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.4af: type = pattern_type %facet_type [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.d83 [symbolic]
+// CHECK:STDOUT:   %pattern_type.c63: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.df2: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.527, @I [symbolic]
-// CHECK:STDOUT:   %I.facet.e75: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.527, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.fa4: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.935: type = fn_type_with_self_type %J.JJ.type, %J.facet.fa4 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.935 = impl_witness_access %J.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @J.JJ(%J.facet.fa4) [symbolic]
+// CHECK:STDOUT:   %require_complete.342: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.d83, @I [symbolic]
+// CHECK:STDOUT:   %I.facet.a3d: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.d83, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.f17: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.278: type = fn_type_with_self_type %J.JJ.type, %J.facet.f17 [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.278 = impl_witness_access %J.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @J.JJ(%J.facet.f17) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
@@ -99,14 +99,14 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.893: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.II.type: type = fn_type @C.as.I.impl.II [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.II: %C.as.I.impl.II.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.98f: %I.type = facet_value %C, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet.322: %I.type = facet_value %C, (%I.impl_witness) [concrete]
 // CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness @C.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.J.impl.JJ.type: type = fn_type @C.as.J.impl.JJ [concrete]
 // CHECK:STDOUT:   %C.as.J.impl.JJ: %C.as.J.impl.JJ.type = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.5df: %J.type = facet_value %C, (%J.impl_witness) [concrete]
+// CHECK:STDOUT:   %J.facet.d18: %J.type = facet_value %C, (%J.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.bd5: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.b22: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.8e6: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.663: type = pattern_type %ptr.8e6 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -114,7 +114,7 @@ fn G() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %.638: type = fn_type_with_self_type %J.JJ.type, %J.facet.5df [concrete]
+// CHECK:STDOUT:   %.229: type = fn_type_with_self_type %J.JJ.type, %J.facet.d18 [concrete]
 // CHECK:STDOUT:   %facet_value: %facet_type = facet_value %C, (%I.impl_witness, %J.impl_witness) [concrete]
 // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F, @F(%facet_value) [concrete]
 // CHECK:STDOUT: }
@@ -127,8 +127,8 @@ fn G() {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -144,24 +144,24 @@ fn G() {
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.f8f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @F.%pattern_type (%pattern_type.a4f) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type (%pattern_type.a4f) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.4af = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @F.%pattern_type (%pattern_type.c63) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type (%pattern_type.c63) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc22_12.1: type = splice_block %.loc22_12.3 [concrete = constants.%facet_type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %I.ref.loc22: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       %J.ref.loc22: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:       %impl.elem0.loc22: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:       %impl.elem0.loc22: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:       %bound_method.loc22: <bound method> = bound_method %I.ref.loc22, %impl.elem0.loc22 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:       %type.as.BitAndWith.impl.Op.call: init type = call %bound_method.loc22(%I.ref.loc22, %J.ref.loc22) [concrete = constants.%facet_type]
 // CHECK:STDOUT:       %.loc22_12.2: type = value_of_initializer %type.as.BitAndWith.impl.Op.call [concrete = constants.%facet_type]
 // CHECK:STDOUT:       %.loc22_12.3: type = converted %type.as.BitAndWith.impl.Op.call, %.loc22_12.2 [concrete = constants.%facet_type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc22_6.2: %facet_type = bind_symbolic_name T, 0 [symbolic = %T.loc22_6.1 (constants.%T.527)]
+// CHECK:STDOUT:     %T.loc22_6.2: %facet_type = bind_symbolic_name T, 0 [symbolic = %T.loc22_6.1 (constants.%T.d83)]
 // CHECK:STDOUT:     %t.param: @F.%T.as_type.loc22_20.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc22_20.1: type = splice_block %.loc22_20.2 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc22: %facet_type = name_ref T, %T.loc22_6.2 [symbolic = %T.loc22_6.1 (constants.%T.527)]
+// CHECK:STDOUT:       %T.ref.loc22: %facet_type = name_ref T, %T.loc22_6.2 [symbolic = %T.loc22_6.1 (constants.%T.d83)]
 // CHECK:STDOUT:       %T.as_type.loc22_20.2: type = facet_access_type %T.ref.loc22 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc22_20.2: type = converted %T.ref.loc22, %T.as_type.loc22_20.2 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -171,18 +171,18 @@ fn G() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.II.decl: %I.II.type = fn_decl @I.II [concrete = constants.%I.II] {
-// CHECK:STDOUT:     %self.patt: @I.II.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.II.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.II.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.II.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @I.II.%Self.as_type.loc16_15.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc16_15.1: type = splice_block %.loc16_15.2 [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc16_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc16_15.2: type = converted %Self.ref, %Self.as_type.loc16_15.2 [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %self.param: @I.II.%Self.as_type.loc16_15.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc16_15.1: type = splice_block %.loc16_15.2 [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc16_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc16_15.2: type = converted %Self.ref, %Self.as_type.loc16_15.2 [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.II.%Self.as_type.loc16_15.1 (%Self.as_type.b70) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @I.II.%Self.as_type.loc16_15.1 (%Self.as_type.4af) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.II.decl [concrete = constants.%assoc0.82e]
 // CHECK:STDOUT:
@@ -195,18 +195,18 @@ fn G() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %J.JJ.decl: %J.JJ.type = fn_decl @J.JJ [concrete = constants.%J.JJ] {
-// CHECK:STDOUT:     %self.patt: @J.JJ.%pattern_type (%pattern_type.4ca) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @J.JJ.%pattern_type (%pattern_type.4ca) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @J.JJ.%pattern_type (%pattern_type.059) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @J.JJ.%pattern_type (%pattern_type.059) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @J.JJ.%Self.as_type.loc19_15.1 (%Self.as_type.3df) = value_param call_param0
-// CHECK:STDOUT:     %.loc19_15.1: type = splice_block %.loc19_15.2 [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.3df)] {
-// CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:       %Self.as_type.loc19_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.3df)]
-// CHECK:STDOUT:       %.loc19_15.2: type = converted %Self.ref, %Self.as_type.loc19_15.2 [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.3df)]
+// CHECK:STDOUT:     %self.param: @J.JJ.%Self.as_type.loc19_15.1 (%Self.as_type.e94) = value_param call_param0
+// CHECK:STDOUT:     %.loc19_15.1: type = splice_block %.loc19_15.2 [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.e94)] {
+// CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:       %Self.as_type.loc19_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.e94)]
+// CHECK:STDOUT:       %.loc19_15.2: type = converted %Self.ref, %Self.as_type.loc19_15.2 [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.e94)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @J.JJ.%Self.as_type.loc19_15.1 (%Self.as_type.3df) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @J.JJ.%Self.as_type.loc19_15.1 (%Self.as_type.e94) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %J.assoc_type = assoc_entity element0, %J.JJ.decl [concrete = constants.%assoc0.78c]
 // CHECK:STDOUT:
@@ -278,7 +278,7 @@ fn G() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.bd5]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b22]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -292,67 +292,67 @@ fn G() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.II(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc16_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_15.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc16_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_15.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.II.%Self.as_type.loc16_15.1 (%Self.as_type.b70));
+// CHECK:STDOUT:   fn(%self.param: @I.II.%Self.as_type.loc16_15.1 (%Self.as_type.4af));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.JJ(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %Self.as_type.loc19_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.3df)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc19_15.1 [symbolic = %pattern_type (constants.%pattern_type.4ca)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %Self.as_type.loc19_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc19_15.1 (constants.%Self.as_type.e94)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc19_15.1 [symbolic = %pattern_type (constants.%pattern_type.059)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @J.JJ.%Self.as_type.loc19_15.1 (%Self.as_type.3df));
+// CHECK:STDOUT:   fn(%self.param: @J.JJ.%Self.as_type.loc19_15.1 (%Self.as_type.e94));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%T.loc22_6.2: %facet_type) {
-// CHECK:STDOUT:   %T.loc22_6.1: %facet_type = bind_symbolic_name T, 0 [symbolic = %T.loc22_6.1 (constants.%T.527)]
+// CHECK:STDOUT:   %T.loc22_6.1: %facet_type = bind_symbolic_name T, 0 [symbolic = %T.loc22_6.1 (constants.%T.d83)]
 // CHECK:STDOUT:   %T.as_type.loc22_20.1: type = facet_access_type %T.loc22_6.1 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc22_20.1 [symbolic = %pattern_type (constants.%pattern_type.a4f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc22_20.1 [symbolic = %pattern_type (constants.%pattern_type.c63)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc22_20.1 [symbolic = %require_complete (constants.%require_complete.df2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc22_20.1 [symbolic = %require_complete (constants.%require_complete.342)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc22_6.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
-// CHECK:STDOUT:   %I.facet.loc26_18.2: %I.type = facet_value %T.as_type.loc22_20.1, (%I.lookup_impl_witness) [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.e75)]
+// CHECK:STDOUT:   %I.facet.loc26_18.2: %I.type = facet_value %T.as_type.loc22_20.1, (%I.lookup_impl_witness) [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.a3d)]
 // CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc22_6.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness)]
-// CHECK:STDOUT:   %J.facet.loc26_33.2: %J.type = facet_value %T.as_type.loc22_20.1, (%J.lookup_impl_witness) [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.fa4)]
-// CHECK:STDOUT:   %.loc26_69.2: type = fn_type_with_self_type constants.%J.JJ.type, %J.facet.loc26_33.2 [symbolic = %.loc26_69.2 (constants.%.935)]
-// CHECK:STDOUT:   %impl.elem0.loc26_69.2: @F.%.loc26_69.2 (%.935) = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_69.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %J.facet.loc26_33.2: %J.type = facet_value %T.as_type.loc22_20.1, (%J.lookup_impl_witness) [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.f17)]
+// CHECK:STDOUT:   %.loc26_69.2: type = fn_type_with_self_type constants.%J.JJ.type, %J.facet.loc26_33.2 [symbolic = %.loc26_69.2 (constants.%.278)]
+// CHECK:STDOUT:   %impl.elem0.loc26_69.2: @F.%.loc26_69.2 (%.278) = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_69.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc26_69.2: <specific function> = specific_impl_function %impl.elem0.loc26_69.2, @J.JJ(%J.facet.loc26_33.2) [symbolic = %specific_impl_fn.loc26_69.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc22_20.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref: @F.%T.as_type.loc22_20.1 (%T.as_type) = name_ref t, %t
-// CHECK:STDOUT:     %T.ref.loc26: %facet_type = name_ref T, %T.loc22_6.2 [symbolic = %T.loc22_6.1 (constants.%T.527)]
+// CHECK:STDOUT:     %T.ref.loc26: %facet_type = name_ref T, %T.loc22_6.2 [symbolic = %T.loc22_6.1 (constants.%T.d83)]
 // CHECK:STDOUT:     %I.ref.loc26_21: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %T.as_type.loc26_18: type = facet_access_type constants.%T.527 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %I.facet.loc26_18.1: %I.type = facet_value %T.as_type.loc26_18, (constants.%I.lookup_impl_witness) [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.e75)]
-// CHECK:STDOUT:     %.loc26_18: %I.type = converted %T.ref.loc26, %I.facet.loc26_18.1 [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.e75)]
+// CHECK:STDOUT:     %T.as_type.loc26_18: type = facet_access_type constants.%T.d83 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %I.facet.loc26_18.1: %I.type = facet_value %T.as_type.loc26_18, (constants.%I.lookup_impl_witness) [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.a3d)]
+// CHECK:STDOUT:     %.loc26_18: %I.type = converted %T.ref.loc26, %I.facet.loc26_18.1 [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.a3d)]
 // CHECK:STDOUT:     %as_type.loc26_24: type = facet_access_type %.loc26_18 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc26_24: type = converted %.loc26_18, %as_type.loc26_24 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %J.ref.loc26_36: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:     %J.facet.loc26_33.1: %J.type = facet_value constants.%T.as_type, (constants.%J.lookup_impl_witness) [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.fa4)]
-// CHECK:STDOUT:     %.loc26_33: %J.type = converted %.loc26_24, %J.facet.loc26_33.1 [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.fa4)]
+// CHECK:STDOUT:     %J.facet.loc26_33.1: %J.type = facet_value constants.%T.as_type, (constants.%J.lookup_impl_witness) [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.f17)]
+// CHECK:STDOUT:     %.loc26_33: %J.type = converted %.loc26_24, %J.facet.loc26_33.1 [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.f17)]
 // CHECK:STDOUT:     %as_type.loc26_39: type = facet_access_type %.loc26_33 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc26_39: type = converted %.loc26_33, %as_type.loc26_39 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %I.ref.loc26_51: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %I.facet.loc26_48: %I.type = facet_value constants.%T.as_type, (constants.%I.lookup_impl_witness) [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.e75)]
-// CHECK:STDOUT:     %.loc26_48: %I.type = converted %.loc26_39, %I.facet.loc26_48 [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.e75)]
+// CHECK:STDOUT:     %I.facet.loc26_48: %I.type = facet_value constants.%T.as_type, (constants.%I.lookup_impl_witness) [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.a3d)]
+// CHECK:STDOUT:     %.loc26_48: %I.type = converted %.loc26_39, %I.facet.loc26_48 [symbolic = %I.facet.loc26_18.2 (constants.%I.facet.a3d)]
 // CHECK:STDOUT:     %as_type.loc26_54: type = facet_access_type %.loc26_48 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc26_54: type = converted %.loc26_48, %as_type.loc26_54 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %J.ref.loc26_66: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:     %J.facet.loc26_63: %J.type = facet_value constants.%T.as_type, (constants.%J.lookup_impl_witness) [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.fa4)]
-// CHECK:STDOUT:     %.loc26_63: %J.type = converted %.loc26_54, %J.facet.loc26_63 [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.fa4)]
+// CHECK:STDOUT:     %J.facet.loc26_63: %J.type = facet_value constants.%T.as_type, (constants.%J.lookup_impl_witness) [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.f17)]
+// CHECK:STDOUT:     %.loc26_63: %J.type = converted %.loc26_54, %J.facet.loc26_63 [symbolic = %J.facet.loc26_33.2 (constants.%J.facet.f17)]
 // CHECK:STDOUT:     %as_type.loc26_67: type = facet_access_type %.loc26_63 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc26_67: type = converted %.loc26_63, %as_type.loc26_67 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %JJ.ref: %J.assoc_type = name_ref JJ, @J.%assoc0 [concrete = constants.%assoc0.78c]
-// CHECK:STDOUT:     %T.as_type.loc26_69: type = facet_access_type constants.%T.527 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc26_69.1: type = converted constants.%T.527, %T.as_type.loc26_69 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc26_69.1: @F.%.loc26_69.2 (%.935) = impl_witness_access constants.%J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_69.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %T.as_type.loc26_69: type = facet_access_type constants.%T.d83 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc26_69.1: type = converted constants.%T.d83, %T.as_type.loc26_69 [symbolic = %T.as_type.loc22_20.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem0.loc26_69.1: @F.%.loc26_69.2 (%.278) = impl_witness_access constants.%J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_69.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc26_69: <bound method> = bound_method %t.ref, %impl.elem0.loc26_69.1
-// CHECK:STDOUT:     %specific_impl_fn.loc26_69.1: <specific function> = specific_impl_function %impl.elem0.loc26_69.1, @J.JJ(constants.%J.facet.fa4) [symbolic = %specific_impl_fn.loc26_69.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %specific_impl_fn.loc26_69.1: <specific function> = specific_impl_function %impl.elem0.loc26_69.1, @J.JJ(constants.%J.facet.f17) [symbolic = %specific_impl_fn.loc26_69.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc26_73: <bound method> = bound_method %t.ref, %specific_impl_fn.loc26_69.1
 // CHECK:STDOUT:     %.loc26_73: init %empty_tuple.type = call %bound_method.loc26_73(%t.ref)
 // CHECK:STDOUT:     return
@@ -370,27 +370,27 @@ fn G() {
 // CHECK:STDOUT:   %.loc40_8.1: ref %C = converted %.loc40_6.1, %.loc40_6.4
 // CHECK:STDOUT:   %C.ref.loc40_24: type = name_ref C, %C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %I.ref.loc40_29: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:   %I.facet.loc40_26: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.98f]
-// CHECK:STDOUT:   %.loc40_26: %I.type = converted %C.ref.loc40_24, %I.facet.loc40_26 [concrete = constants.%I.facet.98f]
+// CHECK:STDOUT:   %I.facet.loc40_26: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.322]
+// CHECK:STDOUT:   %.loc40_26: %I.type = converted %C.ref.loc40_24, %I.facet.loc40_26 [concrete = constants.%I.facet.322]
 // CHECK:STDOUT:   %as_type.loc40_32: type = facet_access_type %.loc40_26 [concrete = constants.%C]
 // CHECK:STDOUT:   %.loc40_32: type = converted %.loc40_26, %as_type.loc40_32 [concrete = constants.%C]
 // CHECK:STDOUT:   %J.ref.loc40_44: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:   %J.facet.loc40_41: %J.type = facet_value constants.%C, (constants.%J.impl_witness) [concrete = constants.%J.facet.5df]
-// CHECK:STDOUT:   %.loc40_41: %J.type = converted %.loc40_32, %J.facet.loc40_41 [concrete = constants.%J.facet.5df]
+// CHECK:STDOUT:   %J.facet.loc40_41: %J.type = facet_value constants.%C, (constants.%J.impl_witness) [concrete = constants.%J.facet.d18]
+// CHECK:STDOUT:   %.loc40_41: %J.type = converted %.loc40_32, %J.facet.loc40_41 [concrete = constants.%J.facet.d18]
 // CHECK:STDOUT:   %as_type.loc40_47: type = facet_access_type %.loc40_41 [concrete = constants.%C]
 // CHECK:STDOUT:   %.loc40_47: type = converted %.loc40_41, %as_type.loc40_47 [concrete = constants.%C]
 // CHECK:STDOUT:   %I.ref.loc40_59: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:   %I.facet.loc40_56: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.98f]
-// CHECK:STDOUT:   %.loc40_56: %I.type = converted %.loc40_47, %I.facet.loc40_56 [concrete = constants.%I.facet.98f]
+// CHECK:STDOUT:   %I.facet.loc40_56: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet.322]
+// CHECK:STDOUT:   %.loc40_56: %I.type = converted %.loc40_47, %I.facet.loc40_56 [concrete = constants.%I.facet.322]
 // CHECK:STDOUT:   %as_type.loc40_62: type = facet_access_type %.loc40_56 [concrete = constants.%C]
 // CHECK:STDOUT:   %.loc40_62: type = converted %.loc40_56, %as_type.loc40_62 [concrete = constants.%C]
 // CHECK:STDOUT:   %J.ref.loc40_74: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:   %J.facet.loc40_71: %J.type = facet_value constants.%C, (constants.%J.impl_witness) [concrete = constants.%J.facet.5df]
-// CHECK:STDOUT:   %.loc40_71: %J.type = converted %.loc40_62, %J.facet.loc40_71 [concrete = constants.%J.facet.5df]
+// CHECK:STDOUT:   %J.facet.loc40_71: %J.type = facet_value constants.%C, (constants.%J.impl_witness) [concrete = constants.%J.facet.d18]
+// CHECK:STDOUT:   %.loc40_71: %J.type = converted %.loc40_62, %J.facet.loc40_71 [concrete = constants.%J.facet.d18]
 // CHECK:STDOUT:   %as_type.loc40_75: type = facet_access_type %.loc40_71 [concrete = constants.%C]
 // CHECK:STDOUT:   %.loc40_75: type = converted %.loc40_71, %as_type.loc40_75 [concrete = constants.%C]
 // CHECK:STDOUT:   %JJ.ref: %J.assoc_type = name_ref JJ, @J.%assoc0 [concrete = constants.%assoc0.78c]
-// CHECK:STDOUT:   %impl.elem0: %.638 = impl_witness_access constants.%J.impl_witness, element0 [concrete = constants.%C.as.J.impl.JJ]
+// CHECK:STDOUT:   %impl.elem0: %.229 = impl_witness_access constants.%J.impl_witness, element0 [concrete = constants.%C.as.J.impl.JJ]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc40_8.1, %impl.elem0
 // CHECK:STDOUT:   %.loc40_8.2: %C = bind_value %.loc40_8.1
 // CHECK:STDOUT:   %C.as.J.impl.JJ.call: init %empty_tuple.type = call %bound_method(%.loc40_8.2)
@@ -432,38 +432,38 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.8e6) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.II(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc16_15.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.II(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc16_15.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.JJ(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %Self.as_type.loc19_15.1 => constants.%Self.as_type.3df
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4ca
+// CHECK:STDOUT: specific @J.JJ(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %Self.as_type.loc19_15.1 => constants.%Self.as_type.e94
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.059
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @F(constants.%T.527) {
-// CHECK:STDOUT:   %T.loc22_6.1 => constants.%T.527
+// CHECK:STDOUT: specific @F(constants.%T.d83) {
+// CHECK:STDOUT:   %T.loc22_6.1 => constants.%T.d83
 // CHECK:STDOUT:   %T.as_type.loc22_20.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a4f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c63
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.JJ(constants.%J.facet.fa4) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.fa4
+// CHECK:STDOUT: specific @J.JJ(constants.%J.facet.f17) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.f17
 // CHECK:STDOUT:   %Self.as_type.loc19_15.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a4f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c63
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.II(constants.%I.facet.98f) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.98f
+// CHECK:STDOUT: specific @I.II(constants.%I.facet.322) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.322
 // CHECK:STDOUT:   %Self.as_type.loc16_15.1 => constants.%C
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.893
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.JJ(constants.%J.facet.5df) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.5df
+// CHECK:STDOUT: specific @J.JJ(constants.%J.facet.d18) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.d18
 // CHECK:STDOUT:   %Self.as_type.loc19_15.1 => constants.%C
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.893
 // CHECK:STDOUT: }
@@ -476,10 +476,10 @@ fn G() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
 // CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.impl_witness
-// CHECK:STDOUT:   %I.facet.loc26_18.2 => constants.%I.facet.98f
+// CHECK:STDOUT:   %I.facet.loc26_18.2 => constants.%I.facet.322
 // CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness
-// CHECK:STDOUT:   %J.facet.loc26_33.2 => constants.%J.facet.5df
-// CHECK:STDOUT:   %.loc26_69.2 => constants.%.638
+// CHECK:STDOUT:   %J.facet.loc26_33.2 => constants.%J.facet.d18
+// CHECK:STDOUT:   %.loc26_69.2 => constants.%.229
 // CHECK:STDOUT:   %impl.elem0.loc26_69.2 => constants.%C.as.J.impl.JJ
 // CHECK:STDOUT:   %specific_impl_fn.loc26_69.2 => constants.%C.as.J.impl.JJ
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon b/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
index 25507b50bb85..a410104b676e 100644
--- a/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
+++ b/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
@@ -58,17 +58,17 @@ fn G() {
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %I.impl_witness.ab4: <witness> = impl_witness @C.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.impl_witness.78c: <witness> = impl_witness @C.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.580: %I.type = facet_value %C, (%I.impl_witness.ab4) [concrete]
-// CHECK:STDOUT:   %.3ac: type = fn_type_with_self_type %I.F.type, %I.facet.580 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.6f2: <witness> = impl_witness file.%I.impl_witness_table [concrete]
+// CHECK:STDOUT:   %I.facet.18b: %I.type = facet_value %C, (%I.impl_witness.78c) [concrete]
+// CHECK:STDOUT:   %.129: type = fn_type_with_self_type %I.F.type, %I.facet.18b [concrete]
+// CHECK:STDOUT:   %I.impl_witness.c84: <witness> = impl_witness file.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.029: %I.type = facet_value %C, (%I.impl_witness.6f2) [concrete]
+// CHECK:STDOUT:   %I.facet.4d2: %I.type = facet_value %C, (%I.impl_witness.c84) [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -83,12 +83,12 @@ fn G() {
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.770 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.1bf [concrete] {} {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@C.as.I.impl.770.%C.as.I.impl.F.decl), @C.as.I.impl.770 [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.6f2]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@C.as.I.impl.1bf.%C.as.I.impl.F.decl), @C.as.I.impl.1bf [concrete]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.c84]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -103,9 +103,9 @@ fn G() {
 // CHECK:STDOUT:   witness = (%I.F.decl)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl.a21: %Self.ref as %I.ref;
+// CHECK:STDOUT: impl @C.as.I.impl.11c: %Self.ref as %I.ref;
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl.770: %C.ref as %I.ref {
+// CHECK:STDOUT: impl @C.as.I.impl.1bf: %C.ref as %I.ref {
 // CHECK:STDOUT:   %C.as.I.impl.F.decl: %C.as.I.impl.F.type = fn_decl @C.as.I.impl.F [concrete = constants.%C.as.I.impl.F] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -114,12 +114,12 @@ fn G() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C {
-// CHECK:STDOUT:   impl_decl @C.as.I.impl.a21 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.I.impl.11c [concrete] {} {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl.a21 [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.ab4]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (), @C.as.I.impl.11c [concrete]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness.78c]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -127,7 +127,7 @@ fn G() {
 // CHECK:STDOUT:   .Self = constants.%C
 // CHECK:STDOUT:   .I = <poisoned>
 // CHECK:STDOUT:   .F = <poisoned>
-// CHECK:STDOUT:   extend @C.as.I.impl.a21.%I.ref
+// CHECK:STDOUT:   extend @C.as.I.impl.11c.%I.ref
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
@@ -138,7 +138,7 @@ fn G() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.3ac = impl_witness_access constants.%I.impl_witness.ab4, element0 [concrete = <error>]
+// CHECK:STDOUT:   %impl.elem0: %.129 = impl_witness_access constants.%I.impl_witness.78c, element0 [concrete = <error>]
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -151,11 +151,11 @@ fn G() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.3ac = impl_witness_access constants.%I.impl_witness.ab4, element0 [concrete = <error>]
+// CHECK:STDOUT:   %impl.elem0: %.129 = impl_witness_access constants.%I.impl_witness.78c, element0 [concrete = <error>]
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.029) {}
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.4d2) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/lookup/generic.carbon b/toolchain/check/testdata/impl/lookup/generic.carbon
index 79c73b63a855..ecb78fabb0e1 100644
--- a/toolchain/check/testdata/impl/lookup/generic.carbon
+++ b/toolchain/check/testdata/impl/lookup/generic.carbon
@@ -133,7 +133,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.28f: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.7c4: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
@@ -142,22 +142,22 @@ fn G(x: A) {
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.ec7: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %HasF.impl_witness.672: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T) [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type.3fd: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T) [symbolic]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.c98: %T.as.HasF.impl.F.type.3fd = struct_value () [symbolic]
-// CHECK:STDOUT:   %HasF.facet.216: %HasF.type = facet_value %T, (%HasF.impl_witness.ec7) [symbolic]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type.b56: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.343: %T.as.HasF.impl.F.type.b56 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HasF.facet.bac: %HasF.type = facet_value %T, (%HasF.impl_witness.672) [symbolic]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.6e4: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type.2e4: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.f13: %T.as.HasF.impl.F.type.2e4 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.facet.fa2: %HasF.type = facet_value %empty_struct_type, (%HasF.impl_witness.6e4) [concrete]
-// CHECK:STDOUT:   %.e02: type = fn_type_with_self_type %HasF.F.type, %HasF.facet.fa2 [concrete]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.specific_fn: <specific function> = specific_function %T.as.HasF.impl.F.f13, @T.as.HasF.impl.F(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %HasF.impl_witness.b6e: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type.61c: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.cd5: %T.as.HasF.impl.F.type.61c = struct_value () [concrete]
+// CHECK:STDOUT:   %HasF.facet.e55: %HasF.type = facet_value %empty_struct_type, (%HasF.impl_witness.b6e) [concrete]
+// CHECK:STDOUT:   %.b41: type = fn_type_with_self_type %HasF.F.type, %HasF.facet.e55 [concrete]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.specific_fn: <specific function> = specific_function %T.as.HasF.impl.F.cd5, @T.as.HasF.impl.F(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -185,7 +185,7 @@ fn G(x: A) {
 // CHECK:STDOUT:     %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (@T.as.HasF.impl.%T.as.HasF.impl.F.decl), @T.as.HasF.impl [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @T.as.HasF.impl(constants.%T) [symbolic = @T.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.ec7)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @T.as.HasF.impl(constants.%T) [symbolic = @T.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.672)]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.a96 = value_param_pattern %x.patt, call_param0 [concrete]
@@ -202,8 +202,8 @@ fn G(x: A) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %HasF.F.decl: %HasF.F.type = fn_decl @HasF.F [concrete = constants.%HasF.F] {
-// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.28f) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.28f) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.7c4) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.7c4) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
@@ -223,14 +223,14 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @T.as.HasF.impl(%T.loc8_14.2: type) {
 // CHECK:STDOUT:   %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.ec7)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.672)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %T.as.HasF.impl.F.type (constants.%T.as.HasF.impl.F.type.3fd)]
-// CHECK:STDOUT:   %T.as.HasF.impl.F: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.3fd) = struct_value () [symbolic = %T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.c98)]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %T.as.HasF.impl.F.type (constants.%T.as.HasF.impl.F.type.b56)]
+// CHECK:STDOUT:   %T.as.HasF.impl.F: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.b56) = struct_value () [symbolic = %T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.343)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %T.ref as %HasF.ref {
-// CHECK:STDOUT:     %T.as.HasF.impl.F.decl: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.3fd) = fn_decl @T.as.HasF.impl.F [symbolic = @T.as.HasF.impl.%T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.c98)] {
+// CHECK:STDOUT:     %T.as.HasF.impl.F.decl: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.b56) = fn_decl @T.as.HasF.impl.F [symbolic = @T.as.HasF.impl.%T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.343)] {
 // CHECK:STDOUT:       %self.patt: @T.as.HasF.impl.F.%pattern_type (%pattern_type.7dc) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @T.as.HasF.impl.F.%pattern_type (%pattern_type.7dc) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -248,7 +248,7 @@ fn G(x: A) {
 // CHECK:STDOUT: generic fn @HasF.F(@HasF.%Self: %HasF.type) {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.28f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.7c4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -271,7 +271,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %x.ref: %empty_struct_type = name_ref x, %x
 // CHECK:STDOUT:   %HasF.ref: type = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.type]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type = name_ref F, @HasF.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.e02 = impl_witness_access constants.%HasF.impl_witness.6e4, element0 [concrete = constants.%T.as.HasF.impl.F.f13]
+// CHECK:STDOUT:   %impl.elem0: %.b41 = impl_witness_access constants.%HasF.impl_witness.b6e, element0 [concrete = constants.%T.as.HasF.impl.F.cd5]
 // CHECK:STDOUT:   %bound_method.loc13_4: <bound method> = bound_method %x.ref, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @T.as.HasF.impl.F(constants.%empty_struct_type) [concrete = constants.%T.as.HasF.impl.F.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_14: <bound method> = bound_method %x.ref, %specific_fn
@@ -282,16 +282,16 @@ fn G(x: A) {
 // CHECK:STDOUT: specific @HasF.F(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%T
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.ec7
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.672
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.3fd
-// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.c98
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.b56
+// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.343
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl.F(constants.%T) {
@@ -299,19 +299,19 @@ fn G(x: A) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet.216) {
-// CHECK:STDOUT:   %Self => constants.%HasF.facet.216
+// CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet.bac) {
+// CHECK:STDOUT:   %Self => constants.%HasF.facet.bac
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%empty_struct_type
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.6e4
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.b6e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.2e4
-// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.f13
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.61c
+// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.cd5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl.F(constants.%empty_struct_type) {
@@ -326,9 +326,9 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.f0c: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.308: type = facet_access_type %Self.f0c [symbolic]
-// CHECK:STDOUT:   %pattern_type.28f: type = pattern_type %Self.as_type.308 [symbolic]
+// CHECK:STDOUT:   %Self.fc4: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.978: type = facet_access_type %Self.fc4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.7c4: type = pattern_type %Self.as_type.978 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
@@ -337,28 +337,28 @@ fn G(x: A) {
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.ec7: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %HasF.impl_witness.672: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T) [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type.3fd: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T) [symbolic]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.c98: %T.as.HasF.impl.F.type.3fd = struct_value () [symbolic]
-// CHECK:STDOUT:   %HasF.facet.216: %HasF.type = facet_value %T, (%HasF.impl_witness.ec7) [symbolic]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type.b56: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.343: %T.as.HasF.impl.F.type.b56 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HasF.facet.bac: %HasF.type = facet_value %T, (%HasF.impl_witness.672) [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.6e4: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type.2e4: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.f13: %T.as.HasF.impl.F.type.2e4 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.facet.fa2: %HasF.type = facet_value %empty_struct_type, (%HasF.impl_witness.6e4) [concrete]
-// CHECK:STDOUT:   %.e02: type = fn_type_with_self_type %HasF.F.type, %HasF.facet.fa2 [concrete]
-// CHECK:STDOUT:   %T.as.HasF.impl.F.specific_fn: <specific function> = specific_function %T.as.HasF.impl.F.f13, @T.as.HasF.impl.F(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %HasF.impl_witness.b6e: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type.61c: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.cd5: %T.as.HasF.impl.F.type.61c = struct_value () [concrete]
+// CHECK:STDOUT:   %HasF.facet.e55: %HasF.type = facet_value %empty_struct_type, (%HasF.impl_witness.b6e) [concrete]
+// CHECK:STDOUT:   %.b41: type = fn_type_with_self_type %HasF.F.type, %HasF.facet.e55 [concrete]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.specific_fn: <specific function> = specific_function %T.as.HasF.impl.F.cd5, @T.as.HasF.impl.F(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -388,7 +388,7 @@ fn G(x: A) {
 // CHECK:STDOUT:     %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (@T.as.HasF.impl.%T.as.HasF.impl.F.decl), @T.as.HasF.impl [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @T.as.HasF.impl(constants.%T) [symbolic = @T.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.ec7)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @T.as.HasF.impl(constants.%T) [symbolic = @T.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.672)]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.a96 = value_param_pattern %x.patt, call_param0 [concrete]
@@ -409,25 +409,25 @@ fn G(x: A) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f0c]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fc4]
 // CHECK:STDOUT:   %HasF.F.decl: %HasF.F.type = fn_decl @HasF.F [concrete = constants.%HasF.F] {
-// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.28f) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.28f) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @HasF.F.%pattern_type (%pattern_type.28f) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @HasF.F.%pattern_type (%pattern_type.28f) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.7c4) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.7c4) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @HasF.F.%pattern_type (%pattern_type.7c4) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @HasF.F.%pattern_type (%pattern_type.7c4) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc5_25: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:     %Self.as_type.loc5_25: type = facet_access_type %Self.ref.loc5_25 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:     %.loc5_25: type = converted %Self.ref.loc5_25, %Self.as_type.loc5_25 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)] {
-// CHECK:STDOUT:       %Self.ref.loc5_14: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref.loc5_14 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref.loc5_14, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
+// CHECK:STDOUT:     %Self.ref.loc5_25: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:     %Self.as_type.loc5_25: type = facet_access_type %Self.ref.loc5_25 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:     %.loc5_25: type = converted %Self.ref.loc5_25, %Self.as_type.loc5_25 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)] {
+// CHECK:STDOUT:       %Self.ref.loc5_14: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref.loc5_14 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref.loc5_14, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = bind_name self, %self.param
-// CHECK:STDOUT:     %return.param: ref @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = return_slot %return.param
+// CHECK:STDOUT:     %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = bind_name self, %self.param
+// CHECK:STDOUT:     %return.param: ref @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %HasF.assoc_type = assoc_entity element0, %HasF.F.decl [concrete = constants.%assoc0.97a]
 // CHECK:STDOUT:
@@ -439,14 +439,14 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @T.as.HasF.impl(%T.loc8_14.2: type) {
 // CHECK:STDOUT:   %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.ec7)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.672)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %T.as.HasF.impl.F.type (constants.%T.as.HasF.impl.F.type.3fd)]
-// CHECK:STDOUT:   %T.as.HasF.impl.F: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.3fd) = struct_value () [symbolic = %T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.c98)]
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %T.as.HasF.impl.F.type (constants.%T.as.HasF.impl.F.type.b56)]
+// CHECK:STDOUT:   %T.as.HasF.impl.F: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.b56) = struct_value () [symbolic = %T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.343)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %T.ref as %HasF.ref {
-// CHECK:STDOUT:     %T.as.HasF.impl.F.decl: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.3fd) = fn_decl @T.as.HasF.impl.F [symbolic = @T.as.HasF.impl.%T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.c98)] {
+// CHECK:STDOUT:     %T.as.HasF.impl.F.decl: @T.as.HasF.impl.%T.as.HasF.impl.F.type (%T.as.HasF.impl.F.type.b56) = fn_decl @T.as.HasF.impl.F [symbolic = @T.as.HasF.impl.%T.as.HasF.impl.F (constants.%T.as.HasF.impl.F.343)] {
 // CHECK:STDOUT:       %self.patt: @T.as.HasF.impl.F.%pattern_type (%pattern_type.7dc) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @T.as.HasF.impl.F.%pattern_type (%pattern_type.7dc) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @T.as.HasF.impl.F.%pattern_type (%pattern_type.7dc) = return_slot_pattern [concrete]
@@ -468,11 +468,11 @@ fn G(x: A) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HasF.F(@HasF.%Self: %HasF.type) {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.28f)]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.7c4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308)) -> @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308);
+// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978)) -> @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @T.as.HasF.impl.F(@T.as.HasF.impl.%T.loc8_14.2: type) {
@@ -494,7 +494,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %x.ref: %empty_struct_type = name_ref x, %x
 // CHECK:STDOUT:   %HasF.ref: type = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.type]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type = name_ref F, @HasF.%assoc0 [concrete = constants.%assoc0.97a]
-// CHECK:STDOUT:   %impl.elem0: %.e02 = impl_witness_access constants.%HasF.impl_witness.6e4, element0 [concrete = constants.%T.as.HasF.impl.F.f13]
+// CHECK:STDOUT:   %impl.elem0: %.b41 = impl_witness_access constants.%HasF.impl_witness.b6e, element0 [concrete = constants.%T.as.HasF.impl.F.cd5]
 // CHECK:STDOUT:   %bound_method.loc13_11: <bound method> = bound_method %x.ref, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @T.as.HasF.impl.F(constants.%empty_struct_type) [concrete = constants.%T.as.HasF.impl.F.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_21.1: <bound method> = bound_method %x.ref, %specific_fn
@@ -503,27 +503,27 @@ fn G(x: A) {
 // CHECK:STDOUT:   %.loc13_21.2: ref %empty_struct_type = temporary %.loc13_21.1, %T.as.HasF.impl.F.call
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   %.loc13_22: %empty_struct_type = converted %T.as.HasF.impl.F.call, %empty_struct [concrete = constants.%empty_struct]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_21.2, constants.%T.as.Destroy.impl.Op.d5a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc13_21.2, constants.%T.as.Destroy.impl.Op.24b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_21.2: <bound method> = bound_method %.loc13_21.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c28 = addr_of %.loc13_21.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc13_21.2(%addr)
 // CHECK:STDOUT:   return %.loc13_22
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.f0c) {
-// CHECK:STDOUT:   %Self => constants.%Self.f0c
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.308
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28f
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.fc4) {
+// CHECK:STDOUT:   %Self => constants.%Self.fc4
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.978
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%T
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.ec7
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.672
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.3fd
-// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.c98
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.b56
+// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.343
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl.F(constants.%T) {
@@ -531,19 +531,19 @@ fn G(x: A) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet.216) {
-// CHECK:STDOUT:   %Self => constants.%HasF.facet.216
+// CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet.bac) {
+// CHECK:STDOUT:   %Self => constants.%HasF.facet.bac
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%empty_struct_type
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.6e4
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.b6e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.2e4
-// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.f13
+// CHECK:STDOUT:   %T.as.HasF.impl.F.type => constants.%T.as.HasF.impl.F.type.61c
+// CHECK:STDOUT:   %T.as.HasF.impl.F => constants.%T.as.HasF.impl.F.cd5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl.F(constants.%empty_struct_type) {
@@ -558,9 +558,9 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.f0c: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.308: type = facet_access_type %Self.f0c [symbolic]
-// CHECK:STDOUT:   %pattern_type.28f: type = pattern_type %Self.as_type.308 [symbolic]
+// CHECK:STDOUT:   %Self.fc4: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.978: type = facet_access_type %Self.fc4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.7c4: type = pattern_type %Self.as_type.978 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
@@ -581,22 +581,22 @@ fn G(x: A) {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.834: <witness> = impl_witness file.%HasF.impl_witness_table, @C.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %HasF.impl_witness.ce1: <witness> = impl_witness file.%HasF.impl_witness_table, @C.as.HasF.impl(%T) [symbolic]
 // CHECK:STDOUT:   %pattern_type.e5e: type = pattern_type %C.f2e [symbolic]
-// CHECK:STDOUT:   %C.as.HasF.impl.F.type.8fe: type = fn_type @C.as.HasF.impl.F, @C.as.HasF.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.HasF.impl.F.92a: %C.as.HasF.impl.F.type.8fe = struct_value () [symbolic]
-// CHECK:STDOUT:   %HasF.facet.766: %HasF.type = facet_value %C.f2e, (%HasF.impl_witness.834) [symbolic]
+// CHECK:STDOUT:   %C.as.HasF.impl.F.type.4f6: type = fn_type @C.as.HasF.impl.F, @C.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.HasF.impl.F.7e6: %C.as.HasF.impl.F.type.4f6 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HasF.facet.a2c: %HasF.type = facet_value %C.f2e, (%HasF.impl_witness.ce1) [symbolic]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %C.7a7: type = class_type @C, @C(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %pattern_type.99a: type = pattern_type %C.7a7 [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.0de: <witness> = impl_witness file.%HasF.impl_witness_table, @C.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.HasF.impl.F.type.2e5: type = fn_type @C.as.HasF.impl.F, @C.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %C.as.HasF.impl.F.c77: %C.as.HasF.impl.F.type.2e5 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.facet.672: %HasF.type = facet_value %C.7a7, (%HasF.impl_witness.0de) [concrete]
-// CHECK:STDOUT:   %.0c7: type = fn_type_with_self_type %HasF.F.type, %HasF.facet.672 [concrete]
-// CHECK:STDOUT:   %C.as.HasF.impl.F.specific_fn: <specific function> = specific_function %C.as.HasF.impl.F.c77, @C.as.HasF.impl.F(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %HasF.impl_witness.c41: <witness> = impl_witness file.%HasF.impl_witness_table, @C.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.HasF.impl.F.type.7c4: type = fn_type @C.as.HasF.impl.F, @C.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %C.as.HasF.impl.F.a98: %C.as.HasF.impl.F.type.7c4 = struct_value () [concrete]
+// CHECK:STDOUT:   %HasF.facet.eb0: %HasF.type = facet_value %C.7a7, (%HasF.impl_witness.c41) [concrete]
+// CHECK:STDOUT:   %.28b: type = fn_type_with_self_type %HasF.F.type, %HasF.facet.eb0 [concrete]
+// CHECK:STDOUT:   %C.as.HasF.impl.F.specific_fn: <specific function> = specific_function %C.as.HasF.impl.F.a98, @C.as.HasF.impl.F(%empty_struct_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -634,7 +634,7 @@ fn G(x: A) {
 // CHECK:STDOUT:     %T.loc10_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc10_14.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (@C.as.HasF.impl.%C.as.HasF.impl.F.decl), @C.as.HasF.impl [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @C.as.HasF.impl(constants.%T) [symbolic = @C.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.834)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @C.as.HasF.impl(constants.%T) [symbolic = @C.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.ce1)]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.99a = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.99a = value_param_pattern %x.patt, call_param0 [concrete]
@@ -651,18 +651,18 @@ fn G(x: A) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f0c]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fc4]
 // CHECK:STDOUT:   %HasF.F.decl: %HasF.F.type = fn_decl @HasF.F [concrete = constants.%HasF.F] {
-// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.28f) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.28f) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.7c4) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.7c4) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)] {
-// CHECK:STDOUT:       %Self.ref: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
+// CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)] {
+// CHECK:STDOUT:       %Self.ref: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %HasF.assoc_type = assoc_entity element0, %HasF.F.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -704,14 +704,14 @@ fn G(x: A) {
 // CHECK:STDOUT: generic impl @C.as.HasF.impl(%T.loc10_14.2: type) {
 // CHECK:STDOUT:   %T.loc10_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc10_14.1 (constants.%T)]
 // CHECK:STDOUT:   %C.loc10_27.1: type = class_type @C, @C(%T.loc10_14.1) [symbolic = %C.loc10_27.1 (constants.%C.f2e)]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @C.as.HasF.impl(%T.loc10_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.834)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @C.as.HasF.impl(%T.loc10_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.ce1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.HasF.impl.F.type: type = fn_type @C.as.HasF.impl.F, @C.as.HasF.impl(%T.loc10_14.1) [symbolic = %C.as.HasF.impl.F.type (constants.%C.as.HasF.impl.F.type.8fe)]
-// CHECK:STDOUT:   %C.as.HasF.impl.F: @C.as.HasF.impl.%C.as.HasF.impl.F.type (%C.as.HasF.impl.F.type.8fe) = struct_value () [symbolic = %C.as.HasF.impl.F (constants.%C.as.HasF.impl.F.92a)]
+// CHECK:STDOUT:   %C.as.HasF.impl.F.type: type = fn_type @C.as.HasF.impl.F, @C.as.HasF.impl(%T.loc10_14.1) [symbolic = %C.as.HasF.impl.F.type (constants.%C.as.HasF.impl.F.type.4f6)]
+// CHECK:STDOUT:   %C.as.HasF.impl.F: @C.as.HasF.impl.%C.as.HasF.impl.F.type (%C.as.HasF.impl.F.type.4f6) = struct_value () [symbolic = %C.as.HasF.impl.F (constants.%C.as.HasF.impl.F.7e6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %C.loc10_27.2 as %HasF.ref {
-// CHECK:STDOUT:     %C.as.HasF.impl.F.decl: @C.as.HasF.impl.%C.as.HasF.impl.F.type (%C.as.HasF.impl.F.type.8fe) = fn_decl @C.as.HasF.impl.F [symbolic = @C.as.HasF.impl.%C.as.HasF.impl.F (constants.%C.as.HasF.impl.F.92a)] {
+// CHECK:STDOUT:     %C.as.HasF.impl.F.decl: @C.as.HasF.impl.%C.as.HasF.impl.F.type (%C.as.HasF.impl.F.type.4f6) = fn_decl @C.as.HasF.impl.F [symbolic = @C.as.HasF.impl.%C.as.HasF.impl.F (constants.%C.as.HasF.impl.F.7e6)] {
 // CHECK:STDOUT:       %self.patt: @C.as.HasF.impl.F.%pattern_type (%pattern_type.e5e) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.HasF.impl.F.%pattern_type (%pattern_type.e5e) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -745,11 +745,11 @@ fn G(x: A) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HasF.F(@HasF.%Self: %HasF.type) {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.28f)]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.7c4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308));
+// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.as.Destroy.impl.Op(@C.%T.loc8_9.2: type) {
@@ -782,7 +782,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %x.ref: %C.7a7 = name_ref x, %x
 // CHECK:STDOUT:   %HasF.ref: type = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.type]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type = name_ref F, @HasF.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.0c7 = impl_witness_access constants.%HasF.impl_witness.0de, element0 [concrete = constants.%C.as.HasF.impl.F.c77]
+// CHECK:STDOUT:   %impl.elem0: %.28b = impl_witness_access constants.%HasF.impl_witness.c41, element0 [concrete = constants.%C.as.HasF.impl.F.a98]
 // CHECK:STDOUT:   %bound_method.loc15_4: <bound method> = bound_method %x.ref, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @C.as.HasF.impl.F(constants.%empty_struct_type) [concrete = constants.%C.as.HasF.impl.F.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_14: <bound method> = bound_method %x.ref, %specific_fn
@@ -790,10 +790,10 @@ fn G(x: A) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.f0c) {
-// CHECK:STDOUT:   %Self => constants.%Self.f0c
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.308
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28f
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.fc4) {
+// CHECK:STDOUT:   %Self => constants.%Self.fc4
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.978
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%T) {
@@ -818,11 +818,11 @@ fn G(x: A) {
 // CHECK:STDOUT: specific @C.as.HasF.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc10_14.1 => constants.%T
 // CHECK:STDOUT:   %C.loc10_27.1 => constants.%C.f2e
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.834
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.ce1
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.HasF.impl.F.type => constants.%C.as.HasF.impl.F.type.8fe
-// CHECK:STDOUT:   %C.as.HasF.impl.F => constants.%C.as.HasF.impl.F.92a
+// CHECK:STDOUT:   %C.as.HasF.impl.F.type => constants.%C.as.HasF.impl.F.type.4f6
+// CHECK:STDOUT:   %C.as.HasF.impl.F => constants.%C.as.HasF.impl.F.7e6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.HasF.impl.F(constants.%T) {
@@ -831,8 +831,8 @@ fn G(x: A) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e5e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet.766) {
-// CHECK:STDOUT:   %Self => constants.%HasF.facet.766
+// CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet.a2c) {
+// CHECK:STDOUT:   %Self => constants.%HasF.facet.a2c
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%C.f2e
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e5e
 // CHECK:STDOUT: }
@@ -846,11 +846,11 @@ fn G(x: A) {
 // CHECK:STDOUT: specific @C.as.HasF.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T.loc10_14.1 => constants.%empty_struct_type
 // CHECK:STDOUT:   %C.loc10_27.1 => constants.%C.7a7
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.0de
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.c41
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.HasF.impl.F.type => constants.%C.as.HasF.impl.F.type.2e5
-// CHECK:STDOUT:   %C.as.HasF.impl.F => constants.%C.as.HasF.impl.F.c77
+// CHECK:STDOUT:   %C.as.HasF.impl.F.type => constants.%C.as.HasF.impl.F.type.7c4
+// CHECK:STDOUT:   %C.as.HasF.impl.F => constants.%C.as.HasF.impl.F.a98
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.HasF.impl.F(constants.%empty_struct_type) {
@@ -871,36 +871,36 @@ fn G(x: A) {
 // CHECK:STDOUT:   %HasF.type.fe3: type = generic_interface_type @HasF [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %HasF.generic: %HasF.type.fe3 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.type.901: type = facet_type <@HasF, @HasF(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.322: %HasF.type.901 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.322 [symbolic]
-// CHECK:STDOUT:   %pattern_type.dfb: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %HasF.type.cc6: type = facet_type <@HasF, @HasF(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.759: %HasF.type.cc6 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.759 [symbolic]
+// CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %HasF.F.type.46c: type = fn_type @HasF.F, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %HasF.F.823: %HasF.F.type.46c = struct_value () [symbolic]
 // CHECK:STDOUT:   %HasF.assoc_type.dd8: type = assoc_entity_type @HasF, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.d31: %HasF.assoc_type.dd8 = assoc_entity element0, @HasF.%HasF.F.decl [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %HasF.type.901 [symbolic]
-// CHECK:STDOUT:   %HasF.impl_witness.55c: <witness> = impl_witness file.%HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %HasF.type.cc6 [symbolic]
+// CHECK:STDOUT:   %HasF.impl_witness.f50: <witness> = impl_witness file.%HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(%T) [symbolic]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type.6c8: type = fn_type @empty_struct_type.as.HasF.impl.F, @empty_struct_type.as.HasF.impl(%T) [symbolic]
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.008: %empty_struct_type.as.HasF.impl.F.type.6c8 = struct_value () [symbolic]
-// CHECK:STDOUT:   %HasF.facet.566: %HasF.type.901 = facet_value %empty_struct_type, (%HasF.impl_witness.55c) [symbolic]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type.242: type = fn_type @empty_struct_type.as.HasF.impl.F, @empty_struct_type.as.HasF.impl(%T) [symbolic]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.ee3: %empty_struct_type.as.HasF.impl.F.type.242 = struct_value () [symbolic]
+// CHECK:STDOUT:   %HasF.facet.57f: %HasF.type.cc6 = facet_value %empty_struct_type, (%HasF.impl_witness.f50) [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.type.072: type = facet_type <@HasF, @HasF(%empty_struct_type)> [concrete]
-// CHECK:STDOUT:   %Self.a46: %HasF.type.072 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %HasF.type.cb8: type = facet_type <@HasF, @HasF(%empty_struct_type)> [concrete]
+// CHECK:STDOUT:   %Self.6da: %HasF.type.cb8 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type.b0b: type = fn_type @HasF.F, @HasF(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %HasF.F.418: %HasF.F.type.b0b = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.assoc_type.9e4: type = assoc_entity_type @HasF, @HasF(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %assoc0.f76: %HasF.assoc_type.9e4 = assoc_entity element0, @HasF.%HasF.F.decl [concrete]
-// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %HasF.type.072 [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness.25d: <witness> = impl_witness file.%HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type.a13: type = fn_type @empty_struct_type.as.HasF.impl.F, @empty_struct_type.as.HasF.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.8c6: %empty_struct_type.as.HasF.impl.F.type.a13 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.facet.07d: %HasF.type.072 = facet_value %empty_struct_type, (%HasF.impl_witness.25d) [concrete]
-// CHECK:STDOUT:   %.21f: type = fn_type_with_self_type %HasF.F.type.b0b, %HasF.facet.07d [concrete]
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.specific_fn: <specific function> = specific_function %empty_struct_type.as.HasF.impl.F.8c6, @empty_struct_type.as.HasF.impl.F(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %HasF.type.cb8 [concrete]
+// CHECK:STDOUT:   %HasF.impl_witness.fbd: <witness> = impl_witness file.%HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type.b25: type = fn_type @empty_struct_type.as.HasF.impl.F, @empty_struct_type.as.HasF.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.4a6: %empty_struct_type.as.HasF.impl.F.type.b25 = struct_value () [concrete]
+// CHECK:STDOUT:   %HasF.facet.a57: %HasF.type.cb8 = facet_value %empty_struct_type, (%HasF.impl_witness.fbd) [concrete]
+// CHECK:STDOUT:   %.7ce: type = fn_type_with_self_type %HasF.F.type.b0b, %HasF.facet.a57 [concrete]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.specific_fn: <specific function> = specific_function %empty_struct_type.as.HasF.impl.F.4a6, @empty_struct_type.as.HasF.impl.F(%empty_struct_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -930,12 +930,12 @@ fn G(x: A) {
 // CHECK:STDOUT:     %.loc8_25.2: type = converted %.loc8_25.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %HasF.ref: %HasF.type.fe3 = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc8_14.2 [symbolic = %T.loc8_14.1 (constants.%T)]
-// CHECK:STDOUT:     %HasF.type.loc8_36.2: type = facet_type <@HasF, @HasF(constants.%T)> [symbolic = %HasF.type.loc8_36.1 (constants.%HasF.type.901)]
+// CHECK:STDOUT:     %HasF.type.loc8_36.2: type = facet_type <@HasF, @HasF(constants.%T)> [symbolic = %HasF.type.loc8_36.1 (constants.%HasF.type.cc6)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (@empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F.decl), @empty_struct_type.as.HasF.impl [concrete]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(constants.%T) [symbolic = @empty_struct_type.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.55c)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness %HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(constants.%T) [symbolic = @empty_struct_type.as.HasF.impl.%HasF.impl_witness (constants.%HasF.impl_witness.f50)]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = binding_pattern x [concrete]
 // CHECK:STDOUT:     %x.param_patt: %pattern_type.a96 = value_param_pattern %x.patt, call_param0 [concrete]
@@ -953,23 +953,23 @@ fn G(x: A) {
 // CHECK:STDOUT:   %T.loc4_16.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_16.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T.loc4_16.1)> [symbolic = %HasF.type (constants.%HasF.type.901)]
-// CHECK:STDOUT:   %Self.2: @HasF.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.322)]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T.loc4_16.1)> [symbolic = %HasF.type (constants.%HasF.type.cc6)]
+// CHECK:STDOUT:   %Self.2: @HasF.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.759)]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F, @HasF(%T.loc4_16.1) [symbolic = %HasF.F.type (constants.%HasF.F.type.46c)]
 // CHECK:STDOUT:   %HasF.F: @HasF.%HasF.F.type (%HasF.F.type.46c) = struct_value () [symbolic = %HasF.F (constants.%HasF.F.823)]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF, @HasF(%T.loc4_16.1) [symbolic = %HasF.assoc_type (constants.%HasF.assoc_type.dd8)]
 // CHECK:STDOUT:   %assoc0.loc5_21.2: @HasF.%HasF.assoc_type (%HasF.assoc_type.dd8) = assoc_entity element0, %HasF.F.decl [symbolic = %assoc0.loc5_21.2 (constants.%assoc0.d31)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.322)]
+// CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.759)]
 // CHECK:STDOUT:     %HasF.F.decl: @HasF.%HasF.F.type (%HasF.F.type.46c) = fn_decl @HasF.F [symbolic = @HasF.%HasF.F (constants.%HasF.F.823)] {
-// CHECK:STDOUT:       %self.patt: @HasF.F.%pattern_type (%pattern_type.dfb) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @HasF.F.%pattern_type (%pattern_type.dfb) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @HasF.F.%pattern_type (%pattern_type.9e0) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @HasF.F.%pattern_type (%pattern_type.9e0) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc5_14.1: type = splice_block %.loc5_14.3 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc5_14.2: @HasF.F.%HasF.type (%HasF.type.901) = specific_constant @HasF.%Self.1, @HasF(constants.%T) [symbolic = %Self (constants.%Self.322)]
-// CHECK:STDOUT:         %Self.ref: @HasF.F.%HasF.type (%HasF.type.901) = name_ref Self, %.loc5_14.2 [symbolic = %Self (constants.%Self.322)]
+// CHECK:STDOUT:         %.loc5_14.2: @HasF.F.%HasF.type (%HasF.type.cc6) = specific_constant @HasF.%Self.1, @HasF(constants.%T) [symbolic = %Self (constants.%Self.759)]
+// CHECK:STDOUT:         %Self.ref: @HasF.F.%HasF.type (%HasF.type.cc6) = name_ref Self, %.loc5_14.2 [symbolic = %Self (constants.%Self.759)]
 // CHECK:STDOUT:         %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc5_14.3: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -986,16 +986,16 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @empty_struct_type.as.HasF.impl(%T.loc8_14.2: type) {
 // CHECK:STDOUT:   %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
-// CHECK:STDOUT:   %HasF.type.loc8_36.1: type = facet_type <@HasF, @HasF(%T.loc8_14.1)> [symbolic = %HasF.type.loc8_36.1 (constants.%HasF.type.901)]
+// CHECK:STDOUT:   %HasF.type.loc8_36.1: type = facet_type <@HasF, @HasF(%T.loc8_14.1)> [symbolic = %HasF.type.loc8_36.1 (constants.%HasF.type.cc6)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %HasF.type.loc8_36.1 [symbolic = %require_complete (constants.%require_complete)]
-// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.55c)]
+// CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @empty_struct_type.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness.f50)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type: type = fn_type @empty_struct_type.as.HasF.impl.F, @empty_struct_type.as.HasF.impl(%T.loc8_14.1) [symbolic = %empty_struct_type.as.HasF.impl.F.type (constants.%empty_struct_type.as.HasF.impl.F.type.6c8)]
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F: @empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F.type (%empty_struct_type.as.HasF.impl.F.type.6c8) = struct_value () [symbolic = %empty_struct_type.as.HasF.impl.F (constants.%empty_struct_type.as.HasF.impl.F.008)]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type: type = fn_type @empty_struct_type.as.HasF.impl.F, @empty_struct_type.as.HasF.impl(%T.loc8_14.1) [symbolic = %empty_struct_type.as.HasF.impl.F.type (constants.%empty_struct_type.as.HasF.impl.F.type.242)]
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F: @empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F.type (%empty_struct_type.as.HasF.impl.F.type.242) = struct_value () [symbolic = %empty_struct_type.as.HasF.impl.F (constants.%empty_struct_type.as.HasF.impl.F.ee3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %.loc8_25.2 as %HasF.type.loc8_36.2 {
-// CHECK:STDOUT:     %empty_struct_type.as.HasF.impl.F.decl: @empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F.type (%empty_struct_type.as.HasF.impl.F.type.6c8) = fn_decl @empty_struct_type.as.HasF.impl.F [symbolic = @empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F (constants.%empty_struct_type.as.HasF.impl.F.008)] {
+// CHECK:STDOUT:     %empty_struct_type.as.HasF.impl.F.decl: @empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F.type (%empty_struct_type.as.HasF.impl.F.type.242) = fn_decl @empty_struct_type.as.HasF.impl.F [symbolic = @empty_struct_type.as.HasF.impl.%empty_struct_type.as.HasF.impl.F (constants.%empty_struct_type.as.HasF.impl.F.ee3)] {
 // CHECK:STDOUT:       %self.patt: %pattern_type.a96 = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: %pattern_type.a96 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
@@ -1010,12 +1010,12 @@ fn G(x: A) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasF.F(@HasF.%T.loc4_16.2: type, @HasF.%Self.1: @HasF.%HasF.type (%HasF.type.901)) {
+// CHECK:STDOUT: generic fn @HasF.F(@HasF.%T.loc4_16.2: type, @HasF.%Self.1: @HasF.%HasF.type (%HasF.type.cc6)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T)> [symbolic = %HasF.type (constants.%HasF.type.901)]
-// CHECK:STDOUT:   %Self: @HasF.F.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.322)]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T)> [symbolic = %HasF.type (constants.%HasF.type.cc6)]
+// CHECK:STDOUT:   %Self: @HasF.F.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.759)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.dfb)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.9e0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -1035,10 +1035,10 @@ fn G(x: A) {
 // CHECK:STDOUT:   %HasF.ref: %HasF.type.fe3 = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.generic]
 // CHECK:STDOUT:   %.loc13_12: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %.loc13_13: type = converted %.loc13_12, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(constants.%empty_struct_type)> [concrete = constants.%HasF.type.072]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(constants.%empty_struct_type)> [concrete = constants.%HasF.type.cb8]
 // CHECK:STDOUT:   %.loc13_14: %HasF.assoc_type.9e4 = specific_constant @HasF.%assoc0.loc5_21.1, @HasF(constants.%empty_struct_type) [concrete = constants.%assoc0.f76]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type.9e4 = name_ref F, %.loc13_14 [concrete = constants.%assoc0.f76]
-// CHECK:STDOUT:   %impl.elem0: %.21f = impl_witness_access constants.%HasF.impl_witness.25d, element0 [concrete = constants.%empty_struct_type.as.HasF.impl.F.8c6]
+// CHECK:STDOUT:   %impl.elem0: %.7ce = impl_witness_access constants.%HasF.impl_witness.fbd, element0 [concrete = constants.%empty_struct_type.as.HasF.impl.F.4a6]
 // CHECK:STDOUT:   %bound_method.loc13_4: <bound method> = bound_method %x.ref, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @empty_struct_type.as.HasF.impl.F(constants.%empty_struct_type) [concrete = constants.%empty_struct_type.as.HasF.impl.F.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_18: <bound method> = bound_method %x.ref, %specific_fn
@@ -1050,39 +1050,39 @@ fn G(x: A) {
 // CHECK:STDOUT:   %T.loc4_16.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.901
-// CHECK:STDOUT:   %Self.2 => constants.%Self.322
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cc6
+// CHECK:STDOUT:   %Self.2 => constants.%Self.759
 // CHECK:STDOUT:   %HasF.F.type => constants.%HasF.F.type.46c
 // CHECK:STDOUT:   %HasF.F => constants.%HasF.F.823
 // CHECK:STDOUT:   %HasF.assoc_type => constants.%HasF.assoc_type.dd8
 // CHECK:STDOUT:   %assoc0.loc5_21.2 => constants.%assoc0.d31
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%Self.322) {
+// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%Self.759) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.901
-// CHECK:STDOUT:   %Self => constants.%Self.322
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cc6
+// CHECK:STDOUT:   %Self => constants.%Self.759
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.dfb
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9e0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @empty_struct_type.as.HasF.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%T
-// CHECK:STDOUT:   %HasF.type.loc8_36.1 => constants.%HasF.type.901
+// CHECK:STDOUT:   %HasF.type.loc8_36.1 => constants.%HasF.type.cc6
 // CHECK:STDOUT:   %require_complete => constants.%require_complete
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.55c
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.f50
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type => constants.%empty_struct_type.as.HasF.impl.F.type.6c8
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F => constants.%empty_struct_type.as.HasF.impl.F.008
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type => constants.%empty_struct_type.as.HasF.impl.F.type.242
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F => constants.%empty_struct_type.as.HasF.impl.F.ee3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @empty_struct_type.as.HasF.impl.F(constants.%T) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%HasF.facet.566) {
+// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%HasF.facet.57f) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.901
-// CHECK:STDOUT:   %Self => constants.%HasF.facet.566
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cc6
+// CHECK:STDOUT:   %Self => constants.%HasF.facet.57f
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%empty_struct_type
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a96
 // CHECK:STDOUT: }
@@ -1091,8 +1091,8 @@ fn G(x: A) {
 // CHECK:STDOUT:   %T.loc4_16.1 => constants.%empty_struct_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.072
-// CHECK:STDOUT:   %Self.2 => constants.%Self.a46
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cb8
+// CHECK:STDOUT:   %Self.2 => constants.%Self.6da
 // CHECK:STDOUT:   %HasF.F.type => constants.%HasF.F.type.b0b
 // CHECK:STDOUT:   %HasF.F => constants.%HasF.F.418
 // CHECK:STDOUT:   %HasF.assoc_type => constants.%HasF.assoc_type.9e4
@@ -1101,13 +1101,13 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @empty_struct_type.as.HasF.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%empty_struct_type
-// CHECK:STDOUT:   %HasF.type.loc8_36.1 => constants.%HasF.type.072
+// CHECK:STDOUT:   %HasF.type.loc8_36.1 => constants.%HasF.type.cb8
 // CHECK:STDOUT:   %require_complete => constants.%complete_type
-// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.25d
+// CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness.fbd
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type => constants.%empty_struct_type.as.HasF.impl.F.type.a13
-// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F => constants.%empty_struct_type.as.HasF.impl.F.8c6
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F.type => constants.%empty_struct_type.as.HasF.impl.F.type.b25
+// CHECK:STDOUT:   %empty_struct_type.as.HasF.impl.F => constants.%empty_struct_type.as.HasF.impl.F.4a6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @empty_struct_type.as.HasF.impl.F(constants.%empty_struct_type) {
@@ -1120,7 +1120,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.28f: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.7c4: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF [concrete]
@@ -1184,8 +1184,8 @@ fn G(x: A) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %HasF.F.decl: %HasF.F.type = fn_decl @HasF.F [concrete = constants.%HasF.F] {
-// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.28f) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.28f) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.7c4) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.7c4) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
@@ -1231,7 +1231,7 @@ fn G(x: A) {
 // CHECK:STDOUT: generic fn @HasF.F(@HasF.%Self: %HasF.type) {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.28f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.7c4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -1260,7 +1260,7 @@ fn G(x: A) {
 // CHECK:STDOUT: specific @HasF.F(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl(constants.%T, constants.%U) {
@@ -1286,25 +1286,25 @@ fn G(x: A) {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %HasF.type.fe3: type = generic_interface_type @HasF [concrete]
 // CHECK:STDOUT:   %HasF.generic: %HasF.type.fe3 = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.type.901: type = facet_type <@HasF, @HasF(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.322: %HasF.type.901 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.859: type = facet_access_type %Self.322 [symbolic]
-// CHECK:STDOUT:   %pattern_type.dfb: type = pattern_type %Self.as_type.859 [symbolic]
+// CHECK:STDOUT:   %HasF.type.cc6: type = facet_type <@HasF, @HasF(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.759: %HasF.type.cc6 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4d7: type = facet_access_type %Self.759 [symbolic]
+// CHECK:STDOUT:   %pattern_type.9e0: type = pattern_type %Self.as_type.4d7 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type.46c: type = fn_type @HasF.F, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %HasF.F.823: %HasF.F.type.46c = struct_value () [symbolic]
 // CHECK:STDOUT:   %HasF.assoc_type.dd8: type = assoc_entity_type @HasF, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.d31: %HasF.assoc_type.dd8 = assoc_entity element0, @HasF.%HasF.F.decl [symbolic]
-// CHECK:STDOUT:   %require_complete.03f: <witness> = require_complete_type %HasF.type.901 [symbolic]
+// CHECK:STDOUT:   %require_complete.616: <witness> = require_complete_type %HasF.type.cc6 [symbolic]
 // CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T) [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %T.as.HasF.impl.F.type: type = fn_type @T.as.HasF.impl.F, @T.as.HasF.impl(%T) [symbolic]
 // CHECK:STDOUT:   %T.as.HasF.impl.F: %T.as.HasF.impl.F.type = struct_value () [symbolic]
-// CHECK:STDOUT:   %HasF.facet: %HasF.type.901 = facet_value %T, (%HasF.impl_witness) [symbolic]
+// CHECK:STDOUT:   %HasF.facet: %HasF.type.cc6 = facet_value %T, (%HasF.impl_witness) [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b44: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.cbd: <witness> = impl_witness @A.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.6db: type = ptr_type %A [concrete]
 // CHECK:STDOUT:   %pattern_type.5f8: type = pattern_type %ptr.6db [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
@@ -1312,7 +1312,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.40d: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.190: <witness> = impl_witness @B.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e79: type = ptr_type %B [concrete]
 // CHECK:STDOUT:   %pattern_type.960: type = pattern_type %ptr.e79 [concrete]
 // CHECK:STDOUT:   %B.as.Destroy.impl.Op.type: type = fn_type @B.as.Destroy.impl.Op [concrete]
@@ -1320,8 +1320,8 @@ fn G(x: A) {
 // CHECK:STDOUT:   %pattern_type.c10: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasF.type.2f5: type = facet_type <@HasF, @HasF(%B)> [concrete]
-// CHECK:STDOUT:   %Self.188: %HasF.type.2f5 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %HasF.type.43e: type = facet_type <@HasF, @HasF(%B)> [concrete]
+// CHECK:STDOUT:   %Self.3a0: %HasF.type.43e = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type.1c6: type = fn_type @HasF.F, @HasF(%B) [concrete]
 // CHECK:STDOUT:   %HasF.F.7cf: %HasF.F.type.1c6 = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.assoc_type.1af: type = assoc_entity_type @HasF, @HasF(%B) [concrete]
@@ -1358,7 +1358,7 @@ fn G(x: A) {
 // CHECK:STDOUT:     %T.ref.loc8_24: type = name_ref T, %T.loc8_14.2 [symbolic = %T.loc8_14.1 (constants.%T)]
 // CHECK:STDOUT:     %HasF.ref: %HasF.type.fe3 = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.generic]
 // CHECK:STDOUT:     %T.ref.loc8_34: type = name_ref T, %T.loc8_14.2 [symbolic = %T.loc8_14.1 (constants.%T)]
-// CHECK:STDOUT:     %HasF.type.loc8_35.2: type = facet_type <@HasF, @HasF(constants.%T)> [symbolic = %HasF.type.loc8_35.1 (constants.%HasF.type.901)]
+// CHECK:STDOUT:     %HasF.type.loc8_35.2: type = facet_type <@HasF, @HasF(constants.%T)> [symbolic = %HasF.type.loc8_35.1 (constants.%HasF.type.cc6)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc8_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
 // CHECK:STDOUT:   }
@@ -1380,27 +1380,27 @@ fn G(x: A) {
 // CHECK:STDOUT:   %T.loc4_16.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_16.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T.loc4_16.1)> [symbolic = %HasF.type (constants.%HasF.type.901)]
-// CHECK:STDOUT:   %Self.2: @HasF.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.322)]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T.loc4_16.1)> [symbolic = %HasF.type (constants.%HasF.type.cc6)]
+// CHECK:STDOUT:   %Self.2: @HasF.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.759)]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F, @HasF(%T.loc4_16.1) [symbolic = %HasF.F.type (constants.%HasF.F.type.46c)]
 // CHECK:STDOUT:   %HasF.F: @HasF.%HasF.F.type (%HasF.F.type.46c) = struct_value () [symbolic = %HasF.F (constants.%HasF.F.823)]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF, @HasF(%T.loc4_16.1) [symbolic = %HasF.assoc_type (constants.%HasF.assoc_type.dd8)]
 // CHECK:STDOUT:   %assoc0.loc5_21.2: @HasF.%HasF.assoc_type (%HasF.assoc_type.dd8) = assoc_entity element0, %HasF.F.decl [symbolic = %assoc0.loc5_21.2 (constants.%assoc0.d31)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.322)]
+// CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.759)]
 // CHECK:STDOUT:     %HasF.F.decl: @HasF.%HasF.F.type (%HasF.F.type.46c) = fn_decl @HasF.F [symbolic = @HasF.%HasF.F (constants.%HasF.F.823)] {
-// CHECK:STDOUT:       %self.patt: @HasF.F.%pattern_type (%pattern_type.dfb) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @HasF.F.%pattern_type (%pattern_type.dfb) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @HasF.F.%pattern_type (%pattern_type.9e0) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @HasF.F.%pattern_type (%pattern_type.9e0) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.859) = value_param call_param0
-// CHECK:STDOUT:       %.loc5_14.1: type = splice_block %.loc5_14.3 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.859)] {
-// CHECK:STDOUT:         %.loc5_14.2: @HasF.F.%HasF.type (%HasF.type.901) = specific_constant @HasF.%Self.1, @HasF(constants.%T) [symbolic = %Self (constants.%Self.322)]
-// CHECK:STDOUT:         %Self.ref: @HasF.F.%HasF.type (%HasF.type.901) = name_ref Self, %.loc5_14.2 [symbolic = %Self (constants.%Self.322)]
-// CHECK:STDOUT:         %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.859)]
-// CHECK:STDOUT:         %.loc5_14.3: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.859)]
+// CHECK:STDOUT:       %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.4d7) = value_param call_param0
+// CHECK:STDOUT:       %.loc5_14.1: type = splice_block %.loc5_14.3 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4d7)] {
+// CHECK:STDOUT:         %.loc5_14.2: @HasF.F.%HasF.type (%HasF.type.cc6) = specific_constant @HasF.%Self.1, @HasF(constants.%T) [symbolic = %Self (constants.%Self.759)]
+// CHECK:STDOUT:         %Self.ref: @HasF.F.%HasF.type (%HasF.type.cc6) = name_ref Self, %.loc5_14.2 [symbolic = %Self (constants.%Self.759)]
+// CHECK:STDOUT:         %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4d7)]
+// CHECK:STDOUT:         %.loc5_14.3: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4d7)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.859) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.4d7) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %assoc0.loc5_21.1: @HasF.%HasF.assoc_type (%HasF.assoc_type.dd8) = assoc_entity element0, %HasF.F.decl [symbolic = %assoc0.loc5_21.2 (constants.%assoc0.d31)]
 // CHECK:STDOUT:
@@ -1413,8 +1413,8 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @T.as.HasF.impl(%T.loc8_14.2: type) {
 // CHECK:STDOUT:   %T.loc8_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_14.1 (constants.%T)]
-// CHECK:STDOUT:   %HasF.type.loc8_35.1: type = facet_type <@HasF, @HasF(%T.loc8_14.1)> [symbolic = %HasF.type.loc8_35.1 (constants.%HasF.type.901)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %HasF.type.loc8_35.1 [symbolic = %require_complete (constants.%require_complete.03f)]
+// CHECK:STDOUT:   %HasF.type.loc8_35.1: type = facet_type <@HasF, @HasF(%T.loc8_14.1)> [symbolic = %HasF.type.loc8_35.1 (constants.%HasF.type.cc6)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %HasF.type.loc8_35.1 [symbolic = %require_complete (constants.%require_complete.616)]
 // CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table, @T.as.HasF.impl(%T.loc8_14.1) [symbolic = %HasF.impl_witness (constants.%HasF.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -1473,7 +1473,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%A [concrete = constants.%A]
 // CHECK:STDOUT:   impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b44]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.cbd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1485,7 +1485,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%B [concrete = constants.%B]
 // CHECK:STDOUT:   impl_decl @B.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@B.as.Destroy.impl.%B.as.Destroy.impl.Op.decl), @B.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.40d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.190]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1493,14 +1493,14 @@ fn G(x: A) {
 // CHECK:STDOUT:   .Self = constants.%B
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasF.F(@HasF.%T.loc4_16.2: type, @HasF.%Self.1: @HasF.%HasF.type (%HasF.type.901)) {
+// CHECK:STDOUT: generic fn @HasF.F(@HasF.%T.loc4_16.2: type, @HasF.%Self.1: @HasF.%HasF.type (%HasF.type.cc6)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T)> [symbolic = %HasF.type (constants.%HasF.type.901)]
-// CHECK:STDOUT:   %Self: @HasF.F.%HasF.type (%HasF.type.901) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.322)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.859)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.dfb)]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(%T)> [symbolic = %HasF.type (constants.%HasF.type.cc6)]
+// CHECK:STDOUT:   %Self: @HasF.F.%HasF.type (%HasF.type.cc6) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.759)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4d7)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.9e0)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.859));
+// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.4d7));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @T.as.HasF.impl.F(@T.as.HasF.impl.%T.loc8_14.2: type) {
@@ -1525,7 +1525,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %x.ref: %A = name_ref x, %x
 // CHECK:STDOUT:   %HasF.ref: %HasF.type.fe3 = name_ref HasF, file.%HasF.decl [concrete = constants.%HasF.generic]
 // CHECK:STDOUT:   %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B]
-// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(constants.%B)> [concrete = constants.%HasF.type.2f5]
+// CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF, @HasF(constants.%B)> [concrete = constants.%HasF.type.43e]
 // CHECK:STDOUT:   %.loc22: %HasF.assoc_type.1af = specific_constant @HasF.%assoc0.loc5_21.1, @HasF(constants.%B) [concrete = constants.%assoc0.402]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type.1af = name_ref F, %.loc22 [concrete = constants.%assoc0.402]
 // CHECK:STDOUT:   return
@@ -1535,26 +1535,26 @@ fn G(x: A) {
 // CHECK:STDOUT:   %T.loc4_16.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.901
-// CHECK:STDOUT:   %Self.2 => constants.%Self.322
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cc6
+// CHECK:STDOUT:   %Self.2 => constants.%Self.759
 // CHECK:STDOUT:   %HasF.F.type => constants.%HasF.F.type.46c
 // CHECK:STDOUT:   %HasF.F => constants.%HasF.F.823
 // CHECK:STDOUT:   %HasF.assoc_type => constants.%HasF.assoc_type.dd8
 // CHECK:STDOUT:   %assoc0.loc5_21.2 => constants.%assoc0.d31
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%Self.322) {
+// CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%Self.759) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.901
-// CHECK:STDOUT:   %Self => constants.%Self.322
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.859
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.dfb
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cc6
+// CHECK:STDOUT:   %Self => constants.%Self.759
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.4d7
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9e0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.HasF.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_14.1 => constants.%T
-// CHECK:STDOUT:   %HasF.type.loc8_35.1 => constants.%HasF.type.901
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.03f
+// CHECK:STDOUT:   %HasF.type.loc8_35.1 => constants.%HasF.type.cc6
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.616
 // CHECK:STDOUT:   %HasF.impl_witness => constants.%HasF.impl_witness
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -1569,7 +1569,7 @@ fn G(x: A) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasF.F(constants.%T, constants.%HasF.facet) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.901
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.cc6
 // CHECK:STDOUT:   %Self => constants.%HasF.facet
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%T
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
@@ -1579,8 +1579,8 @@ fn G(x: A) {
 // CHECK:STDOUT:   %T.loc4_16.1 => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.2f5
-// CHECK:STDOUT:   %Self.2 => constants.%Self.188
+// CHECK:STDOUT:   %HasF.type => constants.%HasF.type.43e
+// CHECK:STDOUT:   %Self.2 => constants.%Self.3a0
 // CHECK:STDOUT:   %HasF.F.type => constants.%HasF.F.type.1c6
 // CHECK:STDOUT:   %HasF.F => constants.%HasF.F.7cf
 // CHECK:STDOUT:   %HasF.assoc_type => constants.%HasF.assoc_type.1af
diff --git a/toolchain/check/testdata/impl/lookup/impl_forall.carbon b/toolchain/check/testdata/impl/lookup/impl_forall.carbon
index 01c302075298..467e082b64f4 100644
--- a/toolchain/check/testdata/impl/lookup/impl_forall.carbon
+++ b/toolchain/check/testdata/impl/lookup/impl_forall.carbon
@@ -51,7 +51,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %A.elem.1ceb36.1: type = unbound_element_type %A.13025a.1, %T [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d93: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.7e1: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.ca9: type = ptr_type %A.13025a.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.09b: type = pattern_type %ptr.ca9 [symbolic]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%T) [symbolic]
@@ -61,10 +61,10 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325e65.1: type = facet_type <@I, @I(%U)> [symbolic]
-// CHECK:STDOUT:   %Self.209206.1: %I.type.325e65.1 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.928: type = facet_access_type %Self.209206.1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type.928 [symbolic]
+// CHECK:STDOUT:   %I.type.328ca8.1: type = facet_type <@I, @I(%U)> [symbolic]
+// CHECK:STDOUT:   %Self.0d86b8.1: %I.type.328ca8.1 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.ec9: type = facet_access_type %Self.0d86b8.1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type.ec9 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %U [symbolic]
 // CHECK:STDOUT:   %I.F.type.2aef59.1: type = fn_type @I.F, @I(%U) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2dd4.1: %I.F.type.2aef59.1 = struct_value () [symbolic]
@@ -72,19 +72,19 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %assoc0.8f0422.1: %I.assoc_type.1e5078.1 = assoc_entity element0, @I.%I.F.decl [symbolic]
 // CHECK:STDOUT:   %V: type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %A.13025a.2: type = class_type @A, @A(%V) [symbolic]
-// CHECK:STDOUT:   %I.type.325e65.2: type = facet_type <@I, @I(%V)> [symbolic]
-// CHECK:STDOUT:   %Self.209206.2: %I.type.325e65.2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328ca8.2: type = facet_type <@I, @I(%V)> [symbolic]
+// CHECK:STDOUT:   %Self.0d86b8.2: %I.type.328ca8.2 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2aef59.2: type = fn_type @I.F, @I(%V) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2dd4.2: %I.F.type.2aef59.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5078.2: type = assoc_entity_type @I, @I(%V) [symbolic]
 // CHECK:STDOUT:   %assoc0.8f0422.2: %I.assoc_type.1e5078.2 = assoc_entity element0, @I.%I.F.decl [symbolic]
-// CHECK:STDOUT:   %require_complete.cfebb2.1: <witness> = require_complete_type %I.type.325e65.2 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.40ab31.1: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%V) [symbolic]
+// CHECK:STDOUT:   %require_complete.3e6bdc.1: <witness> = require_complete_type %I.type.328ca8.2 [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.c31b26.1: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%V) [symbolic]
 // CHECK:STDOUT:   %pattern_type.68d8d3.1: type = pattern_type %A.13025a.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.2: type = pattern_type %V [symbolic]
-// CHECK:STDOUT:   %A.as.I.impl.F.type.0fea45.1: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%V) [symbolic]
-// CHECK:STDOUT:   %A.as.I.impl.F.d6ae34.1: %A.as.I.impl.F.type.0fea45.1 = struct_value () [symbolic]
-// CHECK:STDOUT:   %I.facet.de3: %I.type.325e65.2 = facet_value %A.13025a.2, (%I.impl_witness.40ab31.1) [symbolic]
+// CHECK:STDOUT:   %A.as.I.impl.F.type.d34923.1: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%V) [symbolic]
+// CHECK:STDOUT:   %A.as.I.impl.F.9f6f75.1: %A.as.I.impl.F.type.d34923.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %I.facet.cb9: %I.type.328ca8.2 = facet_value %A.13025a.2, (%I.impl_witness.c31b26.1) [symbolic]
 // CHECK:STDOUT:   %require_complete.4aeca8.2: <witness> = require_complete_type %V [symbolic]
 // CHECK:STDOUT:   %A.elem.1ceb36.2: type = unbound_element_type %A.13025a.2, %V [symbolic]
 // CHECK:STDOUT:   %struct_type.n.848971.2: type = struct_type {.n: %V} [symbolic]
@@ -101,21 +101,21 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %struct_type.n.848971.3: type = struct_type {.n: %W} [symbolic]
 // CHECK:STDOUT:   %complete_type.84bb3d.3: <witness> = complete_type_witness %struct_type.n.848971.3 [symbolic]
 // CHECK:STDOUT:   %require_complete.5b8aee.2: <witness> = require_complete_type %A.13025a.3 [symbolic]
-// CHECK:STDOUT:   %I.type.325e65.3: type = facet_type <@I, @I(%W)> [symbolic]
-// CHECK:STDOUT:   %Self.209206.3: %I.type.325e65.3 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328ca8.3: type = facet_type <@I, @I(%W)> [symbolic]
+// CHECK:STDOUT:   %Self.0d86b8.3: %I.type.328ca8.3 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2aef59.3: type = fn_type @I.F, @I(%W) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2dd4.3: %I.F.type.2aef59.3 = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5078.3: type = assoc_entity_type @I, @I(%W) [symbolic]
 // CHECK:STDOUT:   %assoc0.8f0422.3: %I.assoc_type.1e5078.3 = assoc_entity element0, @I.%I.F.decl [symbolic]
-// CHECK:STDOUT:   %require_complete.cfebb2.2: <witness> = require_complete_type %I.type.325e65.3 [symbolic]
-// CHECK:STDOUT:   %I.impl_witness.40ab31.2: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%W) [symbolic]
-// CHECK:STDOUT:   %A.as.I.impl.F.type.0fea45.2: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%W) [symbolic]
-// CHECK:STDOUT:   %A.as.I.impl.F.d6ae34.2: %A.as.I.impl.F.type.0fea45.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %require_complete.3e6bdc.2: <witness> = require_complete_type %I.type.328ca8.3 [symbolic]
+// CHECK:STDOUT:   %I.impl_witness.c31b26.2: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%W) [symbolic]
+// CHECK:STDOUT:   %A.as.I.impl.F.type.d34923.2: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%W) [symbolic]
+// CHECK:STDOUT:   %A.as.I.impl.F.9f6f75.2: %A.as.I.impl.F.type.d34923.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %A.13025a.3, @I, @I(%W) [symbolic]
-// CHECK:STDOUT:   %I.facet.6d2: %I.type.325e65.3 = facet_value %A.13025a.3, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.fe1: type = fn_type_with_self_type %I.F.type.2aef59.3, %I.facet.6d2 [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.fe1 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.F(%W, %I.facet.6d2) [symbolic]
+// CHECK:STDOUT:   %I.facet.99d: %I.type.328ca8.3 = facet_value %A.13025a.3, (%I.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.02b: type = fn_type_with_self_type %I.F.type.2aef59.3, %I.facet.99d [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.02b = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @I.F(%W, %I.facet.99d) [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %A.235: type = class_type @A, @A(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %pattern_type.496: type = pattern_type %A.235 [concrete]
@@ -126,24 +126,24 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %A.elem.2af: type = unbound_element_type %A.235, %empty_struct_type [concrete]
 // CHECK:STDOUT:   %struct_type.n.91c: type = struct_type {.n: %empty_struct_type} [concrete]
 // CHECK:STDOUT:   %complete_type.0a6: <witness> = complete_type_witness %struct_type.n.91c [concrete]
-// CHECK:STDOUT:   %I.type.885: type = facet_type <@I, @I(%empty_struct_type)> [concrete]
-// CHECK:STDOUT:   %Self.4e2: %I.type.885 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.cba: type = facet_type <@I, @I(%empty_struct_type)> [concrete]
+// CHECK:STDOUT:   %Self.3aa: %I.type.cba = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.684: type = fn_type @I.F, @I(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %I.F.a8d: %I.F.type.684 = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type.22c: type = assoc_entity_type @I, @I(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %assoc0.722: %I.assoc_type.22c = assoc_entity element0, @I.%I.F.decl [concrete]
-// CHECK:STDOUT:   %complete_type.788: <witness> = complete_type_witness %I.type.885 [concrete]
-// CHECK:STDOUT:   %I.impl_witness.0f2: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %A.as.I.impl.F.type.875: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %A.as.I.impl.F.158: %A.as.I.impl.F.type.875 = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.bd5: %I.type.885 = facet_value %A.235, (%I.impl_witness.0f2) [concrete]
-// CHECK:STDOUT:   %.8fd: type = fn_type_with_self_type %I.F.type.684, %I.facet.bd5 [concrete]
-// CHECK:STDOUT:   %A.as.I.impl.F.specific_fn: <specific function> = specific_function %A.as.I.impl.F.158, @A.as.I.impl.F(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %complete_type.03e: <witness> = complete_type_witness %I.type.cba [concrete]
+// CHECK:STDOUT:   %I.impl_witness.365: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %A.as.I.impl.F.type.06e: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %A.as.I.impl.F.291: %A.as.I.impl.F.type.06e = struct_value () [concrete]
+// CHECK:STDOUT:   %I.facet.3c2: %I.type.cba = facet_value %A.235, (%I.impl_witness.365) [concrete]
+// CHECK:STDOUT:   %.a6c: type = fn_type_with_self_type %I.F.type.684, %I.facet.3c2 [concrete]
+// CHECK:STDOUT:   %A.as.I.impl.F.specific_fn: <specific function> = specific_function %A.as.I.impl.F.291, @A.as.I.impl.F(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -184,12 +184,12 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:     %A.loc11_27.2: type = class_type @A, @A(constants.%V) [symbolic = %A.loc11_27.1 (constants.%A.13025a.2)]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %V.ref.loc11_34: type = name_ref V, %V.loc11_14.2 [symbolic = %V.loc11_14.1 (constants.%V)]
-// CHECK:STDOUT:     %I.type.loc11_35.2: type = facet_type <@I, @I(constants.%V)> [symbolic = %I.type.loc11_35.1 (constants.%I.type.325e65.2)]
+// CHECK:STDOUT:     %I.type.loc11_35.2: type = facet_type <@I, @I(constants.%V)> [symbolic = %I.type.loc11_35.1 (constants.%I.type.328ca8.2)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %V.loc11_14.2: type = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.1 (constants.%V)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@A.as.I.impl.%A.as.I.impl.F.decl), @A.as.I.impl [concrete]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @A.as.I.impl(constants.%V) [symbolic = @A.as.I.impl.%I.impl_witness (constants.%I.impl_witness.40ab31.1)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table, @A.as.I.impl(constants.%V) [symbolic = @A.as.I.impl.%I.impl_witness (constants.%I.impl_witness.c31b26.1)]
 // CHECK:STDOUT:   %TestGeneric.decl: %TestGeneric.type = fn_decl @TestGeneric [concrete = constants.%TestGeneric] {
 // CHECK:STDOUT:     %W.patt: %pattern_type.98f = symbolic_binding_pattern W, 0 [concrete]
 // CHECK:STDOUT:     %a.patt: @TestGeneric.%pattern_type.loc17_26 (%pattern_type.68d8d3.2) = binding_pattern a [concrete]
@@ -235,30 +235,30 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %U.loc7_13.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_13.1 (constants.%U)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U.loc7_13.1)> [symbolic = %I.type (constants.%I.type.325e65.1)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325e65.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209206.1)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U.loc7_13.1)> [symbolic = %I.type (constants.%I.type.328ca8.1)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328ca8.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d86b8.1)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%U.loc7_13.1) [symbolic = %I.F.type (constants.%I.F.type.2aef59.1)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2aef59.1) = struct_value () [symbolic = %I.F (constants.%I.F.bb2dd4.1)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%U.loc7_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5078.1)]
 // CHECK:STDOUT:   %assoc0.loc8_26.2: @I.%I.assoc_type (%I.assoc_type.1e5078.1) = assoc_entity element0, %I.F.decl [symbolic = %assoc0.loc8_26.2 (constants.%assoc0.8f0422.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325e65.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209206.1)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328ca8.1) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d86b8.1)]
 // CHECK:STDOUT:     %I.F.decl: @I.%I.F.type (%I.F.type.2aef59.1) = fn_decl @I.F [symbolic = @I.%I.F (constants.%I.F.bb2dd4.1)] {
-// CHECK:STDOUT:       %self.patt: @I.F.%pattern_type.loc8_8 (%pattern_type.4be) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @I.F.%pattern_type.loc8_8 (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @I.F.%pattern_type.loc8_8 (%pattern_type.857) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @I.F.%pattern_type.loc8_8 (%pattern_type.857) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @I.F.%pattern_type.loc8_22 (%pattern_type.7dcd0a.1) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @I.F.%pattern_type.loc8_22 (%pattern_type.7dcd0a.1) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %U.ref: type = name_ref U, @I.%U.loc7_13.2 [symbolic = %U (constants.%U)]
-// CHECK:STDOUT:       %self.param: @I.F.%Self.as_type.loc8_14.1 (%Self.as_type.928) = value_param call_param0
-// CHECK:STDOUT:       %.loc8_14.1: type = splice_block %.loc8_14.3 [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.928)] {
-// CHECK:STDOUT:         %.loc8_14.2: @I.F.%I.type (%I.type.325e65.1) = specific_constant @I.%Self.1, @I(constants.%U) [symbolic = %Self (constants.%Self.209206.1)]
-// CHECK:STDOUT:         %Self.ref: @I.F.%I.type (%I.type.325e65.1) = name_ref Self, %.loc8_14.2 [symbolic = %Self (constants.%Self.209206.1)]
-// CHECK:STDOUT:         %Self.as_type.loc8_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.928)]
-// CHECK:STDOUT:         %.loc8_14.3: type = converted %Self.ref, %Self.as_type.loc8_14.2 [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.928)]
+// CHECK:STDOUT:       %self.param: @I.F.%Self.as_type.loc8_14.1 (%Self.as_type.ec9) = value_param call_param0
+// CHECK:STDOUT:       %.loc8_14.1: type = splice_block %.loc8_14.3 [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.ec9)] {
+// CHECK:STDOUT:         %.loc8_14.2: @I.F.%I.type (%I.type.328ca8.1) = specific_constant @I.%Self.1, @I(constants.%U) [symbolic = %Self (constants.%Self.0d86b8.1)]
+// CHECK:STDOUT:         %Self.ref: @I.F.%I.type (%I.type.328ca8.1) = name_ref Self, %.loc8_14.2 [symbolic = %Self (constants.%Self.0d86b8.1)]
+// CHECK:STDOUT:         %Self.as_type.loc8_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.ec9)]
+// CHECK:STDOUT:         %.loc8_14.3: type = converted %Self.ref, %Self.as_type.loc8_14.2 [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.ec9)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @I.F.%Self.as_type.loc8_14.1 (%Self.as_type.928) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @I.F.%Self.as_type.loc8_14.1 (%Self.as_type.ec9) = bind_name self, %self.param
 // CHECK:STDOUT:       %return.param: ref @I.F.%U (%U) = out_param call_param1
 // CHECK:STDOUT:       %return: ref @I.F.%U (%U) = return_slot %return.param
 // CHECK:STDOUT:     }
@@ -275,7 +275,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: generic impl @A.as.Destroy.impl(@A.%T.loc3_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %A: type = class_type @A, @A(%T) [symbolic = %A (constants.%A.13025a.1)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @A.%Destroy.impl_witness_table, @A.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.7e1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op, @A.as.Destroy.impl(%T) [symbolic = %A.as.Destroy.impl.Op.type (constants.%A.as.Destroy.impl.Op.type)]
@@ -304,16 +304,16 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: generic impl @A.as.I.impl(%V.loc11_14.2: type) {
 // CHECK:STDOUT:   %V.loc11_14.1: type = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.1 (constants.%V)]
 // CHECK:STDOUT:   %A.loc11_27.1: type = class_type @A, @A(%V.loc11_14.1) [symbolic = %A.loc11_27.1 (constants.%A.13025a.2)]
-// CHECK:STDOUT:   %I.type.loc11_35.1: type = facet_type <@I, @I(%V.loc11_14.1)> [symbolic = %I.type.loc11_35.1 (constants.%I.type.325e65.2)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc11_35.1 [symbolic = %require_complete (constants.%require_complete.cfebb2.1)]
-// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%V.loc11_14.1) [symbolic = %I.impl_witness (constants.%I.impl_witness.40ab31.1)]
+// CHECK:STDOUT:   %I.type.loc11_35.1: type = facet_type <@I, @I(%V.loc11_14.1)> [symbolic = %I.type.loc11_35.1 (constants.%I.type.328ca8.2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %I.type.loc11_35.1 [symbolic = %require_complete (constants.%require_complete.3e6bdc.1)]
+// CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table, @A.as.I.impl(%V.loc11_14.1) [symbolic = %I.impl_witness (constants.%I.impl_witness.c31b26.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.as.I.impl.F.type: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%V.loc11_14.1) [symbolic = %A.as.I.impl.F.type (constants.%A.as.I.impl.F.type.0fea45.1)]
-// CHECK:STDOUT:   %A.as.I.impl.F: @A.as.I.impl.%A.as.I.impl.F.type (%A.as.I.impl.F.type.0fea45.1) = struct_value () [symbolic = %A.as.I.impl.F (constants.%A.as.I.impl.F.d6ae34.1)]
+// CHECK:STDOUT:   %A.as.I.impl.F.type: type = fn_type @A.as.I.impl.F, @A.as.I.impl(%V.loc11_14.1) [symbolic = %A.as.I.impl.F.type (constants.%A.as.I.impl.F.type.d34923.1)]
+// CHECK:STDOUT:   %A.as.I.impl.F: @A.as.I.impl.%A.as.I.impl.F.type (%A.as.I.impl.F.type.d34923.1) = struct_value () [symbolic = %A.as.I.impl.F (constants.%A.as.I.impl.F.9f6f75.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %A.loc11_27.2 as %I.type.loc11_35.2 {
-// CHECK:STDOUT:     %A.as.I.impl.F.decl: @A.as.I.impl.%A.as.I.impl.F.type (%A.as.I.impl.F.type.0fea45.1) = fn_decl @A.as.I.impl.F [symbolic = @A.as.I.impl.%A.as.I.impl.F (constants.%A.as.I.impl.F.d6ae34.1)] {
+// CHECK:STDOUT:     %A.as.I.impl.F.decl: @A.as.I.impl.%A.as.I.impl.F.type (%A.as.I.impl.F.type.d34923.1) = fn_decl @A.as.I.impl.F [symbolic = @A.as.I.impl.%A.as.I.impl.F (constants.%A.as.I.impl.F.9f6f75.1)] {
 // CHECK:STDOUT:       %self.patt: @A.as.I.impl.F.%pattern_type.loc12_8 (%pattern_type.68d8d3.1) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @A.as.I.impl.F.%pattern_type.loc12_8 (%pattern_type.68d8d3.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @A.as.I.impl.F.%pattern_type.loc12_22 (%pattern_type.7dcd0a.2) = return_slot_pattern [concrete]
@@ -350,7 +350,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%A.13025a.1 [symbolic = @A.as.Destroy.impl.%A (constants.%A.13025a.1)]
 // CHECK:STDOUT:     impl_decl @A.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@A.as.Destroy.impl.%A.as.Destroy.impl.Op.decl), @A.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%T) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.d93)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @A.as.Destroy.impl(constants.%T) [symbolic = @A.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.7e1)]
 // CHECK:STDOUT:     %complete_type.loc5_1.1: <witness> = complete_type_witness constants.%struct_type.n.848971.1 [symbolic = %complete_type.loc5_1.2 (constants.%complete_type.84bb3d.1)]
 // CHECK:STDOUT:     complete_type_witness = %complete_type.loc5_1.1
 // CHECK:STDOUT:
@@ -372,15 +372,15 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   fn(%self.param: @A.as.Destroy.impl.Op.%ptr (%ptr.ca9)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(@I.%U.loc7_13.2: type, @I.%Self.1: @I.%I.type (%I.type.325e65.1)) {
+// CHECK:STDOUT: generic fn @I.F(@I.%U.loc7_13.2: type, @I.%Self.1: @I.%I.type (%I.type.328ca8.1)) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U)> [symbolic = %I.type (constants.%I.type.325e65.1)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325e65.1) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209206.1)]
-// CHECK:STDOUT:   %Self.as_type.loc8_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.928)]
-// CHECK:STDOUT:   %pattern_type.loc8_8: type = pattern_type %Self.as_type.loc8_14.1 [symbolic = %pattern_type.loc8_8 (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%U)> [symbolic = %I.type (constants.%I.type.328ca8.1)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328ca8.1) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d86b8.1)]
+// CHECK:STDOUT:   %Self.as_type.loc8_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type.ec9)]
+// CHECK:STDOUT:   %pattern_type.loc8_8: type = pattern_type %Self.as_type.loc8_14.1 [symbolic = %pattern_type.loc8_8 (constants.%pattern_type.857)]
 // CHECK:STDOUT:   %pattern_type.loc8_22: type = pattern_type %U [symbolic = %pattern_type.loc8_22 (constants.%pattern_type.7dcd0a.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc8_14.1 (%Self.as_type.928)) -> @I.F.%U (%U);
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc8_14.1 (%Self.as_type.ec9)) -> @I.F.%U (%U);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @A.as.I.impl.F(@A.as.I.impl.%V.loc11_14.2: type) {
@@ -413,15 +413,15 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc17_35: <witness> = require_complete_type %W.loc17_16.1 [symbolic = %require_complete.loc17_35 (constants.%require_complete.4aeca8.3)]
 // CHECK:STDOUT:   %require_complete.loc17_27: <witness> = require_complete_type %A.loc17_32.1 [symbolic = %require_complete.loc17_27 (constants.%require_complete.5b8aee.2)]
-// CHECK:STDOUT:   %I.type.loc18_16.2: type = facet_type <@I, @I(%W.loc17_16.1)> [symbolic = %I.type.loc18_16.2 (constants.%I.type.325e65.3)]
-// CHECK:STDOUT:   %require_complete.loc18: <witness> = require_complete_type %I.type.loc18_16.2 [symbolic = %require_complete.loc18 (constants.%require_complete.cfebb2.2)]
+// CHECK:STDOUT:   %I.type.loc18_16.2: type = facet_type <@I, @I(%W.loc17_16.1)> [symbolic = %I.type.loc18_16.2 (constants.%I.type.328ca8.3)]
+// CHECK:STDOUT:   %require_complete.loc18: <witness> = require_complete_type %I.type.loc18_16.2 [symbolic = %require_complete.loc18 (constants.%require_complete.3e6bdc.2)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%W.loc17_16.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5078.3)]
 // CHECK:STDOUT:   %assoc0: @TestGeneric.%I.assoc_type (%I.assoc_type.1e5078.3) = assoc_entity element0, @I.%I.F.decl [symbolic = %assoc0 (constants.%assoc0.8f0422.3)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %A.loc17_32.1, @I, @I(%W.loc17_16.1) [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%W.loc17_16.1) [symbolic = %I.F.type (constants.%I.F.type.2aef59.3)]
-// CHECK:STDOUT:   %I.facet: @TestGeneric.%I.type.loc18_16.2 (%I.type.325e65.3) = facet_value %A.loc17_32.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet.6d2)]
-// CHECK:STDOUT:   %.loc18_11: type = fn_type_with_self_type %I.F.type, %I.facet [symbolic = %.loc18_11 (constants.%.fe1)]
-// CHECK:STDOUT:   %impl.elem0.loc18_11.2: @TestGeneric.%.loc18_11 (%.fe1) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %I.facet: @TestGeneric.%I.type.loc18_16.2 (%I.type.328ca8.3) = facet_value %A.loc17_32.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet.99d)]
+// CHECK:STDOUT:   %.loc18_11: type = fn_type_with_self_type %I.F.type, %I.facet [symbolic = %.loc18_11 (constants.%.02b)]
+// CHECK:STDOUT:   %impl.elem0.loc18_11.2: @TestGeneric.%.loc18_11 (%.02b) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc18_11.2: <specific function> = specific_impl_function %impl.elem0.loc18_11.2, @I.F(%W.loc17_16.1, %I.facet) [symbolic = %specific_impl_fn.loc18_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%a.param: @TestGeneric.%A.loc17_32.1 (%A.13025a.3)) -> @TestGeneric.%W.loc17_16.1 (%W) {
@@ -429,12 +429,12 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:     %a.ref: @TestGeneric.%A.loc17_32.1 (%A.13025a.3) = name_ref a, %a
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %W.ref.loc18: type = name_ref W, %W.loc17_16.2 [symbolic = %W.loc17_16.1 (constants.%W)]
-// CHECK:STDOUT:     %I.type.loc18_16.1: type = facet_type <@I, @I(constants.%W)> [symbolic = %I.type.loc18_16.2 (constants.%I.type.325e65.3)]
+// CHECK:STDOUT:     %I.type.loc18_16.1: type = facet_type <@I, @I(constants.%W)> [symbolic = %I.type.loc18_16.2 (constants.%I.type.328ca8.3)]
 // CHECK:STDOUT:     %.loc18_17: @TestGeneric.%I.assoc_type (%I.assoc_type.1e5078.3) = specific_constant @I.%assoc0.loc8_26.1, @I(constants.%W) [symbolic = %assoc0 (constants.%assoc0.8f0422.3)]
 // CHECK:STDOUT:     %F.ref: @TestGeneric.%I.assoc_type (%I.assoc_type.1e5078.3) = name_ref F, %.loc18_17 [symbolic = %assoc0 (constants.%assoc0.8f0422.3)]
-// CHECK:STDOUT:     %impl.elem0.loc18_11.1: @TestGeneric.%.loc18_11 (%.fe1) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_11.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc18_11.1: @TestGeneric.%.loc18_11 (%.02b) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_11.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc18_11: <bound method> = bound_method %a.ref, %impl.elem0.loc18_11.1
-// CHECK:STDOUT:     %specific_impl_fn.loc18_11.1: <specific function> = specific_impl_function %impl.elem0.loc18_11.1, @I.F(constants.%W, constants.%I.facet.6d2) [symbolic = %specific_impl_fn.loc18_11.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %specific_impl_fn.loc18_11.1: <specific function> = specific_impl_function %impl.elem0.loc18_11.1, @I.F(constants.%W, constants.%I.facet.99d) [symbolic = %specific_impl_fn.loc18_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc18_21: <bound method> = bound_method %a.ref, %specific_impl_fn.loc18_11.1
 // CHECK:STDOUT:     %.loc18_21: init @TestGeneric.%W.loc17_16.1 (%W) = call %bound_method.loc18_21(%a.ref)
 // CHECK:STDOUT:     %.loc18_22.1: @TestGeneric.%W.loc17_16.1 (%W) = value_of_initializer %.loc18_21
@@ -449,10 +449,10 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:   %.loc22_16: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %.loc22_17: type = converted %.loc22_16, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(constants.%empty_struct_type)> [concrete = constants.%I.type.885]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(constants.%empty_struct_type)> [concrete = constants.%I.type.cba]
 // CHECK:STDOUT:   %.loc22_18: %I.assoc_type.22c = specific_constant @I.%assoc0.loc8_26.1, @I(constants.%empty_struct_type) [concrete = constants.%assoc0.722]
 // CHECK:STDOUT:   %F.ref: %I.assoc_type.22c = name_ref F, %.loc22_18 [concrete = constants.%assoc0.722]
-// CHECK:STDOUT:   %impl.elem0: %.8fd = impl_witness_access constants.%I.impl_witness.0f2, element0 [concrete = constants.%A.as.I.impl.F.158]
+// CHECK:STDOUT:   %impl.elem0: %.a6c = impl_witness_access constants.%I.impl_witness.365, element0 [concrete = constants.%A.as.I.impl.F.291]
 // CHECK:STDOUT:   %bound_method.loc22_11: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @A.as.I.impl.F(constants.%empty_struct_type) [concrete = constants.%A.as.I.impl.F.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc22_22.1: <bound method> = bound_method %a.ref, %specific_fn
@@ -461,8 +461,8 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %.loc22_22.2: ref %empty_struct_type = temporary %.loc22_22.1, %A.as.I.impl.F.call
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
 // CHECK:STDOUT:   %.loc22_23: %empty_struct_type = converted %A.as.I.impl.F.call, %empty_struct [concrete = constants.%empty_struct]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc22_22.2, constants.%T.as.Destroy.impl.Op.d5a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc22_22.2, constants.%T.as.Destroy.impl.Op.24b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc22_22.2: <bound method> = bound_method %.loc22_22.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c28 = addr_of %.loc22_22.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc22_22.2(%addr)
@@ -476,7 +476,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: specific @A.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %A => constants.%A.13025a.1
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d93
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7e1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as.Destroy.impl.Op(constants.%T) {
@@ -490,12 +490,12 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %U.loc7_13.1 => constants.%U
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%U, constants.%Self.209206.1) {
+// CHECK:STDOUT: specific @I.F(constants.%U, constants.%Self.0d86b8.1) {
 // CHECK:STDOUT:   %U => constants.%U
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.1
-// CHECK:STDOUT:   %Self => constants.%Self.209206.1
-// CHECK:STDOUT:   %Self.as_type.loc8_14.1 => constants.%Self.as_type.928
-// CHECK:STDOUT:   %pattern_type.loc8_8 => constants.%pattern_type.4be
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.1
+// CHECK:STDOUT:   %Self => constants.%Self.0d86b8.1
+// CHECK:STDOUT:   %Self.as_type.loc8_14.1 => constants.%Self.as_type.ec9
+// CHECK:STDOUT:   %pattern_type.loc8_8 => constants.%pattern_type.857
 // CHECK:STDOUT:   %pattern_type.loc8_22 => constants.%pattern_type.7dcd0a.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -514,8 +514,8 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %U.loc7_13.1 => constants.%V
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %Self.2 => constants.%Self.209206.2
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %Self.2 => constants.%Self.0d86b8.2
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.2aef59.2
 // CHECK:STDOUT:   %I.F => constants.%I.F.bb2dd4.2
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.1e5078.2
@@ -525,13 +525,13 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: specific @A.as.I.impl(constants.%V) {
 // CHECK:STDOUT:   %V.loc11_14.1 => constants.%V
 // CHECK:STDOUT:   %A.loc11_27.1 => constants.%A.13025a.2
-// CHECK:STDOUT:   %I.type.loc11_35.1 => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.cfebb2.1
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.40ab31.1
+// CHECK:STDOUT:   %I.type.loc11_35.1 => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.3e6bdc.1
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.c31b26.1
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.as.I.impl.F.type => constants.%A.as.I.impl.F.type.0fea45.1
-// CHECK:STDOUT:   %A.as.I.impl.F => constants.%A.as.I.impl.F.d6ae34.1
+// CHECK:STDOUT:   %A.as.I.impl.F.type => constants.%A.as.I.impl.F.type.d34923.1
+// CHECK:STDOUT:   %A.as.I.impl.F => constants.%A.as.I.impl.F.9f6f75.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as.I.impl.F(constants.%V) {
@@ -541,10 +541,10 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %pattern_type.loc12_22 => constants.%pattern_type.7dcd0a.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%V, constants.%I.facet.de3) {
+// CHECK:STDOUT: specific @I.F(constants.%V, constants.%I.facet.cb9) {
 // CHECK:STDOUT:   %U => constants.%V
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.2
-// CHECK:STDOUT:   %Self => constants.%I.facet.de3
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.2
+// CHECK:STDOUT:   %Self => constants.%I.facet.cb9
 // CHECK:STDOUT:   %Self.as_type.loc8_14.1 => constants.%A.13025a.2
 // CHECK:STDOUT:   %pattern_type.loc8_8 => constants.%pattern_type.68d8d3.1
 // CHECK:STDOUT:   %pattern_type.loc8_22 => constants.%pattern_type.7dcd0a.2
@@ -572,8 +572,8 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %U.loc7_13.1 => constants.%W
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.3
-// CHECK:STDOUT:   %Self.2 => constants.%Self.209206.3
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.3
+// CHECK:STDOUT:   %Self.2 => constants.%Self.0d86b8.3
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.2aef59.3
 // CHECK:STDOUT:   %I.F => constants.%I.F.bb2dd4.3
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.1e5078.3
@@ -583,19 +583,19 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: specific @A.as.I.impl(constants.%W) {
 // CHECK:STDOUT:   %V.loc11_14.1 => constants.%W
 // CHECK:STDOUT:   %A.loc11_27.1 => constants.%A.13025a.3
-// CHECK:STDOUT:   %I.type.loc11_35.1 => constants.%I.type.325e65.3
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.cfebb2.2
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.40ab31.2
+// CHECK:STDOUT:   %I.type.loc11_35.1 => constants.%I.type.328ca8.3
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.3e6bdc.2
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.c31b26.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.as.I.impl.F.type => constants.%A.as.I.impl.F.type.0fea45.2
-// CHECK:STDOUT:   %A.as.I.impl.F => constants.%A.as.I.impl.F.d6ae34.2
+// CHECK:STDOUT:   %A.as.I.impl.F.type => constants.%A.as.I.impl.F.type.d34923.2
+// CHECK:STDOUT:   %A.as.I.impl.F => constants.%A.as.I.impl.F.9f6f75.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%W, constants.%I.facet.6d2) {
+// CHECK:STDOUT: specific @I.F(constants.%W, constants.%I.facet.99d) {
 // CHECK:STDOUT:   %U => constants.%W
-// CHECK:STDOUT:   %I.type => constants.%I.type.325e65.3
-// CHECK:STDOUT:   %Self => constants.%I.facet.6d2
+// CHECK:STDOUT:   %I.type => constants.%I.type.328ca8.3
+// CHECK:STDOUT:   %Self => constants.%I.facet.99d
 // CHECK:STDOUT:   %Self.as_type.loc8_14.1 => constants.%A.13025a.3
 // CHECK:STDOUT:   %pattern_type.loc8_8 => constants.%pattern_type.68d8d3.2
 // CHECK:STDOUT:   %pattern_type.loc8_22 => constants.%pattern_type.7dcd0a.3
@@ -616,8 +616,8 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %U.loc7_13.1 => constants.%empty_struct_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.885
-// CHECK:STDOUT:   %Self.2 => constants.%Self.4e2
+// CHECK:STDOUT:   %I.type => constants.%I.type.cba
+// CHECK:STDOUT:   %Self.2 => constants.%Self.3aa
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.684
 // CHECK:STDOUT:   %I.F => constants.%I.F.a8d
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.22c
@@ -627,13 +627,13 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT: specific @A.as.I.impl(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %V.loc11_14.1 => constants.%empty_struct_type
 // CHECK:STDOUT:   %A.loc11_27.1 => constants.%A.235
-// CHECK:STDOUT:   %I.type.loc11_35.1 => constants.%I.type.885
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.788
-// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.0f2
+// CHECK:STDOUT:   %I.type.loc11_35.1 => constants.%I.type.cba
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.03e
+// CHECK:STDOUT:   %I.impl_witness => constants.%I.impl_witness.365
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.as.I.impl.F.type => constants.%A.as.I.impl.F.type.875
-// CHECK:STDOUT:   %A.as.I.impl.F => constants.%A.as.I.impl.F.158
+// CHECK:STDOUT:   %A.as.I.impl.F.type => constants.%A.as.I.impl.F.type.06e
+// CHECK:STDOUT:   %A.as.I.impl.F => constants.%A.as.I.impl.F.291
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.as.I.impl.F(constants.%empty_struct_type) {
diff --git a/toolchain/check/testdata/impl/lookup/import.carbon b/toolchain/check/testdata/impl/lookup/import.carbon
index f45bf249e7e5..9a29a172e08f 100644
--- a/toolchain/check/testdata/impl/lookup/import.carbon
+++ b/toolchain/check/testdata/impl/lookup/import.carbon
@@ -227,9 +227,9 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.f0c: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.308: type = facet_access_type %Self.f0c [symbolic]
-// CHECK:STDOUT:   %pattern_type.28f: type = pattern_type %Self.as_type.308 [symbolic]
+// CHECK:STDOUT:   %Self.fc4: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.978: type = facet_access_type %Self.fc4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.7c4: type = pattern_type %Self.as_type.978 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF [concrete]
@@ -278,18 +278,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f0c]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fc4]
 // CHECK:STDOUT:   %HasF.F.decl: %HasF.F.type = fn_decl @HasF.F [concrete = constants.%HasF.F] {
-// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.28f) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.28f) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @HasF.F.%pattern_type (%pattern_type.7c4) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @HasF.F.%pattern_type (%pattern_type.7c4) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)] {
-// CHECK:STDOUT:       %Self.ref: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
+// CHECK:STDOUT:     %self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)] {
+// CHECK:STDOUT:       %Self.ref: %HasF.type = name_ref Self, @HasF.%Self [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %HasF.assoc_type = assoc_entity element0, %HasF.F.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -343,11 +343,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HasF.F(@HasF.%Self: %HasF.type) {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f0c)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.308)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.28f)]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.fc4)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.978)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.7c4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.308));
+// CHECK:STDOUT:   fn(%self.param: @HasF.F.%Self.as_type.loc5_14.1 (%Self.as_type.978));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
@@ -357,10 +357,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.f0c) {
-// CHECK:STDOUT:   %Self => constants.%Self.f0c
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.308
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.28f
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.fc4) {
+// CHECK:STDOUT:   %Self => constants.%Self.fc4
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.978
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7c4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet) {
@@ -373,9 +373,9 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [concrete]
-// CHECK:STDOUT:   %Self.d42: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.133: type = facet_access_type %Self.d42 [symbolic]
-// CHECK:STDOUT:   %pattern_type.293: type = pattern_type %Self.as_type.133 [symbolic]
+// CHECK:STDOUT:   %Self.f26: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.3c4: type = facet_access_type %Self.f26 [symbolic]
+// CHECK:STDOUT:   %pattern_type.16c: type = pattern_type %Self.as_type.3c4 [symbolic]
 // CHECK:STDOUT:   %HasG.G.type: type = fn_type @HasG.G [concrete]
 // CHECK:STDOUT:   %HasG.G: %HasG.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasG.assoc_type: type = assoc_entity_type @HasG [concrete]
@@ -391,26 +391,26 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %HasG.impl_witness.69b: <witness> = impl_witness file.%HasG.impl_witness_table.loc13 [concrete]
+// CHECK:STDOUT:   %HasG.impl_witness.814: <witness> = impl_witness file.%HasG.impl_witness_table.loc13 [concrete]
 // CHECK:STDOUT:   %pattern_type.8e5: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.HasG.impl.G.type: type = fn_type @C.as.HasG.impl.G [concrete]
 // CHECK:STDOUT:   %C.as.HasG.impl.G: %C.as.HasG.impl.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasG.facet.704: %HasG.type = facet_value %C, (%HasG.impl_witness.69b) [concrete]
+// CHECK:STDOUT:   %HasG.facet.103: %HasG.type = facet_value %C, (%HasG.impl_witness.814) [concrete]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.cf3: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b5a: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.7cf: type = facet_access_type %Self.cf3 [symbolic]
-// CHECK:STDOUT:   %pattern_type.dc3: type = pattern_type %Self.as_type.7cf [symbolic]
+// CHECK:STDOUT:   %Self.as_type.f8a: type = facet_access_type %Self.b5a [symbolic]
+// CHECK:STDOUT:   %pattern_type.d21: type = pattern_type %Self.as_type.f8a [symbolic]
 // CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness file.%HasF.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.510: type = pattern_type %D [concrete]
 // CHECK:STDOUT:   %D.as.HasF.impl.F.type: type = fn_type @D.as.HasF.impl.F [concrete]
 // CHECK:STDOUT:   %D.as.HasF.impl.F: %D.as.HasF.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.facet: %HasF.type = facet_value %D, (%HasF.impl_witness) [concrete]
-// CHECK:STDOUT:   %HasG.impl_witness.b2b: <witness> = impl_witness file.%HasG.impl_witness_table.loc23 [concrete]
+// CHECK:STDOUT:   %HasG.impl_witness.7d5: <witness> = impl_witness file.%HasG.impl_witness_table.loc23 [concrete]
 // CHECK:STDOUT:   %D.as.HasG.impl.G.type: type = fn_type @D.as.HasG.impl.G [concrete]
 // CHECK:STDOUT:   %D.as.HasG.impl.G: %D.as.HasG.impl.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %HasG.facet.9c8: %HasG.type = facet_value %D, (%HasG.impl_witness.b2b) [concrete]
+// CHECK:STDOUT:   %HasG.facet.e44: %HasG.type = facet_value %D, (%HasG.impl_witness.7d5) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -429,10 +429,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageA.import_ref.8f2: <witness> = import_ref PackageA//default, loc8_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageA.import_ref.2c4 = import_ref PackageA//default, inst43 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.HasF: type = import_ref PackageA//default, HasF, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageA.import_ref.28c = import_ref PackageA//default, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.9ec = import_ref PackageA//default, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.c63 = import_ref PackageA//default, loc5_21, unloaded
 // CHECK:STDOUT:   %PackageA.F: %HasF.F.type = import_ref PackageA//default, F, loaded [concrete = constants.%HasF.F]
-// CHECK:STDOUT:   %PackageA.import_ref.e73: %HasF.type = import_ref PackageA//default, inst19 [no loc], loaded [symbolic = constants.%Self.cf3]
+// CHECK:STDOUT:   %PackageA.import_ref.d3b: %HasF.type = import_ref PackageA//default, inst19 [no loc], loaded [symbolic = constants.%Self.b5a]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -452,7 +452,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:     %HasG.ref: type = name_ref HasG, file.%HasG.decl [concrete = constants.%HasG.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasG.impl_witness_table.loc13 = impl_witness_table (@C.as.HasG.impl.%C.as.HasG.impl.G.decl), @C.as.HasG.impl [concrete]
-// CHECK:STDOUT:   %HasG.impl_witness.loc13: <witness> = impl_witness %HasG.impl_witness_table.loc13 [concrete = constants.%HasG.impl_witness.69b]
+// CHECK:STDOUT:   %HasG.impl_witness.loc13: <witness> = impl_witness %HasG.impl_witness_table.loc13 [concrete = constants.%HasG.impl_witness.814]
 // CHECK:STDOUT:   impl_decl @D.as.HasF.impl [concrete] {} {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %PackageA.ref: <namespace> = name_ref PackageA, imports.%PackageA [concrete = imports.%PackageA]
@@ -465,22 +465,22 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:     %HasG.ref: type = name_ref HasG, file.%HasG.decl [concrete = constants.%HasG.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %HasG.impl_witness_table.loc23 = impl_witness_table (@D.as.HasG.impl.%D.as.HasG.impl.G.decl), @D.as.HasG.impl [concrete]
-// CHECK:STDOUT:   %HasG.impl_witness.loc23: <witness> = impl_witness %HasG.impl_witness_table.loc23 [concrete = constants.%HasG.impl_witness.b2b]
+// CHECK:STDOUT:   %HasG.impl_witness.loc23: <witness> = impl_witness %HasG.impl_witness_table.loc23 [concrete = constants.%HasG.impl_witness.7d5]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasG {
-// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.d42]
+// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f26]
 // CHECK:STDOUT:   %HasG.G.decl: %HasG.G.type = fn_decl @HasG.G [concrete = constants.%HasG.G] {
-// CHECK:STDOUT:     %self.patt: @HasG.G.%pattern_type (%pattern_type.293) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @HasG.G.%pattern_type (%pattern_type.293) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @HasG.G.%pattern_type (%pattern_type.16c) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @HasG.G.%pattern_type (%pattern_type.16c) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @HasG.G.%Self.as_type.loc7_14.1 (%Self.as_type.133) = value_param call_param0
-// CHECK:STDOUT:     %.loc7_14.1: type = splice_block %.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.133)] {
-// CHECK:STDOUT:       %Self.ref: %HasG.type = name_ref Self, @HasG.%Self [symbolic = %Self (constants.%Self.d42)]
-// CHECK:STDOUT:       %Self.as_type.loc7_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.133)]
-// CHECK:STDOUT:       %.loc7_14.2: type = converted %Self.ref, %Self.as_type.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.133)]
+// CHECK:STDOUT:     %self.param: @HasG.G.%Self.as_type.loc7_14.1 (%Self.as_type.3c4) = value_param call_param0
+// CHECK:STDOUT:     %.loc7_14.1: type = splice_block %.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.3c4)] {
+// CHECK:STDOUT:       %Self.ref: %HasG.type = name_ref Self, @HasG.%Self [symbolic = %Self (constants.%Self.f26)]
+// CHECK:STDOUT:       %Self.as_type.loc7_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.3c4)]
+// CHECK:STDOUT:       %.loc7_14.2: type = converted %Self.ref, %Self.as_type.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.3c4)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @HasG.G.%Self.as_type.loc7_14.1 (%Self.as_type.133) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @HasG.G.%Self.as_type.loc7_14.1 (%Self.as_type.3c4) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %HasG.assoc_type = assoc_entity element0, %HasG.G.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -492,7 +492,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.28c
+// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.9ec
 // CHECK:STDOUT:   .F = imports.%PackageA.import_ref.c63
 // CHECK:STDOUT:   witness = (imports.%PackageA.F)
 // CHECK:STDOUT: }
@@ -578,11 +578,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @HasG.G(@HasG.%Self: %HasG.type) {
-// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.d42)]
-// CHECK:STDOUT:   %Self.as_type.loc7_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.133)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc7_14.1 [symbolic = %pattern_type (constants.%pattern_type.293)]
+// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f26)]
+// CHECK:STDOUT:   %Self.as_type.loc7_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.3c4)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc7_14.1 [symbolic = %pattern_type (constants.%pattern_type.16c)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @HasG.G.%Self.as_type.loc7_14.1 (%Self.as_type.133));
+// CHECK:STDOUT:   fn(%self.param: @HasG.G.%Self.as_type.loc7_14.1 (%Self.as_type.3c4));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @D.as.Destroy.impl.Op(%self.param: %ptr.19c) = "no_op";
@@ -592,10 +592,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasF.F(imports.%PackageA.import_ref.e73: %HasF.type) [from "package_a.carbon"] {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf3)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.7cf)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.dc3)]
+// CHECK:STDOUT: generic fn @HasF.F(imports.%PackageA.import_ref.d3b: %HasF.type) [from "package_a.carbon"] {
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.b5a)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.f8a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.d21)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -610,22 +610,22 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasG.G(constants.%Self.d42) {
-// CHECK:STDOUT:   %Self => constants.%Self.d42
-// CHECK:STDOUT:   %Self.as_type.loc7_14.1 => constants.%Self.as_type.133
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.293
+// CHECK:STDOUT: specific @HasG.G(constants.%Self.f26) {
+// CHECK:STDOUT:   %Self => constants.%Self.f26
+// CHECK:STDOUT:   %Self.as_type.loc7_14.1 => constants.%Self.as_type.3c4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.16c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasG.G(constants.%HasG.facet.704) {
-// CHECK:STDOUT:   %Self => constants.%HasG.facet.704
+// CHECK:STDOUT: specific @HasG.G(constants.%HasG.facet.103) {
+// CHECK:STDOUT:   %Self => constants.%HasG.facet.103
 // CHECK:STDOUT:   %Self.as_type.loc7_14.1 => constants.%C
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8e5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.cf3) {
-// CHECK:STDOUT:   %Self => constants.%Self.cf3
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.7cf
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.dc3
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.b5a) {
+// CHECK:STDOUT:   %Self => constants.%Self.b5a
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.f8a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d21
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet) {
@@ -634,8 +634,8 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.510
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasG.G(constants.%HasG.facet.9c8) {
-// CHECK:STDOUT:   %Self => constants.%HasG.facet.9c8
+// CHECK:STDOUT: specific @HasG.G(constants.%HasG.facet.e44) {
+// CHECK:STDOUT:   %Self => constants.%HasG.facet.e44
 // CHECK:STDOUT:   %Self.as_type.loc7_14.1 => constants.%D
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.510
 // CHECK:STDOUT: }
@@ -651,17 +651,17 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TestCF: %TestCF.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.cf3: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b5a: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF [concrete]
 // CHECK:STDOUT:   %assoc0: %HasF.assoc_type = assoc_entity element0, imports.%PackageA.import_ref.ab2 [concrete]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.cf3 [symbolic]
-// CHECK:STDOUT:   %pattern_type.dc3: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.b5a [symbolic]
+// CHECK:STDOUT:   %pattern_type.d21: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness imports.%HasF.impl_witness_table [concrete]
 // CHECK:STDOUT:   %HasF.facet: %HasF.type = facet_value %C, (%HasF.impl_witness) [concrete]
-// CHECK:STDOUT:   %.d3f: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
+// CHECK:STDOUT:   %.1c0: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
 // CHECK:STDOUT:   %C.as.HasF.impl.F.type: type = fn_type @C.as.HasF.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.HasF.impl.F: %C.as.HasF.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -680,19 +680,19 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageA.import_ref.8f2: <witness> = import_ref PackageA//default, loc8_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageA.import_ref.2c4 = import_ref PackageA//default, inst43 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.HasF: type = import_ref PackageA//default, HasF, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageA.import_ref.28c = import_ref PackageA//default, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.9ec = import_ref PackageA//default, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.b36: %HasF.assoc_type = import_ref PackageA//default, loc5_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %PackageA.F = import_ref PackageA//default, F, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.ab2: %HasF.F.type = import_ref PackageA//default, loc5_21, loaded [concrete = constants.%HasF.F]
-// CHECK:STDOUT:   %PackageA.import_ref.e73: %HasF.type = import_ref PackageA//default, inst19 [no loc], loaded [symbolic = constants.%Self.cf3]
-// CHECK:STDOUT:   %PackageA.import_ref.34c = import_ref PackageA//default, loc8_9, unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.d3b: %HasF.type = import_ref PackageA//default, inst19 [no loc], loaded [symbolic = constants.%Self.b5a]
+// CHECK:STDOUT:   %PackageA.import_ref.541 = import_ref PackageA//default, loc8_9, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.0ed: type = import_ref PackageA//default, loc8_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %PackageA.import_ref.cb9: type = import_ref PackageA//default, inst46 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageA.import_ref.c12: <witness> = import_ref PackageA//default, loc11_16, loaded [concrete = constants.%HasF.impl_witness]
+// CHECK:STDOUT:   %PackageA.import_ref.063: type = import_ref PackageA//default, inst46 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageA.import_ref.582: <witness> = import_ref PackageA//default, loc11_16, loaded [concrete = constants.%HasF.impl_witness]
 // CHECK:STDOUT:   %PackageA.import_ref.29a: type = import_ref PackageA//default, loc11_6, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %PackageA.import_ref.e8c: type = import_ref PackageA//default, loc11_11, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageA.import_ref.148: %C.as.HasF.impl.F.type = import_ref PackageA//default, loc12_22, loaded [concrete = constants.%C.as.HasF.impl.F]
-// CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (%PackageA.import_ref.148), @C.as.HasF.impl [concrete]
+// CHECK:STDOUT:   %PackageA.import_ref.8c9: %C.as.HasF.impl.F.type = import_ref PackageA//default, loc12_22, loaded [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (%PackageA.import_ref.8c9), @C.as.HasF.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -718,19 +718,19 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.28c
+// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.9ec
 // CHECK:STDOUT:   .F = imports.%PackageA.import_ref.b36
 // CHECK:STDOUT:   witness = (imports.%PackageA.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%PackageA.import_ref.0ed as imports.%PackageA.import_ref.cb9 [from "package_a.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%PackageA.import_ref.0ed as imports.%PackageA.import_ref.063 [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.34c
+// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.HasF.impl: imports.%PackageA.import_ref.29a as imports.%PackageA.import_ref.e8c [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.c12
+// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.582
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C [from "package_a.carbon"] {
@@ -746,26 +746,26 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageA.ref.loc7: <namespace> = name_ref PackageA, imports.%PackageA [concrete = imports.%PackageA]
 // CHECK:STDOUT:   %HasF.ref: type = name_ref HasF, imports.%PackageA.HasF [concrete = constants.%HasF.type]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type = name_ref F, imports.%PackageA.import_ref.b36 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.d3f = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.1c0 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call: init %empty_tuple.type = call %bound_method(%c.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasF.F(imports.%PackageA.import_ref.e73: %HasF.type) [from "package_a.carbon"] {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf3)]
+// CHECK:STDOUT: generic fn @HasF.F(imports.%PackageA.import_ref.d3b: %HasF.type) [from "package_a.carbon"] {
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.b5a)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.dc3)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.d21)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.HasF.impl.F [from "package_a.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.cf3) {
-// CHECK:STDOUT:   %Self => constants.%Self.cf3
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.b5a) {
+// CHECK:STDOUT:   %Self => constants.%Self.b5a
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.dc3
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d21
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- use_df.carbon
@@ -779,19 +779,19 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TestDF: %TestDF.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.cf3: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b5a: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF [concrete]
 // CHECK:STDOUT:   %assoc0: %HasF.assoc_type = assoc_entity element0, imports.%PackageA.import_ref.ab2 [concrete]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.cf3 [symbolic]
-// CHECK:STDOUT:   %pattern_type.dc3: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.b5a [symbolic]
+// CHECK:STDOUT:   %pattern_type.d21: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [concrete]
 // CHECK:STDOUT:   %HasF.impl_witness: <witness> = impl_witness imports.%HasF.impl_witness_table [concrete]
 // CHECK:STDOUT:   %HasF.facet: %HasF.type = facet_value %D, (%HasF.impl_witness) [concrete]
-// CHECK:STDOUT:   %.bc0: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
+// CHECK:STDOUT:   %.88b: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
 // CHECK:STDOUT:   %D.as.HasF.impl.F.type: type = fn_type @D.as.HasF.impl.F [concrete]
 // CHECK:STDOUT:   %D.as.HasF.impl.F: %D.as.HasF.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -813,36 +813,36 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageB.import_ref.8f2: <witness> = import_ref PackageB//default, loc10_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageB.import_ref.cab = import_ref PackageB//default, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.HasF: type = import_ref PackageA//default, HasF, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageA.import_ref.28c = import_ref PackageA//default, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.9ec = import_ref PackageA//default, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.b36: %HasF.assoc_type = import_ref PackageA//default, loc5_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %PackageA.F = import_ref PackageA//default, F, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.ab2: %HasF.F.type = import_ref PackageA//default, loc5_21, loaded [concrete = constants.%HasF.F]
-// CHECK:STDOUT:   %PackageA.import_ref.e73: %HasF.type = import_ref PackageA//default, inst19 [no loc], loaded [symbolic = constants.%Self.cf3]
-// CHECK:STDOUT:   %PackageA.import_ref.34c = import_ref PackageA//default, loc8_9, unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.d3b: %HasF.type = import_ref PackageA//default, inst19 [no loc], loaded [symbolic = constants.%Self.b5a]
+// CHECK:STDOUT:   %PackageA.import_ref.541 = import_ref PackageA//default, loc8_9, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.8f2: <witness> = import_ref PackageA//default, loc8_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageA.import_ref.2c4 = import_ref PackageA//default, inst43 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.0ed: type = import_ref PackageA//default, loc8_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %PackageA.import_ref.cb9: type = import_ref PackageA//default, inst46 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageA.import_ref.5cd = import_ref PackageA//default, loc11_16, unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.063: type = import_ref PackageA//default, inst46 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageA.import_ref.75c = import_ref PackageA//default, loc11_16, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.29a: type = import_ref PackageA//default, loc11_6, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %PackageA.import_ref.e8c: type = import_ref PackageA//default, loc11_11, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageB.import_ref.0c3 = import_ref PackageB//default, loc10_9, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.cd9 = import_ref PackageB//default, loc10_9, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.130: type = import_ref PackageB//default, loc10_9, loaded [concrete = constants.%D]
-// CHECK:STDOUT:   %PackageB.import_ref.cb9: type = import_ref PackageB//default, inst48 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageB.import_ref.5d8 = import_ref PackageB//default, inst21 [no loc], unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.063: type = import_ref PackageB//default, inst48 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageB.import_ref.2ab = import_ref PackageB//default, inst21 [no loc], unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.910 = import_ref PackageB//default, loc7_21, unloaded
 // CHECK:STDOUT:   %PackageB.G = import_ref PackageB//default, G, unloaded
-// CHECK:STDOUT:   %PackageB.import_ref.ea7 = import_ref PackageB//default, loc13_25, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.39e = import_ref PackageB//default, loc13_25, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.dfb: type = import_ref PackageB//default, loc13_14, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %PackageB.import_ref.cee586.1: type = import_ref PackageB//default, loc13_20, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.ce6: <witness> = import_ref PackageB//default, loc18_25, loaded [concrete = constants.%HasF.impl_witness]
+// CHECK:STDOUT:   %PackageB.import_ref.632: <witness> = import_ref PackageB//default, loc18_25, loaded [concrete = constants.%HasF.impl_witness]
 // CHECK:STDOUT:   %PackageB.import_ref.aa9f8a.1: type = import_ref PackageB//default, loc18_6, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %PackageB.import_ref.831: type = import_ref PackageB//default, loc18_19, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageB.import_ref.569 = import_ref PackageB//default, loc23_16, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.e02 = import_ref PackageB//default, loc23_16, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.aa9f8a.2: type = import_ref PackageB//default, loc23_6, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %PackageB.import_ref.cee586.2: type = import_ref PackageB//default, loc23_11, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.0cd: %D.as.HasF.impl.F.type = import_ref PackageB//default, loc19_22, loaded [concrete = constants.%D.as.HasF.impl.F]
-// CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (%PackageB.import_ref.0cd), @D.as.HasF.impl [concrete]
+// CHECK:STDOUT:   %PackageB.import_ref.d32: %D.as.HasF.impl.F.type = import_ref PackageB//default, loc19_22, loaded [concrete = constants.%D.as.HasF.impl.F]
+// CHECK:STDOUT:   %HasF.impl_witness_table = impl_witness_table (%PackageB.import_ref.d32), @D.as.HasF.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -870,46 +870,46 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.28c
+// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.9ec
 // CHECK:STDOUT:   .F = imports.%PackageA.import_ref.b36
 // CHECK:STDOUT:   witness = (imports.%PackageA.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasG [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.5d8
+// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.2ab
 // CHECK:STDOUT:   .G = imports.%PackageB.import_ref.910
 // CHECK:STDOUT:   witness = (imports.%PackageB.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%PackageA.import_ref.0ed as imports.%PackageA.import_ref.cb9 [from "package_a.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%PackageA.import_ref.0ed as imports.%PackageA.import_ref.063 [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.34c
+// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.HasF.impl: imports.%PackageA.import_ref.29a as imports.%PackageA.import_ref.e8c [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.5cd
+// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.75c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%PackageB.import_ref.130 as imports.%PackageB.import_ref.cb9 [from "package_b.carbon"] {
+// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%PackageB.import_ref.130 as imports.%PackageB.import_ref.063 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.0c3
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.cd9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.HasG.impl: imports.%PackageB.import_ref.dfb as imports.%PackageB.import_ref.cee586.1 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.ea7
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.39e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @D.as.HasF.impl: imports.%PackageB.import_ref.aa9f8a.1 as imports.%PackageB.import_ref.831 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.ce6
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.632
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @D.as.HasG.impl: imports.%PackageB.import_ref.aa9f8a.2 as imports.%PackageB.import_ref.cee586.2 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.569
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.e02
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @D [from "package_b.carbon"] {
@@ -932,26 +932,26 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageA.ref: <namespace> = name_ref PackageA, imports.%PackageA [concrete = imports.%PackageA]
 // CHECK:STDOUT:   %HasF.ref: type = name_ref HasF, imports.%PackageA.HasF [concrete = constants.%HasF.type]
 // CHECK:STDOUT:   %F.ref: %HasF.assoc_type = name_ref F, imports.%PackageA.import_ref.b36 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.bc0 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%D.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.88b = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%D.as.HasF.impl.F]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %d.ref, %impl.elem0
 // CHECK:STDOUT:   %D.as.HasF.impl.F.call: init %empty_tuple.type = call %bound_method(%d.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasF.F(imports.%PackageA.import_ref.e73: %HasF.type) [from "package_a.carbon"] {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf3)]
+// CHECK:STDOUT: generic fn @HasF.F(imports.%PackageA.import_ref.d3b: %HasF.type) [from "package_a.carbon"] {
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.b5a)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.dc3)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.d21)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @D.as.HasF.impl.F [from "package_b.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.cf3) {
-// CHECK:STDOUT:   %Self => constants.%Self.cf3
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.b5a) {
+// CHECK:STDOUT:   %Self => constants.%Self.b5a
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.dc3
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d21
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- use_cg.carbon
@@ -965,19 +965,19 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TestCG: %TestCG.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [concrete]
-// CHECK:STDOUT:   %Self.fcb: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.1b9: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasG.assoc_type: type = assoc_entity_type @HasG [concrete]
 // CHECK:STDOUT:   %assoc0: %HasG.assoc_type = assoc_entity element0, imports.%PackageB.import_ref.70a [concrete]
 // CHECK:STDOUT:   %HasG.G.type: type = fn_type @HasG.G [concrete]
 // CHECK:STDOUT:   %HasG.G: %HasG.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.fcb [symbolic]
-// CHECK:STDOUT:   %pattern_type.76a: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.1b9 [symbolic]
+// CHECK:STDOUT:   %pattern_type.4cd: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %HasG.impl_witness: <witness> = impl_witness imports.%HasG.impl_witness_table [concrete]
 // CHECK:STDOUT:   %HasG.facet: %HasG.type = facet_value %C, (%HasG.impl_witness) [concrete]
-// CHECK:STDOUT:   %.a26: type = fn_type_with_self_type %HasG.G.type, %HasG.facet [concrete]
+// CHECK:STDOUT:   %.788: type = fn_type_with_self_type %HasG.G.type, %HasG.facet [concrete]
 // CHECK:STDOUT:   %C.as.HasG.impl.G.type: type = fn_type @C.as.HasG.impl.G [concrete]
 // CHECK:STDOUT:   %C.as.HasG.impl.G: %C.as.HasG.impl.G.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -999,36 +999,36 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageA.import_ref.8f2: <witness> = import_ref PackageA//default, loc8_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageA.import_ref.2c4 = import_ref PackageA//default, inst43 [no loc], unloaded
 // CHECK:STDOUT:   %PackageB.HasG: type = import_ref PackageB//default, HasG, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.5d8 = import_ref PackageB//default, inst21 [no loc], unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.2ab = import_ref PackageB//default, inst21 [no loc], unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.6c2: %HasG.assoc_type = import_ref PackageB//default, loc7_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %PackageB.G = import_ref PackageB//default, G, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.70a: %HasG.G.type = import_ref PackageB//default, loc7_21, loaded [concrete = constants.%HasG.G]
-// CHECK:STDOUT:   %PackageB.import_ref.ef5: %HasG.type = import_ref PackageB//default, inst21 [no loc], loaded [symbolic = constants.%Self.fcb]
-// CHECK:STDOUT:   %PackageA.import_ref.34c = import_ref PackageA//default, loc8_9, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.6a0: %HasG.type = import_ref PackageB//default, inst21 [no loc], loaded [symbolic = constants.%Self.1b9]
+// CHECK:STDOUT:   %PackageA.import_ref.541 = import_ref PackageA//default, loc8_9, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.0ed: type = import_ref PackageA//default, loc8_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %PackageA.import_ref.cb9: type = import_ref PackageA//default, inst46 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageA.import_ref.28c = import_ref PackageA//default, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.063: type = import_ref PackageA//default, inst46 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageA.import_ref.9ec = import_ref PackageA//default, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.c63 = import_ref PackageA//default, loc5_21, unloaded
 // CHECK:STDOUT:   %PackageA.F = import_ref PackageA//default, F, unloaded
-// CHECK:STDOUT:   %PackageA.import_ref.5cd = import_ref PackageA//default, loc11_16, unloaded
+// CHECK:STDOUT:   %PackageA.import_ref.75c = import_ref PackageA//default, loc11_16, unloaded
 // CHECK:STDOUT:   %PackageA.import_ref.29a: type = import_ref PackageA//default, loc11_6, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %PackageA.import_ref.e8c: type = import_ref PackageA//default, loc11_11, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageB.import_ref.0c3 = import_ref PackageB//default, loc10_9, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.cd9 = import_ref PackageB//default, loc10_9, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.8f2: <witness> = import_ref PackageB//default, loc10_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageB.import_ref.cab = import_ref PackageB//default, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.130: type = import_ref PackageB//default, loc10_9, loaded [concrete = constants.%D]
-// CHECK:STDOUT:   %PackageB.import_ref.cb9: type = import_ref PackageB//default, inst48 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageB.import_ref.1f6: <witness> = import_ref PackageB//default, loc13_25, loaded [concrete = constants.%HasG.impl_witness]
+// CHECK:STDOUT:   %PackageB.import_ref.063: type = import_ref PackageB//default, inst48 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageB.import_ref.d49: <witness> = import_ref PackageB//default, loc13_25, loaded [concrete = constants.%HasG.impl_witness]
 // CHECK:STDOUT:   %PackageB.import_ref.dfb: type = import_ref PackageB//default, loc13_14, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %PackageB.import_ref.cee586.1: type = import_ref PackageB//default, loc13_20, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.5ba = import_ref PackageB//default, loc18_25, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.4e7 = import_ref PackageB//default, loc18_25, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.aa9f8a.1: type = import_ref PackageB//default, loc18_6, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %PackageB.import_ref.831: type = import_ref PackageB//default, loc18_19, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageB.import_ref.569 = import_ref PackageB//default, loc23_16, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.e02 = import_ref PackageB//default, loc23_16, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.aa9f8a.2: type = import_ref PackageB//default, loc23_6, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %PackageB.import_ref.cee586.2: type = import_ref PackageB//default, loc23_11, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.9ec: %C.as.HasG.impl.G.type = import_ref PackageB//default, loc14_22, loaded [concrete = constants.%C.as.HasG.impl.G]
-// CHECK:STDOUT:   %HasG.impl_witness_table = impl_witness_table (%PackageB.import_ref.9ec), @C.as.HasG.impl [concrete]
+// CHECK:STDOUT:   %PackageB.import_ref.78c: %C.as.HasG.impl.G.type = import_ref PackageB//default, loc14_22, loaded [concrete = constants.%C.as.HasG.impl.G]
+// CHECK:STDOUT:   %HasG.impl_witness_table = impl_witness_table (%PackageB.import_ref.78c), @C.as.HasG.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1056,46 +1056,46 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasG [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.5d8
+// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.2ab
 // CHECK:STDOUT:   .G = imports.%PackageB.import_ref.6c2
 // CHECK:STDOUT:   witness = (imports.%PackageB.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.28c
+// CHECK:STDOUT:   .Self = imports.%PackageA.import_ref.9ec
 // CHECK:STDOUT:   .F = imports.%PackageA.import_ref.c63
 // CHECK:STDOUT:   witness = (imports.%PackageA.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%PackageA.import_ref.0ed as imports.%PackageA.import_ref.cb9 [from "package_a.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%PackageA.import_ref.0ed as imports.%PackageA.import_ref.063 [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.34c
+// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.541
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.HasF.impl: imports.%PackageA.import_ref.29a as imports.%PackageA.import_ref.e8c [from "package_a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.5cd
+// CHECK:STDOUT:   witness = imports.%PackageA.import_ref.75c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%PackageB.import_ref.130 as imports.%PackageB.import_ref.cb9 [from "package_b.carbon"] {
+// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%PackageB.import_ref.130 as imports.%PackageB.import_ref.063 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.0c3
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.cd9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.HasG.impl: imports.%PackageB.import_ref.dfb as imports.%PackageB.import_ref.cee586.1 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.1f6
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.d49
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @D.as.HasF.impl: imports.%PackageB.import_ref.aa9f8a.1 as imports.%PackageB.import_ref.831 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.5ba
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.4e7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @D.as.HasG.impl: imports.%PackageB.import_ref.aa9f8a.2 as imports.%PackageB.import_ref.cee586.2 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.569
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.e02
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C [from "package_a.carbon"] {
@@ -1118,26 +1118,26 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageB.ref: <namespace> = name_ref PackageB, imports.%PackageB [concrete = imports.%PackageB]
 // CHECK:STDOUT:   %HasG.ref: type = name_ref HasG, imports.%PackageB.HasG [concrete = constants.%HasG.type]
 // CHECK:STDOUT:   %G.ref: %HasG.assoc_type = name_ref G, imports.%PackageB.import_ref.6c2 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.a26 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%C.as.HasG.impl.G]
+// CHECK:STDOUT:   %impl.elem0: %.788 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%C.as.HasG.impl.G]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.HasG.impl.G.call: init %empty_tuple.type = call %bound_method(%c.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasG.G(imports.%PackageB.import_ref.ef5: %HasG.type) [from "package_b.carbon"] {
-// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.fcb)]
+// CHECK:STDOUT: generic fn @HasG.G(imports.%PackageB.import_ref.6a0: %HasG.type) [from "package_b.carbon"] {
+// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1b9)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.76a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4cd)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.HasG.impl.G [from "package_b.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasG.G(constants.%Self.fcb) {
-// CHECK:STDOUT:   %Self => constants.%Self.fcb
+// CHECK:STDOUT: specific @HasG.G(constants.%Self.1b9) {
+// CHECK:STDOUT:   %Self => constants.%Self.1b9
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.76a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4cd
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- use_dg.carbon
@@ -1151,19 +1151,19 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %TestDG: %TestDG.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [concrete]
-// CHECK:STDOUT:   %Self.fcb: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.1b9: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasG.assoc_type: type = assoc_entity_type @HasG [concrete]
 // CHECK:STDOUT:   %assoc0: %HasG.assoc_type = assoc_entity element0, imports.%PackageB.import_ref.70a [concrete]
 // CHECK:STDOUT:   %HasG.G.type: type = fn_type @HasG.G [concrete]
 // CHECK:STDOUT:   %HasG.G: %HasG.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.fcb [symbolic]
-// CHECK:STDOUT:   %pattern_type.76a: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.1b9 [symbolic]
+// CHECK:STDOUT:   %pattern_type.4cd: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
 // CHECK:STDOUT:   %HasG.impl_witness: <witness> = impl_witness imports.%HasG.impl_witness_table [concrete]
 // CHECK:STDOUT:   %HasG.facet: %HasG.type = facet_value %D, (%HasG.impl_witness) [concrete]
-// CHECK:STDOUT:   %.132: type = fn_type_with_self_type %HasG.G.type, %HasG.facet [concrete]
+// CHECK:STDOUT:   %.064: type = fn_type_with_self_type %HasG.G.type, %HasG.facet [concrete]
 // CHECK:STDOUT:   %D.as.HasG.impl.G.type: type = fn_type @D.as.HasG.impl.G [concrete]
 // CHECK:STDOUT:   %D.as.HasG.impl.G: %D.as.HasG.impl.G.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -1182,30 +1182,30 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageB.import_ref.8f2: <witness> = import_ref PackageB//default, loc10_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageB.import_ref.cab = import_ref PackageB//default, inst45 [no loc], unloaded
 // CHECK:STDOUT:   %PackageB.HasG: type = import_ref PackageB//default, HasG, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.5d8 = import_ref PackageB//default, inst21 [no loc], unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.2ab = import_ref PackageB//default, inst21 [no loc], unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.6c2: %HasG.assoc_type = import_ref PackageB//default, loc7_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %PackageB.G = import_ref PackageB//default, G, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.70a: %HasG.G.type = import_ref PackageB//default, loc7_21, loaded [concrete = constants.%HasG.G]
-// CHECK:STDOUT:   %PackageB.import_ref.ef5: %HasG.type = import_ref PackageB//default, inst21 [no loc], loaded [symbolic = constants.%Self.fcb]
-// CHECK:STDOUT:   %PackageB.import_ref.0c3 = import_ref PackageB//default, loc10_9, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.6a0: %HasG.type = import_ref PackageB//default, inst21 [no loc], loaded [symbolic = constants.%Self.1b9]
+// CHECK:STDOUT:   %PackageB.import_ref.cd9 = import_ref PackageB//default, loc10_9, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.130: type = import_ref PackageB//default, loc10_9, loaded [concrete = constants.%D]
-// CHECK:STDOUT:   %PackageB.import_ref.cb9: type = import_ref PackageB//default, inst48 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageB.import_ref.ea7 = import_ref PackageB//default, loc13_25, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.063: type = import_ref PackageB//default, inst48 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageB.import_ref.39e = import_ref PackageB//default, loc13_25, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.8db: <witness> = import_ref PackageB//default, inst92 [indirect], loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %PackageB.import_ref.6a9 = import_ref PackageB//default, inst93 [indirect], unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.dfb: type = import_ref PackageB//default, loc13_14, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %PackageB.import_ref.cee586.1: type = import_ref PackageB//default, loc13_20, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.96f = import_ref PackageB//default, inst118 [indirect], unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.05d = import_ref PackageB//default, inst118 [indirect], unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.a0b = import_ref PackageB//default, inst119 [indirect], unloaded
 // CHECK:STDOUT:   %PackageB.F = import_ref PackageB//default, F, unloaded
-// CHECK:STDOUT:   %PackageB.import_ref.5ba = import_ref PackageB//default, loc18_25, unloaded
+// CHECK:STDOUT:   %PackageB.import_ref.4e7 = import_ref PackageB//default, loc18_25, unloaded
 // CHECK:STDOUT:   %PackageB.import_ref.aa9f8a.1: type = import_ref PackageB//default, loc18_6, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %PackageB.import_ref.831: type = import_ref PackageB//default, loc18_19, loaded [concrete = constants.%HasF.type]
-// CHECK:STDOUT:   %PackageB.import_ref.bb9: <witness> = import_ref PackageB//default, loc23_16, loaded [concrete = constants.%HasG.impl_witness]
+// CHECK:STDOUT:   %PackageB.import_ref.993: <witness> = import_ref PackageB//default, loc23_16, loaded [concrete = constants.%HasG.impl_witness]
 // CHECK:STDOUT:   %PackageB.import_ref.aa9f8a.2: type = import_ref PackageB//default, loc23_6, loaded [concrete = constants.%D]
 // CHECK:STDOUT:   %PackageB.import_ref.cee586.2: type = import_ref PackageB//default, loc23_11, loaded [concrete = constants.%HasG.type]
-// CHECK:STDOUT:   %PackageB.import_ref.b0a: %D.as.HasG.impl.G.type = import_ref PackageB//default, loc24_22, loaded [concrete = constants.%D.as.HasG.impl.G]
-// CHECK:STDOUT:   %HasG.impl_witness_table = impl_witness_table (%PackageB.import_ref.b0a), @D.as.HasG.impl [concrete]
+// CHECK:STDOUT:   %PackageB.import_ref.bd7: %D.as.HasG.impl.G.type = import_ref PackageB//default, loc24_22, loaded [concrete = constants.%D.as.HasG.impl.G]
+// CHECK:STDOUT:   %HasG.impl_witness_table = impl_witness_table (%PackageB.import_ref.bd7), @D.as.HasG.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1231,36 +1231,36 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasG [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.5d8
+// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.2ab
 // CHECK:STDOUT:   .G = imports.%PackageB.import_ref.6c2
 // CHECK:STDOUT:   witness = (imports.%PackageB.G)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.96f
+// CHECK:STDOUT:   .Self = imports.%PackageB.import_ref.05d
 // CHECK:STDOUT:   .F = imports.%PackageB.import_ref.a0b
 // CHECK:STDOUT:   witness = (imports.%PackageB.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%PackageB.import_ref.130 as imports.%PackageB.import_ref.cb9 [from "package_b.carbon"] {
+// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%PackageB.import_ref.130 as imports.%PackageB.import_ref.063 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.0c3
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.cd9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.HasG.impl: imports.%PackageB.import_ref.dfb as imports.%PackageB.import_ref.cee586.1 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.ea7
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.39e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @D.as.HasF.impl: imports.%PackageB.import_ref.aa9f8a.1 as imports.%PackageB.import_ref.831 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.5ba
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.4e7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @D.as.HasG.impl: imports.%PackageB.import_ref.aa9f8a.2 as imports.%PackageB.import_ref.cee586.2 [from "package_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.bb9
+// CHECK:STDOUT:   witness = imports.%PackageB.import_ref.993
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @D [from "package_b.carbon"] {
@@ -1283,26 +1283,26 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageB.ref.loc7: <namespace> = name_ref PackageB, imports.%PackageB [concrete = imports.%PackageB]
 // CHECK:STDOUT:   %HasG.ref: type = name_ref HasG, imports.%PackageB.HasG [concrete = constants.%HasG.type]
 // CHECK:STDOUT:   %G.ref: %HasG.assoc_type = name_ref G, imports.%PackageB.import_ref.6c2 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.132 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%D.as.HasG.impl.G]
+// CHECK:STDOUT:   %impl.elem0: %.064 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%D.as.HasG.impl.G]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %d.ref, %impl.elem0
 // CHECK:STDOUT:   %D.as.HasG.impl.G.call: init %empty_tuple.type = call %bound_method(%d.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @HasG.G(imports.%PackageB.import_ref.ef5: %HasG.type) [from "package_b.carbon"] {
-// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.fcb)]
+// CHECK:STDOUT: generic fn @HasG.G(imports.%PackageB.import_ref.6a0: %HasG.type) [from "package_b.carbon"] {
+// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1b9)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.76a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4cd)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @D.as.HasG.impl.G [from "package_b.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasG.G(constants.%Self.fcb) {
-// CHECK:STDOUT:   %Self => constants.%Self.fcb
+// CHECK:STDOUT: specific @HasG.G(constants.%Self.1b9) {
+// CHECK:STDOUT:   %Self => constants.%Self.1b9
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.76a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4cd
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- associated_interface.carbon
@@ -1311,7 +1311,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.a40: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.09d: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Z.H.type: type = fn_type @Z.H [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Z.H: %Z.H.type = struct_value () [concrete]
@@ -1350,8 +1350,8 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: interface @Z {
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Z.H.decl: %Z.H.type = fn_decl @Z.H [concrete = constants.%Z.H] {
-// CHECK:STDOUT:     %self.patt: @Z.H.%pattern_type (%pattern_type.a40) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Z.H.%pattern_type (%pattern_type.a40) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Z.H.%pattern_type (%pattern_type.09d) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Z.H.%pattern_type (%pattern_type.09d) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @Z.H.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
@@ -1387,7 +1387,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: generic fn @Z.H(@Z.%Self: %Z.type) {
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.a40)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.09d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @Z.H.%Self.as_type.loc5_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -1400,7 +1400,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: specific @Z.H(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a40
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.09d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z.H(constants.%Z.facet) {
@@ -1422,10 +1422,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Z.H.type: type = fn_type @Z.H [concrete]
 // CHECK:STDOUT:   %Z.H: %Z.H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.75f: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.281: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness imports.%Z.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Z.facet: %Z.type = facet_value %empty_tuple.type, (%Z.impl_witness) [concrete]
-// CHECK:STDOUT:   %.7f5: type = fn_type_with_self_type %Z.H.type, %Z.facet [concrete]
+// CHECK:STDOUT:   %.1c6: type = fn_type_with_self_type %Z.H.type, %Z.facet [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.Z.impl.H.type: type = fn_type @empty_tuple.type.as.Z.impl.H [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.Z.impl.H: %empty_tuple.type.as.Z.impl.H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
@@ -1441,16 +1441,16 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:     import PackageAssociatedInterface//default
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %PackageAssociatedInterface.Z: type = import_ref PackageAssociatedInterface//default, Z, loaded [concrete = constants.%Z.type]
-// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.f88 = import_ref PackageAssociatedInterface//default, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.9e6 = import_ref PackageAssociatedInterface//default, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.609: %Z.assoc_type = import_ref PackageAssociatedInterface//default, loc5_21, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %PackageAssociatedInterface.H = import_ref PackageAssociatedInterface//default, H, unloaded
 // CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.250: %Z.H.type = import_ref PackageAssociatedInterface//default, loc5_21, loaded [concrete = constants.%Z.H]
-// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.d26: %Z.type = import_ref PackageAssociatedInterface//default, inst19 [no loc], loaded [symbolic = constants.%Self]
-// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.d8c: <witness> = import_ref PackageAssociatedInterface//default, loc8_14, loaded [concrete = constants.%Z.impl_witness]
+// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.c8f: %Z.type = import_ref PackageAssociatedInterface//default, inst19 [no loc], loaded [symbolic = constants.%Self]
+// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.867: <witness> = import_ref PackageAssociatedInterface//default, loc8_14, loaded [concrete = constants.%Z.impl_witness]
 // CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.e5c: type = import_ref PackageAssociatedInterface//default, loc8_7, loaded [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.df1: type = import_ref PackageAssociatedInterface//default, loc8_12, loaded [concrete = constants.%Z.type]
-// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.6d7: %empty_tuple.type.as.Z.impl.H.type = import_ref PackageAssociatedInterface//default, loc9_22, loaded [concrete = constants.%empty_tuple.type.as.Z.impl.H]
-// CHECK:STDOUT:   %Z.impl_witness_table = impl_witness_table (%PackageAssociatedInterface.import_ref.6d7), @empty_tuple.type.as.Z.impl [concrete]
+// CHECK:STDOUT:   %PackageAssociatedInterface.import_ref.c92: %empty_tuple.type.as.Z.impl.H.type = import_ref PackageAssociatedInterface//default, loc9_22, loaded [concrete = constants.%empty_tuple.type.as.Z.impl.H]
+// CHECK:STDOUT:   %Z.impl_witness_table = impl_witness_table (%PackageAssociatedInterface.import_ref.c92), @empty_tuple.type.as.Z.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1466,14 +1466,14 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z [from "associated_interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageAssociatedInterface.import_ref.f88
+// CHECK:STDOUT:   .Self = imports.%PackageAssociatedInterface.import_ref.9e6
 // CHECK:STDOUT:   .H = imports.%PackageAssociatedInterface.import_ref.609
 // CHECK:STDOUT:   witness = (imports.%PackageAssociatedInterface.H)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.Z.impl: imports.%PackageAssociatedInterface.import_ref.e5c as imports.%PackageAssociatedInterface.import_ref.df1 [from "associated_interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageAssociatedInterface.import_ref.d8c
+// CHECK:STDOUT:   witness = imports.%PackageAssociatedInterface.import_ref.867
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @J() {
@@ -1482,7 +1482,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageAssociatedInterface.ref: <namespace> = name_ref PackageAssociatedInterface, imports.%PackageAssociatedInterface [concrete = imports.%PackageAssociatedInterface]
 // CHECK:STDOUT:   %Z.ref: type = name_ref Z, imports.%PackageAssociatedInterface.Z [concrete = constants.%Z.type]
 // CHECK:STDOUT:   %H.ref: %Z.assoc_type = name_ref H, imports.%PackageAssociatedInterface.import_ref.609 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.7f5 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.Z.impl.H]
+// CHECK:STDOUT:   %impl.elem0: %.1c6 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.Z.impl.H]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc7_4.1, %impl.elem0
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc7_4.2: %empty_tuple.type = converted %.loc7_4.1, %empty_tuple [concrete = constants.%empty_tuple]
@@ -1490,10 +1490,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Z.H(imports.%PackageAssociatedInterface.import_ref.d26: %Z.type) [from "associated_interface.carbon"] {
+// CHECK:STDOUT: generic fn @Z.H(imports.%PackageAssociatedInterface.import_ref.c8f: %Z.type) [from "associated_interface.carbon"] {
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.75f)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.281)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -1503,7 +1503,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: specific @Z.H(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.75f
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.281
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- has_param.carbon
@@ -1528,14 +1528,14 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.b29: %Y.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.744: type = facet_access_type %Self.b29 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f04: type = pattern_type %Self.as_type.744 [symbolic]
+// CHECK:STDOUT:   %Self.33b: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.277: type = facet_access_type %Self.33b [symbolic]
+// CHECK:STDOUT:   %pattern_type.d13: type = pattern_type %Self.as_type.277 [symbolic]
 // CHECK:STDOUT:   %Y.K.type: type = fn_type @Y.K [concrete]
 // CHECK:STDOUT:   %Y.K: %Y.K.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y [concrete]
 // CHECK:STDOUT:   %assoc0: %Y.assoc_type = assoc_entity element0, @Y.%Y.K.decl [concrete]
-// CHECK:STDOUT:   %require_complete.18c: <witness> = require_complete_type %Self.as_type.744 [symbolic]
+// CHECK:STDOUT:   %require_complete.9c4: <witness> = require_complete_type %Self.as_type.277 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1570,18 +1570,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b29]
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.33b]
 // CHECK:STDOUT:   %Y.K.decl: %Y.K.type = fn_decl @Y.K [concrete = constants.%Y.K] {
-// CHECK:STDOUT:     %self.patt: @Y.K.%pattern_type (%pattern_type.f04) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @Y.K.%pattern_type (%pattern_type.f04) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @Y.K.%pattern_type (%pattern_type.d13) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @Y.K.%pattern_type (%pattern_type.d13) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @Y.K.%Self.as_type.loc7_14.1 (%Self.as_type.744) = value_param call_param0
-// CHECK:STDOUT:     %.loc7_14.1: type = splice_block %.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.744)] {
-// CHECK:STDOUT:       %Self.ref: %Y.type = name_ref Self, @Y.%Self [symbolic = %Self (constants.%Self.b29)]
-// CHECK:STDOUT:       %Self.as_type.loc7_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.744)]
-// CHECK:STDOUT:       %.loc7_14.2: type = converted %Self.ref, %Self.as_type.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.744)]
+// CHECK:STDOUT:     %self.param: @Y.K.%Self.as_type.loc7_14.1 (%Self.as_type.277) = value_param call_param0
+// CHECK:STDOUT:     %.loc7_14.1: type = splice_block %.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.277)] {
+// CHECK:STDOUT:       %Self.ref: %Y.type = name_ref Self, @Y.%Self [symbolic = %Self (constants.%Self.33b)]
+// CHECK:STDOUT:       %Self.as_type.loc7_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.277)]
+// CHECK:STDOUT:       %.loc7_14.2: type = converted %Self.ref, %Self.as_type.loc7_14.2 [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.277)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @Y.K.%Self.as_type.loc7_14.1 (%Self.as_type.744) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @Y.K.%Self.as_type.loc7_14.1 (%Self.as_type.277) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %Y.assoc_type = assoc_entity element0, %Y.K.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -1655,14 +1655,14 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Y.K(@Y.%Self: %Y.type) {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.b29)]
-// CHECK:STDOUT:   %Self.as_type.loc7_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.744)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc7_14.1 [symbolic = %pattern_type (constants.%pattern_type.f04)]
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.33b)]
+// CHECK:STDOUT:   %Self.as_type.loc7_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc7_14.1 (constants.%Self.as_type.277)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc7_14.1 [symbolic = %pattern_type (constants.%pattern_type.d13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc7_14.1 [symbolic = %require_complete (constants.%require_complete.18c)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc7_14.1 [symbolic = %require_complete (constants.%require_complete.9c4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Y.K.%Self.as_type.loc7_14.1 (%Self.as_type.744)) {
+// CHECK:STDOUT:   fn(%self.param: @Y.K.%Self.as_type.loc7_14.1 (%Self.as_type.277)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -1689,10 +1689,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.74e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Y.K(constants.%Self.b29) {
-// CHECK:STDOUT:   %Self => constants.%Self.b29
-// CHECK:STDOUT:   %Self.as_type.loc7_14.1 => constants.%Self.as_type.744
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f04
+// CHECK:STDOUT: specific @Y.K(constants.%Self.33b) {
+// CHECK:STDOUT:   %Self => constants.%Self.33b
+// CHECK:STDOUT:   %Self.as_type.loc7_14.1 => constants.%Self.as_type.277
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d13
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- has_generic_interface.carbon
@@ -1704,8 +1704,8 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %GenericInterface.type.c92: type = generic_interface_type @GenericInterface [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %GenericInterface.generic: %GenericInterface.type.c92 = struct_value () [concrete]
-// CHECK:STDOUT:   %GenericInterface.type.3fe: type = facet_type <@GenericInterface, @GenericInterface(%U)> [symbolic]
-// CHECK:STDOUT:   %Self.a1c: %GenericInterface.type.3fe = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %GenericInterface.type.073: type = facet_type <@GenericInterface, @GenericInterface(%U)> [symbolic]
+// CHECK:STDOUT:   %Self.0db: %GenericInterface.type.073 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %AnyParam.type: type = generic_class_type @AnyParam [concrete]
 // CHECK:STDOUT:   %AnyParam.generic: %AnyParam.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
@@ -1718,12 +1718,12 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %pattern_type.438: type = pattern_type %GenericInterface.type.c92 [concrete]
 // CHECK:STDOUT:   %AnyParam.241: type = class_type @AnyParam, @AnyParam(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.f64: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.cf0: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Y.K.type: type = fn_type @Y.K [concrete]
 // CHECK:STDOUT:   %Y.K: %Y.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.61d: type = facet_access_type %Self.f64 [symbolic]
-// CHECK:STDOUT:   %pattern_type.cb4: type = pattern_type %Self.as_type.61d [symbolic]
-// CHECK:STDOUT:   %require_complete.b14: <witness> = require_complete_type %Self.as_type.61d [symbolic]
+// CHECK:STDOUT:   %Self.as_type.f4a: type = facet_access_type %Self.cf0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.89d: type = pattern_type %Self.as_type.f4a [symbolic]
+// CHECK:STDOUT:   %require_complete.d82: <witness> = require_complete_type %Self.as_type.f4a [symbolic]
 // CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness file.%Y.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.004: type = pattern_type %AnyParam.241 [concrete]
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.type: type = fn_type @AnyParam.as.Y.impl.K [concrete]
@@ -1736,18 +1736,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y [concrete]
 // CHECK:STDOUT:   %assoc0.494: %Y.assoc_type = assoc_entity element0, imports.%PackageHasParam.import_ref.ce2 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ee6: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.5e7: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.e78: %AnyParam.as.Destroy.impl.Op.type.5e7 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.00d: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.b3e: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.37f: %AnyParam.as.Destroy.impl.Op.type.b3e = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.4a9: type = ptr_type %AnyParam.560 [symbolic]
 // CHECK:STDOUT:   %pattern_type.84c: type = pattern_type %ptr.4a9 [symbolic]
-// CHECK:STDOUT:   %.0fb: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.e1c: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.191: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.acf: %AnyParam.as.Destroy.impl.Op.type.191 = struct_value () [concrete]
+// CHECK:STDOUT:   %.07b: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.e4f: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.f35: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.994: %AnyParam.as.Destroy.impl.Op.type.f35 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.301: type = ptr_type %AnyParam.241 [concrete]
 // CHECK:STDOUT:   %pattern_type.027: type = pattern_type %ptr.301 [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.acf, @AnyParam.as.Destroy.impl.Op(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.994, @AnyParam.as.Destroy.impl.Op(%GenericInterface.type.c92, %GenericInterface.generic) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1767,18 +1767,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.import_ref.8f2: <witness> = import_ref PackageHasParam//default, loc4_34, loaded [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.601 = import_ref PackageHasParam//default, inst37 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.Y: type = import_ref PackageHasParam//default, Y, loaded [concrete = constants.%Y.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.dc1 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
+// CHECK:STDOUT:   %PackageHasParam.import_ref.614 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.import_ref.f69: %Y.assoc_type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%assoc0.494]
 // CHECK:STDOUT:   %PackageHasParam.K: %Y.K.type = import_ref PackageHasParam//default, K, loaded [concrete = constants.%Y.K]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.292: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.f64]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.460: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.cf0]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.ce2: %Y.K.type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%Y.K]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.60d: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ee6)]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.835: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.00d)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.2: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.2: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.cdc: type = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.cb9: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.aa2: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.5e7) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.e78)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.279 = impl_witness_table (%PackageHasParam.import_ref.aa2), @AnyParam.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.063: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.1a6: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.b3e) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.37f)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.297 = impl_witness_table (%PackageHasParam.import_ref.1a6), @AnyParam.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.3: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.3: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
@@ -1816,11 +1816,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %U.loc6_28.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc6_28.1 (constants.%U)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericInterface.type: type = facet_type <@GenericInterface, @GenericInterface(%U.loc6_28.1)> [symbolic = %GenericInterface.type (constants.%GenericInterface.type.3fe)]
-// CHECK:STDOUT:   %Self.2: @GenericInterface.%GenericInterface.type (%GenericInterface.type.3fe) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a1c)]
+// CHECK:STDOUT:   %GenericInterface.type: type = facet_type <@GenericInterface, @GenericInterface(%U.loc6_28.1)> [symbolic = %GenericInterface.type (constants.%GenericInterface.type.073)]
+// CHECK:STDOUT:   %Self.2: @GenericInterface.%GenericInterface.type (%GenericInterface.type.073) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0db)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.3fe) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a1c)]
+// CHECK:STDOUT:     %Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.073) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0db)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -1830,7 +1830,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y [from "has_param.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.dc1
+// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.614
 // CHECK:STDOUT:   .K = imports.%PackageHasParam.import_ref.f69
 // CHECK:STDOUT:   witness = (imports.%PackageHasParam.K)
 // CHECK:STDOUT: }
@@ -1854,15 +1854,15 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %X: @AnyParam.as.Destroy.impl.%T (%T) = bind_symbolic_name X, 1 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %AnyParam: type = class_type @AnyParam, @AnyParam(%T, %X) [symbolic = %AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ee6)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.00d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.5e7)]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.5e7) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.e78)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.b3e)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.b3e) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.37f)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.60d
+// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.835
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1882,13 +1882,13 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.292: %Y.type) [from "has_param.carbon"] {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f64)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.61d)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.cb4)]
+// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.460: %Y.type) [from "has_param.carbon"] {
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf0)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.f4a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.89d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.b14)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.d82)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -1920,12 +1920,12 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.ref.loc14: <namespace> = name_ref PackageHasParam, imports.%PackageHasParam [concrete = imports.%PackageHasParam]
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, imports.%PackageHasParam.Y [concrete = constants.%Y.type]
 // CHECK:STDOUT:   %K.ref: %Y.assoc_type = name_ref K, imports.%PackageHasParam.import_ref.f69 [concrete = constants.%assoc0.494]
-// CHECK:STDOUT:   %impl.elem0: %.0fb = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
+// CHECK:STDOUT:   %impl.elem0: %.07b = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
 // CHECK:STDOUT:   %bound_method.loc14: <bound method> = bound_method %obj.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc14: %AnyParam.241 = bind_value %obj.ref
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.call: init %empty_tuple.type = call %bound_method.loc14(%.loc14)
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.acf
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.acf, @AnyParam.as.Destroy.impl.Op(constants.%GenericInterface.type.c92, constants.%GenericInterface.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.994
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.994, @AnyParam.as.Destroy.impl.Op(constants.%GenericInterface.type.c92, constants.%GenericInterface.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13: <bound method> = bound_method %obj.var, %AnyParam.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.301 = addr_of %obj.var
 // CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc13(%addr)
@@ -1963,10 +1963,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.eb2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Y.K(constants.%Self.f64) {
-// CHECK:STDOUT:   %Self => constants.%Self.f64
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.61d
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4
+// CHECK:STDOUT: specific @Y.K(constants.%Self.cf0) {
+// CHECK:STDOUT:   %Self => constants.%Self.cf0
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.f4a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.89d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Y.K(constants.%Y.facet) {
@@ -1979,7 +1979,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.560
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ee6
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.00d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%T, constants.%X) {
@@ -1994,11 +1994,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T => constants.%GenericInterface.type.c92
 // CHECK:STDOUT:   %X => constants.%GenericInterface.generic
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.241
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e1c
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.e4f
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.191
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.acf
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.f35
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.994
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%GenericInterface.type.c92, constants.%GenericInterface.generic) {
@@ -2027,39 +2027,39 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %GenericInterface.type.0da: type = generic_interface_type @GenericInterface [concrete]
 // CHECK:STDOUT:   %GenericInterface.generic: %GenericInterface.type.0da = struct_value () [concrete]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
-// CHECK:STDOUT:   %GenericInterface.type.138: type = facet_type <@GenericInterface, @GenericInterface(%U)> [symbolic]
-// CHECK:STDOUT:   %Self.13b: %GenericInterface.type.138 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %GenericInterface.type.791: type = facet_type <@GenericInterface, @GenericInterface(%U)> [symbolic]
+// CHECK:STDOUT:   %Self.54d: %GenericInterface.type.791 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.a64: type = pattern_type %GenericInterface.type.0da [concrete]
 // CHECK:STDOUT:   %AnyParam.861: type = class_type @AnyParam, @AnyParam(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
 // CHECK:STDOUT:   %complete_type.42f: <witness> = complete_type_witness %GenericInterface.type.0da [concrete]
 // CHECK:STDOUT:   %pattern_type.3ad: type = pattern_type %AnyParam.861 [concrete]
 // CHECK:STDOUT:   %AnyParam.val: %AnyParam.861 = struct_value () [concrete]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.f64: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.cf0: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y [concrete]
 // CHECK:STDOUT:   %assoc0.494: %Y.assoc_type = assoc_entity element0, imports.%PackageHasParam.import_ref.ce2 [concrete]
 // CHECK:STDOUT:   %Y.K.type: type = fn_type @Y.K [concrete]
 // CHECK:STDOUT:   %Y.K: %Y.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.61d: type = facet_access_type %Self.f64 [symbolic]
-// CHECK:STDOUT:   %pattern_type.cb4: type = pattern_type %Self.as_type.61d [symbolic]
-// CHECK:STDOUT:   %require_complete.b14: <witness> = require_complete_type %Self.as_type.61d [symbolic]
+// CHECK:STDOUT:   %Self.as_type.f4a: type = facet_access_type %Self.cf0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.89d: type = pattern_type %Self.as_type.f4a [symbolic]
+// CHECK:STDOUT:   %require_complete.d82: <witness> = require_complete_type %Self.as_type.f4a [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ee6: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.5e7: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.e78: %AnyParam.as.Destroy.impl.Op.type.5e7 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.00d: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.b3e: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.37f: %AnyParam.as.Destroy.impl.Op.type.b3e = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.4a9: type = ptr_type %AnyParam.560 [symbolic]
 // CHECK:STDOUT:   %pattern_type.84c: type = pattern_type %ptr.4a9 [symbolic]
 // CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness imports.%Y.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Y.facet: %Y.type = facet_value %AnyParam.861, (%Y.impl_witness) [concrete]
-// CHECK:STDOUT:   %.e17: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
+// CHECK:STDOUT:   %.953: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.type: type = fn_type @AnyParam.as.Y.impl.K [concrete]
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K: %AnyParam.as.Y.impl.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.f3a: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.2b9: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.0f2: %AnyParam.as.Destroy.impl.Op.type.2b9 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9f2: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.b22: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.fe5: %AnyParam.as.Destroy.impl.Op.type.b22 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.1ef: type = ptr_type %AnyParam.861 [concrete]
 // CHECK:STDOUT:   %pattern_type.cac: type = pattern_type %ptr.1ef [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.0f2, @AnyParam.as.Destroy.impl.Op(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.fe5, @AnyParam.as.Destroy.impl.Op(%GenericInterface.type.0da, %GenericInterface.generic) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2084,27 +2084,27 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.import_ref.601 = import_ref PackageHasParam//default, inst37 [no loc], unloaded
 // CHECK:STDOUT:   %PackageGenericInterface.GenericInterface: %GenericInterface.type.0da = import_ref PackageGenericInterface//default, GenericInterface, loaded [concrete = constants.%GenericInterface.generic]
 // CHECK:STDOUT:   %PackageGenericInterface.import_ref.5ab: type = import_ref PackageGenericInterface//default, loc6_28, loaded [symbolic = @GenericInterface.%U (constants.%U)]
-// CHECK:STDOUT:   %PackageGenericInterface.import_ref.c3b = import_ref PackageGenericInterface//default, inst31 [no loc], unloaded
+// CHECK:STDOUT:   %PackageGenericInterface.import_ref.792 = import_ref PackageGenericInterface//default, inst31 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.Y: type = import_ref PackageHasParam//default, Y, loaded [concrete = constants.%Y.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.dc1 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
+// CHECK:STDOUT:   %PackageHasParam.import_ref.614 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.import_ref.f69: %Y.assoc_type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%assoc0.494]
 // CHECK:STDOUT:   %PackageHasParam.K = import_ref PackageHasParam//default, K, unloaded
 // CHECK:STDOUT:   %PackageHasParam.import_ref.ce2: %Y.K.type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%Y.K]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.292: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.f64]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.60d: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ee6)]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.460: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.cf0]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.835: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.00d)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.2: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.2: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.cdc: type = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.cb9: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.aa2: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.5e7) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.e78)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.279 = impl_witness_table (%PackageHasParam.import_ref.aa2), @AnyParam.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.063: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.1a6: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.b3e) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.37f)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.297 = impl_witness_table (%PackageHasParam.import_ref.1a6), @AnyParam.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.3: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.3: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
-// CHECK:STDOUT:   %PackageGenericInterface.import_ref.53c: <witness> = import_ref PackageGenericInterface//default, loc8_70, loaded [concrete = constants.%Y.impl_witness]
+// CHECK:STDOUT:   %PackageGenericInterface.import_ref.219: <witness> = import_ref PackageGenericInterface//default, loc8_70, loaded [concrete = constants.%Y.impl_witness]
 // CHECK:STDOUT:   %PackageGenericInterface.import_ref.321: type = import_ref PackageGenericInterface//default, loc8_47, loaded [concrete = constants.%AnyParam.861]
 // CHECK:STDOUT:   %PackageGenericInterface.import_ref.ca6: type = import_ref PackageGenericInterface//default, loc8_67, loaded [concrete = constants.%Y.type]
-// CHECK:STDOUT:   %PackageGenericInterface.import_ref.456: %AnyParam.as.Y.impl.K.type = import_ref PackageGenericInterface//default, loc9_22, loaded [concrete = constants.%AnyParam.as.Y.impl.K]
-// CHECK:STDOUT:   %Y.impl_witness_table = impl_witness_table (%PackageGenericInterface.import_ref.456), @AnyParam.as.Y.impl [concrete]
+// CHECK:STDOUT:   %PackageGenericInterface.import_ref.784: %AnyParam.as.Y.impl.K.type = import_ref PackageGenericInterface//default, loc9_22, loaded [concrete = constants.%AnyParam.as.Y.impl.K]
+// CHECK:STDOUT:   %Y.impl_witness_table = impl_witness_table (%PackageGenericInterface.import_ref.784), @AnyParam.as.Y.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -2125,19 +2125,19 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericInterface.type: type = facet_type <@GenericInterface, @GenericInterface(%U)> [symbolic = %GenericInterface.type (constants.%GenericInterface.type.138)]
-// CHECK:STDOUT:   %Self: @GenericInterface.%GenericInterface.type (%GenericInterface.type.138) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.13b)]
+// CHECK:STDOUT:   %GenericInterface.type: type = facet_type <@GenericInterface, @GenericInterface(%U)> [symbolic = %GenericInterface.type (constants.%GenericInterface.type.791)]
+// CHECK:STDOUT:   %Self: @GenericInterface.%GenericInterface.type (%GenericInterface.type.791) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.54d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%PackageGenericInterface.import_ref.c3b
+// CHECK:STDOUT:     .Self = imports.%PackageGenericInterface.import_ref.792
 // CHECK:STDOUT:     witness = ()
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y [from "has_param.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.dc1
+// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.614
 // CHECK:STDOUT:   .K = imports.%PackageHasParam.import_ref.f69
 // CHECK:STDOUT:   witness = (imports.%PackageHasParam.K)
 // CHECK:STDOUT: }
@@ -2146,21 +2146,21 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %X: @AnyParam.as.Destroy.impl.%T (%T) = bind_symbolic_name X, 1 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %AnyParam: type = class_type @AnyParam, @AnyParam(%T, %X) [symbolic = %AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ee6)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.00d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.5e7)]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.5e7) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.e78)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.b3e)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.b3e) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.37f)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.60d
+// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.835
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @AnyParam.as.Y.impl: imports.%PackageGenericInterface.import_ref.321 as imports.%PackageGenericInterface.import_ref.ca6 [from "has_generic_interface.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageGenericInterface.import_ref.53c
+// CHECK:STDOUT:   witness = imports.%PackageGenericInterface.import_ref.219
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic class @AnyParam(imports.%PackageHasParam.import_ref.5ab3ec.1: type, imports.%PackageHasParam.import_ref.34c075.1: @AnyParam.%T (%T)) [from "has_param.carbon"] {
@@ -2202,25 +2202,25 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.ref.loc10: <namespace> = name_ref PackageHasParam, imports.%PackageHasParam [concrete = imports.%PackageHasParam]
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, imports.%PackageHasParam.Y [concrete = constants.%Y.type]
 // CHECK:STDOUT:   %K.ref: %Y.assoc_type = name_ref K, imports.%PackageHasParam.import_ref.f69 [concrete = constants.%assoc0.494]
-// CHECK:STDOUT:   %impl.elem0: %.e17 = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
+// CHECK:STDOUT:   %impl.elem0: %.953 = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %obj.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc10: %AnyParam.861 = bind_value %obj.ref
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.call: init %empty_tuple.type = call %bound_method.loc10(%.loc10)
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.0f2
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.0f2, @AnyParam.as.Destroy.impl.Op(constants.%GenericInterface.type.0da, constants.%GenericInterface.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.fe5
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.fe5, @AnyParam.as.Destroy.impl.Op(constants.%GenericInterface.type.0da, constants.%GenericInterface.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %obj.var, %AnyParam.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.1ef = addr_of %obj.var
 // CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc8(%addr)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.292: %Y.type) [from "has_param.carbon"] {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f64)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.61d)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.cb4)]
+// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.460: %Y.type) [from "has_param.carbon"] {
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf0)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.f4a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.89d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.b14)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.d82)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -2258,17 +2258,17 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.42f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Y.K(constants.%Self.f64) {
-// CHECK:STDOUT:   %Self => constants.%Self.f64
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.61d
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4
+// CHECK:STDOUT: specific @Y.K(constants.%Self.cf0) {
+// CHECK:STDOUT:   %Self => constants.%Self.cf0
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.f4a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.89d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl(constants.%T, constants.%X) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.560
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ee6
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.00d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%T, constants.%X) {
@@ -2283,11 +2283,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T => constants.%GenericInterface.type.0da
 // CHECK:STDOUT:   %X => constants.%GenericInterface.generic
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.861
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.f3a
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.9f2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.2b9
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.0f2
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.b22
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.fe5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%GenericInterface.type.0da, constants.%GenericInterface.generic) {
@@ -2310,7 +2310,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %GenericClass: type = class_type @GenericClass, @GenericClass(%U) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.633: <witness> = impl_witness @GenericClass.%Destroy.impl_witness_table, @GenericClass.as.Destroy.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.46d: <witness> = impl_witness @GenericClass.%Destroy.impl_witness_table, @GenericClass.as.Destroy.impl(%U) [symbolic]
 // CHECK:STDOUT:   %ptr.b1a: type = ptr_type %GenericClass [symbolic]
 // CHECK:STDOUT:   %pattern_type.0e2: type = pattern_type %ptr.b1a [symbolic]
 // CHECK:STDOUT:   %GenericClass.as.Destroy.impl.Op.type: type = fn_type @GenericClass.as.Destroy.impl.Op, @GenericClass.as.Destroy.impl(%U) [symbolic]
@@ -2327,12 +2327,12 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %pattern_type.17e: type = pattern_type %GenericClass.type [concrete]
 // CHECK:STDOUT:   %AnyParam.0dd: type = class_type @AnyParam, @AnyParam(%GenericClass.type, %GenericClass.generic) [concrete]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.f64: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.cf0: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Y.K.type: type = fn_type @Y.K [concrete]
 // CHECK:STDOUT:   %Y.K: %Y.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.61d: type = facet_access_type %Self.f64 [symbolic]
-// CHECK:STDOUT:   %pattern_type.cb4: type = pattern_type %Self.as_type.61d [symbolic]
-// CHECK:STDOUT:   %require_complete.b14: <witness> = require_complete_type %Self.as_type.61d [symbolic]
+// CHECK:STDOUT:   %Self.as_type.f4a: type = facet_access_type %Self.cf0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.89d: type = pattern_type %Self.as_type.f4a [symbolic]
+// CHECK:STDOUT:   %require_complete.d82: <witness> = require_complete_type %Self.as_type.f4a [symbolic]
 // CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness file.%Y.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.64f: type = pattern_type %AnyParam.0dd [concrete]
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.type: type = fn_type @AnyParam.as.Y.impl.K [concrete]
@@ -2344,18 +2344,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %AnyParam.val: %AnyParam.0dd = struct_value () [concrete]
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y [concrete]
 // CHECK:STDOUT:   %assoc0.494: %Y.assoc_type = assoc_entity element0, imports.%PackageHasParam.import_ref.ce2 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.138: <witness> = impl_witness imports.%Destroy.impl_witness_table.a5f, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.f10: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bef: %AnyParam.as.Destroy.impl.Op.type.f10 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.125: <witness> = impl_witness imports.%Destroy.impl_witness_table.91b, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.a82: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.fb9: %AnyParam.as.Destroy.impl.Op.type.a82 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.4a9: type = ptr_type %AnyParam.560 [symbolic]
 // CHECK:STDOUT:   %pattern_type.84c: type = pattern_type %ptr.4a9 [symbolic]
-// CHECK:STDOUT:   %.701: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.355: <witness> = impl_witness imports.%Destroy.impl_witness_table.a5f, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.0aa: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.7c3: %AnyParam.as.Destroy.impl.Op.type.0aa = struct_value () [concrete]
+// CHECK:STDOUT:   %.bc1: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.2b0: <witness> = impl_witness imports.%Destroy.impl_witness_table.91b, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.96e: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.384: %AnyParam.as.Destroy.impl.Op.type.96e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.d96: type = ptr_type %AnyParam.0dd [concrete]
 // CHECK:STDOUT:   %pattern_type.fb7: type = pattern_type %ptr.d96 [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.7c3, @AnyParam.as.Destroy.impl.Op(%GenericClass.type, %GenericClass.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.384, @AnyParam.as.Destroy.impl.Op(%GenericClass.type, %GenericClass.generic) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2376,18 +2376,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.import_ref.8f2: <witness> = import_ref PackageHasParam//default, loc4_34, loaded [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.601 = import_ref PackageHasParam//default, inst37 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.Y: type = import_ref PackageHasParam//default, Y, loaded [concrete = constants.%Y.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.dc1 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
+// CHECK:STDOUT:   %PackageHasParam.import_ref.614 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.import_ref.f69: %Y.assoc_type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%assoc0.494]
 // CHECK:STDOUT:   %PackageHasParam.K: %Y.K.type = import_ref PackageHasParam//default, K, loaded [concrete = constants.%Y.K]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.292: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.f64]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.460: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.cf0]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.ce2: %Y.K.type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%Y.K]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.60d: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.138)]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.835: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.125)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.2: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.2: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.cdc: type = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.cb9: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.b79: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.f10) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.bef)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.a5f = impl_witness_table (%PackageHasParam.import_ref.b79), @AnyParam.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.063: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.a46: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.a82) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.fb9)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.91b = impl_witness_table (%PackageHasParam.import_ref.a46), @AnyParam.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.3: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.3: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
 // CHECK:STDOUT: }
@@ -2422,7 +2422,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y [from "has_param.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.dc1
+// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.614
 // CHECK:STDOUT:   .K = imports.%PackageHasParam.import_ref.f69
 // CHECK:STDOUT:   witness = (imports.%PackageHasParam.K)
 // CHECK:STDOUT: }
@@ -2430,7 +2430,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: generic impl @GenericClass.as.Destroy.impl(@GenericClass.%U.loc6_20.2: type) {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %GenericClass: type = class_type @GenericClass, @GenericClass(%U) [symbolic = %GenericClass (constants.%GenericClass)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericClass.%Destroy.impl_witness_table, @GenericClass.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.633)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @GenericClass.%Destroy.impl_witness_table, @GenericClass.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.46d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %GenericClass.as.Destroy.impl.Op.type: type = fn_type @GenericClass.as.Destroy.impl.Op, @GenericClass.as.Destroy.impl(%U) [symbolic = %GenericClass.as.Destroy.impl.Op.type (constants.%GenericClass.as.Destroy.impl.Op.type)]
@@ -2475,15 +2475,15 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %X: @AnyParam.as.Destroy.impl.%T (%T) = bind_symbolic_name X, 1 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %AnyParam: type = class_type @AnyParam, @AnyParam(%T, %X) [symbolic = %AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.a5f, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.138)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.91b, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.125)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.f10)]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.f10) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.bef)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.a82)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.a82) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.fb9)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.60d
+// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.835
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -2496,7 +2496,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%GenericClass [symbolic = @GenericClass.as.Destroy.impl.%GenericClass (constants.%GenericClass)]
 // CHECK:STDOUT:     impl_decl @GenericClass.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@GenericClass.as.Destroy.impl.%GenericClass.as.Destroy.impl.Op.decl), @GenericClass.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericClass.as.Destroy.impl(constants.%U) [symbolic = @GenericClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.633)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @GenericClass.as.Destroy.impl(constants.%U) [symbolic = @GenericClass.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.46d)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -2532,13 +2532,13 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   fn(%self.param: @GenericClass.as.Destroy.impl.Op.%ptr (%ptr.b1a)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.292: %Y.type) [from "has_param.carbon"] {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f64)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.61d)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.cb4)]
+// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.460: %Y.type) [from "has_param.carbon"] {
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf0)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.f4a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.89d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.b14)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.d82)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -2570,12 +2570,12 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.ref.loc14: <namespace> = name_ref PackageHasParam, imports.%PackageHasParam [concrete = imports.%PackageHasParam]
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, imports.%PackageHasParam.Y [concrete = constants.%Y.type]
 // CHECK:STDOUT:   %K.ref: %Y.assoc_type = name_ref K, imports.%PackageHasParam.import_ref.f69 [concrete = constants.%assoc0.494]
-// CHECK:STDOUT:   %impl.elem0: %.701 = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
+// CHECK:STDOUT:   %impl.elem0: %.bc1 = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
 // CHECK:STDOUT:   %bound_method.loc14: <bound method> = bound_method %obj.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc14: %AnyParam.0dd = bind_value %obj.ref
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.call: init %empty_tuple.type = call %bound_method.loc14(%.loc14)
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.7c3
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.7c3, @AnyParam.as.Destroy.impl.Op(constants.%GenericClass.type, constants.%GenericClass.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.384
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.384, @AnyParam.as.Destroy.impl.Op(constants.%GenericClass.type, constants.%GenericClass.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13: <bound method> = bound_method %obj.var, %AnyParam.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.d96 = addr_of %obj.var
 // CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc13(%addr)
@@ -2601,7 +2601,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: specific @GenericClass.as.Destroy.impl(constants.%U) {
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %GenericClass => constants.%GenericClass
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.633
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.46d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericClass.as.Destroy.impl.Op(constants.%U) {
@@ -2626,10 +2626,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.398
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Y.K(constants.%Self.f64) {
-// CHECK:STDOUT:   %Self => constants.%Self.f64
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.61d
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4
+// CHECK:STDOUT: specific @Y.K(constants.%Self.cf0) {
+// CHECK:STDOUT:   %Self => constants.%Self.cf0
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.f4a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.89d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Y.K(constants.%Y.facet) {
@@ -2642,7 +2642,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.560
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.138
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.125
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%T, constants.%X) {
@@ -2657,11 +2657,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T => constants.%GenericClass.type
 // CHECK:STDOUT:   %X => constants.%GenericClass.generic
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.0dd
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.355
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2b0
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.0aa
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.7c3
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.96e
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.384
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%GenericClass.type, constants.%GenericClass.generic) {
@@ -2697,36 +2697,36 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %pattern_type.312: type = pattern_type %AnyParam.d71 [concrete]
 // CHECK:STDOUT:   %AnyParam.val: %AnyParam.d71 = struct_value () [concrete]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.f64: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.cf0: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y [concrete]
 // CHECK:STDOUT:   %assoc0.494: %Y.assoc_type = assoc_entity element0, imports.%PackageHasParam.import_ref.ce2 [concrete]
 // CHECK:STDOUT:   %Y.K.type: type = fn_type @Y.K [concrete]
 // CHECK:STDOUT:   %Y.K: %Y.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.61d: type = facet_access_type %Self.f64 [symbolic]
-// CHECK:STDOUT:   %pattern_type.cb4: type = pattern_type %Self.as_type.61d [symbolic]
-// CHECK:STDOUT:   %require_complete.b14: <witness> = require_complete_type %Self.as_type.61d [symbolic]
+// CHECK:STDOUT:   %Self.as_type.f4a: type = facet_access_type %Self.cf0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.89d: type = pattern_type %Self.as_type.f4a [symbolic]
+// CHECK:STDOUT:   %require_complete.d82: <witness> = require_complete_type %Self.as_type.f4a [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ee6: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.5e7: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.e78: %AnyParam.as.Destroy.impl.Op.type.5e7 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.00d: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.b3e: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.37f: %AnyParam.as.Destroy.impl.Op.type.b3e = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.4a9: type = ptr_type %AnyParam.560 [symbolic]
 // CHECK:STDOUT:   %pattern_type.84c: type = pattern_type %ptr.4a9 [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.4c0: <witness> = impl_witness imports.%Destroy.impl_witness_table.c53, @GenericClass.as.Destroy.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.0c8: <witness> = impl_witness imports.%Destroy.impl_witness_table.322, @GenericClass.as.Destroy.impl(%U) [symbolic]
 // CHECK:STDOUT:   %GenericClass.as.Destroy.impl.Op.type: type = fn_type @GenericClass.as.Destroy.impl.Op, @GenericClass.as.Destroy.impl(%U) [symbolic]
 // CHECK:STDOUT:   %GenericClass.as.Destroy.impl.Op: %GenericClass.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.d95: type = ptr_type %GenericClass [symbolic]
 // CHECK:STDOUT:   %pattern_type.327: type = pattern_type %ptr.d95 [symbolic]
 // CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness imports.%Y.impl_witness_table [concrete]
 // CHECK:STDOUT:   %Y.facet: %Y.type = facet_value %AnyParam.d71, (%Y.impl_witness) [concrete]
-// CHECK:STDOUT:   %.0dd: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
+// CHECK:STDOUT:   %.893: type = fn_type_with_self_type %Y.K.type, %Y.facet [concrete]
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.type: type = fn_type @AnyParam.as.Y.impl.K [concrete]
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K: %AnyParam.as.Y.impl.K.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.574: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.217: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.a08: %AnyParam.as.Destroy.impl.Op.type.217 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.950: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type.2b6: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%GenericClass.type, %GenericClass.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.a20: %AnyParam.as.Destroy.impl.Op.type.2b6 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.8ee: type = ptr_type %AnyParam.d71 [concrete]
 // CHECK:STDOUT:   %pattern_type.470: type = pattern_type %ptr.8ee [concrete]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.a08, @AnyParam.as.Destroy.impl.Op(%GenericClass.type, %GenericClass.generic) [concrete]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %AnyParam.as.Destroy.impl.Op.a20, @AnyParam.as.Destroy.impl.Op(%GenericClass.type, %GenericClass.generic) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2754,32 +2754,32 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.8f2: <witness> = import_ref PackageGenericClass//default, loc6_31, loaded [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.065 = import_ref PackageGenericClass//default, inst30 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.Y: type = import_ref PackageHasParam//default, Y, loaded [concrete = constants.%Y.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.dc1 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
+// CHECK:STDOUT:   %PackageHasParam.import_ref.614 = import_ref PackageHasParam//default, inst98 [no loc], unloaded
 // CHECK:STDOUT:   %PackageHasParam.import_ref.f69: %Y.assoc_type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%assoc0.494]
 // CHECK:STDOUT:   %PackageHasParam.K = import_ref PackageHasParam//default, K, unloaded
 // CHECK:STDOUT:   %PackageHasParam.import_ref.ce2: %Y.K.type = import_ref PackageHasParam//default, loc7_22, loaded [concrete = constants.%Y.K]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.292: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.f64]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.60d: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.ee6)]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.460: %Y.type = import_ref PackageHasParam//default, inst98 [no loc], loaded [symbolic = constants.%Self.cf0]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.835: <witness> = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.00d)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.2: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.2: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.cdc: type = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.cb9: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageHasParam.import_ref.aa2: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.5e7) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.e78)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.279 = impl_witness_table (%PackageHasParam.import_ref.aa2), @AnyParam.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.063: type = import_ref PackageHasParam//default, inst40 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageHasParam.import_ref.1a6: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.b3e) = import_ref PackageHasParam//default, loc4_33, loaded [symbolic = @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.37f)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.297 = impl_witness_table (%PackageHasParam.import_ref.1a6), @AnyParam.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.5ab3ec.3: type = import_ref PackageHasParam//default, loc4_16, loaded [symbolic = @AnyParam.%T (constants.%T)]
 // CHECK:STDOUT:   %PackageHasParam.import_ref.34c075.3: @AnyParam.%T (%T) = import_ref PackageHasParam//default, loc4_26, loaded [symbolic = @AnyParam.%X (constants.%X)]
-// CHECK:STDOUT:   %PackageGenericClass.import_ref.877 = import_ref PackageGenericClass//default, loc6_30, unloaded
+// CHECK:STDOUT:   %PackageGenericClass.import_ref.eeb = import_ref PackageGenericClass//default, loc6_30, unloaded
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.5ab3ec.2: type = import_ref PackageGenericClass//default, loc6_20, loaded [symbolic = @GenericClass.%U (constants.%U)]
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.5a9: type = import_ref PackageGenericClass//default, loc6_30, loaded [symbolic = @GenericClass.as.Destroy.impl.%GenericClass (constants.%GenericClass)]
-// CHECK:STDOUT:   %PackageGenericClass.import_ref.cb9: type = import_ref PackageGenericClass//default, inst33 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %PackageGenericClass.import_ref.5f2 = import_ref PackageGenericClass//default, loc6_30, unloaded
-// CHECK:STDOUT:   %Destroy.impl_witness_table.c53 = impl_witness_table (%PackageGenericClass.import_ref.5f2), @GenericClass.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %PackageGenericClass.import_ref.063: type = import_ref PackageGenericClass//default, inst33 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %PackageGenericClass.import_ref.33d = import_ref PackageGenericClass//default, loc6_30, unloaded
+// CHECK:STDOUT:   %Destroy.impl_witness_table.322 = impl_witness_table (%PackageGenericClass.import_ref.33d), @GenericClass.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.5ab3ec.3: type = import_ref PackageGenericClass//default, loc6_20, loaded [symbolic = @GenericClass.%U (constants.%U)]
-// CHECK:STDOUT:   %PackageGenericClass.import_ref.246: <witness> = import_ref PackageGenericClass//default, loc8_66, loaded [concrete = constants.%Y.impl_witness]
+// CHECK:STDOUT:   %PackageGenericClass.import_ref.a03: <witness> = import_ref PackageGenericClass//default, loc8_66, loaded [concrete = constants.%Y.impl_witness]
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.a0e: type = import_ref PackageGenericClass//default, loc8_43, loaded [concrete = constants.%AnyParam.d71]
 // CHECK:STDOUT:   %PackageGenericClass.import_ref.ca6: type = import_ref PackageGenericClass//default, loc8_63, loaded [concrete = constants.%Y.type]
-// CHECK:STDOUT:   %PackageGenericClass.import_ref.fbf: %AnyParam.as.Y.impl.K.type = import_ref PackageGenericClass//default, loc9_22, loaded [concrete = constants.%AnyParam.as.Y.impl.K]
-// CHECK:STDOUT:   %Y.impl_witness_table = impl_witness_table (%PackageGenericClass.import_ref.fbf), @AnyParam.as.Y.impl [concrete]
+// CHECK:STDOUT:   %PackageGenericClass.import_ref.946: %AnyParam.as.Y.impl.K.type = import_ref PackageGenericClass//default, loc9_22, loaded [concrete = constants.%AnyParam.as.Y.impl.K]
+// CHECK:STDOUT:   %Y.impl_witness_table = impl_witness_table (%PackageGenericClass.import_ref.946), @AnyParam.as.Y.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -2798,7 +2798,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y [from "has_param.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.dc1
+// CHECK:STDOUT:   .Self = imports.%PackageHasParam.import_ref.614
 // CHECK:STDOUT:   .K = imports.%PackageHasParam.import_ref.f69
 // CHECK:STDOUT:   witness = (imports.%PackageHasParam.K)
 // CHECK:STDOUT: }
@@ -2807,36 +2807,36 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %X: @AnyParam.as.Destroy.impl.%T (%T) = bind_symbolic_name X, 1 [symbolic = %X (constants.%X)]
 // CHECK:STDOUT:   %AnyParam: type = class_type @AnyParam, @AnyParam(%T, %X) [symbolic = %AnyParam (constants.%AnyParam.560)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.279, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.ee6)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.297, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.00d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.5e7)]
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.5e7) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.e78)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type: type = fn_type @AnyParam.as.Destroy.impl.Op, @AnyParam.as.Destroy.impl(%T, %X) [symbolic = %AnyParam.as.Destroy.impl.Op.type (constants.%AnyParam.as.Destroy.impl.Op.type.b3e)]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op: @AnyParam.as.Destroy.impl.%AnyParam.as.Destroy.impl.Op.type (%AnyParam.as.Destroy.impl.Op.type.b3e) = struct_value () [symbolic = %AnyParam.as.Destroy.impl.Op (constants.%AnyParam.as.Destroy.impl.Op.37f)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%PackageHasParam.import_ref.cdc as imports.%PackageHasParam.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.60d
+// CHECK:STDOUT:     witness = imports.%PackageHasParam.import_ref.835
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @GenericClass.as.Destroy.impl(imports.%PackageGenericClass.import_ref.5ab3ec.2: type) [from "has_generic_class.carbon"] {
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic = %U (constants.%U)]
 // CHECK:STDOUT:   %GenericClass: type = class_type @GenericClass, @GenericClass(%U) [symbolic = %GenericClass (constants.%GenericClass)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.c53, @GenericClass.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.4c0)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.322, @GenericClass.as.Destroy.impl(%U) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.0c8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %GenericClass.as.Destroy.impl.Op.type: type = fn_type @GenericClass.as.Destroy.impl.Op, @GenericClass.as.Destroy.impl(%U) [symbolic = %GenericClass.as.Destroy.impl.Op.type (constants.%GenericClass.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %GenericClass.as.Destroy.impl.Op: @GenericClass.as.Destroy.impl.%GenericClass.as.Destroy.impl.Op.type (%GenericClass.as.Destroy.impl.Op.type) = struct_value () [symbolic = %GenericClass.as.Destroy.impl.Op (constants.%GenericClass.as.Destroy.impl.Op)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%PackageGenericClass.import_ref.5a9 as imports.%PackageGenericClass.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%PackageGenericClass.import_ref.5a9 as imports.%PackageGenericClass.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%PackageGenericClass.import_ref.877
+// CHECK:STDOUT:     witness = imports.%PackageGenericClass.import_ref.eeb
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @AnyParam.as.Y.impl: imports.%PackageGenericClass.import_ref.a0e as imports.%PackageGenericClass.import_ref.ca6 [from "has_generic_class.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%PackageGenericClass.import_ref.246
+// CHECK:STDOUT:   witness = imports.%PackageGenericClass.import_ref.a03
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic class @AnyParam(imports.%PackageHasParam.import_ref.5ab3ec.1: type, imports.%PackageHasParam.import_ref.34c075.1: @AnyParam.%T (%T)) [from "has_param.carbon"] {
@@ -2891,25 +2891,25 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %PackageHasParam.ref.loc9: <namespace> = name_ref PackageHasParam, imports.%PackageHasParam [concrete = imports.%PackageHasParam]
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, imports.%PackageHasParam.Y [concrete = constants.%Y.type]
 // CHECK:STDOUT:   %K.ref: %Y.assoc_type = name_ref K, imports.%PackageHasParam.import_ref.f69 [concrete = constants.%assoc0.494]
-// CHECK:STDOUT:   %impl.elem0: %.0dd = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
+// CHECK:STDOUT:   %impl.elem0: %.893 = impl_witness_access constants.%Y.impl_witness, element0 [concrete = constants.%AnyParam.as.Y.impl.K]
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %obj.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc9: %AnyParam.d71 = bind_value %obj.ref
 // CHECK:STDOUT:   %AnyParam.as.Y.impl.K.call: init %empty_tuple.type = call %bound_method.loc9(%.loc9)
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.a08
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.a08, @AnyParam.as.Destroy.impl.Op(constants.%GenericClass.type, constants.%GenericClass.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.bound: <bound method> = bound_method %obj.var, constants.%AnyParam.as.Destroy.impl.Op.a20
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%AnyParam.as.Destroy.impl.Op.a20, @AnyParam.as.Destroy.impl.Op(constants.%GenericClass.type, constants.%GenericClass.generic) [concrete = constants.%AnyParam.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %obj.var, %AnyParam.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.8ee = addr_of %obj.var
 // CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc8(%addr)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.292: %Y.type) [from "has_param.carbon"] {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.f64)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.61d)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.cb4)]
+// CHECK:STDOUT: generic fn @Y.K(imports.%PackageHasParam.import_ref.460: %Y.type) [from "has_param.carbon"] {
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.cf0)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.f4a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.89d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.b14)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic = %require_complete (constants.%require_complete.d82)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -2958,17 +2958,17 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.426
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Y.K(constants.%Self.f64) {
-// CHECK:STDOUT:   %Self => constants.%Self.f64
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.61d
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4
+// CHECK:STDOUT: specific @Y.K(constants.%Self.cf0) {
+// CHECK:STDOUT:   %Self => constants.%Self.cf0
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.f4a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.89d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl(constants.%T, constants.%X) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %X => constants.%X
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.560
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ee6
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.00d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%T, constants.%X) {
@@ -2982,7 +2982,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: specific @GenericClass.as.Destroy.impl(constants.%U) {
 // CHECK:STDOUT:   %U => constants.%U
 // CHECK:STDOUT:   %GenericClass => constants.%GenericClass
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.4c0
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.0c8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericClass.as.Destroy.impl.Op(constants.%U) {
@@ -2996,11 +2996,11 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %T => constants.%GenericClass.type
 // CHECK:STDOUT:   %X => constants.%GenericClass.generic
 // CHECK:STDOUT:   %AnyParam => constants.%AnyParam.d71
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.574
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.950
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.217
-// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.a08
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op.type => constants.%AnyParam.as.Destroy.impl.Op.type.2b6
+// CHECK:STDOUT:   %AnyParam.as.Destroy.impl.Op => constants.%AnyParam.as.Destroy.impl.Op.a20
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AnyParam.as.Destroy.impl.Op(constants.%GenericClass.type, constants.%GenericClass.generic) {
@@ -3015,21 +3015,21 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Extra1.type: type = facet_type <@Extra1> [concrete]
-// CHECK:STDOUT:   %Self.66c: %Extra1.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ea5: %Extra1.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra2.type: type = facet_type <@Extra2> [concrete]
-// CHECK:STDOUT:   %Self.2ed: %Extra2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.14e: %Extra2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra3.type: type = facet_type <@Extra3> [concrete]
-// CHECK:STDOUT:   %Self.622: %Extra3.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.809: %Extra3.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra4.type: type = facet_type <@Extra4> [concrete]
-// CHECK:STDOUT:   %Self.234: %Extra4.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.a22: %Extra4.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra5.type: type = facet_type <@Extra5> [concrete]
-// CHECK:STDOUT:   %Self.d1b: %Extra5.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.3ed: %Extra5.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra6.type: type = facet_type <@Extra6> [concrete]
-// CHECK:STDOUT:   %Self.aeb: %Extra6.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.f61: %Extra6.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra7.type: type = facet_type <@Extra7> [concrete]
-// CHECK:STDOUT:   %Self.b7e: %Extra7.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.99a: %Extra7.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Extra8.type: type = facet_type <@Extra8> [concrete]
-// CHECK:STDOUT:   %Self.f90: %Extra8.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.862: %Extra8.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
@@ -3046,21 +3046,21 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
 // CHECK:STDOUT:   %tuple.type.c53: type = tuple_type (type, type, type, type, type, type, type, type) [concrete]
-// CHECK:STDOUT:   %tuple.type.15d: type = tuple_type (%Extra1.type, %Extra2.type, %Extra3.type, %Extra4.type, %Extra5.type, %Extra6.type, %Extra7.type, %Extra8.type) [concrete]
-// CHECK:STDOUT:   %C.69b: type = class_type @C, @C(%tuple.type.15d) [concrete]
+// CHECK:STDOUT:   %tuple.type.350: type = tuple_type (%Extra1.type, %Extra2.type, %Extra3.type, %Extra4.type, %Extra5.type, %Extra6.type, %Extra7.type, %Extra8.type) [concrete]
+// CHECK:STDOUT:   %C.62d: type = class_type @C, @C(%tuple.type.350) [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %pattern_type.e23: type = pattern_type %C.69b [concrete]
+// CHECK:STDOUT:   %pattern_type.8ad: type = pattern_type %C.62d [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.69b, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value %C.62d, (%I.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -3113,8 +3113,8 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:     %Extra7.ref: type = name_ref Extra7, file.%Extra7.decl [concrete = constants.%Extra7.type]
 // CHECK:STDOUT:     %Extra8.ref: type = name_ref Extra8, file.%Extra8.decl [concrete = constants.%Extra8.type]
 // CHECK:STDOUT:     %.loc16_71: %tuple.type.c53 = tuple_literal (%Extra1.ref, %Extra2.ref, %Extra3.ref, %Extra4.ref, %Extra5.ref, %Extra6.ref, %Extra7.ref, %Extra8.ref)
-// CHECK:STDOUT:     %.loc16_72: type = converted %.loc16_71, constants.%tuple.type.15d [concrete = constants.%tuple.type.15d]
-// CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%tuple.type.15d) [concrete = constants.%C.69b]
+// CHECK:STDOUT:     %.loc16_72: type = converted %.loc16_71, constants.%tuple.type.350 [concrete = constants.%tuple.type.350]
+// CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%tuple.type.350) [concrete = constants.%C.62d]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@C.as.I.impl.%C.as.I.impl.F.decl), @C.as.I.impl [concrete]
@@ -3122,7 +3122,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra1 {
-// CHECK:STDOUT:   %Self: %Extra1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.66c]
+// CHECK:STDOUT:   %Self: %Extra1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ea5]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3130,7 +3130,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra2 {
-// CHECK:STDOUT:   %Self: %Extra2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2ed]
+// CHECK:STDOUT:   %Self: %Extra2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.14e]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3138,7 +3138,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra3 {
-// CHECK:STDOUT:   %Self: %Extra3.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.622]
+// CHECK:STDOUT:   %Self: %Extra3.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.809]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3146,7 +3146,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra4 {
-// CHECK:STDOUT:   %Self: %Extra4.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.234]
+// CHECK:STDOUT:   %Self: %Extra4.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a22]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3154,7 +3154,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra5 {
-// CHECK:STDOUT:   %Self: %Extra5.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.d1b]
+// CHECK:STDOUT:   %Self: %Extra5.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3ed]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3162,7 +3162,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra6 {
-// CHECK:STDOUT:   %Self: %Extra6.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.aeb]
+// CHECK:STDOUT:   %Self: %Extra6.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f61]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3170,7 +3170,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra7 {
-// CHECK:STDOUT:   %Self: %Extra7.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b7e]
+// CHECK:STDOUT:   %Self: %Extra7.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.99a]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3178,7 +3178,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra8 {
-// CHECK:STDOUT:   %Self: %Extra8.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f90]
+// CHECK:STDOUT:   %Self: %Extra8.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.862]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -3186,18 +3186,18 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc14_26.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc14_26.1: type = splice_block %.loc14_26.2 [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc14_26.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc14_26.2: type = converted %Self.ref, %Self.as_type.loc14_26.2 [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc14_26.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc14_26.1: type = splice_block %.loc14_26.2 [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc14_26.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc14_26.2: type = converted %Self.ref, %Self.as_type.loc14_26.2 [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc14_26.1 (%Self.as_type.b70) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc14_26.1 (%Self.as_type.4af) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -3238,12 +3238,12 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.I.impl: %C as %I.ref {
 // CHECK:STDOUT:   %C.as.I.impl.F.decl: %C.as.I.impl.F.type = fn_decl @C.as.I.impl.F [concrete = constants.%C.as.I.impl.F] {
-// CHECK:STDOUT:     %self.patt: %pattern_type.e23 = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: %pattern_type.e23 = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: %pattern_type.8ad = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: %pattern_type.8ad = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: %C.69b = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.I.impl.%C [concrete = constants.%C.69b]
-// CHECK:STDOUT:     %self: %C.69b = bind_name self, %self.param
+// CHECK:STDOUT:     %self.param: %C.62d = value_param call_param0
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.I.impl.%C [concrete = constants.%C.62d]
+// CHECK:STDOUT:     %self: %C.62d = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -3281,14 +3281,14 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc14_26.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc14_26.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc14_26.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc14_26.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc14_26.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc14_26.1 (%Self.as_type.b70));
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc14_26.1 (%Self.as_type.4af));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: fn @C.as.I.impl.F(%self.param: %C.69b) {
+// CHECK:STDOUT: fn @C.as.I.impl.F(%self.param: %C.62d) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -3310,22 +3310,22 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.1d2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc14_26.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc14_26.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%tuple.type.15d) {
-// CHECK:STDOUT:   %T.loc13_9.1 => constants.%tuple.type.15d
+// CHECK:STDOUT: specific @C(constants.%tuple.type.350) {
+// CHECK:STDOUT:   %T.loc13_9.1 => constants.%tuple.type.350
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%I.facet) {
 // CHECK:STDOUT:   %Self => constants.%I.facet
-// CHECK:STDOUT:   %Self.as_type.loc14_26.1 => constants.%C.69b
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e23
+// CHECK:STDOUT:   %Self.as_type.loc14_26.1 => constants.%C.62d
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8ad
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_use_has_extra_interfaces.carbon
@@ -3342,13 +3342,13 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Test.type: type = fn_type @Test [concrete]
 // CHECK:STDOUT:   %Test: %Test.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.013: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.c19: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, imports.%HasExtraInterfaces.import_ref.d54 [concrete]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.013 [symbolic]
-// CHECK:STDOUT:   %pattern_type.e10: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.c19 [symbolic]
+// CHECK:STDOUT:   %pattern_type.9ac: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
@@ -3364,7 +3364,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Extra2.type: type = facet_type <@Extra2> [concrete]
 // CHECK:STDOUT:   %Extra1.type: type = facet_type <@Extra1> [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (%Extra1.type, %Extra2.type, %Extra3.type, %Extra4.type, %Extra5.type, %Extra6.type, %Extra7.type, %Extra8.type) [concrete]
-// CHECK:STDOUT:   %C.074: type = class_type @C, @C(%tuple.type) [concrete]
+// CHECK:STDOUT:   %C.317: type = class_type @C, @C(%tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -3382,28 +3382,28 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.8f2: <witness> = import_ref HasExtraInterfaces//default, loc13_20, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.4c0 = import_ref HasExtraInterfaces//default, inst68 [no loc], unloaded
 // CHECK:STDOUT:   %HasExtraInterfaces.I: type = import_ref HasExtraInterfaces//default, I, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.e5d = import_ref HasExtraInterfaces//default, inst124 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.b2b = import_ref HasExtraInterfaces//default, inst124 [no loc], unloaded
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.be9: %I.assoc_type = import_ref HasExtraInterfaces//default, loc14_33, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %HasExtraInterfaces.F = import_ref HasExtraInterfaces//default, F, unloaded
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.d54: %I.F.type = import_ref HasExtraInterfaces//default, loc14_33, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.1db: %I.type = import_ref HasExtraInterfaces//default, inst124 [no loc], loaded [symbolic = constants.%Self.013]
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.21a = import_ref HasExtraInterfaces//default, loc13_19, unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.81b: %I.type = import_ref HasExtraInterfaces//default, inst124 [no loc], loaded [symbolic = constants.%Self.c19]
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.5b7 = import_ref HasExtraInterfaces//default, loc13_19, unloaded
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.5ab3ec.2: type = import_ref HasExtraInterfaces//default, loc13_9, loaded [symbolic = @C.%T (constants.%T)]
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.db0: type = import_ref HasExtraInterfaces//default, loc13_19, loaded [symbolic = @C.as.Destroy.impl.%C (constants.%C.c77)]
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.cb9: type = import_ref HasExtraInterfaces//default, inst71 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.251 = import_ref HasExtraInterfaces//default, loc13_19, unloaded
-// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%HasExtraInterfaces.import_ref.251), @C.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.063: type = import_ref HasExtraInterfaces//default, inst71 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.ecf = import_ref HasExtraInterfaces//default, loc13_19, unloaded
+// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%HasExtraInterfaces.import_ref.ecf), @C.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.5ab3ec.3: type = import_ref HasExtraInterfaces//default, loc13_9, loaded [symbolic = @C.%T (constants.%T)]
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.bca = import_ref HasExtraInterfaces//default, loc16_79, unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.9c8 = import_ref HasExtraInterfaces//default, inst54 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.dfe = import_ref HasExtraInterfaces//default, inst49 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.6b6 = import_ref HasExtraInterfaces//default, inst44 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.576 = import_ref HasExtraInterfaces//default, inst39 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.0dd = import_ref HasExtraInterfaces//default, inst34 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.f83 = import_ref HasExtraInterfaces//default, inst29 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.975 = import_ref HasExtraInterfaces//default, inst24 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.a3c = import_ref HasExtraInterfaces//default, inst19 [no loc], unloaded
-// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.aa8: type = import_ref HasExtraInterfaces//default, loc16_72, loaded [concrete = constants.%C.074]
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.1ca = import_ref HasExtraInterfaces//default, loc16_79, unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.2e7 = import_ref HasExtraInterfaces//default, inst54 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.8e6 = import_ref HasExtraInterfaces//default, inst49 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.87e = import_ref HasExtraInterfaces//default, inst44 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.3f8 = import_ref HasExtraInterfaces//default, inst39 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.b19 = import_ref HasExtraInterfaces//default, inst34 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.d69 = import_ref HasExtraInterfaces//default, inst29 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.3ef = import_ref HasExtraInterfaces//default, inst24 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.695 = import_ref HasExtraInterfaces//default, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %HasExtraInterfaces.import_ref.f47: type = import_ref HasExtraInterfaces//default, loc16_72, loaded [concrete = constants.%C.317]
 // CHECK:STDOUT:   %HasExtraInterfaces.import_ref.301: type = import_ref HasExtraInterfaces//default, loc16_77, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -3431,56 +3431,56 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%HasExtraInterfaces.import_ref.be9
 // CHECK:STDOUT:   witness = (imports.%HasExtraInterfaces.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra8 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.9c8
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.2e7
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra7 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.dfe
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.8e6
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra6 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.6b6
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.87e
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra5 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.576
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.3f8
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra4 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.0dd
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.b19
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra3 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.f83
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.d69
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra2 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.975
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.3ef
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Extra1 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.a3c
+// CHECK:STDOUT:   .Self = imports.%HasExtraInterfaces.import_ref.695
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -3493,15 +3493,15 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%HasExtraInterfaces.import_ref.db0 as imports.%HasExtraInterfaces.import_ref.cb9 {
+// CHECK:STDOUT:   impl: imports.%HasExtraInterfaces.import_ref.db0 as imports.%HasExtraInterfaces.import_ref.063 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%HasExtraInterfaces.import_ref.21a
+// CHECK:STDOUT:     witness = imports.%HasExtraInterfaces.import_ref.5b7
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl: imports.%HasExtraInterfaces.import_ref.aa8 as imports.%HasExtraInterfaces.import_ref.301 [from "has_extra_interfaces.carbon"] {
+// CHECK:STDOUT: impl @C.as.I.impl: imports.%HasExtraInterfaces.import_ref.f47 as imports.%HasExtraInterfaces.import_ref.301 [from "has_extra_interfaces.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%HasExtraInterfaces.import_ref.bca
+// CHECK:STDOUT:   witness = imports.%HasExtraInterfaces.import_ref.1ca
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic class @C(imports.%HasExtraInterfaces.import_ref.5ab3ec.1: type) [from "has_extra_interfaces.carbon"] {
@@ -3526,10 +3526,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%HasExtraInterfaces.import_ref.1db: %I.type) [from "has_extra_interfaces.carbon"] {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.013)]
+// CHECK:STDOUT: generic fn @I.F(imports.%HasExtraInterfaces.import_ref.81b: %I.type) [from "has_extra_interfaces.carbon"] {
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.c19)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.e10)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.9ac)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -3555,10 +3555,10 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.013) {
-// CHECK:STDOUT:   %Self => constants.%Self.013
+// CHECK:STDOUT: specific @I.F(constants.%Self.c19) {
+// CHECK:STDOUT:   %Self => constants.%Self.c19
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e10
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.9ac
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
diff --git a/toolchain/check/testdata/impl/lookup/instance_method.carbon b/toolchain/check/testdata/impl/lookup/instance_method.carbon
index e3319fd0c7d3..0c7758db8d0b 100644
--- a/toolchain/check/testdata/impl/lookup/instance_method.carbon
+++ b/toolchain/check/testdata/impl/lookup/instance_method.carbon
@@ -33,9 +33,9 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
@@ -61,7 +61,7 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.832: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.6ae: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -103,22 +103,22 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc18_14.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc18_14.1: type = splice_block %.loc18_14.2 [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc18_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc18_14.2: type = converted %Self.ref, %Self.as_type.loc18_14.2 [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc18_14.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc18_14.1: type = splice_block %.loc18_14.2 [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc18_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc18_14.2: type = converted %Self.ref, %Self.as_type.loc18_14.2 [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc18_14.1 (%Self.as_type.b70) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc18_14.1 (%Self.as_type.4af) = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
@@ -189,11 +189,11 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc18_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc18_14.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc18_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc18_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc18_14.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc18_14.1 (%Self.as_type.b70)) -> %i32;
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc18_14.1 (%Self.as_type.4af)) -> %i32;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.I.impl.F(%self.param: %C) -> %i32;
@@ -204,7 +204,7 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
 // CHECK:STDOUT:   %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.832 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.6ae = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.I.impl.F.call: init %i32 = call %bound_method(%c.ref)
 // CHECK:STDOUT:   %.loc28_15.1: %i32 = value_of_initializer %C.as.I.impl.F.call
@@ -212,10 +212,10 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT:   return %.loc28_15.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc18_14.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc18_14.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%I.facet) {
diff --git a/toolchain/check/testdata/impl/lookup/lookup_interface_with_enclosing_generic_inside_rewrite_constraint.carbon b/toolchain/check/testdata/impl/lookup/lookup_interface_with_enclosing_generic_inside_rewrite_constraint.carbon
index 362503d12d07..02a626d54a6f 100644
--- a/toolchain/check/testdata/impl/lookup/lookup_interface_with_enclosing_generic_inside_rewrite_constraint.carbon
+++ b/toolchain/check/testdata/impl/lookup/lookup_interface_with_enclosing_generic_inside_rewrite_constraint.carbon
@@ -110,19 +110,19 @@ fn F() {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Outer.generic: %Outer.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Outer.9d6: type = class_type @Outer, @Outer(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %Y.type.49b: type = facet_type <@Y, @Y(%OuterParam)> [symbolic]
-// CHECK:STDOUT:   %Self.fa7: %Y.type.49b = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Y.type.269: type = facet_type <@Y, @Y(%OuterParam)> [symbolic]
+// CHECK:STDOUT:   %Self.86f: %Y.type.269 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Y.assoc_type.56e: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic]
 // CHECK:STDOUT:   %assoc0.044: %Y.assoc_type.56e = assoc_entity element0, @Y.%T [symbolic]
-// CHECK:STDOUT:   %.Self.c19: %Y.type.49b = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Y.type.49b [symbolic]
-// CHECK:STDOUT:   %.Self.as_type.4b2: type = facet_access_type %.Self.c19 [symbolic]
-// CHECK:STDOUT:   %Y.lookup_impl_witness.369: <witness> = lookup_impl_witness %.Self.c19, @Y, @Y(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %Y.facet.1b9: %Y.type.49b = facet_value %.Self.as_type.4b2, (%Y.lookup_impl_witness.369) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.409: type = impl_witness_access %Y.lookup_impl_witness.369, element0 [symbolic]
-// CHECK:STDOUT:   %Y_where.type.324: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.409 = %empty_tuple.type> [symbolic]
-// CHECK:STDOUT:   %H: %Y_where.type.324 = bind_symbolic_name H, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f71: type = pattern_type %Y_where.type.324 [symbolic]
+// CHECK:STDOUT:   %.Self.2d2: %Y.type.269 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Y.type.269 [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.3ad: type = facet_access_type %.Self.2d2 [symbolic]
+// CHECK:STDOUT:   %Y.lookup_impl_witness.617: <witness> = lookup_impl_witness %.Self.2d2, @Y, @Y(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %Y.facet.ddc: %Y.type.269 = facet_value %.Self.as_type.3ad, (%Y.lookup_impl_witness.617) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.a39: type = impl_witness_access %Y.lookup_impl_witness.617, element0 [symbolic]
+// CHECK:STDOUT:   %Y_where.type.194: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.a39 = %empty_tuple.type> [symbolic]
+// CHECK:STDOUT:   %H: %Y_where.type.194 = bind_symbolic_name H, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.e35: type = pattern_type %Y_where.type.194 [symbolic]
 // CHECK:STDOUT:   %Outer.G.type.d49: type = fn_type @Outer.G, @Outer(%OuterParam) [symbolic]
 // CHECK:STDOUT:   %Outer.G.f3c: %Outer.G.type.d49 = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
@@ -136,24 +136,24 @@ fn F() {
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Outer.8f5: type = class_type @Outer, @Outer(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %Y.type.080: type = facet_type <@Y, @Y(%empty_tuple.type)> [concrete]
+// CHECK:STDOUT:   %Y.type.400: type = facet_type <@Y, @Y(%empty_tuple.type)> [concrete]
 // CHECK:STDOUT:   %Outer.G.type.96c: type = fn_type @Outer.G, @Outer(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %Outer.G.510: %Outer.G.type.96c = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.37b: %Y.type.080 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Self.3a4: %Y.type.080 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %.Self.0c5: %Y.type.400 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Self.6da: %Y.type.400 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Y.assoc_type.06e: type = assoc_entity_type @Y, @Y(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %assoc0.0a6: %Y.assoc_type.06e = assoc_entity element0, @Y.%T [concrete]
-// CHECK:STDOUT:   %.Self.as_type.03a: type = facet_access_type %.Self.37b [symbolic_self]
-// CHECK:STDOUT:   %Y.lookup_impl_witness.218: <witness> = lookup_impl_witness %.Self.37b, @Y, @Y(%empty_tuple.type) [symbolic_self]
-// CHECK:STDOUT:   %Y.facet.1bc: %Y.type.080 = facet_value %.Self.as_type.03a, (%Y.lookup_impl_witness.218) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.a8c: type = impl_witness_access %Y.lookup_impl_witness.218, element0 [symbolic_self]
-// CHECK:STDOUT:   %Y_where.type.8eb: type = facet_type <@Y, @Y(%empty_tuple.type) where %impl.elem0.a8c = %empty_tuple.type> [concrete]
+// CHECK:STDOUT:   %.Self.as_type.4c1: type = facet_access_type %.Self.0c5 [symbolic_self]
+// CHECK:STDOUT:   %Y.lookup_impl_witness.306: <witness> = lookup_impl_witness %.Self.0c5, @Y, @Y(%empty_tuple.type) [symbolic_self]
+// CHECK:STDOUT:   %Y.facet.359: %Y.type.400 = facet_value %.Self.as_type.4c1, (%Y.lookup_impl_witness.306) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.bb2: type = impl_witness_access %Y.lookup_impl_witness.306, element0 [symbolic_self]
+// CHECK:STDOUT:   %Y_where.type.040: type = facet_type <@Y, @Y(%empty_tuple.type) where %impl.elem0.bb2 = %empty_tuple.type> [concrete]
 // CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness file.%Y.impl_witness_table [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %facet_value: %Y_where.type.8eb = facet_value %C, (%Y.impl_witness) [concrete]
-// CHECK:STDOUT:   %complete_type.12f: <witness> = complete_type_witness %Y.type.080 [concrete]
-// CHECK:STDOUT:   %pattern_type.ce4: type = pattern_type %Y_where.type.8eb [concrete]
+// CHECK:STDOUT:   %facet_value: %Y_where.type.040 = facet_value %C, (%Y.impl_witness) [concrete]
+// CHECK:STDOUT:   %complete_type.29b: <witness> = complete_type_witness %Y.type.400 [concrete]
+// CHECK:STDOUT:   %pattern_type.b38: type = pattern_type %Y_where.type.040 [concrete]
 // CHECK:STDOUT:   %Outer.G.specific_fn: <specific function> = specific_function %Outer.G.510, @Outer.G(%empty_tuple.type, %facet_value) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -187,19 +187,19 @@ fn F() {
 // CHECK:STDOUT:     %.loc58_18: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc58_19: type = converted %.loc58_18, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %Outer: type = class_type @Outer, @Outer(constants.%empty_tuple.type) [concrete = constants.%Outer.8f5]
-// CHECK:STDOUT:     %.loc58_20: type = specific_constant @Outer.%Y.decl, @Outer(constants.%empty_tuple.type) [concrete = constants.%Y.type.080]
-// CHECK:STDOUT:     %Y.ref: type = name_ref Y, %.loc58_20 [concrete = constants.%Y.type.080]
-// CHECK:STDOUT:     %.Self: %Y.type.080 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.37b]
-// CHECK:STDOUT:     %.Self.ref: %Y.type.080 = name_ref .Self, %.Self [symbolic_self = constants.%.Self.37b]
+// CHECK:STDOUT:     %.loc58_20: type = specific_constant @Outer.%Y.decl, @Outer(constants.%empty_tuple.type) [concrete = constants.%Y.type.400]
+// CHECK:STDOUT:     %Y.ref: type = name_ref Y, %.loc58_20 [concrete = constants.%Y.type.400]
+// CHECK:STDOUT:     %.Self: %Y.type.400 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.0c5]
+// CHECK:STDOUT:     %.Self.ref: %Y.type.400 = name_ref .Self, %.Self [symbolic_self = constants.%.Self.0c5]
 // CHECK:STDOUT:     %.loc58_29.1: %Y.assoc_type.06e = specific_constant @T.%assoc0, @Y(constants.%empty_tuple.type) [concrete = constants.%assoc0.0a6]
 // CHECK:STDOUT:     %T.ref: %Y.assoc_type.06e = name_ref T, %.loc58_29.1 [concrete = constants.%assoc0.0a6]
-// CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.03a]
-// CHECK:STDOUT:     %.loc58_29.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.03a]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Y.lookup_impl_witness.218, element0 [symbolic_self = constants.%impl.elem0.a8c]
+// CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.4c1]
+// CHECK:STDOUT:     %.loc58_29.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.4c1]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Y.lookup_impl_witness.306, element0 [symbolic_self = constants.%impl.elem0.bb2]
 // CHECK:STDOUT:     %.loc58_35.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc58_35.2: type = converted %.loc58_35.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %.loc58_23: type = where_expr %.Self [concrete = constants.%Y_where.type.8eb] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%Y.type.080
+// CHECK:STDOUT:     %.loc58_23: type = where_expr %.Self [concrete = constants.%Y_where.type.040] {
+// CHECK:STDOUT:       requirement_base_facet_type constants.%Y.type.400
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc58_35.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
@@ -212,13 +212,13 @@ fn F() {
 // CHECK:STDOUT: generic interface @Y(@Outer.%OuterParam.loc49_13.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %OuterParam: type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.49b)]
-// CHECK:STDOUT:   %Self.2: @Y.%Y.type (%Y.type.49b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.fa7)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.269)]
+// CHECK:STDOUT:   %Self.2: @Y.%Y.type (%Y.type.269) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.86f)]
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.56e)]
 // CHECK:STDOUT:   %assoc0: @Y.%Y.assoc_type (%Y.assoc_type.56e) = assoc_entity element0, %T [symbolic = %assoc0 (constants.%assoc0.044)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Y.%Y.type (%Y.type.49b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.fa7)]
+// CHECK:STDOUT:     %Self.1: @Y.%Y.type (%Y.type.269) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.86f)]
 // CHECK:STDOUT:     %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:       %assoc0: @Y.%Y.assoc_type (%Y.assoc_type.56e) = assoc_entity element0, @Y.%T [symbolic = @Y.%assoc0 (constants.%assoc0.044)]
 // CHECK:STDOUT:     }
@@ -230,7 +230,7 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(@Outer.%OuterParam.loc49_13.2: type, @Y.%Self.1: @Y.%Y.type (%Y.type.49b)) {
+// CHECK:STDOUT: generic assoc_const @T(@Outer.%OuterParam.loc49_13.2: type, @Y.%Self.1: @Y.%Y.type (%Y.type.269)) {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -272,34 +272,34 @@ fn F() {
 // CHECK:STDOUT:   %OuterParam.loc49_13.1: type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam.loc49_13.1 (constants.%OuterParam)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam.loc49_13.1)> [symbolic = %Y.type (constants.%Y.type.49b)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam.loc49_13.1)> [symbolic = %Y.type (constants.%Y.type.269)]
 // CHECK:STDOUT:   %Outer.G.type: type = fn_type @Outer.G, @Outer(%OuterParam.loc49_13.1) [symbolic = %Outer.G.type (constants.%Outer.G.type.d49)]
 // CHECK:STDOUT:   %Outer.G: @Outer.%Outer.G.type (%Outer.G.type.d49) = struct_value () [symbolic = %Outer.G (constants.%Outer.G.f3c)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %Y.decl: type = interface_decl @Y [symbolic = @Outer.%Y.type (constants.%Y.type.49b)] {} {}
+// CHECK:STDOUT:     %Y.decl: type = interface_decl @Y [symbolic = @Outer.%Y.type (constants.%Y.type.269)] {} {}
 // CHECK:STDOUT:     %Outer.G.decl: @Outer.%Outer.G.type (%Outer.G.type.d49) = fn_decl @Outer.G [symbolic = @Outer.%Outer.G (constants.%Outer.G.f3c)] {
-// CHECK:STDOUT:       %H.patt: @Outer.G.%pattern_type (%pattern_type.f71) = symbolic_binding_pattern H, 1 [concrete]
+// CHECK:STDOUT:       %H.patt: @Outer.G.%pattern_type (%pattern_type.e35) = symbolic_binding_pattern H, 1 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %.loc54_14.1: type = splice_block %.loc54_14.2 [symbolic = %Y_where.type (constants.%Y_where.type.324)] {
+// CHECK:STDOUT:       %.loc54_14.1: type = splice_block %.loc54_14.2 [symbolic = %Y_where.type (constants.%Y_where.type.194)] {
 // CHECK:STDOUT:         %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
-// CHECK:STDOUT:         %.loc54_12: type = specific_constant @Outer.%Y.decl, @Outer(constants.%OuterParam) [symbolic = %Y.type (constants.%Y.type.49b)]
-// CHECK:STDOUT:         %Y.ref: type = name_ref Y, %.loc54_12 [symbolic = %Y.type (constants.%Y.type.49b)]
-// CHECK:STDOUT:         %.Self.3: @Outer.G.%Y.type (%Y.type.49b) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.c19)]
-// CHECK:STDOUT:         %.Self.ref: @Outer.G.%Y.type (%Y.type.49b) = name_ref .Self, %.Self.3 [symbolic = %.Self.1 (constants.%.Self.c19)]
+// CHECK:STDOUT:         %.loc54_12: type = specific_constant @Outer.%Y.decl, @Outer(constants.%OuterParam) [symbolic = %Y.type (constants.%Y.type.269)]
+// CHECK:STDOUT:         %Y.ref: type = name_ref Y, %.loc54_12 [symbolic = %Y.type (constants.%Y.type.269)]
+// CHECK:STDOUT:         %.Self.3: @Outer.G.%Y.type (%Y.type.269) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.2d2)]
+// CHECK:STDOUT:         %.Self.ref: @Outer.G.%Y.type (%Y.type.269) = name_ref .Self, %.Self.3 [symbolic = %.Self.1 (constants.%.Self.2d2)]
 // CHECK:STDOUT:         %.loc54_20.1: @Outer.G.%Y.assoc_type (%Y.assoc_type.56e) = specific_constant @T.%assoc0, @Y(constants.%OuterParam) [symbolic = %assoc0 (constants.%assoc0.044)]
 // CHECK:STDOUT:         %T.ref: @Outer.G.%Y.assoc_type (%Y.assoc_type.56e) = name_ref T, %.loc54_20.1 [symbolic = %assoc0 (constants.%assoc0.044)]
-// CHECK:STDOUT:         %.Self.as_type.loc54_20.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc54_20.1 (constants.%.Self.as_type.4b2)]
-// CHECK:STDOUT:         %.loc54_20.2: type = converted %.Self.ref, %.Self.as_type.loc54_20.2 [symbolic = %.Self.as_type.loc54_20.1 (constants.%.Self.as_type.4b2)]
-// CHECK:STDOUT:         %impl.elem0.loc54_20.2: type = impl_witness_access constants.%Y.lookup_impl_witness.369, element0 [symbolic = %impl.elem0.loc54_20.1 (constants.%impl.elem0.409)]
+// CHECK:STDOUT:         %.Self.as_type.loc54_20.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc54_20.1 (constants.%.Self.as_type.3ad)]
+// CHECK:STDOUT:         %.loc54_20.2: type = converted %.Self.ref, %.Self.as_type.loc54_20.2 [symbolic = %.Self.as_type.loc54_20.1 (constants.%.Self.as_type.3ad)]
+// CHECK:STDOUT:         %impl.elem0.loc54_20.2: type = impl_witness_access constants.%Y.lookup_impl_witness.617, element0 [symbolic = %impl.elem0.loc54_20.1 (constants.%impl.elem0.a39)]
 // CHECK:STDOUT:         %.loc54_26.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:         %.loc54_26.2: type = converted %.loc54_26.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:         %.loc54_14.2: type = where_expr %.Self.3 [symbolic = %Y_where.type (constants.%Y_where.type.324)] {
-// CHECK:STDOUT:           requirement_base_facet_type constants.%Y.type.49b
+// CHECK:STDOUT:         %.loc54_14.2: type = where_expr %.Self.3 [symbolic = %Y_where.type (constants.%Y_where.type.194)] {
+// CHECK:STDOUT:           requirement_base_facet_type constants.%Y.type.269
 // CHECK:STDOUT:           requirement_rewrite %impl.elem0.loc54_20.2, %.loc54_26.2
 // CHECK:STDOUT:         }
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %H.loc54_8.2: @Outer.G.%Y_where.type (%Y_where.type.324) = bind_symbolic_name H, 1 [symbolic = %H.loc54_8.1 (constants.%H)]
+// CHECK:STDOUT:       %H.loc54_8.2: @Outer.G.%Y_where.type (%Y_where.type.194) = bind_symbolic_name H, 1 [symbolic = %H.loc54_8.1 (constants.%H)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.9d6 [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.9d6)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
@@ -317,19 +317,19 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C;
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Outer.G(@Outer.%OuterParam.loc49_13.2: type, %H.loc54_8.2: @Outer.G.%Y_where.type (%Y_where.type.324)) {
+// CHECK:STDOUT: generic fn @Outer.G(@Outer.%OuterParam.loc49_13.2: type, %H.loc54_8.2: @Outer.G.%Y_where.type (%Y_where.type.194)) {
 // CHECK:STDOUT:   %OuterParam: type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.49b)]
-// CHECK:STDOUT:   %.Self.1: @Outer.G.%Y.type (%Y.type.49b) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.c19)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.269)]
+// CHECK:STDOUT:   %.Self.1: @Outer.G.%Y.type (%Y.type.269) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.2d2)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Y.type [symbolic = %require_complete (constants.%require_complete)]
 // CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.56e)]
 // CHECK:STDOUT:   %assoc0: @Outer.G.%Y.assoc_type (%Y.assoc_type.56e) = assoc_entity element0, @Y.%T [symbolic = %assoc0 (constants.%assoc0.044)]
-// CHECK:STDOUT:   %.Self.as_type.loc54_20.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc54_20.1 (constants.%.Self.as_type.4b2)]
-// CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @Y, @Y(%OuterParam) [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness.369)]
-// CHECK:STDOUT:   %impl.elem0.loc54_20.1: type = impl_witness_access %Y.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc54_20.1 (constants.%impl.elem0.409)]
-// CHECK:STDOUT:   %Y_where.type: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.loc54_20.1 = constants.%empty_tuple.type> [symbolic = %Y_where.type (constants.%Y_where.type.324)]
-// CHECK:STDOUT:   %H.loc54_8.1: @Outer.G.%Y_where.type (%Y_where.type.324) = bind_symbolic_name H, 1 [symbolic = %H.loc54_8.1 (constants.%H)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Y_where.type [symbolic = %pattern_type (constants.%pattern_type.f71)]
+// CHECK:STDOUT:   %.Self.as_type.loc54_20.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc54_20.1 (constants.%.Self.as_type.3ad)]
+// CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @Y, @Y(%OuterParam) [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness.617)]
+// CHECK:STDOUT:   %impl.elem0.loc54_20.1: type = impl_witness_access %Y.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc54_20.1 (constants.%impl.elem0.a39)]
+// CHECK:STDOUT:   %Y_where.type: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.loc54_20.1 = constants.%empty_tuple.type> [symbolic = %Y_where.type (constants.%Y_where.type.194)]
+// CHECK:STDOUT:   %H.loc54_8.1: @Outer.G.%Y_where.type (%Y_where.type.194) = bind_symbolic_name H, 1 [symbolic = %H.loc54_8.1 (constants.%H)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Y_where.type [symbolic = %pattern_type (constants.%pattern_type.e35)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -359,8 +359,8 @@ fn F() {
 // CHECK:STDOUT:   %.loc61_12: %Outer.G.type.96c = specific_constant @Outer.%Outer.G.decl, @Outer(constants.%empty_tuple.type) [concrete = constants.%Outer.G.510]
 // CHECK:STDOUT:   %G.ref: %Outer.G.type.96c = name_ref G, %.loc61_12 [concrete = constants.%Outer.G.510]
 // CHECK:STDOUT:   %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:   %facet_value: %Y_where.type.8eb = facet_value constants.%C, (constants.%Y.impl_witness) [concrete = constants.%facet_value]
-// CHECK:STDOUT:   %.loc61_16: %Y_where.type.8eb = converted constants.%C, %facet_value [concrete = constants.%facet_value]
+// CHECK:STDOUT:   %facet_value: %Y_where.type.040 = facet_value constants.%C, (constants.%Y.impl_witness) [concrete = constants.%facet_value]
+// CHECK:STDOUT:   %.loc61_16: %Y_where.type.040 = converted constants.%C, %facet_value [concrete = constants.%facet_value]
 // CHECK:STDOUT:   %Outer.G.specific_fn: <specific function> = specific_function %G.ref, @Outer.G(constants.%empty_tuple.type, constants.%facet_value) [concrete = constants.%Outer.G.specific_fn]
 // CHECK:STDOUT:   %Outer.G.call: init %empty_tuple.type = call %Outer.G.specific_fn()
 // CHECK:STDOUT:   return
@@ -370,7 +370,7 @@ fn F() {
 // CHECK:STDOUT:   %OuterParam.loc49_13.1 => constants.%OuterParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.49b
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.269
 // CHECK:STDOUT:   %Outer.G.type => constants.%Outer.G.type.d49
 // CHECK:STDOUT:   %Outer.G => constants.%Outer.G.f3c
 // CHECK:STDOUT: }
@@ -378,29 +378,29 @@ fn F() {
 // CHECK:STDOUT: specific @Y(constants.%OuterParam) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.49b
-// CHECK:STDOUT:   %Self.2 => constants.%Self.fa7
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.269
+// CHECK:STDOUT:   %Self.2 => constants.%Self.86f
 // CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.56e
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.044
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Self.fa7) {}
+// CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Self.86f) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Y.facet.1b9) {}
+// CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Y.facet.ddc) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.G(constants.%OuterParam, constants.%H) {
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.49b
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.c19
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.269
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.2d2
 // CHECK:STDOUT:   %require_complete => constants.%require_complete
 // CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.56e
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.044
-// CHECK:STDOUT:   %.Self.as_type.loc54_20.1 => constants.%.Self.as_type.4b2
-// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.369
-// CHECK:STDOUT:   %impl.elem0.loc54_20.1 => constants.%impl.elem0.409
-// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.324
+// CHECK:STDOUT:   %.Self.as_type.loc54_20.1 => constants.%.Self.as_type.3ad
+// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.617
+// CHECK:STDOUT:   %impl.elem0.loc54_20.1 => constants.%impl.elem0.a39
+// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.194
 // CHECK:STDOUT:   %H.loc54_8.1 => constants.%H
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f71
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e35
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%OuterParam) {
@@ -420,7 +420,7 @@ fn F() {
 // CHECK:STDOUT:   %OuterParam.loc49_13.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.080
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.400
 // CHECK:STDOUT:   %Outer.G.type => constants.%Outer.G.type.96c
 // CHECK:STDOUT:   %Outer.G => constants.%Outer.G.510
 // CHECK:STDOUT: }
@@ -428,27 +428,27 @@ fn F() {
 // CHECK:STDOUT: specific @Y(constants.%empty_tuple.type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %OuterParam => constants.%empty_tuple.type
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.080
-// CHECK:STDOUT:   %Self.2 => constants.%Self.3a4
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.400
+// CHECK:STDOUT:   %Self.2 => constants.%Self.6da
 // CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.06e
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.0a6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%empty_tuple.type, constants.%Y.facet.1bc) {}
+// CHECK:STDOUT: specific @T(constants.%empty_tuple.type, constants.%Y.facet.359) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.G(constants.%empty_tuple.type, constants.%facet_value) {
 // CHECK:STDOUT:   %OuterParam => constants.%empty_tuple.type
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.080
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.37b
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.12f
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.400
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.0c5
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.29b
 // CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.06e
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.0a6
-// CHECK:STDOUT:   %.Self.as_type.loc54_20.1 => constants.%.Self.as_type.03a
-// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.218
-// CHECK:STDOUT:   %impl.elem0.loc54_20.1 => constants.%impl.elem0.a8c
-// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.8eb
+// CHECK:STDOUT:   %.Self.as_type.loc54_20.1 => constants.%.Self.as_type.4c1
+// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.306
+// CHECK:STDOUT:   %impl.elem0.loc54_20.1 => constants.%impl.elem0.bb2
+// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.040
 // CHECK:STDOUT:   %H.loc54_8.1 => constants.%facet_value
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ce4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b38
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
@@ -457,39 +457,39 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Z1.type: type = facet_type <@Z1> [concrete]
-// CHECK:STDOUT:   %Self.875: %Z1.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.7fa: %Z1.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Z2.type: type = facet_type <@Z2> [concrete]
-// CHECK:STDOUT:   %Self.14e: %Z2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.c6e: %Z2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %OuterParam: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.79b: type = pattern_type %Z1.type [concrete]
+// CHECK:STDOUT:   %pattern_type.39c: type = pattern_type %Z1.type [concrete]
 // CHECK:STDOUT:   %Outer.type: type = generic_class_type @Outer [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Outer.generic: %Outer.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Outer.fea: type = class_type @Outer, @Outer(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %Y.type.5e4: type = facet_type <@Y, @Y(%OuterParam)> [symbolic]
-// CHECK:STDOUT:   %Self.048: %Y.type.5e4 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Y.assoc_type.2a6: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %assoc0.603: %Y.assoc_type.2a6 = assoc_entity element0, @Y.%T [symbolic]
-// CHECK:STDOUT:   %.Self.99e: %Y.type.5e4 = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %require_complete.d37: <witness> = require_complete_type %Y.type.5e4 [symbolic]
-// CHECK:STDOUT:   %.Self.as_type.3b9: type = facet_access_type %.Self.99e [symbolic]
-// CHECK:STDOUT:   %Y.lookup_impl_witness.c65: <witness> = lookup_impl_witness %.Self.99e, @Y, @Y(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %Y.facet: %Y.type.5e4 = facet_value %.Self.as_type.3b9, (%Y.lookup_impl_witness.c65) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.23d: type = impl_witness_access %Y.lookup_impl_witness.c65, element0 [symbolic]
-// CHECK:STDOUT:   %Y_where.type.fee: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.23d = %empty_tuple.type> [symbolic]
-// CHECK:STDOUT:   %H: %Y_where.type.fee = bind_symbolic_name H, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b86: type = pattern_type %Y_where.type.fee [symbolic]
-// CHECK:STDOUT:   %Outer.G.type.854: type = fn_type @Outer.G, @Outer(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %Outer.G.e2b: %Outer.G.type.854 = struct_value () [symbolic]
-// CHECK:STDOUT:   %C.4b0: type = class_type @C, @C(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %require_complete.1fd: <witness> = require_complete_type %Y_where.type.fee [symbolic]
-// CHECK:STDOUT:   %Y.impl_witness.f45: <witness> = impl_witness @Outer.%Y.impl_witness_table, @C.as.Y.impl(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %Outer.a5c: type = class_type @Outer, @Outer(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %Y.type.b38: type = facet_type <@Y, @Y(%OuterParam)> [symbolic]
+// CHECK:STDOUT:   %Self.957: %Y.type.b38 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Y.assoc_type.b7a: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %assoc0.9f8: %Y.assoc_type.b7a = assoc_entity element0, @Y.%T [symbolic]
+// CHECK:STDOUT:   %.Self.de8: %Y.type.b38 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %require_complete.527: <witness> = require_complete_type %Y.type.b38 [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.fbc: type = facet_access_type %.Self.de8 [symbolic]
+// CHECK:STDOUT:   %Y.lookup_impl_witness.787: <witness> = lookup_impl_witness %.Self.de8, @Y, @Y(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %Y.facet: %Y.type.b38 = facet_value %.Self.as_type.fbc, (%Y.lookup_impl_witness.787) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.b76: type = impl_witness_access %Y.lookup_impl_witness.787, element0 [symbolic]
+// CHECK:STDOUT:   %Y_where.type.1f2: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.b76 = %empty_tuple.type> [symbolic]
+// CHECK:STDOUT:   %H: %Y_where.type.1f2 = bind_symbolic_name H, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.23c: type = pattern_type %Y_where.type.1f2 [symbolic]
+// CHECK:STDOUT:   %Outer.G.type.cfe: type = fn_type @Outer.G, @Outer(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %Outer.G.824: %Outer.G.type.cfe = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.660: type = class_type @C, @C(%OuterParam) [symbolic]
+// CHECK:STDOUT:   %require_complete.dc1: <witness> = require_complete_type %Y_where.type.1f2 [symbolic]
+// CHECK:STDOUT:   %Y.impl_witness.1ea: <witness> = impl_witness @Outer.%Y.impl_witness_table, @C.as.Y.impl(%OuterParam) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%OuterParam) [symbolic]
-// CHECK:STDOUT:   %ptr.00b: type = ptr_type %Outer.fea [symbolic]
-// CHECK:STDOUT:   %pattern_type.f97: type = pattern_type %ptr.00b [symbolic]
+// CHECK:STDOUT:   %ptr.580: type = ptr_type %Outer.a5c [symbolic]
+// CHECK:STDOUT:   %pattern_type.eb9: type = pattern_type %ptr.580 [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op.type: type = fn_type @Outer.as.Destroy.impl.Op, @Outer.as.Destroy.impl(%OuterParam) [symbolic]
 // CHECK:STDOUT:   %Outer.as.Destroy.impl.Op: %Outer.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
@@ -500,36 +500,36 @@ fn F() {
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %Z1.type, %type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %facet_type: type = facet_type <@Z1 & @Z2> [concrete]
-// CHECK:STDOUT:   %facet_value.74b: %facet_type = facet_value %empty_tuple.type, (%Z1.impl_witness, %Z2.impl_witness) [concrete]
+// CHECK:STDOUT:   %facet_value.f10: %facet_type = facet_value %empty_tuple.type, (%Z1.impl_witness, %Z2.impl_witness) [concrete]
 // CHECK:STDOUT:   %Z1.facet: %Z1.type = facet_value %empty_tuple.type, (%Z1.impl_witness) [concrete]
-// CHECK:STDOUT:   %Outer.aff: type = class_type @Outer, @Outer(%Z1.facet) [concrete]
-// CHECK:STDOUT:   %Y.type.927: type = facet_type <@Y, @Y(%Z1.facet)> [concrete]
-// CHECK:STDOUT:   %Outer.G.type.663: type = fn_type @Outer.G, @Outer(%Z1.facet) [concrete]
-// CHECK:STDOUT:   %Outer.G.ba4: %Outer.G.type.663 = struct_value () [concrete]
-// CHECK:STDOUT:   %C.e73: type = class_type @C, @C(%Z1.facet) [concrete]
-// CHECK:STDOUT:   %.Self.3de: %Y.type.927 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Y.lookup_impl_witness.a49: <witness> = lookup_impl_witness %.Self.3de, @Y, @Y(%Z1.facet) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.8ce: type = impl_witness_access %Y.lookup_impl_witness.a49, element0 [symbolic_self]
-// CHECK:STDOUT:   %Y_where.type.6af: type = facet_type <@Y, @Y(%Z1.facet) where %impl.elem0.8ce = %empty_tuple.type> [concrete]
-// CHECK:STDOUT:   %Self.bdf: %Y.type.927 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Y.assoc_type.93b: type = assoc_entity_type @Y, @Y(%Z1.facet) [concrete]
-// CHECK:STDOUT:   %assoc0.aa8: %Y.assoc_type.93b = assoc_entity element0, @Y.%T [concrete]
-// CHECK:STDOUT:   %complete_type.066: <witness> = complete_type_witness %Y.type.927 [concrete]
-// CHECK:STDOUT:   %.Self.as_type.7ce: type = facet_access_type %.Self.3de [symbolic_self]
-// CHECK:STDOUT:   %complete_type.997: <witness> = complete_type_witness %Y_where.type.6af [concrete]
-// CHECK:STDOUT:   %Y.impl_witness.997: <witness> = impl_witness @Outer.%Y.impl_witness_table, @C.as.Y.impl(%Z1.facet) [concrete]
-// CHECK:STDOUT:   %facet_value.ed1: %Y_where.type.6af = facet_value %C.e73, (%Y.impl_witness.997) [concrete]
-// CHECK:STDOUT:   %pattern_type.b1a: type = pattern_type %Y_where.type.6af [concrete]
-// CHECK:STDOUT:   %Outer.G.specific_fn: <specific function> = specific_function %Outer.G.ba4, @Outer.G(%Z1.facet, %facet_value.ed1) [concrete]
+// CHECK:STDOUT:   %Outer.406: type = class_type @Outer, @Outer(%Z1.facet) [concrete]
+// CHECK:STDOUT:   %Y.type.f82: type = facet_type <@Y, @Y(%Z1.facet)> [concrete]
+// CHECK:STDOUT:   %Outer.G.type.8c8: type = fn_type @Outer.G, @Outer(%Z1.facet) [concrete]
+// CHECK:STDOUT:   %Outer.G.bc6: %Outer.G.type.8c8 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.b85: type = class_type @C, @C(%Z1.facet) [concrete]
+// CHECK:STDOUT:   %.Self.c9d: %Y.type.f82 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Y.lookup_impl_witness.fbf: <witness> = lookup_impl_witness %.Self.c9d, @Y, @Y(%Z1.facet) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.406: type = impl_witness_access %Y.lookup_impl_witness.fbf, element0 [symbolic_self]
+// CHECK:STDOUT:   %Y_where.type.f47: type = facet_type <@Y, @Y(%Z1.facet) where %impl.elem0.406 = %empty_tuple.type> [concrete]
+// CHECK:STDOUT:   %Self.7e3: %Y.type.f82 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Y.assoc_type.de4: type = assoc_entity_type @Y, @Y(%Z1.facet) [concrete]
+// CHECK:STDOUT:   %assoc0.0ca: %Y.assoc_type.de4 = assoc_entity element0, @Y.%T [concrete]
+// CHECK:STDOUT:   %complete_type.c57: <witness> = complete_type_witness %Y.type.f82 [concrete]
+// CHECK:STDOUT:   %.Self.as_type.09c: type = facet_access_type %.Self.c9d [symbolic_self]
+// CHECK:STDOUT:   %complete_type.b7b: <witness> = complete_type_witness %Y_where.type.f47 [concrete]
+// CHECK:STDOUT:   %Y.impl_witness.2d3: <witness> = impl_witness @Outer.%Y.impl_witness_table, @C.as.Y.impl(%Z1.facet) [concrete]
+// CHECK:STDOUT:   %facet_value.9bc: %Y_where.type.f47 = facet_value %C.b85, (%Y.impl_witness.2d3) [concrete]
+// CHECK:STDOUT:   %pattern_type.0c9: type = pattern_type %Y_where.type.f47 [concrete]
+// CHECK:STDOUT:   %Outer.G.specific_fn: <specific function> = specific_function %Outer.G.bc6, @Outer.G(%Z1.facet, %facet_value.9bc) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -541,8 +541,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -557,7 +557,7 @@ fn F() {
 // CHECK:STDOUT:   %Z1.decl: type = interface_decl @Z1 [concrete = constants.%Z1.type] {} {}
 // CHECK:STDOUT:   %Z2.decl: type = interface_decl @Z2 [concrete = constants.%Z2.type] {} {}
 // CHECK:STDOUT:   %Outer.decl: %Outer.type = class_decl @Outer [concrete = constants.%Outer.generic] {
-// CHECK:STDOUT:     %OuterParam.patt: %pattern_type.79b = symbolic_binding_pattern OuterParam, 0 [concrete]
+// CHECK:STDOUT:     %OuterParam.patt: %pattern_type.39c = symbolic_binding_pattern OuterParam, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc6: type = splice_block %Z1.ref [concrete = constants.%Z1.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
@@ -583,7 +583,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z1 {
-// CHECK:STDOUT:   %Self: %Z1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.875]
+// CHECK:STDOUT:   %Self: %Z1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.7fa]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -591,7 +591,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z2 {
-// CHECK:STDOUT:   %Self: %Z2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.14e]
+// CHECK:STDOUT:   %Self: %Z2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.c6e]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -601,15 +601,15 @@ fn F() {
 // CHECK:STDOUT: generic interface @Y(@Outer.%OuterParam.loc6_13.2: %Z1.type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %OuterParam: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:   %Self.2: @Y.%Y.type (%Y.type.5e4) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.048)]
-// CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.2a6)]
-// CHECK:STDOUT:   %assoc0: @Y.%Y.assoc_type (%Y.assoc_type.2a6) = assoc_entity element0, %T [symbolic = %assoc0 (constants.%assoc0.603)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:   %Self.2: @Y.%Y.type (%Y.type.b38) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.957)]
+// CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.b7a)]
+// CHECK:STDOUT:   %assoc0: @Y.%Y.assoc_type (%Y.assoc_type.b7a) = assoc_entity element0, %T [symbolic = %assoc0 (constants.%assoc0.9f8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Y.%Y.type (%Y.type.5e4) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.048)]
+// CHECK:STDOUT:     %Self.1: @Y.%Y.type (%Y.type.b38) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.957)]
 // CHECK:STDOUT:     %T: type = assoc_const_decl @T [concrete] {
-// CHECK:STDOUT:       %assoc0: @Y.%Y.assoc_type (%Y.assoc_type.2a6) = assoc_entity element0, @Y.%T [symbolic = @Y.%assoc0 (constants.%assoc0.603)]
+// CHECK:STDOUT:       %assoc0: @Y.%Y.assoc_type (%Y.assoc_type.b7a) = assoc_entity element0, @Y.%T [symbolic = @Y.%assoc0 (constants.%assoc0.9f8)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -619,24 +619,24 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @T(@Outer.%OuterParam.loc6_13.2: %Z1.type, @Y.%Self.1: @Y.%Y.type (%Y.type.5e4)) {
+// CHECK:STDOUT: generic assoc_const @T(@Outer.%OuterParam.loc6_13.2: %Z1.type, @Y.%Self.1: @Y.%Y.type (%Y.type.b38)) {
 // CHECK:STDOUT:   assoc_const T:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.Y.impl(@Outer.%OuterParam.loc6_13.2: %Z1.type) {
 // CHECK:STDOUT:   %OuterParam: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%OuterParam) [symbolic = %C (constants.%C.4b0)]
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:   %.Self.2: @C.as.Y.impl.%Y.type (%Y.type.5e4) = bind_symbolic_name .Self [symbolic = %.Self.2 (constants.%.Self.99e)]
-// CHECK:STDOUT:   %require_complete.loc14_21: <witness> = require_complete_type %Y.type [symbolic = %require_complete.loc14_21 (constants.%require_complete.d37)]
-// CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.2a6)]
-// CHECK:STDOUT:   %assoc0: @C.as.Y.impl.%Y.assoc_type (%Y.assoc_type.2a6) = assoc_entity element0, @Y.%T [symbolic = %assoc0 (constants.%assoc0.603)]
-// CHECK:STDOUT:   %.Self.as_type.loc14_21.2: type = facet_access_type %.Self.2 [symbolic = %.Self.as_type.loc14_21.2 (constants.%.Self.as_type.3b9)]
-// CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.2, @Y, @Y(%OuterParam) [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness.c65)]
-// CHECK:STDOUT:   %impl.elem0.loc14_21.2: type = impl_witness_access %Y.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_21.2 (constants.%impl.elem0.23d)]
-// CHECK:STDOUT:   %Y_where.type: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.loc14_21.2 = constants.%empty_tuple.type> [symbolic = %Y_where.type (constants.%Y_where.type.fee)]
-// CHECK:STDOUT:   %require_complete.loc14_15: <witness> = require_complete_type %Y_where.type [symbolic = %require_complete.loc14_15 (constants.%require_complete.1fd)]
-// CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness @Outer.%Y.impl_witness_table, @C.as.Y.impl(%OuterParam) [symbolic = %Y.impl_witness (constants.%Y.impl_witness.f45)]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%OuterParam) [symbolic = %C (constants.%C.660)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:   %.Self.2: @C.as.Y.impl.%Y.type (%Y.type.b38) = bind_symbolic_name .Self [symbolic = %.Self.2 (constants.%.Self.de8)]
+// CHECK:STDOUT:   %require_complete.loc14_21: <witness> = require_complete_type %Y.type [symbolic = %require_complete.loc14_21 (constants.%require_complete.527)]
+// CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.b7a)]
+// CHECK:STDOUT:   %assoc0: @C.as.Y.impl.%Y.assoc_type (%Y.assoc_type.b7a) = assoc_entity element0, @Y.%T [symbolic = %assoc0 (constants.%assoc0.9f8)]
+// CHECK:STDOUT:   %.Self.as_type.loc14_21.2: type = facet_access_type %.Self.2 [symbolic = %.Self.as_type.loc14_21.2 (constants.%.Self.as_type.fbc)]
+// CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.2, @Y, @Y(%OuterParam) [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness.787)]
+// CHECK:STDOUT:   %impl.elem0.loc14_21.2: type = impl_witness_access %Y.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_21.2 (constants.%impl.elem0.b76)]
+// CHECK:STDOUT:   %Y_where.type: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.loc14_21.2 = constants.%empty_tuple.type> [symbolic = %Y_where.type (constants.%Y_where.type.1f2)]
+// CHECK:STDOUT:   %require_complete.loc14_15: <witness> = require_complete_type %Y_where.type [symbolic = %require_complete.loc14_15 (constants.%require_complete.dc1)]
+// CHECK:STDOUT:   %Y.impl_witness: <witness> = impl_witness @Outer.%Y.impl_witness_table, @C.as.Y.impl(%OuterParam) [symbolic = %Y.impl_witness (constants.%Y.impl_witness.1ea)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -648,7 +648,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @Outer.as.Destroy.impl(@Outer.%OuterParam.loc6_13.2: %Z1.type) {
 // CHECK:STDOUT:   %OuterParam: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%OuterParam) [symbolic = %Outer (constants.%Outer.fea)]
+// CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%OuterParam) [symbolic = %Outer (constants.%Outer.a5c)]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @Outer.%Destroy.impl_witness_table, @Outer.as.Destroy.impl(%OuterParam) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
@@ -657,16 +657,16 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @Outer.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %Outer.as.Destroy.impl.Op.decl: @Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.type (%Outer.as.Destroy.impl.Op.type) = fn_decl @Outer.as.Destroy.impl.Op [symbolic = @Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op (constants.%Outer.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @Outer.as.Destroy.impl.Op.%pattern_type (%pattern_type.f97) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @Outer.as.Destroy.impl.Op.%pattern_type (%pattern_type.f97) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @Outer.as.Destroy.impl.Op.%pattern_type (%pattern_type.eb9) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @Outer.as.Destroy.impl.Op.%pattern_type (%pattern_type.eb9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc6_30.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @Outer.as.Destroy.impl.Op.%ptr (%ptr.00b) = value_param call_param0
-// CHECK:STDOUT:       %.loc6_30.2: type = splice_block %Self.ref [symbolic = %Outer (constants.%Outer.fea)] {
-// CHECK:STDOUT:         %.loc6_30.3: type = specific_constant constants.%Outer.fea, @Outer(constants.%OuterParam) [symbolic = %Outer (constants.%Outer.fea)]
-// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc6_30.3 [symbolic = %Outer (constants.%Outer.fea)]
+// CHECK:STDOUT:       %self.param: @Outer.as.Destroy.impl.Op.%ptr (%ptr.580) = value_param call_param0
+// CHECK:STDOUT:       %.loc6_30.2: type = splice_block %Self.ref [symbolic = %Outer (constants.%Outer.a5c)] {
+// CHECK:STDOUT:         %.loc6_30.3: type = specific_constant constants.%Outer.a5c, @Outer(constants.%OuterParam) [symbolic = %Outer (constants.%Outer.a5c)]
+// CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc6_30.3 [symbolic = %Outer (constants.%Outer.a5c)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @Outer.as.Destroy.impl.Op.%ptr (%ptr.00b) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @Outer.as.Destroy.impl.Op.%ptr (%ptr.580) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -689,60 +689,60 @@ fn F() {
 // CHECK:STDOUT:   %OuterParam.loc6_13.1: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam.loc6_13.1 (constants.%OuterParam)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam.loc6_13.1)> [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:   %Outer.G.type: type = fn_type @Outer.G, @Outer(%OuterParam.loc6_13.1) [symbolic = %Outer.G.type (constants.%Outer.G.type.854)]
-// CHECK:STDOUT:   %Outer.G: @Outer.%Outer.G.type (%Outer.G.type.854) = struct_value () [symbolic = %Outer.G (constants.%Outer.G.e2b)]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%OuterParam.loc6_13.1) [symbolic = %C (constants.%C.4b0)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam.loc6_13.1)> [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:   %Outer.G.type: type = fn_type @Outer.G, @Outer(%OuterParam.loc6_13.1) [symbolic = %Outer.G.type (constants.%Outer.G.type.cfe)]
+// CHECK:STDOUT:   %Outer.G: @Outer.%Outer.G.type (%Outer.G.type.cfe) = struct_value () [symbolic = %Outer.G (constants.%Outer.G.824)]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%OuterParam.loc6_13.1) [symbolic = %C (constants.%C.660)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %Y.decl: type = interface_decl @Y [symbolic = @Outer.%Y.type (constants.%Y.type.5e4)] {} {}
-// CHECK:STDOUT:     %Outer.G.decl: @Outer.%Outer.G.type (%Outer.G.type.854) = fn_decl @Outer.G [symbolic = @Outer.%Outer.G (constants.%Outer.G.e2b)] {
-// CHECK:STDOUT:       %H.patt: @Outer.G.%pattern_type (%pattern_type.b86) = symbolic_binding_pattern H, 1 [concrete]
+// CHECK:STDOUT:     %Y.decl: type = interface_decl @Y [symbolic = @Outer.%Y.type (constants.%Y.type.b38)] {} {}
+// CHECK:STDOUT:     %Outer.G.decl: @Outer.%Outer.G.type (%Outer.G.type.cfe) = fn_decl @Outer.G [symbolic = @Outer.%Outer.G (constants.%Outer.G.824)] {
+// CHECK:STDOUT:       %H.patt: @Outer.G.%pattern_type (%pattern_type.23c) = symbolic_binding_pattern H, 1 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %.loc11_14.1: type = splice_block %.loc11_14.2 [symbolic = %Y_where.type (constants.%Y_where.type.fee)] {
+// CHECK:STDOUT:       %.loc11_14.1: type = splice_block %.loc11_14.2 [symbolic = %Y_where.type (constants.%Y_where.type.1f2)] {
 // CHECK:STDOUT:         %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
-// CHECK:STDOUT:         %.loc11_12: type = specific_constant @Outer.%Y.decl, @Outer(constants.%OuterParam) [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:         %Y.ref: type = name_ref Y, %.loc11_12 [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:         %.Self.3: @Outer.G.%Y.type (%Y.type.5e4) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.99e)]
-// CHECK:STDOUT:         %.Self.ref: @Outer.G.%Y.type (%Y.type.5e4) = name_ref .Self, %.Self.3 [symbolic = %.Self.1 (constants.%.Self.99e)]
-// CHECK:STDOUT:         %.loc11_20.1: @Outer.G.%Y.assoc_type (%Y.assoc_type.2a6) = specific_constant @T.%assoc0, @Y(constants.%OuterParam) [symbolic = %assoc0 (constants.%assoc0.603)]
-// CHECK:STDOUT:         %T.ref: @Outer.G.%Y.assoc_type (%Y.assoc_type.2a6) = name_ref T, %.loc11_20.1 [symbolic = %assoc0 (constants.%assoc0.603)]
-// CHECK:STDOUT:         %.Self.as_type.loc11_20.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc11_20.1 (constants.%.Self.as_type.3b9)]
-// CHECK:STDOUT:         %.loc11_20.2: type = converted %.Self.ref, %.Self.as_type.loc11_20.2 [symbolic = %.Self.as_type.loc11_20.1 (constants.%.Self.as_type.3b9)]
-// CHECK:STDOUT:         %impl.elem0.loc11_20.2: type = impl_witness_access constants.%Y.lookup_impl_witness.c65, element0 [symbolic = %impl.elem0.loc11_20.1 (constants.%impl.elem0.23d)]
+// CHECK:STDOUT:         %.loc11_12: type = specific_constant @Outer.%Y.decl, @Outer(constants.%OuterParam) [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:         %Y.ref: type = name_ref Y, %.loc11_12 [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:         %.Self.3: @Outer.G.%Y.type (%Y.type.b38) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.de8)]
+// CHECK:STDOUT:         %.Self.ref: @Outer.G.%Y.type (%Y.type.b38) = name_ref .Self, %.Self.3 [symbolic = %.Self.1 (constants.%.Self.de8)]
+// CHECK:STDOUT:         %.loc11_20.1: @Outer.G.%Y.assoc_type (%Y.assoc_type.b7a) = specific_constant @T.%assoc0, @Y(constants.%OuterParam) [symbolic = %assoc0 (constants.%assoc0.9f8)]
+// CHECK:STDOUT:         %T.ref: @Outer.G.%Y.assoc_type (%Y.assoc_type.b7a) = name_ref T, %.loc11_20.1 [symbolic = %assoc0 (constants.%assoc0.9f8)]
+// CHECK:STDOUT:         %.Self.as_type.loc11_20.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc11_20.1 (constants.%.Self.as_type.fbc)]
+// CHECK:STDOUT:         %.loc11_20.2: type = converted %.Self.ref, %.Self.as_type.loc11_20.2 [symbolic = %.Self.as_type.loc11_20.1 (constants.%.Self.as_type.fbc)]
+// CHECK:STDOUT:         %impl.elem0.loc11_20.2: type = impl_witness_access constants.%Y.lookup_impl_witness.787, element0 [symbolic = %impl.elem0.loc11_20.1 (constants.%impl.elem0.b76)]
 // CHECK:STDOUT:         %.loc11_26.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:         %.loc11_26.2: type = converted %.loc11_26.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:         %.loc11_14.2: type = where_expr %.Self.3 [symbolic = %Y_where.type (constants.%Y_where.type.fee)] {
-// CHECK:STDOUT:           requirement_base_facet_type constants.%Y.type.5e4
+// CHECK:STDOUT:         %.loc11_14.2: type = where_expr %.Self.3 [symbolic = %Y_where.type (constants.%Y_where.type.1f2)] {
+// CHECK:STDOUT:           requirement_base_facet_type constants.%Y.type.b38
 // CHECK:STDOUT:           requirement_rewrite %impl.elem0.loc11_20.2, %.loc11_26.2
 // CHECK:STDOUT:         }
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %H.loc11_8.2: @Outer.G.%Y_where.type (%Y_where.type.fee) = bind_symbolic_name H, 1 [symbolic = %H.loc11_8.1 (constants.%H)]
+// CHECK:STDOUT:       %H.loc11_8.2: @Outer.G.%Y_where.type (%Y_where.type.1f2) = bind_symbolic_name H, 1 [symbolic = %H.loc11_8.1 (constants.%H)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %C.decl: type = class_decl @C [symbolic = @Outer.%C (constants.%C.4b0)] {} {}
+// CHECK:STDOUT:     %C.decl: type = class_decl @C [symbolic = @Outer.%C (constants.%C.660)] {} {}
 // CHECK:STDOUT:     impl_decl @C.as.Y.impl [concrete] {} {
-// CHECK:STDOUT:       %.loc14_8: type = specific_constant @Outer.%C.decl, @Outer(constants.%OuterParam) [symbolic = %C (constants.%C.4b0)]
-// CHECK:STDOUT:       %C.ref: type = name_ref C, %.loc14_8 [symbolic = %C (constants.%C.4b0)]
-// CHECK:STDOUT:       %.loc14_13: type = specific_constant @Outer.%Y.decl, @Outer(constants.%OuterParam) [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:       %Y.ref: type = name_ref Y, %.loc14_13 [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:       %.Self.1: @C.as.Y.impl.%Y.type (%Y.type.5e4) = bind_symbolic_name .Self [symbolic = %.Self.2 (constants.%.Self.99e)]
-// CHECK:STDOUT:       %.Self.ref: @C.as.Y.impl.%Y.type (%Y.type.5e4) = name_ref .Self, %.Self.1 [symbolic = %.Self.2 (constants.%.Self.99e)]
-// CHECK:STDOUT:       %.loc14_21.1: @C.as.Y.impl.%Y.assoc_type (%Y.assoc_type.2a6) = specific_constant @T.%assoc0, @Y(constants.%OuterParam) [symbolic = %assoc0 (constants.%assoc0.603)]
-// CHECK:STDOUT:       %T.ref: @C.as.Y.impl.%Y.assoc_type (%Y.assoc_type.2a6) = name_ref T, %.loc14_21.1 [symbolic = %assoc0 (constants.%assoc0.603)]
-// CHECK:STDOUT:       %.Self.as_type.loc14_21.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc14_21.2 (constants.%.Self.as_type.3b9)]
-// CHECK:STDOUT:       %.loc14_21.2: type = converted %.Self.ref, %.Self.as_type.loc14_21.1 [symbolic = %.Self.as_type.loc14_21.2 (constants.%.Self.as_type.3b9)]
-// CHECK:STDOUT:       %impl.elem0.loc14_21.1: type = impl_witness_access constants.%Y.lookup_impl_witness.c65, element0 [symbolic = %impl.elem0.loc14_21.2 (constants.%impl.elem0.23d)]
+// CHECK:STDOUT:       %.loc14_8: type = specific_constant @Outer.%C.decl, @Outer(constants.%OuterParam) [symbolic = %C (constants.%C.660)]
+// CHECK:STDOUT:       %C.ref: type = name_ref C, %.loc14_8 [symbolic = %C (constants.%C.660)]
+// CHECK:STDOUT:       %.loc14_13: type = specific_constant @Outer.%Y.decl, @Outer(constants.%OuterParam) [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:       %Y.ref: type = name_ref Y, %.loc14_13 [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:       %.Self.1: @C.as.Y.impl.%Y.type (%Y.type.b38) = bind_symbolic_name .Self [symbolic = %.Self.2 (constants.%.Self.de8)]
+// CHECK:STDOUT:       %.Self.ref: @C.as.Y.impl.%Y.type (%Y.type.b38) = name_ref .Self, %.Self.1 [symbolic = %.Self.2 (constants.%.Self.de8)]
+// CHECK:STDOUT:       %.loc14_21.1: @C.as.Y.impl.%Y.assoc_type (%Y.assoc_type.b7a) = specific_constant @T.%assoc0, @Y(constants.%OuterParam) [symbolic = %assoc0 (constants.%assoc0.9f8)]
+// CHECK:STDOUT:       %T.ref: @C.as.Y.impl.%Y.assoc_type (%Y.assoc_type.b7a) = name_ref T, %.loc14_21.1 [symbolic = %assoc0 (constants.%assoc0.9f8)]
+// CHECK:STDOUT:       %.Self.as_type.loc14_21.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc14_21.2 (constants.%.Self.as_type.fbc)]
+// CHECK:STDOUT:       %.loc14_21.2: type = converted %.Self.ref, %.Self.as_type.loc14_21.1 [symbolic = %.Self.as_type.loc14_21.2 (constants.%.Self.as_type.fbc)]
+// CHECK:STDOUT:       %impl.elem0.loc14_21.1: type = impl_witness_access constants.%Y.lookup_impl_witness.787, element0 [symbolic = %impl.elem0.loc14_21.2 (constants.%impl.elem0.b76)]
 // CHECK:STDOUT:       %.loc14_27.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc14_27.2: type = converted %.loc14_27.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %.loc14_15: type = where_expr %.Self.1 [symbolic = %Y_where.type (constants.%Y_where.type.fee)] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%Y.type.5e4
+// CHECK:STDOUT:       %.loc14_15: type = where_expr %.Self.1 [symbolic = %Y_where.type (constants.%Y_where.type.1f2)] {
+// CHECK:STDOUT:         requirement_base_facet_type constants.%Y.type.b38
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc14_21.1, %.loc14_27.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %Y.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @C.as.Y.impl [concrete]
-// CHECK:STDOUT:     %Y.impl_witness: <witness> = impl_witness %Y.impl_witness_table, @C.as.Y.impl(constants.%OuterParam) [symbolic = @C.as.Y.impl.%Y.impl_witness (constants.%Y.impl_witness.f45)]
+// CHECK:STDOUT:     %Y.impl_witness: <witness> = impl_witness %Y.impl_witness_table, @C.as.Y.impl(constants.%OuterParam) [symbolic = @C.as.Y.impl.%Y.impl_witness (constants.%Y.impl_witness.1ea)]
 // CHECK:STDOUT:     %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.fea [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.fea)]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Outer.a5c [symbolic = @Outer.as.Destroy.impl.%Outer (constants.%Outer.a5c)]
 // CHECK:STDOUT:     impl_decl @Outer.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@Outer.as.Destroy.impl.%Outer.as.Destroy.impl.Op.decl), @Outer.as.Destroy.impl [concrete]
 // CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @Outer.as.Destroy.impl(constants.%OuterParam) [symbolic = @Outer.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
@@ -750,7 +750,7 @@ fn F() {
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = constants.%Outer.fea
+// CHECK:STDOUT:     .Self = constants.%Outer.a5c
 // CHECK:STDOUT:     .Y = %Y.decl
 // CHECK:STDOUT:     .G = %Outer.G.decl
 // CHECK:STDOUT:     .C = %C.decl
@@ -761,19 +761,19 @@ fn F() {
 // CHECK:STDOUT:   class;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Outer.G(@Outer.%OuterParam.loc6_13.2: %Z1.type, %H.loc11_8.2: @Outer.G.%Y_where.type (%Y_where.type.fee)) {
+// CHECK:STDOUT: generic fn @Outer.G(@Outer.%OuterParam.loc6_13.2: %Z1.type, %H.loc11_8.2: @Outer.G.%Y_where.type (%Y_where.type.1f2)) {
 // CHECK:STDOUT:   %OuterParam: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.5e4)]
-// CHECK:STDOUT:   %.Self.1: @Outer.G.%Y.type (%Y.type.5e4) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.99e)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Y.type [symbolic = %require_complete (constants.%require_complete.d37)]
-// CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.2a6)]
-// CHECK:STDOUT:   %assoc0: @Outer.G.%Y.assoc_type (%Y.assoc_type.2a6) = assoc_entity element0, @Y.%T [symbolic = %assoc0 (constants.%assoc0.603)]
-// CHECK:STDOUT:   %.Self.as_type.loc11_20.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc11_20.1 (constants.%.Self.as_type.3b9)]
-// CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @Y, @Y(%OuterParam) [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness.c65)]
-// CHECK:STDOUT:   %impl.elem0.loc11_20.1: type = impl_witness_access %Y.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_20.1 (constants.%impl.elem0.23d)]
-// CHECK:STDOUT:   %Y_where.type: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.loc11_20.1 = constants.%empty_tuple.type> [symbolic = %Y_where.type (constants.%Y_where.type.fee)]
-// CHECK:STDOUT:   %H.loc11_8.1: @Outer.G.%Y_where.type (%Y_where.type.fee) = bind_symbolic_name H, 1 [symbolic = %H.loc11_8.1 (constants.%H)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Y_where.type [symbolic = %pattern_type (constants.%pattern_type.b86)]
+// CHECK:STDOUT:   %Y.type: type = facet_type <@Y, @Y(%OuterParam)> [symbolic = %Y.type (constants.%Y.type.b38)]
+// CHECK:STDOUT:   %.Self.1: @Outer.G.%Y.type (%Y.type.b38) = bind_symbolic_name .Self [symbolic = %.Self.1 (constants.%.Self.de8)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Y.type [symbolic = %require_complete (constants.%require_complete.527)]
+// CHECK:STDOUT:   %Y.assoc_type: type = assoc_entity_type @Y, @Y(%OuterParam) [symbolic = %Y.assoc_type (constants.%Y.assoc_type.b7a)]
+// CHECK:STDOUT:   %assoc0: @Outer.G.%Y.assoc_type (%Y.assoc_type.b7a) = assoc_entity element0, @Y.%T [symbolic = %assoc0 (constants.%assoc0.9f8)]
+// CHECK:STDOUT:   %.Self.as_type.loc11_20.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc11_20.1 (constants.%.Self.as_type.fbc)]
+// CHECK:STDOUT:   %Y.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @Y, @Y(%OuterParam) [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness.787)]
+// CHECK:STDOUT:   %impl.elem0.loc11_20.1: type = impl_witness_access %Y.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_20.1 (constants.%impl.elem0.b76)]
+// CHECK:STDOUT:   %Y_where.type: type = facet_type <@Y, @Y(%OuterParam) where %impl.elem0.loc11_20.1 = constants.%empty_tuple.type> [symbolic = %Y_where.type (constants.%Y_where.type.1f2)]
+// CHECK:STDOUT:   %H.loc11_8.1: @Outer.G.%Y_where.type (%Y_where.type.1f2) = bind_symbolic_name H, 1 [symbolic = %H.loc11_8.1 (constants.%H)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Y_where.type [symbolic = %pattern_type (constants.%pattern_type.23c)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -785,13 +785,13 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Outer.as.Destroy.impl.Op(@Outer.%OuterParam.loc6_13.2: %Z1.type) {
 // CHECK:STDOUT:   %OuterParam: %Z1.type = bind_symbolic_name OuterParam, 0 [symbolic = %OuterParam (constants.%OuterParam)]
-// CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%OuterParam) [symbolic = %Outer (constants.%Outer.fea)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %Outer [symbolic = %ptr (constants.%ptr.00b)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.f97)]
+// CHECK:STDOUT:   %Outer: type = class_type @Outer, @Outer(%OuterParam) [symbolic = %Outer (constants.%Outer.a5c)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %Outer [symbolic = %ptr (constants.%ptr.580)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.eb9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @Outer.as.Destroy.impl.Op.%ptr (%ptr.00b)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @Outer.as.Destroy.impl.Op.%ptr (%ptr.580)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -800,39 +800,39 @@ fn F() {
 // CHECK:STDOUT:   %.loc21_10: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:   %Z1.ref.loc21_16: type = name_ref Z1, file.%Z1.decl [concrete = constants.%Z1.type]
 // CHECK:STDOUT:   %Z2.ref.loc21_21: type = name_ref Z2, file.%Z2.decl [concrete = constants.%Z2.type]
-// CHECK:STDOUT:   %impl.elem0.loc21_19: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc21_19: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc21_19: <bound method> = bound_method %Z1.ref.loc21_16, %impl.elem0.loc21_19 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc21_19: init type = call %bound_method.loc21_19(%Z1.ref.loc21_16, %Z2.ref.loc21_21) [concrete = constants.%facet_type]
 // CHECK:STDOUT:   %.loc21_23.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc21_19 [concrete = constants.%facet_type]
 // CHECK:STDOUT:   %.loc21_23.2: type = converted %type.as.BitAndWith.impl.Op.call.loc21_19, %.loc21_23.1 [concrete = constants.%facet_type]
-// CHECK:STDOUT:   %facet_value.loc21_12: %facet_type = facet_value constants.%empty_tuple.type, (constants.%Z1.impl_witness, constants.%Z2.impl_witness) [concrete = constants.%facet_value.74b]
-// CHECK:STDOUT:   %.loc21_12: %facet_type = converted %.loc21_10, %facet_value.loc21_12 [concrete = constants.%facet_value.74b]
-// CHECK:STDOUT:   %as_type.loc21_24: type = facet_access_type constants.%facet_value.74b [concrete = constants.%empty_tuple.type]
+// CHECK:STDOUT:   %facet_value.loc21_12: %facet_type = facet_value constants.%empty_tuple.type, (constants.%Z1.impl_witness, constants.%Z2.impl_witness) [concrete = constants.%facet_value.f10]
+// CHECK:STDOUT:   %.loc21_12: %facet_type = converted %.loc21_10, %facet_value.loc21_12 [concrete = constants.%facet_value.f10]
+// CHECK:STDOUT:   %as_type.loc21_24: type = facet_access_type constants.%facet_value.f10 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %Z1.facet.loc21_24: %Z1.type = facet_value %as_type.loc21_24, (constants.%Z1.impl_witness) [concrete = constants.%Z1.facet]
 // CHECK:STDOUT:   %.loc21_24: %Z1.type = converted %.loc21_12, %Z1.facet.loc21_24 [concrete = constants.%Z1.facet]
-// CHECK:STDOUT:   %Outer.loc21_24: type = class_type @Outer, @Outer(constants.%Z1.facet) [concrete = constants.%Outer.aff]
-// CHECK:STDOUT:   %.loc21_25: %Outer.G.type.663 = specific_constant @Outer.%Outer.G.decl, @Outer(constants.%Z1.facet) [concrete = constants.%Outer.G.ba4]
-// CHECK:STDOUT:   %G.ref: %Outer.G.type.663 = name_ref G, %.loc21_25 [concrete = constants.%Outer.G.ba4]
+// CHECK:STDOUT:   %Outer.loc21_24: type = class_type @Outer, @Outer(constants.%Z1.facet) [concrete = constants.%Outer.406]
+// CHECK:STDOUT:   %.loc21_25: %Outer.G.type.8c8 = specific_constant @Outer.%Outer.G.decl, @Outer(constants.%Z1.facet) [concrete = constants.%Outer.G.bc6]
+// CHECK:STDOUT:   %G.ref: %Outer.G.type.8c8 = name_ref G, %.loc21_25 [concrete = constants.%Outer.G.bc6]
 // CHECK:STDOUT:   %Outer.ref.loc21_28: %Outer.type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer.generic]
 // CHECK:STDOUT:   %.loc21_35: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:   %Z1.ref.loc21_41: type = name_ref Z1, file.%Z1.decl [concrete = constants.%Z1.type]
 // CHECK:STDOUT:   %Z2.ref.loc21_46: type = name_ref Z2, file.%Z2.decl [concrete = constants.%Z2.type]
-// CHECK:STDOUT:   %impl.elem0.loc21_44: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc21_44: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc21_44: <bound method> = bound_method %Z1.ref.loc21_41, %impl.elem0.loc21_44 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc21_44: init type = call %bound_method.loc21_44(%Z1.ref.loc21_41, %Z2.ref.loc21_46) [concrete = constants.%facet_type]
 // CHECK:STDOUT:   %.loc21_48.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc21_44 [concrete = constants.%facet_type]
 // CHECK:STDOUT:   %.loc21_48.2: type = converted %type.as.BitAndWith.impl.Op.call.loc21_44, %.loc21_48.1 [concrete = constants.%facet_type]
-// CHECK:STDOUT:   %facet_value.loc21_37: %facet_type = facet_value constants.%empty_tuple.type, (constants.%Z1.impl_witness, constants.%Z2.impl_witness) [concrete = constants.%facet_value.74b]
-// CHECK:STDOUT:   %.loc21_37: %facet_type = converted %.loc21_35, %facet_value.loc21_37 [concrete = constants.%facet_value.74b]
-// CHECK:STDOUT:   %as_type.loc21_49: type = facet_access_type constants.%facet_value.74b [concrete = constants.%empty_tuple.type]
+// CHECK:STDOUT:   %facet_value.loc21_37: %facet_type = facet_value constants.%empty_tuple.type, (constants.%Z1.impl_witness, constants.%Z2.impl_witness) [concrete = constants.%facet_value.f10]
+// CHECK:STDOUT:   %.loc21_37: %facet_type = converted %.loc21_35, %facet_value.loc21_37 [concrete = constants.%facet_value.f10]
+// CHECK:STDOUT:   %as_type.loc21_49: type = facet_access_type constants.%facet_value.f10 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %Z1.facet.loc21_49: %Z1.type = facet_value %as_type.loc21_49, (constants.%Z1.impl_witness) [concrete = constants.%Z1.facet]
 // CHECK:STDOUT:   %.loc21_49: %Z1.type = converted %.loc21_37, %Z1.facet.loc21_49 [concrete = constants.%Z1.facet]
-// CHECK:STDOUT:   %Outer.loc21_49: type = class_type @Outer, @Outer(constants.%Z1.facet) [concrete = constants.%Outer.aff]
-// CHECK:STDOUT:   %.loc21_50: type = specific_constant @Outer.%C.decl, @Outer(constants.%Z1.facet) [concrete = constants.%C.e73]
-// CHECK:STDOUT:   %C.ref: type = name_ref C, %.loc21_50 [concrete = constants.%C.e73]
-// CHECK:STDOUT:   %facet_value.loc21_52: %Y_where.type.6af = facet_value constants.%C.e73, (constants.%Y.impl_witness.997) [concrete = constants.%facet_value.ed1]
-// CHECK:STDOUT:   %.loc21_52: %Y_where.type.6af = converted constants.%C.e73, %facet_value.loc21_52 [concrete = constants.%facet_value.ed1]
-// CHECK:STDOUT:   %Outer.G.specific_fn: <specific function> = specific_function %G.ref, @Outer.G(constants.%Z1.facet, constants.%facet_value.ed1) [concrete = constants.%Outer.G.specific_fn]
+// CHECK:STDOUT:   %Outer.loc21_49: type = class_type @Outer, @Outer(constants.%Z1.facet) [concrete = constants.%Outer.406]
+// CHECK:STDOUT:   %.loc21_50: type = specific_constant @Outer.%C.decl, @Outer(constants.%Z1.facet) [concrete = constants.%C.b85]
+// CHECK:STDOUT:   %C.ref: type = name_ref C, %.loc21_50 [concrete = constants.%C.b85]
+// CHECK:STDOUT:   %facet_value.loc21_52: %Y_where.type.f47 = facet_value constants.%C.b85, (constants.%Y.impl_witness.2d3) [concrete = constants.%facet_value.9bc]
+// CHECK:STDOUT:   %.loc21_52: %Y_where.type.f47 = converted constants.%C.b85, %facet_value.loc21_52 [concrete = constants.%facet_value.9bc]
+// CHECK:STDOUT:   %Outer.G.specific_fn: <specific function> = specific_function %G.ref, @Outer.G(constants.%Z1.facet, constants.%facet_value.9bc) [concrete = constants.%Outer.G.specific_fn]
 // CHECK:STDOUT:   %Outer.G.call: init %empty_tuple.type = call %Outer.G.specific_fn()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -841,123 +841,123 @@ fn F() {
 // CHECK:STDOUT:   %OuterParam.loc6_13.1 => constants.%OuterParam
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.5e4
-// CHECK:STDOUT:   %Outer.G.type => constants.%Outer.G.type.854
-// CHECK:STDOUT:   %Outer.G => constants.%Outer.G.e2b
-// CHECK:STDOUT:   %C => constants.%C.4b0
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.b38
+// CHECK:STDOUT:   %Outer.G.type => constants.%Outer.G.type.cfe
+// CHECK:STDOUT:   %Outer.G => constants.%Outer.G.824
+// CHECK:STDOUT:   %C => constants.%C.660
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Y(constants.%OuterParam) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.5e4
-// CHECK:STDOUT:   %Self.2 => constants.%Self.048
-// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.2a6
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.603
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.b38
+// CHECK:STDOUT:   %Self.2 => constants.%Self.957
+// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.b7a
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.9f8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Self.048) {}
+// CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Self.957) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T(constants.%OuterParam, constants.%Y.facet) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.G(constants.%OuterParam, constants.%H) {
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.5e4
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.99e
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d37
-// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.2a6
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.603
-// CHECK:STDOUT:   %.Self.as_type.loc11_20.1 => constants.%.Self.as_type.3b9
-// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.c65
-// CHECK:STDOUT:   %impl.elem0.loc11_20.1 => constants.%impl.elem0.23d
-// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.fee
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.b38
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.de8
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.527
+// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.b7a
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.9f8
+// CHECK:STDOUT:   %.Self.as_type.loc11_20.1 => constants.%.Self.as_type.fbc
+// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.787
+// CHECK:STDOUT:   %impl.elem0.loc11_20.1 => constants.%impl.elem0.b76
+// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.1f2
 // CHECK:STDOUT:   %H.loc11_8.1 => constants.%H
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b86
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.23c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%OuterParam) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Y.impl(constants.%OuterParam) {
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %C => constants.%C.4b0
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.5e4
-// CHECK:STDOUT:   %.Self.2 => constants.%.Self.99e
-// CHECK:STDOUT:   %require_complete.loc14_21 => constants.%require_complete.d37
-// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.2a6
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.603
-// CHECK:STDOUT:   %.Self.as_type.loc14_21.2 => constants.%.Self.as_type.3b9
-// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.c65
-// CHECK:STDOUT:   %impl.elem0.loc14_21.2 => constants.%impl.elem0.23d
-// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.fee
-// CHECK:STDOUT:   %require_complete.loc14_15 => constants.%require_complete.1fd
-// CHECK:STDOUT:   %Y.impl_witness => constants.%Y.impl_witness.f45
+// CHECK:STDOUT:   %C => constants.%C.660
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.b38
+// CHECK:STDOUT:   %.Self.2 => constants.%.Self.de8
+// CHECK:STDOUT:   %require_complete.loc14_21 => constants.%require_complete.527
+// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.b7a
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.9f8
+// CHECK:STDOUT:   %.Self.as_type.loc14_21.2 => constants.%.Self.as_type.fbc
+// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.787
+// CHECK:STDOUT:   %impl.elem0.loc14_21.2 => constants.%impl.elem0.b76
+// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.1f2
+// CHECK:STDOUT:   %require_complete.loc14_15 => constants.%require_complete.dc1
+// CHECK:STDOUT:   %Y.impl_witness => constants.%Y.impl_witness.1ea
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl(constants.%OuterParam) {
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %Outer => constants.%Outer.fea
+// CHECK:STDOUT:   %Outer => constants.%Outer.a5c
 // CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer.as.Destroy.impl.Op(constants.%OuterParam) {
 // CHECK:STDOUT:   %OuterParam => constants.%OuterParam
-// CHECK:STDOUT:   %Outer => constants.%Outer.fea
-// CHECK:STDOUT:   %ptr => constants.%ptr.00b
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f97
+// CHECK:STDOUT:   %Outer => constants.%Outer.a5c
+// CHECK:STDOUT:   %ptr => constants.%ptr.580
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.eb9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Outer(constants.%Z1.facet) {
 // CHECK:STDOUT:   %OuterParam.loc6_13.1 => constants.%Z1.facet
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.927
-// CHECK:STDOUT:   %Outer.G.type => constants.%Outer.G.type.663
-// CHECK:STDOUT:   %Outer.G => constants.%Outer.G.ba4
-// CHECK:STDOUT:   %C => constants.%C.e73
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.f82
+// CHECK:STDOUT:   %Outer.G.type => constants.%Outer.G.type.8c8
+// CHECK:STDOUT:   %Outer.G => constants.%Outer.G.bc6
+// CHECK:STDOUT:   %C => constants.%C.b85
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Y(constants.%Z1.facet) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %OuterParam => constants.%Z1.facet
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.927
-// CHECK:STDOUT:   %Self.2 => constants.%Self.bdf
-// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.93b
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.aa8
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.f82
+// CHECK:STDOUT:   %Self.2 => constants.%Self.7e3
+// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.de4
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.0ca
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%Z1.facet) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Y.impl(constants.%Z1.facet) {
 // CHECK:STDOUT:   %OuterParam => constants.%Z1.facet
-// CHECK:STDOUT:   %C => constants.%C.e73
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.927
-// CHECK:STDOUT:   %.Self.2 => constants.%.Self.3de
-// CHECK:STDOUT:   %require_complete.loc14_21 => constants.%complete_type.066
-// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.93b
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.aa8
-// CHECK:STDOUT:   %.Self.as_type.loc14_21.2 => constants.%.Self.as_type.7ce
-// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.a49
-// CHECK:STDOUT:   %impl.elem0.loc14_21.2 => constants.%impl.elem0.8ce
-// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.6af
-// CHECK:STDOUT:   %require_complete.loc14_15 => constants.%complete_type.997
-// CHECK:STDOUT:   %Y.impl_witness => constants.%Y.impl_witness.997
+// CHECK:STDOUT:   %C => constants.%C.b85
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.f82
+// CHECK:STDOUT:   %.Self.2 => constants.%.Self.c9d
+// CHECK:STDOUT:   %require_complete.loc14_21 => constants.%complete_type.c57
+// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.de4
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.0ca
+// CHECK:STDOUT:   %.Self.as_type.loc14_21.2 => constants.%.Self.as_type.09c
+// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.fbf
+// CHECK:STDOUT:   %impl.elem0.loc14_21.2 => constants.%impl.elem0.406
+// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.f47
+// CHECK:STDOUT:   %require_complete.loc14_15 => constants.%complete_type.b7b
+// CHECK:STDOUT:   %Y.impl_witness => constants.%Y.impl_witness.2d3
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Outer.G(constants.%Z1.facet, constants.%facet_value.ed1) {
+// CHECK:STDOUT: specific @Outer.G(constants.%Z1.facet, constants.%facet_value.9bc) {
 // CHECK:STDOUT:   %OuterParam => constants.%Z1.facet
-// CHECK:STDOUT:   %Y.type => constants.%Y.type.927
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.3de
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.066
-// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.93b
-// CHECK:STDOUT:   %assoc0 => constants.%assoc0.aa8
-// CHECK:STDOUT:   %.Self.as_type.loc11_20.1 => constants.%.Self.as_type.7ce
-// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.a49
-// CHECK:STDOUT:   %impl.elem0.loc11_20.1 => constants.%impl.elem0.8ce
-// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.6af
-// CHECK:STDOUT:   %H.loc11_8.1 => constants.%facet_value.ed1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b1a
+// CHECK:STDOUT:   %Y.type => constants.%Y.type.f82
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.c9d
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.c57
+// CHECK:STDOUT:   %Y.assoc_type => constants.%Y.assoc_type.de4
+// CHECK:STDOUT:   %assoc0 => constants.%assoc0.0ca
+// CHECK:STDOUT:   %.Self.as_type.loc11_20.1 => constants.%.Self.as_type.09c
+// CHECK:STDOUT:   %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness.fbf
+// CHECK:STDOUT:   %impl.elem0.loc11_20.1 => constants.%impl.elem0.406
+// CHECK:STDOUT:   %Y_where.type => constants.%Y_where.type.f47
+// CHECK:STDOUT:   %H.loc11_8.1 => constants.%facet_value.9bc
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.0c9
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/impl/lookup/specialization_with_symbolic_rewrite.carbon b/toolchain/check/testdata/impl/lookup/specialization_with_symbolic_rewrite.carbon
index 91b8c9917009..908d878f3d61 100644
--- a/toolchain/check/testdata/impl/lookup/specialization_with_symbolic_rewrite.carbon
+++ b/toolchain/check/testdata/impl/lookup/specialization_with_symbolic_rewrite.carbon
@@ -103,8 +103,8 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %Z.type.9fb: type = generic_interface_type @Z [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Z.generic: %Z.type.9fb = struct_value () [concrete]
-// CHECK:STDOUT:   %Z.type.a61: type = facet_type <@Z, @Z(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.2bc: %Z.type.a61 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Z.type.479: type = facet_type <@Z, @Z(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.e37: %Z.type.479 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type.26e: type = assoc_entity_type @Z, @Z(%T.8b3) [symbolic]
 // CHECK:STDOUT:   %assoc0.1cd: %Z.assoc_type.26e = assoc_entity element0, @Z.%X [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
@@ -118,42 +118,42 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %S: type = bind_symbolic_name S, 1 [symbolic]
-// CHECK:STDOUT:   %Z.type.8e9: type = facet_type <@Z, @Z(%S)> [symbolic]
-// CHECK:STDOUT:   %.Self.eb1: %Z.type.8e9 = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %Self.831: %Z.type.8e9 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Z.type.c8d: type = facet_type <@Z, @Z(%S)> [symbolic]
+// CHECK:STDOUT:   %.Self.b93: %Z.type.c8d = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %Self.dd2: %Z.type.c8d = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type.0e7: type = assoc_entity_type @Z, @Z(%S) [symbolic]
 // CHECK:STDOUT:   %assoc0.abb: %Z.assoc_type.0e7 = assoc_entity element0, @Z.%X [symbolic]
-// CHECK:STDOUT:   %require_complete.b87: <witness> = require_complete_type %Z.type.8e9 [symbolic]
-// CHECK:STDOUT:   %.Self.as_type.ffd: type = facet_access_type %.Self.eb1 [symbolic]
-// CHECK:STDOUT:   %Z.lookup_impl_witness.597: <witness> = lookup_impl_witness %.Self.eb1, @Z, @Z(%S) [symbolic]
-// CHECK:STDOUT:   %Z.facet.4f7: %Z.type.8e9 = facet_value %.Self.as_type.ffd, (%Z.lookup_impl_witness.597) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.240: type = impl_witness_access %Z.lookup_impl_witness.597, element0 [symbolic]
-// CHECK:STDOUT:   %Z_where.type.80d: type = facet_type <@Z, @Z(%S) where %impl.elem0.240 = %empty_tuple.type> [symbolic]
-// CHECK:STDOUT:   %require_complete.9ea: <witness> = require_complete_type %Z_where.type.80d [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.d59: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @T.as.Z.impl.119(%T.8b3, %S) [symbolic]
-// CHECK:STDOUT:   %Z.type.049: type = facet_type <@Z, @Z(%C)> [concrete]
-// CHECK:STDOUT:   %.Self.3c5: %Z.type.049 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Self.a38: %Z.type.049 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %require_complete.499: <witness> = require_complete_type %Z.type.c8d [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.8ac: type = facet_access_type %.Self.b93 [symbolic]
+// CHECK:STDOUT:   %Z.lookup_impl_witness.868: <witness> = lookup_impl_witness %.Self.b93, @Z, @Z(%S) [symbolic]
+// CHECK:STDOUT:   %Z.facet.534: %Z.type.c8d = facet_value %.Self.as_type.8ac, (%Z.lookup_impl_witness.868) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.db8: type = impl_witness_access %Z.lookup_impl_witness.868, element0 [symbolic]
+// CHECK:STDOUT:   %Z_where.type.b55: type = facet_type <@Z, @Z(%S) where %impl.elem0.db8 = %empty_tuple.type> [symbolic]
+// CHECK:STDOUT:   %require_complete.1e1: <witness> = require_complete_type %Z_where.type.b55 [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.5c8: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @T.as.Z.impl.3cf(%T.8b3, %S) [symbolic]
+// CHECK:STDOUT:   %Z.type.e64: type = facet_type <@Z, @Z(%C)> [concrete]
+// CHECK:STDOUT:   %.Self.060: %Z.type.e64 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Self.10d: %Z.type.e64 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type.252: type = assoc_entity_type @Z, @Z(%C) [concrete]
 // CHECK:STDOUT:   %assoc0.ea4: %Z.assoc_type.252 = assoc_entity element0, @Z.%X [concrete]
-// CHECK:STDOUT:   %.Self.as_type.c3c: type = facet_access_type %.Self.3c5 [symbolic_self]
-// CHECK:STDOUT:   %Z.lookup_impl_witness.9cc: <witness> = lookup_impl_witness %.Self.3c5, @Z, @Z(%C) [symbolic_self]
-// CHECK:STDOUT:   %Z.facet.eb4: %Z.type.049 = facet_value %.Self.as_type.c3c, (%Z.lookup_impl_witness.9cc) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.e29: type = impl_witness_access %Z.lookup_impl_witness.9cc, element0 [symbolic_self]
-// CHECK:STDOUT:   %Z_where.type.692: type = facet_type <@Z, @Z(%C) where %impl.elem0.e29 = %T.8b3> [symbolic]
-// CHECK:STDOUT:   %require_complete.202: <witness> = require_complete_type %Z_where.type.692 [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.093: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.62c(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %T.62d: %Z.type.049 = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.c1f: type = pattern_type %Z.type.049 [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.62d [symbolic]
-// CHECK:STDOUT:   %pattern_type.d8b: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.ddb: type = facet_access_type %.Self.060 [symbolic_self]
+// CHECK:STDOUT:   %Z.lookup_impl_witness.4bf: <witness> = lookup_impl_witness %.Self.060, @Z, @Z(%C) [symbolic_self]
+// CHECK:STDOUT:   %Z.facet.634: %Z.type.e64 = facet_value %.Self.as_type.ddb, (%Z.lookup_impl_witness.4bf) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.2a3: type = impl_witness_access %Z.lookup_impl_witness.4bf, element0 [symbolic_self]
+// CHECK:STDOUT:   %Z_where.type.b91: type = facet_type <@Z, @Z(%C) where %impl.elem0.2a3 = %T.8b3> [symbolic]
+// CHECK:STDOUT:   %require_complete.963: <witness> = require_complete_type %Z_where.type.b91 [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.e2a: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.26f(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %T.f93: %Z.type.e64 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.80b: type = pattern_type %Z.type.e64 [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.f93 [symbolic]
+// CHECK:STDOUT:   %pattern_type.a02: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.2b1: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %Z_where.type.272: type = facet_type <@Z, @Z(%C) where %impl.elem0.e29 = %T.as_type> [symbolic]
-// CHECK:STDOUT:   %require_complete.915: <witness> = require_complete_type %Z_where.type.272 [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.7c2: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.62c(%T.as_type) [symbolic]
-// CHECK:STDOUT:   %Z.facet.2aa: %Z.type.049 = facet_value %T.as_type, (%Z.impl_witness.7c2) [symbolic]
+// CHECK:STDOUT:   %require_complete.ce2: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %Z_where.type.ab3: type = facet_type <@Z, @Z(%C) where %impl.elem0.2a3 = %T.as_type> [symbolic]
+// CHECK:STDOUT:   %require_complete.beb: <witness> = require_complete_type %Z_where.type.ab3 [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.2e4: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.26f(%T.as_type) [symbolic]
+// CHECK:STDOUT:   %Z.facet.fcf: %Z.type.e64 = facet_value %T.as_type, (%Z.impl_witness.2e4) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -180,25 +180,25 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %T.loc3_13.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc3_13.1 (constants.%T.8b3)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
-// CHECK:STDOUT:   impl_decl @T.as.Z.impl.119 [concrete] {
+// CHECK:STDOUT:   impl_decl @T.as.Z.impl.3cf [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:     %S.patt: %pattern_type.98f = symbolic_binding_pattern S, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc9_14.1 [symbolic = %T.loc9_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:     %Z.ref: %Z.type.9fb = name_ref Z, file.%Z.decl [concrete = constants.%Z.generic]
 // CHECK:STDOUT:     %S.ref: type = name_ref S, %S.loc9_24.1 [symbolic = %S.loc9_24.2 (constants.%S)]
-// CHECK:STDOUT:     %Z.type.loc9_42.1: type = facet_type <@Z, @Z(constants.%S)> [symbolic = %Z.type.loc9_42.2 (constants.%Z.type.8e9)]
-// CHECK:STDOUT:     %.Self.1: @T.as.Z.impl.119.%Z.type.loc9_42.2 (%Z.type.8e9) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.eb1)]
-// CHECK:STDOUT:     %.Self.ref: @T.as.Z.impl.119.%Z.type.loc9_42.2 (%Z.type.8e9) = name_ref .Self, %.Self.1 [symbolic = %.Self.4 (constants.%.Self.eb1)]
-// CHECK:STDOUT:     %.loc9_50.1: @T.as.Z.impl.119.%Z.assoc_type (%Z.assoc_type.0e7) = specific_constant @X.%assoc0, @Z(constants.%S) [symbolic = %assoc0 (constants.%assoc0.abb)]
-// CHECK:STDOUT:     %X.ref: @T.as.Z.impl.119.%Z.assoc_type (%Z.assoc_type.0e7) = name_ref X, %.loc9_50.1 [symbolic = %assoc0 (constants.%assoc0.abb)]
-// CHECK:STDOUT:     %.Self.as_type.loc9_50.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc9_50.2 (constants.%.Self.as_type.ffd)]
-// CHECK:STDOUT:     %.loc9_50.2: type = converted %.Self.ref, %.Self.as_type.loc9_50.1 [symbolic = %.Self.as_type.loc9_50.2 (constants.%.Self.as_type.ffd)]
-// CHECK:STDOUT:     %impl.elem0.loc9_50.1: type = impl_witness_access constants.%Z.lookup_impl_witness.597, element0 [symbolic = %impl.elem0.loc9_50.2 (constants.%impl.elem0.240)]
+// CHECK:STDOUT:     %Z.type.loc9_42.1: type = facet_type <@Z, @Z(constants.%S)> [symbolic = %Z.type.loc9_42.2 (constants.%Z.type.c8d)]
+// CHECK:STDOUT:     %.Self.1: @T.as.Z.impl.3cf.%Z.type.loc9_42.2 (%Z.type.c8d) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.b93)]
+// CHECK:STDOUT:     %.Self.ref: @T.as.Z.impl.3cf.%Z.type.loc9_42.2 (%Z.type.c8d) = name_ref .Self, %.Self.1 [symbolic = %.Self.4 (constants.%.Self.b93)]
+// CHECK:STDOUT:     %.loc9_50.1: @T.as.Z.impl.3cf.%Z.assoc_type (%Z.assoc_type.0e7) = specific_constant @X.%assoc0, @Z(constants.%S) [symbolic = %assoc0 (constants.%assoc0.abb)]
+// CHECK:STDOUT:     %X.ref: @T.as.Z.impl.3cf.%Z.assoc_type (%Z.assoc_type.0e7) = name_ref X, %.loc9_50.1 [symbolic = %assoc0 (constants.%assoc0.abb)]
+// CHECK:STDOUT:     %.Self.as_type.loc9_50.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc9_50.2 (constants.%.Self.as_type.8ac)]
+// CHECK:STDOUT:     %.loc9_50.2: type = converted %.Self.ref, %.Self.as_type.loc9_50.1 [symbolic = %.Self.as_type.loc9_50.2 (constants.%.Self.as_type.8ac)]
+// CHECK:STDOUT:     %impl.elem0.loc9_50.1: type = impl_witness_access constants.%Z.lookup_impl_witness.868, element0 [symbolic = %impl.elem0.loc9_50.2 (constants.%impl.elem0.db8)]
 // CHECK:STDOUT:     %.loc9_56.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc9_56.2: type = converted %.loc9_56.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %.loc9_44: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.80d)] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.8e9
+// CHECK:STDOUT:     %.loc9_44: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.b55)] {
+// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.c8d
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0.loc9_50.1, %.loc9_56.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
@@ -206,49 +206,49 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %.Self.3: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:     %S.loc9_24.1: type = bind_symbolic_name S, 1 [symbolic = %S.loc9_24.2 (constants.%S)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Z.impl_witness_table.loc9 = impl_witness_table (%impl_witness_assoc_constant.loc9), @T.as.Z.impl.119 [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc9: <witness> = impl_witness %Z.impl_witness_table.loc9, @T.as.Z.impl.119(constants.%T.8b3, constants.%S) [symbolic = @T.as.Z.impl.119.%Z.impl_witness (constants.%Z.impl_witness.d59)]
+// CHECK:STDOUT:   %Z.impl_witness_table.loc9 = impl_witness_table (%impl_witness_assoc_constant.loc9), @T.as.Z.impl.3cf [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.loc9: <witness> = impl_witness %Z.impl_witness_table.loc9, @T.as.Z.impl.3cf(constants.%T.8b3, constants.%S) [symbolic = @T.as.Z.impl.3cf.%Z.impl_witness (constants.%Z.impl_witness.5c8)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc9: type = impl_witness_assoc_constant constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:   impl_decl @T.as.Z.impl.62c [concrete] {
+// CHECK:STDOUT:   impl_decl @T.as.Z.impl.26f [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc11_30: type = name_ref T, %T.loc11_20.1 [symbolic = %T.loc11_20.2 (constants.%T.8b3)]
 // CHECK:STDOUT:     %Z.ref: %Z.type.9fb = name_ref Z, file.%Z.decl [concrete = constants.%Z.generic]
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.049]
-// CHECK:STDOUT:     %.Self.1: %Z.type.049 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.3c5]
-// CHECK:STDOUT:     %.Self.ref: %Z.type.049 = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.3c5]
+// CHECK:STDOUT:     %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.e64]
+// CHECK:STDOUT:     %.Self.1: %Z.type.e64 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.060]
+// CHECK:STDOUT:     %.Self.ref: %Z.type.e64 = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.060]
 // CHECK:STDOUT:     %.loc11_46.1: %Z.assoc_type.252 = specific_constant @X.%assoc0, @Z(constants.%C) [concrete = constants.%assoc0.ea4]
 // CHECK:STDOUT:     %X.ref: %Z.assoc_type.252 = name_ref X, %.loc11_46.1 [concrete = constants.%assoc0.ea4]
-// CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.c3c]
-// CHECK:STDOUT:     %.loc11_46.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.c3c]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Z.lookup_impl_witness.9cc, element0 [symbolic_self = constants.%impl.elem0.e29]
+// CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.ddb]
+// CHECK:STDOUT:     %.loc11_46.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.ddb]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Z.lookup_impl_witness.4bf, element0 [symbolic_self = constants.%impl.elem0.2a3]
 // CHECK:STDOUT:     %T.ref.loc11_51: type = name_ref T, %T.loc11_20.1 [symbolic = %T.loc11_20.2 (constants.%T.8b3)]
-// CHECK:STDOUT:     %.loc11_40: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.692)] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.049
+// CHECK:STDOUT:     %.loc11_40: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.b91)] {
+// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.e64
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %T.ref.loc11_51
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:     %T.loc11_20.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_20.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Z.impl_witness_table.loc11 = impl_witness_table (%impl_witness_assoc_constant.loc11), @T.as.Z.impl.62c [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc11: <witness> = impl_witness %Z.impl_witness_table.loc11, @T.as.Z.impl.62c(constants.%T.8b3) [symbolic = @T.as.Z.impl.62c.%Z.impl_witness (constants.%Z.impl_witness.093)]
-// CHECK:STDOUT:   %impl_witness_assoc_constant.loc11: type = impl_witness_assoc_constant constants.%T.8b3 [symbolic = @T.as.Z.impl.62c.%T.loc11_20.2 (constants.%T.8b3)]
+// CHECK:STDOUT:   %Z.impl_witness_table.loc11 = impl_witness_table (%impl_witness_assoc_constant.loc11), @T.as.Z.impl.26f [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.loc11: <witness> = impl_witness %Z.impl_witness_table.loc11, @T.as.Z.impl.26f(constants.%T.8b3) [symbolic = @T.as.Z.impl.26f.%Z.impl_witness (constants.%Z.impl_witness.e2a)]
+// CHECK:STDOUT:   %impl_witness_assoc_constant.loc11: type = impl_witness_assoc_constant constants.%T.8b3 [symbolic = @T.as.Z.impl.26f.%T.loc11_20.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.c1f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @F.%pattern_type (%pattern_type.d8b) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type (%pattern_type.d8b) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.80b = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @F.%pattern_type (%pattern_type.a02) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type (%pattern_type.a02) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc13_13: type = splice_block %Z.type [concrete = constants.%Z.type.049] {
+// CHECK:STDOUT:     %.loc13_13: type = splice_block %Z.type [concrete = constants.%Z.type.e64] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %Z.ref: %Z.type.9fb = name_ref Z, file.%Z.decl [concrete = constants.%Z.generic]
 // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:       %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.049]
+// CHECK:STDOUT:       %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.e64]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc13_6.2: %Z.type.049 = bind_symbolic_name T, 0 [symbolic = %T.loc13_6.1 (constants.%T.62d)]
+// CHECK:STDOUT:     %T.loc13_6.2: %Z.type.e64 = bind_symbolic_name T, 0 [symbolic = %T.loc13_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:     %t.param: @F.%T.as_type.loc13_19.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc13_19.1: type = splice_block %.loc13_19.2 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc13: %Z.type.049 = name_ref T, %T.loc13_6.2 [symbolic = %T.loc13_6.1 (constants.%T.62d)]
+// CHECK:STDOUT:       %T.ref.loc13: %Z.type.e64 = name_ref T, %T.loc13_6.2 [symbolic = %T.loc13_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:       %T.as_type.loc13_19.2: type = facet_access_type %T.ref.loc13 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc13_19.2: type = converted %T.ref.loc13, %T.as_type.loc13_19.2 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -260,13 +260,13 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %T.loc3_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc3_13.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Z.type: type = facet_type <@Z, @Z(%T.loc3_13.1)> [symbolic = %Z.type (constants.%Z.type.a61)]
-// CHECK:STDOUT:   %Self.2: @Z.%Z.type (%Z.type.a61) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2bc)]
+// CHECK:STDOUT:   %Z.type: type = facet_type <@Z, @Z(%T.loc3_13.1)> [symbolic = %Z.type (constants.%Z.type.479)]
+// CHECK:STDOUT:   %Self.2: @Z.%Z.type (%Z.type.479) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.e37)]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z, @Z(%T.loc3_13.1) [symbolic = %Z.assoc_type (constants.%Z.assoc_type.26e)]
 // CHECK:STDOUT:   %assoc0: @Z.%Z.assoc_type (%Z.assoc_type.26e) = assoc_entity element0, %X [symbolic = %assoc0 (constants.%assoc0.1cd)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Z.%Z.type (%Z.type.a61) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2bc)]
+// CHECK:STDOUT:     %Self.1: @Z.%Z.type (%Z.type.479) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.e37)]
 // CHECK:STDOUT:     %X: type = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:       %assoc0: @Z.%Z.assoc_type (%Z.assoc_type.26e) = assoc_entity element0, @Z.%X [symbolic = @Z.%assoc0 (constants.%assoc0.1cd)]
 // CHECK:STDOUT:     }
@@ -278,7 +278,7 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @X(@Z.%T.loc3_13.2: type, @Z.%Self.1: @Z.%Z.type (%Z.type.a61)) {
+// CHECK:STDOUT: generic assoc_const @X(@Z.%T.loc3_13.2: type, @Z.%Self.1: @Z.%Z.type (%Z.type.479)) {
 // CHECK:STDOUT:   assoc_const X:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -298,20 +298,20 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   witness = @C.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as.Z.impl.119(%T.loc9_14.1: type, %S.loc9_24.1: type) {
+// CHECK:STDOUT: generic impl @T.as.Z.impl.3cf(%T.loc9_14.1: type, %S.loc9_24.1: type) {
 // CHECK:STDOUT:   %T.loc9_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   %S.loc9_24.2: type = bind_symbolic_name S, 1 [symbolic = %S.loc9_24.2 (constants.%S)]
-// CHECK:STDOUT:   %Z.type.loc9_42.2: type = facet_type <@Z, @Z(%S.loc9_24.2)> [symbolic = %Z.type.loc9_42.2 (constants.%Z.type.8e9)]
-// CHECK:STDOUT:   %.Self.4: @T.as.Z.impl.119.%Z.type.loc9_42.2 (%Z.type.8e9) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.eb1)]
-// CHECK:STDOUT:   %require_complete.loc9_50: <witness> = require_complete_type %Z.type.loc9_42.2 [symbolic = %require_complete.loc9_50 (constants.%require_complete.b87)]
+// CHECK:STDOUT:   %Z.type.loc9_42.2: type = facet_type <@Z, @Z(%S.loc9_24.2)> [symbolic = %Z.type.loc9_42.2 (constants.%Z.type.c8d)]
+// CHECK:STDOUT:   %.Self.4: @T.as.Z.impl.3cf.%Z.type.loc9_42.2 (%Z.type.c8d) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.b93)]
+// CHECK:STDOUT:   %require_complete.loc9_50: <witness> = require_complete_type %Z.type.loc9_42.2 [symbolic = %require_complete.loc9_50 (constants.%require_complete.499)]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z, @Z(%S.loc9_24.2) [symbolic = %Z.assoc_type (constants.%Z.assoc_type.0e7)]
-// CHECK:STDOUT:   %assoc0: @T.as.Z.impl.119.%Z.assoc_type (%Z.assoc_type.0e7) = assoc_entity element0, @Z.%X [symbolic = %assoc0 (constants.%assoc0.abb)]
-// CHECK:STDOUT:   %.Self.as_type.loc9_50.2: type = facet_access_type %.Self.4 [symbolic = %.Self.as_type.loc9_50.2 (constants.%.Self.as_type.ffd)]
-// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.4, @Z, @Z(%S.loc9_24.2) [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness.597)]
-// CHECK:STDOUT:   %impl.elem0.loc9_50.2: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_50.2 (constants.%impl.elem0.240)]
-// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(%S.loc9_24.2) where %impl.elem0.loc9_50.2 = constants.%empty_tuple.type> [symbolic = %Z_where.type (constants.%Z_where.type.80d)]
-// CHECK:STDOUT:   %require_complete.loc9_44: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete.loc9_44 (constants.%require_complete.9ea)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @T.as.Z.impl.119(%T.loc9_14.2, %S.loc9_24.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.d59)]
+// CHECK:STDOUT:   %assoc0: @T.as.Z.impl.3cf.%Z.assoc_type (%Z.assoc_type.0e7) = assoc_entity element0, @Z.%X [symbolic = %assoc0 (constants.%assoc0.abb)]
+// CHECK:STDOUT:   %.Self.as_type.loc9_50.2: type = facet_access_type %.Self.4 [symbolic = %.Self.as_type.loc9_50.2 (constants.%.Self.as_type.8ac)]
+// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.4, @Z, @Z(%S.loc9_24.2) [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness.868)]
+// CHECK:STDOUT:   %impl.elem0.loc9_50.2: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_50.2 (constants.%impl.elem0.db8)]
+// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(%S.loc9_24.2) where %impl.elem0.loc9_50.2 = constants.%empty_tuple.type> [symbolic = %Z_where.type (constants.%Z_where.type.b55)]
+// CHECK:STDOUT:   %require_complete.loc9_44: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete.loc9_44 (constants.%require_complete.1e1)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc9, @T.as.Z.impl.3cf(%T.loc9_14.2, %S.loc9_24.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.5c8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -321,11 +321,11 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as.Z.impl.62c(%T.loc11_20.1: type) {
+// CHECK:STDOUT: generic impl @T.as.Z.impl.26f(%T.loc11_20.1: type) {
 // CHECK:STDOUT:   %T.loc11_20.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc11_20.2 (constants.%T.8b3)]
-// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(constants.%C) where constants.%impl.elem0.e29 = %T.loc11_20.2> [symbolic = %Z_where.type (constants.%Z_where.type.692)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete (constants.%require_complete.202)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.62c(%T.loc11_20.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.093)]
+// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(constants.%C) where constants.%impl.elem0.2a3 = %T.loc11_20.2> [symbolic = %Z_where.type (constants.%Z_where.type.b91)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete (constants.%require_complete.963)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.26f(%T.loc11_20.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.e2a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -349,30 +349,30 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @F(%T.loc13_6.2: %Z.type.049) {
-// CHECK:STDOUT:   %T.loc13_6.1: %Z.type.049 = bind_symbolic_name T, 0 [symbolic = %T.loc13_6.1 (constants.%T.62d)]
+// CHECK:STDOUT: generic fn @F(%T.loc13_6.2: %Z.type.e64) {
+// CHECK:STDOUT:   %T.loc13_6.1: %Z.type.e64 = bind_symbolic_name T, 0 [symbolic = %T.loc13_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:   %T.as_type.loc13_19.1: type = facet_access_type %T.loc13_6.1 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc13_19.1 [symbolic = %pattern_type (constants.%pattern_type.d8b)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc13_19.1 [symbolic = %pattern_type (constants.%pattern_type.a02)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc13_19.1 [symbolic = %require_complete (constants.%require_complete.2b1)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.62c(%T.as_type.loc13_19.1) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.7c2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc13_19.1 [symbolic = %require_complete (constants.%require_complete.ce2)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc11, @T.as.Z.impl.26f(%T.as_type.loc13_19.1) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.2e4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc13_19.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     name_binding_decl {
-// CHECK:STDOUT:       %a.patt: @F.%pattern_type (%pattern_type.d8b) = binding_pattern a [concrete]
+// CHECK:STDOUT:       %a.patt: @F.%pattern_type (%pattern_type.a02) = binding_pattern a [concrete]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t.ref: @F.%T.as_type.loc13_19.1 (%T.as_type) = name_ref t, %t
 // CHECK:STDOUT:     %.loc15_11.1: type = splice_block %impl.elem0 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc15: %Z.type.049 = name_ref T, %T.loc13_6.2 [symbolic = %T.loc13_6.1 (constants.%T.62d)]
+// CHECK:STDOUT:       %T.ref.loc15: %Z.type.e64 = name_ref T, %T.loc13_6.2 [symbolic = %T.loc13_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:       %.loc15_11.2: %Z.assoc_type.252 = specific_constant @X.%assoc0, @Z(constants.%C) [concrete = constants.%assoc0.ea4]
 // CHECK:STDOUT:       %X.ref: %Z.assoc_type.252 = name_ref X, %.loc15_11.2 [concrete = constants.%assoc0.ea4]
 // CHECK:STDOUT:       %T.as_type.loc15_11.1: type = facet_access_type %T.ref.loc15 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc15_11.3: type = converted %T.ref.loc15, %T.as_type.loc15_11.1 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %T.as_type.loc15_11.2: type = facet_access_type constants.%T.62d [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %.loc15_11.4: type = converted constants.%T.62d, %T.as_type.loc15_11.2 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %impl.elem0: type = impl_witness_access constants.%Z.impl_witness.7c2, element0 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
+// CHECK:STDOUT:       %T.as_type.loc15_11.2: type = facet_access_type constants.%T.f93 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
+// CHECK:STDOUT:       %.loc15_11.4: type = converted constants.%T.f93, %T.as_type.loc15_11.2 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
+// CHECK:STDOUT:       %impl.elem0: type = impl_witness_access constants.%Z.impl_witness.2e4, element0 [symbolic = %T.as_type.loc13_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %a: @F.%T.as_type.loc13_19.1 (%T.as_type) = bind_name a, %t.ref
 // CHECK:STDOUT:     return
@@ -383,71 +383,71 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %T.loc3_13.1 => constants.%T.8b3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%T.8b3, constants.%Self.2bc) {}
+// CHECK:STDOUT: specific @X(constants.%T.8b3, constants.%Self.e37) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z(constants.%S) {
 // CHECK:STDOUT:   %T.loc3_13.1 => constants.%S
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Z.type => constants.%Z.type.8e9
-// CHECK:STDOUT:   %Self.2 => constants.%Self.831
+// CHECK:STDOUT:   %Z.type => constants.%Z.type.c8d
+// CHECK:STDOUT:   %Self.2 => constants.%Self.dd2
 // CHECK:STDOUT:   %Z.assoc_type => constants.%Z.assoc_type.0e7
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.abb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%S, constants.%Z.facet.4f7) {}
+// CHECK:STDOUT: specific @X(constants.%S, constants.%Z.facet.534) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.Z.impl.119(constants.%T.8b3, constants.%S) {
+// CHECK:STDOUT: specific @T.as.Z.impl.3cf(constants.%T.8b3, constants.%S) {
 // CHECK:STDOUT:   %T.loc9_14.2 => constants.%T.8b3
 // CHECK:STDOUT:   %S.loc9_24.2 => constants.%S
-// CHECK:STDOUT:   %Z.type.loc9_42.2 => constants.%Z.type.8e9
-// CHECK:STDOUT:   %.Self.4 => constants.%.Self.eb1
-// CHECK:STDOUT:   %require_complete.loc9_50 => constants.%require_complete.b87
+// CHECK:STDOUT:   %Z.type.loc9_42.2 => constants.%Z.type.c8d
+// CHECK:STDOUT:   %.Self.4 => constants.%.Self.b93
+// CHECK:STDOUT:   %require_complete.loc9_50 => constants.%require_complete.499
 // CHECK:STDOUT:   %Z.assoc_type => constants.%Z.assoc_type.0e7
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.abb
-// CHECK:STDOUT:   %.Self.as_type.loc9_50.2 => constants.%.Self.as_type.ffd
-// CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.lookup_impl_witness.597
-// CHECK:STDOUT:   %impl.elem0.loc9_50.2 => constants.%impl.elem0.240
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.80d
-// CHECK:STDOUT:   %require_complete.loc9_44 => constants.%require_complete.9ea
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.d59
+// CHECK:STDOUT:   %.Self.as_type.loc9_50.2 => constants.%.Self.as_type.8ac
+// CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.lookup_impl_witness.868
+// CHECK:STDOUT:   %impl.elem0.loc9_50.2 => constants.%impl.elem0.db8
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.b55
+// CHECK:STDOUT:   %require_complete.loc9_44 => constants.%require_complete.1e1
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.5c8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z(constants.%C) {
 // CHECK:STDOUT:   %T.loc3_13.1 => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Z.type => constants.%Z.type.049
-// CHECK:STDOUT:   %Self.2 => constants.%Self.a38
+// CHECK:STDOUT:   %Z.type => constants.%Z.type.e64
+// CHECK:STDOUT:   %Self.2 => constants.%Self.10d
 // CHECK:STDOUT:   %Z.assoc_type => constants.%Z.assoc_type.252
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.ea4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.eb4) {}
+// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.634) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.Z.impl.62c(constants.%T.8b3) {
+// CHECK:STDOUT: specific @T.as.Z.impl.26f(constants.%T.8b3) {
 // CHECK:STDOUT:   %T.loc11_20.2 => constants.%T.8b3
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.692
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.202
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.093
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.b91
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.963
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.e2a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @F(constants.%T.62d) {
-// CHECK:STDOUT:   %T.loc13_6.1 => constants.%T.62d
+// CHECK:STDOUT: specific @F(constants.%T.f93) {
+// CHECK:STDOUT:   %T.loc13_6.1 => constants.%T.f93
 // CHECK:STDOUT:   %T.as_type.loc13_19.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.d8b
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a02
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.Z.impl.62c(constants.%T.as_type) {
+// CHECK:STDOUT: specific @T.as.Z.impl.26f(constants.%T.as_type) {
 // CHECK:STDOUT:   %T.loc11_20.2 => constants.%T.as_type
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.272
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.915
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.7c2
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.ab3
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.beb
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.2e4
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.2aa) {}
+// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.fcf) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_nonfinal_specialized_symbolic_rewrite.carbon
 // CHECK:STDOUT:
@@ -458,12 +458,12 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %Z.type.9fb: type = generic_interface_type @Z [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Z.generic: %Z.type.9fb = struct_value () [concrete]
-// CHECK:STDOUT:   %Z.type.a61: type = facet_type <@Z, @Z(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.2bc: %Z.type.a61 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Z.type.479: type = facet_type <@Z, @Z(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.e37: %Z.type.479 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type.26e: type = assoc_entity_type @Z, @Z(%T.8b3) [symbolic]
 // CHECK:STDOUT:   %assoc0.1cd: %Z.assoc_type.26e = assoc_entity element0, @Z.%X [symbolic]
 // CHECK:STDOUT:   %Y.type: type = facet_type <@Y> [concrete]
-// CHECK:STDOUT:   %Self.b29: %Y.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.33b: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -475,53 +475,53 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %S: type = bind_symbolic_name S, 1 [symbolic]
-// CHECK:STDOUT:   %Z.type.8e9: type = facet_type <@Z, @Z(%S)> [symbolic]
-// CHECK:STDOUT:   %.Self.eb1: %Z.type.8e9 = bind_symbolic_name .Self [symbolic]
-// CHECK:STDOUT:   %Self.831: %Z.type.8e9 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Z.type.c8d: type = facet_type <@Z, @Z(%S)> [symbolic]
+// CHECK:STDOUT:   %.Self.b93: %Z.type.c8d = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %Self.dd2: %Z.type.c8d = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type.0e7: type = assoc_entity_type @Z, @Z(%S) [symbolic]
 // CHECK:STDOUT:   %assoc0.abb: %Z.assoc_type.0e7 = assoc_entity element0, @Z.%X [symbolic]
-// CHECK:STDOUT:   %require_complete.b87: <witness> = require_complete_type %Z.type.8e9 [symbolic]
-// CHECK:STDOUT:   %.Self.as_type.ffd: type = facet_access_type %.Self.eb1 [symbolic]
-// CHECK:STDOUT:   %Z.lookup_impl_witness.597: <witness> = lookup_impl_witness %.Self.eb1, @Z, @Z(%S) [symbolic]
-// CHECK:STDOUT:   %Z.facet.4f7: %Z.type.8e9 = facet_value %.Self.as_type.ffd, (%Z.lookup_impl_witness.597) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.240: type = impl_witness_access %Z.lookup_impl_witness.597, element0 [symbolic]
-// CHECK:STDOUT:   %Z_where.type.80d: type = facet_type <@Z, @Z(%S) where %impl.elem0.240 = %empty_tuple.type> [symbolic]
-// CHECK:STDOUT:   %require_complete.9ea: <witness> = require_complete_type %Z_where.type.80d [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.d59: <witness> = impl_witness file.%Z.impl_witness_table.loc10, @T.as.Z.impl.119(%T.8b3, %S) [symbolic]
-// CHECK:STDOUT:   %Z.type.049: type = facet_type <@Z, @Z(%C)> [concrete]
-// CHECK:STDOUT:   %.Self.3c5: %Z.type.049 = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %Self.a38: %Z.type.049 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %require_complete.499: <witness> = require_complete_type %Z.type.c8d [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.8ac: type = facet_access_type %.Self.b93 [symbolic]
+// CHECK:STDOUT:   %Z.lookup_impl_witness.868: <witness> = lookup_impl_witness %.Self.b93, @Z, @Z(%S) [symbolic]
+// CHECK:STDOUT:   %Z.facet.534: %Z.type.c8d = facet_value %.Self.as_type.8ac, (%Z.lookup_impl_witness.868) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.db8: type = impl_witness_access %Z.lookup_impl_witness.868, element0 [symbolic]
+// CHECK:STDOUT:   %Z_where.type.b55: type = facet_type <@Z, @Z(%S) where %impl.elem0.db8 = %empty_tuple.type> [symbolic]
+// CHECK:STDOUT:   %require_complete.1e1: <witness> = require_complete_type %Z_where.type.b55 [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.5c8: <witness> = impl_witness file.%Z.impl_witness_table.loc10, @T.as.Z.impl.3cf(%T.8b3, %S) [symbolic]
+// CHECK:STDOUT:   %Z.type.e64: type = facet_type <@Z, @Z(%C)> [concrete]
+// CHECK:STDOUT:   %.Self.060: %Z.type.e64 = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Self.10d: %Z.type.e64 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type.252: type = assoc_entity_type @Z, @Z(%C) [concrete]
 // CHECK:STDOUT:   %assoc0.ea4: %Z.assoc_type.252 = assoc_entity element0, @Z.%X [concrete]
-// CHECK:STDOUT:   %.Self.as_type.c3c: type = facet_access_type %.Self.3c5 [symbolic_self]
-// CHECK:STDOUT:   %Z.lookup_impl_witness.9cc: <witness> = lookup_impl_witness %.Self.3c5, @Z, @Z(%C) [symbolic_self]
-// CHECK:STDOUT:   %Z.facet.eb4: %Z.type.049 = facet_value %.Self.as_type.c3c, (%Z.lookup_impl_witness.9cc) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.e29: type = impl_witness_access %Z.lookup_impl_witness.9cc, element0 [symbolic_self]
-// CHECK:STDOUT:   %Z_where.type.692: type = facet_type <@Z, @Z(%C) where %impl.elem0.e29 = %T.8b3> [symbolic]
-// CHECK:STDOUT:   %require_complete.202: <witness> = require_complete_type %Z_where.type.692 [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.093: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @T.as.Z.impl.62c(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %T.62d: %Z.type.049 = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.c1f: type = pattern_type %Z.type.049 [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.62d [symbolic]
-// CHECK:STDOUT:   %pattern_type.d8b: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.ddb: type = facet_access_type %.Self.060 [symbolic_self]
+// CHECK:STDOUT:   %Z.lookup_impl_witness.4bf: <witness> = lookup_impl_witness %.Self.060, @Z, @Z(%C) [symbolic_self]
+// CHECK:STDOUT:   %Z.facet.634: %Z.type.e64 = facet_value %.Self.as_type.ddb, (%Z.lookup_impl_witness.4bf) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.2a3: type = impl_witness_access %Z.lookup_impl_witness.4bf, element0 [symbolic_self]
+// CHECK:STDOUT:   %Z_where.type.b91: type = facet_type <@Z, @Z(%C) where %impl.elem0.2a3 = %T.8b3> [symbolic]
+// CHECK:STDOUT:   %require_complete.963: <witness> = require_complete_type %Z_where.type.b91 [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.e2a: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @T.as.Z.impl.26f(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %T.f93: %Z.type.e64 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.80b: type = pattern_type %Z.type.e64 [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.f93 [symbolic]
+// CHECK:STDOUT:   %pattern_type.a02: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.2b1: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %Z.lookup_impl_witness.103: <witness> = lookup_impl_witness %T.62d, @Z, @Z(%C) [symbolic]
-// CHECK:STDOUT:   %Z.facet.5a7: %Z.type.049 = facet_value %T.as_type, (%Z.lookup_impl_witness.103) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.284: type = impl_witness_access %Z.lookup_impl_witness.103, element0 [symbolic]
-// CHECK:STDOUT:   %require_complete.3ef: <witness> = require_complete_type %impl.elem0.284 [symbolic]
-// CHECK:STDOUT:   %pattern_type.722: type = pattern_type %impl.elem0.284 [symbolic]
+// CHECK:STDOUT:   %require_complete.ce2: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %Z.lookup_impl_witness.fc5: <witness> = lookup_impl_witness %T.f93, @Z, @Z(%C) [symbolic]
+// CHECK:STDOUT:   %Z.facet.7c0: %Z.type.e64 = facet_value %T.as_type, (%Z.lookup_impl_witness.fc5) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.5c4: type = impl_witness_access %Z.lookup_impl_witness.fc5, element0 [symbolic]
+// CHECK:STDOUT:   %require_complete.88d: <witness> = require_complete_type %impl.elem0.5c4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.690: type = pattern_type %impl.elem0.5c4 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.275: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42e: %ImplicitAs.Convert.type.275 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.199: type = facet_type <@ImplicitAs, @ImplicitAs(%impl.elem0.284)> [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type.bd9: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%impl.elem0.284) [symbolic]
-// CHECK:STDOUT:   %assoc0.428: %ImplicitAs.assoc_type.bd9 = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
-// CHECK:STDOUT:   %require_complete.3ca: <witness> = require_complete_type %ImplicitAs.type.199 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.299: type = facet_type <@ImplicitAs, @ImplicitAs(%impl.elem0.5c4)> [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type.455: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%impl.elem0.5c4) [symbolic]
+// CHECK:STDOUT:   %assoc0.d41: %ImplicitAs.assoc_type.455 = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
+// CHECK:STDOUT:   %require_complete.ed3: <witness> = require_complete_type %ImplicitAs.type.299 [symbolic]
 // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -556,25 +556,25 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Y.decl: type = interface_decl @Y [concrete = constants.%Y.type] {} {}
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
-// CHECK:STDOUT:   impl_decl @T.as.Z.impl.119 [concrete] {
+// CHECK:STDOUT:   impl_decl @T.as.Z.impl.3cf [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:     %S.patt: %pattern_type.98f = symbolic_binding_pattern S, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc10_14.1 [symbolic = %T.loc10_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:     %Z.ref: %Z.type.9fb = name_ref Z, file.%Z.decl [concrete = constants.%Z.generic]
 // CHECK:STDOUT:     %S.ref: type = name_ref S, %S.loc10_24.1 [symbolic = %S.loc10_24.2 (constants.%S)]
-// CHECK:STDOUT:     %Z.type.loc10_42.1: type = facet_type <@Z, @Z(constants.%S)> [symbolic = %Z.type.loc10_42.2 (constants.%Z.type.8e9)]
-// CHECK:STDOUT:     %.Self.1: @T.as.Z.impl.119.%Z.type.loc10_42.2 (%Z.type.8e9) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.eb1)]
-// CHECK:STDOUT:     %.Self.ref: @T.as.Z.impl.119.%Z.type.loc10_42.2 (%Z.type.8e9) = name_ref .Self, %.Self.1 [symbolic = %.Self.4 (constants.%.Self.eb1)]
-// CHECK:STDOUT:     %.loc10_50.1: @T.as.Z.impl.119.%Z.assoc_type (%Z.assoc_type.0e7) = specific_constant @X.%assoc0, @Z(constants.%S) [symbolic = %assoc0 (constants.%assoc0.abb)]
-// CHECK:STDOUT:     %X.ref: @T.as.Z.impl.119.%Z.assoc_type (%Z.assoc_type.0e7) = name_ref X, %.loc10_50.1 [symbolic = %assoc0 (constants.%assoc0.abb)]
-// CHECK:STDOUT:     %.Self.as_type.loc10_50.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc10_50.2 (constants.%.Self.as_type.ffd)]
-// CHECK:STDOUT:     %.loc10_50.2: type = converted %.Self.ref, %.Self.as_type.loc10_50.1 [symbolic = %.Self.as_type.loc10_50.2 (constants.%.Self.as_type.ffd)]
-// CHECK:STDOUT:     %impl.elem0.loc10_50.1: type = impl_witness_access constants.%Z.lookup_impl_witness.597, element0 [symbolic = %impl.elem0.loc10_50.2 (constants.%impl.elem0.240)]
+// CHECK:STDOUT:     %Z.type.loc10_42.1: type = facet_type <@Z, @Z(constants.%S)> [symbolic = %Z.type.loc10_42.2 (constants.%Z.type.c8d)]
+// CHECK:STDOUT:     %.Self.1: @T.as.Z.impl.3cf.%Z.type.loc10_42.2 (%Z.type.c8d) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.b93)]
+// CHECK:STDOUT:     %.Self.ref: @T.as.Z.impl.3cf.%Z.type.loc10_42.2 (%Z.type.c8d) = name_ref .Self, %.Self.1 [symbolic = %.Self.4 (constants.%.Self.b93)]
+// CHECK:STDOUT:     %.loc10_50.1: @T.as.Z.impl.3cf.%Z.assoc_type (%Z.assoc_type.0e7) = specific_constant @X.%assoc0, @Z(constants.%S) [symbolic = %assoc0 (constants.%assoc0.abb)]
+// CHECK:STDOUT:     %X.ref: @T.as.Z.impl.3cf.%Z.assoc_type (%Z.assoc_type.0e7) = name_ref X, %.loc10_50.1 [symbolic = %assoc0 (constants.%assoc0.abb)]
+// CHECK:STDOUT:     %.Self.as_type.loc10_50.1: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc10_50.2 (constants.%.Self.as_type.8ac)]
+// CHECK:STDOUT:     %.loc10_50.2: type = converted %.Self.ref, %.Self.as_type.loc10_50.1 [symbolic = %.Self.as_type.loc10_50.2 (constants.%.Self.as_type.8ac)]
+// CHECK:STDOUT:     %impl.elem0.loc10_50.1: type = impl_witness_access constants.%Z.lookup_impl_witness.868, element0 [symbolic = %impl.elem0.loc10_50.2 (constants.%impl.elem0.db8)]
 // CHECK:STDOUT:     %.loc10_56.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc10_56.2: type = converted %.loc10_56.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %.loc10_44: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.80d)] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.8e9
+// CHECK:STDOUT:     %.loc10_44: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.b55)] {
+// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.c8d
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0.loc10_50.1, %.loc10_56.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
@@ -582,49 +582,49 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %.Self.3: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:     %S.loc10_24.1: type = bind_symbolic_name S, 1 [symbolic = %S.loc10_24.2 (constants.%S)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Z.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10), @T.as.Z.impl.119 [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc10: <witness> = impl_witness %Z.impl_witness_table.loc10, @T.as.Z.impl.119(constants.%T.8b3, constants.%S) [symbolic = @T.as.Z.impl.119.%Z.impl_witness (constants.%Z.impl_witness.d59)]
+// CHECK:STDOUT:   %Z.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10), @T.as.Z.impl.3cf [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.loc10: <witness> = impl_witness %Z.impl_witness_table.loc10, @T.as.Z.impl.3cf(constants.%T.8b3, constants.%S) [symbolic = @T.as.Z.impl.3cf.%Z.impl_witness (constants.%Z.impl_witness.5c8)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc10: type = impl_witness_assoc_constant constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:   impl_decl @T.as.Z.impl.62c [concrete] {
+// CHECK:STDOUT:   impl_decl @T.as.Z.impl.26f [concrete] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc12_24: type = name_ref T, %T.loc12_14.1 [symbolic = %T.loc12_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:     %Z.ref: %Z.type.9fb = name_ref Z, file.%Z.decl [concrete = constants.%Z.generic]
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.049]
-// CHECK:STDOUT:     %.Self.1: %Z.type.049 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.3c5]
-// CHECK:STDOUT:     %.Self.ref: %Z.type.049 = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.3c5]
+// CHECK:STDOUT:     %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.e64]
+// CHECK:STDOUT:     %.Self.1: %Z.type.e64 = bind_symbolic_name .Self [symbolic_self = constants.%.Self.060]
+// CHECK:STDOUT:     %.Self.ref: %Z.type.e64 = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.060]
 // CHECK:STDOUT:     %.loc12_40.1: %Z.assoc_type.252 = specific_constant @X.%assoc0, @Z(constants.%C) [concrete = constants.%assoc0.ea4]
 // CHECK:STDOUT:     %X.ref: %Z.assoc_type.252 = name_ref X, %.loc12_40.1 [concrete = constants.%assoc0.ea4]
-// CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.c3c]
-// CHECK:STDOUT:     %.loc12_40.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.c3c]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Z.lookup_impl_witness.9cc, element0 [symbolic_self = constants.%impl.elem0.e29]
+// CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.ddb]
+// CHECK:STDOUT:     %.loc12_40.2: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.ddb]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Z.lookup_impl_witness.4bf, element0 [symbolic_self = constants.%impl.elem0.2a3]
 // CHECK:STDOUT:     %T.ref.loc12_45: type = name_ref T, %T.loc12_14.1 [symbolic = %T.loc12_14.2 (constants.%T.8b3)]
-// CHECK:STDOUT:     %.loc12_34: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.692)] {
-// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.049
+// CHECK:STDOUT:     %.loc12_34: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.b91)] {
+// CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type.e64
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %T.ref.loc12_45
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:     %T.loc12_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Z.impl_witness_table.loc12 = impl_witness_table (%impl_witness_assoc_constant.loc12), @T.as.Z.impl.62c [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.loc12: <witness> = impl_witness %Z.impl_witness_table.loc12, @T.as.Z.impl.62c(constants.%T.8b3) [symbolic = @T.as.Z.impl.62c.%Z.impl_witness (constants.%Z.impl_witness.093)]
-// CHECK:STDOUT:   %impl_witness_assoc_constant.loc12: type = impl_witness_assoc_constant constants.%T.8b3 [symbolic = @T.as.Z.impl.62c.%T.loc12_14.2 (constants.%T.8b3)]
+// CHECK:STDOUT:   %Z.impl_witness_table.loc12 = impl_witness_table (%impl_witness_assoc_constant.loc12), @T.as.Z.impl.26f [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.loc12: <witness> = impl_witness %Z.impl_witness_table.loc12, @T.as.Z.impl.26f(constants.%T.8b3) [symbolic = @T.as.Z.impl.26f.%Z.impl_witness (constants.%Z.impl_witness.e2a)]
+// CHECK:STDOUT:   %impl_witness_assoc_constant.loc12: type = impl_witness_assoc_constant constants.%T.8b3 [symbolic = @T.as.Z.impl.26f.%T.loc12_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.c1f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @F.%pattern_type.loc14 (%pattern_type.d8b) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type.loc14 (%pattern_type.d8b) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.80b = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @F.%pattern_type.loc14 (%pattern_type.a02) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type.loc14 (%pattern_type.a02) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc14_13: type = splice_block %Z.type [concrete = constants.%Z.type.049] {
+// CHECK:STDOUT:     %.loc14_13: type = splice_block %Z.type [concrete = constants.%Z.type.e64] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %Z.ref: %Z.type.9fb = name_ref Z, file.%Z.decl [concrete = constants.%Z.generic]
 // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:       %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.049]
+// CHECK:STDOUT:       %Z.type: type = facet_type <@Z, @Z(constants.%C)> [concrete = constants.%Z.type.e64]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc14_6.2: %Z.type.049 = bind_symbolic_name T, 0 [symbolic = %T.loc14_6.1 (constants.%T.62d)]
+// CHECK:STDOUT:     %T.loc14_6.2: %Z.type.e64 = bind_symbolic_name T, 0 [symbolic = %T.loc14_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:     %t.param: @F.%T.as_type.loc14_19.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc14_19.1: type = splice_block %.loc14_19.2 [symbolic = %T.as_type.loc14_19.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc14: %Z.type.049 = name_ref T, %T.loc14_6.2 [symbolic = %T.loc14_6.1 (constants.%T.62d)]
+// CHECK:STDOUT:       %T.ref.loc14: %Z.type.e64 = name_ref T, %T.loc14_6.2 [symbolic = %T.loc14_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:       %T.as_type.loc14_19.2: type = facet_access_type %T.ref.loc14 [symbolic = %T.as_type.loc14_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc14_19.2: type = converted %T.ref.loc14, %T.as_type.loc14_19.2 [symbolic = %T.as_type.loc14_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
@@ -636,13 +636,13 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %T.loc3_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc3_13.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Z.type: type = facet_type <@Z, @Z(%T.loc3_13.1)> [symbolic = %Z.type (constants.%Z.type.a61)]
-// CHECK:STDOUT:   %Self.2: @Z.%Z.type (%Z.type.a61) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2bc)]
+// CHECK:STDOUT:   %Z.type: type = facet_type <@Z, @Z(%T.loc3_13.1)> [symbolic = %Z.type (constants.%Z.type.479)]
+// CHECK:STDOUT:   %Self.2: @Z.%Z.type (%Z.type.479) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.e37)]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z, @Z(%T.loc3_13.1) [symbolic = %Z.assoc_type (constants.%Z.assoc_type.26e)]
 // CHECK:STDOUT:   %assoc0: @Z.%Z.assoc_type (%Z.assoc_type.26e) = assoc_entity element0, %X [symbolic = %assoc0 (constants.%assoc0.1cd)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Z.%Z.type (%Z.type.a61) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2bc)]
+// CHECK:STDOUT:     %Self.1: @Z.%Z.type (%Z.type.479) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.e37)]
 // CHECK:STDOUT:     %X: type = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:       %assoc0: @Z.%Z.assoc_type (%Z.assoc_type.26e) = assoc_entity element0, @Z.%X [symbolic = @Z.%assoc0 (constants.%assoc0.1cd)]
 // CHECK:STDOUT:     }
@@ -655,14 +655,14 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Y {
-// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b29]
+// CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.33b]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @X(@Z.%T.loc3_13.2: type, @Z.%Self.1: @Z.%Z.type (%Z.type.a61)) {
+// CHECK:STDOUT: generic assoc_const @X(@Z.%T.loc3_13.2: type, @Z.%Self.1: @Z.%Z.type (%Z.type.479)) {
 // CHECK:STDOUT:   assoc_const X:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -682,20 +682,20 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   witness = @C.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as.Z.impl.119(%T.loc10_14.1: type, %S.loc10_24.1: type) {
+// CHECK:STDOUT: generic impl @T.as.Z.impl.3cf(%T.loc10_14.1: type, %S.loc10_24.1: type) {
 // CHECK:STDOUT:   %T.loc10_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc10_14.2 (constants.%T.8b3)]
 // CHECK:STDOUT:   %S.loc10_24.2: type = bind_symbolic_name S, 1 [symbolic = %S.loc10_24.2 (constants.%S)]
-// CHECK:STDOUT:   %Z.type.loc10_42.2: type = facet_type <@Z, @Z(%S.loc10_24.2)> [symbolic = %Z.type.loc10_42.2 (constants.%Z.type.8e9)]
-// CHECK:STDOUT:   %.Self.4: @T.as.Z.impl.119.%Z.type.loc10_42.2 (%Z.type.8e9) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.eb1)]
-// CHECK:STDOUT:   %require_complete.loc10_50: <witness> = require_complete_type %Z.type.loc10_42.2 [symbolic = %require_complete.loc10_50 (constants.%require_complete.b87)]
+// CHECK:STDOUT:   %Z.type.loc10_42.2: type = facet_type <@Z, @Z(%S.loc10_24.2)> [symbolic = %Z.type.loc10_42.2 (constants.%Z.type.c8d)]
+// CHECK:STDOUT:   %.Self.4: @T.as.Z.impl.3cf.%Z.type.loc10_42.2 (%Z.type.c8d) = bind_symbolic_name .Self [symbolic = %.Self.4 (constants.%.Self.b93)]
+// CHECK:STDOUT:   %require_complete.loc10_50: <witness> = require_complete_type %Z.type.loc10_42.2 [symbolic = %require_complete.loc10_50 (constants.%require_complete.499)]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z, @Z(%S.loc10_24.2) [symbolic = %Z.assoc_type (constants.%Z.assoc_type.0e7)]
-// CHECK:STDOUT:   %assoc0: @T.as.Z.impl.119.%Z.assoc_type (%Z.assoc_type.0e7) = assoc_entity element0, @Z.%X [symbolic = %assoc0 (constants.%assoc0.abb)]
-// CHECK:STDOUT:   %.Self.as_type.loc10_50.2: type = facet_access_type %.Self.4 [symbolic = %.Self.as_type.loc10_50.2 (constants.%.Self.as_type.ffd)]
-// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.4, @Z, @Z(%S.loc10_24.2) [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness.597)]
-// CHECK:STDOUT:   %impl.elem0.loc10_50.2: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_50.2 (constants.%impl.elem0.240)]
-// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(%S.loc10_24.2) where %impl.elem0.loc10_50.2 = constants.%empty_tuple.type> [symbolic = %Z_where.type (constants.%Z_where.type.80d)]
-// CHECK:STDOUT:   %require_complete.loc10_44: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete.loc10_44 (constants.%require_complete.9ea)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc10, @T.as.Z.impl.119(%T.loc10_14.2, %S.loc10_24.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.d59)]
+// CHECK:STDOUT:   %assoc0: @T.as.Z.impl.3cf.%Z.assoc_type (%Z.assoc_type.0e7) = assoc_entity element0, @Z.%X [symbolic = %assoc0 (constants.%assoc0.abb)]
+// CHECK:STDOUT:   %.Self.as_type.loc10_50.2: type = facet_access_type %.Self.4 [symbolic = %.Self.as_type.loc10_50.2 (constants.%.Self.as_type.8ac)]
+// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.4, @Z, @Z(%S.loc10_24.2) [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness.868)]
+// CHECK:STDOUT:   %impl.elem0.loc10_50.2: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_50.2 (constants.%impl.elem0.db8)]
+// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(%S.loc10_24.2) where %impl.elem0.loc10_50.2 = constants.%empty_tuple.type> [symbolic = %Z_where.type (constants.%Z_where.type.b55)]
+// CHECK:STDOUT:   %require_complete.loc10_44: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete.loc10_44 (constants.%require_complete.1e1)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc10, @T.as.Z.impl.3cf(%T.loc10_14.2, %S.loc10_24.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.5c8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -705,11 +705,11 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic impl @T.as.Z.impl.62c(%T.loc12_14.1: type) {
+// CHECK:STDOUT: generic impl @T.as.Z.impl.26f(%T.loc12_14.1: type) {
 // CHECK:STDOUT:   %T.loc12_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc12_14.2 (constants.%T.8b3)]
-// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(constants.%C) where constants.%impl.elem0.e29 = %T.loc12_14.2> [symbolic = %Z_where.type (constants.%Z_where.type.692)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete (constants.%require_complete.202)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @T.as.Z.impl.62c(%T.loc12_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.093)]
+// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z, @Z(constants.%C) where constants.%impl.elem0.2a3 = %T.loc12_14.2> [symbolic = %Z_where.type (constants.%Z_where.type.b91)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete (constants.%require_complete.963)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table.loc12, @T.as.Z.impl.26f(%T.loc12_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.e2a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -733,41 +733,41 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @F(%T.loc14_6.2: %Z.type.049) {
-// CHECK:STDOUT:   %T.loc14_6.1: %Z.type.049 = bind_symbolic_name T, 0 [symbolic = %T.loc14_6.1 (constants.%T.62d)]
+// CHECK:STDOUT: generic fn @F(%T.loc14_6.2: %Z.type.e64) {
+// CHECK:STDOUT:   %T.loc14_6.1: %Z.type.e64 = bind_symbolic_name T, 0 [symbolic = %T.loc14_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:   %T.as_type.loc14_19.1: type = facet_access_type %T.loc14_6.1 [symbolic = %T.as_type.loc14_19.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc14: type = pattern_type %T.as_type.loc14_19.1 [symbolic = %pattern_type.loc14 (constants.%pattern_type.d8b)]
+// CHECK:STDOUT:   %pattern_type.loc14: type = pattern_type %T.as_type.loc14_19.1 [symbolic = %pattern_type.loc14 (constants.%pattern_type.a02)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc14: <witness> = require_complete_type %T.as_type.loc14_19.1 [symbolic = %require_complete.loc14 (constants.%require_complete.2b1)]
-// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc14_6.1, @Z, @Z(constants.%C) [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness.103)]
-// CHECK:STDOUT:   %impl.elem0.loc22_11.2: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc22_11.2 (constants.%impl.elem0.284)]
-// CHECK:STDOUT:   %require_complete.loc22_11: <witness> = require_complete_type %impl.elem0.loc22_11.2 [symbolic = %require_complete.loc22_11 (constants.%require_complete.3ef)]
-// CHECK:STDOUT:   %pattern_type.loc22: type = pattern_type %impl.elem0.loc22_11.2 [symbolic = %pattern_type.loc22 (constants.%pattern_type.722)]
-// CHECK:STDOUT:   %ImplicitAs.type.loc22_16.2: type = facet_type <@ImplicitAs, @ImplicitAs(%impl.elem0.loc22_11.2)> [symbolic = %ImplicitAs.type.loc22_16.2 (constants.%ImplicitAs.type.199)]
-// CHECK:STDOUT:   %require_complete.loc22_16: <witness> = require_complete_type %ImplicitAs.type.loc22_16.2 [symbolic = %require_complete.loc22_16 (constants.%require_complete.3ca)]
-// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%impl.elem0.loc22_11.2) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.bd9)]
-// CHECK:STDOUT:   %assoc0: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.bd9) = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic = %assoc0 (constants.%assoc0.428)]
+// CHECK:STDOUT:   %require_complete.loc14: <witness> = require_complete_type %T.as_type.loc14_19.1 [symbolic = %require_complete.loc14 (constants.%require_complete.ce2)]
+// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc14_6.1, @Z, @Z(constants.%C) [symbolic = %Z.lookup_impl_witness (constants.%Z.lookup_impl_witness.fc5)]
+// CHECK:STDOUT:   %impl.elem0.loc22_11.2: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc22_11.2 (constants.%impl.elem0.5c4)]
+// CHECK:STDOUT:   %require_complete.loc22_11: <witness> = require_complete_type %impl.elem0.loc22_11.2 [symbolic = %require_complete.loc22_11 (constants.%require_complete.88d)]
+// CHECK:STDOUT:   %pattern_type.loc22: type = pattern_type %impl.elem0.loc22_11.2 [symbolic = %pattern_type.loc22 (constants.%pattern_type.690)]
+// CHECK:STDOUT:   %ImplicitAs.type.loc22_16.2: type = facet_type <@ImplicitAs, @ImplicitAs(%impl.elem0.loc22_11.2)> [symbolic = %ImplicitAs.type.loc22_16.2 (constants.%ImplicitAs.type.299)]
+// CHECK:STDOUT:   %require_complete.loc22_16: <witness> = require_complete_type %ImplicitAs.type.loc22_16.2 [symbolic = %require_complete.loc22_16 (constants.%require_complete.ed3)]
+// CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%impl.elem0.loc22_11.2) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type.455)]
+// CHECK:STDOUT:   %assoc0: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.455) = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic = %assoc0 (constants.%assoc0.d41)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc14_19.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     name_binding_decl {
-// CHECK:STDOUT:       %a.patt: @F.%pattern_type.loc22 (%pattern_type.722) = binding_pattern a [concrete]
+// CHECK:STDOUT:       %a.patt: @F.%pattern_type.loc22 (%pattern_type.690) = binding_pattern a [concrete]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t.ref: @F.%T.as_type.loc14_19.1 (%T.as_type) = name_ref t, %t
-// CHECK:STDOUT:     %.loc22_11.1: type = splice_block %impl.elem0.loc22_11.1 [symbolic = %impl.elem0.loc22_11.2 (constants.%impl.elem0.284)] {
-// CHECK:STDOUT:       %T.ref.loc22: %Z.type.049 = name_ref T, %T.loc14_6.2 [symbolic = %T.loc14_6.1 (constants.%T.62d)]
+// CHECK:STDOUT:     %.loc22_11.1: type = splice_block %impl.elem0.loc22_11.1 [symbolic = %impl.elem0.loc22_11.2 (constants.%impl.elem0.5c4)] {
+// CHECK:STDOUT:       %T.ref.loc22: %Z.type.e64 = name_ref T, %T.loc14_6.2 [symbolic = %T.loc14_6.1 (constants.%T.f93)]
 // CHECK:STDOUT:       %.loc22_11.2: %Z.assoc_type.252 = specific_constant @X.%assoc0, @Z(constants.%C) [concrete = constants.%assoc0.ea4]
 // CHECK:STDOUT:       %X.ref: %Z.assoc_type.252 = name_ref X, %.loc22_11.2 [concrete = constants.%assoc0.ea4]
 // CHECK:STDOUT:       %T.as_type.loc22: type = facet_access_type %T.ref.loc22 [symbolic = %T.as_type.loc14_19.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc22_11.3: type = converted %T.ref.loc22, %T.as_type.loc22 [symbolic = %T.as_type.loc14_19.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %impl.elem0.loc22_11.1: type = impl_witness_access constants.%Z.lookup_impl_witness.103, element0 [symbolic = %impl.elem0.loc22_11.2 (constants.%impl.elem0.284)]
+// CHECK:STDOUT:       %impl.elem0.loc22_11.1: type = impl_witness_access constants.%Z.lookup_impl_witness.fc5, element0 [symbolic = %impl.elem0.loc22_11.2 (constants.%impl.elem0.5c4)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %ImplicitAs.type.loc22_16.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%impl.elem0.284)> [symbolic = %ImplicitAs.type.loc22_16.2 (constants.%ImplicitAs.type.199)]
-// CHECK:STDOUT:     %.loc22_16.1: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.bd9) = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%impl.elem0.284) [symbolic = %assoc0 (constants.%assoc0.428)]
-// CHECK:STDOUT:     %Convert.ref: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.bd9) = name_ref Convert, %.loc22_16.1 [symbolic = %assoc0 (constants.%assoc0.428)]
-// CHECK:STDOUT:     %.loc22_16.2: @F.%impl.elem0.loc22_11.2 (%impl.elem0.284) = converted %t.ref, <error> [concrete = <error>]
-// CHECK:STDOUT:     %a: @F.%impl.elem0.loc22_11.2 (%impl.elem0.284) = bind_name a, <error> [concrete = <error>]
+// CHECK:STDOUT:     %ImplicitAs.type.loc22_16.1: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%impl.elem0.5c4)> [symbolic = %ImplicitAs.type.loc22_16.2 (constants.%ImplicitAs.type.299)]
+// CHECK:STDOUT:     %.loc22_16.1: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.455) = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%impl.elem0.5c4) [symbolic = %assoc0 (constants.%assoc0.d41)]
+// CHECK:STDOUT:     %Convert.ref: @F.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.455) = name_ref Convert, %.loc22_16.1 [symbolic = %assoc0 (constants.%assoc0.d41)]
+// CHECK:STDOUT:     %.loc22_16.2: @F.%impl.elem0.loc22_11.2 (%impl.elem0.5c4) = converted %t.ref, <error> [concrete = <error>]
+// CHECK:STDOUT:     %a: @F.%impl.elem0.loc22_11.2 (%impl.elem0.5c4) = bind_name a, <error> [concrete = <error>]
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -776,62 +776,62 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %T.loc3_13.1 => constants.%T.8b3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%T.8b3, constants.%Self.2bc) {}
+// CHECK:STDOUT: specific @X(constants.%T.8b3, constants.%Self.e37) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z(constants.%S) {
 // CHECK:STDOUT:   %T.loc3_13.1 => constants.%S
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Z.type => constants.%Z.type.8e9
-// CHECK:STDOUT:   %Self.2 => constants.%Self.831
+// CHECK:STDOUT:   %Z.type => constants.%Z.type.c8d
+// CHECK:STDOUT:   %Self.2 => constants.%Self.dd2
 // CHECK:STDOUT:   %Z.assoc_type => constants.%Z.assoc_type.0e7
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.abb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%S, constants.%Z.facet.4f7) {}
+// CHECK:STDOUT: specific @X(constants.%S, constants.%Z.facet.534) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.Z.impl.119(constants.%T.8b3, constants.%S) {
+// CHECK:STDOUT: specific @T.as.Z.impl.3cf(constants.%T.8b3, constants.%S) {
 // CHECK:STDOUT:   %T.loc10_14.2 => constants.%T.8b3
 // CHECK:STDOUT:   %S.loc10_24.2 => constants.%S
-// CHECK:STDOUT:   %Z.type.loc10_42.2 => constants.%Z.type.8e9
-// CHECK:STDOUT:   %.Self.4 => constants.%.Self.eb1
-// CHECK:STDOUT:   %require_complete.loc10_50 => constants.%require_complete.b87
+// CHECK:STDOUT:   %Z.type.loc10_42.2 => constants.%Z.type.c8d
+// CHECK:STDOUT:   %.Self.4 => constants.%.Self.b93
+// CHECK:STDOUT:   %require_complete.loc10_50 => constants.%require_complete.499
 // CHECK:STDOUT:   %Z.assoc_type => constants.%Z.assoc_type.0e7
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.abb
-// CHECK:STDOUT:   %.Self.as_type.loc10_50.2 => constants.%.Self.as_type.ffd
-// CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.lookup_impl_witness.597
-// CHECK:STDOUT:   %impl.elem0.loc10_50.2 => constants.%impl.elem0.240
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.80d
-// CHECK:STDOUT:   %require_complete.loc10_44 => constants.%require_complete.9ea
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.d59
+// CHECK:STDOUT:   %.Self.as_type.loc10_50.2 => constants.%.Self.as_type.8ac
+// CHECK:STDOUT:   %Z.lookup_impl_witness => constants.%Z.lookup_impl_witness.868
+// CHECK:STDOUT:   %impl.elem0.loc10_50.2 => constants.%impl.elem0.db8
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.b55
+// CHECK:STDOUT:   %require_complete.loc10_44 => constants.%require_complete.1e1
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.5c8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Z(constants.%C) {
 // CHECK:STDOUT:   %T.loc3_13.1 => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Z.type => constants.%Z.type.049
-// CHECK:STDOUT:   %Self.2 => constants.%Self.a38
+// CHECK:STDOUT:   %Z.type => constants.%Z.type.e64
+// CHECK:STDOUT:   %Self.2 => constants.%Self.10d
 // CHECK:STDOUT:   %Z.assoc_type => constants.%Z.assoc_type.252
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.ea4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.eb4) {}
+// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.634) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.as.Z.impl.62c(constants.%T.8b3) {
+// CHECK:STDOUT: specific @T.as.Z.impl.26f(constants.%T.8b3) {
 // CHECK:STDOUT:   %T.loc12_14.2 => constants.%T.8b3
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.692
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.202
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.093
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.b91
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.963
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.e2a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @F(constants.%T.62d) {
-// CHECK:STDOUT:   %T.loc14_6.1 => constants.%T.62d
+// CHECK:STDOUT: specific @F(constants.%T.f93) {
+// CHECK:STDOUT:   %T.loc14_6.1 => constants.%T.f93
 // CHECK:STDOUT:   %T.as_type.loc14_19.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc14 => constants.%pattern_type.d8b
+// CHECK:STDOUT:   %pattern_type.loc14 => constants.%pattern_type.a02
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.5a7) {}
+// CHECK:STDOUT: specific @X(constants.%C, constants.%Z.facet.7c0) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- final_impl_rewrite_of_symbolic_through_impl_lookup.carbon
 // CHECK:STDOUT:
@@ -843,22 +843,22 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %.Self.8b4: %Ptr.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.8b4 [symbolic_self]
-// CHECK:STDOUT:   %Ptr.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.8b4, @Ptr [symbolic_self]
-// CHECK:STDOUT:   %Ptr.facet.b6e: %Ptr.type = facet_value %.Self.as_type, (%Ptr.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %.Self.542: %Ptr.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.542 [symbolic_self]
+// CHECK:STDOUT:   %Ptr.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.542, @Ptr [symbolic_self]
+// CHECK:STDOUT:   %Ptr.facet.283: %Ptr.type = facet_value %.Self.as_type, (%Ptr.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %Ptr.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %ptr.79f131.1: type = ptr_type %U [symbolic]
-// CHECK:STDOUT:   %Ptr_where.type.bd48cc.1: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f131.1> [symbolic]
-// CHECK:STDOUT:   %require_complete.465bad.1: <witness> = require_complete_type %Ptr_where.type.bd48cc.1 [symbolic]
-// CHECK:STDOUT:   %Ptr.impl_witness.e8ce81.1: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Ptr_where.type.6e0648.1: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f131.1> [symbolic]
+// CHECK:STDOUT:   %require_complete.7db06c.1: <witness> = require_complete_type %Ptr_where.type.6e0648.1 [symbolic]
+// CHECK:STDOUT:   %Ptr.impl_witness.f78935.1: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U) [symbolic]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %ptr.79f131.2: type = ptr_type %T [symbolic]
-// CHECK:STDOUT:   %Ptr_where.type.bd48cc.2: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f131.2> [symbolic]
-// CHECK:STDOUT:   %require_complete.465bad.2: <witness> = require_complete_type %Ptr_where.type.bd48cc.2 [symbolic]
-// CHECK:STDOUT:   %Ptr.impl_witness.e8ce81.2: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T) [symbolic]
-// CHECK:STDOUT:   %Ptr.facet.bbf: %Ptr.type = facet_value %T, (%Ptr.impl_witness.e8ce81.2) [symbolic]
+// CHECK:STDOUT:   %Ptr_where.type.6e0648.2: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f131.2> [symbolic]
+// CHECK:STDOUT:   %require_complete.7db06c.2: <witness> = require_complete_type %Ptr_where.type.6e0648.2 [symbolic]
+// CHECK:STDOUT:   %Ptr.impl_witness.f78935.2: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Ptr.facet.c9a: %Ptr.type = facet_value %T, (%Ptr.impl_witness.f78935.2) [symbolic]
 // CHECK:STDOUT:   %pattern_type.afe: type = pattern_type %ptr.79f131.2 [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
@@ -886,15 +886,15 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %U.ref.loc7_30: type = name_ref U, %U.loc7_20.1 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:     %Ptr.ref: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
-// CHECK:STDOUT:     %.Self.1: %Ptr.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.8b4]
-// CHECK:STDOUT:     %.Self.ref: %Ptr.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.8b4]
+// CHECK:STDOUT:     %.Self.1: %Ptr.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.542]
+// CHECK:STDOUT:     %.Self.ref: %Ptr.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.542]
 // CHECK:STDOUT:     %Type.ref: %Ptr.assoc_type = name_ref Type, @Type.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc7_45: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %U.ref.loc7_53: type = name_ref U, %U.loc7_20.1 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:     %ptr.loc7_54.1: type = ptr_type %U.ref.loc7_53 [symbolic = %ptr.loc7_54.2 (constants.%ptr.79f131.1)]
-// CHECK:STDOUT:     %.loc7_39: type = where_expr %.Self.1 [symbolic = %Ptr_where.type (constants.%Ptr_where.type.bd48cc.1)] {
+// CHECK:STDOUT:     %.loc7_39: type = where_expr %.Self.1 [symbolic = %Ptr_where.type (constants.%Ptr_where.type.6e0648.1)] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%Ptr.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %ptr.loc7_54.1
 // CHECK:STDOUT:     }
@@ -902,7 +902,7 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %U.loc7_20.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Ptr.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @U.as.Ptr.impl [concrete]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness %Ptr.impl_witness_table, @U.as.Ptr.impl(constants.%U) [symbolic = @U.as.Ptr.impl.%Ptr.impl_witness (constants.%Ptr.impl_witness.e8ce81.1)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness %Ptr.impl_witness_table, @U.as.Ptr.impl(constants.%U) [symbolic = @U.as.Ptr.impl.%Ptr.impl_witness (constants.%Ptr.impl_witness.f78935.1)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%ptr.79f131.1 [symbolic = @U.as.Ptr.impl.%ptr.loc7_54.2 (constants.%ptr.79f131.1)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
@@ -915,9 +915,9 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %T.ref.loc9_29: type = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:     %Ptr.ref: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
 // CHECK:STDOUT:     %Type.ref: %Ptr.assoc_type = name_ref Type, @Type.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:     %Ptr.facet.loc9_30.2: %Ptr.type = facet_value constants.%T, (constants.%Ptr.impl_witness.e8ce81.2) [symbolic = %Ptr.facet.loc9_30.1 (constants.%Ptr.facet.bbf)]
-// CHECK:STDOUT:     %.loc9: %Ptr.type = converted %T.ref.loc9_29, %Ptr.facet.loc9_30.2 [symbolic = %Ptr.facet.loc9_30.1 (constants.%Ptr.facet.bbf)]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.impl_witness.e8ce81.2, element0 [symbolic = %ptr (constants.%ptr.79f131.2)]
+// CHECK:STDOUT:     %Ptr.facet.loc9_30.2: %Ptr.type = facet_value constants.%T, (constants.%Ptr.impl_witness.f78935.2) [symbolic = %Ptr.facet.loc9_30.1 (constants.%Ptr.facet.c9a)]
+// CHECK:STDOUT:     %.loc9: %Ptr.type = converted %T.ref.loc9_29, %Ptr.facet.loc9_30.2 [symbolic = %Ptr.facet.loc9_30.1 (constants.%Ptr.facet.c9a)]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.impl_witness.f78935.2, element0 [symbolic = %ptr (constants.%ptr.79f131.2)]
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:     %T.loc9_6.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:     %t.param: ref @F.%T.loc9_6.1 (%T) = ref_param call_param0
@@ -947,9 +947,9 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: generic impl @U.as.Ptr.impl(%U.loc7_20.1: type) {
 // CHECK:STDOUT:   %U.loc7_20.2: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:   %ptr.loc7_54.2: type = ptr_type %U.loc7_20.2 [symbolic = %ptr.loc7_54.2 (constants.%ptr.79f131.1)]
-// CHECK:STDOUT:   %Ptr_where.type: type = facet_type <@Ptr where constants.%impl.elem0 = %ptr.loc7_54.2> [symbolic = %Ptr_where.type (constants.%Ptr_where.type.bd48cc.1)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Ptr_where.type [symbolic = %require_complete (constants.%require_complete.465bad.1)]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U.loc7_20.2) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.e8ce81.1)]
+// CHECK:STDOUT:   %Ptr_where.type: type = facet_type <@Ptr where constants.%impl.elem0 = %ptr.loc7_54.2> [symbolic = %Ptr_where.type (constants.%Ptr_where.type.6e0648.1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Ptr_where.type [symbolic = %require_complete (constants.%require_complete.7db06c.1)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U.loc7_20.2) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.f78935.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -962,8 +962,8 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: generic fn @F(%T.loc9_6.2: type) {
 // CHECK:STDOUT:   %T.loc9_6.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:   %pattern_type.loc9_20: type = pattern_type %T.loc9_6.1 [symbolic = %pattern_type.loc9_20 (constants.%pattern_type.7dc)]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.loc9_6.1) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.e8ce81.2)]
-// CHECK:STDOUT:   %Ptr.facet.loc9_30.1: %Ptr.type = facet_value %T.loc9_6.1, (%Ptr.impl_witness) [symbolic = %Ptr.facet.loc9_30.1 (constants.%Ptr.facet.bbf)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.loc9_6.1) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.f78935.2)]
+// CHECK:STDOUT:   %Ptr.facet.loc9_30.1: %Ptr.type = facet_value %T.loc9_6.1, (%Ptr.impl_witness) [symbolic = %Ptr.facet.loc9_30.1 (constants.%Ptr.facet.c9a)]
 // CHECK:STDOUT:   %ptr: type = ptr_type %T.loc9_6.1 [symbolic = %ptr (constants.%ptr.79f131.2)]
 // CHECK:STDOUT:   %pattern_type.loc9_26: type = pattern_type %ptr [symbolic = %pattern_type.loc9_26 (constants.%pattern_type.afe)]
 // CHECK:STDOUT:
@@ -981,33 +981,33 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Type(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.b6e) {}
+// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.283) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U.as.Ptr.impl(constants.%U) {
 // CHECK:STDOUT:   %U.loc7_20.2 => constants.%U
 // CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.79f131.1
-// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.bd48cc.1
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.465bad.1
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.e8ce81.1
+// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.6e0648.1
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.7db06c.1
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f78935.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U.as.Ptr.impl(constants.%T) {
 // CHECK:STDOUT:   %U.loc7_20.2 => constants.%T
 // CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.79f131.2
-// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.bd48cc.2
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.465bad.2
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.e8ce81.2
+// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.6e0648.2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.7db06c.2
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f78935.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.bbf) {}
+// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.c9a) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @F(constants.%T) {
 // CHECK:STDOUT:   %T.loc9_6.1 => constants.%T
 // CHECK:STDOUT:   %pattern_type.loc9_20 => constants.%pattern_type.7dc
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.e8ce81.2
-// CHECK:STDOUT:   %Ptr.facet.loc9_30.1 => constants.%Ptr.facet.bbf
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f78935.2
+// CHECK:STDOUT:   %Ptr.facet.loc9_30.1 => constants.%Ptr.facet.c9a
 // CHECK:STDOUT:   %ptr => constants.%ptr.79f131.2
 // CHECK:STDOUT:   %pattern_type.loc9_26 => constants.%pattern_type.afe
 // CHECK:STDOUT: }
@@ -1022,29 +1022,29 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %.Self.8b4: %Ptr.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.8b4 [symbolic_self]
-// CHECK:STDOUT:   %Ptr.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.8b4, @Ptr [symbolic_self]
-// CHECK:STDOUT:   %Ptr.facet.b6e: %Ptr.type = facet_value %.Self.as_type, (%Ptr.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %.Self.542: %Ptr.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.542 [symbolic_self]
+// CHECK:STDOUT:   %Ptr.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.542, @Ptr [symbolic_self]
+// CHECK:STDOUT:   %Ptr.facet.283: %Ptr.type = facet_value %.Self.as_type, (%Ptr.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %Ptr.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %U [symbolic]
-// CHECK:STDOUT:   %Ptr_where.type.bd4: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f> [symbolic]
-// CHECK:STDOUT:   %require_complete.465: <witness> = require_complete_type %Ptr_where.type.bd4 [symbolic]
-// CHECK:STDOUT:   %Ptr.impl_witness.e8c: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Ptr_where.type.6e0: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f> [symbolic]
+// CHECK:STDOUT:   %require_complete.7db: <witness> = require_complete_type %Ptr_where.type.6e0 [symbolic]
+// CHECK:STDOUT:   %Ptr.impl_witness.f78: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U) [symbolic]
 // CHECK:STDOUT:   %T: %Ptr.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.9bb: type = pattern_type %Ptr.type [concrete]
+// CHECK:STDOUT:   %pattern_type.93a: type = pattern_type %Ptr.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.87e: type = pattern_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %ptr.900: type = ptr_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %Ptr_where.type.0d6: type = facet_type <@Ptr where %impl.elem0 = %ptr.900> [symbolic]
-// CHECK:STDOUT:   %require_complete.d01: <witness> = require_complete_type %Ptr_where.type.0d6 [symbolic]
-// CHECK:STDOUT:   %Ptr.impl_witness.5aa: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type) [symbolic]
-// CHECK:STDOUT:   %Ptr.facet.db8: %Ptr.type = facet_value %T.as_type, (%Ptr.impl_witness.5aa) [symbolic]
-// CHECK:STDOUT:   %pattern_type.a95: type = pattern_type %ptr.900 [symbolic]
+// CHECK:STDOUT:   %pattern_type.d6e: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %ptr.a2b: type = ptr_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %Ptr_where.type.2a2: type = facet_type <@Ptr where %impl.elem0 = %ptr.a2b> [symbolic]
+// CHECK:STDOUT:   %require_complete.02c: <witness> = require_complete_type %Ptr_where.type.2a2 [symbolic]
+// CHECK:STDOUT:   %Ptr.impl_witness.f47: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type) [symbolic]
+// CHECK:STDOUT:   %Ptr.facet.044: %Ptr.type = facet_value %T.as_type, (%Ptr.impl_witness.f47) [symbolic]
+// CHECK:STDOUT:   %pattern_type.194: type = pattern_type %ptr.a2b [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.df6: <witness> = require_complete_type %ptr.900 [symbolic]
-// CHECK:STDOUT:   %require_complete.020: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.c7c: <witness> = require_complete_type %ptr.a2b [symbolic]
+// CHECK:STDOUT:   %require_complete.868: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1067,15 +1067,15 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %U.ref.loc7_30: type = name_ref U, %U.loc7_20.1 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:     %Ptr.ref: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
-// CHECK:STDOUT:     %.Self.1: %Ptr.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.8b4]
-// CHECK:STDOUT:     %.Self.ref: %Ptr.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.8b4]
+// CHECK:STDOUT:     %.Self.1: %Ptr.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.542]
+// CHECK:STDOUT:     %.Self.ref: %Ptr.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.542]
 // CHECK:STDOUT:     %Type.ref: %Ptr.assoc_type = name_ref Type, @Type.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc7_45: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %U.ref.loc7_53: type = name_ref U, %U.loc7_20.1 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:     %ptr.loc7_54.1: type = ptr_type %U.ref.loc7_53 [symbolic = %ptr.loc7_54.2 (constants.%ptr.79f)]
-// CHECK:STDOUT:     %.loc7_39: type = where_expr %.Self.1 [symbolic = %Ptr_where.type (constants.%Ptr_where.type.bd4)] {
+// CHECK:STDOUT:     %.loc7_39: type = where_expr %.Self.1 [symbolic = %Ptr_where.type (constants.%Ptr_where.type.6e0)] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%Ptr.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %ptr.loc7_54.1
 // CHECK:STDOUT:     }
@@ -1083,15 +1083,15 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %U.loc7_20.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Ptr.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @U.as.Ptr.impl [concrete]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness %Ptr.impl_witness_table, @U.as.Ptr.impl(constants.%U) [symbolic = @U.as.Ptr.impl.%Ptr.impl_witness (constants.%Ptr.impl_witness.e8c)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness %Ptr.impl_witness_table, @U.as.Ptr.impl(constants.%U) [symbolic = @U.as.Ptr.impl.%Ptr.impl_witness (constants.%Ptr.impl_witness.f78)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%ptr.79f [symbolic = @U.as.Ptr.impl.%ptr.loc7_54.2 (constants.%ptr.79f)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.9bb = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @F.%pattern_type.loc9_19 (%pattern_type.87e) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type.loc9_19 (%pattern_type.87e) = ref_param_pattern %t.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %t.var_patt: @F.%pattern_type.loc9_19 (%pattern_type.87e) = var_pattern %t.param_patt [concrete]
-// CHECK:STDOUT:     %return.patt: @F.%pattern_type.loc9_25 (%pattern_type.a95) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @F.%pattern_type.loc9_25 (%pattern_type.a95) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.93a = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @F.%pattern_type.loc9_19 (%pattern_type.d6e) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type.loc9_19 (%pattern_type.d6e) = ref_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %t.var_patt: @F.%pattern_type.loc9_19 (%pattern_type.d6e) = var_pattern %t.param_patt [concrete]
+// CHECK:STDOUT:     %return.patt: @F.%pattern_type.loc9_25 (%pattern_type.194) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @F.%pattern_type.loc9_25 (%pattern_type.194) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc9_28: %Ptr.type = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:     %Type.ref: %Ptr.assoc_type = name_ref Type, @Type.%assoc0 [concrete = constants.%assoc0]
@@ -1099,7 +1099,7 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %.loc9_29.1: type = converted %T.ref.loc9_28, %T.as_type.loc9_29.1 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %T.as_type.loc9_29.2: type = facet_access_type constants.%T [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc9_29.2: type = converted constants.%T, %T.as_type.loc9_29.2 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.impl_witness.5aa, element0 [symbolic = %ptr (constants.%ptr.900)]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.impl_witness.f47, element0 [symbolic = %ptr (constants.%ptr.a2b)]
 // CHECK:STDOUT:     %.loc9_10: type = splice_block %Ptr.ref [concrete = constants.%Ptr.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %Ptr.ref: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
@@ -1112,8 +1112,8 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:       %.loc9_22.2: type = converted %T.ref.loc9_22, %T.as_type.loc9_22.2 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t: ref @F.%T.as_type.loc9_22.1 (%T.as_type) = bind_name t, %t.param
-// CHECK:STDOUT:     %return.param: ref @F.%ptr (%ptr.900) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @F.%ptr (%ptr.900) = return_slot %return.param
+// CHECK:STDOUT:     %return.param: ref @F.%ptr (%ptr.a2b) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @F.%ptr (%ptr.a2b) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1136,9 +1136,9 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: generic impl @U.as.Ptr.impl(%U.loc7_20.1: type) {
 // CHECK:STDOUT:   %U.loc7_20.2: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:   %ptr.loc7_54.2: type = ptr_type %U.loc7_20.2 [symbolic = %ptr.loc7_54.2 (constants.%ptr.79f)]
-// CHECK:STDOUT:   %Ptr_where.type: type = facet_type <@Ptr where constants.%impl.elem0 = %ptr.loc7_54.2> [symbolic = %Ptr_where.type (constants.%Ptr_where.type.bd4)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Ptr_where.type [symbolic = %require_complete (constants.%require_complete.465)]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U.loc7_20.2) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.e8c)]
+// CHECK:STDOUT:   %Ptr_where.type: type = facet_type <@Ptr where constants.%impl.elem0 = %ptr.loc7_54.2> [symbolic = %Ptr_where.type (constants.%Ptr_where.type.6e0)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Ptr_where.type [symbolic = %require_complete (constants.%require_complete.7db)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U.loc7_20.2) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.f78)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -1151,54 +1151,54 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: generic fn @F(%T.loc9_6.2: %Ptr.type) {
 // CHECK:STDOUT:   %T.loc9_6.1: %Ptr.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc9_22.1: type = facet_access_type %T.loc9_6.1 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc9_19: type = pattern_type %T.as_type.loc9_22.1 [symbolic = %pattern_type.loc9_19 (constants.%pattern_type.87e)]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type.loc9_22.1) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.5aa)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc9_22.1 [symbolic = %ptr (constants.%ptr.900)]
-// CHECK:STDOUT:   %pattern_type.loc9_25: type = pattern_type %ptr [symbolic = %pattern_type.loc9_25 (constants.%pattern_type.a95)]
+// CHECK:STDOUT:   %pattern_type.loc9_19: type = pattern_type %T.as_type.loc9_22.1 [symbolic = %pattern_type.loc9_19 (constants.%pattern_type.d6e)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type.loc9_22.1) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.f47)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc9_22.1 [symbolic = %ptr (constants.%ptr.a2b)]
+// CHECK:STDOUT:   %pattern_type.loc9_25: type = pattern_type %ptr [symbolic = %pattern_type.loc9_25 (constants.%pattern_type.194)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc9_25: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc9_25 (constants.%require_complete.df6)]
-// CHECK:STDOUT:   %require_complete.loc9_15: <witness> = require_complete_type %T.as_type.loc9_22.1 [symbolic = %require_complete.loc9_15 (constants.%require_complete.020)]
+// CHECK:STDOUT:   %require_complete.loc9_25: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc9_25 (constants.%require_complete.c7c)]
+// CHECK:STDOUT:   %require_complete.loc9_15: <witness> = require_complete_type %T.as_type.loc9_22.1 [symbolic = %require_complete.loc9_15 (constants.%require_complete.868)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc9_22.1 (%T.as_type)) -> @F.%ptr (%ptr.900) {
+// CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc9_22.1 (%T.as_type)) -> @F.%ptr (%ptr.a2b) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref: ref @F.%T.as_type.loc9_22.1 (%T.as_type) = name_ref t, %t
-// CHECK:STDOUT:     %addr: @F.%ptr (%ptr.900) = addr_of %t.ref
+// CHECK:STDOUT:     %addr: @F.%ptr (%ptr.a2b) = addr_of %t.ref
 // CHECK:STDOUT:     return %addr
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Type(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.b6e) {}
+// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.283) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U.as.Ptr.impl(constants.%U) {
 // CHECK:STDOUT:   %U.loc7_20.2 => constants.%U
 // CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.79f
-// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.bd4
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.465
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.e8c
+// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.6e0
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.7db
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f78
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U.as.Ptr.impl(constants.%T.as_type) {
 // CHECK:STDOUT:   %U.loc7_20.2 => constants.%T.as_type
-// CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.900
-// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.0d6
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d01
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.5aa
+// CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.a2b
+// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.2a2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.02c
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f47
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.db8) {}
+// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.044) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @F(constants.%T) {
 // CHECK:STDOUT:   %T.loc9_6.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc9_22.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc9_19 => constants.%pattern_type.87e
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.5aa
-// CHECK:STDOUT:   %ptr => constants.%ptr.900
-// CHECK:STDOUT:   %pattern_type.loc9_25 => constants.%pattern_type.a95
+// CHECK:STDOUT:   %pattern_type.loc9_19 => constants.%pattern_type.d6e
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f47
+// CHECK:STDOUT:   %ptr => constants.%ptr.a2b
+// CHECK:STDOUT:   %pattern_type.loc9_25 => constants.%pattern_type.194
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- final_impl_rewrite_of_symbolic_through_facet_value.carbon
@@ -1211,29 +1211,29 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %.Self.8b4: %Ptr.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.8b4 [symbolic_self]
-// CHECK:STDOUT:   %Ptr.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.8b4, @Ptr [symbolic_self]
-// CHECK:STDOUT:   %Ptr.facet.b6e: %Ptr.type = facet_value %.Self.as_type, (%Ptr.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %.Self.542: %Ptr.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.542 [symbolic_self]
+// CHECK:STDOUT:   %Ptr.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.542, @Ptr [symbolic_self]
+// CHECK:STDOUT:   %Ptr.facet.283: %Ptr.type = facet_value %.Self.as_type, (%Ptr.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %Ptr.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %U [symbolic]
-// CHECK:STDOUT:   %Ptr_where.type.bd4: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f> [symbolic]
-// CHECK:STDOUT:   %require_complete.465: <witness> = require_complete_type %Ptr_where.type.bd4 [symbolic]
-// CHECK:STDOUT:   %Ptr.impl_witness.e8c: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U) [symbolic]
+// CHECK:STDOUT:   %Ptr_where.type.6e0: type = facet_type <@Ptr where %impl.elem0 = %ptr.79f> [symbolic]
+// CHECK:STDOUT:   %require_complete.7db: <witness> = require_complete_type %Ptr_where.type.6e0 [symbolic]
+// CHECK:STDOUT:   %Ptr.impl_witness.f78: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U) [symbolic]
 // CHECK:STDOUT:   %T: %Ptr.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.9bb: type = pattern_type %Ptr.type [concrete]
+// CHECK:STDOUT:   %pattern_type.93a: type = pattern_type %Ptr.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.87e: type = pattern_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %ptr.900: type = ptr_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %Ptr_where.type.0d6: type = facet_type <@Ptr where %impl.elem0 = %ptr.900> [symbolic]
-// CHECK:STDOUT:   %require_complete.d01: <witness> = require_complete_type %Ptr_where.type.0d6 [symbolic]
-// CHECK:STDOUT:   %Ptr.impl_witness.5aa: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type) [symbolic]
-// CHECK:STDOUT:   %Ptr.facet.db8: %Ptr.type = facet_value %T.as_type, (%Ptr.impl_witness.5aa) [symbolic]
-// CHECK:STDOUT:   %pattern_type.a95: type = pattern_type %ptr.900 [symbolic]
+// CHECK:STDOUT:   %pattern_type.d6e: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %ptr.a2b: type = ptr_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %Ptr_where.type.2a2: type = facet_type <@Ptr where %impl.elem0 = %ptr.a2b> [symbolic]
+// CHECK:STDOUT:   %require_complete.02c: <witness> = require_complete_type %Ptr_where.type.2a2 [symbolic]
+// CHECK:STDOUT:   %Ptr.impl_witness.f47: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type) [symbolic]
+// CHECK:STDOUT:   %Ptr.facet.044: %Ptr.type = facet_value %T.as_type, (%Ptr.impl_witness.f47) [symbolic]
+// CHECK:STDOUT:   %pattern_type.194: type = pattern_type %ptr.a2b [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.df6: <witness> = require_complete_type %ptr.900 [symbolic]
-// CHECK:STDOUT:   %require_complete.020: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.c7c: <witness> = require_complete_type %ptr.a2b [symbolic]
+// CHECK:STDOUT:   %require_complete.868: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1256,15 +1256,15 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %U.ref.loc7_30: type = name_ref U, %U.loc7_20.1 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:     %Ptr.ref: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
-// CHECK:STDOUT:     %.Self.1: %Ptr.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.8b4]
-// CHECK:STDOUT:     %.Self.ref: %Ptr.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.8b4]
+// CHECK:STDOUT:     %.Self.1: %Ptr.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.542]
+// CHECK:STDOUT:     %.Self.ref: %Ptr.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.542]
 // CHECK:STDOUT:     %Type.ref: %Ptr.assoc_type = name_ref Type, @Type.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc7_45: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %U.ref.loc7_53: type = name_ref U, %U.loc7_20.1 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:     %ptr.loc7_54.1: type = ptr_type %U.ref.loc7_53 [symbolic = %ptr.loc7_54.2 (constants.%ptr.79f)]
-// CHECK:STDOUT:     %.loc7_39: type = where_expr %.Self.1 [symbolic = %Ptr_where.type (constants.%Ptr_where.type.bd4)] {
+// CHECK:STDOUT:     %.loc7_39: type = where_expr %.Self.1 [symbolic = %Ptr_where.type (constants.%Ptr_where.type.6e0)] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%Ptr.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %ptr.loc7_54.1
 // CHECK:STDOUT:     }
@@ -1272,22 +1272,22 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:     %U.loc7_20.1: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Ptr.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @U.as.Ptr.impl [concrete]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness %Ptr.impl_witness_table, @U.as.Ptr.impl(constants.%U) [symbolic = @U.as.Ptr.impl.%Ptr.impl_witness (constants.%Ptr.impl_witness.e8c)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness %Ptr.impl_witness_table, @U.as.Ptr.impl(constants.%U) [symbolic = @U.as.Ptr.impl.%Ptr.impl_witness (constants.%Ptr.impl_witness.f78)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%ptr.79f [symbolic = @U.as.Ptr.impl.%ptr.loc7_54.2 (constants.%ptr.79f)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.9bb = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @F.%pattern_type.loc9_19 (%pattern_type.87e) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type.loc9_19 (%pattern_type.87e) = ref_param_pattern %t.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %t.var_patt: @F.%pattern_type.loc9_19 (%pattern_type.87e) = var_pattern %t.param_patt [concrete]
-// CHECK:STDOUT:     %return.patt: @F.%pattern_type.loc9_25 (%pattern_type.a95) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @F.%pattern_type.loc9_25 (%pattern_type.a95) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.93a = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @F.%pattern_type.loc9_19 (%pattern_type.d6e) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @F.%pattern_type.loc9_19 (%pattern_type.d6e) = ref_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %t.var_patt: @F.%pattern_type.loc9_19 (%pattern_type.d6e) = var_pattern %t.param_patt [concrete]
+// CHECK:STDOUT:     %return.patt: @F.%pattern_type.loc9_25 (%pattern_type.194) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @F.%pattern_type.loc9_25 (%pattern_type.194) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc9_28: %Ptr.type = name_ref T, %T.loc9_6.2 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:     %Ptr.ref.loc9_31: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
 // CHECK:STDOUT:     %Type.ref: %Ptr.assoc_type = name_ref Type, @Type.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc9_29: type = facet_access_type constants.%T [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc9_29: type = converted constants.%T, %T.as_type.loc9_29 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.impl_witness.5aa, element0 [symbolic = %ptr (constants.%ptr.900)]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Ptr.impl_witness.f47, element0 [symbolic = %ptr (constants.%ptr.a2b)]
 // CHECK:STDOUT:     %.loc9_10: type = splice_block %Ptr.ref.loc9_10 [concrete = constants.%Ptr.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %Ptr.ref.loc9_10: type = name_ref Ptr, file.%Ptr.decl [concrete = constants.%Ptr.type]
@@ -1300,8 +1300,8 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT:       %.loc9_22.2: type = converted %T.ref.loc9_22, %T.as_type.loc9_22.2 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t: ref @F.%T.as_type.loc9_22.1 (%T.as_type) = bind_name t, %t.param
-// CHECK:STDOUT:     %return.param: ref @F.%ptr (%ptr.900) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @F.%ptr (%ptr.900) = return_slot %return.param
+// CHECK:STDOUT:     %return.param: ref @F.%ptr (%ptr.a2b) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @F.%ptr (%ptr.a2b) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1324,9 +1324,9 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: generic impl @U.as.Ptr.impl(%U.loc7_20.1: type) {
 // CHECK:STDOUT:   %U.loc7_20.2: type = bind_symbolic_name U, 0 [symbolic = %U.loc7_20.2 (constants.%U)]
 // CHECK:STDOUT:   %ptr.loc7_54.2: type = ptr_type %U.loc7_20.2 [symbolic = %ptr.loc7_54.2 (constants.%ptr.79f)]
-// CHECK:STDOUT:   %Ptr_where.type: type = facet_type <@Ptr where constants.%impl.elem0 = %ptr.loc7_54.2> [symbolic = %Ptr_where.type (constants.%Ptr_where.type.bd4)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Ptr_where.type [symbolic = %require_complete (constants.%require_complete.465)]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U.loc7_20.2) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.e8c)]
+// CHECK:STDOUT:   %Ptr_where.type: type = facet_type <@Ptr where constants.%impl.elem0 = %ptr.loc7_54.2> [symbolic = %Ptr_where.type (constants.%Ptr_where.type.6e0)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Ptr_where.type [symbolic = %require_complete (constants.%require_complete.7db)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%U.loc7_20.2) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.f78)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -1339,53 +1339,53 @@ fn F[T:! Ptr](var t: T) -> T.(Ptr.Type) {
 // CHECK:STDOUT: generic fn @F(%T.loc9_6.2: %Ptr.type) {
 // CHECK:STDOUT:   %T.loc9_6.1: %Ptr.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc9_22.1: type = facet_access_type %T.loc9_6.1 [symbolic = %T.as_type.loc9_22.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc9_19: type = pattern_type %T.as_type.loc9_22.1 [symbolic = %pattern_type.loc9_19 (constants.%pattern_type.87e)]
-// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type.loc9_22.1) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.5aa)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc9_22.1 [symbolic = %ptr (constants.%ptr.900)]
-// CHECK:STDOUT:   %pattern_type.loc9_25: type = pattern_type %ptr [symbolic = %pattern_type.loc9_25 (constants.%pattern_type.a95)]
+// CHECK:STDOUT:   %pattern_type.loc9_19: type = pattern_type %T.as_type.loc9_22.1 [symbolic = %pattern_type.loc9_19 (constants.%pattern_type.d6e)]
+// CHECK:STDOUT:   %Ptr.impl_witness: <witness> = impl_witness file.%Ptr.impl_witness_table, @U.as.Ptr.impl(%T.as_type.loc9_22.1) [symbolic = %Ptr.impl_witness (constants.%Ptr.impl_witness.f47)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc9_22.1 [symbolic = %ptr (constants.%ptr.a2b)]
+// CHECK:STDOUT:   %pattern_type.loc9_25: type = pattern_type %ptr [symbolic = %pattern_type.loc9_25 (constants.%pattern_type.194)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc9_25: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc9_25 (constants.%require_complete.df6)]
-// CHECK:STDOUT:   %require_complete.loc9_15: <witness> = require_complete_type %T.as_type.loc9_22.1 [symbolic = %require_complete.loc9_15 (constants.%require_complete.020)]
+// CHECK:STDOUT:   %require_complete.loc9_25: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc9_25 (constants.%require_complete.c7c)]
+// CHECK:STDOUT:   %require_complete.loc9_15: <witness> = require_complete_type %T.as_type.loc9_22.1 [symbolic = %require_complete.loc9_15 (constants.%require_complete.868)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc9_22.1 (%T.as_type)) -> @F.%ptr (%ptr.900) {
+// CHECK:STDOUT:   fn(%t.param: @F.%T.as_type.loc9_22.1 (%T.as_type)) -> @F.%ptr (%ptr.a2b) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref: ref @F.%T.as_type.loc9_22.1 (%T.as_type) = name_ref t, %t
-// CHECK:STDOUT:     %addr: @F.%ptr (%ptr.900) = addr_of %t.ref
+// CHECK:STDOUT:     %addr: @F.%ptr (%ptr.a2b) = addr_of %t.ref
 // CHECK:STDOUT:     return %addr
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Type(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.b6e) {}
+// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.283) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U.as.Ptr.impl(constants.%U) {
 // CHECK:STDOUT:   %U.loc7_20.2 => constants.%U
 // CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.79f
-// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.bd4
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.465
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.e8c
+// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.6e0
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.7db
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f78
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U.as.Ptr.impl(constants.%T.as_type) {
 // CHECK:STDOUT:   %U.loc7_20.2 => constants.%T.as_type
-// CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.900
-// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.0d6
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.d01
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.5aa
+// CHECK:STDOUT:   %ptr.loc7_54.2 => constants.%ptr.a2b
+// CHECK:STDOUT:   %Ptr_where.type => constants.%Ptr_where.type.2a2
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.02c
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f47
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.db8) {}
+// CHECK:STDOUT: specific @Type(constants.%Ptr.facet.044) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @F(constants.%T) {
 // CHECK:STDOUT:   %T.loc9_6.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc9_22.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc9_19 => constants.%pattern_type.87e
-// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.5aa
-// CHECK:STDOUT:   %ptr => constants.%ptr.900
-// CHECK:STDOUT:   %pattern_type.loc9_25 => constants.%pattern_type.a95
+// CHECK:STDOUT:   %pattern_type.loc9_19 => constants.%pattern_type.d6e
+// CHECK:STDOUT:   %Ptr.impl_witness => constants.%Ptr.impl_witness.f47
+// CHECK:STDOUT:   %ptr => constants.%ptr.a2b
+// CHECK:STDOUT:   %pattern_type.loc9_25 => constants.%pattern_type.194
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/lookup/specific_args.carbon b/toolchain/check/testdata/impl/lookup/specific_args.carbon
index 61fb9170b42a..3d7527f89c16 100644
--- a/toolchain/check/testdata/impl/lookup/specific_args.carbon
+++ b/toolchain/check/testdata/impl/lookup/specific_args.carbon
@@ -63,10 +63,10 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic]
@@ -104,23 +104,23 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T.loc4_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc4_13.1)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc4_13.1)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T.loc4_13.1) [symbolic = %I.F.type (constants.%I.F.type)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type) = struct_value () [symbolic = %I.F (constants.%I.F)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc4_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc4_43.2: @I.%I.assoc_type (%I.assoc_type) = assoc_entity element0, %I.F.decl [symbolic = %assoc0.loc4_43.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %I.F.decl: @I.%I.F.type (%I.F.type) = fn_decl @I.F [symbolic = @I.%I.F (constants.%I.F)] {
-// CHECK:STDOUT:       %self.patt: @I.F.%pattern_type (%pattern_type.4be) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @I.F.%pattern_type (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @I.F.%pattern_type (%pattern_type.857) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @I.F.%pattern_type (%pattern_type.857) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %self.param: @I.F.%Self.as_type.loc4_36.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc4_36.1: type = splice_block %.loc4_36.3 [symbolic = %Self.as_type.loc4_36.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc4_36.2: @I.F.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:         %Self.ref: @I.F.%I.type (%I.type.325) = name_ref Self, %.loc4_36.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %.loc4_36.2: @I.F.%I.type (%I.type.328) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %Self.ref: @I.F.%I.type (%I.type.328) = name_ref Self, %.loc4_36.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:         %Self.as_type.loc4_36.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_36.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc4_36.3: type = converted %Self.ref, %Self.as_type.loc4_36.2 [symbolic = %Self.as_type.loc4_36.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -157,12 +157,12 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   .Self = constants.%X
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(@I.%T.loc4_13.2: type, @I.%Self.1: @I.%I.type (%I.type.325)) {
+// CHECK:STDOUT: generic fn @I.F(@I.%T.loc4_13.2: type, @I.%Self.1: @I.%I.type (%I.type.328)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc4_36.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_36.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_36.1 [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_36.1 [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc4_36.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -173,10 +173,10 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc4_36.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%T) {
@@ -193,16 +193,16 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2ae: type = fn_type @I.F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2: %I.F.type.2ae = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.209 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.0d8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5: type = assoc_entity_type @I, @I(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.688: %I.assoc_type.1e5 = assoc_entity element0, imports.%Main.import_ref.479 [symbolic]
-// CHECK:STDOUT:   %I.type.e45: type = facet_type <@I, @I(%InInterfaceArgs)> [concrete]
-// CHECK:STDOUT:   %Self.061: %I.type.e45 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.eb5: type = facet_type <@I, @I(%InInterfaceArgs)> [concrete]
+// CHECK:STDOUT:   %Self.85b: %I.type.eb5 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.14f: type = fn_type @I.F, @I(%InInterfaceArgs) [concrete]
 // CHECK:STDOUT:   %I.F.b81: %I.F.type.14f = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type.521: type = assoc_entity_type @I, @I(%InInterfaceArgs) [concrete]
@@ -211,7 +211,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %pattern_type.019: type = pattern_type %X [concrete]
 // CHECK:STDOUT:   %X.as.I.impl.F.type: type = fn_type @X.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %X.as.I.impl.F: %X.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type.e45 = facet_value %X, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type.eb5 = facet_value %X, (%I.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -221,11 +221,11 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %Main.import_ref.8f2: <witness> = import_ref Main//types, loc7_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.acf = import_ref Main//types, inst69 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.884 = import_ref Main//types, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.4e2 = import_ref Main//types, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.2bb = import_ref Main//types, loc4_43, unloaded
 // CHECK:STDOUT:   %Main.F: @I.%I.F.type (%I.F.type.2ae) = import_ref Main//types, F, loaded [symbolic = @I.%I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.38e: @I.%I.type (%I.type.325) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.209)]
+// CHECK:STDOUT:   %Main.import_ref.7dc: @I.%I.type (%I.type.328) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Main.import_ref.479 = import_ref Main//types, loc4_43, unloaded
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -242,7 +242,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:     %X.ref: type = name_ref X, imports.%Main.X [concrete = constants.%X]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %InInterfaceArgs.ref: type = name_ref InInterfaceArgs, file.%InInterfaceArgs.decl [concrete = constants.%InInterfaceArgs]
-// CHECK:STDOUT:     %I.type: type = facet_type <@I, @I(constants.%InInterfaceArgs)> [concrete = constants.%I.type.e45]
+// CHECK:STDOUT:     %I.type: type = facet_type <@I, @I(constants.%InInterfaceArgs)> [concrete = constants.%I.type.eb5]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@X.as.I.impl.%X.as.I.impl.F.decl), @X.as.I.impl [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
@@ -252,8 +252,8 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T) [symbolic = %I.F.type (constants.%I.F.type.2ae)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2ae) = struct_value () [symbolic = %I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
@@ -261,7 +261,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.884
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.4e2
 // CHECK:STDOUT:     .F = imports.%Main.import_ref.2bb
 // CHECK:STDOUT:     witness = (imports.%Main.F)
 // CHECK:STDOUT:   }
@@ -297,12 +297,12 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   .Self = imports.%Main.import_ref.acf
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.38e: @I.%I.type (%I.type.325)) [from "types.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.7dc: @I.%I.type (%I.type.328)) [from "types.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -316,20 +316,20 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.209) {
+// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.0d8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self => constants.%Self.0d8
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%InInterfaceArgs) {
 // CHECK:STDOUT:   %T => constants.%InInterfaceArgs
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.e45
-// CHECK:STDOUT:   %Self => constants.%Self.061
+// CHECK:STDOUT:   %I.type => constants.%I.type.eb5
+// CHECK:STDOUT:   %Self => constants.%Self.85b
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.14f
 // CHECK:STDOUT:   %I.F => constants.%I.F.b81
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.521
@@ -338,7 +338,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%InInterfaceArgs, constants.%I.facet) {
 // CHECK:STDOUT:   %T => constants.%InInterfaceArgs
-// CHECK:STDOUT:   %I.type => constants.%I.type.e45
+// CHECK:STDOUT:   %I.type => constants.%I.type.eb5
 // CHECK:STDOUT:   %Self => constants.%I.facet
 // CHECK:STDOUT:   %Self.as_type => constants.%X
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.019
@@ -357,25 +357,25 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2ae: type = fn_type @I.F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2: %I.F.type.2ae = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.209 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.0d8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5: type = assoc_entity_type @I, @I(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.429: %I.assoc_type.1e5 = assoc_entity element0, imports.%Main.import_ref.e54 [symbolic]
 // CHECK:STDOUT:   %InInterfaceArgs: type = class_type @InInterfaceArgs [concrete]
-// CHECK:STDOUT:   %I.type.e45: type = facet_type <@I, @I(%InInterfaceArgs)> [concrete]
-// CHECK:STDOUT:   %Self.061: %I.type.e45 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.eb5: type = facet_type <@I, @I(%InInterfaceArgs)> [concrete]
+// CHECK:STDOUT:   %Self.85b: %I.type.eb5 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.14f: type = fn_type @I.F, @I(%InInterfaceArgs) [concrete]
 // CHECK:STDOUT:   %I.F.b81: %I.F.type.14f = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type.521: type = assoc_entity_type @I, @I(%InInterfaceArgs) [concrete]
 // CHECK:STDOUT:   %assoc0.63d: %I.assoc_type.521 = assoc_entity element0, imports.%Main.import_ref.e54 [concrete]
 // CHECK:STDOUT:   %assoc0.688: %I.assoc_type.1e5 = assoc_entity element0, imports.%Main.import_ref.479 [symbolic]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type.e45 = facet_value %X, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.658: type = fn_type_with_self_type %I.F.type.14f, %I.facet [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type.eb5 = facet_value %X, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %.786: type = fn_type_with_self_type %I.F.type.14f, %I.facet [concrete]
 // CHECK:STDOUT:   %X.as.I.impl.F.type: type = fn_type @X.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %X.as.I.impl.F: %X.as.I.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -388,20 +388,20 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//types, loc7_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.acf = import_ref Main//types, inst69 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.884 = import_ref Main//types, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.4e2 = import_ref Main//types, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.474: @I.%I.assoc_type (%I.assoc_type.1e5) = import_ref Main//types, loc4_43, loaded [symbolic = @I.%assoc0 (constants.%assoc0.688)]
 // CHECK:STDOUT:   %Main.F = import_ref Main//types, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.38e: @I.%I.type (%I.type.325) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.209)]
+// CHECK:STDOUT:   %Main.import_ref.7dc: @I.%I.type (%I.type.328) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Main.import_ref.e54: @I.%I.F.type (%I.F.type.2ae) = import_ref Main//types, loc4_43, loaded [symbolic = @I.%I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//impl_in_interface_args, loc5_24, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.bf8 = import_ref Main//impl_in_interface_args, inst20 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.479 = import_ref Main//types, loc4_43, unloaded
-// CHECK:STDOUT:   %Main.import_ref.e08: <witness> = import_ref Main//impl_in_interface_args, loc7_30, loaded [concrete = constants.%I.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.19b: <witness> = import_ref Main//impl_in_interface_args, loc7_30, loaded [concrete = constants.%I.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.956: type = import_ref Main//impl_in_interface_args, loc7_6, loaded [concrete = constants.%X]
-// CHECK:STDOUT:   %Main.import_ref.e8c: type = import_ref Main//impl_in_interface_args, loc7_28, loaded [concrete = constants.%I.type.e45]
-// CHECK:STDOUT:   %Main.import_ref.7f5: %X.as.I.impl.F.type = import_ref Main//impl_in_interface_args, loc7_51, loaded [concrete = constants.%X.as.I.impl.F]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.7f5), @X.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.800: type = import_ref Main//impl_in_interface_args, loc7_28, loaded [concrete = constants.%I.type.eb5]
+// CHECK:STDOUT:   %Main.import_ref.391: %X.as.I.impl.F.type = import_ref Main//impl_in_interface_args, loc7_51, loaded [concrete = constants.%X.as.I.impl.F]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.391), @X.as.I.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -427,8 +427,8 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T) [symbolic = %I.F.type (constants.%I.F.type.2ae)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2ae) = struct_value () [symbolic = %I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
@@ -436,15 +436,15 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.884
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.4e2
 // CHECK:STDOUT:     .F = imports.%Main.import_ref.474
 // CHECK:STDOUT:     witness = (imports.%Main.F)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @X.as.I.impl: imports.%Main.import_ref.956 as imports.%Main.import_ref.e8c [from "impl_in_interface_args.carbon"] {
+// CHECK:STDOUT: impl @X.as.I.impl: imports.%Main.import_ref.956 as imports.%Main.import_ref.800 [from "impl_in_interface_args.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.e08
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.19b
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @X [from "types.carbon"] {
@@ -466,21 +466,21 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %x.ref: %X = name_ref x, %x
 // CHECK:STDOUT:   %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:   %InInterfaceArgs.ref: type = name_ref InInterfaceArgs, imports.%Main.InInterfaceArgs [concrete = constants.%InInterfaceArgs]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(constants.%InInterfaceArgs)> [concrete = constants.%I.type.e45]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(constants.%InInterfaceArgs)> [concrete = constants.%I.type.eb5]
 // CHECK:STDOUT:   %.loc6: %I.assoc_type.521 = specific_constant imports.%Main.import_ref.474, @I(constants.%InInterfaceArgs) [concrete = constants.%assoc0.63d]
 // CHECK:STDOUT:   %F.ref: %I.assoc_type.521 = name_ref F, %.loc6 [concrete = constants.%assoc0.63d]
-// CHECK:STDOUT:   %impl.elem0: %.658 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%X.as.I.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.786 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%X.as.I.impl.F]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.ref, %impl.elem0
 // CHECK:STDOUT:   %X.as.I.impl.F.call: init %empty_tuple.type = call %bound_method(%x.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.38e: @I.%I.type (%I.type.325)) [from "types.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.7dc: @I.%I.type (%I.type.328)) [from "types.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -491,20 +491,20 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.209) {
+// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.0d8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self => constants.%Self.0d8
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%InInterfaceArgs) {
 // CHECK:STDOUT:   %T => constants.%InInterfaceArgs
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.e45
-// CHECK:STDOUT:   %Self => constants.%Self.061
+// CHECK:STDOUT:   %I.type => constants.%I.type.eb5
+// CHECK:STDOUT:   %Self => constants.%Self.85b
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.14f
 // CHECK:STDOUT:   %I.F => constants.%I.F.b81
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.521
@@ -523,17 +523,17 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %C.23b: type = class_type @C, @C(%InClassArgs) [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2ae: type = fn_type @I.F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2: %I.F.type.2ae = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.209 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.0d8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5: type = assoc_entity_type @I, @I(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.688: %I.assoc_type.1e5 = assoc_entity element0, imports.%Main.import_ref.479 [symbolic]
 // CHECK:STDOUT:   %X: type = class_type @X [concrete]
-// CHECK:STDOUT:   %I.type.45c: type = facet_type <@I, @I(%X)> [concrete]
-// CHECK:STDOUT:   %Self.a34: %I.type.45c = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.047: type = facet_type <@I, @I(%X)> [concrete]
+// CHECK:STDOUT:   %Self.fde: %I.type.047 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.56a: type = fn_type @I.F, @I(%X) [concrete]
 // CHECK:STDOUT:   %I.F.a79: %I.F.type.56a = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type.2db: type = assoc_entity_type @I, @I(%X) [concrete]
@@ -542,7 +542,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %pattern_type.e06: type = pattern_type %C.23b [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type.45c = facet_value %C.23b, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type.047 = facet_value %C.23b, (%I.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -553,11 +553,11 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.1: <witness> = import_ref Main//types, loc5_20, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.4c0 = import_ref Main//types, inst64 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.884 = import_ref Main//types, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.4e2 = import_ref Main//types, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.2bb = import_ref Main//types, loc4_43, unloaded
 // CHECK:STDOUT:   %Main.F: @I.%I.F.type (%I.F.type.2ae) = import_ref Main//types, F, loaded [symbolic = @I.%I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.38e: @I.%I.type (%I.type.325) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.209)]
+// CHECK:STDOUT:   %Main.import_ref.7dc: @I.%I.type (%I.type.328) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Main.import_ref.479 = import_ref Main//types, loc4_43, unloaded
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//types, loc7_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.acf = import_ref Main//types, inst69 [no loc], unloaded
@@ -578,7 +578,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%InClassArgs) [concrete = constants.%C.23b]
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %X.ref: type = name_ref X, imports.%Main.X [concrete = constants.%X]
-// CHECK:STDOUT:     %I.type: type = facet_type <@I, @I(constants.%X)> [concrete = constants.%I.type.45c]
+// CHECK:STDOUT:     %I.type: type = facet_type <@I, @I(constants.%X)> [concrete = constants.%I.type.047]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@C.as.I.impl.%C.as.I.impl.F.decl), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
@@ -588,8 +588,8 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T) [symbolic = %I.F.type (constants.%I.F.type.2ae)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2ae) = struct_value () [symbolic = %I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
@@ -597,7 +597,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.884
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.4e2
 // CHECK:STDOUT:     .F = imports.%Main.import_ref.2bb
 // CHECK:STDOUT:     witness = (imports.%Main.F)
 // CHECK:STDOUT:   }
@@ -646,12 +646,12 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   .Self = imports.%Main.import_ref.acf
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.38e: @I.%I.type (%I.type.325)) [from "types.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.7dc: @I.%I.type (%I.type.328)) [from "types.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -675,20 +675,20 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.209) {
+// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.0d8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self => constants.%Self.0d8
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%X) {
 // CHECK:STDOUT:   %T => constants.%X
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.45c
-// CHECK:STDOUT:   %Self => constants.%Self.a34
+// CHECK:STDOUT:   %I.type => constants.%I.type.047
+// CHECK:STDOUT:   %Self => constants.%Self.fde
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.56a
 // CHECK:STDOUT:   %I.F => constants.%I.F.a79
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.2db
@@ -697,7 +697,7 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%X, constants.%I.facet) {
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %I.type => constants.%I.type.45c
+// CHECK:STDOUT:   %I.type => constants.%I.type.047
 // CHECK:STDOUT:   %Self => constants.%I.facet
 // CHECK:STDOUT:   %Self.as_type => constants.%C.23b
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.e06
@@ -719,25 +719,25 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.2ae: type = fn_type @I.F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2: %I.F.type.2ae = struct_value () [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.209 [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.0d8 [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.assoc_type.1e5: type = assoc_entity_type @I, @I(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.429: %I.assoc_type.1e5 = assoc_entity element0, imports.%Main.import_ref.e54 [symbolic]
 // CHECK:STDOUT:   %X: type = class_type @X [concrete]
-// CHECK:STDOUT:   %I.type.45c: type = facet_type <@I, @I(%X)> [concrete]
-// CHECK:STDOUT:   %Self.a34: %I.type.45c = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.047: type = facet_type <@I, @I(%X)> [concrete]
+// CHECK:STDOUT:   %Self.fde: %I.type.047 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.56a: type = fn_type @I.F, @I(%X) [concrete]
 // CHECK:STDOUT:   %I.F.a79: %I.F.type.56a = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type.2db: type = assoc_entity_type @I, @I(%X) [concrete]
 // CHECK:STDOUT:   %assoc0.071: %I.assoc_type.2db = assoc_entity element0, imports.%Main.import_ref.e54 [concrete]
 // CHECK:STDOUT:   %assoc0.688: %I.assoc_type.1e5 = assoc_entity element0, imports.%Main.import_ref.479 [symbolic]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
-// CHECK:STDOUT:   %I.facet: %I.type.45c = facet_value %C.23b, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.d3f: type = fn_type_with_self_type %I.F.type.56a, %I.facet [concrete]
+// CHECK:STDOUT:   %I.facet: %I.type.047 = facet_value %C.23b, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %.939: type = fn_type_with_self_type %I.F.type.56a, %I.facet [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -753,20 +753,20 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.2: <witness> = import_ref Main//impl_in_class_args, loc5_20, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.683 = import_ref Main//impl_in_class_args, inst20 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.884 = import_ref Main//types, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.4e2 = import_ref Main//types, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.474: @I.%I.assoc_type (%I.assoc_type.1e5) = import_ref Main//types, loc4_43, loaded [symbolic = @I.%assoc0 (constants.%assoc0.688)]
 // CHECK:STDOUT:   %Main.F = import_ref Main//types, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.3: type = import_ref Main//types, loc4_13, loaded [symbolic = @I.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.38e: @I.%I.type (%I.type.325) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.209)]
+// CHECK:STDOUT:   %Main.import_ref.7dc: @I.%I.type (%I.type.328) = import_ref Main//types, inst27 [no loc], loaded [symbolic = @I.%Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Main.import_ref.e54: @I.%I.F.type (%I.F.type.2ae) = import_ref Main//types, loc4_43, loaded [symbolic = @I.%I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %Main.import_ref.8f24d3.3: <witness> = import_ref Main//types, loc7_10, loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.acf = import_ref Main//types, inst69 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.479 = import_ref Main//types, loc4_43, unloaded
-// CHECK:STDOUT:   %Main.import_ref.a72: <witness> = import_ref Main//impl_in_class_args, loc7_29, loaded [concrete = constants.%I.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.bd4: <witness> = import_ref Main//impl_in_class_args, loc7_29, loaded [concrete = constants.%I.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.d6e: type = import_ref Main//impl_in_class_args, loc7_19, loaded [concrete = constants.%C.23b]
-// CHECK:STDOUT:   %Main.import_ref.208: type = import_ref Main//impl_in_class_args, loc7_27, loaded [concrete = constants.%I.type.45c]
-// CHECK:STDOUT:   %Main.import_ref.ae4: %C.as.I.impl.F.type = import_ref Main//impl_in_class_args, loc7_50, loaded [concrete = constants.%C.as.I.impl.F]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.ae4), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.cc2: type = import_ref Main//impl_in_class_args, loc7_27, loaded [concrete = constants.%I.type.047]
+// CHECK:STDOUT:   %Main.import_ref.6a1: %C.as.I.impl.F.type = import_ref Main//impl_in_class_args, loc7_50, loaded [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.6a1), @C.as.I.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -796,8 +796,8 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T) [symbolic = %I.F.type (constants.%I.F.type.2ae)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2ae) = struct_value () [symbolic = %I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
@@ -805,15 +805,15 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.884
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.4e2
 // CHECK:STDOUT:     .F = imports.%Main.import_ref.474
 // CHECK:STDOUT:     witness = (imports.%Main.F)
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.I.impl: imports.%Main.import_ref.d6e as imports.%Main.import_ref.208 [from "impl_in_class_args.carbon"] {
+// CHECK:STDOUT: impl @C.as.I.impl: imports.%Main.import_ref.d6e as imports.%Main.import_ref.cc2 [from "impl_in_class_args.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.a72
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.bd4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic class @C(imports.%Main.import_ref.5ab3ec.1: type) [from "types.carbon"] {
@@ -848,21 +848,21 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %c.ref: %C.23b = name_ref c, %c
 // CHECK:STDOUT:   %I.ref: %I.type.dac = name_ref I, imports.%Main.I [concrete = constants.%I.generic]
 // CHECK:STDOUT:   %X.ref: type = name_ref X, imports.%Main.X [concrete = constants.%X]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(constants.%X)> [concrete = constants.%I.type.45c]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(constants.%X)> [concrete = constants.%I.type.047]
 // CHECK:STDOUT:   %.loc6_34: %I.assoc_type.2db = specific_constant imports.%Main.import_ref.474, @I(constants.%X) [concrete = constants.%assoc0.071]
 // CHECK:STDOUT:   %F.ref: %I.assoc_type.2db = name_ref F, %.loc6_34 [concrete = constants.%assoc0.071]
-// CHECK:STDOUT:   %impl.elem0: %.d3f = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.939 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.I.impl.F.call: init %empty_tuple.type = call %bound_method(%c.ref)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.38e: @I.%I.type (%I.type.325)) [from "types.carbon"] {
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5ab3ec.3: type, imports.%Main.import_ref.7dc: @I.%I.type (%I.type.328)) [from "types.carbon"] {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.0d8)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -883,20 +883,20 @@ fn H(c: C(InClassArgs)) { c.(I(X).F)(); }
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.209) {
+// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.0d8) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self => constants.%Self.0d8
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I(constants.%X) {
 // CHECK:STDOUT:   %T => constants.%X
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.45c
-// CHECK:STDOUT:   %Self => constants.%Self.a34
+// CHECK:STDOUT:   %I.type => constants.%I.type.047
+// CHECK:STDOUT:   %Self => constants.%Self.fde
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.56a
 // CHECK:STDOUT:   %I.F => constants.%I.F.a79
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.2db
diff --git a/toolchain/check/testdata/impl/lookup/transitive.carbon b/toolchain/check/testdata/impl/lookup/transitive.carbon
index c7d03a9afa41..b773483d7f03 100644
--- a/toolchain/check/testdata/impl/lookup/transitive.carbon
+++ b/toolchain/check/testdata/impl/lookup/transitive.carbon
@@ -126,11 +126,11 @@ fn Call() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
@@ -146,10 +146,10 @@ fn Call() {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//i, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//i, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.507 = import_ref Main//i, loc4_33, unloaded
 // CHECK:STDOUT:   %Main.F: %I.F.type = import_ref Main//i, F, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//i, inst19 [no loc], loaded [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//i, inst19 [no loc], loaded [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -171,7 +171,7 @@ fn Call() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "i.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.507
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
@@ -221,10 +221,10 @@ fn Call() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5dd: %I.type) [from "i.carbon"] {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.72c: %I.type) [from "i.carbon"] {
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -234,10 +234,10 @@ fn Call() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%I.facet) {
@@ -306,20 +306,20 @@ fn Call() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.3f3: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.e03 [concrete]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.1b3: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.115: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.0cc: <witness> = impl_witness imports.%Destroy.impl_witness_table.170 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.434: <witness> = impl_witness imports.%Destroy.impl_witness_table.f88 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
@@ -335,22 +335,22 @@ fn Call() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Main.import_ref.8db: <witness> = import_ref Main//get, inst23 [indirect], loaded [concrete = constants.%complete_type]
 // CHECK:STDOUT:   %Main.import_ref.6a9 = import_ref Main//get, inst24 [indirect], unloaded
-// CHECK:STDOUT:   %Main.import_ref.e5d = import_ref Main//i, inst19 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.b2b = import_ref Main//i, inst19 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c44: %I.assoc_type = import_ref Main//i, loc4_33, loaded [concrete = constants.%assoc0.3f3]
 // CHECK:STDOUT:   %Main.F = import_ref Main//i, F, unloaded
 // CHECK:STDOUT:   %Main.import_ref.e03: %I.F.type = import_ref Main//i, loc4_33, loaded [concrete = constants.%I.F]
-// CHECK:STDOUT:   %Main.import_ref.5dd: %I.type = import_ref Main//i, inst19 [no loc], loaded [symbolic = constants.%Self.826]
-// CHECK:STDOUT:   %Main.import_ref.4c7: <witness> = import_ref Main//c, loc6_9, loaded [concrete = constants.%Destroy.impl_witness.0cc]
+// CHECK:STDOUT:   %Main.import_ref.72c: %I.type = import_ref Main//i, inst19 [no loc], loaded [symbolic = constants.%Self.ce4]
+// CHECK:STDOUT:   %Main.import_ref.2a4: <witness> = import_ref Main//c, loc6_9, loaded [concrete = constants.%Destroy.impl_witness.434]
 // CHECK:STDOUT:   %Main.import_ref.0ed: type = import_ref Main//c, loc6_9, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.cb9: type = import_ref Main//c, inst23 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.f0d: <witness> = import_ref Main//c, loc7_13, loaded [concrete = constants.%I.impl_witness]
+// CHECK:STDOUT:   %Main.import_ref.063: type = import_ref Main//c, inst23 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Main.import_ref.55f: <witness> = import_ref Main//c, loc7_13, loaded [concrete = constants.%I.impl_witness]
 // CHECK:STDOUT:   %Main.import_ref.29a: type = import_ref Main//c, loc7_6, loaded [concrete = constants.%C]
 // CHECK:STDOUT:   %Main.import_ref.f50: type = import_ref Main//c, loc7_11, loaded [concrete = constants.%I.type]
-// CHECK:STDOUT:   %Main.import_ref.742: %C.as.I.impl.F.type = import_ref Main//c, loc7_34, loaded [concrete = constants.%C.as.I.impl.F]
-// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.742), @C.as.I.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.d0f: %C.as.I.impl.F.type = import_ref Main//c, loc7_34, loaded [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.d0f), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Main.import_ref.2e8: %C.as.Destroy.impl.Op.type = import_ref Main//c, loc6_9, loaded [concrete = constants.%C.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.170 = impl_witness_table (%Main.import_ref.2e8), @C.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Main.import_ref.6d6: %C.as.Destroy.impl.Op.type = import_ref Main//c, loc6_9, loaded [concrete = constants.%C.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.f88 = impl_witness_table (%Main.import_ref.6d6), @C.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -367,19 +367,19 @@ fn Call() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I [from "i.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e5d
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b2b
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.c44
 // CHECK:STDOUT:   witness = (imports.%Main.F)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.cb9 [from "c.carbon"] {
+// CHECK:STDOUT: impl @C.as.Destroy.impl: imports.%Main.import_ref.0ed as imports.%Main.import_ref.063 [from "c.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.4c7
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.2a4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C.as.I.impl: imports.%Main.import_ref.29a as imports.%Main.import_ref.f50 [from "c.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Main.import_ref.f0d
+// CHECK:STDOUT:   witness = imports.%Main.import_ref.55f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @C [from "get.carbon"] {
@@ -396,7 +396,7 @@ fn Call() {
 // CHECK:STDOUT:   %Get.call: init %C = call %Get.ref() to %.loc9_7.1
 // CHECK:STDOUT:   %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   %F.ref: %I.assoc_type = name_ref F, imports.%Main.import_ref.c44 [concrete = constants.%assoc0.3f3]
-// CHECK:STDOUT:   %impl.elem0: %.1b3 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.115 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %Get.call, %impl.elem0
 // CHECK:STDOUT:   %.loc9_7.2: ref %C = temporary %.loc9_7.1, %Get.call
 // CHECK:STDOUT:   %.loc9_7.3: %C = bind_value %.loc9_7.2
@@ -409,10 +409,10 @@ fn Call() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @Get [from "get.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.5dd: %I.type) [from "i.carbon"] {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT: generic fn @I.F(imports.%Main.import_ref.72c: %I.type) [from "i.carbon"] {
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
@@ -421,9 +421,9 @@ fn Call() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op = "no_op" [from "c.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/multiple_extend.carbon b/toolchain/check/testdata/impl/multiple_extend.carbon
index ca7af2c36e6c..4cb8da9031d9 100644
--- a/toolchain/check/testdata/impl/multiple_extend.carbon
+++ b/toolchain/check/testdata/impl/multiple_extend.carbon
@@ -168,14 +168,14 @@ fn P(o: O) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [concrete]
-// CHECK:STDOUT:   %Self.f0c: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.fc4: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasF.F.type: type = fn_type @HasF.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %HasF.F: %HasF.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasF.assoc_type: type = assoc_entity_type @HasF [concrete]
 // CHECK:STDOUT:   %assoc0.97a: %HasF.assoc_type = assoc_entity element0, @HasF.%HasF.F.decl [concrete]
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [concrete]
-// CHECK:STDOUT:   %Self.d42: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.f26: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasG.G.type: type = fn_type @HasG.G [concrete]
 // CHECK:STDOUT:   %HasG.G: %HasG.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasG.assoc_type: type = assoc_entity_type @HasG [concrete]
@@ -194,8 +194,8 @@ fn P(o: O) {
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [concrete]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.a44: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
-// CHECK:STDOUT:   %.521: type = fn_type_with_self_type %HasG.G.type, %HasG.facet [concrete]
+// CHECK:STDOUT:   %.616: type = fn_type_with_self_type %HasF.F.type, %HasF.facet [concrete]
+// CHECK:STDOUT:   %.e10: type = fn_type_with_self_type %HasG.G.type, %HasG.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -219,7 +219,7 @@ fn P(o: O) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasF {
-// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f0c]
+// CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.fc4]
 // CHECK:STDOUT:   %HasF.F.decl: %HasF.F.type = fn_decl @HasF.F [concrete = constants.%HasF.F] {} {}
 // CHECK:STDOUT:   %assoc0: %HasF.assoc_type = assoc_entity element0, %HasF.F.decl [concrete = constants.%assoc0.97a]
 // CHECK:STDOUT:
@@ -232,7 +232,7 @@ fn P(o: O) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasG {
-// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.d42]
+// CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f26]
 // CHECK:STDOUT:   %HasG.G.decl: %HasG.G.type = fn_decl @HasG.G [concrete = constants.%HasG.G] {} {}
 // CHECK:STDOUT:   %assoc0: %HasG.assoc_type = assoc_entity element0, %HasG.G.decl [concrete = constants.%assoc0.319]
 // CHECK:STDOUT:
@@ -307,26 +307,26 @@ fn P(o: O) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %C.ref.loc22: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %F.ref.loc22: %HasF.assoc_type = name_ref F, @HasF.%assoc0 [concrete = constants.%assoc0.97a]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.a44 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.616 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call.loc22: init %empty_tuple.type = call %impl.elem0.loc22()
 // CHECK:STDOUT:   %c.ref.loc23: %C = name_ref c, %c
 // CHECK:STDOUT:   %F.ref.loc23: %HasF.assoc_type = name_ref F, @HasF.%assoc0 [concrete = constants.%assoc0.97a]
-// CHECK:STDOUT:   %impl.elem0.loc23: %.a44 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
+// CHECK:STDOUT:   %impl.elem0.loc23: %.616 = impl_witness_access constants.%HasF.impl_witness, element0 [concrete = constants.%C.as.HasF.impl.F]
 // CHECK:STDOUT:   %C.as.HasF.impl.F.call.loc23: init %empty_tuple.type = call %impl.elem0.loc23()
 // CHECK:STDOUT:   %C.ref.loc24: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %G.ref.loc24: %HasG.assoc_type = name_ref G, @HasG.%assoc0 [concrete = constants.%assoc0.319]
-// CHECK:STDOUT:   %impl.elem0.loc24: %.521 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%C.as.HasG.impl.G]
+// CHECK:STDOUT:   %impl.elem0.loc24: %.e10 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%C.as.HasG.impl.G]
 // CHECK:STDOUT:   %C.as.HasG.impl.G.call.loc24: init %empty_tuple.type = call %impl.elem0.loc24()
 // CHECK:STDOUT:   %c.ref.loc25: %C = name_ref c, %c
 // CHECK:STDOUT:   %G.ref.loc25: %HasG.assoc_type = name_ref G, @HasG.%assoc0 [concrete = constants.%assoc0.319]
-// CHECK:STDOUT:   %impl.elem0.loc25: %.521 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%C.as.HasG.impl.G]
+// CHECK:STDOUT:   %impl.elem0.loc25: %.e10 = impl_witness_access constants.%HasG.impl_witness, element0 [concrete = constants.%C.as.HasG.impl.G]
 // CHECK:STDOUT:   %C.as.HasG.impl.G.call.loc25: init %empty_tuple.type = call %impl.elem0.loc25()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasF.F(constants.%Self.f0c) {}
+// CHECK:STDOUT: specific @HasF.F(constants.%Self.fc4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasG.G(constants.%Self.d42) {}
+// CHECK:STDOUT: specific @HasG.G(constants.%Self.f26) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasF.F(constants.%HasF.facet) {}
 // CHECK:STDOUT:
@@ -336,13 +336,13 @@ fn P(o: O) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %HasA1.type: type = facet_type <@HasA1> [concrete]
-// CHECK:STDOUT:   %Self.90d: %HasA1.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.454: %HasA1.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasA1.A.type: type = fn_type @HasA1.A [concrete]
 // CHECK:STDOUT:   %HasA1.A: %HasA1.A.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasA1.assoc_type: type = assoc_entity_type @HasA1 [concrete]
 // CHECK:STDOUT:   %assoc0.34b: %HasA1.assoc_type = assoc_entity element0, @HasA1.%HasA1.A.decl [concrete]
 // CHECK:STDOUT:   %HasA2.type: type = facet_type <@HasA2> [concrete]
-// CHECK:STDOUT:   %Self.bdc: %HasA2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.459: %HasA2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasA2.A.type: type = fn_type @HasA2.A [concrete]
 // CHECK:STDOUT:   %HasA2.A: %HasA2.A.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasA2.assoc_type: type = assoc_entity_type @HasA2 [concrete]
@@ -384,7 +384,7 @@ fn P(o: O) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasA1 {
-// CHECK:STDOUT:   %Self: %HasA1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.90d]
+// CHECK:STDOUT:   %Self: %HasA1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.454]
 // CHECK:STDOUT:   %HasA1.A.decl: %HasA1.A.type = fn_decl @HasA1.A [concrete = constants.%HasA1.A] {} {}
 // CHECK:STDOUT:   %assoc0: %HasA1.assoc_type = assoc_entity element0, %HasA1.A.decl [concrete = constants.%assoc0.34b]
 // CHECK:STDOUT:
@@ -396,7 +396,7 @@ fn P(o: O) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasA2 {
-// CHECK:STDOUT:   %Self: %HasA2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.bdc]
+// CHECK:STDOUT:   %Self: %HasA2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.459]
 // CHECK:STDOUT:   %HasA2.A.decl: %HasA2.A.type = fn_decl @HasA2.A [concrete = constants.%HasA2.A] {} {}
 // CHECK:STDOUT:   %assoc0: %HasA2.assoc_type = assoc_entity element0, %HasA2.A.decl [concrete = constants.%assoc0.316]
 // CHECK:STDOUT:
@@ -474,9 +474,9 @@ fn P(o: O) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasA1.A(constants.%Self.90d) {}
+// CHECK:STDOUT: specific @HasA1.A(constants.%Self.454) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasA2.A(constants.%Self.bdc) {}
+// CHECK:STDOUT: specific @HasA2.A(constants.%Self.459) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasA1.A(constants.%HasA1.facet) {}
 // CHECK:STDOUT:
@@ -508,7 +508,7 @@ fn P(o: O) {
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %E [concrete]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [concrete]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.06f: type = fn_type_with_self_type %HasI.I.type, %HasI.facet [concrete]
+// CHECK:STDOUT:   %.ee4: type = fn_type_with_self_type %HasI.I.type, %HasI.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -604,11 +604,11 @@ fn P(o: O) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %E.ref.loc20: type = name_ref E, file.%E.decl [concrete = constants.%E]
 // CHECK:STDOUT:   %I.ref.loc20: %HasI.assoc_type = name_ref I, @HasI.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.06f = impl_witness_access constants.%HasI.impl_witness, element0 [concrete = constants.%E.as.HasI.impl.I]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.ee4 = impl_witness_access constants.%HasI.impl_witness, element0 [concrete = constants.%E.as.HasI.impl.I]
 // CHECK:STDOUT:   %E.as.HasI.impl.I.call.loc20: init %empty_tuple.type = call %impl.elem0.loc20()
 // CHECK:STDOUT:   %e.ref.loc21: %E = name_ref e, %e
 // CHECK:STDOUT:   %I.ref.loc21: %HasI.assoc_type = name_ref I, @HasI.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.06f = impl_witness_access constants.%HasI.impl_witness, element0 [concrete = constants.%E.as.HasI.impl.I]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.ee4 = impl_witness_access constants.%HasI.impl_witness, element0 [concrete = constants.%E.as.HasI.impl.I]
 // CHECK:STDOUT:   %E.as.HasI.impl.I.call.loc21: init %empty_tuple.type = call %impl.elem0.loc21()
 // CHECK:STDOUT:   %E.ref.loc22: type = name_ref E, file.%E.decl [concrete = constants.%E]
 // CHECK:STDOUT:   %J.ref.loc22: %B.J.type = name_ref J, @B.%B.J.decl [concrete = constants.%B.J]
@@ -759,13 +759,13 @@ fn P(o: O) {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %HasN1.type: type = facet_type <@HasN1> [concrete]
-// CHECK:STDOUT:   %Self.e0b: %HasN1.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.247: %HasN1.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasN1.N.type: type = fn_type @HasN1.N [concrete]
 // CHECK:STDOUT:   %HasN1.N: %HasN1.N.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasN1.assoc_type: type = assoc_entity_type @HasN1 [concrete]
 // CHECK:STDOUT:   %assoc0.c23: %HasN1.assoc_type = assoc_entity element0, @HasN1.%HasN1.N.decl [concrete]
 // CHECK:STDOUT:   %HasN2.type: type = facet_type <@HasN2> [concrete]
-// CHECK:STDOUT:   %Self.e6e: %HasN2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.943: %HasN2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %HasN2.N.type: type = fn_type @HasN2.N [concrete]
 // CHECK:STDOUT:   %HasN2.N: %HasN2.N.type = struct_value () [concrete]
 // CHECK:STDOUT:   %HasN2.assoc_type: type = assoc_entity_type @HasN2 [concrete]
@@ -812,7 +812,7 @@ fn P(o: O) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasN1 {
-// CHECK:STDOUT:   %Self: %HasN1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e0b]
+// CHECK:STDOUT:   %Self: %HasN1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.247]
 // CHECK:STDOUT:   %HasN1.N.decl: %HasN1.N.type = fn_decl @HasN1.N [concrete = constants.%HasN1.N] {} {}
 // CHECK:STDOUT:   %assoc0: %HasN1.assoc_type = assoc_entity element0, %HasN1.N.decl [concrete = constants.%assoc0.c23]
 // CHECK:STDOUT:
@@ -824,7 +824,7 @@ fn P(o: O) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @HasN2 {
-// CHECK:STDOUT:   %Self: %HasN2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e6e]
+// CHECK:STDOUT:   %Self: %HasN2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.943]
 // CHECK:STDOUT:   %HasN2.N.decl: %HasN2.N.type = fn_decl @HasN2.N [concrete = constants.%HasN2.N] {} {}
 // CHECK:STDOUT:   %assoc0: %HasN2.assoc_type = assoc_entity element0, %HasN2.N.decl [concrete = constants.%assoc0.7d1]
 // CHECK:STDOUT:
@@ -929,9 +929,9 @@ fn P(o: O) {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasN1.N(constants.%Self.e0b) {}
+// CHECK:STDOUT: specific @HasN1.N(constants.%Self.247) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @HasN2.N(constants.%Self.e6e) {}
+// CHECK:STDOUT: specific @HasN2.N(constants.%Self.943) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @HasN1.N(constants.%HasN1.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/no_definition_in_impl_file.carbon b/toolchain/check/testdata/impl/no_definition_in_impl_file.carbon
index bd282410679c..bad5ac0d17ee 100644
--- a/toolchain/check/testdata/impl/no_definition_in_impl_file.carbon
+++ b/toolchain/check/testdata/impl/no_definition_in_impl_file.carbon
@@ -146,7 +146,7 @@ impl () as D;
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.A: type = import_ref Main//decl_in_api_definition_in_impl, A, loaded [concrete = constants.%A.type]
-// CHECK:STDOUT:   %Main.import_ref.b61 = import_ref Main//decl_in_api_definition_in_impl, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.3b0 = import_ref Main//decl_in_api_definition_in_impl, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e5c: type = import_ref Main//decl_in_api_definition_in_impl, loc10_7, loaded [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %Main.import_ref.831: type = import_ref Main//decl_in_api_definition_in_impl, loc10_12, loaded [concrete = constants.%A.type]
 // CHECK:STDOUT: }
@@ -157,12 +157,12 @@ impl () as D;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import.loc2_46.1 = import <none>
 // CHECK:STDOUT:   %default.import.loc2_46.2 = import <none>
-// CHECK:STDOUT:   impl_decl @empty_tuple.type.as.A.impl.064930.2 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @empty_tuple.type.as.A.impl.b0635a.2 [concrete] {} {
 // CHECK:STDOUT:     %.loc8_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc8_7.2: type = converted %.loc8_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %A.ref: type = name_ref A, imports.%Main.A [concrete = constants.%A.type]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @empty_tuple.type.as.A.impl.064930.3 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @empty_tuple.type.as.A.impl.b0635a.3 [concrete] {} {
 // CHECK:STDOUT:     %.loc14_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc14_7.2: type = converted %.loc14_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %A.ref: type = name_ref A, imports.%Main.A [concrete = constants.%A.type]
@@ -171,15 +171,15 @@ impl () as D;
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A [from "fail_decl_in_api_definition_in_impl.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.b61
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.3b0
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @empty_tuple.type.as.A.impl.064930.1: imports.%Main.import_ref.e5c as imports.%Main.import_ref.831 [from "fail_decl_in_api_definition_in_impl.carbon"];
+// CHECK:STDOUT: impl @empty_tuple.type.as.A.impl.b0635a.1: imports.%Main.import_ref.e5c as imports.%Main.import_ref.831 [from "fail_decl_in_api_definition_in_impl.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @empty_tuple.type.as.A.impl.064930.2: %.loc8_7.2 as %A.ref;
+// CHECK:STDOUT: impl @empty_tuple.type.as.A.impl.b0635a.2: %.loc8_7.2 as %A.ref;
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @empty_tuple.type.as.A.impl.064930.3: %.loc14_7.2 as %A.ref {
+// CHECK:STDOUT: impl @empty_tuple.type.as.A.impl.b0635a.3: %.loc14_7.2 as %A.ref {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = <error>
 // CHECK:STDOUT: }
@@ -246,7 +246,7 @@ impl () as D;
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.B = import_ref Main//decl_only_in_api, B, unloaded
-// CHECK:STDOUT:   %Main.import_ref.420 = import_ref Main//decl_only_in_api, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d2c = import_ref Main//decl_only_in_api, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e5c: type = import_ref Main//decl_only_in_api, loc10_7, loaded [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %Main.import_ref.171: type = import_ref Main//decl_only_in_api, loc10_12, loaded [concrete = constants.%B.type]
 // CHECK:STDOUT: }
@@ -261,7 +261,7 @@ impl () as D;
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @B [from "fail_decl_only_in_api.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.420
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d2c
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -309,7 +309,7 @@ impl () as D;
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.C: type = import_ref Main//decl_in_api_decl_in_impl, C, loaded [concrete = constants.%C.type]
-// CHECK:STDOUT:   %Main.import_ref.721 = import_ref Main//decl_in_api_decl_in_impl, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.f59 = import_ref Main//decl_in_api_decl_in_impl, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e5c: type = import_ref Main//decl_in_api_decl_in_impl, loc10_7, loaded [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %Main.import_ref.653: type = import_ref Main//decl_in_api_decl_in_impl, loc10_12, loaded [concrete = constants.%C.type]
 // CHECK:STDOUT: }
@@ -320,7 +320,7 @@ impl () as D;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import.loc2_40.1 = import <none>
 // CHECK:STDOUT:   %default.import.loc2_40.2 = import <none>
-// CHECK:STDOUT:   impl_decl @empty_tuple.type.as.C.impl.590fe9.2 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @empty_tuple.type.as.C.impl.59d881.2 [concrete] {} {
 // CHECK:STDOUT:     %.loc8_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc8_7.2: type = converted %.loc8_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %C.ref: type = name_ref C, imports.%Main.C [concrete = constants.%C.type]
@@ -329,13 +329,13 @@ impl () as D;
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @C [from "fail_decl_in_api_decl_in_impl.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.721
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.f59
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @empty_tuple.type.as.C.impl.590fe9.1: imports.%Main.import_ref.e5c as imports.%Main.import_ref.653 [from "fail_decl_in_api_decl_in_impl.carbon"];
+// CHECK:STDOUT: impl @empty_tuple.type.as.C.impl.59d881.1: imports.%Main.import_ref.e5c as imports.%Main.import_ref.653 [from "fail_decl_in_api_decl_in_impl.carbon"];
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @empty_tuple.type.as.C.impl.590fe9.2: %.loc8_7.2 as %C.ref;
+// CHECK:STDOUT: impl @empty_tuple.type.as.C.impl.59d881.2: %.loc8_7.2 as %C.ref;
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- decl_only_in_impl.carbon
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/redeclaration.carbon b/toolchain/check/testdata/impl/redeclaration.carbon
index 7ee0a79a3030..0a0798f0d016 100644
--- a/toolchain/check/testdata/impl/redeclaration.carbon
+++ b/toolchain/check/testdata/impl/redeclaration.carbon
@@ -26,7 +26,7 @@ impl i32 as I {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
@@ -79,7 +79,7 @@ impl i32 as I {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/self_in_class.carbon b/toolchain/check/testdata/impl/self_in_class.carbon
index acb607bdca83..3aa4970d5f00 100644
--- a/toolchain/check/testdata/impl/self_in_class.carbon
+++ b/toolchain/check/testdata/impl/self_in_class.carbon
@@ -32,7 +32,7 @@ class A {
 // CHECK:STDOUT:   %DefaultConstructible.type: type = facet_type <@DefaultConstructible> [concrete]
 // CHECK:STDOUT:   %Self: %DefaultConstructible.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.839: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %DefaultConstructible.Make.type: type = fn_type @DefaultConstructible.Make [concrete]
 // CHECK:STDOUT:   %DefaultConstructible.Make: %DefaultConstructible.Make.type = struct_value () [concrete]
 // CHECK:STDOUT:   %DefaultConstructible.assoc_type: type = assoc_entity_type @DefaultConstructible [concrete]
@@ -63,8 +63,8 @@ class A {
 // CHECK:STDOUT: interface @DefaultConstructible {
 // CHECK:STDOUT:   %Self: %DefaultConstructible.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %DefaultConstructible.Make.decl: %DefaultConstructible.Make.type = fn_decl @DefaultConstructible.Make [concrete = constants.%DefaultConstructible.Make] {
-// CHECK:STDOUT:     %return.patt: @DefaultConstructible.Make.%pattern_type (%pattern_type.839) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @DefaultConstructible.Make.%pattern_type (%pattern_type.839) = out_param_pattern %return.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @DefaultConstructible.Make.%pattern_type (%pattern_type.a94) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @DefaultConstructible.Make.%pattern_type (%pattern_type.a94) = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %Self.ref: %DefaultConstructible.type = name_ref Self, @DefaultConstructible.%Self [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:     %Self.as_type.loc16_16.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc16_16.1 (constants.%Self.as_type)]
@@ -122,7 +122,7 @@ class A {
 // CHECK:STDOUT: generic fn @DefaultConstructible.Make(@DefaultConstructible.%Self: %DefaultConstructible.type) {
 // CHECK:STDOUT:   %Self: %DefaultConstructible.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc16_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_16.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_16.1 [symbolic = %pattern_type (constants.%pattern_type.839)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_16.1 [symbolic = %pattern_type (constants.%pattern_type.a94)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> @DefaultConstructible.Make.%Self.as_type.loc16_16.1 (%Self.as_type);
 // CHECK:STDOUT: }
@@ -138,7 +138,7 @@ class A {
 // CHECK:STDOUT: specific @DefaultConstructible.Make(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc16_16.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.839
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.a94
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @DefaultConstructible.Make(constants.%DefaultConstructible.facet) {
diff --git a/toolchain/check/testdata/impl/self_in_signature.carbon b/toolchain/check/testdata/impl/self_in_signature.carbon
index 16028b39ba9f..49c4ea5753eb 100644
--- a/toolchain/check/testdata/impl/self_in_signature.carbon
+++ b/toolchain/check/testdata/impl/self_in_signature.carbon
@@ -44,9 +44,9 @@ impl D as SelfNested {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %UseSelf.type: type = facet_type <@UseSelf> [concrete]
-// CHECK:STDOUT:   %Self.085: %UseSelf.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.599: type = facet_access_type %Self.085 [symbolic]
-// CHECK:STDOUT:   %pattern_type.3ef: type = pattern_type %Self.as_type.599 [symbolic]
+// CHECK:STDOUT:   %Self.a39: %UseSelf.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.cab: type = facet_access_type %Self.a39 [symbolic]
+// CHECK:STDOUT:   %pattern_type.df4: type = pattern_type %Self.as_type.cab [symbolic]
 // CHECK:STDOUT:   %UseSelf.F.type: type = fn_type @UseSelf.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %UseSelf.F: %UseSelf.F.type = struct_value () [concrete]
@@ -56,46 +56,46 @@ impl D as SelfNested {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %UseSelf.impl_witness.b25: <witness> = impl_witness file.%UseSelf.impl_witness_table.loc23 [concrete]
+// CHECK:STDOUT:   %UseSelf.impl_witness.6d4: <witness> = impl_witness file.%UseSelf.impl_witness_table.loc23 [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.UseSelf.impl.F.type: type = fn_type @C.as.UseSelf.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.UseSelf.impl.F: %C.as.UseSelf.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %UseSelf.facet.727: %UseSelf.type = facet_value %C, (%UseSelf.impl_witness.b25) [concrete]
+// CHECK:STDOUT:   %UseSelf.facet.1e9: %UseSelf.type = facet_value %C, (%UseSelf.impl_witness.6d4) [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %UseSelf.impl_witness.f90: <witness> = impl_witness file.%UseSelf.impl_witness_table.loc27 [concrete]
+// CHECK:STDOUT:   %UseSelf.impl_witness.306: <witness> = impl_witness file.%UseSelf.impl_witness_table.loc27 [concrete]
 // CHECK:STDOUT:   %pattern_type.510: type = pattern_type %D [concrete]
 // CHECK:STDOUT:   %D.as.UseSelf.impl.F.type: type = fn_type @D.as.UseSelf.impl.F [concrete]
 // CHECK:STDOUT:   %D.as.UseSelf.impl.F: %D.as.UseSelf.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %UseSelf.facet.d11: %UseSelf.type = facet_value %D, (%UseSelf.impl_witness.f90) [concrete]
+// CHECK:STDOUT:   %UseSelf.facet.fcb: %UseSelf.type = facet_value %D, (%UseSelf.impl_witness.306) [concrete]
 // CHECK:STDOUT:   %D.val: %D = struct_value () [concrete]
 // CHECK:STDOUT:   %SelfNested.type: type = facet_type <@SelfNested> [concrete]
-// CHECK:STDOUT:   %Self.2ff: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.e1e: type = facet_access_type %Self.2ff [symbolic]
-// CHECK:STDOUT:   %ptr.e87: type = ptr_type %Self.as_type.e1e [symbolic]
-// CHECK:STDOUT:   %struct_type.x.y.270: type = struct_type {.x: %Self.as_type.e1e, .y: %empty_tuple.type} [symbolic]
+// CHECK:STDOUT:   %Self.478: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.27a: type = facet_access_type %Self.478 [symbolic]
+// CHECK:STDOUT:   %ptr.e4e: type = ptr_type %Self.as_type.27a [symbolic]
+// CHECK:STDOUT:   %struct_type.x.y.571: type = struct_type {.x: %Self.as_type.27a, .y: %empty_tuple.type} [symbolic]
 // CHECK:STDOUT:   %tuple.type.24b: type = tuple_type (type, type) [concrete]
-// CHECK:STDOUT:   %tuple.type.46b: type = tuple_type (%ptr.e87, %struct_type.x.y.270) [symbolic]
-// CHECK:STDOUT:   %pattern_type.5a1: type = pattern_type %tuple.type.46b [symbolic]
+// CHECK:STDOUT:   %tuple.type.802: type = tuple_type (%ptr.e4e, %struct_type.x.y.571) [symbolic]
+// CHECK:STDOUT:   %pattern_type.261: type = pattern_type %tuple.type.802 [symbolic]
 // CHECK:STDOUT:   %SelfNested.F.type: type = fn_type @SelfNested.F [concrete]
 // CHECK:STDOUT:   %SelfNested.F: %SelfNested.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %SelfNested.assoc_type: type = assoc_entity_type @SelfNested [concrete]
 // CHECK:STDOUT:   %assoc0.beb: %SelfNested.assoc_type = assoc_entity element0, @SelfNested.%SelfNested.F.decl [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness.5d5: <witness> = impl_witness file.%SelfNested.impl_witness_table.loc35 [concrete]
+// CHECK:STDOUT:   %SelfNested.impl_witness.adb: <witness> = impl_witness file.%SelfNested.impl_witness_table.loc35 [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %struct_type.x.y.2f0: type = struct_type {.x: %C, .y: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %tuple.type.a17: type = tuple_type (%ptr.019, %struct_type.x.y.2f0) [concrete]
 // CHECK:STDOUT:   %pattern_type.809: type = pattern_type %tuple.type.a17 [concrete]
 // CHECK:STDOUT:   %C.as.SelfNested.impl.F.type: type = fn_type @C.as.SelfNested.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.SelfNested.impl.F: %C.as.SelfNested.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %SelfNested.facet.2b2: %SelfNested.type = facet_value %C, (%SelfNested.impl_witness.5d5) [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness.16b: <witness> = impl_witness file.%SelfNested.impl_witness_table.loc39 [concrete]
+// CHECK:STDOUT:   %SelfNested.facet.39a: %SelfNested.type = facet_value %C, (%SelfNested.impl_witness.adb) [concrete]
+// CHECK:STDOUT:   %SelfNested.impl_witness.fdf: <witness> = impl_witness file.%SelfNested.impl_witness_table.loc39 [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %struct_type.x.y.527: type = struct_type {.x: %D, .y: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %tuple.type.a5f: type = tuple_type (%ptr.19c, %struct_type.x.y.527) [concrete]
 // CHECK:STDOUT:   %pattern_type.b43: type = pattern_type %tuple.type.a5f [concrete]
 // CHECK:STDOUT:   %D.as.SelfNested.impl.F.type: type = fn_type @D.as.SelfNested.impl.F [concrete]
 // CHECK:STDOUT:   %D.as.SelfNested.impl.F: %D.as.SelfNested.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %SelfNested.facet.f2c: %SelfNested.type = facet_value %D, (%SelfNested.impl_witness.16b) [concrete]
+// CHECK:STDOUT:   %SelfNested.facet.a5d: %SelfNested.type = facet_value %D, (%SelfNested.impl_witness.fdf) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -113,57 +113,57 @@ impl D as SelfNested {
 // CHECK:STDOUT:     %UseSelf.ref: type = name_ref UseSelf, file.%UseSelf.decl [concrete = constants.%UseSelf.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %UseSelf.impl_witness_table.loc23 = impl_witness_table (@C.as.UseSelf.impl.%C.as.UseSelf.impl.F.decl), @C.as.UseSelf.impl [concrete]
-// CHECK:STDOUT:   %UseSelf.impl_witness.loc23: <witness> = impl_witness %UseSelf.impl_witness_table.loc23 [concrete = constants.%UseSelf.impl_witness.b25]
+// CHECK:STDOUT:   %UseSelf.impl_witness.loc23: <witness> = impl_witness %UseSelf.impl_witness_table.loc23 [concrete = constants.%UseSelf.impl_witness.6d4]
 // CHECK:STDOUT:   impl_decl @D.as.UseSelf.impl [concrete] {} {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %UseSelf.ref: type = name_ref UseSelf, file.%UseSelf.decl [concrete = constants.%UseSelf.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %UseSelf.impl_witness_table.loc27 = impl_witness_table (@D.as.UseSelf.impl.%D.as.UseSelf.impl.F.decl), @D.as.UseSelf.impl [concrete]
-// CHECK:STDOUT:   %UseSelf.impl_witness.loc27: <witness> = impl_witness %UseSelf.impl_witness_table.loc27 [concrete = constants.%UseSelf.impl_witness.f90]
+// CHECK:STDOUT:   %UseSelf.impl_witness.loc27: <witness> = impl_witness %UseSelf.impl_witness_table.loc27 [concrete = constants.%UseSelf.impl_witness.306]
 // CHECK:STDOUT:   %SelfNested.decl: type = interface_decl @SelfNested [concrete = constants.%SelfNested.type] {} {}
 // CHECK:STDOUT:   impl_decl @C.as.SelfNested.impl [concrete] {} {
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %SelfNested.ref: type = name_ref SelfNested, file.%SelfNested.decl [concrete = constants.%SelfNested.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %SelfNested.impl_witness_table.loc35 = impl_witness_table (@C.as.SelfNested.impl.%C.as.SelfNested.impl.F.decl), @C.as.SelfNested.impl [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness.loc35: <witness> = impl_witness %SelfNested.impl_witness_table.loc35 [concrete = constants.%SelfNested.impl_witness.5d5]
+// CHECK:STDOUT:   %SelfNested.impl_witness.loc35: <witness> = impl_witness %SelfNested.impl_witness_table.loc35 [concrete = constants.%SelfNested.impl_witness.adb]
 // CHECK:STDOUT:   impl_decl @D.as.SelfNested.impl [concrete] {} {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %SelfNested.ref: type = name_ref SelfNested, file.%SelfNested.decl [concrete = constants.%SelfNested.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %SelfNested.impl_witness_table.loc39 = impl_witness_table (@D.as.SelfNested.impl.%D.as.SelfNested.impl.F.decl), @D.as.SelfNested.impl [concrete]
-// CHECK:STDOUT:   %SelfNested.impl_witness.loc39: <witness> = impl_witness %SelfNested.impl_witness_table.loc39 [concrete = constants.%SelfNested.impl_witness.16b]
+// CHECK:STDOUT:   %SelfNested.impl_witness.loc39: <witness> = impl_witness %SelfNested.impl_witness_table.loc39 [concrete = constants.%SelfNested.impl_witness.fdf]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @UseSelf {
-// CHECK:STDOUT:   %Self: %UseSelf.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.085]
+// CHECK:STDOUT:   %Self: %UseSelf.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a39]
 // CHECK:STDOUT:   %UseSelf.F.decl: %UseSelf.F.type = fn_decl @UseSelf.F [concrete = constants.%UseSelf.F] {
-// CHECK:STDOUT:     %self.patt: @UseSelf.F.%pattern_type (%pattern_type.3ef) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @UseSelf.F.%pattern_type (%pattern_type.3ef) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %x.patt: @UseSelf.F.%pattern_type (%pattern_type.3ef) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @UseSelf.F.%pattern_type (%pattern_type.3ef) = value_param_pattern %x.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @UseSelf.F.%pattern_type (%pattern_type.3ef) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @UseSelf.F.%pattern_type (%pattern_type.3ef) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @UseSelf.F.%pattern_type (%pattern_type.df4) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @UseSelf.F.%pattern_type (%pattern_type.df4) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %x.patt: @UseSelf.F.%pattern_type (%pattern_type.df4) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @UseSelf.F.%pattern_type (%pattern_type.df4) = value_param_pattern %x.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @UseSelf.F.%pattern_type (%pattern_type.df4) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @UseSelf.F.%pattern_type (%pattern_type.df4) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc16_32: %UseSelf.type = name_ref Self, @UseSelf.%Self [symbolic = %Self (constants.%Self.085)]
-// CHECK:STDOUT:     %Self.as_type.loc16_32: type = facet_access_type %Self.ref.loc16_32 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
-// CHECK:STDOUT:     %.loc16_32: type = converted %Self.ref.loc16_32, %Self.as_type.loc16_32 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
-// CHECK:STDOUT:     %self.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599) = value_param call_param0
-// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)] {
-// CHECK:STDOUT:       %Self.ref.loc16_14: %UseSelf.type = name_ref Self, @UseSelf.%Self [symbolic = %Self (constants.%Self.085)]
-// CHECK:STDOUT:       %Self.as_type.loc16_14.2: type = facet_access_type %Self.ref.loc16_14 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
-// CHECK:STDOUT:       %.loc16_14.2: type = converted %Self.ref.loc16_14, %Self.as_type.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
+// CHECK:STDOUT:     %Self.ref.loc16_32: %UseSelf.type = name_ref Self, @UseSelf.%Self [symbolic = %Self (constants.%Self.a39)]
+// CHECK:STDOUT:     %Self.as_type.loc16_32: type = facet_access_type %Self.ref.loc16_32 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
+// CHECK:STDOUT:     %.loc16_32: type = converted %Self.ref.loc16_32, %Self.as_type.loc16_32 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
+// CHECK:STDOUT:     %self.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab) = value_param call_param0
+// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)] {
+// CHECK:STDOUT:       %Self.ref.loc16_14: %UseSelf.type = name_ref Self, @UseSelf.%Self [symbolic = %Self (constants.%Self.a39)]
+// CHECK:STDOUT:       %Self.as_type.loc16_14.2: type = facet_access_type %Self.ref.loc16_14 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
+// CHECK:STDOUT:       %.loc16_14.2: type = converted %Self.ref.loc16_14, %Self.as_type.loc16_14.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599) = bind_name self, %self.param
-// CHECK:STDOUT:     %x.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599) = value_param call_param1
-// CHECK:STDOUT:     %.loc16_23.1: type = splice_block %.loc16_23.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)] {
-// CHECK:STDOUT:       %Self.ref.loc16_23: %UseSelf.type = name_ref Self, @UseSelf.%Self [symbolic = %Self (constants.%Self.085)]
-// CHECK:STDOUT:       %Self.as_type.loc16_23: type = facet_access_type %Self.ref.loc16_23 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
-// CHECK:STDOUT:       %.loc16_23.2: type = converted %Self.ref.loc16_23, %Self.as_type.loc16_23 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
+// CHECK:STDOUT:     %self: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab) = bind_name self, %self.param
+// CHECK:STDOUT:     %x.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab) = value_param call_param1
+// CHECK:STDOUT:     %.loc16_23.1: type = splice_block %.loc16_23.2 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)] {
+// CHECK:STDOUT:       %Self.ref.loc16_23: %UseSelf.type = name_ref Self, @UseSelf.%Self [symbolic = %Self (constants.%Self.a39)]
+// CHECK:STDOUT:       %Self.as_type.loc16_23: type = facet_access_type %Self.ref.loc16_23 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
+// CHECK:STDOUT:       %.loc16_23.2: type = converted %Self.ref.loc16_23, %Self.as_type.loc16_23 [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %x: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599) = bind_name x, %x.param
-// CHECK:STDOUT:     %return.param: ref @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599) = return_slot %return.param
+// CHECK:STDOUT:     %x: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab) = bind_name x, %x.param
+// CHECK:STDOUT:     %return.param: ref @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %UseSelf.assoc_type = assoc_entity element0, %UseSelf.F.decl [concrete = constants.%assoc0.24c]
 // CHECK:STDOUT:
@@ -174,27 +174,27 @@ impl D as SelfNested {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @SelfNested {
-// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2ff]
+// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.478]
 // CHECK:STDOUT:   %SelfNested.F.decl: %SelfNested.F.type = fn_decl @SelfNested.F [concrete = constants.%SelfNested.F] {
-// CHECK:STDOUT:     %x.patt: @SelfNested.F.%pattern_type (%pattern_type.5a1) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @SelfNested.F.%pattern_type (%pattern_type.5a1) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %x.patt: @SelfNested.F.%pattern_type (%pattern_type.261) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @SelfNested.F.%pattern_type (%pattern_type.261) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %x.param: @SelfNested.F.%tuple.type (%tuple.type.46b) = value_param call_param0
-// CHECK:STDOUT:     %.loc32_37.1: type = splice_block %.loc32_37.3 [symbolic = %tuple.type (constants.%tuple.type.46b)] {
-// CHECK:STDOUT:       %Self.ref.loc32_12: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.2ff)]
-// CHECK:STDOUT:       %Self.as_type.loc32_16.2: type = facet_access_type %Self.ref.loc32_12 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:       %.loc32_16: type = converted %Self.ref.loc32_12, %Self.as_type.loc32_16.2 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:       %ptr.loc32_16.2: type = ptr_type %.loc32_16 [symbolic = %ptr.loc32_16.1 (constants.%ptr.e87)]
-// CHECK:STDOUT:       %Self.ref.loc32_24: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.2ff)]
-// CHECK:STDOUT:       %Self.as_type.loc32_24: type = facet_access_type %Self.ref.loc32_24 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:       %.loc32_24: type = converted %Self.ref.loc32_24, %Self.as_type.loc32_24 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.e1e)]
+// CHECK:STDOUT:     %x.param: @SelfNested.F.%tuple.type (%tuple.type.802) = value_param call_param0
+// CHECK:STDOUT:     %.loc32_37.1: type = splice_block %.loc32_37.3 [symbolic = %tuple.type (constants.%tuple.type.802)] {
+// CHECK:STDOUT:       %Self.ref.loc32_12: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.478)]
+// CHECK:STDOUT:       %Self.as_type.loc32_16.2: type = facet_access_type %Self.ref.loc32_12 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:       %.loc32_16: type = converted %Self.ref.loc32_12, %Self.as_type.loc32_16.2 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:       %ptr.loc32_16.2: type = ptr_type %.loc32_16 [symbolic = %ptr.loc32_16.1 (constants.%ptr.e4e)]
+// CHECK:STDOUT:       %Self.ref.loc32_24: %SelfNested.type = name_ref Self, @SelfNested.%Self [symbolic = %Self (constants.%Self.478)]
+// CHECK:STDOUT:       %Self.as_type.loc32_24: type = facet_access_type %Self.ref.loc32_24 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:       %.loc32_24: type = converted %Self.ref.loc32_24, %Self.as_type.loc32_24 [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.27a)]
 // CHECK:STDOUT:       %.loc32_35.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc32_35.2: type = converted %.loc32_35.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %struct_type.x.y.loc32_36.2: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc32_16.1 (%Self.as_type.e1e), .y: %empty_tuple.type} [symbolic = %struct_type.x.y.loc32_36.1 (constants.%struct_type.x.y.270)]
+// CHECK:STDOUT:       %struct_type.x.y.loc32_36.2: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc32_16.1 (%Self.as_type.27a), .y: %empty_tuple.type} [symbolic = %struct_type.x.y.loc32_36.1 (constants.%struct_type.x.y.571)]
 // CHECK:STDOUT:       %.loc32_37.2: %tuple.type.24b = tuple_literal (%ptr.loc32_16.2, %struct_type.x.y.loc32_36.2)
-// CHECK:STDOUT:       %.loc32_37.3: type = converted %.loc32_37.2, constants.%tuple.type.46b [symbolic = %tuple.type (constants.%tuple.type.46b)]
+// CHECK:STDOUT:       %.loc32_37.3: type = converted %.loc32_37.2, constants.%tuple.type.802 [symbolic = %tuple.type (constants.%tuple.type.802)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %x: @SelfNested.F.%tuple.type (%tuple.type.46b) = bind_name x, %x.param
+// CHECK:STDOUT:     %x: @SelfNested.F.%tuple.type (%tuple.type.802) = bind_name x, %x.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %SelfNested.assoc_type = assoc_entity element0, %SelfNested.F.decl [concrete = constants.%assoc0.beb]
 // CHECK:STDOUT:
@@ -321,11 +321,11 @@ impl D as SelfNested {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @UseSelf.F(@UseSelf.%Self: %UseSelf.type) {
-// CHECK:STDOUT:   %Self: %UseSelf.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.085)]
-// CHECK:STDOUT:   %Self.as_type.loc16_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.599)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_14.1 [symbolic = %pattern_type (constants.%pattern_type.3ef)]
+// CHECK:STDOUT:   %Self: %UseSelf.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.a39)]
+// CHECK:STDOUT:   %Self.as_type.loc16_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc16_14.1 (constants.%Self.as_type.cab)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc16_14.1 [symbolic = %pattern_type (constants.%pattern_type.df4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599), %x.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599)) -> @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.599);
+// CHECK:STDOUT:   fn(%self.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab), %x.param: @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab)) -> @UseSelf.F.%Self.as_type.loc16_14.1 (%Self.as_type.cab);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.UseSelf.impl.F(%self.param: %C, %x.param: %C) -> %return.param: %C {
@@ -345,49 +345,49 @@ impl D as SelfNested {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @SelfNested.F(@SelfNested.%Self: %SelfNested.type) {
-// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.2ff)]
-// CHECK:STDOUT:   %Self.as_type.loc32_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.e1e)]
-// CHECK:STDOUT:   %ptr.loc32_16.1: type = ptr_type %Self.as_type.loc32_16.1 [symbolic = %ptr.loc32_16.1 (constants.%ptr.e87)]
-// CHECK:STDOUT:   %struct_type.x.y.loc32_36.1: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc32_16.1 (%Self.as_type.e1e), .y: %empty_tuple.type} [symbolic = %struct_type.x.y.loc32_36.1 (constants.%struct_type.x.y.270)]
-// CHECK:STDOUT:   %tuple.type: type = tuple_type (%ptr.loc32_16.1, %struct_type.x.y.loc32_36.1) [symbolic = %tuple.type (constants.%tuple.type.46b)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %tuple.type [symbolic = %pattern_type (constants.%pattern_type.5a1)]
+// CHECK:STDOUT:   %Self: %SelfNested.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.478)]
+// CHECK:STDOUT:   %Self.as_type.loc32_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc32_16.1 (constants.%Self.as_type.27a)]
+// CHECK:STDOUT:   %ptr.loc32_16.1: type = ptr_type %Self.as_type.loc32_16.1 [symbolic = %ptr.loc32_16.1 (constants.%ptr.e4e)]
+// CHECK:STDOUT:   %struct_type.x.y.loc32_36.1: type = struct_type {.x: @SelfNested.F.%Self.as_type.loc32_16.1 (%Self.as_type.27a), .y: %empty_tuple.type} [symbolic = %struct_type.x.y.loc32_36.1 (constants.%struct_type.x.y.571)]
+// CHECK:STDOUT:   %tuple.type: type = tuple_type (%ptr.loc32_16.1, %struct_type.x.y.loc32_36.1) [symbolic = %tuple.type (constants.%tuple.type.802)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %tuple.type [symbolic = %pattern_type (constants.%pattern_type.261)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%x.param: @SelfNested.F.%tuple.type (%tuple.type.46b));
+// CHECK:STDOUT:   fn(%x.param: @SelfNested.F.%tuple.type (%tuple.type.802));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.SelfNested.impl.F(%x.param: %tuple.type.a17);
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @D.as.SelfNested.impl.F(%x.param: %tuple.type.a5f);
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @UseSelf.F(constants.%Self.085) {
-// CHECK:STDOUT:   %Self => constants.%Self.085
-// CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%Self.as_type.599
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.3ef
+// CHECK:STDOUT: specific @UseSelf.F(constants.%Self.a39) {
+// CHECK:STDOUT:   %Self => constants.%Self.a39
+// CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%Self.as_type.cab
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.df4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @UseSelf.F(constants.%UseSelf.facet.727) {
-// CHECK:STDOUT:   %Self => constants.%UseSelf.facet.727
+// CHECK:STDOUT: specific @UseSelf.F(constants.%UseSelf.facet.1e9) {
+// CHECK:STDOUT:   %Self => constants.%UseSelf.facet.1e9
 // CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%C
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c48
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @UseSelf.F(constants.%UseSelf.facet.d11) {
-// CHECK:STDOUT:   %Self => constants.%UseSelf.facet.d11
+// CHECK:STDOUT: specific @UseSelf.F(constants.%UseSelf.facet.fcb) {
+// CHECK:STDOUT:   %Self => constants.%UseSelf.facet.fcb
 // CHECK:STDOUT:   %Self.as_type.loc16_14.1 => constants.%D
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.510
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @SelfNested.F(constants.%Self.2ff) {
-// CHECK:STDOUT:   %Self => constants.%Self.2ff
-// CHECK:STDOUT:   %Self.as_type.loc32_16.1 => constants.%Self.as_type.e1e
-// CHECK:STDOUT:   %ptr.loc32_16.1 => constants.%ptr.e87
-// CHECK:STDOUT:   %struct_type.x.y.loc32_36.1 => constants.%struct_type.x.y.270
-// CHECK:STDOUT:   %tuple.type => constants.%tuple.type.46b
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.5a1
+// CHECK:STDOUT: specific @SelfNested.F(constants.%Self.478) {
+// CHECK:STDOUT:   %Self => constants.%Self.478
+// CHECK:STDOUT:   %Self.as_type.loc32_16.1 => constants.%Self.as_type.27a
+// CHECK:STDOUT:   %ptr.loc32_16.1 => constants.%ptr.e4e
+// CHECK:STDOUT:   %struct_type.x.y.loc32_36.1 => constants.%struct_type.x.y.571
+// CHECK:STDOUT:   %tuple.type => constants.%tuple.type.802
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.261
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.2b2) {
-// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.2b2
+// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.39a) {
+// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.39a
 // CHECK:STDOUT:   %Self.as_type.loc32_16.1 => constants.%C
 // CHECK:STDOUT:   %ptr.loc32_16.1 => constants.%ptr.019
 // CHECK:STDOUT:   %struct_type.x.y.loc32_36.1 => constants.%struct_type.x.y.2f0
@@ -395,8 +395,8 @@ impl D as SelfNested {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.809
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.f2c) {
-// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.f2c
+// CHECK:STDOUT: specific @SelfNested.F(constants.%SelfNested.facet.a5d) {
+// CHECK:STDOUT:   %Self => constants.%SelfNested.facet.a5d
 // CHECK:STDOUT:   %Self.as_type.loc32_16.1 => constants.%D
 // CHECK:STDOUT:   %ptr.loc32_16.1 => constants.%ptr.19c
 // CHECK:STDOUT:   %struct_type.x.y.loc32_36.1 => constants.%struct_type.x.y.527
diff --git a/toolchain/check/testdata/impl/use_assoc_const.carbon b/toolchain/check/testdata/impl/use_assoc_const.carbon
index 72c9d28b7267..7a4f1432e6c4 100644
--- a/toolchain/check/testdata/impl/use_assoc_const.carbon
+++ b/toolchain/check/testdata/impl/use_assoc_const.carbon
@@ -289,36 +289,36 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0.411: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %pattern_type.4ca: type = pattern_type %Self.as_type.3df [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.646: <witness> = lookup_impl_witness %Self.ccd, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.521: %J.type = facet_value %Self.as_type.3df, (%J.lookup_impl_witness.646) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11f: type = impl_witness_access %J.lookup_impl_witness.646, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b98: type = pattern_type %impl.elem0.11f [symbolic]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %pattern_type.059: type = pattern_type %Self.as_type.e94 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df: <witness> = lookup_impl_witness %Self.212, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276: %J.type = facet_value %Self.as_type.e94, (%J.lookup_impl_witness.0df) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2: type = impl_witness_access %J.lookup_impl_witness.0df, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a: type = pattern_type %impl.elem0.3a2 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1.572: %J.assoc_type = assoc_entity element1, @J.%J.F.decl [concrete]
-// CHECK:STDOUT:   %.Self.968: %J.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.968 [symbolic_self]
-// CHECK:STDOUT:   %J.lookup_impl_witness.25c: <witness> = lookup_impl_witness %.Self.968, @J [symbolic_self]
-// CHECK:STDOUT:   %J.facet.330: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.25c) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.83f: type = impl_witness_access %J.lookup_impl_witness.25c, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.991: %J.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.991 [symbolic_self]
+// CHECK:STDOUT:   %J.lookup_impl_witness.726: <witness> = lookup_impl_witness %.Self.991, @J [symbolic_self]
+// CHECK:STDOUT:   %J.facet.62c: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.726) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.e6f: type = impl_witness_access %J.lookup_impl_witness.726, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %J_where.type.b64: type = facet_type <@J where %impl.elem0.83f = %i32> [concrete]
-// CHECK:STDOUT:   %J.impl_witness.e42: <witness> = impl_witness file.%J.impl_witness_table.loc8 [concrete]
+// CHECK:STDOUT:   %J_where.type.3f0: type = facet_type <@J where %impl.elem0.e6f = %i32> [concrete]
+// CHECK:STDOUT:   %J.impl_witness.c38: <witness> = impl_witness file.%J.impl_witness_table.loc8 [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.J.impl.F.type: type = fn_type @empty_tuple.type.as.J.impl.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.J.impl.F: %empty_tuple.type.as.J.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.ecc: %J.type = facet_value %empty_tuple.type, (%J.impl_witness.e42) [concrete]
+// CHECK:STDOUT:   %J.facet.7dd: %J.type = facet_value %empty_tuple.type, (%J.impl_witness.c38) [concrete]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
@@ -326,45 +326,45 @@ fn F() {
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.fc5: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.8d0: %Int.as.Negate.impl.Op.type.fc5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Negate.impl_witness.943: <witness> = impl_witness imports.%Negate.impl_witness_table, @Int.as.Negate.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.66f: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.5c0: %Int.as.Negate.impl.Op.type.66f = struct_value () [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value %i32, (%Negate.impl_witness.943) [concrete]
-// CHECK:STDOUT:   %.6f0: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Negate.impl.Op.5c0, @Int.as.Negate.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.2d0: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.e54: %Int.as.Negate.impl.Op.type.2d0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Negate.impl_witness.013: <witness> = impl_witness imports.%Negate.impl_witness_table, @Int.as.Negate.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.795: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.98c: %Int.as.Negate.impl.Op.type.795 = struct_value () [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value %i32, (%Negate.impl_witness.013) [concrete]
+// CHECK:STDOUT:   %.db2: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Negate.impl.Op.98c, @Int.as.Negate.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %CallMethod.type: type = fn_type @CallMethod [concrete]
 // CHECK:STDOUT:   %CallMethod: %CallMethod.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.597: type = fn_type_with_self_type %J.F.type, %J.facet.ecc [concrete]
+// CHECK:STDOUT:   %.bfc: type = fn_type_with_self_type %J.F.type, %J.facet.7dd [concrete]
 // CHECK:STDOUT:   %int_40.f80: Core.IntLiteral = int_value 40 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_40.f80, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_40.f80, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_40.f80, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_40.518: %i32 = int_value 40 [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %J_where.type.0bc: type = facet_type <@J where %impl.elem0.83f = %C> [concrete]
-// CHECK:STDOUT:   %J.impl_witness.12d: <witness> = impl_witness file.%J.impl_witness_table.loc21 [concrete]
+// CHECK:STDOUT:   %J_where.type.a98: type = facet_type <@J where %impl.elem0.e6f = %C> [concrete]
+// CHECK:STDOUT:   %J.impl_witness.71e: <witness> = impl_witness file.%J.impl_witness_table.loc21 [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.J.impl.F.type: type = fn_type @C.as.J.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.J.impl.F: %C.as.J.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.30e: %J.type = facet_value %C, (%J.impl_witness.12d) [concrete]
+// CHECK:STDOUT:   %J.facet.00a: %J.type = facet_value %C, (%J.impl_witness.71e) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -378,11 +378,11 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Negate: type = import_ref Core//prelude/parts/int_literal, Negate, loaded [concrete = constants.%Negate.type]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.import_ref.5f5 = import_ref Core//prelude/parts/int, loc35_43, unloaded
-// CHECK:STDOUT:   %Core.import_ref.ff2: @Int.as.Negate.impl.%Int.as.Negate.impl.Op.type (%Int.as.Negate.impl.Op.type.fc5) = import_ref Core//prelude/parts/int, loc36_31, loaded [symbolic = @Int.as.Negate.impl.%Int.as.Negate.impl.Op (constants.%Int.as.Negate.impl.Op.8d0)]
-// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.5f5, %Core.import_ref.ff2), @Int.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.c4a: @Int.as.Negate.impl.%Int.as.Negate.impl.Op.type (%Int.as.Negate.impl.Op.type.2d0) = import_ref Core//prelude/parts/int, loc36_31, loaded [symbolic = @Int.as.Negate.impl.%Int.as.Negate.impl.Op (constants.%Int.as.Negate.impl.Op.e54)]
+// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.5f5, %Core.import_ref.c4a), @Int.as.Negate.impl [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
@@ -400,21 +400,21 @@ fn F() {
 // CHECK:STDOUT:     %.loc8_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc8_7.2: type = converted %.loc8_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.968]
-// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.991]
+// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:     %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc8_20: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.25c, element0 [symbolic_self = constants.%impl.elem0.83f]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.726, element0 [symbolic_self = constants.%impl.elem0.e6f]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %.loc8_14: type = where_expr %.Self [concrete = constants.%J_where.type.b64] {
+// CHECK:STDOUT:     %.loc8_14: type = where_expr %.Self [concrete = constants.%J_where.type.3f0] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%J.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %i32
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table.loc8 = impl_witness_table (%impl_witness_assoc_constant.loc8, @empty_tuple.type.as.J.impl.%empty_tuple.type.as.J.impl.F.decl), @empty_tuple.type.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness.loc8: <witness> = impl_witness %J.impl_witness_table.loc8 [concrete = constants.%J.impl_witness.e42]
+// CHECK:STDOUT:   %J.impl_witness.loc8: <witness> = impl_witness %J.impl_witness_table.loc8 [concrete = constants.%J.impl_witness.c38]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc8: type = impl_witness_assoc_constant constants.%i32 [concrete = constants.%i32]
 // CHECK:STDOUT:   %CallMethod.decl: %CallMethod.type = fn_decl @CallMethod [concrete = constants.%CallMethod] {
 // CHECK:STDOUT:     %x.patt: %pattern_type.cb1 = binding_pattern x [concrete]
@@ -437,53 +437,53 @@ fn F() {
 // CHECK:STDOUT:   impl_decl @C.as.J.impl [concrete] {} {
 // CHECK:STDOUT:     %C.ref.loc21_6: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.968]
-// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.991]
+// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:     %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc21_19: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.25c, element0 [symbolic_self = constants.%impl.elem0.83f]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.726, element0 [symbolic_self = constants.%impl.elem0.e6f]
 // CHECK:STDOUT:     %C.ref.loc21_24: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %.loc21_13: type = where_expr %.Self [concrete = constants.%J_where.type.0bc] {
+// CHECK:STDOUT:     %.loc21_13: type = where_expr %.Self [concrete = constants.%J_where.type.a98] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%J.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %C.ref.loc21_24
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.impl_witness_table.loc21 = impl_witness_table (%impl_witness_assoc_constant.loc21, @C.as.J.impl.%C.as.J.impl.F.decl), @C.as.J.impl [concrete]
-// CHECK:STDOUT:   %J.impl_witness.loc21: <witness> = impl_witness %J.impl_witness_table.loc21 [concrete = constants.%J.impl_witness.12d]
+// CHECK:STDOUT:   %J.impl_witness.loc21: <witness> = impl_witness %J.impl_witness_table.loc21 [concrete = constants.%J.impl_witness.71e]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc21: type = impl_witness_assoc_constant constants.%C [concrete = constants.%C]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %U: type = assoc_const_decl @U [concrete] {
 // CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
-// CHECK:STDOUT:     %self.patt: @J.F.%pattern_type.loc5_8 (%pattern_type.4ca) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @J.F.%pattern_type.loc5_8 (%pattern_type.4ca) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b98) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b98) = value_param_pattern %u.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b98) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b98) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @J.F.%pattern_type.loc5_8 (%pattern_type.059) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @J.F.%pattern_type.loc5_8 (%pattern_type.059) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b7a) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b7a) = value_param_pattern %u.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b7a) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type.loc5_20 (%pattern_type.b7a) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_29: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %U.ref.loc5_29: type = name_ref U, %impl.elem0.loc5_29 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %self.param: @J.F.%Self.as_type.loc5_14.1 (%Self.as_type.3df) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.3df)] {
-// CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.3df)]
-// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.3df)]
+// CHECK:STDOUT:     %impl.elem0.loc5_29: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %U.ref.loc5_29: type = name_ref U, %impl.elem0.loc5_29 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %self.param: @J.F.%Self.as_type.loc5_14.1 (%Self.as_type.e94) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.e94)] {
+// CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.e94)]
+// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.e94)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @J.F.%Self.as_type.loc5_14.1 (%Self.as_type.3df) = bind_name self, %self.param
-// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.11f) = value_param call_param1
-// CHECK:STDOUT:     %.loc5_23: type = splice_block %U.ref.loc5_23 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11f)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_23.2: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:       %U.ref.loc5_23: type = name_ref U, %impl.elem0.loc5_23.2 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11f)]
+// CHECK:STDOUT:     %self: @J.F.%Self.as_type.loc5_14.1 (%Self.as_type.e94) = bind_name self, %self.param
+// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.3a2) = value_param call_param1
+// CHECK:STDOUT:     %.loc5_23: type = splice_block %U.ref.loc5_23 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_23.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:       %U.ref.loc5_23: type = name_ref U, %impl.elem0.loc5_23.2 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.11f) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.11f) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.11f) = return_slot %return.param
+// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.3a2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.3a2) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.3a2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.F.decl [concrete = constants.%assoc1.572]
 // CHECK:STDOUT:
@@ -576,7 +576,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -585,20 +585,20 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.F(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.3df)]
-// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.4ca)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.646)]
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %impl.elem0.loc5_23.1 [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.b98)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.e94)]
+// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.059)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df)]
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %impl.elem0.loc5_23.1 [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.b7a)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @J.F.%Self.as_type.loc5_14.1 (%Self.as_type.3df), %u.param: @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.11f)) -> @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.11f);
+// CHECK:STDOUT:   fn(%self.param: @J.F.%Self.as_type.loc5_14.1 (%Self.as_type.e94), %u.param: @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.3a2)) -> @J.F.%impl.elem0.loc5_23.1 (%impl.elem0.3a2);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.J.impl.F(%self.param: %empty_tuple.type, %u.param: %i32) -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %u.ref: %i32 = name_ref u, %u
-// CHECK:STDOUT:   %impl.elem1: %.6f0 = impl_witness_access constants.%Negate.impl_witness.943, element1 [concrete = constants.%Int.as.Negate.impl.Op.5c0]
+// CHECK:STDOUT:   %impl.elem1: %.db2 = impl_witness_access constants.%Negate.impl_witness.013, element1 [concrete = constants.%Int.as.Negate.impl.Op.98c]
 // CHECK:STDOUT:   %bound_method.loc9_44.1: <bound method> = bound_method %u.ref, %impl.elem1
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem1, @Int.as.Negate.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Negate.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_44.2: <bound method> = bound_method %u.ref, %specific_fn
@@ -613,10 +613,10 @@ fn F() {
 // CHECK:STDOUT:   %x.ref: %empty_tuple.type = name_ref x, %x
 // CHECK:STDOUT:   %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   %F.ref: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1.572]
-// CHECK:STDOUT:   %impl.elem1: %.597 = impl_witness_access constants.%J.impl_witness.e42, element1 [concrete = constants.%empty_tuple.type.as.J.impl.F]
+// CHECK:STDOUT:   %impl.elem1: %.bfc = impl_witness_access constants.%J.impl_witness.c38, element1 [concrete = constants.%empty_tuple.type.as.J.impl.F]
 // CHECK:STDOUT:   %bound_method.loc13_11: <bound method> = bound_method %x.ref, %impl.elem1
 // CHECK:STDOUT:   %int_40: Core.IntLiteral = int_value 40 [concrete = constants.%int_40.f80]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc13_18.1: <bound method> = bound_method %int_40, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_18.2: <bound method> = bound_method %int_40, %specific_fn [concrete = constants.%bound_method]
@@ -637,35 +637,35 @@ fn F() {
 // CHECK:STDOUT:   return %self.ref
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @U(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.521) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.3df
-// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.4ca
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.646
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.11f
-// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.b98
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.e94
+// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.059
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.3a2
+// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.b7a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.330) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.62c) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.ecc) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.ecc
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.7dd) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.7dd
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.cb1
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness.e42
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness.c38
 // CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%i32
 // CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.7ce
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.30e) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.30e
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.00a) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.00a
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%C
 // CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.c48
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness.12d
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness.71e
 // CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%C
 // CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.c48
 // CHECK:STDOUT: }
@@ -674,71 +674,71 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0.411: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.646: <witness> = lookup_impl_witness %Self.ccd, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.521: %J.type = facet_value %Self.as_type.3df, (%J.lookup_impl_witness.646) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11f: type = impl_witness_access %J.lookup_impl_witness.646, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b98: type = pattern_type %impl.elem0.11f [symbolic]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df: <witness> = lookup_impl_witness %Self.212, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276: %J.type = facet_value %Self.as_type.e94, (%J.lookup_impl_witness.0df) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2: type = impl_witness_access %J.lookup_impl_witness.0df, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a: type = pattern_type %impl.elem0.3a2 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1.572: %J.assoc_type = assoc_entity element1, @J.%J.F.decl [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op: %D.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %.Self.968: %J.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.968 [symbolic_self]
-// CHECK:STDOUT:   %J.lookup_impl_witness.25c: <witness> = lookup_impl_witness %.Self.968, @J [symbolic_self]
-// CHECK:STDOUT:   %J.facet.330: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.25c) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.83f: type = impl_witness_access %J.lookup_impl_witness.25c, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.991: %J.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.991 [symbolic_self]
+// CHECK:STDOUT:   %J.lookup_impl_witness.726: <witness> = lookup_impl_witness %.Self.991, @J [symbolic_self]
+// CHECK:STDOUT:   %J.facet.62c: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.726) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.e6f: type = impl_witness_access %J.lookup_impl_witness.726, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.83f = %i32> [concrete]
+// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.e6f = %i32> [concrete]
 // CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness file.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %D.as.J.impl.F.type: type = fn_type @D.as.J.impl.F [concrete]
 // CHECK:STDOUT:   %D.as.J.impl.F: %D.as.J.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.183: %J.type = facet_value %D, (%J.impl_witness) [concrete]
+// CHECK:STDOUT:   %J.facet.d2a: %J.type = facet_value %D, (%J.impl_witness) [concrete]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.fc5: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.8d0: %Int.as.Negate.impl.Op.type.fc5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Negate.impl_witness.943: <witness> = impl_witness imports.%Negate.impl_witness_table, @Int.as.Negate.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.66f: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.5c0: %Int.as.Negate.impl.Op.type.66f = struct_value () [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value %i32, (%Negate.impl_witness.943) [concrete]
-// CHECK:STDOUT:   %.6f0: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Negate.impl.Op.5c0, @Int.as.Negate.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.2d0: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.e54: %Int.as.Negate.impl.Op.type.2d0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Negate.impl_witness.013: <witness> = impl_witness imports.%Negate.impl_witness_table, @Int.as.Negate.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.795: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.98c: %Int.as.Negate.impl.Op.type.795 = struct_value () [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value %i32, (%Negate.impl_witness.013) [concrete]
+// CHECK:STDOUT:   %.db2: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Negate.impl.Op.98c, @Int.as.Negate.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %CallFunction.type: type = fn_type @CallFunction [concrete]
 // CHECK:STDOUT:   %CallFunction: %CallFunction.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.490: type = fn_type_with_self_type %J.F.type, %J.facet.183 [concrete]
+// CHECK:STDOUT:   %.782: type = fn_type_with_self_type %J.F.type, %J.facet.d2a [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT: }
@@ -755,11 +755,11 @@ fn F() {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Negate: type = import_ref Core//prelude/parts/int_literal, Negate, loaded [concrete = constants.%Negate.type]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.import_ref.5f5 = import_ref Core//prelude/parts/int, loc35_43, unloaded
-// CHECK:STDOUT:   %Core.import_ref.ff2: @Int.as.Negate.impl.%Int.as.Negate.impl.Op.type (%Int.as.Negate.impl.Op.type.fc5) = import_ref Core//prelude/parts/int, loc36_31, loaded [symbolic = @Int.as.Negate.impl.%Int.as.Negate.impl.Op (constants.%Int.as.Negate.impl.Op.8d0)]
-// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.5f5, %Core.import_ref.ff2), @Int.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.c4a: @Int.as.Negate.impl.%Int.as.Negate.impl.Op.type (%Int.as.Negate.impl.Op.type.2d0) = import_ref Core//prelude/parts/int, loc36_31, loaded [symbolic = @Int.as.Negate.impl.%Int.as.Negate.impl.Op (constants.%Int.as.Negate.impl.Op.e54)]
+// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.5f5, %Core.import_ref.c4a), @Int.as.Negate.impl [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -776,12 +776,12 @@ fn F() {
 // CHECK:STDOUT:   impl_decl @D.as.J.impl [concrete] {} {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.968]
-// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.991]
+// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:     %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc10_19: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.25c, element0 [symbolic_self = constants.%impl.elem0.83f]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.726, element0 [symbolic_self = constants.%impl.elem0.e6f]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %.loc10_13: type = where_expr %.Self [concrete = constants.%J_where.type] {
@@ -804,26 +804,26 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %U: type = assoc_const_decl @U [concrete] {
 // CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
-// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b98) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b98) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b98) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b98) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b7a) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b7a) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b7a) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b7a) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = value_param call_param0
-// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
+// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = value_param call_param0
+// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = return_slot %return.param
+// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.F.decl [concrete = constants.%assoc1.572]
 // CHECK:STDOUT:
@@ -882,7 +882,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -891,12 +891,12 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.F(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.646)]
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b98)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df)]
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b7a)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f);
+// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @D.as.Destroy.impl.Op(%self.param: %ptr.19c) = "no_op";
@@ -904,7 +904,7 @@ fn F() {
 // CHECK:STDOUT: fn @D.as.J.impl.F(%u.param: %i32) -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %u.ref: %i32 = name_ref u, %u
-// CHECK:STDOUT:   %impl.elem1: %.6f0 = impl_witness_access constants.%Negate.impl_witness.943, element1 [concrete = constants.%Int.as.Negate.impl.Op.5c0]
+// CHECK:STDOUT:   %impl.elem1: %.db2 = impl_witness_access constants.%Negate.impl_witness.013, element1 [concrete = constants.%Int.as.Negate.impl.Op.98c]
 // CHECK:STDOUT:   %bound_method.loc11_32.1: <bound method> = bound_method %u.ref, %impl.elem1
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem1, @Int.as.Negate.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Negate.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc11_32.2: <bound method> = bound_method %u.ref, %specific_fn
@@ -919,11 +919,11 @@ fn F() {
 // CHECK:STDOUT:   %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:   %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   %F.ref: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1.572]
-// CHECK:STDOUT:   %J.facet: %J.type = facet_value constants.%D, (constants.%J.impl_witness) [concrete = constants.%J.facet.183]
-// CHECK:STDOUT:   %.loc15_11: %J.type = converted %D.ref, %J.facet [concrete = constants.%J.facet.183]
-// CHECK:STDOUT:   %impl.elem1: %.490 = impl_witness_access constants.%J.impl_witness, element1 [concrete = constants.%D.as.J.impl.F]
+// CHECK:STDOUT:   %J.facet: %J.type = facet_value constants.%D, (constants.%J.impl_witness) [concrete = constants.%J.facet.d2a]
+// CHECK:STDOUT:   %.loc15_11: %J.type = converted %D.ref, %J.facet [concrete = constants.%J.facet.d2a]
+// CHECK:STDOUT:   %impl.elem1: %.782 = impl_witness_access constants.%J.impl_witness, element1 [concrete = constants.%D.as.J.impl.F]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_18.1: <bound method> = bound_method %int_4, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_18.2: <bound method> = bound_method %int_4, %specific_fn [concrete = constants.%bound_method]
@@ -936,21 +936,21 @@ fn F() {
 // CHECK:STDOUT:   return %.loc15_20.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @U(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.521) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.646
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.11f
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b98
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.3a2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.330) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.62c) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.183) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.183
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.d2a) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.d2a
 // CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness
 // CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%i32
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7ce
@@ -960,33 +960,33 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0.411: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.1: <witness> = lookup_impl_witness %Self.ccd, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.1: %J.type = facet_value %Self.as_type.3df, (%J.lookup_impl_witness.64628e.1) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11fef0.1: type = impl_witness_access %J.lookup_impl_witness.64628e.1, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b984e7.1: type = pattern_type %impl.elem0.11fef0.1 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.1: <witness> = lookup_impl_witness %Self.212, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.1: %J.type = facet_value %Self.as_type.e94, (%J.lookup_impl_witness.0df834.1) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2921.1: type = impl_witness_access %J.lookup_impl_witness.0df834.1, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a83b.1: type = pattern_type %impl.elem0.3a2921.1 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1.572: %J.assoc_type = assoc_entity element1, @J.%J.F.decl [concrete]
-// CHECK:STDOUT:   %pattern_type.4ca604.1: type = pattern_type %Self.as_type.3df [symbolic]
+// CHECK:STDOUT:   %pattern_type.059556.1: type = pattern_type %Self.as_type.e94 [symbolic]
 // CHECK:STDOUT:   %J.G.type: type = fn_type @J.G [concrete]
 // CHECK:STDOUT:   %J.G: %J.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc2: %J.assoc_type = assoc_entity element2, @J.%J.G.decl [concrete]
 // CHECK:STDOUT:   %E: type = class_type @E [concrete]
-// CHECK:STDOUT:   %.Self.968: %J.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.968 [symbolic_self]
-// CHECK:STDOUT:   %J.lookup_impl_witness.25c: <witness> = lookup_impl_witness %.Self.968, @J [symbolic_self]
-// CHECK:STDOUT:   %J.facet.330: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.25c) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.83f: type = impl_witness_access %J.lookup_impl_witness.25c, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.991: %J.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.991 [symbolic_self]
+// CHECK:STDOUT:   %J.lookup_impl_witness.726: <witness> = lookup_impl_witness %.Self.991, @J [symbolic_self]
+// CHECK:STDOUT:   %J.facet.62c: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.726) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.e6f: type = impl_witness_access %J.lookup_impl_witness.726, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.83f = %i32> [concrete]
+// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.e6f = %i32> [concrete]
 // CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness @E.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %E.as.J.impl.F.type: type = fn_type @E.as.J.impl.F [concrete]
@@ -994,10 +994,10 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type.a4a: type = pattern_type %E [concrete]
 // CHECK:STDOUT:   %E.as.J.impl.G.type: type = fn_type @E.as.J.impl.G [concrete]
 // CHECK:STDOUT:   %E.as.J.impl.G: %E.as.J.impl.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.ee5: %J.type = facet_value %E, (%J.impl_witness) [concrete]
+// CHECK:STDOUT:   %J.facet.090: %J.type = facet_value %E, (%J.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c1f: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6cf: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.742: type = ptr_type %E [concrete]
 // CHECK:STDOUT:   %pattern_type.88c: type = pattern_type %ptr.742 [concrete]
 // CHECK:STDOUT:   %E.as.Destroy.impl.Op.type: type = fn_type @E.as.Destroy.impl.Op [concrete]
@@ -1011,67 +1011,67 @@ fn F() {
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.fc5: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.8d0: %Int.as.Negate.impl.Op.type.fc5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Negate.impl_witness.943: <witness> = impl_witness imports.%Negate.impl_witness_table, @Int.as.Negate.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.66f: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.5c0: %Int.as.Negate.impl.Op.type.66f = struct_value () [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value %i32, (%Negate.impl_witness.943) [concrete]
-// CHECK:STDOUT:   %.6f0: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
-// CHECK:STDOUT:   %Int.as.Negate.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Negate.impl.Op.5c0, @Int.as.Negate.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.2d0: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.e54: %Int.as.Negate.impl.Op.type.2d0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Negate.impl_witness.013: <witness> = impl_witness imports.%Negate.impl_witness_table, @Int.as.Negate.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.type.795: type = fn_type @Int.as.Negate.impl.Op, @Int.as.Negate.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.98c: %Int.as.Negate.impl.Op.type.795 = struct_value () [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value %i32, (%Negate.impl_witness.013) [concrete]
+// CHECK:STDOUT:   %.db2: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Int.as.Negate.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Negate.impl.Op.98c, @Int.as.Negate.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %CallBoth.type: type = fn_type @CallBoth [concrete]
 // CHECK:STDOUT:   %CallBoth: %CallBoth.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.29b: type = fn_type_with_self_type %J.F.type, %J.facet.ee5 [concrete]
+// CHECK:STDOUT:   %.7df: type = fn_type_with_self_type %J.F.type, %J.facet.090 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %.ff5: type = fn_type_with_self_type %J.G.type, %J.facet.ee5 [concrete]
+// CHECK:STDOUT:   %.c5d: type = fn_type_with_self_type %J.G.type, %J.facet.090 [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %int_6.462: Core.IntLiteral = int_value 6 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.efa: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.351: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_6.e56: %i32 = int_value 6 [concrete]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %J.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.28e: type = pattern_type %J.type [concrete]
+// CHECK:STDOUT:   %pattern_type.fdf: type = pattern_type %J.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.4ca604.2: type = pattern_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.2: <witness> = lookup_impl_witness %T, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.2: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.64628e.2) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11fef0.2: type = impl_witness_access %J.lookup_impl_witness.64628e.2, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b984e7.2: type = pattern_type %impl.elem0.11fef0.2 [symbolic]
+// CHECK:STDOUT:   %pattern_type.059556.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.2: <witness> = lookup_impl_witness %T, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.2: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.0df834.2) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2921.2: type = impl_witness_access %J.lookup_impl_witness.0df834.2, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a83b.2: type = pattern_type %impl.elem0.3a2921.2 [symbolic]
 // CHECK:STDOUT:   %GenericCallF.type: type = fn_type @GenericCallF [concrete]
 // CHECK:STDOUT:   %GenericCallF: %GenericCallF.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.58f: <witness> = require_complete_type %impl.elem0.11fef0.2 [symbolic]
-// CHECK:STDOUT:   %require_complete.2a5: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %.d43: type = fn_type_with_self_type %J.F.type, %J.facet.5210a7.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem1: %.d43 = impl_witness_access %J.lookup_impl_witness.64628e.2, element1 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem1, @J.F(%J.facet.5210a7.2) [symbolic]
+// CHECK:STDOUT:   %require_complete.eaa: <witness> = require_complete_type %impl.elem0.3a2921.2 [symbolic]
+// CHECK:STDOUT:   %require_complete.36f: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %.5e5: type = fn_type_with_self_type %J.F.type, %J.facet.276c17.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem1: %.5e5 = impl_witness_access %J.lookup_impl_witness.0df834.2, element1 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem1, @J.F(%J.facet.276c17.2) [symbolic]
 // CHECK:STDOUT:   %CallGeneric.type: type = fn_type @CallGeneric [concrete]
 // CHECK:STDOUT:   %CallGeneric: %CallGeneric.type = struct_value () [concrete]
-// CHECK:STDOUT:   %GenericCallF.specific_fn: <specific function> = specific_function %GenericCallF, @GenericCallF(%J.facet.ee5) [concrete]
+// CHECK:STDOUT:   %GenericCallF.specific_fn: <specific function> = specific_function %GenericCallF, @GenericCallF(%J.facet.090) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1086,11 +1086,11 @@ fn F() {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Negate: type = import_ref Core//prelude/parts/int_literal, Negate, loaded [concrete = constants.%Negate.type]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.import_ref.5f5 = import_ref Core//prelude/parts/int, loc35_43, unloaded
-// CHECK:STDOUT:   %Core.import_ref.ff2: @Int.as.Negate.impl.%Int.as.Negate.impl.Op.type (%Int.as.Negate.impl.Op.type.fc5) = import_ref Core//prelude/parts/int, loc36_31, loaded [symbolic = @Int.as.Negate.impl.%Int.as.Negate.impl.Op (constants.%Int.as.Negate.impl.Op.8d0)]
-// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.5f5, %Core.import_ref.ff2), @Int.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.c4a: @Int.as.Negate.impl.%Int.as.Negate.impl.Op.type (%Int.as.Negate.impl.Op.type.2d0) = import_ref Core//prelude/parts/int, loc36_31, loaded [symbolic = @Int.as.Negate.impl.%Int.as.Negate.impl.Op (constants.%Int.as.Negate.impl.Op.e54)]
+// CHECK:STDOUT:   %Negate.impl_witness_table = impl_witness_table (%Core.import_ref.5f5, %Core.import_ref.c4a), @Int.as.Negate.impl [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1115,19 +1115,19 @@ fn F() {
 // CHECK:STDOUT:     %e: %E = bind_name e, %e.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %GenericCallF.decl: %GenericCallF.type = fn_decl @GenericCallF [concrete = constants.%GenericCallF] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.28e = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @GenericCallF.%pattern_type.loc28_24 (%pattern_type.4ca604.2) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @GenericCallF.%pattern_type.loc28_24 (%pattern_type.4ca604.2) = value_param_pattern %t.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %u.patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b984e7.2) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b984e7.2) = value_param_pattern %u.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b984e7.2) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b984e7.2) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.fdf = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @GenericCallF.%pattern_type.loc28_24 (%pattern_type.059556.2) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @GenericCallF.%pattern_type.loc28_24 (%pattern_type.059556.2) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %u.patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b7a83b.2) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b7a83b.2) = value_param_pattern %u.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b7a83b.2) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @GenericCallF.%pattern_type.loc28_30 (%pattern_type.b7a83b.2) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc28_41: %J.type = name_ref T, %T.loc28_17.2 [symbolic = %T.loc28_17.1 (constants.%T)]
 // CHECK:STDOUT:     %U.ref.loc28_42: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:     %T.as_type.loc28_42: type = facet_access_type %T.ref.loc28_41 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc28_42: type = converted %T.ref.loc28_41, %T.as_type.loc28_42 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc28_42: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.11fef0.2)]
+// CHECK:STDOUT:     %impl.elem0.loc28_42: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.3a2921.2)]
 // CHECK:STDOUT:     %.loc28_21: type = splice_block %J.ref [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
@@ -1140,17 +1140,17 @@ fn F() {
 // CHECK:STDOUT:       %.loc28_27.2: type = converted %T.ref.loc28_27, %T.as_type.loc28_27.2 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t: @GenericCallF.%T.as_type.loc28_27.1 (%T.as_type) = bind_name t, %t.param
-// CHECK:STDOUT:     %u.param: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = value_param call_param1
-// CHECK:STDOUT:     %.loc28_34.1: type = splice_block %impl.elem0.loc28_34.2 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.11fef0.2)] {
+// CHECK:STDOUT:     %u.param: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = value_param call_param1
+// CHECK:STDOUT:     %.loc28_34.1: type = splice_block %impl.elem0.loc28_34.2 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.3a2921.2)] {
 // CHECK:STDOUT:       %T.ref.loc28_33: %J.type = name_ref T, %T.loc28_17.2 [symbolic = %T.loc28_17.1 (constants.%T)]
 // CHECK:STDOUT:       %U.ref.loc28_34: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:       %T.as_type.loc28_34: type = facet_access_type %T.ref.loc28_33 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc28_34.2: type = converted %T.ref.loc28_33, %T.as_type.loc28_34 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %impl.elem0.loc28_34.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.11fef0.2)]
+// CHECK:STDOUT:       %impl.elem0.loc28_34.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.3a2921.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = return_slot %return.param
+// CHECK:STDOUT:     %u: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %CallGeneric.decl: %CallGeneric.type = fn_decl @CallGeneric [concrete = constants.%CallGeneric] {
 // CHECK:STDOUT:     %e.patt: %pattern_type.a4a = binding_pattern e [concrete]
@@ -1169,53 +1169,53 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %U: type = assoc_const_decl @U [concrete] {
 // CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
-// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b984e7.1) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b984e7.1) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b984e7.1) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b984e7.1) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b7a83b.1) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b7a83b.1) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b7a83b.1) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b7a83b.1) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11fef0.1) = value_param call_param0
-// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11fef0.1)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11fef0.1)]
+// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2921.1) = value_param call_param0
+// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2921.1)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2921.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11fef0.1) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11fef0.1) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11fef0.1) = return_slot %return.param
+// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2921.1) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2921.1) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2921.1) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.F.decl [concrete = constants.%assoc1.572]
 // CHECK:STDOUT:   %J.G.decl: %J.G.type = fn_decl @J.G [concrete = constants.%J.G] {
-// CHECK:STDOUT:     %self.patt: @J.G.%pattern_type.loc6_8 (%pattern_type.4ca604.1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @J.G.%pattern_type.loc6_8 (%pattern_type.4ca604.1) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %v.patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b984e7.1) = binding_pattern v [concrete]
-// CHECK:STDOUT:     %v.param_patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b984e7.1) = value_param_pattern %v.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b984e7.1) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b984e7.1) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @J.G.%pattern_type.loc6_8 (%pattern_type.059556.1) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @J.G.%pattern_type.loc6_8 (%pattern_type.059556.1) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %v.patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b7a83b.1) = binding_pattern v [concrete]
+// CHECK:STDOUT:     %v.param_patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b7a83b.1) = value_param_pattern %v.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b7a83b.1) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.G.%pattern_type.loc6_20 (%pattern_type.b7a83b.1) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc6_29: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:     %U.ref.loc6_29: type = name_ref U, %impl.elem0.loc6_29 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:     %self.param: @J.G.%Self.as_type.loc6_14.1 (%Self.as_type.3df) = value_param call_param0
-// CHECK:STDOUT:     %.loc6_14.1: type = splice_block %.loc6_14.2 [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.3df)] {
-// CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:       %Self.as_type.loc6_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.3df)]
-// CHECK:STDOUT:       %.loc6_14.2: type = converted %Self.ref, %Self.as_type.loc6_14.2 [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.3df)]
+// CHECK:STDOUT:     %impl.elem0.loc6_29: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:     %U.ref.loc6_29: type = name_ref U, %impl.elem0.loc6_29 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:     %self.param: @J.G.%Self.as_type.loc6_14.1 (%Self.as_type.e94) = value_param call_param0
+// CHECK:STDOUT:     %.loc6_14.1: type = splice_block %.loc6_14.2 [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.e94)] {
+// CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:       %Self.as_type.loc6_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.e94)]
+// CHECK:STDOUT:       %.loc6_14.2: type = converted %Self.ref, %Self.as_type.loc6_14.2 [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.e94)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @J.G.%Self.as_type.loc6_14.1 (%Self.as_type.3df) = bind_name self, %self.param
-// CHECK:STDOUT:     %v.param: @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.11fef0.1) = value_param call_param1
-// CHECK:STDOUT:     %.loc6_23: type = splice_block %U.ref.loc6_23 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.11fef0.1)] {
-// CHECK:STDOUT:       %impl.elem0.loc6_23.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:       %U.ref.loc6_23: type = name_ref U, %impl.elem0.loc6_23.2 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.11fef0.1)]
+// CHECK:STDOUT:     %self: @J.G.%Self.as_type.loc6_14.1 (%Self.as_type.e94) = bind_name self, %self.param
+// CHECK:STDOUT:     %v.param: @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.3a2921.1) = value_param call_param1
+// CHECK:STDOUT:     %.loc6_23: type = splice_block %U.ref.loc6_23 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.3a2921.1)] {
+// CHECK:STDOUT:       %impl.elem0.loc6_23.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:       %U.ref.loc6_23: type = name_ref U, %impl.elem0.loc6_23.2 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.3a2921.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %v: @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.11fef0.1) = bind_name v, %v.param
-// CHECK:STDOUT:     %return.param: ref @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.11fef0.1) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.11fef0.1) = return_slot %return.param
+// CHECK:STDOUT:     %v: @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.3a2921.1) = bind_name v, %v.param
+// CHECK:STDOUT:     %return.param: ref @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.3a2921.1) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.3a2921.1) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc2: %J.assoc_type = assoc_entity element2, %J.G.decl [concrete = constants.%assoc2]
 // CHECK:STDOUT:
@@ -1298,12 +1298,12 @@ fn F() {
 // CHECK:STDOUT:   impl_decl @E.as.J.impl [concrete] {} {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%E [concrete = constants.%E]
 // CHECK:STDOUT:     %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.968]
-// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:     %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.991]
+// CHECK:STDOUT:     %.Self.ref: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:     %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc10_26: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.25c, element0 [symbolic_self = constants.%impl.elem0.83f]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.726, element0 [symbolic_self = constants.%impl.elem0.e6f]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %.loc10_20: type = where_expr %.Self [concrete = constants.%J_where.type] {
@@ -1317,7 +1317,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%E [concrete = constants.%E]
 // CHECK:STDOUT:   impl_decl @E.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@E.as.Destroy.impl.%E.as.Destroy.impl.Op.decl), @E.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.c1f]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6cf]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1330,29 +1330,29 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.F(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.1)]
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b984e7.1)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.1)]
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b7a83b.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11fef0.1)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11fef0.1);
+// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2921.1)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2921.1);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.G(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %Self.as_type.loc6_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.3df)]
-// CHECK:STDOUT:   %pattern_type.loc6_8: type = pattern_type %Self.as_type.loc6_14.1 [symbolic = %pattern_type.loc6_8 (constants.%pattern_type.4ca604.1)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.1)]
-// CHECK:STDOUT:   %impl.elem0.loc6_23.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:   %pattern_type.loc6_20: type = pattern_type %impl.elem0.loc6_23.1 [symbolic = %pattern_type.loc6_20 (constants.%pattern_type.b984e7.1)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %Self.as_type.loc6_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type.e94)]
+// CHECK:STDOUT:   %pattern_type.loc6_8: type = pattern_type %Self.as_type.loc6_14.1 [symbolic = %pattern_type.loc6_8 (constants.%pattern_type.059556.1)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.1)]
+// CHECK:STDOUT:   %impl.elem0.loc6_23.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc6_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:   %pattern_type.loc6_20: type = pattern_type %impl.elem0.loc6_23.1 [symbolic = %pattern_type.loc6_20 (constants.%pattern_type.b7a83b.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @J.G.%Self.as_type.loc6_14.1 (%Self.as_type.3df), %v.param: @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.11fef0.1)) -> @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.11fef0.1);
+// CHECK:STDOUT:   fn(%self.param: @J.G.%Self.as_type.loc6_14.1 (%Self.as_type.e94), %v.param: @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.3a2921.1)) -> @J.G.%impl.elem0.loc6_23.1 (%impl.elem0.3a2921.1);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @E.as.J.impl.F(%u.param: %i32) -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %u.ref: %i32 = name_ref u, %u
-// CHECK:STDOUT:   %impl.elem1: %.6f0 = impl_witness_access constants.%Negate.impl_witness.943, element1 [concrete = constants.%Int.as.Negate.impl.Op.5c0]
+// CHECK:STDOUT:   %impl.elem1: %.db2 = impl_witness_access constants.%Negate.impl_witness.013, element1 [concrete = constants.%Int.as.Negate.impl.Op.98c]
 // CHECK:STDOUT:   %bound_method.loc12_14.1: <bound method> = bound_method %u.ref, %impl.elem1
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem1, @Int.as.Negate.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Negate.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc12_14.2: <bound method> = bound_method %u.ref, %specific_fn
@@ -1365,7 +1365,7 @@ fn F() {
 // CHECK:STDOUT: fn @E.as.J.impl.G(%self.param: %E, %v.param: %i32) -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %v.ref: %i32 = name_ref v, %v
-// CHECK:STDOUT:   %impl.elem1: %.6f0 = impl_witness_access constants.%Negate.impl_witness.943, element1 [concrete = constants.%Int.as.Negate.impl.Op.5c0]
+// CHECK:STDOUT:   %impl.elem1: %.db2 = impl_witness_access constants.%Negate.impl_witness.013, element1 [concrete = constants.%Int.as.Negate.impl.Op.98c]
 // CHECK:STDOUT:   %bound_method.loc15_14.1: <bound method> = bound_method %v.ref, %impl.elem1
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem1, @Int.as.Negate.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Negate.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_14.2: <bound method> = bound_method %v.ref, %specific_fn
@@ -1384,12 +1384,12 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %e.ref.loc21: %E = name_ref e, %e
 // CHECK:STDOUT:   %F.ref.loc21: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1.572]
-// CHECK:STDOUT:   %impl.elem1.loc21: %.29b = impl_witness_access constants.%J.impl_witness, element1 [concrete = constants.%E.as.J.impl.F]
+// CHECK:STDOUT:   %impl.elem1.loc21: %.7df = impl_witness_access constants.%J.impl_witness, element1 [concrete = constants.%E.as.J.impl.F]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_21.1: <bound method> = bound_method %int_2, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_21.1: <bound method> = bound_method %int_2, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc21: <specific function> = specific_function %impl.elem0.loc21, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_21.2: <bound method> = bound_method %int_2, %specific_fn.loc21 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc21_21.2: <bound method> = bound_method %int_2, %specific_fn.loc21 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21: init %i32 = call %bound_method.loc21_21.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc21_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc21_21.2: %i32 = converted %int_2, %.loc21_21.1 [concrete = constants.%int_2.ef8]
@@ -1406,13 +1406,13 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %e.ref.loc22: %E = name_ref e, %e
 // CHECK:STDOUT:   %G.ref.loc22: %J.assoc_type = name_ref G, @J.%assoc2 [concrete = constants.%assoc2]
-// CHECK:STDOUT:   %impl.elem2.loc22: %.ff5 = impl_witness_access constants.%J.impl_witness, element2 [concrete = constants.%E.as.J.impl.G]
+// CHECK:STDOUT:   %impl.elem2.loc22: %.c5d = impl_witness_access constants.%J.impl_witness, element2 [concrete = constants.%E.as.J.impl.G]
 // CHECK:STDOUT:   %bound_method.loc22_18: <bound method> = bound_method %e.ref.loc22, %impl.elem2.loc22
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_21.1: <bound method> = bound_method %int_3, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_21.1: <bound method> = bound_method %int_3, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_21.2: <bound method> = bound_method %int_3, %specific_fn.loc22 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc22_21.2: <bound method> = bound_method %int_3, %specific_fn.loc22 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22: init %i32 = call %bound_method.loc22_21.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc22_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc22_21.2: %i32 = converted %int_3, %.loc22_21.1 [concrete = constants.%int_3.822]
@@ -1429,12 +1429,12 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %E.ref.loc23: type = name_ref E, file.%E.decl [concrete = constants.%E]
 // CHECK:STDOUT:   %F.ref.loc23: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1.572]
-// CHECK:STDOUT:   %impl.elem1.loc23: %.29b = impl_witness_access constants.%J.impl_witness, element1 [concrete = constants.%E.as.J.impl.F]
+// CHECK:STDOUT:   %impl.elem1.loc23: %.7df = impl_witness_access constants.%J.impl_witness, element1 [concrete = constants.%E.as.J.impl.F]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_21.1: <bound method> = bound_method %int_4, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc23: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_21.1: <bound method> = bound_method %int_4, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc23: <specific function> = specific_function %impl.elem0.loc23, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_21.2: <bound method> = bound_method %int_4, %specific_fn.loc23 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc23_21.2: <bound method> = bound_method %int_4, %specific_fn.loc23 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23: init %i32 = call %bound_method.loc23_21.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc23_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc23_21.2: %i32 = converted %int_4, %.loc23_21.1 [concrete = constants.%int_4.940]
@@ -1452,13 +1452,13 @@ fn F() {
 // CHECK:STDOUT:   %e.ref.loc24: %E = name_ref e, %e
 // CHECK:STDOUT:   %E.ref.loc24: type = name_ref E, file.%E.decl [concrete = constants.%E]
 // CHECK:STDOUT:   %G.ref.loc24: %J.assoc_type = name_ref G, @J.%assoc2 [concrete = constants.%assoc2]
-// CHECK:STDOUT:   %impl.elem2.loc24: %.ff5 = impl_witness_access constants.%J.impl_witness, element2 [concrete = constants.%E.as.J.impl.G]
+// CHECK:STDOUT:   %impl.elem2.loc24: %.c5d = impl_witness_access constants.%J.impl_witness, element2 [concrete = constants.%E.as.J.impl.G]
 // CHECK:STDOUT:   %bound_method.loc24_18: <bound method> = bound_method %e.ref.loc24, %impl.elem2.loc24
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
-// CHECK:STDOUT:   %impl.elem0.loc24: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc24_25.1: <bound method> = bound_method %int_5, %impl.elem0.loc24 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc24: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc24_25.1: <bound method> = bound_method %int_5, %impl.elem0.loc24 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc24: <specific function> = specific_function %impl.elem0.loc24, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc24_25.2: <bound method> = bound_method %int_5, %specific_fn.loc24 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc24_25.2: <bound method> = bound_method %int_5, %specific_fn.loc24 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc24: init %i32 = call %bound_method.loc24_25.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc24_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc24 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc24_25.2: %i32 = converted %int_5, %.loc24_25.1 [concrete = constants.%int_5.0f6]
@@ -1476,13 +1476,13 @@ fn F() {
 // CHECK:STDOUT:   %e.ref.loc25: %E = name_ref e, %e
 // CHECK:STDOUT:   %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:   %G.ref.loc25: %J.assoc_type = name_ref G, @J.%assoc2 [concrete = constants.%assoc2]
-// CHECK:STDOUT:   %impl.elem2.loc25: %.ff5 = impl_witness_access constants.%J.impl_witness, element2 [concrete = constants.%E.as.J.impl.G]
+// CHECK:STDOUT:   %impl.elem2.loc25: %.c5d = impl_witness_access constants.%J.impl_witness, element2 [concrete = constants.%E.as.J.impl.G]
 // CHECK:STDOUT:   %bound_method.loc25_18: <bound method> = bound_method %e.ref.loc25, %impl.elem2.loc25
 // CHECK:STDOUT:   %int_6: Core.IntLiteral = int_value 6 [concrete = constants.%int_6.462]
-// CHECK:STDOUT:   %impl.elem0.loc25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc25_25.1: <bound method> = bound_method %int_6, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9]
+// CHECK:STDOUT:   %impl.elem0.loc25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc25_25.1: <bound method> = bound_method %int_6, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5]
 // CHECK:STDOUT:   %specific_fn.loc25: <specific function> = specific_function %impl.elem0.loc25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc25_25.2: <bound method> = bound_method %int_6, %specific_fn.loc25 [concrete = constants.%bound_method.efa]
+// CHECK:STDOUT:   %bound_method.loc25_25.2: <bound method> = bound_method %int_6, %specific_fn.loc25 [concrete = constants.%bound_method.351]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25: init %i32 = call %bound_method.loc25_25.2(%int_6) [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %.loc25_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25 [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %.loc25_25.2: %i32 = converted %int_6, %.loc25_25.1 [concrete = constants.%int_6.e56]
@@ -1500,31 +1500,31 @@ fn F() {
 // CHECK:STDOUT: generic fn @GenericCallF(%T.loc28_17.2: %J.type) {
 // CHECK:STDOUT:   %T.loc28_17.1: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc28_17.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc28_27.1: type = facet_access_type %T.loc28_17.1 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc28_24: type = pattern_type %T.as_type.loc28_27.1 [symbolic = %pattern_type.loc28_24 (constants.%pattern_type.4ca604.2)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc28_17.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.2)]
-// CHECK:STDOUT:   %impl.elem0.loc28_34.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.11fef0.2)]
-// CHECK:STDOUT:   %pattern_type.loc28_30: type = pattern_type %impl.elem0.loc28_34.1 [symbolic = %pattern_type.loc28_30 (constants.%pattern_type.b984e7.2)]
+// CHECK:STDOUT:   %pattern_type.loc28_24: type = pattern_type %T.as_type.loc28_27.1 [symbolic = %pattern_type.loc28_24 (constants.%pattern_type.059556.2)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc28_17.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.2)]
+// CHECK:STDOUT:   %impl.elem0.loc28_34.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_34.1 (constants.%impl.elem0.3a2921.2)]
+// CHECK:STDOUT:   %pattern_type.loc28_30: type = pattern_type %impl.elem0.loc28_34.1 [symbolic = %pattern_type.loc28_30 (constants.%pattern_type.b7a83b.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc28_38: <witness> = require_complete_type %impl.elem0.loc28_34.1 [symbolic = %require_complete.loc28_38 (constants.%require_complete.58f)]
-// CHECK:STDOUT:   %require_complete.loc28_25: <witness> = require_complete_type %T.as_type.loc28_27.1 [symbolic = %require_complete.loc28_25 (constants.%require_complete.2a5)]
-// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc28_27.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.5210a7.2)]
-// CHECK:STDOUT:   %.loc29_11.2: type = fn_type_with_self_type constants.%J.F.type, %J.facet [symbolic = %.loc29_11.2 (constants.%.d43)]
-// CHECK:STDOUT:   %impl.elem1.loc29_11.2: @GenericCallF.%.loc29_11.2 (%.d43) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc29_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:   %require_complete.loc28_38: <witness> = require_complete_type %impl.elem0.loc28_34.1 [symbolic = %require_complete.loc28_38 (constants.%require_complete.eaa)]
+// CHECK:STDOUT:   %require_complete.loc28_25: <witness> = require_complete_type %T.as_type.loc28_27.1 [symbolic = %require_complete.loc28_25 (constants.%require_complete.36f)]
+// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc28_27.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.276c17.2)]
+// CHECK:STDOUT:   %.loc29_11.2: type = fn_type_with_self_type constants.%J.F.type, %J.facet [symbolic = %.loc29_11.2 (constants.%.5e5)]
+// CHECK:STDOUT:   %impl.elem1.loc29_11.2: @GenericCallF.%.loc29_11.2 (%.5e5) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc29_11.2 (constants.%impl.elem1)]
 // CHECK:STDOUT:   %specific_impl_fn.loc29_11.2: <specific function> = specific_impl_function %impl.elem1.loc29_11.2, @J.F(%J.facet) [symbolic = %specific_impl_fn.loc29_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%t.param: @GenericCallF.%T.as_type.loc28_27.1 (%T.as_type), %u.param: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2)) -> @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) {
+// CHECK:STDOUT:   fn(%t.param: @GenericCallF.%T.as_type.loc28_27.1 (%T.as_type), %u.param: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2)) -> @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref: @GenericCallF.%T.as_type.loc28_27.1 (%T.as_type) = name_ref t, %t
 // CHECK:STDOUT:     %F.ref: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1.572]
 // CHECK:STDOUT:     %T.as_type.loc29: type = facet_access_type constants.%T [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc29_11.1: type = converted constants.%T, %T.as_type.loc29 [symbolic = %T.as_type.loc28_27.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem1.loc29_11.1: @GenericCallF.%.loc29_11.2 (%.d43) = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element1 [symbolic = %impl.elem1.loc29_11.2 (constants.%impl.elem1)]
-// CHECK:STDOUT:     %u.ref: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = name_ref u, %u
-// CHECK:STDOUT:     %specific_impl_fn.loc29_11.1: <specific function> = specific_impl_function %impl.elem1.loc29_11.1, @J.F(constants.%J.facet.5210a7.2) [symbolic = %specific_impl_fn.loc29_11.2 (constants.%specific_impl_fn)]
-// CHECK:STDOUT:     %.loc29_15: init @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = call %specific_impl_fn.loc29_11.1(%u.ref)
-// CHECK:STDOUT:     %.loc29_16.1: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = value_of_initializer %.loc29_15
-// CHECK:STDOUT:     %.loc29_16.2: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.11fef0.2) = converted %.loc29_15, %.loc29_16.1
+// CHECK:STDOUT:     %impl.elem1.loc29_11.1: @GenericCallF.%.loc29_11.2 (%.5e5) = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element1 [symbolic = %impl.elem1.loc29_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:     %u.ref: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = name_ref u, %u
+// CHECK:STDOUT:     %specific_impl_fn.loc29_11.1: <specific function> = specific_impl_function %impl.elem1.loc29_11.1, @J.F(constants.%J.facet.276c17.2) [symbolic = %specific_impl_fn.loc29_11.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %.loc29_15: init @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = call %specific_impl_fn.loc29_11.1(%u.ref)
+// CHECK:STDOUT:     %.loc29_16.1: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = value_of_initializer %.loc29_15
+// CHECK:STDOUT:     %.loc29_16.2: @GenericCallF.%impl.elem0.loc28_34.1 (%impl.elem0.3a2921.2) = converted %.loc29_15, %.loc29_16.1
 // CHECK:STDOUT:     return %.loc29_16.2
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -1534,15 +1534,15 @@ fn F() {
 // CHECK:STDOUT:   %GenericCallF.ref: %GenericCallF.type = name_ref GenericCallF, file.%GenericCallF.decl [concrete = constants.%GenericCallF]
 // CHECK:STDOUT:   %e.ref: %E = name_ref e, %e
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %J.facet.loc33_27.1: %J.type = facet_value constants.%E, (constants.%J.impl_witness) [concrete = constants.%J.facet.ee5]
-// CHECK:STDOUT:   %.loc33_27.1: %J.type = converted constants.%E, %J.facet.loc33_27.1 [concrete = constants.%J.facet.ee5]
-// CHECK:STDOUT:   %J.facet.loc33_27.2: %J.type = facet_value constants.%E, (constants.%J.impl_witness) [concrete = constants.%J.facet.ee5]
-// CHECK:STDOUT:   %.loc33_27.2: %J.type = converted constants.%E, %J.facet.loc33_27.2 [concrete = constants.%J.facet.ee5]
-// CHECK:STDOUT:   %GenericCallF.specific_fn: <specific function> = specific_function %GenericCallF.ref, @GenericCallF(constants.%J.facet.ee5) [concrete = constants.%GenericCallF.specific_fn]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc33_26.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %J.facet.loc33_27.1: %J.type = facet_value constants.%E, (constants.%J.impl_witness) [concrete = constants.%J.facet.090]
+// CHECK:STDOUT:   %.loc33_27.1: %J.type = converted constants.%E, %J.facet.loc33_27.1 [concrete = constants.%J.facet.090]
+// CHECK:STDOUT:   %J.facet.loc33_27.2: %J.type = facet_value constants.%E, (constants.%J.impl_witness) [concrete = constants.%J.facet.090]
+// CHECK:STDOUT:   %.loc33_27.2: %J.type = converted constants.%E, %J.facet.loc33_27.2 [concrete = constants.%J.facet.090]
+// CHECK:STDOUT:   %GenericCallF.specific_fn: <specific function> = specific_function %GenericCallF.ref, @GenericCallF(constants.%J.facet.090) [concrete = constants.%GenericCallF.specific_fn]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc33_26.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc33_26.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc33_26.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc33_26.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc33_26.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc33_26.2: %i32 = converted %int_2, %.loc33_26.1 [concrete = constants.%int_2.ef8]
@@ -1552,37 +1552,37 @@ fn F() {
 // CHECK:STDOUT:   return %.loc33_28.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @U(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.1) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.1) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.1
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.11fef0.1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b984e7.1
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.1
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.3a2921.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a83b.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.G(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %Self.as_type.loc6_14.1 => constants.%Self.as_type.3df
-// CHECK:STDOUT:   %pattern_type.loc6_8 => constants.%pattern_type.4ca604.1
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.1
-// CHECK:STDOUT:   %impl.elem0.loc6_23.1 => constants.%impl.elem0.11fef0.1
-// CHECK:STDOUT:   %pattern_type.loc6_20 => constants.%pattern_type.b984e7.1
+// CHECK:STDOUT: specific @J.G(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %Self.as_type.loc6_14.1 => constants.%Self.as_type.e94
+// CHECK:STDOUT:   %pattern_type.loc6_8 => constants.%pattern_type.059556.1
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.1
+// CHECK:STDOUT:   %impl.elem0.loc6_23.1 => constants.%impl.elem0.3a2921.1
+// CHECK:STDOUT:   %pattern_type.loc6_20 => constants.%pattern_type.b7a83b.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.330) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.62c) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.ee5) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.ee5
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.090) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.090
 // CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness
 // CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%i32
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7ce
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.G(constants.%J.facet.ee5) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.ee5
+// CHECK:STDOUT: specific @J.G(constants.%J.facet.090) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.090
 // CHECK:STDOUT:   %Self.as_type.loc6_14.1 => constants.%E
 // CHECK:STDOUT:   %pattern_type.loc6_8 => constants.%pattern_type.a4a
 // CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness
@@ -1590,26 +1590,26 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type.loc6_20 => constants.%pattern_type.7ce
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.2) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.2) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericCallF(constants.%T) {
 // CHECK:STDOUT:   %T.loc28_17.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc28_27.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc28_24 => constants.%pattern_type.4ca604.2
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc28_34.1 => constants.%impl.elem0.11fef0.2
-// CHECK:STDOUT:   %pattern_type.loc28_30 => constants.%pattern_type.b984e7.2
+// CHECK:STDOUT:   %pattern_type.loc28_24 => constants.%pattern_type.059556.2
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc28_34.1 => constants.%impl.elem0.3a2921.2
+// CHECK:STDOUT:   %pattern_type.loc28_30 => constants.%pattern_type.b7a83b.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.5210a7.2) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.5210a7.2
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.11fef0.2
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b984e7.2
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.276c17.2) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.276c17.2
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.3a2921.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a83b.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @GenericCallF(constants.%J.facet.ee5) {
-// CHECK:STDOUT:   %T.loc28_17.1 => constants.%J.facet.ee5
+// CHECK:STDOUT: specific @GenericCallF(constants.%J.facet.090) {
+// CHECK:STDOUT:   %T.loc28_17.1 => constants.%J.facet.090
 // CHECK:STDOUT:   %T.as_type.loc28_27.1 => constants.%E
 // CHECK:STDOUT:   %pattern_type.loc28_24 => constants.%pattern_type.a4a
 // CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness
@@ -1619,8 +1619,8 @@ fn F() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc28_38 => constants.%complete_type.f8a
 // CHECK:STDOUT:   %require_complete.loc28_25 => constants.%complete_type.357
-// CHECK:STDOUT:   %J.facet => constants.%J.facet.ee5
-// CHECK:STDOUT:   %.loc29_11.2 => constants.%.29b
+// CHECK:STDOUT:   %J.facet => constants.%J.facet.090
+// CHECK:STDOUT:   %.loc29_11.2 => constants.%.7df
 // CHECK:STDOUT:   %impl.elem1.loc29_11.2 => constants.%E.as.J.impl.F
 // CHECK:STDOUT:   %specific_impl_fn.loc29_11.2 => constants.%E.as.J.impl.F
 // CHECK:STDOUT: }
@@ -1629,48 +1629,48 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %I.Op.type: type = fn_type @I.Op [concrete]
 // CHECK:STDOUT:   %I.Op: %I.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.ea8: %I.assoc_type = assoc_entity element0, @I.%I.Op.decl [concrete]
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
-// CHECK:STDOUT:   %assoc0.5be: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.1: <witness> = lookup_impl_witness %Self.ccd, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.1: %J.type = facet_value %Self.as_type.3df, (%J.lookup_impl_witness.64628e.1) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.5205fd.1: %I.type = impl_witness_access %J.lookup_impl_witness.64628e.1, element0 [symbolic]
-// CHECK:STDOUT:   %as_type.f5d8f3.1: type = facet_access_type %impl.elem0.5205fd.1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.74afd4.1: type = pattern_type %as_type.f5d8f3.1 [symbolic]
+// CHECK:STDOUT:   %assoc0.a22: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.1: <witness> = lookup_impl_witness %Self.212, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.1: %J.type = facet_value %Self.as_type.e94, (%J.lookup_impl_witness.0df834.1) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.40d6b2.1: %I.type = impl_witness_access %J.lookup_impl_witness.0df834.1, element0 [symbolic]
+// CHECK:STDOUT:   %as_type.f6fdf9.1: type = facet_access_type %impl.elem0.40d6b2.1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.ebc412.1: type = pattern_type %as_type.f6fdf9.1 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, @J.%J.F.decl [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %J.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.28e: type = pattern_type %J.type [concrete]
+// CHECK:STDOUT:   %pattern_type.fdf: type = pattern_type %J.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.4ca: type = pattern_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.2: <witness> = lookup_impl_witness %T, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.2: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.64628e.2) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.5205fd.2: %I.type = impl_witness_access %J.lookup_impl_witness.64628e.2, element0 [symbolic]
-// CHECK:STDOUT:   %as_type.f5d8f3.2: type = facet_access_type %impl.elem0.5205fd.2 [symbolic]
-// CHECK:STDOUT:   %pattern_type.74afd4.2: type = pattern_type %as_type.f5d8f3.2 [symbolic]
+// CHECK:STDOUT:   %pattern_type.059: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.2: <witness> = lookup_impl_witness %T, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.2: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.0df834.2) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.40d6b2.2: %I.type = impl_witness_access %J.lookup_impl_witness.0df834.2, element0 [symbolic]
+// CHECK:STDOUT:   %as_type.f6fdf9.2: type = facet_access_type %impl.elem0.40d6b2.2 [symbolic]
+// CHECK:STDOUT:   %pattern_type.ebc412.2: type = pattern_type %as_type.f6fdf9.2 [symbolic]
 // CHECK:STDOUT:   %GenericResult.type: type = fn_type @GenericResult [concrete]
 // CHECK:STDOUT:   %GenericResult: %GenericResult.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.b33: <witness> = require_complete_type %as_type.f5d8f3.2 [symbolic]
-// CHECK:STDOUT:   %require_complete.2a5: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %.d43: type = fn_type_with_self_type %J.F.type, %J.facet.5210a7.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem1: %.d43 = impl_witness_access %J.lookup_impl_witness.64628e.2, element1 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.fe8: <specific function> = specific_impl_function %impl.elem1, @J.F(%J.facet.5210a7.2) [symbolic]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %impl.elem0.5205fd.2, @I [symbolic]
-// CHECK:STDOUT:   %I.facet: %I.type = facet_value %as_type.f5d8f3.2, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.c9a: type = fn_type_with_self_type %I.Op.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0.45a: %.c9a = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.2ec: <specific function> = specific_impl_function %impl.elem0.45a, @I.Op(%I.facet) [symbolic]
+// CHECK:STDOUT:   %require_complete.6ea: <witness> = require_complete_type %as_type.f6fdf9.2 [symbolic]
+// CHECK:STDOUT:   %require_complete.36f: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %.5e5: type = fn_type_with_self_type %J.F.type, %J.facet.276c17.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem1: %.5e5 = impl_witness_access %J.lookup_impl_witness.0df834.2, element1 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.36a: <specific function> = specific_impl_function %impl.elem1, @J.F(%J.facet.276c17.2) [symbolic]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %impl.elem0.40d6b2.2, @I [symbolic]
+// CHECK:STDOUT:   %I.facet: %I.type = facet_value %as_type.f6fdf9.2, (%I.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.703: type = fn_type_with_self_type %I.Op.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0.8cb: %.703 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.d32: <specific function> = specific_impl_function %impl.elem0.8cb, @I.Op(%I.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1691,21 +1691,21 @@ fn F() {
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
 // CHECK:STDOUT:   %GenericResult.decl: %GenericResult.type = fn_decl @GenericResult [concrete = constants.%GenericResult] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.28e = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @GenericResult.%pattern_type.loc12_25 (%pattern_type.4ca) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @GenericResult.%pattern_type.loc12_25 (%pattern_type.4ca) = value_param_pattern %t.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %u.patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.74afd4.2) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.74afd4.2) = value_param_pattern %u.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.74afd4.2) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.74afd4.2) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.fdf = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @GenericResult.%pattern_type.loc12_25 (%pattern_type.059) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @GenericResult.%pattern_type.loc12_25 (%pattern_type.059) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %u.patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.ebc412.2) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.ebc412.2) = value_param_pattern %u.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.ebc412.2) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @GenericResult.%pattern_type.loc12_31 (%pattern_type.ebc412.2) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc12_42: %J.type = name_ref T, %T.loc12_18.2 [symbolic = %T.loc12_18.1 (constants.%T)]
-// CHECK:STDOUT:     %U.ref.loc12_43: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.5be]
+// CHECK:STDOUT:     %U.ref.loc12_43: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.a22]
 // CHECK:STDOUT:     %T.as_type.loc12_43: type = facet_access_type %T.ref.loc12_42 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc12_43.1: type = converted %T.ref.loc12_42, %T.as_type.loc12_43 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc12_43: %I.type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %as_type.loc12_43: type = facet_access_type %impl.elem0.loc12_43 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f5d8f3.2)]
-// CHECK:STDOUT:     %.loc12_43.2: type = converted %impl.elem0.loc12_43, %as_type.loc12_43 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f5d8f3.2)]
+// CHECK:STDOUT:     %impl.elem0.loc12_43: %I.type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %as_type.loc12_43: type = facet_access_type %impl.elem0.loc12_43 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f6fdf9.2)]
+// CHECK:STDOUT:     %.loc12_43.2: type = converted %impl.elem0.loc12_43, %as_type.loc12_43 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f6fdf9.2)]
 // CHECK:STDOUT:     %.loc12_22: type = splice_block %J.ref [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
@@ -1718,51 +1718,51 @@ fn F() {
 // CHECK:STDOUT:       %.loc12_28.2: type = converted %T.ref.loc12_28, %T.as_type.loc12_28.2 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t: @GenericResult.%T.as_type.loc12_28.1 (%T.as_type) = bind_name t, %t.param
-// CHECK:STDOUT:     %u.param: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = value_param call_param1
-// CHECK:STDOUT:     %.loc12_35.1: type = splice_block %.loc12_35.3 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f5d8f3.2)] {
+// CHECK:STDOUT:     %u.param: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = value_param call_param1
+// CHECK:STDOUT:     %.loc12_35.1: type = splice_block %.loc12_35.3 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f6fdf9.2)] {
 // CHECK:STDOUT:       %T.ref.loc12_34: %J.type = name_ref T, %T.loc12_18.2 [symbolic = %T.loc12_18.1 (constants.%T)]
-// CHECK:STDOUT:       %U.ref.loc12_35: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.5be]
+// CHECK:STDOUT:       %U.ref.loc12_35: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.a22]
 // CHECK:STDOUT:       %T.as_type.loc12_35: type = facet_access_type %T.ref.loc12_34 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc12_35.2: type = converted %T.ref.loc12_34, %T.as_type.loc12_35 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %impl.elem0.loc12_35.2: %I.type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:       %as_type.loc12_35.2: type = facet_access_type %impl.elem0.loc12_35.2 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f5d8f3.2)]
-// CHECK:STDOUT:       %.loc12_35.3: type = converted %impl.elem0.loc12_35.2, %as_type.loc12_35.2 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f5d8f3.2)]
+// CHECK:STDOUT:       %impl.elem0.loc12_35.2: %I.type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:       %as_type.loc12_35.2: type = facet_access_type %impl.elem0.loc12_35.2 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f6fdf9.2)]
+// CHECK:STDOUT:       %.loc12_35.3: type = converted %impl.elem0.loc12_35.2, %as_type.loc12_35.2 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f6fdf9.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = return_slot %return.param
+// CHECK:STDOUT:     %u: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.Op.decl: %I.Op.type = fn_decl @I.Op [concrete = constants.%I.Op] {
-// CHECK:STDOUT:     %self.patt: @I.Op.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.Op.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %b.patt: @I.Op.%pattern_type (%pattern_type.6de) = binding_pattern b [concrete]
-// CHECK:STDOUT:     %b.param_patt: @I.Op.%pattern_type (%pattern_type.6de) = value_param_pattern %b.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @I.Op.%pattern_type (%pattern_type.6de) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @I.Op.%pattern_type (%pattern_type.6de) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.Op.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.Op.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %b.patt: @I.Op.%pattern_type (%pattern_type.802) = binding_pattern b [concrete]
+// CHECK:STDOUT:     %b.param_patt: @I.Op.%pattern_type (%pattern_type.802) = value_param_pattern %b.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @I.Op.%pattern_type (%pattern_type.802) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @I.Op.%pattern_type (%pattern_type.802) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc4_33: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:     %Self.as_type.loc4_33: type = facet_access_type %Self.ref.loc4_33 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:     %.loc4_33: type = converted %Self.ref.loc4_33, %Self.as_type.loc4_33 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:     %self.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc4_15.1: type = splice_block %.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref.loc4_15: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc4_15.2: type = facet_access_type %Self.ref.loc4_15 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc4_15.2: type = converted %Self.ref.loc4_15, %Self.as_type.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %Self.ref.loc4_33: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:     %Self.as_type.loc4_33: type = facet_access_type %Self.ref.loc4_33 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:     %.loc4_33: type = converted %Self.ref.loc4_33, %Self.as_type.loc4_33 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:     %self.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc4_15.1: type = splice_block %.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref.loc4_15: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc4_15.2: type = facet_access_type %Self.ref.loc4_15 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc4_15.2: type = converted %Self.ref.loc4_15, %Self.as_type.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70) = bind_name self, %self.param
-// CHECK:STDOUT:     %b.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70) = value_param call_param1
-// CHECK:STDOUT:     %.loc4_24.1: type = splice_block %.loc4_24.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref.loc4_24: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc4_24: type = facet_access_type %Self.ref.loc4_24 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc4_24.2: type = converted %Self.ref.loc4_24, %Self.as_type.loc4_24 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %self: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af) = bind_name self, %self.param
+// CHECK:STDOUT:     %b.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af) = value_param call_param1
+// CHECK:STDOUT:     %.loc4_24.1: type = splice_block %.loc4_24.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref.loc4_24: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc4_24: type = facet_access_type %Self.ref.loc4_24 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc4_24.2: type = converted %Self.ref.loc4_24, %Self.as_type.loc4_24 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %b: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70) = bind_name b, %b.param
-// CHECK:STDOUT:     %return.param: ref @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70) = return_slot %return.param
+// CHECK:STDOUT:     %b: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af) = bind_name b, %b.param
+// CHECK:STDOUT:     %return.param: ref @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.Op.decl [concrete = constants.%assoc0.ea8]
 // CHECK:STDOUT:
@@ -1773,30 +1773,30 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %U: %I.type = assoc_const_decl @U [concrete] {
-// CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.5be]
+// CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.a22]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
-// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.74afd4.1) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.74afd4.1) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.74afd4.1) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.74afd4.1) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.ebc412.1) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.ebc412.1) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.ebc412.1) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.ebc412.1) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc9_17: %I.type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.5205fd.1)]
-// CHECK:STDOUT:     %U.ref.loc9_17: %I.type = name_ref U, %impl.elem0.loc9_17 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.5205fd.1)]
-// CHECK:STDOUT:     %U.as_type.loc9_17: type = facet_access_type %U.ref.loc9_17 [symbolic = %as_type (constants.%as_type.f5d8f3.1)]
-// CHECK:STDOUT:     %.loc9_17: type = converted %U.ref.loc9_17, %U.as_type.loc9_17 [symbolic = %as_type (constants.%as_type.f5d8f3.1)]
-// CHECK:STDOUT:     %u.param: @J.F.%as_type (%as_type.f5d8f3.1) = value_param call_param0
-// CHECK:STDOUT:     %.loc9_11.1: type = splice_block %.loc9_11.2 [symbolic = %as_type (constants.%as_type.f5d8f3.1)] {
-// CHECK:STDOUT:       %impl.elem0.loc9_11.2: %I.type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.5205fd.1)]
-// CHECK:STDOUT:       %U.ref.loc9_11: %I.type = name_ref U, %impl.elem0.loc9_11.2 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.5205fd.1)]
-// CHECK:STDOUT:       %U.as_type.loc9_11: type = facet_access_type %U.ref.loc9_11 [symbolic = %as_type (constants.%as_type.f5d8f3.1)]
-// CHECK:STDOUT:       %.loc9_11.2: type = converted %U.ref.loc9_11, %U.as_type.loc9_11 [symbolic = %as_type (constants.%as_type.f5d8f3.1)]
+// CHECK:STDOUT:     %impl.elem0.loc9_17: %I.type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.40d6b2.1)]
+// CHECK:STDOUT:     %U.ref.loc9_17: %I.type = name_ref U, %impl.elem0.loc9_17 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.40d6b2.1)]
+// CHECK:STDOUT:     %U.as_type.loc9_17: type = facet_access_type %U.ref.loc9_17 [symbolic = %as_type (constants.%as_type.f6fdf9.1)]
+// CHECK:STDOUT:     %.loc9_17: type = converted %U.ref.loc9_17, %U.as_type.loc9_17 [symbolic = %as_type (constants.%as_type.f6fdf9.1)]
+// CHECK:STDOUT:     %u.param: @J.F.%as_type (%as_type.f6fdf9.1) = value_param call_param0
+// CHECK:STDOUT:     %.loc9_11.1: type = splice_block %.loc9_11.2 [symbolic = %as_type (constants.%as_type.f6fdf9.1)] {
+// CHECK:STDOUT:       %impl.elem0.loc9_11.2: %I.type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.40d6b2.1)]
+// CHECK:STDOUT:       %U.ref.loc9_11: %I.type = name_ref U, %impl.elem0.loc9_11.2 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.40d6b2.1)]
+// CHECK:STDOUT:       %U.as_type.loc9_11: type = facet_access_type %U.ref.loc9_11 [symbolic = %as_type (constants.%as_type.f6fdf9.1)]
+// CHECK:STDOUT:       %.loc9_11.2: type = converted %U.ref.loc9_11, %U.as_type.loc9_11 [symbolic = %as_type (constants.%as_type.f6fdf9.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @J.F.%as_type (%as_type.f5d8f3.1) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @J.F.%as_type (%as_type.f5d8f3.1) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @J.F.%as_type (%as_type.f5d8f3.1) = return_slot %return.param
+// CHECK:STDOUT:     %u: @J.F.%as_type (%as_type.f6fdf9.1) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @J.F.%as_type (%as_type.f6fdf9.1) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @J.F.%as_type (%as_type.f6fdf9.1) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.F.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -1813,128 +1813,128 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.Op(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc4_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc4_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70), %b.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70)) -> @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.b70);
+// CHECK:STDOUT:   fn(%self.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af), %b.param: @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af)) -> @I.Op.%Self.as_type.loc4_15.1 (%Self.as_type.4af);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.F(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.1)]
-// CHECK:STDOUT:   %impl.elem0.loc9_11.1: %I.type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.5205fd.1)]
-// CHECK:STDOUT:   %as_type: type = facet_access_type %impl.elem0.loc9_11.1 [symbolic = %as_type (constants.%as_type.f5d8f3.1)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %as_type [symbolic = %pattern_type (constants.%pattern_type.74afd4.1)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.1)]
+// CHECK:STDOUT:   %impl.elem0.loc9_11.1: %I.type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_11.1 (constants.%impl.elem0.40d6b2.1)]
+// CHECK:STDOUT:   %as_type: type = facet_access_type %impl.elem0.loc9_11.1 [symbolic = %as_type (constants.%as_type.f6fdf9.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %as_type [symbolic = %pattern_type (constants.%pattern_type.ebc412.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @J.F.%as_type (%as_type.f5d8f3.1)) -> @J.F.%as_type (%as_type.f5d8f3.1);
+// CHECK:STDOUT:   fn(%u.param: @J.F.%as_type (%as_type.f6fdf9.1)) -> @J.F.%as_type (%as_type.f6fdf9.1);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @GenericResult(%T.loc12_18.2: %J.type) {
 // CHECK:STDOUT:   %T.loc12_18.1: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc12_18.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc12_28.1: type = facet_access_type %T.loc12_18.1 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc12_25: type = pattern_type %T.as_type.loc12_28.1 [symbolic = %pattern_type.loc12_25 (constants.%pattern_type.4ca)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc12_18.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.2)]
-// CHECK:STDOUT:   %impl.elem0.loc12_35.1: %I.type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:   %as_type.loc12_35.1: type = facet_access_type %impl.elem0.loc12_35.1 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f5d8f3.2)]
-// CHECK:STDOUT:   %pattern_type.loc12_31: type = pattern_type %as_type.loc12_35.1 [symbolic = %pattern_type.loc12_31 (constants.%pattern_type.74afd4.2)]
+// CHECK:STDOUT:   %pattern_type.loc12_25: type = pattern_type %T.as_type.loc12_28.1 [symbolic = %pattern_type.loc12_25 (constants.%pattern_type.059)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc12_18.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.2)]
+// CHECK:STDOUT:   %impl.elem0.loc12_35.1: %I.type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:   %as_type.loc12_35.1: type = facet_access_type %impl.elem0.loc12_35.1 [symbolic = %as_type.loc12_35.1 (constants.%as_type.f6fdf9.2)]
+// CHECK:STDOUT:   %pattern_type.loc12_31: type = pattern_type %as_type.loc12_35.1 [symbolic = %pattern_type.loc12_31 (constants.%pattern_type.ebc412.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc12_39: <witness> = require_complete_type %as_type.loc12_35.1 [symbolic = %require_complete.loc12_39 (constants.%require_complete.b33)]
-// CHECK:STDOUT:   %require_complete.loc12_26: <witness> = require_complete_type %T.as_type.loc12_28.1 [symbolic = %require_complete.loc12_26 (constants.%require_complete.2a5)]
-// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc12_28.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.5210a7.2)]
-// CHECK:STDOUT:   %.loc13_11.2: type = fn_type_with_self_type constants.%J.F.type, %J.facet [symbolic = %.loc13_11.2 (constants.%.d43)]
-// CHECK:STDOUT:   %impl.elem1.loc13_11.2: @GenericResult.%.loc13_11.2 (%.d43) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc13_11.2 (constants.%impl.elem1)]
-// CHECK:STDOUT:   %specific_impl_fn.loc13_11.2: <specific function> = specific_impl_function %impl.elem1.loc13_11.2, @J.F(%J.facet) [symbolic = %specific_impl_fn.loc13_11.2 (constants.%specific_impl_fn.fe8)]
+// CHECK:STDOUT:   %require_complete.loc12_39: <witness> = require_complete_type %as_type.loc12_35.1 [symbolic = %require_complete.loc12_39 (constants.%require_complete.6ea)]
+// CHECK:STDOUT:   %require_complete.loc12_26: <witness> = require_complete_type %T.as_type.loc12_28.1 [symbolic = %require_complete.loc12_26 (constants.%require_complete.36f)]
+// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc12_28.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.276c17.2)]
+// CHECK:STDOUT:   %.loc13_11.2: type = fn_type_with_self_type constants.%J.F.type, %J.facet [symbolic = %.loc13_11.2 (constants.%.5e5)]
+// CHECK:STDOUT:   %impl.elem1.loc13_11.2: @GenericResult.%.loc13_11.2 (%.5e5) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc13_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:   %specific_impl_fn.loc13_11.2: <specific function> = specific_impl_function %impl.elem1.loc13_11.2, @J.F(%J.facet) [symbolic = %specific_impl_fn.loc13_11.2 (constants.%specific_impl_fn.36a)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %impl.elem0.loc12_35.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %as_type.loc12_35.1, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc13_16: type = fn_type_with_self_type constants.%I.Op.type, %I.facet [symbolic = %.loc13_16 (constants.%.c9a)]
-// CHECK:STDOUT:   %impl.elem0.loc13_16.2: @GenericResult.%.loc13_16 (%.c9a) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_16.2 (constants.%impl.elem0.45a)]
-// CHECK:STDOUT:   %specific_impl_fn.loc13_16.2: <specific function> = specific_impl_function %impl.elem0.loc13_16.2, @I.Op(%I.facet) [symbolic = %specific_impl_fn.loc13_16.2 (constants.%specific_impl_fn.2ec)]
+// CHECK:STDOUT:   %.loc13_16: type = fn_type_with_self_type constants.%I.Op.type, %I.facet [symbolic = %.loc13_16 (constants.%.703)]
+// CHECK:STDOUT:   %impl.elem0.loc13_16.2: @GenericResult.%.loc13_16 (%.703) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_16.2 (constants.%impl.elem0.8cb)]
+// CHECK:STDOUT:   %specific_impl_fn.loc13_16.2: <specific function> = specific_impl_function %impl.elem0.loc13_16.2, @I.Op(%I.facet) [symbolic = %specific_impl_fn.loc13_16.2 (constants.%specific_impl_fn.d32)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%t.param: @GenericResult.%T.as_type.loc12_28.1 (%T.as_type), %u.param: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2)) -> @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) {
+// CHECK:STDOUT:   fn(%t.param: @GenericResult.%T.as_type.loc12_28.1 (%T.as_type), %u.param: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2)) -> @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref: @GenericResult.%T.as_type.loc12_28.1 (%T.as_type) = name_ref t, %t
 // CHECK:STDOUT:     %F.ref.loc13_11: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:     %T.as_type.loc13_11: type = facet_access_type constants.%T [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc13_11.1: type = converted constants.%T, %T.as_type.loc13_11 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem1.loc13_11.1: @GenericResult.%.loc13_11.2 (%.d43) = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element1 [symbolic = %impl.elem1.loc13_11.2 (constants.%impl.elem1)]
-// CHECK:STDOUT:     %u.ref.loc13_14: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = name_ref u, %u
-// CHECK:STDOUT:     %.loc13_15.1: %I.type = converted constants.%as_type.f5d8f3.2, constants.%impl.elem0.5205fd.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %.loc13_15.2: %I.type = converted constants.%as_type.f5d8f3.2, constants.%impl.elem0.5205fd.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc13_11.1: <specific function> = specific_impl_function %impl.elem1.loc13_11.1, @J.F(constants.%J.facet.5210a7.2) [symbolic = %specific_impl_fn.loc13_11.2 (constants.%specific_impl_fn.fe8)]
-// CHECK:STDOUT:     %.loc13_15.3: init @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = call %specific_impl_fn.loc13_11.1(%u.ref.loc13_14)
+// CHECK:STDOUT:     %impl.elem1.loc13_11.1: @GenericResult.%.loc13_11.2 (%.5e5) = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element1 [symbolic = %impl.elem1.loc13_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:     %u.ref.loc13_14: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = name_ref u, %u
+// CHECK:STDOUT:     %.loc13_15.1: %I.type = converted constants.%as_type.f6fdf9.2, constants.%impl.elem0.40d6b2.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %.loc13_15.2: %I.type = converted constants.%as_type.f6fdf9.2, constants.%impl.elem0.40d6b2.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc13_11.1: <specific function> = specific_impl_function %impl.elem1.loc13_11.1, @J.F(constants.%J.facet.276c17.2) [symbolic = %specific_impl_fn.loc13_11.2 (constants.%specific_impl_fn.36a)]
+// CHECK:STDOUT:     %.loc13_15.3: init @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = call %specific_impl_fn.loc13_11.1(%u.ref.loc13_14)
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     %Op.ref: %I.assoc_type = name_ref Op, @I.%assoc0 [concrete = constants.%assoc0.ea8]
-// CHECK:STDOUT:     %impl.elem0.loc13_16.1: @GenericResult.%.loc13_16 (%.c9a) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_16.2 (constants.%impl.elem0.45a)]
+// CHECK:STDOUT:     %impl.elem0.loc13_16.1: @GenericResult.%.loc13_16 (%.703) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_16.2 (constants.%impl.elem0.8cb)]
 // CHECK:STDOUT:     %bound_method.loc13_16: <bound method> = bound_method %.loc13_15.3, %impl.elem0.loc13_16.1
 // CHECK:STDOUT:     %T.ref.loc13: %J.type = name_ref T, %T.loc12_18.2 [symbolic = %T.loc12_18.1 (constants.%T)]
 // CHECK:STDOUT:     %F.ref.loc13_25: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:     %T.as_type.loc13_25: type = facet_access_type %T.ref.loc13 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc13_25: type = converted %T.ref.loc13, %T.as_type.loc13_25 [symbolic = %T.as_type.loc12_28.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem1.loc13_25: @GenericResult.%.loc13_11.2 (%.d43) = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element1 [symbolic = %impl.elem1.loc13_11.2 (constants.%impl.elem1)]
-// CHECK:STDOUT:     %u.ref.loc13_28: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = name_ref u, %u
-// CHECK:STDOUT:     %.loc13_29.1: %I.type = converted constants.%as_type.f5d8f3.2, constants.%impl.elem0.5205fd.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %.loc13_29.2: %I.type = converted constants.%as_type.f5d8f3.2, constants.%impl.elem0.5205fd.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc13_25: <specific function> = specific_impl_function %impl.elem1.loc13_25, @J.F(constants.%J.facet.5210a7.2) [symbolic = %specific_impl_fn.loc13_11.2 (constants.%specific_impl_fn.fe8)]
-// CHECK:STDOUT:     %.loc13_29.3: init @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = call %specific_impl_fn.loc13_25(%u.ref.loc13_28)
-// CHECK:STDOUT:     %.loc13_30.1: %I.type = converted constants.%as_type.f5d8f3.2, constants.%impl.elem0.5205fd.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %.loc13_30.2: %I.type = converted constants.%as_type.f5d8f3.2, constants.%impl.elem0.5205fd.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.5205fd.2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc13_16.1: <specific function> = specific_impl_function %impl.elem0.loc13_16.1, @I.Op(constants.%I.facet) [symbolic = %specific_impl_fn.loc13_16.2 (constants.%specific_impl_fn.2ec)]
+// CHECK:STDOUT:     %impl.elem1.loc13_25: @GenericResult.%.loc13_11.2 (%.5e5) = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element1 [symbolic = %impl.elem1.loc13_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:     %u.ref.loc13_28: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = name_ref u, %u
+// CHECK:STDOUT:     %.loc13_29.1: %I.type = converted constants.%as_type.f6fdf9.2, constants.%impl.elem0.40d6b2.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %.loc13_29.2: %I.type = converted constants.%as_type.f6fdf9.2, constants.%impl.elem0.40d6b2.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc13_25: <specific function> = specific_impl_function %impl.elem1.loc13_25, @J.F(constants.%J.facet.276c17.2) [symbolic = %specific_impl_fn.loc13_11.2 (constants.%specific_impl_fn.36a)]
+// CHECK:STDOUT:     %.loc13_29.3: init @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = call %specific_impl_fn.loc13_25(%u.ref.loc13_28)
+// CHECK:STDOUT:     %.loc13_30.1: %I.type = converted constants.%as_type.f6fdf9.2, constants.%impl.elem0.40d6b2.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %.loc13_30.2: %I.type = converted constants.%as_type.f6fdf9.2, constants.%impl.elem0.40d6b2.2 [symbolic = %impl.elem0.loc12_35.1 (constants.%impl.elem0.40d6b2.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc13_16.1: <specific function> = specific_impl_function %impl.elem0.loc13_16.1, @I.Op(constants.%I.facet) [symbolic = %specific_impl_fn.loc13_16.2 (constants.%specific_impl_fn.d32)]
 // CHECK:STDOUT:     %bound_method.loc13_30: <bound method> = bound_method %.loc13_15.3, %specific_impl_fn.loc13_16.1
-// CHECK:STDOUT:     %.loc13_15.4: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = value_of_initializer %.loc13_15.3
-// CHECK:STDOUT:     %.loc13_15.5: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = converted %.loc13_15.3, %.loc13_15.4
-// CHECK:STDOUT:     %.loc13_29.4: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = value_of_initializer %.loc13_29.3
-// CHECK:STDOUT:     %.loc13_29.5: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = converted %.loc13_29.3, %.loc13_29.4
-// CHECK:STDOUT:     %.loc13_30.3: init @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = call %bound_method.loc13_30(%.loc13_15.5, %.loc13_29.5)
-// CHECK:STDOUT:     %.loc13_31.1: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = value_of_initializer %.loc13_30.3
-// CHECK:STDOUT:     %.loc13_31.2: @GenericResult.%as_type.loc12_35.1 (%as_type.f5d8f3.2) = converted %.loc13_30.3, %.loc13_31.1
+// CHECK:STDOUT:     %.loc13_15.4: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = value_of_initializer %.loc13_15.3
+// CHECK:STDOUT:     %.loc13_15.5: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = converted %.loc13_15.3, %.loc13_15.4
+// CHECK:STDOUT:     %.loc13_29.4: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = value_of_initializer %.loc13_29.3
+// CHECK:STDOUT:     %.loc13_29.5: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = converted %.loc13_29.3, %.loc13_29.4
+// CHECK:STDOUT:     %.loc13_30.3: init @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = call %bound_method.loc13_30(%.loc13_15.5, %.loc13_29.5)
+// CHECK:STDOUT:     %.loc13_31.1: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = value_of_initializer %.loc13_30.3
+// CHECK:STDOUT:     %.loc13_31.2: @GenericResult.%as_type.loc12_35.1 (%as_type.f6fdf9.2) = converted %.loc13_30.3, %.loc13_31.1
 // CHECK:STDOUT:     return %.loc13_31.2
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.Op(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT: specific @I.Op(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @U(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.1) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.1) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.1
-// CHECK:STDOUT:   %impl.elem0.loc9_11.1 => constants.%impl.elem0.5205fd.1
-// CHECK:STDOUT:   %as_type => constants.%as_type.f5d8f3.1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.74afd4.1
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.1
+// CHECK:STDOUT:   %impl.elem0.loc9_11.1 => constants.%impl.elem0.40d6b2.1
+// CHECK:STDOUT:   %as_type => constants.%as_type.f6fdf9.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ebc412.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.2) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.2) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericResult(constants.%T) {
 // CHECK:STDOUT:   %T.loc12_18.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc12_28.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc12_25 => constants.%pattern_type.4ca
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc12_35.1 => constants.%impl.elem0.5205fd.2
-// CHECK:STDOUT:   %as_type.loc12_35.1 => constants.%as_type.f5d8f3.2
-// CHECK:STDOUT:   %pattern_type.loc12_31 => constants.%pattern_type.74afd4.2
+// CHECK:STDOUT:   %pattern_type.loc12_25 => constants.%pattern_type.059
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc12_35.1 => constants.%impl.elem0.40d6b2.2
+// CHECK:STDOUT:   %as_type.loc12_35.1 => constants.%as_type.f6fdf9.2
+// CHECK:STDOUT:   %pattern_type.loc12_31 => constants.%pattern_type.ebc412.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.5210a7.2) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.5210a7.2
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc9_11.1 => constants.%impl.elem0.5205fd.2
-// CHECK:STDOUT:   %as_type => constants.%as_type.f5d8f3.2
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.74afd4.2
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.276c17.2) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.276c17.2
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc9_11.1 => constants.%impl.elem0.40d6b2.2
+// CHECK:STDOUT:   %as_type => constants.%as_type.f6fdf9.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ebc412.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.Op(constants.%I.facet) {
 // CHECK:STDOUT:   %Self => constants.%I.facet
-// CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%as_type.f5d8f3.2
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.74afd4.2
+// CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%as_type.f6fdf9.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ebc412.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- interface_qualified.carbon
@@ -1945,30 +1945,30 @@ fn F() {
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.4ca604.1: type = pattern_type %Self.as_type [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.1: <witness> = lookup_impl_witness %Self, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.1: %J.type = facet_value %Self.as_type, (%J.lookup_impl_witness.64628e.1) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11fef0.1: type = impl_witness_access %J.lookup_impl_witness.64628e.1, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b984e7.1: type = pattern_type %impl.elem0.11fef0.1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.059556.1: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.1: <witness> = lookup_impl_witness %Self, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.1: %J.type = facet_value %Self.as_type, (%J.lookup_impl_witness.0df834.1) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2921.1: type = impl_witness_access %J.lookup_impl_witness.0df834.1, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a83b.1: type = pattern_type %impl.elem0.3a2921.1 [symbolic]
 // CHECK:STDOUT:   %J.G.type: type = fn_type @J.G [concrete]
 // CHECK:STDOUT:   %J.G: %J.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, @J.%J.G.decl [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %J.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.28e: type = pattern_type %J.type [concrete]
+// CHECK:STDOUT:   %pattern_type.fdf: type = pattern_type %J.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.4ca604.2: type = pattern_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.2: <witness> = lookup_impl_witness %T, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.2: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.64628e.2) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11fef0.2: type = impl_witness_access %J.lookup_impl_witness.64628e.2, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b984e7.2: type = pattern_type %impl.elem0.11fef0.2 [symbolic]
+// CHECK:STDOUT:   %pattern_type.059556.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.2: <witness> = lookup_impl_witness %T, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.2: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.0df834.2) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2921.2: type = impl_witness_access %J.lookup_impl_witness.0df834.2, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a83b.2: type = pattern_type %impl.elem0.3a2921.2 [symbolic]
 // CHECK:STDOUT:   %GenericCallInterfaceQualified.type: type = fn_type @GenericCallInterfaceQualified [concrete]
 // CHECK:STDOUT:   %GenericCallInterfaceQualified: %GenericCallInterfaceQualified.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.58f: <witness> = require_complete_type %impl.elem0.11fef0.2 [symbolic]
-// CHECK:STDOUT:   %require_complete.2a5: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %.442: type = fn_type_with_self_type %J.G.type, %J.facet.5210a7.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem1: %.442 = impl_witness_access %J.lookup_impl_witness.64628e.2, element1 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem1, @J.G(%J.facet.5210a7.2) [symbolic]
+// CHECK:STDOUT:   %require_complete.eaa: <witness> = require_complete_type %impl.elem0.3a2921.2 [symbolic]
+// CHECK:STDOUT:   %require_complete.36f: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %.12e: type = fn_type_with_self_type %J.G.type, %J.facet.276c17.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem1: %.12e = impl_witness_access %J.lookup_impl_witness.0df834.2, element1 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem1, @J.G(%J.facet.276c17.2) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1987,19 +1987,19 @@ fn F() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
 // CHECK:STDOUT:   %GenericCallInterfaceQualified.decl: %GenericCallInterfaceQualified.type = fn_decl @GenericCallInterfaceQualified [concrete = constants.%GenericCallInterfaceQualified] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.28e = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @GenericCallInterfaceQualified.%pattern_type.loc8_41 (%pattern_type.4ca604.2) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @GenericCallInterfaceQualified.%pattern_type.loc8_41 (%pattern_type.4ca604.2) = value_param_pattern %t.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %u.patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b984e7.2) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b984e7.2) = value_param_pattern %u.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b984e7.2) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b984e7.2) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.fdf = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @GenericCallInterfaceQualified.%pattern_type.loc8_41 (%pattern_type.059556.2) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @GenericCallInterfaceQualified.%pattern_type.loc8_41 (%pattern_type.059556.2) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %u.patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b7a83b.2) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b7a83b.2) = value_param_pattern %u.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b7a83b.2) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @GenericCallInterfaceQualified.%pattern_type.loc8_47 (%pattern_type.b7a83b.2) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc8_58: %J.type = name_ref T, %T.loc8_34.2 [symbolic = %T.loc8_34.1 (constants.%T)]
 // CHECK:STDOUT:     %U.ref.loc8_59: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc8_59: type = facet_access_type %T.ref.loc8_58 [symbolic = %T.as_type.loc8_44.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc8_59: type = converted %T.ref.loc8_58, %T.as_type.loc8_59 [symbolic = %T.as_type.loc8_44.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc8_59: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.11fef0.2)]
+// CHECK:STDOUT:     %impl.elem0.loc8_59: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.3a2921.2)]
 // CHECK:STDOUT:     %.loc8_38: type = splice_block %J.ref.loc8 [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %J.ref.loc8: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
@@ -2012,17 +2012,17 @@ fn F() {
 // CHECK:STDOUT:       %.loc8_44.2: type = converted %T.ref.loc8_44, %T.as_type.loc8_44.2 [symbolic = %T.as_type.loc8_44.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %t: @GenericCallInterfaceQualified.%T.as_type.loc8_44.1 (%T.as_type) = bind_name t, %t.param
-// CHECK:STDOUT:     %u.param: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = value_param call_param1
-// CHECK:STDOUT:     %.loc8_51.1: type = splice_block %impl.elem0.loc8_51.2 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.11fef0.2)] {
+// CHECK:STDOUT:     %u.param: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = value_param call_param1
+// CHECK:STDOUT:     %.loc8_51.1: type = splice_block %impl.elem0.loc8_51.2 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.3a2921.2)] {
 // CHECK:STDOUT:       %T.ref.loc8_50: %J.type = name_ref T, %T.loc8_34.2 [symbolic = %T.loc8_34.1 (constants.%T)]
 // CHECK:STDOUT:       %U.ref.loc8_51: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %T.as_type.loc8_51: type = facet_access_type %T.ref.loc8_50 [symbolic = %T.as_type.loc8_44.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc8_51.2: type = converted %T.ref.loc8_50, %T.as_type.loc8_51 [symbolic = %T.as_type.loc8_44.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %impl.elem0.loc8_51.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.11fef0.2)]
+// CHECK:STDOUT:       %impl.elem0.loc8_51.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.3a2921.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = return_slot %return.param
+// CHECK:STDOUT:     %u: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -2032,15 +2032,15 @@ fn F() {
 // CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.G.decl: %J.G.type = fn_decl @J.G [concrete = constants.%J.G] {
-// CHECK:STDOUT:     %self.patt: @J.G.%pattern_type.loc5_8 (%pattern_type.4ca604.1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @J.G.%pattern_type.loc5_8 (%pattern_type.4ca604.1) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %v.patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b984e7.1) = binding_pattern v [concrete]
-// CHECK:STDOUT:     %v.param_patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b984e7.1) = value_param_pattern %v.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b984e7.1) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b984e7.1) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @J.G.%pattern_type.loc5_8 (%pattern_type.059556.1) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @J.G.%pattern_type.loc5_8 (%pattern_type.059556.1) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %v.patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b7a83b.1) = binding_pattern v [concrete]
+// CHECK:STDOUT:     %v.param_patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b7a83b.1) = value_param_pattern %v.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b7a83b.1) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.G.%pattern_type.loc5_20 (%pattern_type.b7a83b.1) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_29: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:     %U.ref.loc5_29: type = name_ref U, %impl.elem0.loc5_29 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11fef0.1)]
+// CHECK:STDOUT:     %impl.elem0.loc5_29: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:     %U.ref.loc5_29: type = name_ref U, %impl.elem0.loc5_29 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2921.1)]
 // CHECK:STDOUT:     %self.param: @J.G.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
 // CHECK:STDOUT:       %Self.ref: %J.type = name_ref Self, @J.%Self [symbolic = %Self (constants.%Self)]
@@ -2048,14 +2048,14 @@ fn F() {
 // CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %self: @J.G.%Self.as_type.loc5_14.1 (%Self.as_type) = bind_name self, %self.param
-// CHECK:STDOUT:     %v.param: @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.11fef0.1) = value_param call_param1
-// CHECK:STDOUT:     %.loc5_23: type = splice_block %U.ref.loc5_23 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11fef0.1)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_23.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:       %U.ref.loc5_23: type = name_ref U, %impl.elem0.loc5_23.2 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11fef0.1)]
+// CHECK:STDOUT:     %v.param: @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.3a2921.1) = value_param call_param1
+// CHECK:STDOUT:     %.loc5_23: type = splice_block %U.ref.loc5_23 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2921.1)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_23.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:       %U.ref.loc5_23: type = name_ref U, %impl.elem0.loc5_23.2 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2921.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %v: @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.11fef0.1) = bind_name v, %v.param
-// CHECK:STDOUT:     %return.param: ref @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.11fef0.1) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.11fef0.1) = return_slot %return.param
+// CHECK:STDOUT:     %v: @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.3a2921.1) = bind_name v, %v.param
+// CHECK:STDOUT:     %return.param: ref @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.3a2921.1) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.3a2921.1) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.G.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -2073,134 +2073,134 @@ fn F() {
 // CHECK:STDOUT: generic fn @J.G(@J.%Self: %J.type) {
 // CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.4ca604.1)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.1)]
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %impl.elem0.loc5_23.1 [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.b984e7.1)]
+// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.059556.1)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.1)]
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %impl.elem0.loc5_23.1 [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.b7a83b.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @J.G.%Self.as_type.loc5_14.1 (%Self.as_type), %v.param: @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.11fef0.1)) -> @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.11fef0.1);
+// CHECK:STDOUT:   fn(%self.param: @J.G.%Self.as_type.loc5_14.1 (%Self.as_type), %v.param: @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.3a2921.1)) -> @J.G.%impl.elem0.loc5_23.1 (%impl.elem0.3a2921.1);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @GenericCallInterfaceQualified(%T.loc8_34.2: %J.type) {
 // CHECK:STDOUT:   %T.loc8_34.1: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_34.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc8_44.1: type = facet_access_type %T.loc8_34.1 [symbolic = %T.as_type.loc8_44.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc8_41: type = pattern_type %T.as_type.loc8_44.1 [symbolic = %pattern_type.loc8_41 (constants.%pattern_type.4ca604.2)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_34.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.2)]
-// CHECK:STDOUT:   %impl.elem0.loc8_51.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.11fef0.2)]
-// CHECK:STDOUT:   %pattern_type.loc8_47: type = pattern_type %impl.elem0.loc8_51.1 [symbolic = %pattern_type.loc8_47 (constants.%pattern_type.b984e7.2)]
+// CHECK:STDOUT:   %pattern_type.loc8_41: type = pattern_type %T.as_type.loc8_44.1 [symbolic = %pattern_type.loc8_41 (constants.%pattern_type.059556.2)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_34.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.2)]
+// CHECK:STDOUT:   %impl.elem0.loc8_51.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc8_51.1 (constants.%impl.elem0.3a2921.2)]
+// CHECK:STDOUT:   %pattern_type.loc8_47: type = pattern_type %impl.elem0.loc8_51.1 [symbolic = %pattern_type.loc8_47 (constants.%pattern_type.b7a83b.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc8_55: <witness> = require_complete_type %impl.elem0.loc8_51.1 [symbolic = %require_complete.loc8_55 (constants.%require_complete.58f)]
-// CHECK:STDOUT:   %require_complete.loc8_42: <witness> = require_complete_type %T.as_type.loc8_44.1 [symbolic = %require_complete.loc8_42 (constants.%require_complete.2a5)]
-// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc8_44.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.5210a7.2)]
-// CHECK:STDOUT:   %.loc9_11: type = fn_type_with_self_type constants.%J.G.type, %J.facet [symbolic = %.loc9_11 (constants.%.442)]
-// CHECK:STDOUT:   %impl.elem1.loc9_11.2: @GenericCallInterfaceQualified.%.loc9_11 (%.442) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:   %require_complete.loc8_55: <witness> = require_complete_type %impl.elem0.loc8_51.1 [symbolic = %require_complete.loc8_55 (constants.%require_complete.eaa)]
+// CHECK:STDOUT:   %require_complete.loc8_42: <witness> = require_complete_type %T.as_type.loc8_44.1 [symbolic = %require_complete.loc8_42 (constants.%require_complete.36f)]
+// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc8_44.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.276c17.2)]
+// CHECK:STDOUT:   %.loc9_11: type = fn_type_with_self_type constants.%J.G.type, %J.facet [symbolic = %.loc9_11 (constants.%.12e)]
+// CHECK:STDOUT:   %impl.elem1.loc9_11.2: @GenericCallInterfaceQualified.%.loc9_11 (%.12e) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
 // CHECK:STDOUT:   %specific_impl_fn.loc9_11.2: <specific function> = specific_impl_function %impl.elem1.loc9_11.2, @J.G(%J.facet) [symbolic = %specific_impl_fn.loc9_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%t.param: @GenericCallInterfaceQualified.%T.as_type.loc8_44.1 (%T.as_type), %u.param: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2)) -> @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) {
+// CHECK:STDOUT:   fn(%t.param: @GenericCallInterfaceQualified.%T.as_type.loc8_44.1 (%T.as_type), %u.param: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2)) -> @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %t.ref: @GenericCallInterfaceQualified.%T.as_type.loc8_44.1 (%T.as_type) = name_ref t, %t
 // CHECK:STDOUT:     %J.ref.loc9: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:     %G.ref: %J.assoc_type = name_ref G, @J.%assoc1 [concrete = constants.%assoc1]
-// CHECK:STDOUT:     %impl.elem1.loc9_11.1: @GenericCallInterfaceQualified.%.loc9_11 (%.442) = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:     %impl.elem1.loc9_11.1: @GenericCallInterfaceQualified.%.loc9_11 (%.12e) = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
 // CHECK:STDOUT:     %bound_method.loc9_11: <bound method> = bound_method %t.ref, %impl.elem1.loc9_11.1
-// CHECK:STDOUT:     %u.ref: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = name_ref u, %u
-// CHECK:STDOUT:     %specific_impl_fn.loc9_11.1: <specific function> = specific_impl_function %impl.elem1.loc9_11.1, @J.G(constants.%J.facet.5210a7.2) [symbolic = %specific_impl_fn.loc9_11.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %u.ref: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = name_ref u, %u
+// CHECK:STDOUT:     %specific_impl_fn.loc9_11.1: <specific function> = specific_impl_function %impl.elem1.loc9_11.1, @J.G(constants.%J.facet.276c17.2) [symbolic = %specific_impl_fn.loc9_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc9_19: <bound method> = bound_method %t.ref, %specific_impl_fn.loc9_11.1
-// CHECK:STDOUT:     %.loc9_19: init @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = call %bound_method.loc9_19(%t.ref, %u.ref)
-// CHECK:STDOUT:     %.loc9_20.1: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = value_of_initializer %.loc9_19
-// CHECK:STDOUT:     %.loc9_20.2: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.11fef0.2) = converted %.loc9_19, %.loc9_20.1
+// CHECK:STDOUT:     %.loc9_19: init @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = call %bound_method.loc9_19(%t.ref, %u.ref)
+// CHECK:STDOUT:     %.loc9_20.1: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = value_of_initializer %.loc9_19
+// CHECK:STDOUT:     %.loc9_20.2: @GenericCallInterfaceQualified.%impl.elem0.loc8_51.1 (%impl.elem0.3a2921.2) = converted %.loc9_19, %.loc9_20.1
 // CHECK:STDOUT:     return %.loc9_20.2
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.1) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @J.G(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.4ca604.1
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.1
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.11fef0.1
-// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.b984e7.1
+// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.059556.1
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.1
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.3a2921.1
+// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.b7a83b.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.2) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.2) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericCallInterfaceQualified(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_34.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_44.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc8_41 => constants.%pattern_type.4ca604.2
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc8_51.1 => constants.%impl.elem0.11fef0.2
-// CHECK:STDOUT:   %pattern_type.loc8_47 => constants.%pattern_type.b984e7.2
+// CHECK:STDOUT:   %pattern_type.loc8_41 => constants.%pattern_type.059556.2
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc8_51.1 => constants.%impl.elem0.3a2921.2
+// CHECK:STDOUT:   %pattern_type.loc8_47 => constants.%pattern_type.b7a83b.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.G(constants.%J.facet.5210a7.2) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.5210a7.2
+// CHECK:STDOUT: specific @J.G(constants.%J.facet.276c17.2) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.276c17.2
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.4ca604.2
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.11fef0.2
-// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.b984e7.2
+// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.059556.2
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.3a2921.2
+// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.b7a83b.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- use_where.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0.411: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.646: <witness> = lookup_impl_witness %Self.ccd, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.521: %J.type = facet_value %Self.as_type.3df, (%J.lookup_impl_witness.646) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11f: type = impl_witness_access %J.lookup_impl_witness.646, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b98: type = pattern_type %impl.elem0.11f [symbolic]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df: <witness> = lookup_impl_witness %Self.212, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276: %J.type = facet_value %Self.as_type.e94, (%J.lookup_impl_witness.0df) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2: type = impl_witness_access %J.lookup_impl_witness.0df, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a: type = pattern_type %impl.elem0.3a2 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, @J.%J.F.decl [concrete]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.968: %J.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.968 [symbolic_self]
-// CHECK:STDOUT:   %J.lookup_impl_witness.25c: <witness> = lookup_impl_witness %.Self.968, @J [symbolic_self]
-// CHECK:STDOUT:   %J.facet.330: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.25c) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.83f: type = impl_witness_access %J.lookup_impl_witness.25c, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.991: %J.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.991 [symbolic_self]
+// CHECK:STDOUT:   %J.lookup_impl_witness.726: <witness> = lookup_impl_witness %.Self.991, @J [symbolic_self]
+// CHECK:STDOUT:   %J.facet.62c: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.726) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.e6f: type = impl_witness_access %J.lookup_impl_witness.726, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.83f = %i32> [concrete]
+// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.e6f = %i32> [concrete]
 // CHECK:STDOUT:   %T: %J_where.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.a22: type = pattern_type %J_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.15e: type = pattern_type %J_where.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.b32: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.86d: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %GenericCallFI32.type: type = fn_type @GenericCallFI32 [concrete]
 // CHECK:STDOUT:   %GenericCallFI32: %GenericCallFI32.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.5de: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.bee: <witness> = lookup_impl_witness %T, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.487: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.bee) [symbolic]
-// CHECK:STDOUT:   %.9b0: type = fn_type_with_self_type %J.F.type, %J.facet.487 [symbolic]
-// CHECK:STDOUT:   %impl.elem1: %.9b0 = impl_witness_access %J.lookup_impl_witness.bee, element1 [symbolic]
+// CHECK:STDOUT:   %require_complete.b0b: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.de1: <witness> = lookup_impl_witness %T, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.da1: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.de1) [symbolic]
+// CHECK:STDOUT:   %.3b4: type = fn_type_with_self_type %J.F.type, %J.facet.da1 [symbolic]
+// CHECK:STDOUT:   %impl.elem1: %.3b4 = impl_witness_access %J.lookup_impl_witness.de1, element1 [symbolic]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem1, @J.F(%J.facet.487) [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem1, @J.F(%J.facet.da1) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
@@ -2214,8 +2214,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -2227,9 +2227,9 @@ fn F() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
 // CHECK:STDOUT:   %GenericCallFI32.decl: %GenericCallFI32.type = fn_decl @GenericCallFI32 [concrete = constants.%GenericCallFI32] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.a22 = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %t.patt: @GenericCallFI32.%pattern_type (%pattern_type.b32) = binding_pattern t [concrete]
-// CHECK:STDOUT:     %t.param_patt: @GenericCallFI32.%pattern_type (%pattern_type.b32) = value_param_pattern %t.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.15e = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %t.patt: @GenericCallFI32.%pattern_type (%pattern_type.86d) = binding_pattern t [concrete]
+// CHECK:STDOUT:     %t.param_patt: @GenericCallFI32.%pattern_type (%pattern_type.86d) = value_param_pattern %t.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
@@ -2238,12 +2238,12 @@ fn F() {
 // CHECK:STDOUT:     %.loc8_26.1: type = splice_block %.loc8_26.2 [concrete = constants.%J_where.type] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:       %.Self.2: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.968]
-// CHECK:STDOUT:       %.Self.ref: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:       %.Self.2: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.991]
+// CHECK:STDOUT:       %.Self.ref: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:       %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc8_32: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:       %impl.elem0.loc8: type = impl_witness_access constants.%J.lookup_impl_witness.25c, element0 [symbolic_self = constants.%impl.elem0.83f]
+// CHECK:STDOUT:       %impl.elem0.loc8: type = impl_witness_access constants.%J.lookup_impl_witness.726, element0 [symbolic_self = constants.%impl.elem0.e6f]
 // CHECK:STDOUT:       %int_32.loc8_37: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32.loc8_37: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:       %.loc8_26.2: type = where_expr %.Self.2 [concrete = constants.%J_where.type] {
@@ -2265,26 +2265,26 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %U: type = assoc_const_decl @U [concrete] {
 // CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
-// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b98) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b98) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b98) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b98) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b7a) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b7a) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b7a) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b7a) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = value_param call_param0
-// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
+// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = value_param call_param0
+// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = return_slot %return.param
+// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.F.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -2300,25 +2300,25 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.F(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.646)]
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b98)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df)]
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b7a)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f);
+// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @GenericCallFI32(%T.loc8_20.2: %J_where.type) {
 // CHECK:STDOUT:   %T.loc8_20.1: %J_where.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_20.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc8_45.1: type = facet_access_type %T.loc8_20.1 [symbolic = %T.as_type.loc8_45.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc8_45.1 [symbolic = %pattern_type (constants.%pattern_type.b32)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc8_45.1 [symbolic = %pattern_type (constants.%pattern_type.86d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc8_45.1 [symbolic = %require_complete (constants.%require_complete.5de)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_20.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.bee)]
-// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc8_45.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.487)]
-// CHECK:STDOUT:   %.loc9_11.2: type = fn_type_with_self_type constants.%J.F.type, %J.facet [symbolic = %.loc9_11.2 (constants.%.9b0)]
-// CHECK:STDOUT:   %impl.elem1.loc9_11.2: @GenericCallFI32.%.loc9_11.2 (%.9b0) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc8_45.1 [symbolic = %require_complete (constants.%require_complete.b0b)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_20.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.de1)]
+// CHECK:STDOUT:   %J.facet: %J.type = facet_value %T.as_type.loc8_45.1, (%J.lookup_impl_witness) [symbolic = %J.facet (constants.%J.facet.da1)]
+// CHECK:STDOUT:   %.loc9_11.2: type = fn_type_with_self_type constants.%J.F.type, %J.facet [symbolic = %.loc9_11.2 (constants.%.3b4)]
+// CHECK:STDOUT:   %impl.elem1.loc9_11.2: @GenericCallFI32.%.loc9_11.2 (%.3b4) = impl_witness_access %J.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
 // CHECK:STDOUT:   %specific_impl_fn.loc9_11.2: <specific function> = specific_impl_function %impl.elem1.loc9_11.2, @J.F(%J.facet) [symbolic = %specific_impl_fn.loc9_11.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%t.param: @GenericCallFI32.%T.as_type.loc8_45.1 (%T.as_type)) -> %i32 {
@@ -2327,10 +2327,10 @@ fn F() {
 // CHECK:STDOUT:     %F.ref: %J.assoc_type = name_ref F, @J.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:     %T.as_type.loc9: type = facet_access_type constants.%T [symbolic = %T.as_type.loc8_45.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc9_11.1: type = converted constants.%T, %T.as_type.loc9 [symbolic = %T.as_type.loc8_45.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem1.loc9_11.1: @GenericCallFI32.%.loc9_11.2 (%.9b0) = impl_witness_access constants.%J.lookup_impl_witness.bee, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:     %impl.elem1.loc9_11.1: @GenericCallFI32.%.loc9_11.2 (%.3b4) = impl_witness_access constants.%J.lookup_impl_witness.de1, element1 [symbolic = %impl.elem1.loc9_11.2 (constants.%impl.elem1)]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %specific_impl_fn.loc9_11.1: <specific function> = specific_impl_function %impl.elem1.loc9_11.1, @J.F(constants.%J.facet.487) [symbolic = %specific_impl_fn.loc9_11.2 (constants.%specific_impl_fn)]
-// CHECK:STDOUT:     %impl.elem0.loc9: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %specific_impl_fn.loc9_11.1: <specific function> = specific_impl_function %impl.elem1.loc9_11.1, @J.F(constants.%J.facet.da1) [symbolic = %specific_impl_fn.loc9_11.2 (constants.%specific_impl_fn)]
+// CHECK:STDOUT:     %impl.elem0.loc9: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc9_14.1: <bound method> = bound_method %int_2, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0.loc9, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc9_14.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method]
@@ -2344,28 +2344,28 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @U(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.521) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.646
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.11f
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b98
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.3a2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.330) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.62c) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericCallFI32(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_20.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_45.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b32
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.86d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.487) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.487
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.bee
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.da1) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.da1
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.de1
 // CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%i32
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7ce
 // CHECK:STDOUT: }
@@ -2374,37 +2374,37 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0.411: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
-// CHECK:STDOUT:   %Self.as_type.3df: type = facet_access_type %Self.ccd [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.646: <witness> = lookup_impl_witness %Self.ccd, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.521: %J.type = facet_value %Self.as_type.3df, (%J.lookup_impl_witness.646) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11f: type = impl_witness_access %J.lookup_impl_witness.646, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b98: type = pattern_type %impl.elem0.11f [symbolic]
+// CHECK:STDOUT:   %Self.as_type.e94: type = facet_access_type %Self.212 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df: <witness> = lookup_impl_witness %Self.212, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276: %J.type = facet_value %Self.as_type.e94, (%J.lookup_impl_witness.0df) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2: type = impl_witness_access %J.lookup_impl_witness.0df, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a: type = pattern_type %impl.elem0.3a2 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, @J.%J.F.decl [concrete]
 // CHECK:STDOUT:   %E: type = class_type @E [concrete]
 // CHECK:STDOUT:   %.Self: %J.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
-// CHECK:STDOUT:   %J.lookup_impl_witness.25c: <witness> = lookup_impl_witness %.Self, @J [symbolic_self]
-// CHECK:STDOUT:   %J.facet.330: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.25c) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.83f: type = impl_witness_access %J.lookup_impl_witness.25c, element0 [symbolic_self]
+// CHECK:STDOUT:   %J.lookup_impl_witness.726: <witness> = lookup_impl_witness %.Self, @J [symbolic_self]
+// CHECK:STDOUT:   %J.facet.62c: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness.726) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.e6f: type = impl_witness_access %J.lookup_impl_witness.726, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.83f = %i32> [concrete]
+// CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0.e6f = %i32> [concrete]
 // CHECK:STDOUT:   %J.impl_witness: <witness> = impl_witness @E.%J.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %E.as.J.impl.F.type.b842fd.1: type = fn_type @E.as.J.impl.F.loc24_21.1 [concrete]
-// CHECK:STDOUT:   %E.as.J.impl.F.b07d12.1: %E.as.J.impl.F.type.b842fd.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J.facet.f43: %J.type = facet_value %E, (%J.impl_witness) [concrete]
+// CHECK:STDOUT:   %E.as.J.impl.F.type.d756b1.1: type = fn_type @E.as.J.impl.F.loc24_21.1 [concrete]
+// CHECK:STDOUT:   %E.as.J.impl.F.2cb115.1: %E.as.J.impl.F.type.d756b1.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J.facet.e36: %J.type = facet_value %E, (%J.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %E.as.J.impl.F.type.b842fd.2: type = fn_type @E.as.J.impl.F.loc24_21.2 [concrete]
-// CHECK:STDOUT:   %E.as.J.impl.F.b07d12.2: %E.as.J.impl.F.type.b842fd.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %E.as.J.impl.F.type.d756b1.2: type = fn_type @E.as.J.impl.F.loc24_21.2 [concrete]
+// CHECK:STDOUT:   %E.as.J.impl.F.2cb115.2: %E.as.J.impl.F.type.d756b1.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @E.%Destroy.impl_witness_table [concrete]
@@ -2441,26 +2441,26 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %U: type = assoc_const_decl @U [concrete] {
 // CHECK:STDOUT:     %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J.F.decl: %J.F.type = fn_decl @J.F [concrete = constants.%J.F] {
-// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b98) = binding_pattern u [concrete]
-// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b98) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b98) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b98) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %u.patt: @J.F.%pattern_type (%pattern_type.b7a) = binding_pattern u [concrete]
+// CHECK:STDOUT:     %u.param_patt: @J.F.%pattern_type (%pattern_type.b7a) = value_param_pattern %u.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @J.F.%pattern_type (%pattern_type.b7a) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J.F.%pattern_type (%pattern_type.b7a) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = value_param call_param0
-// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.646, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
+// CHECK:STDOUT:     %impl.elem0.loc5_17: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %U.ref.loc5_17: type = name_ref U, %impl.elem0.loc5_17 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:     %u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = value_param call_param0
+// CHECK:STDOUT:     %.loc5: type = splice_block %U.ref.loc5_11 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_11.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:       %U.ref.loc5_11: type = name_ref U, %impl.elem0.loc5_11.2 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = bind_name u, %u.param
-// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f) = return_slot %return.param
+// CHECK:STDOUT:     %u: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = bind_name u, %u.param
+// CHECK:STDOUT:     %return.param: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, %J.F.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -2476,7 +2476,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @E.as.J.impl: %Self.ref as %.loc9_20 {
-// CHECK:STDOUT:   %E.as.J.impl.F.decl.loc24_21.1: %E.as.J.impl.F.type.b842fd.1 = fn_decl @E.as.J.impl.F.loc24_21.1 [concrete = constants.%E.as.J.impl.F.b07d12.1] {
+// CHECK:STDOUT:   %E.as.J.impl.F.decl.loc24_21.1: %E.as.J.impl.F.type.d756b1.1 = fn_decl @E.as.J.impl.F.loc24_21.1 [concrete = constants.%E.as.J.impl.F.2cb115.1] {
 // CHECK:STDOUT:     %u.patt: <error> = binding_pattern u [concrete]
 // CHECK:STDOUT:     %u.param_patt: <error> = value_param_pattern %u.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: <error> = return_slot_pattern [concrete]
@@ -2493,7 +2493,7 @@ fn F() {
 // CHECK:STDOUT:     %return.param: ref <error> = out_param call_param1
 // CHECK:STDOUT:     %return: ref <error> = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %E.as.J.impl.F.decl.loc24_21.2: %E.as.J.impl.F.type.b842fd.2 = fn_decl @E.as.J.impl.F.loc24_21.2 [concrete = constants.%E.as.J.impl.F.b07d12.2] {
+// CHECK:STDOUT:   %E.as.J.impl.F.decl.loc24_21.2: %E.as.J.impl.F.type.d756b1.2 = fn_decl @E.as.J.impl.F.loc24_21.2 [concrete = constants.%E.as.J.impl.F.2cb115.2] {
 // CHECK:STDOUT:     %u.patt: %pattern_type.7ce = binding_pattern u [concrete]
 // CHECK:STDOUT:     %u.param_patt: %pattern_type.7ce = value_param_pattern %u.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
@@ -2536,7 +2536,7 @@ fn F() {
 // CHECK:STDOUT:     %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0.411]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc9_26: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.25c, element0 [symbolic_self = constants.%impl.elem0.83f]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness.726, element0 [symbolic_self = constants.%impl.elem0.e6f]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %.loc9_20: type = where_expr %.Self [concrete = constants.%J_where.type] {
@@ -2562,12 +2562,12 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J.F(@J.%Self: %J.type) {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ccd)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.646)]
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.11f)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b98)]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.212)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df)]
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_11.1 (constants.%impl.elem0.3a2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc5_11.1 [symbolic = %pattern_type (constants.%pattern_type.b7a)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.11f);
+// CHECK:STDOUT:   fn(%u.param: @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2)) -> @J.F.%impl.elem0.loc5_11.1 (%impl.elem0.3a2);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @E.as.J.impl.F.loc24_21.1(%u.param: <error>) -> <error> {
@@ -2578,7 +2578,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @E.as.J.impl.F.loc24_21.2(%u.param: %i32) -> %i32 [thunk @E.as.J.impl.%E.as.J.impl.F.decl.loc24_21.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %E.as.J.impl.F.type.b842fd.1 = name_ref F, @E.as.J.impl.%E.as.J.impl.F.decl.loc24_21.1 [concrete = constants.%E.as.J.impl.F.b07d12.1]
+// CHECK:STDOUT:   %F.ref: %E.as.J.impl.F.type.d756b1.1 = name_ref F, @E.as.J.impl.%E.as.J.impl.F.decl.loc24_21.1 [concrete = constants.%E.as.J.impl.F.2cb115.1]
 // CHECK:STDOUT:   %u.ref: %i32 = name_ref u, %u.param
 // CHECK:STDOUT:   %return.ref: ref %i32 = name_ref <return slot>, %return.param
 // CHECK:STDOUT:   %E.as.J.impl.F.call: init <error> = call %F.ref(<error>)
@@ -2587,21 +2587,21 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @E.as.Destroy.impl.Op(%self.param: %ptr.742) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @U(constants.%Self.212) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.521) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {
-// CHECK:STDOUT:   %Self => constants.%Self.ccd
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.646
-// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.11f
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b98
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {
+// CHECK:STDOUT:   %Self => constants.%Self.212
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df
+// CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%impl.elem0.3a2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.330) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.62c) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%J.facet.f43) {
-// CHECK:STDOUT:   %Self => constants.%J.facet.f43
+// CHECK:STDOUT: specific @J.F(constants.%J.facet.e36) {
+// CHECK:STDOUT:   %Self => constants.%J.facet.e36
 // CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.impl_witness
 // CHECK:STDOUT:   %impl.elem0.loc5_11.1 => constants.%i32
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7ce
@@ -2611,11 +2611,11 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %J2.type: type = facet_type <@J2> [concrete]
-// CHECK:STDOUT:   %Self.541: %J2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.1dc: %J2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J2.assoc_type: type = assoc_entity_type @J2 [concrete]
 // CHECK:STDOUT:   %assoc0: %J2.assoc_type = assoc_entity element0, @J2.%U2 [concrete]
-// CHECK:STDOUT:   %Self.as_type.f5c: type = facet_access_type %Self.541 [symbolic]
-// CHECK:STDOUT:   %pattern_type.969: type = pattern_type %Self.as_type.f5c [symbolic]
+// CHECK:STDOUT:   %Self.as_type.338: type = facet_access_type %Self.1dc [symbolic]
+// CHECK:STDOUT:   %pattern_type.12f: type = pattern_type %Self.as_type.338 [symbolic]
 // CHECK:STDOUT:   %J2.F.type: type = fn_type @J2.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %J2.F: %J2.F.type = struct_value () [concrete]
@@ -2623,18 +2623,18 @@ fn F() {
 // CHECK:STDOUT:   %.Self: %J2.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
 // CHECK:STDOUT:   %J2.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @J2 [symbolic_self]
-// CHECK:STDOUT:   %J2.facet.e30: %J2.type = facet_value %.Self.as_type, (%J2.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %J2.facet.c01: %J2.type = facet_value %.Self.as_type, (%J2.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %J2.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
-// CHECK:STDOUT:   %J2_where.type.9e1: type = facet_type <@J2 where %impl.elem0 = %empty_struct_type> [concrete]
-// CHECK:STDOUT:   %J2.impl_witness.6a9: <witness> = impl_witness file.%J2.impl_witness_table.loc22 [concrete]
+// CHECK:STDOUT:   %J2_where.type.76b: type = facet_type <@J2 where %impl.elem0 = %empty_struct_type> [concrete]
+// CHECK:STDOUT:   %J2.impl_witness.d7c: <witness> = impl_witness file.%J2.impl_witness_table.loc22 [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.type.f405c5.1: type = fn_type @empty_tuple.type.as.J2.impl.F.loc30_33.1 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.214a71.1: %empty_tuple.type.as.J2.impl.F.type.f405c5.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J2.facet.86f: %J2.type = facet_value %empty_tuple.type, (%J2.impl_witness.6a9) [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.type.f405c5.2: type = fn_type @empty_tuple.type.as.J2.impl.F.loc30_33.2 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.214a71.2: %empty_tuple.type.as.J2.impl.F.type.f405c5.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.type.d5ba25.1: type = fn_type @empty_tuple.type.as.J2.impl.F.loc30_33.1 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.a185df.1: %empty_tuple.type.as.J2.impl.F.type.d5ba25.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J2.facet.2bd: %J2.type = facet_value %empty_tuple.type, (%J2.impl_witness.d7c) [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.type.d5ba25.2: type = fn_type @empty_tuple.type.as.J2.impl.F.loc30_33.2 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.a185df.2: %empty_tuple.type.as.J2.impl.F.type.d5ba25.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %C2: type = class_type @C2 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
@@ -2644,14 +2644,14 @@ fn F() {
 // CHECK:STDOUT:   %C2.as.Destroy.impl.Op.type: type = fn_type @C2.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C2.as.Destroy.impl.Op: %C2.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %J2_where.type.df9: type = facet_type <@J2 where %impl.elem0 = %C2> [concrete]
-// CHECK:STDOUT:   %J2.impl_witness.267: <witness> = impl_witness file.%J2.impl_witness_table.loc38 [concrete]
+// CHECK:STDOUT:   %J2_where.type.c9c: type = facet_type <@J2 where %impl.elem0 = %C2> [concrete]
+// CHECK:STDOUT:   %J2.impl_witness.33e: <witness> = impl_witness file.%J2.impl_witness_table.loc38 [concrete]
 // CHECK:STDOUT:   %pattern_type.838: type = pattern_type %C2 [concrete]
-// CHECK:STDOUT:   %C2.as.J2.impl.F.type.05d6a0.1: type = fn_type @C2.as.J2.impl.F.loc39_33.1 [concrete]
-// CHECK:STDOUT:   %C2.as.J2.impl.F.bfa759.1: %C2.as.J2.impl.F.type.05d6a0.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %J2.facet.c3f: %J2.type = facet_value %C2, (%J2.impl_witness.267) [concrete]
-// CHECK:STDOUT:   %C2.as.J2.impl.F.type.05d6a0.2: type = fn_type @C2.as.J2.impl.F.loc39_33.2 [concrete]
-// CHECK:STDOUT:   %C2.as.J2.impl.F.bfa759.2: %C2.as.J2.impl.F.type.05d6a0.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %C2.as.J2.impl.F.type.88fb30.1: type = fn_type @C2.as.J2.impl.F.loc39_33.1 [concrete]
+// CHECK:STDOUT:   %C2.as.J2.impl.F.78bd1b.1: %C2.as.J2.impl.F.type.88fb30.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %J2.facet.41b: %J2.type = facet_value %C2, (%J2.impl_witness.33e) [concrete]
+// CHECK:STDOUT:   %C2.as.J2.impl.F.type.88fb30.2: type = fn_type @C2.as.J2.impl.F.loc39_33.2 [concrete]
+// CHECK:STDOUT:   %C2.as.J2.impl.F.78bd1b.2: %C2.as.J2.impl.F.type.88fb30.2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2683,13 +2683,13 @@ fn F() {
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J2.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %.loc22_28.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %.loc22_28.2: type = converted %.loc22_28.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
-// CHECK:STDOUT:     %.loc22_15: type = where_expr %.Self [concrete = constants.%J2_where.type.9e1] {
+// CHECK:STDOUT:     %.loc22_15: type = where_expr %.Self [concrete = constants.%J2_where.type.76b] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%J2.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc22_28.2
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J2.impl_witness_table.loc22 = impl_witness_table (%impl_witness_assoc_constant.loc22, @empty_tuple.type.as.J2.impl.%empty_tuple.type.as.J2.impl.F.decl.loc30_33.2), @empty_tuple.type.as.J2.impl [concrete]
-// CHECK:STDOUT:   %J2.impl_witness.loc22: <witness> = impl_witness %J2.impl_witness_table.loc22 [concrete = constants.%J2.impl_witness.6a9]
+// CHECK:STDOUT:   %J2.impl_witness.loc22: <witness> = impl_witness %J2.impl_witness_table.loc22 [concrete = constants.%J2.impl_witness.d7c]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc22: type = impl_witness_assoc_constant constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   %C2.decl: type = class_decl @C2 [concrete = constants.%C2] {} {}
 // CHECK:STDOUT:   impl_decl @C2.as.J2.impl [concrete] {} {
@@ -2702,39 +2702,39 @@ fn F() {
 // CHECK:STDOUT:     %.loc38_21: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%J2.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:     %C2.ref.loc38_27: type = name_ref C2, file.%C2.decl [concrete = constants.%C2]
-// CHECK:STDOUT:     %.loc38_15: type = where_expr %.Self [concrete = constants.%J2_where.type.df9] {
+// CHECK:STDOUT:     %.loc38_15: type = where_expr %.Self [concrete = constants.%J2_where.type.c9c] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%J2.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %C2.ref.loc38_27
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J2.impl_witness_table.loc38 = impl_witness_table (%impl_witness_assoc_constant.loc38, @C2.as.J2.impl.%C2.as.J2.impl.F.decl.loc39_33.2), @C2.as.J2.impl [concrete]
-// CHECK:STDOUT:   %J2.impl_witness.loc38: <witness> = impl_witness %J2.impl_witness_table.loc38 [concrete = constants.%J2.impl_witness.267]
+// CHECK:STDOUT:   %J2.impl_witness.loc38: <witness> = impl_witness %J2.impl_witness_table.loc38 [concrete = constants.%J2.impl_witness.33e]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc38: type = impl_witness_assoc_constant constants.%C2 [concrete = constants.%C2]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J2 {
-// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.541]
+// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1dc]
 // CHECK:STDOUT:   %U2: type = assoc_const_decl @U2 [concrete] {
 // CHECK:STDOUT:     %assoc0: %J2.assoc_type = assoc_entity element0, @J2.%U2 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %J2.F.decl: %J2.F.type = fn_decl @J2.F [concrete = constants.%J2.F] {
-// CHECK:STDOUT:     %self.patt: @J2.F.%pattern_type (%pattern_type.969) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @J2.F.%pattern_type (%pattern_type.969) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @J2.F.%pattern_type (%pattern_type.12f) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @J2.F.%pattern_type (%pattern_type.12f) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %z.patt: <error> = binding_pattern z [concrete]
 // CHECK:STDOUT:     %z.param_patt: <error> = value_param_pattern %z.patt, call_param1 [concrete]
 // CHECK:STDOUT:     %return.patt: <error> = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: <error> = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.ref.loc19_35: %J2.type = name_ref Self, @J2.%Self [symbolic = %Self (constants.%Self.541)]
-// CHECK:STDOUT:     %self.param: @J2.F.%Self.as_type.loc19_14.1 (%Self.as_type.f5c) = value_param call_param0
-// CHECK:STDOUT:     %.loc19_14.1: type = splice_block %.loc19_14.2 [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.f5c)] {
-// CHECK:STDOUT:       %Self.ref.loc19_14: %J2.type = name_ref Self, @J2.%Self [symbolic = %Self (constants.%Self.541)]
-// CHECK:STDOUT:       %Self.as_type.loc19_14.2: type = facet_access_type %Self.ref.loc19_14 [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.f5c)]
-// CHECK:STDOUT:       %.loc19_14.2: type = converted %Self.ref.loc19_14, %Self.as_type.loc19_14.2 [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.f5c)]
+// CHECK:STDOUT:     %Self.ref.loc19_35: %J2.type = name_ref Self, @J2.%Self [symbolic = %Self (constants.%Self.1dc)]
+// CHECK:STDOUT:     %self.param: @J2.F.%Self.as_type.loc19_14.1 (%Self.as_type.338) = value_param call_param0
+// CHECK:STDOUT:     %.loc19_14.1: type = splice_block %.loc19_14.2 [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.338)] {
+// CHECK:STDOUT:       %Self.ref.loc19_14: %J2.type = name_ref Self, @J2.%Self [symbolic = %Self (constants.%Self.1dc)]
+// CHECK:STDOUT:       %Self.as_type.loc19_14.2: type = facet_access_type %Self.ref.loc19_14 [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.338)]
+// CHECK:STDOUT:       %.loc19_14.2: type = converted %Self.ref.loc19_14, %Self.as_type.loc19_14.2 [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.338)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @J2.F.%Self.as_type.loc19_14.1 (%Self.as_type.f5c) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @J2.F.%Self.as_type.loc19_14.1 (%Self.as_type.338) = bind_name self, %self.param
 // CHECK:STDOUT:     %z.param: <error> = value_param call_param1
-// CHECK:STDOUT:     %Self.ref.loc19_23: %J2.type = name_ref Self, @J2.%Self [symbolic = %Self (constants.%Self.541)]
+// CHECK:STDOUT:     %Self.ref.loc19_23: %J2.type = name_ref Self, @J2.%Self [symbolic = %Self (constants.%Self.1dc)]
 // CHECK:STDOUT:     %z: <error> = bind_name z, %z.param
 // CHECK:STDOUT:     %return.param: ref <error> = out_param call_param2
 // CHECK:STDOUT:     %return: ref <error> = return_slot %return.param
@@ -2753,7 +2753,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.J2.impl: %.loc22_7.2 as %.loc22_15 {
-// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.decl.loc30_33.1: %empty_tuple.type.as.J2.impl.F.type.f405c5.1 = fn_decl @empty_tuple.type.as.J2.impl.F.loc30_33.1 [concrete = constants.%empty_tuple.type.as.J2.impl.F.214a71.1] {
+// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.decl.loc30_33.1: %empty_tuple.type.as.J2.impl.F.type.d5ba25.1 = fn_decl @empty_tuple.type.as.J2.impl.F.loc30_33.1 [concrete = constants.%empty_tuple.type.as.J2.impl.F.a185df.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.cb1 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.cb1 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %z.patt: %pattern_type.a96 = binding_pattern z [concrete]
@@ -2775,7 +2775,7 @@ fn F() {
 // CHECK:STDOUT:     %return.param: ref %empty_struct_type = out_param call_param2
 // CHECK:STDOUT:     %return: ref %empty_struct_type = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.decl.loc30_33.2: %empty_tuple.type.as.J2.impl.F.type.f405c5.2 = fn_decl @empty_tuple.type.as.J2.impl.F.loc30_33.2 [concrete = constants.%empty_tuple.type.as.J2.impl.F.214a71.2] {
+// CHECK:STDOUT:   %empty_tuple.type.as.J2.impl.F.decl.loc30_33.2: %empty_tuple.type.as.J2.impl.F.type.d5ba25.2 = fn_decl @empty_tuple.type.as.J2.impl.F.loc30_33.2 [concrete = constants.%empty_tuple.type.as.J2.impl.F.a185df.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.cb1 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.cb1 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %.param_patt: <error> = value_param_pattern <error>, call_param1 [concrete]
@@ -2811,7 +2811,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @C2.as.J2.impl: %C2.ref.loc38_6 as %.loc38_15 {
-// CHECK:STDOUT:   %C2.as.J2.impl.F.decl.loc39_33.1: %C2.as.J2.impl.F.type.05d6a0.1 = fn_decl @C2.as.J2.impl.F.loc39_33.1 [concrete = constants.%C2.as.J2.impl.F.bfa759.1] {
+// CHECK:STDOUT:   %C2.as.J2.impl.F.decl.loc39_33.1: %C2.as.J2.impl.F.type.88fb30.1 = fn_decl @C2.as.J2.impl.F.loc39_33.1 [concrete = constants.%C2.as.J2.impl.F.78bd1b.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.838 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.838 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %z.patt: %pattern_type.838 = binding_pattern z [concrete]
@@ -2829,7 +2829,7 @@ fn F() {
 // CHECK:STDOUT:     %return.param: ref %C2 = out_param call_param2
 // CHECK:STDOUT:     %return: ref %C2 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %C2.as.J2.impl.F.decl.loc39_33.2: %C2.as.J2.impl.F.type.05d6a0.2 = fn_decl @C2.as.J2.impl.F.loc39_33.2 [concrete = constants.%C2.as.J2.impl.F.bfa759.2] {
+// CHECK:STDOUT:   %C2.as.J2.impl.F.decl.loc39_33.2: %C2.as.J2.impl.F.type.88fb30.2 = fn_decl @C2.as.J2.impl.F.loc39_33.2 [concrete = constants.%C2.as.J2.impl.F.78bd1b.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.838 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.838 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %.param_patt: <error> = value_param_pattern <error>, call_param1 [concrete]
@@ -2865,11 +2865,11 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J2.F(@J2.%Self: %J2.type) {
-// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.541)]
-// CHECK:STDOUT:   %Self.as_type.loc19_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.f5c)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc19_14.1 [symbolic = %pattern_type (constants.%pattern_type.969)]
+// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1dc)]
+// CHECK:STDOUT:   %Self.as_type.loc19_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc19_14.1 (constants.%Self.as_type.338)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc19_14.1 [symbolic = %pattern_type (constants.%pattern_type.12f)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @J2.F.%Self.as_type.loc19_14.1 (%Self.as_type.f5c), %z.param: <error>) -> <error>;
+// CHECK:STDOUT:   fn(%self.param: @J2.F.%Self.as_type.loc19_14.1 (%Self.as_type.338), %z.param: <error>) -> <error>;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.J2.impl.F.loc30_33.1(%self.param: %empty_tuple.type, %z.param: %empty_struct_type) -> %empty_struct_type {
@@ -2880,7 +2880,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.J2.impl.F.loc30_33.2(%self.param: %empty_tuple.type, %.param: <error>) -> <error> [thunk @empty_tuple.type.as.J2.impl.%empty_tuple.type.as.J2.impl.F.decl.loc30_33.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.J2.impl.F.type.f405c5.1 = name_ref F, @empty_tuple.type.as.J2.impl.%empty_tuple.type.as.J2.impl.F.decl.loc30_33.1 [concrete = constants.%empty_tuple.type.as.J2.impl.F.214a71.1]
+// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.J2.impl.F.type.d5ba25.1 = name_ref F, @empty_tuple.type.as.J2.impl.%empty_tuple.type.as.J2.impl.F.decl.loc30_33.1 [concrete = constants.%empty_tuple.type.as.J2.impl.F.a185df.1]
 // CHECK:STDOUT:   %self.ref: %empty_tuple.type = name_ref self, %self.param
 // CHECK:STDOUT:   %.ref: <error> = name_ref <none>, %.param
 // CHECK:STDOUT:   %return.ref: ref <error> = name_ref <return slot>, %return.param
@@ -2897,7 +2897,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C2.as.J2.impl.F.loc39_33.2(%self.param: %C2, %.param: <error>) -> <error> [thunk @C2.as.J2.impl.%C2.as.J2.impl.F.decl.loc39_33.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %C2.as.J2.impl.F.type.05d6a0.1 = name_ref F, @C2.as.J2.impl.%C2.as.J2.impl.F.decl.loc39_33.1 [concrete = constants.%C2.as.J2.impl.F.bfa759.1]
+// CHECK:STDOUT:   %F.ref: %C2.as.J2.impl.F.type.88fb30.1 = name_ref F, @C2.as.J2.impl.%C2.as.J2.impl.F.decl.loc39_33.1 [concrete = constants.%C2.as.J2.impl.F.78bd1b.1]
 // CHECK:STDOUT:   %self.ref: %C2 = name_ref self, %self.param
 // CHECK:STDOUT:   %.ref: <error> = name_ref <none>, %.param
 // CHECK:STDOUT:   %return.ref: ref <error> = name_ref <return slot>, %return.param
@@ -2906,24 +2906,24 @@ fn F() {
 // CHECK:STDOUT:   return <error>
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U2(constants.%Self.541) {}
+// CHECK:STDOUT: specific @U2(constants.%Self.1dc) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J2.F(constants.%Self.541) {
-// CHECK:STDOUT:   %Self => constants.%Self.541
-// CHECK:STDOUT:   %Self.as_type.loc19_14.1 => constants.%Self.as_type.f5c
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.969
+// CHECK:STDOUT: specific @J2.F(constants.%Self.1dc) {
+// CHECK:STDOUT:   %Self => constants.%Self.1dc
+// CHECK:STDOUT:   %Self.as_type.loc19_14.1 => constants.%Self.as_type.338
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.12f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U2(constants.%J2.facet.e30) {}
+// CHECK:STDOUT: specific @U2(constants.%J2.facet.c01) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J2.F(constants.%J2.facet.86f) {
-// CHECK:STDOUT:   %Self => constants.%J2.facet.86f
+// CHECK:STDOUT: specific @J2.F(constants.%J2.facet.2bd) {
+// CHECK:STDOUT:   %Self => constants.%J2.facet.2bd
 // CHECK:STDOUT:   %Self.as_type.loc19_14.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J2.F(constants.%J2.facet.c3f) {
-// CHECK:STDOUT:   %Self => constants.%J2.facet.c3f
+// CHECK:STDOUT: specific @J2.F(constants.%J2.facet.41b) {
+// CHECK:STDOUT:   %Self => constants.%J2.facet.41b
 // CHECK:STDOUT:   %Self.as_type.loc19_14.1 => constants.%C2
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.838
 // CHECK:STDOUT: }
@@ -2936,32 +2936,32 @@ fn F() {
 // CHECK:STDOUT:   %K.assoc_type: type = assoc_entity_type @K [concrete]
 // CHECK:STDOUT:   %assoc0: %K.assoc_type = assoc_entity element0, @K.%V [concrete]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.ca1: type = pattern_type %Self.as_type [symbolic]
-// CHECK:STDOUT:   %K.lookup_impl_witness.da8: <witness> = lookup_impl_witness %Self, @K [symbolic]
-// CHECK:STDOUT:   %K.facet.589: %K.type = facet_value %Self.as_type, (%K.lookup_impl_witness.da8) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.75d: type = impl_witness_access %K.lookup_impl_witness.da8, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6c7: type = pattern_type %impl.elem0.75d [symbolic]
+// CHECK:STDOUT:   %pattern_type.bc9: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %K.lookup_impl_witness.64b: <witness> = lookup_impl_witness %Self, @K [symbolic]
+// CHECK:STDOUT:   %K.facet.916: %K.type = facet_value %Self.as_type, (%K.lookup_impl_witness.64b) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.eff: type = impl_witness_access %K.lookup_impl_witness.64b, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.da4: type = pattern_type %impl.elem0.eff [symbolic]
 // CHECK:STDOUT:   %K.F.type: type = fn_type @K.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %K.F: %K.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %K.assoc_type = assoc_entity element1, @K.%K.F.decl [concrete]
 // CHECK:STDOUT:   %.Self: %K.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
-// CHECK:STDOUT:   %K.lookup_impl_witness.eb2: <witness> = lookup_impl_witness %.Self, @K [symbolic_self]
-// CHECK:STDOUT:   %K.facet.b09: %K.type = facet_value %.Self.as_type, (%K.lookup_impl_witness.eb2) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.52c: type = impl_witness_access %K.lookup_impl_witness.eb2, element0 [symbolic_self]
+// CHECK:STDOUT:   %K.lookup_impl_witness.776: <witness> = lookup_impl_witness %.Self, @K [symbolic_self]
+// CHECK:STDOUT:   %K.facet.917: %K.type = facet_value %.Self.as_type, (%K.lookup_impl_witness.776) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.654: type = impl_witness_access %K.lookup_impl_witness.776, element0 [symbolic_self]
 // CHECK:STDOUT:   %struct_type.a: type = struct_type {.a: %empty_tuple.type} [concrete]
-// CHECK:STDOUT:   %K_where.type: type = facet_type <@K where %impl.elem0.52c = %struct_type.a> [concrete]
+// CHECK:STDOUT:   %K_where.type: type = facet_type <@K where %impl.elem0.654 = %struct_type.a> [concrete]
 // CHECK:STDOUT:   %K.impl_witness: <witness> = impl_witness file.%K.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %struct_type.x: type = struct_type {.x: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %pattern_type.414: type = pattern_type %struct_type.x [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.type.c5249c.1: type = fn_type @empty_tuple.type.as.K.impl.F.loc16_45.1 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.5eb4dd.1: %empty_tuple.type.as.K.impl.F.type.c5249c.1 = struct_value () [concrete]
-// CHECK:STDOUT:   %K.facet.e32: %K.type = facet_value %empty_tuple.type, (%K.impl_witness) [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.type.be31a8.1: type = fn_type @empty_tuple.type.as.K.impl.F.loc16_45.1 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.062233.1: %empty_tuple.type.as.K.impl.F.type.be31a8.1 = struct_value () [concrete]
+// CHECK:STDOUT:   %K.facet.ca0: %K.type = facet_value %empty_tuple.type, (%K.impl_witness) [concrete]
 // CHECK:STDOUT:   %pattern_type.e85: type = pattern_type %struct_type.a [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.type.c5249c.2: type = fn_type @empty_tuple.type.as.K.impl.F.loc16_45.2 [concrete]
-// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.5eb4dd.2: %empty_tuple.type.as.K.impl.F.type.c5249c.2 = struct_value () [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.type.be31a8.2: type = fn_type @empty_tuple.type.as.K.impl.F.loc16_45.2 [concrete]
+// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.062233.2: %empty_tuple.type.as.K.impl.F.type.be31a8.2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2987,7 +2987,7 @@ fn F() {
 // CHECK:STDOUT:     %V.ref: %K.assoc_type = name_ref V, @V.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc8_20: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%K.lookup_impl_witness.eb2, element0 [symbolic_self = constants.%impl.elem0.52c]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%K.lookup_impl_witness.776, element0 [symbolic_self = constants.%impl.elem0.654]
 // CHECK:STDOUT:     %.loc8_31.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc8_31.2: type = converted %.loc8_31.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %struct_type.a: type = struct_type {.a: %empty_tuple.type} [concrete = constants.%struct_type.a]
@@ -3007,15 +3007,15 @@ fn F() {
 // CHECK:STDOUT:     %assoc0: %K.assoc_type = assoc_entity element0, @K.%V [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %K.F.decl: %K.F.type = fn_decl @K.F [concrete = constants.%K.F] {
-// CHECK:STDOUT:     %self.patt: @K.F.%pattern_type.loc5_8 (%pattern_type.ca1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @K.F.%pattern_type.loc5_8 (%pattern_type.ca1) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %v.patt: @K.F.%pattern_type.loc5_20 (%pattern_type.6c7) = binding_pattern v [concrete]
-// CHECK:STDOUT:     %v.param_patt: @K.F.%pattern_type.loc5_20 (%pattern_type.6c7) = value_param_pattern %v.patt, call_param1 [concrete]
-// CHECK:STDOUT:     %return.patt: @K.F.%pattern_type.loc5_20 (%pattern_type.6c7) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @K.F.%pattern_type.loc5_20 (%pattern_type.6c7) = out_param_pattern %return.patt, call_param2 [concrete]
+// CHECK:STDOUT:     %self.patt: @K.F.%pattern_type.loc5_8 (%pattern_type.bc9) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @K.F.%pattern_type.loc5_8 (%pattern_type.bc9) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %v.patt: @K.F.%pattern_type.loc5_20 (%pattern_type.da4) = binding_pattern v [concrete]
+// CHECK:STDOUT:     %v.param_patt: @K.F.%pattern_type.loc5_20 (%pattern_type.da4) = value_param_pattern %v.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %return.patt: @K.F.%pattern_type.loc5_20 (%pattern_type.da4) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @K.F.%pattern_type.loc5_20 (%pattern_type.da4) = out_param_pattern %return.patt, call_param2 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %impl.elem0.loc5_29: type = impl_witness_access constants.%K.lookup_impl_witness.da8, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.75d)]
-// CHECK:STDOUT:     %V.ref.loc5_29: type = name_ref V, %impl.elem0.loc5_29 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.75d)]
+// CHECK:STDOUT:     %impl.elem0.loc5_29: type = impl_witness_access constants.%K.lookup_impl_witness.64b, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.eff)]
+// CHECK:STDOUT:     %V.ref.loc5_29: type = name_ref V, %impl.elem0.loc5_29 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.eff)]
 // CHECK:STDOUT:     %self.param: @K.F.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
 // CHECK:STDOUT:       %Self.ref: %K.type = name_ref Self, @K.%Self [symbolic = %Self (constants.%Self)]
@@ -3023,14 +3023,14 @@ fn F() {
 // CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %self: @K.F.%Self.as_type.loc5_14.1 (%Self.as_type) = bind_name self, %self.param
-// CHECK:STDOUT:     %v.param: @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.75d) = value_param call_param1
-// CHECK:STDOUT:     %.loc5_23: type = splice_block %V.ref.loc5_23 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.75d)] {
-// CHECK:STDOUT:       %impl.elem0.loc5_23.2: type = impl_witness_access constants.%K.lookup_impl_witness.da8, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.75d)]
-// CHECK:STDOUT:       %V.ref.loc5_23: type = name_ref V, %impl.elem0.loc5_23.2 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.75d)]
+// CHECK:STDOUT:     %v.param: @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.eff) = value_param call_param1
+// CHECK:STDOUT:     %.loc5_23: type = splice_block %V.ref.loc5_23 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.eff)] {
+// CHECK:STDOUT:       %impl.elem0.loc5_23.2: type = impl_witness_access constants.%K.lookup_impl_witness.64b, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.eff)]
+// CHECK:STDOUT:       %V.ref.loc5_23: type = name_ref V, %impl.elem0.loc5_23.2 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.eff)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %v: @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.75d) = bind_name v, %v.param
-// CHECK:STDOUT:     %return.param: ref @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.75d) = out_param call_param2
-// CHECK:STDOUT:     %return: ref @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.75d) = return_slot %return.param
+// CHECK:STDOUT:     %v: @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.eff) = bind_name v, %v.param
+// CHECK:STDOUT:     %return.param: ref @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.eff) = out_param call_param2
+// CHECK:STDOUT:     %return: ref @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.eff) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %K.assoc_type = assoc_entity element1, %K.F.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -3046,7 +3046,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: impl @empty_tuple.type.as.K.impl: %.loc8_7.2 as %.loc8_14 {
-// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.decl.loc16_45.1: %empty_tuple.type.as.K.impl.F.type.c5249c.1 = fn_decl @empty_tuple.type.as.K.impl.F.loc16_45.1 [concrete = constants.%empty_tuple.type.as.K.impl.F.5eb4dd.1] {
+// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.decl.loc16_45.1: %empty_tuple.type.as.K.impl.F.type.be31a8.1 = fn_decl @empty_tuple.type.as.K.impl.F.loc16_45.1 [concrete = constants.%empty_tuple.type.as.K.impl.F.062233.1] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.cb1 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.cb1 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %v.patt: %pattern_type.414 = binding_pattern v [concrete]
@@ -3070,7 +3070,7 @@ fn F() {
 // CHECK:STDOUT:     %return.param: ref %struct_type.x = out_param call_param2
 // CHECK:STDOUT:     %return: ref %struct_type.x = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.decl.loc16_45.2: %empty_tuple.type.as.K.impl.F.type.c5249c.2 = fn_decl @empty_tuple.type.as.K.impl.F.loc16_45.2 [concrete = constants.%empty_tuple.type.as.K.impl.F.5eb4dd.2] {
+// CHECK:STDOUT:   %empty_tuple.type.as.K.impl.F.decl.loc16_45.2: %empty_tuple.type.as.K.impl.F.type.be31a8.2 = fn_decl @empty_tuple.type.as.K.impl.F.loc16_45.2 [concrete = constants.%empty_tuple.type.as.K.impl.F.062233.2] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.cb1 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.cb1 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %v.patt: %pattern_type.e85 = binding_pattern v [concrete]
@@ -3094,12 +3094,12 @@ fn F() {
 // CHECK:STDOUT: generic fn @K.F(@K.%Self: %K.type) {
 // CHECK:STDOUT:   %Self: %K.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.ca1)]
-// CHECK:STDOUT:   %K.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @K [symbolic = %K.lookup_impl_witness (constants.%K.lookup_impl_witness.da8)]
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1: type = impl_witness_access %K.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.75d)]
-// CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %impl.elem0.loc5_23.1 [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.6c7)]
+// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.bc9)]
+// CHECK:STDOUT:   %K.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @K [symbolic = %K.lookup_impl_witness (constants.%K.lookup_impl_witness.64b)]
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1: type = impl_witness_access %K.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_23.1 (constants.%impl.elem0.eff)]
+// CHECK:STDOUT:   %pattern_type.loc5_20: type = pattern_type %impl.elem0.loc5_23.1 [symbolic = %pattern_type.loc5_20 (constants.%pattern_type.da4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @K.F.%Self.as_type.loc5_14.1 (%Self.as_type), %v.param: @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.75d)) -> @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.75d);
+// CHECK:STDOUT:   fn(%self.param: @K.F.%Self.as_type.loc5_14.1 (%Self.as_type), %v.param: @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.eff)) -> @K.F.%impl.elem0.loc5_23.1 (%impl.elem0.eff);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.K.impl.F.loc16_45.1(%self.param: %empty_tuple.type, %v.param: %struct_type.x) -> %struct_type.x {
@@ -3110,7 +3110,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.K.impl.F.loc16_45.2(%self.param: %empty_tuple.type, %v.param: %struct_type.a) -> %struct_type.a [thunk @empty_tuple.type.as.K.impl.%empty_tuple.type.as.K.impl.F.decl.loc16_45.1] {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.K.impl.F.type.c5249c.1 = name_ref F, @empty_tuple.type.as.K.impl.%empty_tuple.type.as.K.impl.F.decl.loc16_45.1 [concrete = constants.%empty_tuple.type.as.K.impl.F.5eb4dd.1]
+// CHECK:STDOUT:   %F.ref: %empty_tuple.type.as.K.impl.F.type.be31a8.1 = name_ref F, @empty_tuple.type.as.K.impl.%empty_tuple.type.as.K.impl.F.decl.loc16_45.1 [concrete = constants.%empty_tuple.type.as.K.impl.F.062233.1]
 // CHECK:STDOUT:   %self.ref: %empty_tuple.type = name_ref self, %self.param
 // CHECK:STDOUT:   %v.ref: %struct_type.a = name_ref v, %v.param
 // CHECK:STDOUT:   %return.ref: ref %struct_type.a = name_ref <return slot>, %return.param
@@ -3119,21 +3119,21 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @V(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%K.facet.589) {}
+// CHECK:STDOUT: specific @V(constants.%K.facet.916) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @K.F(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.ca1
-// CHECK:STDOUT:   %K.lookup_impl_witness => constants.%K.lookup_impl_witness.da8
-// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.75d
-// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.6c7
+// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.bc9
+// CHECK:STDOUT:   %K.lookup_impl_witness => constants.%K.lookup_impl_witness.64b
+// CHECK:STDOUT:   %impl.elem0.loc5_23.1 => constants.%impl.elem0.eff
+// CHECK:STDOUT:   %pattern_type.loc5_20 => constants.%pattern_type.da4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V(constants.%K.facet.b09) {}
+// CHECK:STDOUT: specific @V(constants.%K.facet.917) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @K.F(constants.%K.facet.e32) {
-// CHECK:STDOUT:   %Self => constants.%K.facet.e32
+// CHECK:STDOUT: specific @K.F(constants.%K.facet.ca0) {
+// CHECK:STDOUT:   %Self => constants.%K.facet.ca0
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.cb1
 // CHECK:STDOUT:   %K.lookup_impl_witness => constants.%K.impl_witness
@@ -3158,7 +3158,7 @@ fn F() {
 // CHECK:STDOUT:   %.Self: %M.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
 // CHECK:STDOUT:   %M.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @M [symbolic_self]
-// CHECK:STDOUT:   %M.facet.caa: %M.type = facet_value %.Self.as_type, (%M.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %M.facet.c53: %M.type = facet_value %.Self.as_type, (%M.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: %struct_type.b.347 = impl_witness_access %M.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.b.347 = struct_value (%empty_struct) [concrete]
@@ -3166,7 +3166,7 @@ fn F() {
 // CHECK:STDOUT:   %M.impl_witness: <witness> = impl_witness file.%M.impl_witness_table [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.M.impl.G.type: type = fn_type @empty_tuple.type.as.M.impl.G [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.M.impl.G: %empty_tuple.type.as.M.impl.G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %M.facet.56b: %M.type = facet_value %empty_tuple.type, (%M.impl_witness) [concrete]
+// CHECK:STDOUT:   %M.facet.4b8: %M.type = facet_value %empty_tuple.type, (%M.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -3261,8 +3261,8 @@ fn F() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, @empty_tuple.type.as.M.impl.%.loc8_7.2 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %M.ref: type = name_ref M, file.%M.decl [concrete = constants.%M.type]
-// CHECK:STDOUT:   %M.facet: %M.type = facet_value constants.%empty_tuple.type, (constants.%M.impl_witness) [concrete = constants.%M.facet.56b]
-// CHECK:STDOUT:   %.loc10_18: %M.type = converted %Self.ref, %M.facet [concrete = constants.%M.facet.56b]
+// CHECK:STDOUT:   %M.facet: %M.type = facet_value constants.%empty_tuple.type, (constants.%M.impl_witness) [concrete = constants.%M.facet.4b8]
+// CHECK:STDOUT:   %.loc10_18: %M.type = converted %Self.ref, %M.facet [concrete = constants.%M.facet.4b8]
 // CHECK:STDOUT:   %Z.ref: %M.assoc_type = name_ref Z, @Z.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %.loc10_18 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %.loc10_23: type = converted %.loc10_18, %as_type [concrete = constants.%empty_tuple.type]
@@ -3275,11 +3275,11 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @M.G(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z(constants.%M.facet.caa) {}
+// CHECK:STDOUT: specific @Z(constants.%M.facet.c53) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @M.G(constants.%M.facet.56b) {}
+// CHECK:STDOUT: specific @M.G(constants.%M.facet.4b8) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z(constants.%M.facet.56b) {}
+// CHECK:STDOUT: specific @Z(constants.%M.facet.4b8) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- self_as_uses_correct_rewrite_constraint.carbon
 // CHECK:STDOUT:
@@ -3301,7 +3301,7 @@ fn F() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %M.type: type = facet_type <@M> [concrete]
-// CHECK:STDOUT:   %Self.bcc: %M.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.484: %M.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %struct_type.b.86f: type = struct_type {.b: type} [concrete]
 // CHECK:STDOUT:   %M.assoc_type: type = assoc_entity_type @M [concrete]
 // CHECK:STDOUT:   %assoc0: %M.assoc_type = assoc_entity element0, @M.%Z [concrete]
@@ -3309,26 +3309,26 @@ fn F() {
 // CHECK:STDOUT:   %M.G: %M.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %M.assoc_type = assoc_entity element1, @M.%M.G.decl [concrete]
 // CHECK:STDOUT:   %C.7a7: type = class_type @C, @C(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %.Self.a61: %M.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.a61 [symbolic_self]
-// CHECK:STDOUT:   %M.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.a61, @M [symbolic_self]
-// CHECK:STDOUT:   %M.facet.caa: %M.type = facet_value %.Self.as_type, (%M.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %.Self.78d: %M.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.78d [symbolic_self]
+// CHECK:STDOUT:   %M.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.78d, @M [symbolic_self]
+// CHECK:STDOUT:   %M.facet.c53: %M.type = facet_value %.Self.as_type, (%M.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: %struct_type.b.86f = impl_witness_access %M.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %struct_type.b.347: type = struct_type {.b: %empty_struct_type} [concrete]
 // CHECK:STDOUT:   %struct_type.b.161: type = struct_type {.b: %empty_tuple.type} [concrete]
 // CHECK:STDOUT:   %struct.0f3: %struct_type.b.86f = struct_value (%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %M_where.type.d04: type = facet_type <@M where %impl.elem0 = %struct.0f3> [concrete]
-// CHECK:STDOUT:   %M.impl_witness.baa: <witness> = impl_witness file.%M.impl_witness_table.loc10 [concrete]
-// CHECK:STDOUT:   %C.as.M.impl.G.type.d92: type = fn_type @C.as.M.impl.G.loc11 [concrete]
-// CHECK:STDOUT:   %C.as.M.impl.G.eac: %C.as.M.impl.G.type.d92 = struct_value () [concrete]
-// CHECK:STDOUT:   %M.facet.1dc: %M.type = facet_value %C.7a7, (%M.impl_witness.baa) [concrete]
+// CHECK:STDOUT:   %M_where.type.123: type = facet_type <@M where %impl.elem0 = %struct.0f3> [concrete]
+// CHECK:STDOUT:   %M.impl_witness.889: <witness> = impl_witness file.%M.impl_witness_table.loc10 [concrete]
+// CHECK:STDOUT:   %C.as.M.impl.G.type.d59: type = fn_type @C.as.M.impl.G.loc11 [concrete]
+// CHECK:STDOUT:   %C.as.M.impl.G.f14: %C.as.M.impl.G.type.d59 = struct_value () [concrete]
+// CHECK:STDOUT:   %M.facet.eff: %M.type = facet_value %C.7a7, (%M.impl_witness.889) [concrete]
 // CHECK:STDOUT:   %C.3a0: type = class_type @C, @C(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %struct.c94: %struct_type.b.86f = struct_value (%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %M_where.type.eda: type = facet_type <@M where %impl.elem0 = %struct.c94> [concrete]
-// CHECK:STDOUT:   %M.impl_witness.feb: <witness> = impl_witness file.%M.impl_witness_table.loc16 [concrete]
-// CHECK:STDOUT:   %C.as.M.impl.G.type.b29: type = fn_type @C.as.M.impl.G.loc17 [concrete]
-// CHECK:STDOUT:   %C.as.M.impl.G.f3b: %C.as.M.impl.G.type.b29 = struct_value () [concrete]
-// CHECK:STDOUT:   %M.facet.80d: %M.type = facet_value %C.3a0, (%M.impl_witness.feb) [concrete]
+// CHECK:STDOUT:   %M_where.type.998: type = facet_type <@M where %impl.elem0 = %struct.c94> [concrete]
+// CHECK:STDOUT:   %M.impl_witness.129: <witness> = impl_witness file.%M.impl_witness_table.loc16 [concrete]
+// CHECK:STDOUT:   %C.as.M.impl.G.type.379: type = fn_type @C.as.M.impl.G.loc17 [concrete]
+// CHECK:STDOUT:   %C.as.M.impl.G.e99: %C.as.M.impl.G.type.379 = struct_value () [concrete]
+// CHECK:STDOUT:   %M.facet.86a: %M.type = facet_value %C.3a0, (%M.impl_witness.129) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -3354,14 +3354,14 @@ fn F() {
 // CHECK:STDOUT:     %T.loc3_9.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc3_9.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %M.decl: type = interface_decl @M [concrete = constants.%M.type] {} {}
-// CHECK:STDOUT:   impl_decl @C.as.M.impl.8b4 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.M.impl.99b [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %.loc10_9: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:     %.loc10_10: type = converted %.loc10_9, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%empty_struct_type) [concrete = constants.%C.7a7]
 // CHECK:STDOUT:     %M.ref: type = name_ref M, file.%M.decl [concrete = constants.%M.type]
-// CHECK:STDOUT:     %.Self: %M.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.a61]
-// CHECK:STDOUT:     %.Self.ref: %M.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:     %.Self: %M.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.78d]
+// CHECK:STDOUT:     %.Self.ref: %M.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:     %Z.ref: %M.assoc_type = name_ref Z, @Z.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc10_23: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -3371,22 +3371,22 @@ fn F() {
 // CHECK:STDOUT:     %.loc10_36.2: type = converted %.loc10_35, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:     %struct: %struct_type.b.86f = struct_value (%.loc10_36.2) [concrete = constants.%struct.0f3]
 // CHECK:STDOUT:     %.loc10_36.3: %struct_type.b.86f = converted %.loc10_36.1, %struct [concrete = constants.%struct.0f3]
-// CHECK:STDOUT:     %.loc10_17: type = where_expr %.Self [concrete = constants.%M_where.type.d04] {
+// CHECK:STDOUT:     %.loc10_17: type = where_expr %.Self [concrete = constants.%M_where.type.123] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%M.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc10_36.3
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %M.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10, @C.as.M.impl.8b4.%C.as.M.impl.G.decl), @C.as.M.impl.8b4 [concrete]
-// CHECK:STDOUT:   %M.impl_witness.loc10: <witness> = impl_witness %M.impl_witness_table.loc10 [concrete = constants.%M.impl_witness.baa]
+// CHECK:STDOUT:   %M.impl_witness_table.loc10 = impl_witness_table (%impl_witness_assoc_constant.loc10, @C.as.M.impl.99b.%C.as.M.impl.G.decl), @C.as.M.impl.99b [concrete]
+// CHECK:STDOUT:   %M.impl_witness.loc10: <witness> = impl_witness %M.impl_witness_table.loc10 [concrete = constants.%M.impl_witness.889]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc10: %struct_type.b.86f = impl_witness_assoc_constant constants.%struct.0f3 [concrete = constants.%struct.0f3]
-// CHECK:STDOUT:   impl_decl @C.as.M.impl.d97 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.M.impl.148 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %.loc16_9: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc16_10: type = converted %.loc16_9, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%empty_tuple.type) [concrete = constants.%C.3a0]
 // CHECK:STDOUT:     %M.ref: type = name_ref M, file.%M.decl [concrete = constants.%M.type]
-// CHECK:STDOUT:     %.Self: %M.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.a61]
-// CHECK:STDOUT:     %.Self.ref: %M.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.a61]
+// CHECK:STDOUT:     %.Self: %M.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.78d]
+// CHECK:STDOUT:     %.Self.ref: %M.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.78d]
 // CHECK:STDOUT:     %Z.ref: %M.assoc_type = name_ref Z, @Z.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc16_23: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -3396,18 +3396,18 @@ fn F() {
 // CHECK:STDOUT:     %.loc16_36.2: type = converted %.loc16_35, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %struct: %struct_type.b.86f = struct_value (%.loc16_36.2) [concrete = constants.%struct.c94]
 // CHECK:STDOUT:     %.loc16_36.3: %struct_type.b.86f = converted %.loc16_36.1, %struct [concrete = constants.%struct.c94]
-// CHECK:STDOUT:     %.loc16_17: type = where_expr %.Self [concrete = constants.%M_where.type.eda] {
+// CHECK:STDOUT:     %.loc16_17: type = where_expr %.Self [concrete = constants.%M_where.type.998] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%M.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %.loc16_36.3
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %M.impl_witness_table.loc16 = impl_witness_table (%impl_witness_assoc_constant.loc16, @C.as.M.impl.d97.%C.as.M.impl.G.decl), @C.as.M.impl.d97 [concrete]
-// CHECK:STDOUT:   %M.impl_witness.loc16: <witness> = impl_witness %M.impl_witness_table.loc16 [concrete = constants.%M.impl_witness.feb]
+// CHECK:STDOUT:   %M.impl_witness_table.loc16 = impl_witness_table (%impl_witness_assoc_constant.loc16, @C.as.M.impl.148.%C.as.M.impl.G.decl), @C.as.M.impl.148 [concrete]
+// CHECK:STDOUT:   %M.impl_witness.loc16: <witness> = impl_witness %M.impl_witness_table.loc16 [concrete = constants.%M.impl_witness.129]
 // CHECK:STDOUT:   %impl_witness_assoc_constant.loc16: %struct_type.b.86f = impl_witness_assoc_constant constants.%struct.c94 [concrete = constants.%struct.c94]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @M {
-// CHECK:STDOUT:   %Self: %M.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.bcc]
+// CHECK:STDOUT:   %Self: %M.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.484]
 // CHECK:STDOUT:   %Z: %struct_type.b.86f = assoc_const_decl @Z [concrete] {
 // CHECK:STDOUT:     %assoc0: %M.assoc_type = assoc_entity element0, @M.%Z [concrete = constants.%assoc0]
 // CHECK:STDOUT:   }
@@ -3460,8 +3460,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.M.impl.8b4: %C as %.loc10_17 {
-// CHECK:STDOUT:   %C.as.M.impl.G.decl: %C.as.M.impl.G.type.d92 = fn_decl @C.as.M.impl.G.loc11 [concrete = constants.%C.as.M.impl.G.eac] {
+// CHECK:STDOUT: impl @C.as.M.impl.99b: %C as %.loc10_17 {
+// CHECK:STDOUT:   %C.as.M.impl.G.decl: %C.as.M.impl.G.type.d59 = fn_decl @C.as.M.impl.G.loc11 [concrete = constants.%C.as.M.impl.G.f14] {
 // CHECK:STDOUT:     %return.patt: %pattern_type.98f = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.98f = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -3475,8 +3475,8 @@ fn F() {
 // CHECK:STDOUT:   witness = file.%M.impl_witness.loc10
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.M.impl.d97: %C as %.loc16_17 {
-// CHECK:STDOUT:   %C.as.M.impl.G.decl: %C.as.M.impl.G.type.b29 = fn_decl @C.as.M.impl.G.loc17 [concrete = constants.%C.as.M.impl.G.f3b] {
+// CHECK:STDOUT: impl @C.as.M.impl.148: %C as %.loc16_17 {
+// CHECK:STDOUT:   %C.as.M.impl.G.decl: %C.as.M.impl.G.type.379 = fn_decl @C.as.M.impl.G.loc17 [concrete = constants.%C.as.M.impl.G.e99] {
 // CHECK:STDOUT:     %return.patt: %pattern_type.98f = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.98f = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -3525,28 +3525,28 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.M.impl.G.loc11() -> type {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %Self.ref: type = name_ref Self, @C.as.M.impl.8b4.%C [concrete = constants.%C.7a7]
+// CHECK:STDOUT:   %Self.ref: type = name_ref Self, @C.as.M.impl.99b.%C [concrete = constants.%C.7a7]
 // CHECK:STDOUT:   %M.ref: type = name_ref M, file.%M.decl [concrete = constants.%M.type]
-// CHECK:STDOUT:   %M.facet: %M.type = facet_value constants.%C.7a7, (constants.%M.impl_witness.baa) [concrete = constants.%M.facet.1dc]
-// CHECK:STDOUT:   %.loc12_18: %M.type = converted %Self.ref, %M.facet [concrete = constants.%M.facet.1dc]
+// CHECK:STDOUT:   %M.facet: %M.type = facet_value constants.%C.7a7, (constants.%M.impl_witness.889) [concrete = constants.%M.facet.eff]
+// CHECK:STDOUT:   %.loc12_18: %M.type = converted %Self.ref, %M.facet [concrete = constants.%M.facet.eff]
 // CHECK:STDOUT:   %Z.ref: %M.assoc_type = name_ref Z, @Z.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %.loc12_18 [concrete = constants.%C.7a7]
 // CHECK:STDOUT:   %.loc12_23: type = converted %.loc12_18, %as_type [concrete = constants.%C.7a7]
-// CHECK:STDOUT:   %impl.elem0: %struct_type.b.86f = impl_witness_access constants.%M.impl_witness.baa, element0 [concrete = constants.%struct.0f3]
+// CHECK:STDOUT:   %impl.elem0: %struct_type.b.86f = impl_witness_access constants.%M.impl_witness.889, element0 [concrete = constants.%struct.0f3]
 // CHECK:STDOUT:   %.loc12_25: type = struct_access %impl.elem0, element0 [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   return %.loc12_25
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.M.impl.G.loc17() -> type {
 // CHECK:STDOUT: !entry:
-// CHECK:STDOUT:   %Self.ref: type = name_ref Self, @C.as.M.impl.d97.%C [concrete = constants.%C.3a0]
+// CHECK:STDOUT:   %Self.ref: type = name_ref Self, @C.as.M.impl.148.%C [concrete = constants.%C.3a0]
 // CHECK:STDOUT:   %M.ref: type = name_ref M, file.%M.decl [concrete = constants.%M.type]
-// CHECK:STDOUT:   %M.facet: %M.type = facet_value constants.%C.3a0, (constants.%M.impl_witness.feb) [concrete = constants.%M.facet.80d]
-// CHECK:STDOUT:   %.loc18_18: %M.type = converted %Self.ref, %M.facet [concrete = constants.%M.facet.80d]
+// CHECK:STDOUT:   %M.facet: %M.type = facet_value constants.%C.3a0, (constants.%M.impl_witness.129) [concrete = constants.%M.facet.86a]
+// CHECK:STDOUT:   %.loc18_18: %M.type = converted %Self.ref, %M.facet [concrete = constants.%M.facet.86a]
 // CHECK:STDOUT:   %Z.ref: %M.assoc_type = name_ref Z, @Z.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %.loc18_18 [concrete = constants.%C.3a0]
 // CHECK:STDOUT:   %.loc18_23: type = converted %.loc18_18, %as_type [concrete = constants.%C.3a0]
-// CHECK:STDOUT:   %impl.elem0: %struct_type.b.86f = impl_witness_access constants.%M.impl_witness.feb, element0 [concrete = constants.%struct.c94]
+// CHECK:STDOUT:   %impl.elem0: %struct_type.b.86f = impl_witness_access constants.%M.impl_witness.129, element0 [concrete = constants.%struct.c94]
 // CHECK:STDOUT:   %.loc18_25: type = struct_access %impl.elem0, element0 [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   return %.loc18_25
 // CHECK:STDOUT: }
@@ -3568,33 +3568,33 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.1d2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z(constants.%Self.bcc) {}
+// CHECK:STDOUT: specific @Z(constants.%Self.484) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @M.G(constants.%Self.bcc) {}
+// CHECK:STDOUT: specific @M.G(constants.%Self.484) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%empty_struct_type) {
 // CHECK:STDOUT:   %T.loc3_9.1 => constants.%empty_struct_type
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z(constants.%M.facet.caa) {}
+// CHECK:STDOUT: specific @Z(constants.%M.facet.c53) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @M.G(constants.%M.facet.1dc) {}
+// CHECK:STDOUT: specific @M.G(constants.%M.facet.eff) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z(constants.%M.facet.1dc) {}
+// CHECK:STDOUT: specific @Z(constants.%M.facet.eff) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%empty_tuple.type) {
 // CHECK:STDOUT:   %T.loc3_9.1 => constants.%empty_tuple.type
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @M.G(constants.%M.facet.80d) {}
+// CHECK:STDOUT: specific @M.G(constants.%M.facet.86a) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Z(constants.%M.facet.80d) {}
+// CHECK:STDOUT: specific @Z(constants.%M.facet.86a) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- associated_int_in_array.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
@@ -3602,64 +3602,64 @@ fn F() {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.995: %I.assoc_type = assoc_entity element0, @I.%N [concrete]
-// CHECK:STDOUT:   %Self.as_type.b70: type = facet_access_type %Self.826 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type.b70 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.4af: type = facet_access_type %Self.ce4 [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type.4af [symbolic]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.lookup_impl_witness.5d6: <witness> = lookup_impl_witness %Self.826, @I [symbolic]
-// CHECK:STDOUT:   %I.facet.93d: %I.type = facet_value %Self.as_type.b70, (%I.lookup_impl_witness.5d6) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.fab: %i32 = impl_witness_access %I.lookup_impl_witness.5d6, element0 [symbolic]
+// CHECK:STDOUT:   %I.lookup_impl_witness.b67: <witness> = lookup_impl_witness %Self.ce4, @I [symbolic]
+// CHECK:STDOUT:   %I.facet.22e: %I.type = facet_value %Self.as_type.4af, (%I.lookup_impl_witness.b67) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.613: %i32 = impl_witness_access %I.lookup_impl_witness.b67, element0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.f49: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.f49 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.44d: <bound method> = bound_method %impl.elem0.fab, %Int.as.ImplicitAs.impl.Convert.960 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.81c: <bound method> = bound_method %impl.elem0.fab, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.81c(%impl.elem0.fab) [symbolic]
-// CHECK:STDOUT:   %array_type.377: type = array_type %Int.as.ImplicitAs.impl.Convert.call, bool [symbolic]
-// CHECK:STDOUT:   %pattern_type.bc6: type = pattern_type %array_type.377 [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.4d7: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.4d7 [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.cd9: <bound method> = bound_method %impl.elem0.613, %Int.as.ImplicitAs.impl.Convert.87c [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b4f: <bound method> = bound_method %impl.elem0.613, %Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call: init Core.IntLiteral = call %bound_method.b4f(%impl.elem0.613) [symbolic]
+// CHECK:STDOUT:   %array_type.21d: type = array_type %Int.as.ImplicitAs.impl.Convert.call, bool [symbolic]
+// CHECK:STDOUT:   %pattern_type.ce4: type = pattern_type %array_type.21d [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %I.assoc_type = assoc_entity element1, @I.%I.F.decl [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness.5f5: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
-// CHECK:STDOUT:   %I.facet.74c: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness.5f5) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.d4d: %i32 = impl_witness_access %I.lookup_impl_witness.5f5, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness.e6d: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
+// CHECK:STDOUT:   %I.facet.86d: %I.type = facet_value %.Self.as_type, (%I.lookup_impl_witness.e6d) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.9f8: %i32 = impl_witness_access %I.lookup_impl_witness.e6d, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0.d4d = %int_2.ef8> [concrete]
+// CHECK:STDOUT:   %I_where.type: type = facet_type <@I where %impl.elem0.9f8 = %int_2.ef8> [concrete]
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness file.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %array_type.c9b: type = array_type %int_2.ecc, bool [concrete]
 // CHECK:STDOUT:   %pattern_type.5d5: type = pattern_type %array_type.c9b [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F.type: type = fn_type @empty_tuple.type.as.I.impl.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.I.impl.F: %empty_tuple.type.as.I.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %I.facet.85d: %I.type = facet_value %empty_tuple.type, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.fbf: <bound method> = bound_method %int_2.ef8, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %bound_method.992: <bound method> = bound_method %int_2.ef8, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %I.facet.f37: %I.type = facet_value %empty_tuple.type, (%I.impl_witness) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.44d: <bound method> = bound_method %int_2.ef8, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %bound_method.a75: <bound method> = bound_method %int_2.ef8, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
 // CHECK:STDOUT:   %false: bool = bool_literal false [concrete]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (bool, bool) [concrete]
@@ -3679,10 +3679,10 @@ fn F() {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -3696,17 +3696,17 @@ fn F() {
 // CHECK:STDOUT:     %.loc8_7.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc8_7.2: type = converted %.loc8_7.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.258]
-// CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:     %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.92b]
+// CHECK:STDOUT:     %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:     %N.ref: %I.assoc_type = name_ref N, @N.%assoc0 [concrete = constants.%assoc0.995]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc8_20: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0.loc8_20: %i32 = impl_witness_access constants.%I.lookup_impl_witness.5f5, element0 [symbolic_self = constants.%impl.elem0.d4d]
+// CHECK:STDOUT:     %impl.elem0.loc8_20: %i32 = impl_witness_access constants.%I.lookup_impl_witness.e6d, element0 [symbolic_self = constants.%impl.elem0.9f8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem0.loc8_25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0.loc8_25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc8_25.1: <bound method> = bound_method %int_2, %impl.elem0.loc8_25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0.loc8_25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc8_25.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc8_25.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc8_25.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc8_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc8_25.2: %i32 = converted %int_2, %.loc8_25.1 [concrete = constants.%int_2.ef8]
@@ -3721,38 +3721,38 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %N: %i32 = assoc_const_decl @N [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%N [concrete = constants.%assoc0.995]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type.loc5_8 (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type.loc5_8 (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @I.F.%pattern_type.loc5_22 (%pattern_type.bc6) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @I.F.%pattern_type.loc5_22 (%pattern_type.bc6) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type.loc5_8 (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type.loc5_8 (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @I.F.%pattern_type.loc5_22 (%pattern_type.ce4) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @I.F.%pattern_type.loc5_22 (%pattern_type.ce4) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %Bool.call: init type = call constants.%Bool() [concrete = bool]
-// CHECK:STDOUT:     %impl.elem0.loc5_37.2: %i32 = impl_witness_access constants.%I.lookup_impl_witness.5d6, element0 [symbolic = %impl.elem0.loc5_37.1 (constants.%impl.elem0.fab)]
-// CHECK:STDOUT:     %N.ref: %i32 = name_ref N, %impl.elem0.loc5_37.2 [symbolic = %impl.elem0.loc5_37.1 (constants.%impl.elem0.fab)]
+// CHECK:STDOUT:     %impl.elem0.loc5_37.2: %i32 = impl_witness_access constants.%I.lookup_impl_witness.b67, element0 [symbolic = %impl.elem0.loc5_37.1 (constants.%impl.elem0.613)]
+// CHECK:STDOUT:     %N.ref: %i32 = name_ref N, %impl.elem0.loc5_37.2 [symbolic = %impl.elem0.loc5_37.1 (constants.%impl.elem0.613)]
 // CHECK:STDOUT:     %.loc5_31.1: type = value_of_initializer %Bool.call [concrete = bool]
 // CHECK:STDOUT:     %.loc5_31.2: type = converted %Bool.call, %.loc5_31.1 [concrete = bool]
-// CHECK:STDOUT:     %impl.elem0.loc5_37.3: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
-// CHECK:STDOUT:     %bound_method.loc5_37.2: <bound method> = bound_method %N.ref, %impl.elem0.loc5_37.3 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.44d)]
+// CHECK:STDOUT:     %impl.elem0.loc5_37.3: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
+// CHECK:STDOUT:     %bound_method.loc5_37.2: <bound method> = bound_method %N.ref, %impl.elem0.loc5_37.3 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.cd9)]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0.loc5_37.3, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc5_37.3: <bound method> = bound_method %N.ref, %specific_fn [symbolic = %bound_method.loc5_37.1 (constants.%bound_method.81c)]
+// CHECK:STDOUT:     %bound_method.loc5_37.3: <bound method> = bound_method %N.ref, %specific_fn [symbolic = %bound_method.loc5_37.1 (constants.%bound_method.b4f)]
 // CHECK:STDOUT:     %Int.as.ImplicitAs.impl.Convert.call.loc5_37.2: init Core.IntLiteral = call %bound_method.loc5_37.3(%N.ref) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc5_37.1: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc5_37.2 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
 // CHECK:STDOUT:     %.loc5_37.2: Core.IntLiteral = converted %N.ref, %.loc5_37.1 [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:     %array_type.loc5_38.2: type = array_type %.loc5_37.2, %.loc5_31.2 [symbolic = %array_type.loc5_38.1 (constants.%array_type.377)]
-// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.b70) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.b70)] {
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.b70)]
+// CHECK:STDOUT:     %array_type.loc5_38.2: type = array_type %.loc5_37.2, %.loc5_31.2 [symbolic = %array_type.loc5_38.1 (constants.%array_type.21d)]
+// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.4af) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4af)] {
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:       %Self.as_type.loc5_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:       %.loc5_14.2: type = converted %Self.ref, %Self.as_type.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4af)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.b70) = bind_name self, %self.param
-// CHECK:STDOUT:     %return.param: ref @I.F.%array_type.loc5_38.1 (%array_type.377) = out_param call_param1
-// CHECK:STDOUT:     %return: ref @I.F.%array_type.loc5_38.1 (%array_type.377) = return_slot %return.param
+// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.4af) = bind_name self, %self.param
+// CHECK:STDOUT:     %return.param: ref @I.F.%array_type.loc5_38.1 (%array_type.21d) = out_param call_param1
+// CHECK:STDOUT:     %return: ref @I.F.%array_type.loc5_38.1 (%array_type.21d) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %I.assoc_type = assoc_entity element1, %I.F.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -3792,18 +3792,18 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.826)]
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.b70)]
-// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.6de)]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness.5d6)]
-// CHECK:STDOUT:   %impl.elem0.loc5_37.1: %i32 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_37.1 (constants.%impl.elem0.fab)]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %impl.elem0.loc5_37.1, constants.%Int.as.ImplicitAs.impl.Convert.960 [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.44d)]
-// CHECK:STDOUT:   %bound_method.loc5_37.1: <bound method> = bound_method %impl.elem0.loc5_37.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc5_37.1 (constants.%bound_method.81c)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.ce4)]
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type.4af)]
+// CHECK:STDOUT:   %pattern_type.loc5_8: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type.loc5_8 (constants.%pattern_type.802)]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness.b67)]
+// CHECK:STDOUT:   %impl.elem0.loc5_37.1: %i32 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc5_37.1 (constants.%impl.elem0.613)]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %impl.elem0.loc5_37.1, constants.%Int.as.ImplicitAs.impl.Convert.87c [symbolic = %Int.as.ImplicitAs.impl.Convert.bound (constants.%Int.as.ImplicitAs.impl.Convert.bound.cd9)]
+// CHECK:STDOUT:   %bound_method.loc5_37.1: <bound method> = bound_method %impl.elem0.loc5_37.1, constants.%Int.as.ImplicitAs.impl.Convert.specific_fn [symbolic = %bound_method.loc5_37.1 (constants.%bound_method.b4f)]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1: init Core.IntLiteral = call %bound_method.loc5_37.1(%impl.elem0.loc5_37.1) [symbolic = %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1 (constants.%Int.as.ImplicitAs.impl.Convert.call)]
-// CHECK:STDOUT:   %array_type.loc5_38.1: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1, bool [symbolic = %array_type.loc5_38.1 (constants.%array_type.377)]
-// CHECK:STDOUT:   %pattern_type.loc5_22: type = pattern_type %array_type.loc5_38.1 [symbolic = %pattern_type.loc5_22 (constants.%pattern_type.bc6)]
+// CHECK:STDOUT:   %array_type.loc5_38.1: type = array_type %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1, bool [symbolic = %array_type.loc5_38.1 (constants.%array_type.21d)]
+// CHECK:STDOUT:   %pattern_type.loc5_22: type = pattern_type %array_type.loc5_38.1 [symbolic = %pattern_type.loc5_22 (constants.%pattern_type.ce4)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.b70)) -> @I.F.%array_type.loc5_38.1 (%array_type.377);
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type.4af)) -> @I.F.%array_type.loc5_38.1 (%array_type.21d);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @empty_tuple.type.as.I.impl.F(%self.param: %empty_tuple.type) -> %return.param: %array_type.c9b {
@@ -3822,33 +3822,33 @@ fn F() {
 // CHECK:STDOUT:   return %.loc9_62 to %return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @N(constants.%Self.826) {}
+// CHECK:STDOUT: specific @N(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @N(constants.%I.facet.93d) {}
+// CHECK:STDOUT: specific @N(constants.%I.facet.22e) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {
-// CHECK:STDOUT:   %Self => constants.%Self.826
-// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.b70
-// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.6de
-// CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.lookup_impl_witness.5d6
-// CHECK:STDOUT:   %impl.elem0.loc5_37.1 => constants.%impl.elem0.fab
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound.44d
-// CHECK:STDOUT:   %bound_method.loc5_37.1 => constants.%bound_method.81c
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {
+// CHECK:STDOUT:   %Self => constants.%Self.ce4
+// CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type.4af
+// CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.802
+// CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.lookup_impl_witness.b67
+// CHECK:STDOUT:   %impl.elem0.loc5_37.1 => constants.%impl.elem0.613
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound.cd9
+// CHECK:STDOUT:   %bound_method.loc5_37.1 => constants.%bound_method.b4f
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1 => constants.%Int.as.ImplicitAs.impl.Convert.call
-// CHECK:STDOUT:   %array_type.loc5_38.1 => constants.%array_type.377
-// CHECK:STDOUT:   %pattern_type.loc5_22 => constants.%pattern_type.bc6
+// CHECK:STDOUT:   %array_type.loc5_38.1 => constants.%array_type.21d
+// CHECK:STDOUT:   %pattern_type.loc5_22 => constants.%pattern_type.ce4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @N(constants.%I.facet.74c) {}
+// CHECK:STDOUT: specific @N(constants.%I.facet.86d) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%I.facet.85d) {
-// CHECK:STDOUT:   %Self => constants.%I.facet.85d
+// CHECK:STDOUT: specific @I.F(constants.%I.facet.f37) {
+// CHECK:STDOUT:   %Self => constants.%I.facet.f37
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%empty_tuple.type
 // CHECK:STDOUT:   %pattern_type.loc5_8 => constants.%pattern_type.cb1
 // CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.impl_witness
 // CHECK:STDOUT:   %impl.elem0.loc5_37.1 => constants.%int_2.ef8
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound.fbf
-// CHECK:STDOUT:   %bound_method.loc5_37.1 => constants.%bound_method.992
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound => constants.%Int.as.ImplicitAs.impl.Convert.bound.44d
+// CHECK:STDOUT:   %bound_method.loc5_37.1 => constants.%bound_method.a75
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc5_37.1 => constants.%int_2.ecc
 // CHECK:STDOUT:   %array_type.loc5_38.1 => constants.%array_type.c9b
 // CHECK:STDOUT:   %pattern_type.loc5_22 => constants.%pattern_type.5d5
@@ -3858,7 +3858,7 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Z.type: type = facet_type <@Z> [concrete]
-// CHECK:STDOUT:   %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9ba: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Z.assoc_type: type = assoc_entity_type @Z [concrete]
 // CHECK:STDOUT:   %assoc0.659: %Z.assoc_type = assoc_entity element0, @Z.%X [concrete]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
@@ -3870,42 +3870,42 @@ fn F() {
 // CHECK:STDOUT:   %C.f2e: type = class_type @C, @C(%T) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.a08: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.299: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic]
 // CHECK:STDOUT:   %ptr.7d2: type = ptr_type %C.f2e [symbolic]
 // CHECK:STDOUT:   %pattern_type.1d2: type = pattern_type %ptr.7d2 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.7a1: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.d65: %C.as.Destroy.impl.Op.type.7a1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.0fe: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.649: %C.as.Destroy.impl.Op.type.0fe = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op: %D.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.ad0: %Z.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.ad0 [symbolic_self]
-// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.ad0, @Z [symbolic_self]
-// CHECK:STDOUT:   %Z.facet.2a2: %Z.type = facet_value %.Self.as_type, (%Z.lookup_impl_witness) [symbolic_self]
+// CHECK:STDOUT:   %.Self.f9e: %Z.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.f9e [symbolic_self]
+// CHECK:STDOUT:   %Z.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.f9e, @Z [symbolic_self]
+// CHECK:STDOUT:   %Z.facet.5f0: %Z.type = facet_value %.Self.as_type, (%Z.lookup_impl_witness) [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %Z.lookup_impl_witness, element0 [symbolic_self]
-// CHECK:STDOUT:   %Z_where.type.585: type = facet_type <@Z where %impl.elem0 = %C.f2e> [symbolic]
-// CHECK:STDOUT:   %require_complete.747: <witness> = require_complete_type %Z_where.type.585 [symbolic]
-// CHECK:STDOUT:   %Z.impl_witness.8bc: <witness> = impl_witness file.%Z.impl_witness_table, @T.as.Z.impl(%T) [symbolic]
+// CHECK:STDOUT:   %Z_where.type.21a: type = facet_type <@Z where %impl.elem0 = %C.f2e> [symbolic]
+// CHECK:STDOUT:   %require_complete.971: <witness> = require_complete_type %Z_where.type.21a [symbolic]
+// CHECK:STDOUT:   %Z.impl_witness.99f: <witness> = impl_witness file.%Z.impl_witness_table, @T.as.Z.impl(%T) [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.131: type = class_type @C, @C(%D) [concrete]
-// CHECK:STDOUT:   %Z_where.type.1a6: type = facet_type <@Z where %impl.elem0 = %C.131> [concrete]
-// CHECK:STDOUT:   %complete_type.00b: <witness> = complete_type_witness %Z_where.type.1a6 [concrete]
-// CHECK:STDOUT:   %Z.impl_witness.19e: <witness> = impl_witness file.%Z.impl_witness_table, @T.as.Z.impl(%D) [concrete]
-// CHECK:STDOUT:   %Z.facet.f2a: %Z.type = facet_value %D, (%Z.impl_witness.19e) [concrete]
+// CHECK:STDOUT:   %Z_where.type.eee: type = facet_type <@Z where %impl.elem0 = %C.131> [concrete]
+// CHECK:STDOUT:   %complete_type.7a1: <witness> = complete_type_witness %Z_where.type.eee [concrete]
+// CHECK:STDOUT:   %Z.impl_witness.bdd: <witness> = impl_witness file.%Z.impl_witness_table, @T.as.Z.impl(%D) [concrete]
+// CHECK:STDOUT:   %Z.facet.53c: %Z.type = facet_value %D, (%Z.impl_witness.bdd) [concrete]
 // CHECK:STDOUT:   %pattern_type.7f8: type = pattern_type %C.131 [concrete]
 // CHECK:STDOUT:   %C.val: %C.131 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.d44: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%D) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.6ac: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%D) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.e2a: %C.as.Destroy.impl.Op.type.6ac = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.5c3: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%D) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.92a: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%D) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.0cb: %C.as.Destroy.impl.Op.type.92a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.aaa: type = ptr_type %C.131 [concrete]
 // CHECK:STDOUT:   %pattern_type.b56: type = pattern_type %ptr.aaa [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.e2a, @C.as.Destroy.impl.Op(%D) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %C.as.Destroy.impl.Op.0cb, @C.as.Destroy.impl.Op(%D) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -3939,8 +3939,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc9_24: type = name_ref T, %T.loc9_14.1 [symbolic = %T.loc9_14.2 (constants.%T)]
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
-// CHECK:STDOUT:     %.Self.1: %Z.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.ad0]
-// CHECK:STDOUT:     %.Self.ref: %Z.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.ad0]
+// CHECK:STDOUT:     %.Self.1: %Z.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.f9e]
+// CHECK:STDOUT:     %.Self.ref: %Z.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.f9e]
 // CHECK:STDOUT:     %X.ref: %Z.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.659]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc9_37: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -3948,7 +3948,7 @@ fn F() {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %T.ref.loc9_44: type = name_ref T, %T.loc9_14.1 [symbolic = %T.loc9_14.2 (constants.%T)]
 // CHECK:STDOUT:     %C.loc9_45.1: type = class_type @C, @C(constants.%T) [symbolic = %C.loc9_45.2 (constants.%C.f2e)]
-// CHECK:STDOUT:     %.loc9_31: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.585)] {
+// CHECK:STDOUT:     %.loc9_31: type = where_expr %.Self.1 [symbolic = %Z_where.type (constants.%Z_where.type.21a)] {
 // CHECK:STDOUT:       requirement_base_facet_type constants.%Z.type
 // CHECK:STDOUT:       requirement_rewrite %impl.elem0, %C.loc9_45.1
 // CHECK:STDOUT:     }
@@ -3956,13 +3956,13 @@ fn F() {
 // CHECK:STDOUT:     %T.loc9_14.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_14.2 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Z.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @T.as.Z.impl [concrete]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table, @T.as.Z.impl(constants.%T) [symbolic = @T.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.8bc)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table, @T.as.Z.impl(constants.%T) [symbolic = @T.as.Z.impl.%Z.impl_witness (constants.%Z.impl_witness.99f)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%C.f2e [symbolic = @T.as.Z.impl.%C.loc9_45.2 (constants.%C.f2e)]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Z {
-// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
+// CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9ba]
 // CHECK:STDOUT:   %X: type = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:     %assoc0: %Z.assoc_type = assoc_entity element0, @Z.%X [concrete = constants.%assoc0.659]
 // CHECK:STDOUT:   }
@@ -3980,14 +3980,14 @@ fn F() {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%T.loc6_9.2: type) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.f2e)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%T) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.7a1)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.7a1) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.d65)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%T) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.0fe)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.0fe) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.649)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
-// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.7a1) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.d65)] {
+// CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.0fe) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.649)] {
 // CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.1d2) = binding_pattern self [concrete]
 // CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.1d2) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc6_19.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
@@ -4025,9 +4025,9 @@ fn F() {
 // CHECK:STDOUT: generic impl @T.as.Z.impl(%T.loc9_14.1: type) {
 // CHECK:STDOUT:   %T.loc9_14.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc9_14.2 (constants.%T)]
 // CHECK:STDOUT:   %C.loc9_45.2: type = class_type @C, @C(%T.loc9_14.2) [symbolic = %C.loc9_45.2 (constants.%C.f2e)]
-// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z where constants.%impl.elem0 = %C.loc9_45.2> [symbolic = %Z_where.type (constants.%Z_where.type.585)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete (constants.%require_complete.747)]
-// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table, @T.as.Z.impl(%T.loc9_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.8bc)]
+// CHECK:STDOUT:   %Z_where.type: type = facet_type <@Z where constants.%impl.elem0 = %C.loc9_45.2> [symbolic = %Z_where.type (constants.%Z_where.type.21a)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Z_where.type [symbolic = %require_complete (constants.%require_complete.971)]
+// CHECK:STDOUT:   %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table, @T.as.Z.impl(%T.loc9_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.99f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -4046,7 +4046,7 @@ fn F() {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.f2e [symbolic = @C.as.Destroy.impl.%C (constants.%C.f2e)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.a08)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%T) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.299)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -4059,7 +4059,7 @@ fn F() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -4097,21 +4097,21 @@ fn F() {
 // CHECK:STDOUT:     %D.ref.loc12_10: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
 // CHECK:STDOUT:     %X.ref: %Z.assoc_type = name_ref X, @X.%assoc0 [concrete = constants.%assoc0.659]
-// CHECK:STDOUT:     %Z.facet: %Z.type = facet_value constants.%D, (constants.%Z.impl_witness.19e) [concrete = constants.%Z.facet.f2a]
-// CHECK:STDOUT:     %.loc12_11.2: %Z.type = converted %D.ref.loc12_10, %Z.facet [concrete = constants.%Z.facet.f2a]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Z.impl_witness.19e, element0 [concrete = constants.%C.131]
+// CHECK:STDOUT:     %Z.facet: %Z.type = facet_value constants.%D, (constants.%Z.impl_witness.bdd) [concrete = constants.%Z.facet.53c]
+// CHECK:STDOUT:     %.loc12_11.2: %Z.type = converted %D.ref.loc12_10, %Z.facet [concrete = constants.%Z.facet.53c]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%Z.impl_witness.bdd, element0 [concrete = constants.%C.131]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %.loc12_23.2: %C.131 = bind_value %.loc12_23.1
 // CHECK:STDOUT:   %a: %C.131 = bind_name a, %.loc12_23.2
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_21.4, constants.%C.as.Destroy.impl.Op.e2a
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e2a, @C.as.Destroy.impl.Op(constants.%D) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc12_21.4, constants.%C.as.Destroy.impl.Op.0cb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.0cb, @C.as.Destroy.impl.Op(constants.%D) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc12_21.4, %C.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.aaa = addr_of %.loc12_21.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%Self.6e6) {}
+// CHECK:STDOUT: specific @X(constants.%Self.9ba) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%T) {
 // CHECK:STDOUT:   %T.loc6_9.1 => constants.%T
@@ -4120,7 +4120,7 @@ fn F() {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%T) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %C => constants.%C.f2e
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.a08
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.299
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%T) {
@@ -4130,22 +4130,22 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.1d2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%Z.facet.2a2) {}
+// CHECK:STDOUT: specific @X(constants.%Z.facet.5f0) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.Z.impl(constants.%T) {
 // CHECK:STDOUT:   %T.loc9_14.2 => constants.%T
 // CHECK:STDOUT:   %C.loc9_45.2 => constants.%C.f2e
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.585
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.747
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.8bc
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.21a
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.971
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.99f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @T.as.Z.impl(constants.%D) {
 // CHECK:STDOUT:   %T.loc9_14.2 => constants.%D
 // CHECK:STDOUT:   %C.loc9_45.2 => constants.%C.131
-// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.1a6
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.00b
-// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.19e
+// CHECK:STDOUT:   %Z_where.type => constants.%Z_where.type.eee
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.7a1
+// CHECK:STDOUT:   %Z.impl_witness => constants.%Z.impl_witness.bdd
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
@@ -4156,16 +4156,16 @@ fn F() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%Z.facet.f2a) {}
+// CHECK:STDOUT: specific @X(constants.%Z.facet.53c) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%D) {
 // CHECK:STDOUT:   %T => constants.%D
 // CHECK:STDOUT:   %C => constants.%C.131
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.d44
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.5c3
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.6ac
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.e2a
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.92a
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.0cb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%D) {
diff --git a/toolchain/check/testdata/index/array_element_access.carbon b/toolchain/check/testdata/index/array_element_access.carbon
index 91123b6f0c84..fdf1412743a3 100644
--- a/toolchain/check/testdata/index/array_element_access.carbon
+++ b/toolchain/check/testdata/index/array_element_access.carbon
@@ -33,31 +33,31 @@ var d: i32 = a[b];
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.dae: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.827: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_12.1e1: %i32 = int_value 12 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef4: <bound method> = bound_method %int_24.e3c, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.477: <bound method> = bound_method %int_24.e3c, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.527: <bound method> = bound_method %int_24.e3c, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.3c4: <bound method> = bound_method %int_24.e3c, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_24.365: %i32 = int_value 24 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_12.1e1, %int_24.365) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -70,8 +70,8 @@ var d: i32 = a[b];
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -132,19 +132,19 @@ var d: i32 = a[b];
 // CHECK:STDOUT:   %int_12: Core.IntLiteral = int_value 12 [concrete = constants.%int_12.6a3]
 // CHECK:STDOUT:   %int_24: Core.IntLiteral = int_value 24 [concrete = constants.%int_24.e3c]
 // CHECK:STDOUT:   %.loc15_31.1: %tuple.type = tuple_literal (%int_12, %int_24)
-// CHECK:STDOUT:   %impl.elem0.loc15_31.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_31.1: <bound method> = bound_method %int_12, %impl.elem0.loc15_31.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221]
+// CHECK:STDOUT:   %impl.elem0.loc15_31.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_31.1: <bound method> = bound_method %int_12, %impl.elem0.loc15_31.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4]
 // CHECK:STDOUT:   %specific_fn.loc15_31.1: <specific function> = specific_function %impl.elem0.loc15_31.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_31.2: <bound method> = bound_method %int_12, %specific_fn.loc15_31.1 [concrete = constants.%bound_method.dae]
+// CHECK:STDOUT:   %bound_method.loc15_31.2: <bound method> = bound_method %int_12, %specific_fn.loc15_31.1 [concrete = constants.%bound_method.827]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.1: init %i32 = call %bound_method.loc15_31.2(%int_12) [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %.loc15_31.2: init %i32 = converted %int_12, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.1 [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %int_0.loc15: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc15_31.3: ref %i32 = array_index file.%a.var, %int_0.loc15
 // CHECK:STDOUT:   %.loc15_31.4: init %i32 = initialize_from %.loc15_31.2 to %.loc15_31.3 [concrete = constants.%int_12.1e1]
-// CHECK:STDOUT:   %impl.elem0.loc15_31.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_31.3: <bound method> = bound_method %int_24, %impl.elem0.loc15_31.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef4]
+// CHECK:STDOUT:   %impl.elem0.loc15_31.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_31.3: <bound method> = bound_method %int_24, %impl.elem0.loc15_31.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.527]
 // CHECK:STDOUT:   %specific_fn.loc15_31.2: <specific function> = specific_function %impl.elem0.loc15_31.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_31.4: <bound method> = bound_method %int_24, %specific_fn.loc15_31.2 [concrete = constants.%bound_method.477]
+// CHECK:STDOUT:   %bound_method.loc15_31.4: <bound method> = bound_method %int_24, %specific_fn.loc15_31.2 [concrete = constants.%bound_method.3c4]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.2: init %i32 = call %bound_method.loc15_31.4(%int_24) [concrete = constants.%int_24.365]
 // CHECK:STDOUT:   %.loc15_31.5: init %i32 = converted %int_24, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.2 [concrete = constants.%int_24.365]
 // CHECK:STDOUT:   %int_1.loc15: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
@@ -154,10 +154,10 @@ var d: i32 = a[b];
 // CHECK:STDOUT:   %.loc15_1: init %array_type = converted %.loc15_31.1, %.loc15_31.8 [concrete = constants.%array]
 // CHECK:STDOUT:   assign file.%a.var, %.loc15_1
 // CHECK:STDOUT:   %int_1.loc16: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc16: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_1.1: <bound method> = bound_method %int_1.loc16, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc16: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_1.1: <bound method> = bound_method %int_1.loc16, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %impl.elem0.loc16, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_1.2: <bound method> = bound_method %int_1.loc16, %specific_fn.loc16 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc16_1.2: <bound method> = bound_method %int_1.loc16, %specific_fn.loc16 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16: init %i32 = call %bound_method.loc16_1.2(%int_1.loc16) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16: init %i32 = converted %int_1.loc16, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign file.%b.var, %.loc16
@@ -165,10 +165,10 @@ var d: i32 = a[b];
 // CHECK:STDOUT:   %int_0.loc17: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc17: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc17: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc17: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_16.1: <bound method> = bound_method %int_0.loc17, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc17: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_16.1: <bound method> = bound_method %int_0.loc17, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc17: <specific function> = specific_function %impl.elem0.loc17, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_16.2: <bound method> = bound_method %int_0.loc17, %specific_fn.loc17 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc17_16.2: <bound method> = bound_method %int_0.loc17, %specific_fn.loc17 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17: init %i32 = call %bound_method.loc17_16.2(%int_0.loc17) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc17_16.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc17_16.2: %i32 = converted %int_0.loc17, %.loc17_16.1 [concrete = constants.%int_0.6a9]
diff --git a/toolchain/check/testdata/index/expr_category.carbon b/toolchain/check/testdata/index/expr_category.carbon
index 0223d6f32982..27a2679c3052 100644
--- a/toolchain/check/testdata/index/expr_category.carbon
+++ b/toolchain/check/testdata/index/expr_category.carbon
@@ -54,44 +54,44 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_1.5d2, %int_2.ef8, %int_3.822) [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.829: <specific function> = specific_function %T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1e4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f0b: %T.as.Destroy.impl.Op.type.1e4 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.c51: <specific function> = specific_function %T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d25: <specific function> = specific_function %T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.330: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.a44: %T.as.Destroy.impl.Op.type.330 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.9a9: <specific function> = specific_function %T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(%array_type) [concrete]
 // CHECK:STDOUT:   %ValueBinding.type: type = fn_type @ValueBinding [concrete]
 // CHECK:STDOUT:   %ValueBinding: %ValueBinding.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -106,8 +106,8 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -171,28 +171,28 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_2.loc18_30: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %int_3.loc18_33: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc18_34.1: %tuple.type = tuple_literal (%int_1.loc18_27, %int_2.loc18_30, %int_3.loc18_33)
-// CHECK:STDOUT:   %impl.elem0.loc18_34.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_34.1: <bound method> = bound_method %int_1.loc18_27, %impl.elem0.loc18_34.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc18_34.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_34.1: <bound method> = bound_method %int_1.loc18_27, %impl.elem0.loc18_34.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc18_34.1: <specific function> = specific_function %impl.elem0.loc18_34.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_34.2: <bound method> = bound_method %int_1.loc18_27, %specific_fn.loc18_34.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc18_34.2: <bound method> = bound_method %int_1.loc18_27, %specific_fn.loc18_34.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_34.1: init %i32 = call %bound_method.loc18_34.2(%int_1.loc18_27) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_34.2: init %i32 = converted %int_1.loc18_27, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_34.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %int_0.loc18: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc18_34.3: ref %i32 = array_index %a.var, %int_0.loc18
 // CHECK:STDOUT:   %.loc18_34.4: init %i32 = initialize_from %.loc18_34.2 to %.loc18_34.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc18_34.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_34.3: <bound method> = bound_method %int_2.loc18_30, %impl.elem0.loc18_34.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc18_34.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_34.3: <bound method> = bound_method %int_2.loc18_30, %impl.elem0.loc18_34.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc18_34.2: <specific function> = specific_function %impl.elem0.loc18_34.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_34.4: <bound method> = bound_method %int_2.loc18_30, %specific_fn.loc18_34.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc18_34.4: <bound method> = bound_method %int_2.loc18_30, %specific_fn.loc18_34.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_34.2: init %i32 = call %bound_method.loc18_34.4(%int_2.loc18_30) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_34.5: init %i32 = converted %int_2.loc18_30, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_34.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %int_1.loc18_34: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc18_34.6: ref %i32 = array_index %a.var, %int_1.loc18_34
 // CHECK:STDOUT:   %.loc18_34.7: init %i32 = initialize_from %.loc18_34.5 to %.loc18_34.6 [concrete = constants.%int_2.ef8]
-// CHECK:STDOUT:   %impl.elem0.loc18_34.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_34.5: <bound method> = bound_method %int_3.loc18_33, %impl.elem0.loc18_34.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc18_34.3: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_34.5: <bound method> = bound_method %int_3.loc18_33, %impl.elem0.loc18_34.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc18_34.3: <specific function> = specific_function %impl.elem0.loc18_34.3, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_34.6: <bound method> = bound_method %int_3.loc18_33, %specific_fn.loc18_34.3 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc18_34.6: <bound method> = bound_method %int_3.loc18_33, %specific_fn.loc18_34.3 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_34.3: init %i32 = call %bound_method.loc18_34.6(%int_3.loc18_33) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc18_34.8: init %i32 = converted %int_3.loc18_33, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_34.3 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %int_2.loc18_34: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
@@ -217,10 +217,10 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.loc21: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc21_22: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc21_22: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_21.1: <bound method> = bound_method %int_0.loc21, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_21.1: <bound method> = bound_method %int_0.loc21, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc21: <specific function> = specific_function %impl.elem0.loc21, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_21.2: <bound method> = bound_method %int_0.loc21, %specific_fn.loc21 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc21_21.2: <bound method> = bound_method %int_0.loc21, %specific_fn.loc21 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21: init %i32 = call %bound_method.loc21_21.2(%int_0.loc21) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc21_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc21_21.2: %i32 = converted %int_0.loc21, %.loc21_21.1 [concrete = constants.%int_0.6a9]
@@ -237,29 +237,29 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.loc22: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc22: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc22: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc22_5: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_5.1: <bound method> = bound_method %int_0.loc22, %impl.elem0.loc22_5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc22_5: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_5.1: <bound method> = bound_method %int_0.loc22, %impl.elem0.loc22_5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc22_5: <specific function> = specific_function %impl.elem0.loc22_5, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_5.2: <bound method> = bound_method %int_0.loc22, %specific_fn.loc22_5 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc22_5.2: <bound method> = bound_method %int_0.loc22, %specific_fn.loc22_5 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_5: init %i32 = call %bound_method.loc22_5.2(%int_0.loc22) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc22_5.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_5 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc22_5.2: %i32 = converted %int_0.loc22, %.loc22_5.1 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc22_6: ref %i32 = array_index %a.ref.loc22, %.loc22_5.2
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc22_8: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_8.1: <bound method> = bound_method %int_4, %impl.elem0.loc22_8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc22_8: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_8.1: <bound method> = bound_method %int_4, %impl.elem0.loc22_8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc22_8: <specific function> = specific_function %impl.elem0.loc22_8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_8.2: <bound method> = bound_method %int_4, %specific_fn.loc22_8 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc22_8.2: <bound method> = bound_method %int_4, %specific_fn.loc22_8 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_8: init %i32 = call %bound_method.loc22_8.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc22_8: init %i32 = converted %int_4, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_8 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   assign %.loc22_6, %.loc22_8
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc21: <bound method> = bound_method %pa.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc21: <bound method> = bound_method %pa.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc21_3: <bound method> = bound_method %pa.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc21_3: %ptr.5d5 = addr_of %pa.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc21: init %empty_tuple.type = call %bound_method.loc21_3(%addr.loc21_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.f0b
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c51]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.a44
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.9a9]
 // CHECK:STDOUT:   %bound_method.loc18_3: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc18: %ptr.f01 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc18: init %empty_tuple.type = call %bound_method.loc18_3(%addr.loc18)
@@ -277,28 +277,28 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_2.loc26_30: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %int_3.loc26_33: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc26_34.1: %tuple.type = tuple_literal (%int_1.loc26_27, %int_2.loc26_30, %int_3.loc26_33)
-// CHECK:STDOUT:   %impl.elem0.loc26_34.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc26_34.1: <bound method> = bound_method %int_1.loc26_27, %impl.elem0.loc26_34.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc26_34.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc26_34.1: <bound method> = bound_method %int_1.loc26_27, %impl.elem0.loc26_34.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc26_34.1: <specific function> = specific_function %impl.elem0.loc26_34.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc26_34.2: <bound method> = bound_method %int_1.loc26_27, %specific_fn.loc26_34.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc26_34.2: <bound method> = bound_method %int_1.loc26_27, %specific_fn.loc26_34.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_34.1: init %i32 = call %bound_method.loc26_34.2(%int_1.loc26_27) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc26_34.2: init %i32 = converted %int_1.loc26_27, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_34.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %int_0.loc26: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc26_34.3: ref %i32 = array_index %a.var, %int_0.loc26
 // CHECK:STDOUT:   %.loc26_34.4: init %i32 = initialize_from %.loc26_34.2 to %.loc26_34.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc26_34.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc26_34.3: <bound method> = bound_method %int_2.loc26_30, %impl.elem0.loc26_34.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc26_34.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc26_34.3: <bound method> = bound_method %int_2.loc26_30, %impl.elem0.loc26_34.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc26_34.2: <specific function> = specific_function %impl.elem0.loc26_34.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc26_34.4: <bound method> = bound_method %int_2.loc26_30, %specific_fn.loc26_34.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc26_34.4: <bound method> = bound_method %int_2.loc26_30, %specific_fn.loc26_34.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_34.2: init %i32 = call %bound_method.loc26_34.4(%int_2.loc26_30) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc26_34.5: init %i32 = converted %int_2.loc26_30, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_34.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %int_1.loc26_34: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc26_34.6: ref %i32 = array_index %a.var, %int_1.loc26_34
 // CHECK:STDOUT:   %.loc26_34.7: init %i32 = initialize_from %.loc26_34.5 to %.loc26_34.6 [concrete = constants.%int_2.ef8]
-// CHECK:STDOUT:   %impl.elem0.loc26_34.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc26_34.5: <bound method> = bound_method %int_3.loc26_33, %impl.elem0.loc26_34.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc26_34.3: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc26_34.5: <bound method> = bound_method %int_3.loc26_33, %impl.elem0.loc26_34.3 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc26_34.3: <specific function> = specific_function %impl.elem0.loc26_34.3, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc26_34.6: <bound method> = bound_method %int_3.loc26_33, %specific_fn.loc26_34.3 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc26_34.6: <bound method> = bound_method %int_3.loc26_33, %specific_fn.loc26_34.3 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_34.3: init %i32 = call %bound_method.loc26_34.6(%int_3.loc26_33) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc26_34.8: init %i32 = converted %int_3.loc26_33, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_34.3 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %int_2.loc26_34: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
@@ -318,10 +318,10 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.loc30: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc30: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc30: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc30: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc30_5.1: <bound method> = bound_method %int_0.loc30, %impl.elem0.loc30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc30: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc30_5.1: <bound method> = bound_method %int_0.loc30, %impl.elem0.loc30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc30: <specific function> = specific_function %impl.elem0.loc30, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc30_5.2: <bound method> = bound_method %int_0.loc30, %specific_fn.loc30 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc30_5.2: <bound method> = bound_method %int_0.loc30, %specific_fn.loc30 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc30: init %i32 = call %bound_method.loc30_5.2(%int_0.loc30) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc30_5.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc30 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc30_5.2: %i32 = converted %int_0.loc30, %.loc30_5.1 [concrete = constants.%int_0.6a9]
@@ -330,10 +330,10 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.loc31: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc31: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc31: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc31: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc31_5.1: <bound method> = bound_method %int_0.loc31, %impl.elem0.loc31 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc31: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc31_5.1: <bound method> = bound_method %int_0.loc31, %impl.elem0.loc31 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc31: <specific function> = specific_function %impl.elem0.loc31, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc31_5.2: <bound method> = bound_method %int_0.loc31, %specific_fn.loc31 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc31_5.2: <bound method> = bound_method %int_0.loc31, %specific_fn.loc31 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc31: init %i32 = call %bound_method.loc31_5.2(%int_0.loc31) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc31_5.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc31 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc31_5.2: %i32 = converted %int_0.loc31, %.loc31_5.1 [concrete = constants.%int_0.6a9]
@@ -347,22 +347,22 @@ fn ValueBinding(b: array(i32, 3)) {
 // CHECK:STDOUT:   %.loc32_5.2: ref %array_type = temporary %.loc32_5.1, %F.call
 // CHECK:STDOUT:   %int_32.loc32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc32: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc32_7.1: <bound method> = bound_method %int_0.loc32, %impl.elem0.loc32 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc32: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc32_7.1: <bound method> = bound_method %int_0.loc32, %impl.elem0.loc32 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc32: <specific function> = specific_function %impl.elem0.loc32, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc32_7.2: <bound method> = bound_method %int_0.loc32, %specific_fn.loc32 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc32_7.2: <bound method> = bound_method %int_0.loc32, %specific_fn.loc32 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32: init %i32 = call %bound_method.loc32_7.2(%int_0.loc32) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc32_7.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc32_7.2: %i32 = converted %int_0.loc32, %.loc32_7.1 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc32_8.1: ref %i32 = array_index %.loc32_5.2, %.loc32_7.2
 // CHECK:STDOUT:   %.loc32_8.2: %i32 = bind_value %.loc32_8.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc32: <bound method> = bound_method %.loc32_5.2, constants.%T.as.Destroy.impl.Op.f0b
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c51]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc32: <bound method> = bound_method %.loc32_5.2, constants.%T.as.Destroy.impl.Op.a44
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.9a9]
 // CHECK:STDOUT:   %bound_method.loc32_5: <bound method> = bound_method %.loc32_5.2, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc32: %ptr.f01 = addr_of %.loc32_5.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc32: init %empty_tuple.type = call %bound_method.loc32_5(%addr.loc32)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.f0b
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c51]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.a44
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.9a9]
 // CHECK:STDOUT:   %bound_method.loc26_3: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc26: %ptr.f01 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc26: init %empty_tuple.type = call %bound_method.loc26_3(%addr.loc26)
diff --git a/toolchain/check/testdata/index/fail_array_large_index.carbon b/toolchain/check/testdata/index/fail_array_large_index.carbon
index df9f4da12920..b70b7bb4d813 100644
--- a/toolchain/check/testdata/index/fail_array_large_index.carbon
+++ b/toolchain/check/testdata/index/fail_array_large_index.carbon
@@ -41,28 +41,28 @@ var c: i32 = a[0x7FFF_FFFF];
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.dae: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.827: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_12.1e1: %i32 = int_value 12 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_12.1e1) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2147483647.d89: Core.IntLiteral = int_value 2147483647 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.f38: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.8e1: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.479: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.875: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2147483647.a74: %i32 = int_value 2147483647 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -75,8 +75,8 @@ var c: i32 = a[0x7FFF_FFFF];
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -125,10 +125,10 @@ var c: i32 = a[0x7FFF_FFFF];
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_12: Core.IntLiteral = int_value 12 [concrete = constants.%int_12.6a3]
 // CHECK:STDOUT:   %.loc15_28.1: %tuple.type = tuple_literal (%int_12)
-// CHECK:STDOUT:   %impl.elem0.loc15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_28.1: <bound method> = bound_method %int_12, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221]
+// CHECK:STDOUT:   %impl.elem0.loc15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_28.1: <bound method> = bound_method %int_12, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4]
 // CHECK:STDOUT:   %specific_fn.loc15: <specific function> = specific_function %impl.elem0.loc15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_28.2: <bound method> = bound_method %int_12, %specific_fn.loc15 [concrete = constants.%bound_method.dae]
+// CHECK:STDOUT:   %bound_method.loc15_28.2: <bound method> = bound_method %int_12, %specific_fn.loc15 [concrete = constants.%bound_method.827]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15: init %i32 = call %bound_method.loc15_28.2(%int_12) [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %.loc15_28.2: init %i32 = converted %int_12, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15 [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
@@ -141,10 +141,10 @@ var c: i32 = a[0x7FFF_FFFF];
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_32.loc21: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc21: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc21: <specific function> = specific_function %impl.elem0.loc21, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_16.2: <bound method> = bound_method %int_1, %specific_fn.loc21 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc21_16.2: <bound method> = bound_method %int_1, %specific_fn.loc21 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21: init %i32 = call %bound_method.loc21_16.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc21_16.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc21_16.2: %i32 = converted %int_1, %.loc21_16.1 [concrete = constants.%int_1.5d2]
@@ -155,10 +155,10 @@ var c: i32 = a[0x7FFF_FFFF];
 // CHECK:STDOUT:   %int_2147483647: Core.IntLiteral = int_value 2147483647 [concrete = constants.%int_2147483647.d89]
 // CHECK:STDOUT:   %int_32.loc27: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc27: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc27_16.1: <bound method> = bound_method %int_2147483647, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.f38]
+// CHECK:STDOUT:   %impl.elem0.loc27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc27_16.1: <bound method> = bound_method %int_2147483647, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.479]
 // CHECK:STDOUT:   %specific_fn.loc27: <specific function> = specific_function %impl.elem0.loc27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc27_16.2: <bound method> = bound_method %int_2147483647, %specific_fn.loc27 [concrete = constants.%bound_method.8e1]
+// CHECK:STDOUT:   %bound_method.loc27_16.2: <bound method> = bound_method %int_2147483647, %specific_fn.loc27 [concrete = constants.%bound_method.875]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27: init %i32 = call %bound_method.loc27_16.2(%int_2147483647) [concrete = constants.%int_2147483647.a74]
 // CHECK:STDOUT:   %.loc27_16.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27 [concrete = constants.%int_2147483647.a74]
 // CHECK:STDOUT:   %.loc27_16.2: %i32 = converted %int_2147483647, %.loc27_16.1 [concrete = constants.%int_2147483647.a74]
diff --git a/toolchain/check/testdata/index/fail_array_non_int_indexing.carbon b/toolchain/check/testdata/index/fail_array_non_int_indexing.carbon
index 0571881133d2..b8496ffde3a7 100644
--- a/toolchain/check/testdata/index/fail_array_non_int_indexing.carbon
+++ b/toolchain/check/testdata/index/fail_array_non_int_indexing.carbon
@@ -37,19 +37,19 @@ var b: i32 = a[2.6];
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_12.1e1: %i32 = int_value 12 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_12.1e1) [concrete]
@@ -65,8 +65,8 @@ var b: i32 = a[2.6];
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -104,7 +104,7 @@ var b: i32 = a[2.6];
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_12: Core.IntLiteral = int_value 12 [concrete = constants.%int_12.6a3]
 // CHECK:STDOUT:   %.loc15_28.1: %tuple.type = tuple_literal (%int_12)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_28.1: <bound method> = bound_method %int_12, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_28.2: <bound method> = bound_method %int_12, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/index/fail_array_out_of_bound_access.carbon b/toolchain/check/testdata/index/fail_array_out_of_bound_access.carbon
index 94e7a806fbd1..466104274b0e 100644
--- a/toolchain/check/testdata/index/fail_array_out_of_bound_access.carbon
+++ b/toolchain/check/testdata/index/fail_array_out_of_bound_access.carbon
@@ -34,24 +34,24 @@ var b: i32 = a[1];
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.dae: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.827: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_12.1e1: %i32 = int_value 12 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_12.1e1) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -64,8 +64,8 @@ var b: i32 = a[1];
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -103,10 +103,10 @@ var b: i32 = a[1];
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_12: Core.IntLiteral = int_value 12 [concrete = constants.%int_12.6a3]
 // CHECK:STDOUT:   %.loc15_28.1: %tuple.type = tuple_literal (%int_12)
-// CHECK:STDOUT:   %impl.elem0.loc15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_28.1: <bound method> = bound_method %int_12, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221]
+// CHECK:STDOUT:   %impl.elem0.loc15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_28.1: <bound method> = bound_method %int_12, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4]
 // CHECK:STDOUT:   %specific_fn.loc15: <specific function> = specific_function %impl.elem0.loc15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_28.2: <bound method> = bound_method %int_12, %specific_fn.loc15 [concrete = constants.%bound_method.dae]
+// CHECK:STDOUT:   %bound_method.loc15_28.2: <bound method> = bound_method %int_12, %specific_fn.loc15 [concrete = constants.%bound_method.827]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15: init %i32 = call %bound_method.loc15_28.2(%int_12) [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %.loc15_28.2: init %i32 = converted %int_12, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15 [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
@@ -119,10 +119,10 @@ var b: i32 = a[1];
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_16.2: <bound method> = bound_method %int_1, %specific_fn.loc20 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc20_16.2: <bound method> = bound_method %int_1, %specific_fn.loc20 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_16.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc20_16.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc20_16.2: %i32 = converted %int_1, %.loc20_16.1 [concrete = constants.%int_1.5d2]
diff --git a/toolchain/check/testdata/index/fail_expr_category.carbon b/toolchain/check/testdata/index/fail_expr_category.carbon
index 70d7c2ddf2da..deafe50e902c 100644
--- a/toolchain/check/testdata/index/fail_expr_category.carbon
+++ b/toolchain/check/testdata/index/fail_expr_category.carbon
@@ -62,32 +62,32 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1e4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f0b: %T.as.Destroy.impl.Op.type.1e4 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.c51: <specific function> = specific_function %T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(%array_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.330: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.a44: %T.as.Destroy.impl.Op.type.330 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.9a9: <specific function> = specific_function %T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(%array_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.829: <specific function> = specific_function %T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d25: <specific function> = specific_function %T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -100,8 +100,8 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -151,10 +151,10 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.loc23: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc23_22: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc23_22: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_21.1: <bound method> = bound_method %int_0.loc23, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc23: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_21.1: <bound method> = bound_method %int_0.loc23, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc23: <specific function> = specific_function %impl.elem0.loc23, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_21.2: <bound method> = bound_method %int_0.loc23, %specific_fn.loc23 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc23_21.2: <bound method> = bound_method %int_0.loc23, %specific_fn.loc23 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23: init %i32 = call %bound_method.loc23_21.2(%int_0.loc23) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc23_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc23_21.2: %i32 = converted %int_0.loc23, %.loc23_21.1 [concrete = constants.%int_0.6a9]
@@ -173,10 +173,10 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   %int_0.loc28: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc28: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc28: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc28_5: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc28_5.1: <bound method> = bound_method %int_0.loc28, %impl.elem0.loc28_5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc28_5: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc28_5.1: <bound method> = bound_method %int_0.loc28, %impl.elem0.loc28_5 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc28_5: <specific function> = specific_function %impl.elem0.loc28_5, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc28_5.2: <bound method> = bound_method %int_0.loc28, %specific_fn.loc28_5 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc28_5.2: <bound method> = bound_method %int_0.loc28, %specific_fn.loc28_5 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc28_5: init %i32 = call %bound_method.loc28_5.2(%int_0.loc28) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc28_5.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc28_5 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc28_5.2: %i32 = converted %int_0.loc28, %.loc28_5.1 [concrete = constants.%int_0.6a9]
@@ -184,10 +184,10 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   %.loc28_6.2: ref %i32 = array_index %.loc28_6.1, %.loc28_5.2
 // CHECK:STDOUT:   %.loc28_6.3: %i32 = bind_value %.loc28_6.2
 // CHECK:STDOUT:   %int_4.loc28: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc28_8: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc28_8.1: <bound method> = bound_method %int_4.loc28, %impl.elem0.loc28_8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc28_8: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc28_8.1: <bound method> = bound_method %int_4.loc28, %impl.elem0.loc28_8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc28_8: <specific function> = specific_function %impl.elem0.loc28_8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc28_8.2: <bound method> = bound_method %int_4.loc28, %specific_fn.loc28_8 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc28_8.2: <bound method> = bound_method %int_4.loc28, %specific_fn.loc28_8 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc28_8: init %i32 = call %bound_method.loc28_8.2(%int_4.loc28) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc28_8: init %i32 = converted %int_4.loc28, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc28_8 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   assign %.loc28_6.3, %.loc28_8
@@ -203,10 +203,10 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   %.loc36_21.2: ref %array_type = temporary %.loc36_21.1, %F.call.loc36
 // CHECK:STDOUT:   %int_32.loc36_24: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc36_24: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc36: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc36_23.1: <bound method> = bound_method %int_0.loc36, %impl.elem0.loc36 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc36: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc36_23.1: <bound method> = bound_method %int_0.loc36, %impl.elem0.loc36 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc36: <specific function> = specific_function %impl.elem0.loc36, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc36_23.2: <bound method> = bound_method %int_0.loc36, %specific_fn.loc36 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc36_23.2: <bound method> = bound_method %int_0.loc36, %specific_fn.loc36 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc36: init %i32 = call %bound_method.loc36_23.2(%int_0.loc36) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc36_23.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc36 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc36_23.2: %i32 = converted %int_0.loc36, %.loc36_23.1 [concrete = constants.%int_0.6a9]
@@ -227,40 +227,40 @@ fn G(b: array(i32, 3)) {
 // CHECK:STDOUT:   %.loc41_5.2: ref %array_type = temporary %.loc41_5.1, %F.call.loc41
 // CHECK:STDOUT:   %int_32.loc41: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc41: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc41_7: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc41_7.1: <bound method> = bound_method %int_0.loc41, %impl.elem0.loc41_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc41_7: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc41_7.1: <bound method> = bound_method %int_0.loc41, %impl.elem0.loc41_7 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc41_7: <specific function> = specific_function %impl.elem0.loc41_7, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc41_7.2: <bound method> = bound_method %int_0.loc41, %specific_fn.loc41_7 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc41_7.2: <bound method> = bound_method %int_0.loc41, %specific_fn.loc41_7 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc41_7: init %i32 = call %bound_method.loc41_7.2(%int_0.loc41) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc41_7.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc41_7 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc41_7.2: %i32 = converted %int_0.loc41, %.loc41_7.1 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc41_8.1: ref %i32 = array_index %.loc41_5.2, %.loc41_7.2
 // CHECK:STDOUT:   %.loc41_8.2: %i32 = bind_value %.loc41_8.1
 // CHECK:STDOUT:   %int_4.loc41: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc41_10: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc41_10.1: <bound method> = bound_method %int_4.loc41, %impl.elem0.loc41_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc41_10: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc41_10.1: <bound method> = bound_method %int_4.loc41, %impl.elem0.loc41_10 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc41_10: <specific function> = specific_function %impl.elem0.loc41_10, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc41_10.2: <bound method> = bound_method %int_4.loc41, %specific_fn.loc41_10 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc41_10.2: <bound method> = bound_method %int_4.loc41, %specific_fn.loc41_10 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc41_10: init %i32 = call %bound_method.loc41_10.2(%int_4.loc41) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc41_10: init %i32 = converted %int_4.loc41, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc41_10 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   assign %.loc41_8.2, %.loc41_10
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc41: <bound method> = bound_method %.loc41_5.2, constants.%T.as.Destroy.impl.Op.f0b
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c51]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc41: <bound method> = bound_method %.loc41_5.2, constants.%T.as.Destroy.impl.Op.a44
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.9a9]
 // CHECK:STDOUT:   %bound_method.loc41_5: <bound method> = bound_method %.loc41_5.2, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc41: %ptr.f01 = addr_of %.loc41_5.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc41: init %empty_tuple.type = call %bound_method.loc41_5(%addr.loc41)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc36_21: <bound method> = bound_method %.loc36_21.2, constants.%T.as.Destroy.impl.Op.f0b
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f0b, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c51]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc36_21: <bound method> = bound_method %.loc36_21.2, constants.%T.as.Destroy.impl.Op.a44
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.a44, @T.as.Destroy.impl.Op(constants.%array_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.9a9]
 // CHECK:STDOUT:   %bound_method.loc36_21: <bound method> = bound_method %.loc36_21.2, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc36_21: %ptr.f01 = addr_of %.loc36_21.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc36_21: init %empty_tuple.type = call %bound_method.loc36_21(%addr.loc36_21)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc36_3: <bound method> = bound_method %pf.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc36_3: <bound method> = bound_method %pf.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc36_3: <bound method> = bound_method %pf.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc36_3: %ptr.5d5 = addr_of %pf.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc36_3: init %empty_tuple.type = call %bound_method.loc36_3(%addr.loc36_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %pb.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %pb.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc23_3: <bound method> = bound_method %pb.var, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc23_3: %ptr.5d5 = addr_of %pb.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23_3(%addr.loc23_3)
diff --git a/toolchain/check/testdata/index/fail_name_not_found.carbon b/toolchain/check/testdata/index/fail_name_not_found.carbon
index 8c445aaa655b..4616e0afcc82 100644
--- a/toolchain/check/testdata/index/fail_name_not_found.carbon
+++ b/toolchain/check/testdata/index/fail_name_not_found.carbon
@@ -33,10 +33,10 @@ fn Main() {
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -75,8 +75,8 @@ fn Main() {
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %b: ref %i32 = bind_name b, %b.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %b.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %b.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %b.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/index/fail_negative_indexing.carbon b/toolchain/check/testdata/index/fail_negative_indexing.carbon
index 03442dda1764..5576b69365c1 100644
--- a/toolchain/check/testdata/index/fail_negative_indexing.carbon
+++ b/toolchain/check/testdata/index/fail_negative_indexing.carbon
@@ -35,35 +35,35 @@ var d: i32 = c[-10];
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.132: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c18: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.8c1: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.0fc: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [concrete]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_42.c68, %int_42.c68) [concrete]
 // CHECK:STDOUT:   %int_10: Core.IntLiteral = int_value 10 [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
-// CHECK:STDOUT:   %Negate.impl_witness.973: <witness> = impl_witness imports.%Negate.impl_witness_table.b22 [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.973) [concrete]
-// CHECK:STDOUT:   %.d3d: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Negate.impl_witness.2fb: <witness> = impl_witness imports.%Negate.impl_witness_table.1da [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.2fb) [concrete]
+// CHECK:STDOUT:   %.e9a: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.type: type = fn_type @Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op: %Core.IntLiteral.as.Negate.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.bound: <bound method> = bound_method %int_10, %Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %int_-10.06d: Core.IntLiteral = int_value -10 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.1ca: <bound method> = bound_method %int_-10.06d, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.af0: <bound method> = bound_method %int_-10.06d, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.32f: <bound method> = bound_method %int_-10.06d, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.a78: <bound method> = bound_method %int_-10.06d, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_-10.c17: %i32 = int_value -10 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -77,12 +77,12 @@ var d: i32 = c[-10];
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Negate: type = import_ref Core//prelude/parts/int_literal, Negate, loaded [concrete = constants.%Negate.type]
 // CHECK:STDOUT:   %Core.import_ref.abd = import_ref Core//prelude/parts/int_literal, loc13_50, unloaded
-// CHECK:STDOUT:   %Core.import_ref.5e6: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/parts/int_literal, loc14_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
-// CHECK:STDOUT:   %Negate.impl_witness_table.b22 = impl_witness_table (%Core.import_ref.abd, %Core.import_ref.5e6), @Core.IntLiteral.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.037: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/parts/int_literal, loc14_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %Negate.impl_witness_table.1da = impl_witness_table (%Core.import_ref.abd, %Core.import_ref.037), @Core.IntLiteral.as.Negate.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -121,19 +121,19 @@ var d: i32 = c[-10];
 // CHECK:STDOUT:   %int_42.loc15_25: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
 // CHECK:STDOUT:   %int_42.loc15_29: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
 // CHECK:STDOUT:   %.loc15_31.1: %tuple.type = tuple_literal (%int_42.loc15_25, %int_42.loc15_29)
-// CHECK:STDOUT:   %impl.elem0.loc15_31.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_31.1: <bound method> = bound_method %int_42.loc15_25, %impl.elem0.loc15_31.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.132]
+// CHECK:STDOUT:   %impl.elem0.loc15_31.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_31.1: <bound method> = bound_method %int_42.loc15_25, %impl.elem0.loc15_31.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c18]
 // CHECK:STDOUT:   %specific_fn.loc15_31.1: <specific function> = specific_function %impl.elem0.loc15_31.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_31.2: <bound method> = bound_method %int_42.loc15_25, %specific_fn.loc15_31.1 [concrete = constants.%bound_method.8c1]
+// CHECK:STDOUT:   %bound_method.loc15_31.2: <bound method> = bound_method %int_42.loc15_25, %specific_fn.loc15_31.1 [concrete = constants.%bound_method.0fc]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.1: init %i32 = call %bound_method.loc15_31.2(%int_42.loc15_25) [concrete = constants.%int_42.c68]
 // CHECK:STDOUT:   %.loc15_31.2: init %i32 = converted %int_42.loc15_25, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.1 [concrete = constants.%int_42.c68]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:   %.loc15_31.3: ref %i32 = array_index file.%c.var, %int_0
 // CHECK:STDOUT:   %.loc15_31.4: init %i32 = initialize_from %.loc15_31.2 to %.loc15_31.3 [concrete = constants.%int_42.c68]
-// CHECK:STDOUT:   %impl.elem0.loc15_31.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_31.3: <bound method> = bound_method %int_42.loc15_29, %impl.elem0.loc15_31.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.132]
+// CHECK:STDOUT:   %impl.elem0.loc15_31.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_31.3: <bound method> = bound_method %int_42.loc15_29, %impl.elem0.loc15_31.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c18]
 // CHECK:STDOUT:   %specific_fn.loc15_31.2: <specific function> = specific_function %impl.elem0.loc15_31.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_31.4: <bound method> = bound_method %int_42.loc15_29, %specific_fn.loc15_31.2 [concrete = constants.%bound_method.8c1]
+// CHECK:STDOUT:   %bound_method.loc15_31.4: <bound method> = bound_method %int_42.loc15_29, %specific_fn.loc15_31.2 [concrete = constants.%bound_method.0fc]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.2: init %i32 = call %bound_method.loc15_31.4(%int_42.loc15_29) [concrete = constants.%int_42.c68]
 // CHECK:STDOUT:   %.loc15_31.5: init %i32 = converted %int_42.loc15_29, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_31.2 [concrete = constants.%int_42.c68]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
@@ -144,15 +144,15 @@ var d: i32 = c[-10];
 // CHECK:STDOUT:   assign file.%c.var, %.loc15_1
 // CHECK:STDOUT:   %c.ref: ref %array_type = name_ref c, file.%c [concrete = file.%c.var]
 // CHECK:STDOUT:   %int_10: Core.IntLiteral = int_value 10 [concrete = constants.%int_10]
-// CHECK:STDOUT:   %impl.elem1: %.d3d = impl_witness_access constants.%Negate.impl_witness.973, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.e9a = impl_witness_access constants.%Negate.impl_witness.2fb, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc20_16.1: <bound method> = bound_method %int_10, %impl.elem1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op.bound]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.call: init Core.IntLiteral = call %bound_method.loc20_16.1(%int_10) [concrete = constants.%int_-10.06d]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_16.2: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.1ca]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_16.2: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.32f]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_16.3: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %specific_fn.loc20 [concrete = constants.%bound_method.af0]
+// CHECK:STDOUT:   %bound_method.loc20_16.3: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %specific_fn.loc20 [concrete = constants.%bound_method.a78]
 // CHECK:STDOUT:   %.loc20_16.1: Core.IntLiteral = value_of_initializer %Core.IntLiteral.as.Negate.impl.Op.call [concrete = constants.%int_-10.06d]
 // CHECK:STDOUT:   %.loc20_16.2: Core.IntLiteral = converted %Core.IntLiteral.as.Negate.impl.Op.call, %.loc20_16.1 [concrete = constants.%int_-10.06d]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_16.3(%.loc20_16.2) [concrete = constants.%int_-10.c17]
diff --git a/toolchain/check/testdata/interface/as_type_of_type.carbon b/toolchain/check/testdata/interface/as_type_of_type.carbon
index a27b8aa65a0a..8d8e2cb869ef 100644
--- a/toolchain/check/testdata/interface/as_type_of_type.carbon
+++ b/toolchain/check/testdata/interface/as_type_of_type.carbon
@@ -22,24 +22,24 @@ fn F(T:! Empty) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
-// CHECK:STDOUT:   %Self.193: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b05: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %T.193: %Empty.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6c3: type = pattern_type %Empty.type [concrete]
+// CHECK:STDOUT:   %T.b05: %Empty.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.291: type = pattern_type %Empty.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.193 [symbolic]
-// CHECK:STDOUT:   %require_complete.449: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %pattern_type.dad: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.b05 [symbolic]
+// CHECK:STDOUT:   %require_complete.c9d: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.838: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %ptr.5e1: type = ptr_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %require_complete.149: <witness> = require_complete_type %ptr.5e1 [symbolic]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.193, @Destroy [symbolic]
+// CHECK:STDOUT:   %ptr.20a: type = ptr_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.359: <witness> = require_complete_type %ptr.20a [symbolic]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.b05, @Destroy [symbolic]
 // CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.as_type, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.868: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.868 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.017: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.017 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.Op(%Destroy.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -61,18 +61,18 @@ fn F(T:! Empty) {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %Empty.decl: type = interface_decl @Empty [concrete = constants.%Empty.type] {} {}
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.6c3 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.291 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc17: type = splice_block %Empty.ref [concrete = constants.%Empty.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Empty.ref: type = name_ref Empty, file.%Empty.decl [concrete = constants.%Empty.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc17_6.2: %Empty.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_6.1 (constants.%T.193)]
+// CHECK:STDOUT:     %T.loc17_6.2: %Empty.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_6.1 (constants.%T.b05)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Empty {
-// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.193]
+// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b05]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -80,46 +80,46 @@ fn F(T:! Empty) {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @F(%T.loc17_6.2: %Empty.type) {
-// CHECK:STDOUT:   %T.loc17_6.1: %Empty.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_6.1 (constants.%T.193)]
+// CHECK:STDOUT:   %T.loc17_6.1: %Empty.type = bind_symbolic_name T, 0 [symbolic = %T.loc17_6.1 (constants.%T.b05)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T.as_type.loc18_10.2: type = facet_access_type %T.loc17_6.1 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
-// CHECK:STDOUT:   %require_complete.loc18_10: <witness> = require_complete_type %T.as_type.loc18_10.2 [symbolic = %require_complete.loc18_10 (constants.%require_complete.449)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc18_10.2 [symbolic = %pattern_type (constants.%pattern_type.dad)]
+// CHECK:STDOUT:   %require_complete.loc18_10: <witness> = require_complete_type %T.as_type.loc18_10.2 [symbolic = %require_complete.loc18_10 (constants.%require_complete.c9d)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc18_10.2 [symbolic = %pattern_type (constants.%pattern_type.838)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc17_6.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
 // CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.as_type.loc18_10.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet)]
-// CHECK:STDOUT:   %.loc18_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc18_3.3 (constants.%.868)]
-// CHECK:STDOUT:   %impl.elem0.loc18_3.2: @F.%.loc18_3.3 (%.868) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc18_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc18_3.3 (constants.%.017)]
+// CHECK:STDOUT:   %impl.elem0.loc18_3.2: @F.%.loc18_3.3 (%.017) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc18_3.2: <specific function> = specific_impl_function %impl.elem0.loc18_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc18_3.2 (constants.%specific_impl_fn)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc18_10.2 [symbolic = %ptr (constants.%ptr.5e1)]
-// CHECK:STDOUT:   %require_complete.loc18_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc18_3 (constants.%require_complete.149)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc18_10.2 [symbolic = %ptr (constants.%ptr.20a)]
+// CHECK:STDOUT:   %require_complete.loc18_3: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc18_3 (constants.%require_complete.359)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     name_binding_decl {
-// CHECK:STDOUT:       %x.patt: @F.%pattern_type (%pattern_type.dad) = binding_pattern x [concrete]
-// CHECK:STDOUT:       %x.var_patt: @F.%pattern_type (%pattern_type.dad) = var_pattern %x.patt [concrete]
+// CHECK:STDOUT:       %x.patt: @F.%pattern_type (%pattern_type.838) = binding_pattern x [concrete]
+// CHECK:STDOUT:       %x.var_patt: @F.%pattern_type (%pattern_type.838) = var_pattern %x.patt [concrete]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %x.var: ref @F.%T.as_type.loc18_10.2 (%T.as_type) = var %x.var_patt
 // CHECK:STDOUT:     %.loc18_10.1: type = splice_block %.loc18_10.2 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref: %Empty.type = name_ref T, %T.loc17_6.2 [symbolic = %T.loc17_6.1 (constants.%T.193)]
+// CHECK:STDOUT:       %T.ref: %Empty.type = name_ref T, %T.loc17_6.2 [symbolic = %T.loc17_6.1 (constants.%T.b05)]
 // CHECK:STDOUT:       %T.as_type.loc18_10.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc18_10.2: type = converted %T.ref, %T.as_type.loc18_10.1 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %x: ref @F.%T.as_type.loc18_10.2 (%T.as_type) = bind_name x, %x.var
-// CHECK:STDOUT:     %T.as_type.loc18_3: type = facet_access_type constants.%T.193 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc18_3.1: type = converted constants.%T.193, %T.as_type.loc18_3 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc18_3.1: @F.%.loc18_3.3 (%.868) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %T.as_type.loc18_3: type = facet_access_type constants.%T.b05 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc18_3.1: type = converted constants.%T.b05, %T.as_type.loc18_3 [symbolic = %T.as_type.loc18_10.2 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem0.loc18_3.1: @F.%.loc18_3.3 (%.017) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc18_3.1: <bound method> = bound_method %x.var, %impl.elem0.loc18_3.1
 // CHECK:STDOUT:     %specific_impl_fn.loc18_3.1: <specific function> = specific_impl_function %impl.elem0.loc18_3.1, @Destroy.Op(constants.%Destroy.facet) [symbolic = %specific_impl_fn.loc18_3.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc18_3.2: <bound method> = bound_method %x.var, %specific_impl_fn.loc18_3.1
-// CHECK:STDOUT:     %addr: @F.%ptr (%ptr.5e1) = addr_of %x.var
+// CHECK:STDOUT:     %addr: @F.%ptr (%ptr.20a) = addr_of %x.var
 // CHECK:STDOUT:     %.loc18_3.2: init %empty_tuple.type = call %bound_method.loc18_3.2(%addr)
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @F(constants.%T.193) {
-// CHECK:STDOUT:   %T.loc17_6.1 => constants.%T.193
+// CHECK:STDOUT: specific @F(constants.%T.b05) {
+// CHECK:STDOUT:   %T.loc17_6.1 => constants.%T.b05
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/assoc_const_in_generic.carbon b/toolchain/check/testdata/interface/assoc_const_in_generic.carbon
index 5575d9e7be08..b6ed03c9edc3 100644
--- a/toolchain/check/testdata/interface/assoc_const_in_generic.carbon
+++ b/toolchain/check/testdata/interface/assoc_const_in_generic.carbon
@@ -36,8 +36,8 @@ fn H() {
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.209: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.0d8: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %U [symbolic]
 // CHECK:STDOUT:   %I.F.type.2ae: type = fn_type @I.F, @I(%T) [symbolic]
@@ -46,19 +46,19 @@ fn H() {
 // CHECK:STDOUT:   %assoc0.8f0: %I.assoc_type.1e5 = assoc_entity element0, @I.%I.F.decl [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.cfe: <witness> = require_complete_type %I.type.325 [symbolic]
+// CHECK:STDOUT:   %require_complete.3e6: <witness> = require_complete_type %I.type.328 [symbolic]
 // CHECK:STDOUT:   %require_complete.f84: <witness> = require_complete_type %I.assoc_type.1e5 [symbolic]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [concrete]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %G.specific_fn: <specific function> = specific_function %G, @G(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %I.type.885: type = facet_type <@I, @I(%empty_struct_type)> [concrete]
-// CHECK:STDOUT:   %Self.4e2: %I.type.885 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.cba: type = facet_type <@I, @I(%empty_struct_type)> [concrete]
+// CHECK:STDOUT:   %Self.3aa: %I.type.cba = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %I.F.type.684: type = fn_type @I.F, @I(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %I.F.a8d: %I.F.type.684 = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type.22c: type = assoc_entity_type @I, @I(%empty_struct_type) [concrete]
 // CHECK:STDOUT:   %assoc0.722: %I.assoc_type.22c = assoc_entity element0, @I.%I.F.decl [concrete]
-// CHECK:STDOUT:   %complete_type.788: <witness> = complete_type_witness %I.type.885 [concrete]
+// CHECK:STDOUT:   %complete_type.03e: <witness> = complete_type_witness %I.type.cba [concrete]
 // CHECK:STDOUT:   %complete_type.d28: <witness> = complete_type_witness %I.assoc_type.22c [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -87,15 +87,15 @@ fn H() {
 // CHECK:STDOUT:   %T.loc15_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc15_13.1)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc15_13.1)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d8)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F, @I(%T.loc15_13.1) [symbolic = %I.F.type (constants.%I.F.type.2ae)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2ae) = struct_value () [symbolic = %I.F (constants.%I.F.bb2)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc15_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
 // CHECK:STDOUT:   %assoc0.loc16_22.2: @I.%I.assoc_type (%I.assoc_type.1e5) = assoc_entity element0, %I.F.decl [symbolic = %assoc0.loc16_22.2 (constants.%assoc0.8f0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.209)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0d8)]
 // CHECK:STDOUT:     %I.F.decl: @I.%I.F.type (%I.F.type.2ae) = fn_decl @I.F [symbolic = @I.%I.F (constants.%I.F.bb2)] {
 // CHECK:STDOUT:       %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 2 [concrete]
 // CHECK:STDOUT:       %return.patt: @I.F.%pattern_type (%pattern_type.20f) = return_slot_pattern [concrete]
@@ -116,7 +116,7 @@ fn H() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F(@I.%T.loc15_13.2: type, @I.%Self.1: @I.%I.type (%I.type.325), %U.loc16_8.2: type) {
+// CHECK:STDOUT: generic fn @I.F(@I.%T.loc15_13.2: type, @I.%Self.1: @I.%I.type (%I.type.328), %U.loc16_8.2: type) {
 // CHECK:STDOUT:   %U.loc16_8.1: type = bind_symbolic_name U, 2 [symbolic = %U.loc16_8.1 (constants.%U)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %U.loc16_8.1 [symbolic = %pattern_type (constants.%pattern_type.20f)]
 // CHECK:STDOUT:
@@ -127,8 +127,8 @@ fn H() {
 // CHECK:STDOUT:   %T.loc19_6.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc19_6.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type.loc23_6.2: type = facet_type <@I, @I(%T.loc19_6.1)> [symbolic = %I.type.loc23_6.2 (constants.%I.type.325)]
-// CHECK:STDOUT:   %require_complete.loc23_7.1: <witness> = require_complete_type %I.type.loc23_6.2 [symbolic = %require_complete.loc23_7.1 (constants.%require_complete.cfe)]
+// CHECK:STDOUT:   %I.type.loc23_6.2: type = facet_type <@I, @I(%T.loc19_6.1)> [symbolic = %I.type.loc23_6.2 (constants.%I.type.328)]
+// CHECK:STDOUT:   %require_complete.loc23_7.1: <witness> = require_complete_type %I.type.loc23_6.2 [symbolic = %require_complete.loc23_7.1 (constants.%require_complete.3e6)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc19_6.1) [symbolic = %I.assoc_type (constants.%I.assoc_type.1e5)]
 // CHECK:STDOUT:   %assoc0: @G.%I.assoc_type (%I.assoc_type.1e5) = assoc_entity element0, @I.%I.F.decl [symbolic = %assoc0 (constants.%assoc0.8f0)]
 // CHECK:STDOUT:   %require_complete.loc23_7.2: <witness> = require_complete_type %I.assoc_type [symbolic = %require_complete.loc23_7.2 (constants.%require_complete.f84)]
@@ -137,7 +137,7 @@ fn H() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %I.ref: %I.type.dac = name_ref I, file.%I.decl [concrete = constants.%I.generic]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %T.loc19_6.2 [symbolic = %T.loc19_6.1 (constants.%T)]
-// CHECK:STDOUT:     %I.type.loc23_6.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc23_6.2 (constants.%I.type.325)]
+// CHECK:STDOUT:     %I.type.loc23_6.1: type = facet_type <@I, @I(constants.%T)> [symbolic = %I.type.loc23_6.2 (constants.%I.type.328)]
 // CHECK:STDOUT:     %.loc23: @G.%I.assoc_type (%I.assoc_type.1e5) = specific_constant @I.%assoc0.loc16_22.1, @I(constants.%T) [symbolic = %assoc0 (constants.%assoc0.8f0)]
 // CHECK:STDOUT:     %F.ref: @G.%I.assoc_type (%I.assoc_type.1e5) = name_ref F, %.loc23 [symbolic = %assoc0 (constants.%assoc0.8f0)]
 // CHECK:STDOUT:     return
@@ -158,15 +158,15 @@ fn H() {
 // CHECK:STDOUT:   %T.loc15_13.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
-// CHECK:STDOUT:   %Self.2 => constants.%Self.209
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
+// CHECK:STDOUT:   %Self.2 => constants.%Self.0d8
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.2ae
 // CHECK:STDOUT:   %I.F => constants.%I.F.bb2
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.1e5
 // CHECK:STDOUT:   %assoc0.loc16_22.2 => constants.%assoc0.8f0
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.209, constants.%U) {
+// CHECK:STDOUT: specific @I.F(constants.%T, constants.%Self.0d8, constants.%U) {
 // CHECK:STDOUT:   %U.loc16_8.1 => constants.%U
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.20f
 // CHECK:STDOUT: }
@@ -179,8 +179,8 @@ fn H() {
 // CHECK:STDOUT:   %T.loc19_6.1 => constants.%empty_struct_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type.loc23_6.2 => constants.%I.type.885
-// CHECK:STDOUT:   %require_complete.loc23_7.1 => constants.%complete_type.788
+// CHECK:STDOUT:   %I.type.loc23_6.2 => constants.%I.type.cba
+// CHECK:STDOUT:   %require_complete.loc23_7.1 => constants.%complete_type.03e
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.22c
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.722
 // CHECK:STDOUT:   %require_complete.loc23_7.2 => constants.%complete_type.d28
@@ -190,8 +190,8 @@ fn H() {
 // CHECK:STDOUT:   %T.loc15_13.1 => constants.%empty_struct_type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.885
-// CHECK:STDOUT:   %Self.2 => constants.%Self.4e2
+// CHECK:STDOUT:   %I.type => constants.%I.type.cba
+// CHECK:STDOUT:   %Self.2 => constants.%Self.3aa
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.684
 // CHECK:STDOUT:   %I.F => constants.%I.F.a8d
 // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type.22c
diff --git a/toolchain/check/testdata/interface/basic.carbon b/toolchain/check/testdata/interface/basic.carbon
index 6279b988e961..6223ac246749 100644
--- a/toolchain/check/testdata/interface/basic.carbon
+++ b/toolchain/check/testdata/interface/basic.carbon
@@ -25,9 +25,9 @@ interface ForwardDeclared {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
-// CHECK:STDOUT:   %Self.193: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b05: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [concrete]
-// CHECK:STDOUT:   %Self.efa: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9cc: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %ForwardDeclared.F.type: type = fn_type @ForwardDeclared.F [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.F: %ForwardDeclared.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.assoc_type: type = assoc_entity_type @ForwardDeclared [concrete]
@@ -45,7 +45,7 @@ interface ForwardDeclared {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Empty {
-// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.193]
+// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b05]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -53,7 +53,7 @@ interface ForwardDeclared {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @ForwardDeclared {
-// CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.efa]
+// CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9cc]
 // CHECK:STDOUT:   %ForwardDeclared.F.decl: %ForwardDeclared.F.type = fn_decl @ForwardDeclared.F [concrete = constants.%ForwardDeclared.F] {} {}
 // CHECK:STDOUT:   %assoc0: %ForwardDeclared.assoc_type = assoc_entity element0, %ForwardDeclared.F.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -67,5 +67,5 @@ interface ForwardDeclared {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ForwardDeclared.F(constants.%Self.efa) {}
+// CHECK:STDOUT: specific @ForwardDeclared.F(constants.%Self.9cc) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/compound_member_access.carbon b/toolchain/check/testdata/interface/compound_member_access.carbon
index ff5755604633..e1aa336d0a5d 100644
--- a/toolchain/check/testdata/interface/compound_member_access.carbon
+++ b/toolchain/check/testdata/interface/compound_member_access.carbon
@@ -200,22 +200,22 @@ fn Works() {
 // CHECK:STDOUT:   %assoc0: %J.assoc_type = assoc_entity element0, @J.%U [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %J.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.28e: type = pattern_type %J.type [concrete]
+// CHECK:STDOUT:   %pattern_type.fdf: type = pattern_type %J.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.1: <witness> = lookup_impl_witness %T, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.1: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.64628e.1) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11fef0.1: type = impl_witness_access %J.lookup_impl_witness.64628e.1, element0 [symbolic]
-// CHECK:STDOUT:   %S: %impl.elem0.11fef0.1 = bind_symbolic_name S, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b984e7.1: type = pattern_type %impl.elem0.11fef0.1 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.1: <witness> = lookup_impl_witness %T, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.1: %J.type = facet_value %T.as_type, (%J.lookup_impl_witness.0df834.1) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2921.1: type = impl_witness_access %J.lookup_impl_witness.0df834.1, element0 [symbolic]
+// CHECK:STDOUT:   %S: %impl.elem0.3a2921.1 = bind_symbolic_name S, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a83b.1: type = pattern_type %impl.elem0.3a2921.1 [symbolic]
 // CHECK:STDOUT:   %Simple1.type: type = fn_type @Simple1 [concrete]
 // CHECK:STDOUT:   %Simple1: %Simple1.type = struct_value () [concrete]
 // CHECK:STDOUT:   %V: %J.type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %J.lookup_impl_witness.64628e.2: <witness> = lookup_impl_witness %V, @J [symbolic]
-// CHECK:STDOUT:   %J.facet.5210a7.2: %J.type = facet_value %V.as_type, (%J.lookup_impl_witness.64628e.2) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.11fef0.2: type = impl_witness_access %J.lookup_impl_witness.64628e.2, element0 [symbolic]
-// CHECK:STDOUT:   %W: %impl.elem0.11fef0.2 = bind_symbolic_name W, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.b984e7.2: type = pattern_type %impl.elem0.11fef0.2 [symbolic]
+// CHECK:STDOUT:   %J.lookup_impl_witness.0df834.2: <witness> = lookup_impl_witness %V, @J [symbolic]
+// CHECK:STDOUT:   %J.facet.276c17.2: %J.type = facet_value %V.as_type, (%J.lookup_impl_witness.0df834.2) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.3a2921.2: type = impl_witness_access %J.lookup_impl_witness.0df834.2, element0 [symbolic]
+// CHECK:STDOUT:   %W: %impl.elem0.3a2921.2 = bind_symbolic_name W, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b7a83b.2: type = pattern_type %impl.elem0.3a2921.2 [symbolic]
 // CHECK:STDOUT:   %Compound1.type: type = fn_type @Compound1 [concrete]
 // CHECK:STDOUT:   %Compound1: %Compound1.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -237,41 +237,41 @@ fn Works() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
 // CHECK:STDOUT:   %Simple1.decl: %Simple1.type = fn_decl @Simple1 [concrete = constants.%Simple1] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.28e = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %S.patt: @Simple1.%pattern_type (%pattern_type.b984e7.1) = symbolic_binding_pattern S, 1 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.fdf = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %S.patt: @Simple1.%pattern_type (%pattern_type.b7a83b.1) = symbolic_binding_pattern S, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc8_16: type = splice_block %J.ref [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %T.loc8_12.2: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_12.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc8_24.1: type = splice_block %impl.elem0.loc8_24.2 [symbolic = %impl.elem0.loc8_24.1 (constants.%impl.elem0.11fef0.1)] {
+// CHECK:STDOUT:     %.loc8_24.1: type = splice_block %impl.elem0.loc8_24.2 [symbolic = %impl.elem0.loc8_24.1 (constants.%impl.elem0.3a2921.1)] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %T.ref: %J.type = name_ref T, %T.loc8_12.2 [symbolic = %T.loc8_12.1 (constants.%T)]
 // CHECK:STDOUT:       %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %T.as_type.loc8_24.2: type = facet_access_type %T.ref [symbolic = %T.as_type.loc8_24.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc8_24.2: type = converted %T.ref, %T.as_type.loc8_24.2 [symbolic = %T.as_type.loc8_24.1 (constants.%T.as_type)]
-// CHECK:STDOUT:       %impl.elem0.loc8_24.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.1, element0 [symbolic = %impl.elem0.loc8_24.1 (constants.%impl.elem0.11fef0.1)]
+// CHECK:STDOUT:       %impl.elem0.loc8_24.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.1, element0 [symbolic = %impl.elem0.loc8_24.1 (constants.%impl.elem0.3a2921.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %S.loc8_19.2: @Simple1.%impl.elem0.loc8_24.1 (%impl.elem0.11fef0.1) = bind_symbolic_name S, 1 [symbolic = %S.loc8_19.1 (constants.%S)]
+// CHECK:STDOUT:     %S.loc8_19.2: @Simple1.%impl.elem0.loc8_24.1 (%impl.elem0.3a2921.1) = bind_symbolic_name S, 1 [symbolic = %S.loc8_19.1 (constants.%S)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Compound1.decl: %Compound1.type = fn_decl @Compound1 [concrete = constants.%Compound1] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.28e = symbolic_binding_pattern V, 0 [concrete]
-// CHECK:STDOUT:     %W.patt: @Compound1.%pattern_type (%pattern_type.b984e7.2) = symbolic_binding_pattern W, 1 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.fdf = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %W.patt: @Compound1.%pattern_type (%pattern_type.b7a83b.2) = symbolic_binding_pattern W, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc11_18: type = splice_block %J.ref.loc11_18 [concrete = constants.%J.type] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %J.ref.loc11_18: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %V.loc11_14.2: %J.type = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.1 (constants.%V)]
-// CHECK:STDOUT:     %.loc11_26: type = splice_block %impl.elem0.loc11_26.2 [symbolic = %impl.elem0.loc11_26.1 (constants.%impl.elem0.11fef0.2)] {
+// CHECK:STDOUT:     %.loc11_26: type = splice_block %impl.elem0.loc11_26.2 [symbolic = %impl.elem0.loc11_26.1 (constants.%impl.elem0.3a2921.2)] {
 // CHECK:STDOUT:       %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %V.ref: %J.type = name_ref V, %V.loc11_14.2 [symbolic = %V.loc11_14.1 (constants.%V)]
 // CHECK:STDOUT:       %J.ref.loc11_28: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:       %U.ref: %J.assoc_type = name_ref U, @U.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:       %impl.elem0.loc11_26.2: type = impl_witness_access constants.%J.lookup_impl_witness.64628e.2, element0 [symbolic = %impl.elem0.loc11_26.1 (constants.%impl.elem0.11fef0.2)]
+// CHECK:STDOUT:       %impl.elem0.loc11_26.2: type = impl_witness_access constants.%J.lookup_impl_witness.0df834.2, element0 [symbolic = %impl.elem0.loc11_26.1 (constants.%impl.elem0.3a2921.2)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %W.loc11_21.2: @Compound1.%impl.elem0.loc11_26.1 (%impl.elem0.11fef0.2) = bind_symbolic_name W, 1 [symbolic = %W.loc11_21.1 (constants.%W)]
+// CHECK:STDOUT:     %W.loc11_21.2: @Compound1.%impl.elem0.loc11_26.1 (%impl.elem0.3a2921.2) = bind_symbolic_name W, 1 [symbolic = %W.loc11_21.1 (constants.%W)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -291,13 +291,13 @@ fn Works() {
 // CHECK:STDOUT:   assoc_const U:! type;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Simple1(%T.loc8_12.2: %J.type, %S.loc8_19.2: @Simple1.%impl.elem0.loc8_24.1 (%impl.elem0.11fef0.1)) {
+// CHECK:STDOUT: generic fn @Simple1(%T.loc8_12.2: %J.type, %S.loc8_19.2: @Simple1.%impl.elem0.loc8_24.1 (%impl.elem0.3a2921.1)) {
 // CHECK:STDOUT:   %T.loc8_12.1: %J.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_12.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc8_24.1: type = facet_access_type %T.loc8_12.1 [symbolic = %T.as_type.loc8_24.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_12.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.1)]
-// CHECK:STDOUT:   %impl.elem0.loc8_24.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc8_24.1 (constants.%impl.elem0.11fef0.1)]
-// CHECK:STDOUT:   %S.loc8_19.1: @Simple1.%impl.elem0.loc8_24.1 (%impl.elem0.11fef0.1) = bind_symbolic_name S, 1 [symbolic = %S.loc8_19.1 (constants.%S)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc8_24.1 [symbolic = %pattern_type (constants.%pattern_type.b984e7.1)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_12.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.1)]
+// CHECK:STDOUT:   %impl.elem0.loc8_24.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc8_24.1 (constants.%impl.elem0.3a2921.1)]
+// CHECK:STDOUT:   %S.loc8_19.1: @Simple1.%impl.elem0.loc8_24.1 (%impl.elem0.3a2921.1) = bind_symbolic_name S, 1 [symbolic = %S.loc8_19.1 (constants.%S)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc8_24.1 [symbolic = %pattern_type (constants.%pattern_type.b7a83b.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -307,12 +307,12 @@ fn Works() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Compound1(%V.loc11_14.2: %J.type, %W.loc11_21.2: @Compound1.%impl.elem0.loc11_26.1 (%impl.elem0.11fef0.2)) {
+// CHECK:STDOUT: generic fn @Compound1(%V.loc11_14.2: %J.type, %W.loc11_21.2: @Compound1.%impl.elem0.loc11_26.1 (%impl.elem0.3a2921.2)) {
 // CHECK:STDOUT:   %V.loc11_14.1: %J.type = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.1 (constants.%V)]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc11_14.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.64628e.2)]
-// CHECK:STDOUT:   %impl.elem0.loc11_26.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_26.1 (constants.%impl.elem0.11fef0.2)]
-// CHECK:STDOUT:   %W.loc11_21.1: @Compound1.%impl.elem0.loc11_26.1 (%impl.elem0.11fef0.2) = bind_symbolic_name W, 1 [symbolic = %W.loc11_21.1 (constants.%W)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc11_26.1 [symbolic = %pattern_type (constants.%pattern_type.b984e7.2)]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc11_14.1, @J [symbolic = %J.lookup_impl_witness (constants.%J.lookup_impl_witness.0df834.2)]
+// CHECK:STDOUT:   %impl.elem0.loc11_26.1: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_26.1 (constants.%impl.elem0.3a2921.2)]
+// CHECK:STDOUT:   %W.loc11_21.1: @Compound1.%impl.elem0.loc11_26.1 (%impl.elem0.3a2921.2) = bind_symbolic_name W, 1 [symbolic = %W.loc11_21.1 (constants.%W)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc11_26.1 [symbolic = %pattern_type (constants.%pattern_type.b7a83b.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -324,25 +324,25 @@ fn Works() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @U(constants.%Self) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.1) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Simple1(constants.%T, constants.%S) {
 // CHECK:STDOUT:   %T.loc8_12.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_24.1 => constants.%T.as_type
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.1
-// CHECK:STDOUT:   %impl.elem0.loc8_24.1 => constants.%impl.elem0.11fef0.1
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.1
+// CHECK:STDOUT:   %impl.elem0.loc8_24.1 => constants.%impl.elem0.3a2921.1
 // CHECK:STDOUT:   %S.loc8_19.1 => constants.%S
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b984e7.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a83b.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @U(constants.%J.facet.5210a7.2) {}
+// CHECK:STDOUT: specific @U(constants.%J.facet.276c17.2) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Compound1(constants.%V, constants.%W) {
 // CHECK:STDOUT:   %V.loc11_14.1 => constants.%V
-// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.64628e.2
-// CHECK:STDOUT:   %impl.elem0.loc11_26.1 => constants.%impl.elem0.11fef0.2
+// CHECK:STDOUT:   %J.lookup_impl_witness => constants.%J.lookup_impl_witness.0df834.2
+// CHECK:STDOUT:   %impl.elem0.loc11_26.1 => constants.%impl.elem0.3a2921.2
 // CHECK:STDOUT:   %W.loc11_21.1 => constants.%W
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b984e7.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b7a83b.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- non_instance.carbon
@@ -361,20 +361,20 @@ fn Works() {
 // CHECK:STDOUT:   %Simple2.type: type = fn_type @Simple2 [concrete]
 // CHECK:STDOUT:   %Simple2: %Simple2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %K1.lookup_impl_witness.d8ae08.1: <witness> = lookup_impl_witness %T, @K1 [symbolic]
-// CHECK:STDOUT:   %K1.facet.9e06af.1: %K1.type = facet_value %T.as_type, (%K1.lookup_impl_witness.d8ae08.1) [symbolic]
-// CHECK:STDOUT:   %.484362.1: type = fn_type_with_self_type %K1.Q1.type, %K1.facet.9e06af.1 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.9661c0.1: %.484362.1 = impl_witness_access %K1.lookup_impl_witness.d8ae08.1, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.54474d.1: <specific function> = specific_impl_function %impl.elem0.9661c0.1, @K1.Q1(%K1.facet.9e06af.1) [symbolic]
+// CHECK:STDOUT:   %K1.lookup_impl_witness.f3b0e3.1: <witness> = lookup_impl_witness %T, @K1 [symbolic]
+// CHECK:STDOUT:   %K1.facet.e39cd4.1: %K1.type = facet_value %T.as_type, (%K1.lookup_impl_witness.f3b0e3.1) [symbolic]
+// CHECK:STDOUT:   %.b4827e.1: type = fn_type_with_self_type %K1.Q1.type, %K1.facet.e39cd4.1 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.964929.1: %.b4827e.1 = impl_witness_access %K1.lookup_impl_witness.f3b0e3.1, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.c6f659.1: <specific function> = specific_impl_function %impl.elem0.964929.1, @K1.Q1(%K1.facet.e39cd4.1) [symbolic]
 // CHECK:STDOUT:   %V: %K1.type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %Compound2.type: type = fn_type @Compound2 [concrete]
 // CHECK:STDOUT:   %Compound2: %Compound2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %K1.lookup_impl_witness.d8ae08.2: <witness> = lookup_impl_witness %V, @K1 [symbolic]
-// CHECK:STDOUT:   %K1.facet.9e06af.2: %K1.type = facet_value %V.as_type, (%K1.lookup_impl_witness.d8ae08.2) [symbolic]
-// CHECK:STDOUT:   %.484362.2: type = fn_type_with_self_type %K1.Q1.type, %K1.facet.9e06af.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.9661c0.2: %.484362.2 = impl_witness_access %K1.lookup_impl_witness.d8ae08.2, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.54474d.2: <specific function> = specific_impl_function %impl.elem0.9661c0.2, @K1.Q1(%K1.facet.9e06af.2) [symbolic]
+// CHECK:STDOUT:   %K1.lookup_impl_witness.f3b0e3.2: <witness> = lookup_impl_witness %V, @K1 [symbolic]
+// CHECK:STDOUT:   %K1.facet.e39cd4.2: %K1.type = facet_value %V.as_type, (%K1.lookup_impl_witness.f3b0e3.2) [symbolic]
+// CHECK:STDOUT:   %.b4827e.2: type = fn_type_with_self_type %K1.Q1.type, %K1.facet.e39cd4.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.964929.2: %.b4827e.2 = impl_witness_access %K1.lookup_impl_witness.f3b0e3.2, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.c6f659.2: <specific function> = specific_impl_function %impl.elem0.964929.2, @K1.Q1(%K1.facet.e39cd4.2) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -433,11 +433,11 @@ fn Works() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T.as_type.loc9_4.2: type = facet_access_type %T.loc8_12.1 [symbolic = %T.as_type.loc9_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:   %K1.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_12.1, @K1 [symbolic = %K1.lookup_impl_witness (constants.%K1.lookup_impl_witness.d8ae08.1)]
-// CHECK:STDOUT:   %K1.facet: %K1.type = facet_value %T.as_type.loc9_4.2, (%K1.lookup_impl_witness) [symbolic = %K1.facet (constants.%K1.facet.9e06af.1)]
-// CHECK:STDOUT:   %.loc9_4.2: type = fn_type_with_self_type constants.%K1.Q1.type, %K1.facet [symbolic = %.loc9_4.2 (constants.%.484362.1)]
-// CHECK:STDOUT:   %impl.elem0.loc9_4.2: @Simple2.%.loc9_4.2 (%.484362.1) = impl_witness_access %K1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0.9661c0.1)]
-// CHECK:STDOUT:   %specific_impl_fn.loc9_4.2: <specific function> = specific_impl_function %impl.elem0.loc9_4.2, @K1.Q1(%K1.facet) [symbolic = %specific_impl_fn.loc9_4.2 (constants.%specific_impl_fn.54474d.1)]
+// CHECK:STDOUT:   %K1.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_12.1, @K1 [symbolic = %K1.lookup_impl_witness (constants.%K1.lookup_impl_witness.f3b0e3.1)]
+// CHECK:STDOUT:   %K1.facet: %K1.type = facet_value %T.as_type.loc9_4.2, (%K1.lookup_impl_witness) [symbolic = %K1.facet (constants.%K1.facet.e39cd4.1)]
+// CHECK:STDOUT:   %.loc9_4.2: type = fn_type_with_self_type constants.%K1.Q1.type, %K1.facet [symbolic = %.loc9_4.2 (constants.%.b4827e.1)]
+// CHECK:STDOUT:   %impl.elem0.loc9_4.2: @Simple2.%.loc9_4.2 (%.b4827e.1) = impl_witness_access %K1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0.964929.1)]
+// CHECK:STDOUT:   %specific_impl_fn.loc9_4.2: <specific function> = specific_impl_function %impl.elem0.loc9_4.2, @K1.Q1(%K1.facet) [symbolic = %specific_impl_fn.loc9_4.2 (constants.%specific_impl_fn.c6f659.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
@@ -445,8 +445,8 @@ fn Works() {
 // CHECK:STDOUT:     %Q1.ref: %K1.assoc_type = name_ref Q1, @K1.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc9_4.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc9_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc9_4.1: type = converted %T.ref, %T.as_type.loc9_4.1 [symbolic = %T.as_type.loc9_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc9_4.1: @Simple2.%.loc9_4.2 (%.484362.1) = impl_witness_access constants.%K1.lookup_impl_witness.d8ae08.1, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0.9661c0.1)]
-// CHECK:STDOUT:     %specific_impl_fn.loc9_4.1: <specific function> = specific_impl_function %impl.elem0.loc9_4.1, @K1.Q1(constants.%K1.facet.9e06af.1) [symbolic = %specific_impl_fn.loc9_4.2 (constants.%specific_impl_fn.54474d.1)]
+// CHECK:STDOUT:     %impl.elem0.loc9_4.1: @Simple2.%.loc9_4.2 (%.b4827e.1) = impl_witness_access constants.%K1.lookup_impl_witness.f3b0e3.1, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0.964929.1)]
+// CHECK:STDOUT:     %specific_impl_fn.loc9_4.1: <specific function> = specific_impl_function %impl.elem0.loc9_4.1, @K1.Q1(constants.%K1.facet.e39cd4.1) [symbolic = %specific_impl_fn.loc9_4.2 (constants.%specific_impl_fn.c6f659.1)]
 // CHECK:STDOUT:     %.loc9_8: init %empty_tuple.type = call %specific_impl_fn.loc9_4.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -456,20 +456,20 @@ fn Works() {
 // CHECK:STDOUT:   %V.loc13_14.1: %K1.type = bind_symbolic_name V, 0 [symbolic = %V.loc13_14.1 (constants.%V)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %K1.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc13_14.1, @K1 [symbolic = %K1.lookup_impl_witness (constants.%K1.lookup_impl_witness.d8ae08.2)]
+// CHECK:STDOUT:   %K1.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc13_14.1, @K1 [symbolic = %K1.lookup_impl_witness (constants.%K1.lookup_impl_witness.f3b0e3.2)]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V.loc13_14.1 [symbolic = %V.as_type (constants.%V.as_type)]
-// CHECK:STDOUT:   %K1.facet: %K1.type = facet_value %V.as_type, (%K1.lookup_impl_witness) [symbolic = %K1.facet (constants.%K1.facet.9e06af.2)]
-// CHECK:STDOUT:   %.loc14_4: type = fn_type_with_self_type constants.%K1.Q1.type, %K1.facet [symbolic = %.loc14_4 (constants.%.484362.2)]
-// CHECK:STDOUT:   %impl.elem0.loc14_4.2: @Compound2.%.loc14_4 (%.484362.2) = impl_witness_access %K1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_4.2 (constants.%impl.elem0.9661c0.2)]
-// CHECK:STDOUT:   %specific_impl_fn.loc14_4.2: <specific function> = specific_impl_function %impl.elem0.loc14_4.2, @K1.Q1(%K1.facet) [symbolic = %specific_impl_fn.loc14_4.2 (constants.%specific_impl_fn.54474d.2)]
+// CHECK:STDOUT:   %K1.facet: %K1.type = facet_value %V.as_type, (%K1.lookup_impl_witness) [symbolic = %K1.facet (constants.%K1.facet.e39cd4.2)]
+// CHECK:STDOUT:   %.loc14_4: type = fn_type_with_self_type constants.%K1.Q1.type, %K1.facet [symbolic = %.loc14_4 (constants.%.b4827e.2)]
+// CHECK:STDOUT:   %impl.elem0.loc14_4.2: @Compound2.%.loc14_4 (%.b4827e.2) = impl_witness_access %K1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc14_4.2 (constants.%impl.elem0.964929.2)]
+// CHECK:STDOUT:   %specific_impl_fn.loc14_4.2: <specific function> = specific_impl_function %impl.elem0.loc14_4.2, @K1.Q1(%K1.facet) [symbolic = %specific_impl_fn.loc14_4.2 (constants.%specific_impl_fn.c6f659.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %V.ref: %K1.type = name_ref V, %V.loc13_14.2 [symbolic = %V.loc13_14.1 (constants.%V)]
 // CHECK:STDOUT:     %K1.ref.loc14: type = name_ref K1, file.%K1.decl [concrete = constants.%K1.type]
 // CHECK:STDOUT:     %Q1.ref: %K1.assoc_type = name_ref Q1, @K1.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:     %impl.elem0.loc14_4.1: @Compound2.%.loc14_4 (%.484362.2) = impl_witness_access constants.%K1.lookup_impl_witness.d8ae08.2, element0 [symbolic = %impl.elem0.loc14_4.2 (constants.%impl.elem0.9661c0.2)]
-// CHECK:STDOUT:     %specific_impl_fn.loc14_4.1: <specific function> = specific_impl_function %impl.elem0.loc14_4.1, @K1.Q1(constants.%K1.facet.9e06af.2) [symbolic = %specific_impl_fn.loc14_4.2 (constants.%specific_impl_fn.54474d.2)]
+// CHECK:STDOUT:     %impl.elem0.loc14_4.1: @Compound2.%.loc14_4 (%.b4827e.2) = impl_witness_access constants.%K1.lookup_impl_witness.f3b0e3.2, element0 [symbolic = %impl.elem0.loc14_4.2 (constants.%impl.elem0.964929.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc14_4.1: <specific function> = specific_impl_function %impl.elem0.loc14_4.1, @K1.Q1(constants.%K1.facet.e39cd4.2) [symbolic = %specific_impl_fn.loc14_4.2 (constants.%specific_impl_fn.c6f659.2)]
 // CHECK:STDOUT:     %.loc14_13: init %empty_tuple.type = call %specific_impl_fn.loc14_4.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -481,19 +481,19 @@ fn Works() {
 // CHECK:STDOUT:   %T.loc8_12.1 => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @K1.Q1(constants.%K1.facet.9e06af.1) {}
+// CHECK:STDOUT: specific @K1.Q1(constants.%K1.facet.e39cd4.1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Compound2(constants.%V) {
 // CHECK:STDOUT:   %V.loc13_14.1 => constants.%V
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @K1.Q1(constants.%K1.facet.9e06af.2) {}
+// CHECK:STDOUT: specific @K1.Q1(constants.%K1.facet.e39cd4.2) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_caller_instance_interface_not.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %K2.type: type = facet_type <@K2> [concrete]
-// CHECK:STDOUT:   %Self.0ce: %K2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.593: %K2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %K2.Q2.type: type = fn_type @K2.Q2 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %K2.Q2: %K2.Q2.type = struct_value () [concrete]
@@ -501,23 +501,23 @@ fn Works() {
 // CHECK:STDOUT:   %assoc0.d67: %K2.assoc_type = assoc_entity element0, @K2.%K2.Q2.decl [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %K2.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.fda: type = pattern_type %K2.type [concrete]
+// CHECK:STDOUT:   %pattern_type.738: type = pattern_type %K2.type [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
-// CHECK:STDOUT:   %pattern_type.466ee6.1: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.f43b58.1: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %Simple3.type: type = fn_type @Simple3 [concrete]
 // CHECK:STDOUT:   %Simple3: %Simple3.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.022e81.1: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.893460.1: <witness> = require_complete_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %K2.lookup_impl_witness: <witness> = lookup_impl_witness %T, @K2 [symbolic]
 // CHECK:STDOUT:   %K2.facet: %K2.type = facet_value %T.as_type, (%K2.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.8de: type = fn_type_with_self_type %K2.Q2.type, %K2.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.8de = impl_witness_access %K2.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.641: type = fn_type_with_self_type %K2.Q2.type, %K2.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.641 = impl_witness_access %K2.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @K2.Q2(%K2.facet) [symbolic]
 // CHECK:STDOUT:   %V: %K2.type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %pattern_type.466ee6.2: type = pattern_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.f43b58.2: type = pattern_type %V.as_type [symbolic]
 // CHECK:STDOUT:   %Compound3.type: type = fn_type @Compound3 [concrete]
 // CHECK:STDOUT:   %Compound3: %Compound3.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.022e81.2: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %require_complete.893460.2: <witness> = require_complete_type %V.as_type [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -541,9 +541,9 @@ fn Works() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %K2.decl: type = interface_decl @K2 [concrete = constants.%K2.type] {} {}
 // CHECK:STDOUT:   %Simple3.decl: %Simple3.type = fn_decl @Simple3 [concrete = constants.%Simple3] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.fda = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @Simple3.%pattern_type (%pattern_type.466ee6.1) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @Simple3.%pattern_type (%pattern_type.466ee6.1) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.738 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @Simple3.%pattern_type (%pattern_type.f43b58.1) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @Simple3.%pattern_type (%pattern_type.f43b58.1) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc8_16: type = splice_block %K2.ref [concrete = constants.%K2.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -559,9 +559,9 @@ fn Works() {
 // CHECK:STDOUT:     %x: @Simple3.%T.as_type.loc8_23.1 (%T.as_type) = bind_name x, %x.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Compound3.decl: %Compound3.type = fn_decl @Compound3 [concrete = constants.%Compound3] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.fda = symbolic_binding_pattern V, 0 [concrete]
-// CHECK:STDOUT:     %y.patt: @Compound3.%pattern_type (%pattern_type.466ee6.2) = binding_pattern y [concrete]
-// CHECK:STDOUT:     %y.param_patt: @Compound3.%pattern_type (%pattern_type.466ee6.2) = value_param_pattern %y.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.738 = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %y.patt: @Compound3.%pattern_type (%pattern_type.f43b58.2) = binding_pattern y [concrete]
+// CHECK:STDOUT:     %y.param_patt: @Compound3.%pattern_type (%pattern_type.f43b58.2) = value_param_pattern %y.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc14_18: type = splice_block %K2.ref.loc14 [concrete = constants.%K2.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -579,7 +579,7 @@ fn Works() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @K2 {
-// CHECK:STDOUT:   %Self: %K2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.0ce]
+// CHECK:STDOUT:   %Self: %K2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.593]
 // CHECK:STDOUT:   %K2.Q2.decl: %K2.Q2.type = fn_decl @K2.Q2 [concrete = constants.%K2.Q2] {} {}
 // CHECK:STDOUT:   %assoc0: %K2.assoc_type = assoc_entity element0, %K2.Q2.decl [concrete = constants.%assoc0.d67]
 // CHECK:STDOUT:
@@ -596,14 +596,14 @@ fn Works() {
 // CHECK:STDOUT: generic fn @Simple3(%T.loc8_12.2: %K2.type) {
 // CHECK:STDOUT:   %T.loc8_12.1: %K2.type = bind_symbolic_name T, 0 [symbolic = %T.loc8_12.1 (constants.%T)]
 // CHECK:STDOUT:   %T.as_type.loc8_23.1: type = facet_access_type %T.loc8_12.1 [symbolic = %T.as_type.loc8_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc8_23.1 [symbolic = %pattern_type (constants.%pattern_type.466ee6.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc8_23.1 [symbolic = %pattern_type (constants.%pattern_type.f43b58.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc8_23.1 [symbolic = %require_complete (constants.%require_complete.022e81.1)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T.as_type.loc8_23.1 [symbolic = %require_complete (constants.%require_complete.893460.1)]
 // CHECK:STDOUT:   %K2.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_12.1, @K2 [symbolic = %K2.lookup_impl_witness (constants.%K2.lookup_impl_witness)]
 // CHECK:STDOUT:   %K2.facet: %K2.type = facet_value %T.as_type.loc8_23.1, (%K2.lookup_impl_witness) [symbolic = %K2.facet (constants.%K2.facet)]
-// CHECK:STDOUT:   %.loc9_4.2: type = fn_type_with_self_type constants.%K2.Q2.type, %K2.facet [symbolic = %.loc9_4.2 (constants.%.8de)]
-// CHECK:STDOUT:   %impl.elem0.loc9_4.2: @Simple3.%.loc9_4.2 (%.8de) = impl_witness_access %K2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc9_4.2: type = fn_type_with_self_type constants.%K2.Q2.type, %K2.facet [symbolic = %.loc9_4.2 (constants.%.641)]
+// CHECK:STDOUT:   %impl.elem0.loc9_4.2: @Simple3.%.loc9_4.2 (%.641) = impl_witness_access %K2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc9_4.2: <specific function> = specific_impl_function %impl.elem0.loc9_4.2, @K2.Q2(%K2.facet) [symbolic = %specific_impl_fn.loc9_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @Simple3.%T.as_type.loc8_23.1 (%T.as_type)) {
@@ -612,7 +612,7 @@ fn Works() {
 // CHECK:STDOUT:     %Q2.ref: %K2.assoc_type = name_ref Q2, @K2.%assoc0 [concrete = constants.%assoc0.d67]
 // CHECK:STDOUT:     %T.as_type.loc9: type = facet_access_type constants.%T [symbolic = %T.as_type.loc8_23.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc9_4.1: type = converted constants.%T, %T.as_type.loc9 [symbolic = %T.as_type.loc8_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc9_4.1: @Simple3.%.loc9_4.2 (%.8de) = impl_witness_access constants.%K2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc9_4.1: @Simple3.%.loc9_4.2 (%.641) = impl_witness_access constants.%K2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %specific_impl_fn.loc9_4.1: <specific function> = specific_impl_function %impl.elem0.loc9_4.1, @K2.Q2(constants.%K2.facet) [symbolic = %specific_impl_fn.loc9_4.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %.loc9_8: init %empty_tuple.type = call %specific_impl_fn.loc9_4.1()
 // CHECK:STDOUT:     return
@@ -622,10 +622,10 @@ fn Works() {
 // CHECK:STDOUT: generic fn @Compound3(%V.loc14_14.2: %K2.type) {
 // CHECK:STDOUT:   %V.loc14_14.1: %K2.type = bind_symbolic_name V, 0 [symbolic = %V.loc14_14.1 (constants.%V)]
 // CHECK:STDOUT:   %V.as_type.loc14_25.1: type = facet_access_type %V.loc14_14.1 [symbolic = %V.as_type.loc14_25.1 (constants.%V.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc14_25.1 [symbolic = %pattern_type (constants.%pattern_type.466ee6.2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc14_25.1 [symbolic = %pattern_type (constants.%pattern_type.f43b58.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %V.as_type.loc14_25.1 [symbolic = %require_complete (constants.%require_complete.022e81.2)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %V.as_type.loc14_25.1 [symbolic = %require_complete (constants.%require_complete.893460.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%y.param: @Compound3.%V.as_type.loc14_25.1 (%V.as_type)) {
 // CHECK:STDOUT:   !entry:
@@ -637,12 +637,12 @@ fn Works() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @K2.Q2(constants.%Self.0ce) {}
+// CHECK:STDOUT: specific @K2.Q2(constants.%Self.593) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Simple3(constants.%T) {
 // CHECK:STDOUT:   %T.loc8_12.1 => constants.%T
 // CHECK:STDOUT:   %T.as_type.loc8_23.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.466ee6.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f43b58.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @K2.Q2(constants.%K2.facet) {}
@@ -650,75 +650,75 @@ fn Works() {
 // CHECK:STDOUT: specific @Compound3(constants.%V) {
 // CHECK:STDOUT:   %V.loc14_14.1 => constants.%V
 // CHECK:STDOUT:   %V.as_type.loc14_25.1 => constants.%V.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.466ee6.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f43b58.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- instance.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %L1.type: type = facet_type <@L1> [concrete]
-// CHECK:STDOUT:   %Self.04c: %L1.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.759: type = facet_access_type %Self.04c [symbolic]
-// CHECK:STDOUT:   %pattern_type.ad3e89.1: type = pattern_type %Self.as_type.759 [symbolic]
+// CHECK:STDOUT:   %Self.112: %L1.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.351: type = facet_access_type %Self.112 [symbolic]
+// CHECK:STDOUT:   %pattern_type.cb4262.1: type = pattern_type %Self.as_type.351 [symbolic]
 // CHECK:STDOUT:   %L1.R1.type: type = fn_type @L1.R1 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %L1.R1: %L1.R1.type = struct_value () [concrete]
 // CHECK:STDOUT:   %L1.assoc_type: type = assoc_entity_type @L1 [concrete]
 // CHECK:STDOUT:   %assoc0.8b4: %L1.assoc_type = assoc_entity element0, @L1.%L1.R1.decl [concrete]
-// CHECK:STDOUT:   %ptr.72f01d.1: type = ptr_type %Self.as_type.759 [symbolic]
-// CHECK:STDOUT:   %pattern_type.53384b.1: type = pattern_type %ptr.72f01d.1 [symbolic]
+// CHECK:STDOUT:   %ptr.87f2ee.1: type = ptr_type %Self.as_type.351 [symbolic]
+// CHECK:STDOUT:   %pattern_type.c0652c.1: type = pattern_type %ptr.87f2ee.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %L1.S1.type: type = fn_type @L1.S1 [concrete]
 // CHECK:STDOUT:   %L1.S1: %L1.S1.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %L1.assoc_type = assoc_entity element1, @L1.%L1.S1.decl [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %T.04c: %L1.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.5da: type = pattern_type %L1.type [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.04c [symbolic]
-// CHECK:STDOUT:   %pattern_type.ad3e89.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %T.112: %L1.type = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.1cf: type = pattern_type %L1.type [concrete]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.112 [symbolic]
+// CHECK:STDOUT:   %pattern_type.cb4262.2: type = pattern_type %T.as_type [symbolic]
 // CHECK:STDOUT:   %Simple4.type: type = fn_type @Simple4 [concrete]
 // CHECK:STDOUT:   %Simple4: %Simple4.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.97cd40.1: <witness> = require_complete_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %L1.lookup_impl_witness.0a136b.1: <witness> = lookup_impl_witness %T.04c, @L1 [symbolic]
-// CHECK:STDOUT:   %L1.facet.ed78cc.1: %L1.type = facet_value %T.as_type, (%L1.lookup_impl_witness.0a136b.1) [symbolic]
-// CHECK:STDOUT:   %.3b7304.1: type = fn_type_with_self_type %L1.R1.type, %L1.facet.ed78cc.1 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.a7f881.1: %.3b7304.1 = impl_witness_access %L1.lookup_impl_witness.0a136b.1, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.f11365.1: <specific function> = specific_impl_function %impl.elem0.a7f881.1, @L1.R1(%L1.facet.ed78cc.1) [symbolic]
-// CHECK:STDOUT:   %.e9a411.1: type = fn_type_with_self_type %L1.S1.type, %L1.facet.ed78cc.1 [symbolic]
-// CHECK:STDOUT:   %impl.elem1.a8c6e3.1: %.e9a411.1 = impl_witness_access %L1.lookup_impl_witness.0a136b.1, element1 [symbolic]
-// CHECK:STDOUT:   %ptr.72f01d.2: type = ptr_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %pattern_type.53384b.2: type = pattern_type %ptr.72f01d.2 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.bbb82e.1: <specific function> = specific_impl_function %impl.elem1.a8c6e3.1, @L1.S1(%L1.facet.ed78cc.1) [symbolic]
-// CHECK:STDOUT:   %require_complete.9326df.1: <witness> = require_complete_type %ptr.72f01d.2 [symbolic]
+// CHECK:STDOUT:   %require_complete.a52deb.1: <witness> = require_complete_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %L1.lookup_impl_witness.d9f5df.1: <witness> = lookup_impl_witness %T.112, @L1 [symbolic]
+// CHECK:STDOUT:   %L1.facet.1cc812.1: %L1.type = facet_value %T.as_type, (%L1.lookup_impl_witness.d9f5df.1) [symbolic]
+// CHECK:STDOUT:   %.cad400.1: type = fn_type_with_self_type %L1.R1.type, %L1.facet.1cc812.1 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.c5e026.1: %.cad400.1 = impl_witness_access %L1.lookup_impl_witness.d9f5df.1, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.5f85c4.1: <specific function> = specific_impl_function %impl.elem0.c5e026.1, @L1.R1(%L1.facet.1cc812.1) [symbolic]
+// CHECK:STDOUT:   %.9b5ba3.1: type = fn_type_with_self_type %L1.S1.type, %L1.facet.1cc812.1 [symbolic]
+// CHECK:STDOUT:   %impl.elem1.d07d0e.1: %.9b5ba3.1 = impl_witness_access %L1.lookup_impl_witness.d9f5df.1, element1 [symbolic]
+// CHECK:STDOUT:   %ptr.87f2ee.2: type = ptr_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.c0652c.2: type = pattern_type %ptr.87f2ee.2 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.2473a0.1: <specific function> = specific_impl_function %impl.elem1.d07d0e.1, @L1.S1(%L1.facet.1cc812.1) [symbolic]
+// CHECK:STDOUT:   %require_complete.5158e1.1: <witness> = require_complete_type %ptr.87f2ee.2 [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness.87177a.1: <witness> = lookup_impl_witness %T.04c, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.a7da23.1: %Destroy.type = facet_value %T.as_type, (%Destroy.lookup_impl_witness.87177a.1) [symbolic]
-// CHECK:STDOUT:   %.0f4deb.1: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.a7da23.1 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.71dfa9.1: %.0f4deb.1 = impl_witness_access %Destroy.lookup_impl_witness.87177a.1, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.5803ed.1: <specific function> = specific_impl_function %impl.elem0.71dfa9.1, @Destroy.Op(%Destroy.facet.a7da23.1) [symbolic]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness.c7977f.1: <witness> = lookup_impl_witness %T.112, @Destroy [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.f26842.1: %Destroy.type = facet_value %T.as_type, (%Destroy.lookup_impl_witness.c7977f.1) [symbolic]
+// CHECK:STDOUT:   %.acaa49.1: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.f26842.1 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.b71e6c.1: %.acaa49.1 = impl_witness_access %Destroy.lookup_impl_witness.c7977f.1, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.21ccd1.1: <specific function> = specific_impl_function %impl.elem0.b71e6c.1, @Destroy.Op(%Destroy.facet.f26842.1) [symbolic]
 // CHECK:STDOUT:   %V: %L1.type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %pattern_type.ad3e89.3: type = pattern_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.cb4262.3: type = pattern_type %V.as_type [symbolic]
 // CHECK:STDOUT:   %Compound4.type: type = fn_type @Compound4 [concrete]
 // CHECK:STDOUT:   %Compound4: %Compound4.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.97cd40.2: <witness> = require_complete_type %V.as_type [symbolic]
-// CHECK:STDOUT:   %L1.lookup_impl_witness.0a136b.2: <witness> = lookup_impl_witness %V, @L1 [symbolic]
-// CHECK:STDOUT:   %L1.facet.ed78cc.2: %L1.type = facet_value %V.as_type, (%L1.lookup_impl_witness.0a136b.2) [symbolic]
-// CHECK:STDOUT:   %.3b7304.2: type = fn_type_with_self_type %L1.R1.type, %L1.facet.ed78cc.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.a7f881.2: %.3b7304.2 = impl_witness_access %L1.lookup_impl_witness.0a136b.2, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.f11365.2: <specific function> = specific_impl_function %impl.elem0.a7f881.2, @L1.R1(%L1.facet.ed78cc.2) [symbolic]
-// CHECK:STDOUT:   %.e9a411.2: type = fn_type_with_self_type %L1.S1.type, %L1.facet.ed78cc.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem1.a8c6e3.2: %.e9a411.2 = impl_witness_access %L1.lookup_impl_witness.0a136b.2, element1 [symbolic]
-// CHECK:STDOUT:   %ptr.72f01d.3: type = ptr_type %V.as_type [symbolic]
-// CHECK:STDOUT:   %pattern_type.53384b.3: type = pattern_type %ptr.72f01d.3 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.bbb82e.2: <specific function> = specific_impl_function %impl.elem1.a8c6e3.2, @L1.S1(%L1.facet.ed78cc.2) [symbolic]
-// CHECK:STDOUT:   %require_complete.9326df.2: <witness> = require_complete_type %ptr.72f01d.3 [symbolic]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness.87177a.2: <witness> = lookup_impl_witness %V, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.a7da23.2: %Destroy.type = facet_value %V.as_type, (%Destroy.lookup_impl_witness.87177a.2) [symbolic]
-// CHECK:STDOUT:   %.0f4deb.2: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.a7da23.2 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.71dfa9.2: %.0f4deb.2 = impl_witness_access %Destroy.lookup_impl_witness.87177a.2, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.5803ed.2: <specific function> = specific_impl_function %impl.elem0.71dfa9.2, @Destroy.Op(%Destroy.facet.a7da23.2) [symbolic]
+// CHECK:STDOUT:   %require_complete.a52deb.2: <witness> = require_complete_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %L1.lookup_impl_witness.d9f5df.2: <witness> = lookup_impl_witness %V, @L1 [symbolic]
+// CHECK:STDOUT:   %L1.facet.1cc812.2: %L1.type = facet_value %V.as_type, (%L1.lookup_impl_witness.d9f5df.2) [symbolic]
+// CHECK:STDOUT:   %.cad400.2: type = fn_type_with_self_type %L1.R1.type, %L1.facet.1cc812.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.c5e026.2: %.cad400.2 = impl_witness_access %L1.lookup_impl_witness.d9f5df.2, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.5f85c4.2: <specific function> = specific_impl_function %impl.elem0.c5e026.2, @L1.R1(%L1.facet.1cc812.2) [symbolic]
+// CHECK:STDOUT:   %.9b5ba3.2: type = fn_type_with_self_type %L1.S1.type, %L1.facet.1cc812.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem1.d07d0e.2: %.9b5ba3.2 = impl_witness_access %L1.lookup_impl_witness.d9f5df.2, element1 [symbolic]
+// CHECK:STDOUT:   %ptr.87f2ee.3: type = ptr_type %V.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.c0652c.3: type = pattern_type %ptr.87f2ee.3 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.2473a0.2: <specific function> = specific_impl_function %impl.elem1.d07d0e.2, @L1.S1(%L1.facet.1cc812.2) [symbolic]
+// CHECK:STDOUT:   %require_complete.5158e1.2: <witness> = require_complete_type %ptr.87f2ee.3 [symbolic]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness.c7977f.2: <witness> = lookup_impl_witness %V, @Destroy [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.f26842.2: %Destroy.type = facet_value %V.as_type, (%Destroy.lookup_impl_witness.c7977f.2) [symbolic]
+// CHECK:STDOUT:   %.acaa49.2: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.f26842.2 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.b71e6c.2: %.acaa49.2 = impl_witness_access %Destroy.lookup_impl_witness.c7977f.2, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.21ccd1.2: <specific function> = specific_impl_function %impl.elem0.b71e6c.2, @Destroy.Op(%Destroy.facet.f26842.2) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -740,27 +740,27 @@ fn Works() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %L1.decl: type = interface_decl @L1 [concrete = constants.%L1.type] {} {}
 // CHECK:STDOUT:   %Simple4.decl: %Simple4.type = fn_decl @Simple4 [concrete = constants.%Simple4] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.5da = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %x.patt: @Simple4.%pattern_type (%pattern_type.ad3e89.2) = binding_pattern x [concrete]
-// CHECK:STDOUT:     %x.param_patt: @Simple4.%pattern_type (%pattern_type.ad3e89.2) = value_param_pattern %x.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.1cf = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %x.patt: @Simple4.%pattern_type (%pattern_type.cb4262.2) = binding_pattern x [concrete]
+// CHECK:STDOUT:     %x.param_patt: @Simple4.%pattern_type (%pattern_type.cb4262.2) = value_param_pattern %x.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc9_16: type = splice_block %L1.ref [concrete = constants.%L1.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %L1.ref: type = name_ref L1, file.%L1.decl [concrete = constants.%L1.type]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc9_12.2: %L1.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_12.1 (constants.%T.04c)]
+// CHECK:STDOUT:     %T.loc9_12.2: %L1.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_12.1 (constants.%T.112)]
 // CHECK:STDOUT:     %x.param: @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc9_23.1: type = splice_block %.loc9_23.2 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc9: %L1.type = name_ref T, %T.loc9_12.2 [symbolic = %T.loc9_12.1 (constants.%T.04c)]
+// CHECK:STDOUT:       %T.ref.loc9: %L1.type = name_ref T, %T.loc9_12.2 [symbolic = %T.loc9_12.1 (constants.%T.112)]
 // CHECK:STDOUT:       %T.as_type.loc9_23.2: type = facet_access_type %T.ref.loc9 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc9_23.2: type = converted %T.ref.loc9, %T.as_type.loc9_23.2 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %x: @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = bind_name x, %x.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Compound4.decl: %Compound4.type = fn_decl @Compound4 [concrete = constants.%Compound4] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.5da = symbolic_binding_pattern V, 0 [concrete]
-// CHECK:STDOUT:     %y.patt: @Compound4.%pattern_type (%pattern_type.ad3e89.3) = binding_pattern y [concrete]
-// CHECK:STDOUT:     %y.param_patt: @Compound4.%pattern_type (%pattern_type.ad3e89.3) = value_param_pattern %y.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.1cf = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %y.patt: @Compound4.%pattern_type (%pattern_type.cb4262.3) = binding_pattern y [concrete]
+// CHECK:STDOUT:     %y.param_patt: @Compound4.%pattern_type (%pattern_type.cb4262.3) = value_param_pattern %y.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc16_18: type = splice_block %L1.ref.loc16 [concrete = constants.%L1.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -778,33 +778,33 @@ fn Works() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @L1 {
-// CHECK:STDOUT:   %Self: %L1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.04c]
+// CHECK:STDOUT:   %Self: %L1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.112]
 // CHECK:STDOUT:   %L1.R1.decl: %L1.R1.type = fn_decl @L1.R1 [concrete = constants.%L1.R1] {
-// CHECK:STDOUT:     %self.patt: @L1.R1.%pattern_type (%pattern_type.ad3e89.1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @L1.R1.%pattern_type (%pattern_type.ad3e89.1) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @L1.R1.%pattern_type (%pattern_type.cb4262.1) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @L1.R1.%pattern_type (%pattern_type.cb4262.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @L1.R1.%Self.as_type.loc4_15.1 (%Self.as_type.759) = value_param call_param0
-// CHECK:STDOUT:     %.loc4_15.1: type = splice_block %.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.759)] {
-// CHECK:STDOUT:       %Self.ref: %L1.type = name_ref Self, @L1.%Self [symbolic = %Self (constants.%Self.04c)]
-// CHECK:STDOUT:       %Self.as_type.loc4_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.759)]
-// CHECK:STDOUT:       %.loc4_15.2: type = converted %Self.ref, %Self.as_type.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.759)]
+// CHECK:STDOUT:     %self.param: @L1.R1.%Self.as_type.loc4_15.1 (%Self.as_type.351) = value_param call_param0
+// CHECK:STDOUT:     %.loc4_15.1: type = splice_block %.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.351)] {
+// CHECK:STDOUT:       %Self.ref: %L1.type = name_ref Self, @L1.%Self [symbolic = %Self (constants.%Self.112)]
+// CHECK:STDOUT:       %Self.as_type.loc4_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.351)]
+// CHECK:STDOUT:       %.loc4_15.2: type = converted %Self.ref, %Self.as_type.loc4_15.2 [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.351)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @L1.R1.%Self.as_type.loc4_15.1 (%Self.as_type.759) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @L1.R1.%Self.as_type.loc4_15.1 (%Self.as_type.351) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %L1.assoc_type = assoc_entity element0, %L1.R1.decl [concrete = constants.%assoc0.8b4]
 // CHECK:STDOUT:   %L1.S1.decl: %L1.S1.type = fn_decl @L1.S1 [concrete = constants.%L1.S1] {
-// CHECK:STDOUT:     %self.patt: @L1.S1.%pattern_type (%pattern_type.53384b.1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @L1.S1.%pattern_type (%pattern_type.53384b.1) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @L1.S1.%pattern_type (%pattern_type.c0652c.1) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @L1.S1.%pattern_type (%pattern_type.c0652c.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %.loc5_9: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @L1.S1.%ptr.loc5_24.1 (%ptr.72f01d.1) = value_param call_param0
-// CHECK:STDOUT:     %.loc5_24.1: type = splice_block %ptr.loc5_24.2 [symbolic = %ptr.loc5_24.1 (constants.%ptr.72f01d.1)] {
-// CHECK:STDOUT:       %Self.ref: %L1.type = name_ref Self, @L1.%Self [symbolic = %Self (constants.%Self.04c)]
-// CHECK:STDOUT:       %Self.as_type.loc5_24.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_24.1 (constants.%Self.as_type.759)]
-// CHECK:STDOUT:       %.loc5_24.2: type = converted %Self.ref, %Self.as_type.loc5_24.2 [symbolic = %Self.as_type.loc5_24.1 (constants.%Self.as_type.759)]
-// CHECK:STDOUT:       %ptr.loc5_24.2: type = ptr_type %.loc5_24.2 [symbolic = %ptr.loc5_24.1 (constants.%ptr.72f01d.1)]
+// CHECK:STDOUT:     %self.param: @L1.S1.%ptr.loc5_24.1 (%ptr.87f2ee.1) = value_param call_param0
+// CHECK:STDOUT:     %.loc5_24.1: type = splice_block %ptr.loc5_24.2 [symbolic = %ptr.loc5_24.1 (constants.%ptr.87f2ee.1)] {
+// CHECK:STDOUT:       %Self.ref: %L1.type = name_ref Self, @L1.%Self [symbolic = %Self (constants.%Self.112)]
+// CHECK:STDOUT:       %Self.as_type.loc5_24.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_24.1 (constants.%Self.as_type.351)]
+// CHECK:STDOUT:       %.loc5_24.2: type = converted %Self.ref, %Self.as_type.loc5_24.2 [symbolic = %Self.as_type.loc5_24.1 (constants.%Self.as_type.351)]
+// CHECK:STDOUT:       %ptr.loc5_24.2: type = ptr_type %.loc5_24.2 [symbolic = %ptr.loc5_24.1 (constants.%ptr.87f2ee.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @L1.S1.%ptr.loc5_24.1 (%ptr.72f01d.1) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @L1.S1.%ptr.loc5_24.1 (%ptr.87f2ee.1) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %L1.assoc_type = assoc_entity element1, %L1.S1.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -816,86 +816,86 @@ fn Works() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @L1.R1(@L1.%Self: %L1.type) {
-// CHECK:STDOUT:   %Self: %L1.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.04c)]
-// CHECK:STDOUT:   %Self.as_type.loc4_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.759)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.ad3e89.1)]
+// CHECK:STDOUT:   %Self: %L1.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.112)]
+// CHECK:STDOUT:   %Self.as_type.loc4_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_15.1 (constants.%Self.as_type.351)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc4_15.1 [symbolic = %pattern_type (constants.%pattern_type.cb4262.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @L1.R1.%Self.as_type.loc4_15.1 (%Self.as_type.759));
+// CHECK:STDOUT:   fn(%self.param: @L1.R1.%Self.as_type.loc4_15.1 (%Self.as_type.351));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @L1.S1(@L1.%Self: %L1.type) {
-// CHECK:STDOUT:   %Self: %L1.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.04c)]
-// CHECK:STDOUT:   %Self.as_type.loc5_24.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_24.1 (constants.%Self.as_type.759)]
-// CHECK:STDOUT:   %ptr.loc5_24.1: type = ptr_type %Self.as_type.loc5_24.1 [symbolic = %ptr.loc5_24.1 (constants.%ptr.72f01d.1)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr.loc5_24.1 [symbolic = %pattern_type (constants.%pattern_type.53384b.1)]
+// CHECK:STDOUT:   %Self: %L1.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.112)]
+// CHECK:STDOUT:   %Self.as_type.loc5_24.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_24.1 (constants.%Self.as_type.351)]
+// CHECK:STDOUT:   %ptr.loc5_24.1: type = ptr_type %Self.as_type.loc5_24.1 [symbolic = %ptr.loc5_24.1 (constants.%ptr.87f2ee.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr.loc5_24.1 [symbolic = %pattern_type (constants.%pattern_type.c0652c.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @L1.S1.%ptr.loc5_24.1 (%ptr.72f01d.1));
+// CHECK:STDOUT:   fn(%self.param: @L1.S1.%ptr.loc5_24.1 (%ptr.87f2ee.1));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Simple4(%T.loc9_12.2: %L1.type) {
-// CHECK:STDOUT:   %T.loc9_12.1: %L1.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_12.1 (constants.%T.04c)]
+// CHECK:STDOUT:   %T.loc9_12.1: %L1.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_12.1 (constants.%T.112)]
 // CHECK:STDOUT:   %T.as_type.loc9_23.1: type = facet_access_type %T.loc9_12.1 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_23.1 [symbolic = %pattern_type (constants.%pattern_type.ad3e89.2)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %T.as_type.loc9_23.1 [symbolic = %pattern_type (constants.%pattern_type.cb4262.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc9: <witness> = require_complete_type %T.as_type.loc9_23.1 [symbolic = %require_complete.loc9 (constants.%require_complete.97cd40.1)]
-// CHECK:STDOUT:   %L1.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc9_12.1, @L1 [symbolic = %L1.lookup_impl_witness (constants.%L1.lookup_impl_witness.0a136b.1)]
-// CHECK:STDOUT:   %L1.facet: %L1.type = facet_value %T.as_type.loc9_23.1, (%L1.lookup_impl_witness) [symbolic = %L1.facet (constants.%L1.facet.ed78cc.1)]
-// CHECK:STDOUT:   %.loc10_4.2: type = fn_type_with_self_type constants.%L1.R1.type, %L1.facet [symbolic = %.loc10_4.2 (constants.%.3b7304.1)]
-// CHECK:STDOUT:   %impl.elem0.loc10_4.2: @Simple4.%.loc10_4.2 (%.3b7304.1) = impl_witness_access %L1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0.a7f881.1)]
-// CHECK:STDOUT:   %specific_impl_fn.loc10_4.2: <specific function> = specific_impl_function %impl.elem0.loc10_4.2, @L1.R1(%L1.facet) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn.f11365.1)]
-// CHECK:STDOUT:   %.loc12_8.2: type = fn_type_with_self_type constants.%L1.S1.type, %L1.facet [symbolic = %.loc12_8.2 (constants.%.e9a411.1)]
-// CHECK:STDOUT:   %impl.elem1.loc12_8.2: @Simple4.%.loc12_8.2 (%.e9a411.1) = impl_witness_access %L1.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc12_8.2 (constants.%impl.elem1.a8c6e3.1)]
-// CHECK:STDOUT:   %specific_impl_fn.loc12_8.2: <specific function> = specific_impl_function %impl.elem1.loc12_8.2, @L1.S1(%L1.facet) [symbolic = %specific_impl_fn.loc12_8.2 (constants.%specific_impl_fn.bbb82e.1)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc9_23.1 [symbolic = %ptr (constants.%ptr.72f01d.2)]
-// CHECK:STDOUT:   %require_complete.loc12: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc12 (constants.%require_complete.9326df.1)]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc9_12.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness.87177a.1)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.as_type.loc9_23.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.a7da23.1)]
-// CHECK:STDOUT:   %.loc11_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc11_3.3 (constants.%.0f4deb.1)]
-// CHECK:STDOUT:   %impl.elem0.loc11_3.2: @Simple4.%.loc11_3.3 (%.0f4deb.1) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_3.2 (constants.%impl.elem0.71dfa9.1)]
-// CHECK:STDOUT:   %specific_impl_fn.loc11_3.2: <specific function> = specific_impl_function %impl.elem0.loc11_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc11_3.2 (constants.%specific_impl_fn.5803ed.1)]
+// CHECK:STDOUT:   %require_complete.loc9: <witness> = require_complete_type %T.as_type.loc9_23.1 [symbolic = %require_complete.loc9 (constants.%require_complete.a52deb.1)]
+// CHECK:STDOUT:   %L1.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc9_12.1, @L1 [symbolic = %L1.lookup_impl_witness (constants.%L1.lookup_impl_witness.d9f5df.1)]
+// CHECK:STDOUT:   %L1.facet: %L1.type = facet_value %T.as_type.loc9_23.1, (%L1.lookup_impl_witness) [symbolic = %L1.facet (constants.%L1.facet.1cc812.1)]
+// CHECK:STDOUT:   %.loc10_4.2: type = fn_type_with_self_type constants.%L1.R1.type, %L1.facet [symbolic = %.loc10_4.2 (constants.%.cad400.1)]
+// CHECK:STDOUT:   %impl.elem0.loc10_4.2: @Simple4.%.loc10_4.2 (%.cad400.1) = impl_witness_access %L1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0.c5e026.1)]
+// CHECK:STDOUT:   %specific_impl_fn.loc10_4.2: <specific function> = specific_impl_function %impl.elem0.loc10_4.2, @L1.R1(%L1.facet) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn.5f85c4.1)]
+// CHECK:STDOUT:   %.loc12_8.2: type = fn_type_with_self_type constants.%L1.S1.type, %L1.facet [symbolic = %.loc12_8.2 (constants.%.9b5ba3.1)]
+// CHECK:STDOUT:   %impl.elem1.loc12_8.2: @Simple4.%.loc12_8.2 (%.9b5ba3.1) = impl_witness_access %L1.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc12_8.2 (constants.%impl.elem1.d07d0e.1)]
+// CHECK:STDOUT:   %specific_impl_fn.loc12_8.2: <specific function> = specific_impl_function %impl.elem1.loc12_8.2, @L1.S1(%L1.facet) [symbolic = %specific_impl_fn.loc12_8.2 (constants.%specific_impl_fn.2473a0.1)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %T.as_type.loc9_23.1 [symbolic = %ptr (constants.%ptr.87f2ee.2)]
+// CHECK:STDOUT:   %require_complete.loc12: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc12 (constants.%require_complete.5158e1.1)]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc9_12.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness.c7977f.1)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %T.as_type.loc9_23.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.f26842.1)]
+// CHECK:STDOUT:   %.loc11_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc11_3.3 (constants.%.acaa49.1)]
+// CHECK:STDOUT:   %impl.elem0.loc11_3.2: @Simple4.%.loc11_3.3 (%.acaa49.1) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc11_3.2 (constants.%impl.elem0.b71e6c.1)]
+// CHECK:STDOUT:   %specific_impl_fn.loc11_3.2: <specific function> = specific_impl_function %impl.elem0.loc11_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc11_3.2 (constants.%specific_impl_fn.21ccd1.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%x.param: @Simple4.%T.as_type.loc9_23.1 (%T.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %x.ref.loc10: @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = name_ref x, %x
 // CHECK:STDOUT:     %R1.ref: %L1.assoc_type = name_ref R1, @L1.%assoc0 [concrete = constants.%assoc0.8b4]
-// CHECK:STDOUT:     %T.as_type.loc10: type = facet_access_type constants.%T.04c [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc10_4.1: type = converted constants.%T.04c, %T.as_type.loc10 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc10_4.1: @Simple4.%.loc10_4.2 (%.3b7304.1) = impl_witness_access constants.%L1.lookup_impl_witness.0a136b.1, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0.a7f881.1)]
+// CHECK:STDOUT:     %T.as_type.loc10: type = facet_access_type constants.%T.112 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc10_4.1: type = converted constants.%T.112, %T.as_type.loc10 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem0.loc10_4.1: @Simple4.%.loc10_4.2 (%.cad400.1) = impl_witness_access constants.%L1.lookup_impl_witness.d9f5df.1, element0 [symbolic = %impl.elem0.loc10_4.2 (constants.%impl.elem0.c5e026.1)]
 // CHECK:STDOUT:     %bound_method.loc10_4: <bound method> = bound_method %x.ref.loc10, %impl.elem0.loc10_4.1
-// CHECK:STDOUT:     %specific_impl_fn.loc10_4.1: <specific function> = specific_impl_function %impl.elem0.loc10_4.1, @L1.R1(constants.%L1.facet.ed78cc.1) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn.f11365.1)]
+// CHECK:STDOUT:     %specific_impl_fn.loc10_4.1: <specific function> = specific_impl_function %impl.elem0.loc10_4.1, @L1.R1(constants.%L1.facet.1cc812.1) [symbolic = %specific_impl_fn.loc10_4.2 (constants.%specific_impl_fn.5f85c4.1)]
 // CHECK:STDOUT:     %bound_method.loc10_8: <bound method> = bound_method %x.ref.loc10, %specific_impl_fn.loc10_4.1
 // CHECK:STDOUT:     %.loc10_8: init %empty_tuple.type = call %bound_method.loc10_8(%x.ref.loc10)
 // CHECK:STDOUT:     name_binding_decl {
-// CHECK:STDOUT:       %xcopy.patt: @Simple4.%pattern_type (%pattern_type.ad3e89.2) = binding_pattern xcopy [concrete]
-// CHECK:STDOUT:       %xcopy.var_patt: @Simple4.%pattern_type (%pattern_type.ad3e89.2) = var_pattern %xcopy.patt [concrete]
+// CHECK:STDOUT:       %xcopy.patt: @Simple4.%pattern_type (%pattern_type.cb4262.2) = binding_pattern xcopy [concrete]
+// CHECK:STDOUT:       %xcopy.var_patt: @Simple4.%pattern_type (%pattern_type.cb4262.2) = var_pattern %xcopy.patt [concrete]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %xcopy.var: ref @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = var %xcopy.var_patt
 // CHECK:STDOUT:     %x.ref.loc11: @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = name_ref x, %x
 // CHECK:STDOUT:     assign %xcopy.var, %x.ref.loc11
 // CHECK:STDOUT:     %.loc11_14.1: type = splice_block %.loc11_14.2 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)] {
-// CHECK:STDOUT:       %T.ref.loc11: %L1.type = name_ref T, %T.loc9_12.2 [symbolic = %T.loc9_12.1 (constants.%T.04c)]
+// CHECK:STDOUT:       %T.ref.loc11: %L1.type = name_ref T, %T.loc9_12.2 [symbolic = %T.loc9_12.1 (constants.%T.112)]
 // CHECK:STDOUT:       %T.as_type.loc11_14: type = facet_access_type %T.ref.loc11 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
 // CHECK:STDOUT:       %.loc11_14.2: type = converted %T.ref.loc11, %T.as_type.loc11_14 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %xcopy: ref @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = bind_name xcopy, %xcopy.var
 // CHECK:STDOUT:     %xcopy.ref: ref @Simple4.%T.as_type.loc9_23.1 (%T.as_type) = name_ref xcopy, %xcopy
 // CHECK:STDOUT:     %S1.ref: %L1.assoc_type = name_ref S1, @L1.%assoc1 [concrete = constants.%assoc1]
-// CHECK:STDOUT:     %T.as_type.loc12: type = facet_access_type constants.%T.04c [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc12_8.1: type = converted constants.%T.04c, %T.as_type.loc12 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem1.loc12_8.1: @Simple4.%.loc12_8.2 (%.e9a411.1) = impl_witness_access constants.%L1.lookup_impl_witness.0a136b.1, element1 [symbolic = %impl.elem1.loc12_8.2 (constants.%impl.elem1.a8c6e3.1)]
+// CHECK:STDOUT:     %T.as_type.loc12: type = facet_access_type constants.%T.112 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc12_8.1: type = converted constants.%T.112, %T.as_type.loc12 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem1.loc12_8.1: @Simple4.%.loc12_8.2 (%.9b5ba3.1) = impl_witness_access constants.%L1.lookup_impl_witness.d9f5df.1, element1 [symbolic = %impl.elem1.loc12_8.2 (constants.%impl.elem1.d07d0e.1)]
 // CHECK:STDOUT:     %bound_method.loc12_8: <bound method> = bound_method %xcopy.ref, %impl.elem1.loc12_8.1
-// CHECK:STDOUT:     %specific_impl_fn.loc12_8.1: <specific function> = specific_impl_function %impl.elem1.loc12_8.1, @L1.S1(constants.%L1.facet.ed78cc.1) [symbolic = %specific_impl_fn.loc12_8.2 (constants.%specific_impl_fn.bbb82e.1)]
+// CHECK:STDOUT:     %specific_impl_fn.loc12_8.1: <specific function> = specific_impl_function %impl.elem1.loc12_8.1, @L1.S1(constants.%L1.facet.1cc812.1) [symbolic = %specific_impl_fn.loc12_8.2 (constants.%specific_impl_fn.2473a0.1)]
 // CHECK:STDOUT:     %bound_method.loc12_12: <bound method> = bound_method %xcopy.ref, %specific_impl_fn.loc12_8.1
-// CHECK:STDOUT:     %addr.loc12: @Simple4.%ptr (%ptr.72f01d.2) = addr_of %xcopy.ref
+// CHECK:STDOUT:     %addr.loc12: @Simple4.%ptr (%ptr.87f2ee.2) = addr_of %xcopy.ref
 // CHECK:STDOUT:     %.loc12_12: init %empty_tuple.type = call %bound_method.loc12_12(%addr.loc12)
-// CHECK:STDOUT:     %T.as_type.loc11_3: type = facet_access_type constants.%T.04c [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %.loc11_3.1: type = converted constants.%T.04c, %T.as_type.loc11_3 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc11_3.1: @Simple4.%.loc11_3.3 (%.0f4deb.1) = impl_witness_access constants.%Destroy.lookup_impl_witness.87177a.1, element0 [symbolic = %impl.elem0.loc11_3.2 (constants.%impl.elem0.71dfa9.1)]
+// CHECK:STDOUT:     %T.as_type.loc11_3: type = facet_access_type constants.%T.112 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %.loc11_3.1: type = converted constants.%T.112, %T.as_type.loc11_3 [symbolic = %T.as_type.loc9_23.1 (constants.%T.as_type)]
+// CHECK:STDOUT:     %impl.elem0.loc11_3.1: @Simple4.%.loc11_3.3 (%.acaa49.1) = impl_witness_access constants.%Destroy.lookup_impl_witness.c7977f.1, element0 [symbolic = %impl.elem0.loc11_3.2 (constants.%impl.elem0.b71e6c.1)]
 // CHECK:STDOUT:     %bound_method.loc11_3.1: <bound method> = bound_method %xcopy.var, %impl.elem0.loc11_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc11_3.1: <specific function> = specific_impl_function %impl.elem0.loc11_3.1, @Destroy.Op(constants.%Destroy.facet.a7da23.1) [symbolic = %specific_impl_fn.loc11_3.2 (constants.%specific_impl_fn.5803ed.1)]
+// CHECK:STDOUT:     %specific_impl_fn.loc11_3.1: <specific function> = specific_impl_function %impl.elem0.loc11_3.1, @Destroy.Op(constants.%Destroy.facet.f26842.1) [symbolic = %specific_impl_fn.loc11_3.2 (constants.%specific_impl_fn.21ccd1.1)]
 // CHECK:STDOUT:     %bound_method.loc11_3.2: <bound method> = bound_method %xcopy.var, %specific_impl_fn.loc11_3.1
-// CHECK:STDOUT:     %addr.loc11: @Simple4.%ptr (%ptr.72f01d.2) = addr_of %xcopy.var
+// CHECK:STDOUT:     %addr.loc11: @Simple4.%ptr (%ptr.87f2ee.2) = addr_of %xcopy.var
 // CHECK:STDOUT:     %.loc11_3.2: init %empty_tuple.type = call %bound_method.loc11_3.2(%addr.loc11)
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -904,39 +904,39 @@ fn Works() {
 // CHECK:STDOUT: generic fn @Compound4(%V.loc16_14.2: %L1.type) {
 // CHECK:STDOUT:   %V.loc16_14.1: %L1.type = bind_symbolic_name V, 0 [symbolic = %V.loc16_14.1 (constants.%V)]
 // CHECK:STDOUT:   %V.as_type.loc16_25.1: type = facet_access_type %V.loc16_14.1 [symbolic = %V.as_type.loc16_25.1 (constants.%V.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc16_25.1 [symbolic = %pattern_type (constants.%pattern_type.ad3e89.3)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %V.as_type.loc16_25.1 [symbolic = %pattern_type (constants.%pattern_type.cb4262.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc16: <witness> = require_complete_type %V.as_type.loc16_25.1 [symbolic = %require_complete.loc16 (constants.%require_complete.97cd40.2)]
-// CHECK:STDOUT:   %L1.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc16_14.1, @L1 [symbolic = %L1.lookup_impl_witness (constants.%L1.lookup_impl_witness.0a136b.2)]
-// CHECK:STDOUT:   %L1.facet: %L1.type = facet_value %V.as_type.loc16_25.1, (%L1.lookup_impl_witness) [symbolic = %L1.facet (constants.%L1.facet.ed78cc.2)]
-// CHECK:STDOUT:   %.loc17_4: type = fn_type_with_self_type constants.%L1.R1.type, %L1.facet [symbolic = %.loc17_4 (constants.%.3b7304.2)]
-// CHECK:STDOUT:   %impl.elem0.loc17_4.2: @Compound4.%.loc17_4 (%.3b7304.2) = impl_witness_access %L1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc17_4.2 (constants.%impl.elem0.a7f881.2)]
-// CHECK:STDOUT:   %specific_impl_fn.loc17_4.2: <specific function> = specific_impl_function %impl.elem0.loc17_4.2, @L1.R1(%L1.facet) [symbolic = %specific_impl_fn.loc17_4.2 (constants.%specific_impl_fn.f11365.2)]
-// CHECK:STDOUT:   %.loc19_8: type = fn_type_with_self_type constants.%L1.S1.type, %L1.facet [symbolic = %.loc19_8 (constants.%.e9a411.2)]
-// CHECK:STDOUT:   %impl.elem1.loc19_8.2: @Compound4.%.loc19_8 (%.e9a411.2) = impl_witness_access %L1.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc19_8.2 (constants.%impl.elem1.a8c6e3.2)]
-// CHECK:STDOUT:   %specific_impl_fn.loc19_8.2: <specific function> = specific_impl_function %impl.elem1.loc19_8.2, @L1.S1(%L1.facet) [symbolic = %specific_impl_fn.loc19_8.2 (constants.%specific_impl_fn.bbb82e.2)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %V.as_type.loc16_25.1 [symbolic = %ptr (constants.%ptr.72f01d.3)]
-// CHECK:STDOUT:   %require_complete.loc19: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc19 (constants.%require_complete.9326df.2)]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc16_14.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness.87177a.2)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %V.as_type.loc16_25.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.a7da23.2)]
-// CHECK:STDOUT:   %.loc18_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc18_3.3 (constants.%.0f4deb.2)]
-// CHECK:STDOUT:   %impl.elem0.loc18_3.2: @Compound4.%.loc18_3.3 (%.0f4deb.2) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0.71dfa9.2)]
-// CHECK:STDOUT:   %specific_impl_fn.loc18_3.2: <specific function> = specific_impl_function %impl.elem0.loc18_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc18_3.2 (constants.%specific_impl_fn.5803ed.2)]
+// CHECK:STDOUT:   %require_complete.loc16: <witness> = require_complete_type %V.as_type.loc16_25.1 [symbolic = %require_complete.loc16 (constants.%require_complete.a52deb.2)]
+// CHECK:STDOUT:   %L1.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc16_14.1, @L1 [symbolic = %L1.lookup_impl_witness (constants.%L1.lookup_impl_witness.d9f5df.2)]
+// CHECK:STDOUT:   %L1.facet: %L1.type = facet_value %V.as_type.loc16_25.1, (%L1.lookup_impl_witness) [symbolic = %L1.facet (constants.%L1.facet.1cc812.2)]
+// CHECK:STDOUT:   %.loc17_4: type = fn_type_with_self_type constants.%L1.R1.type, %L1.facet [symbolic = %.loc17_4 (constants.%.cad400.2)]
+// CHECK:STDOUT:   %impl.elem0.loc17_4.2: @Compound4.%.loc17_4 (%.cad400.2) = impl_witness_access %L1.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc17_4.2 (constants.%impl.elem0.c5e026.2)]
+// CHECK:STDOUT:   %specific_impl_fn.loc17_4.2: <specific function> = specific_impl_function %impl.elem0.loc17_4.2, @L1.R1(%L1.facet) [symbolic = %specific_impl_fn.loc17_4.2 (constants.%specific_impl_fn.5f85c4.2)]
+// CHECK:STDOUT:   %.loc19_8: type = fn_type_with_self_type constants.%L1.S1.type, %L1.facet [symbolic = %.loc19_8 (constants.%.9b5ba3.2)]
+// CHECK:STDOUT:   %impl.elem1.loc19_8.2: @Compound4.%.loc19_8 (%.9b5ba3.2) = impl_witness_access %L1.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc19_8.2 (constants.%impl.elem1.d07d0e.2)]
+// CHECK:STDOUT:   %specific_impl_fn.loc19_8.2: <specific function> = specific_impl_function %impl.elem1.loc19_8.2, @L1.S1(%L1.facet) [symbolic = %specific_impl_fn.loc19_8.2 (constants.%specific_impl_fn.2473a0.2)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %V.as_type.loc16_25.1 [symbolic = %ptr (constants.%ptr.87f2ee.3)]
+// CHECK:STDOUT:   %require_complete.loc19: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc19 (constants.%require_complete.5158e1.2)]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %V.loc16_14.1, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness.c7977f.2)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %V.as_type.loc16_25.1, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.f26842.2)]
+// CHECK:STDOUT:   %.loc18_3.3: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc18_3.3 (constants.%.acaa49.2)]
+// CHECK:STDOUT:   %impl.elem0.loc18_3.2: @Compound4.%.loc18_3.3 (%.acaa49.2) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0.b71e6c.2)]
+// CHECK:STDOUT:   %specific_impl_fn.loc18_3.2: <specific function> = specific_impl_function %impl.elem0.loc18_3.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc18_3.2 (constants.%specific_impl_fn.21ccd1.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%y.param: @Compound4.%V.as_type.loc16_25.1 (%V.as_type)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %y.ref.loc17: @Compound4.%V.as_type.loc16_25.1 (%V.as_type) = name_ref y, %y
 // CHECK:STDOUT:     %L1.ref.loc17: type = name_ref L1, file.%L1.decl [concrete = constants.%L1.type]
 // CHECK:STDOUT:     %R1.ref: %L1.assoc_type = name_ref R1, @L1.%assoc0 [concrete = constants.%assoc0.8b4]
-// CHECK:STDOUT:     %impl.elem0.loc17_4.1: @Compound4.%.loc17_4 (%.3b7304.2) = impl_witness_access constants.%L1.lookup_impl_witness.0a136b.2, element0 [symbolic = %impl.elem0.loc17_4.2 (constants.%impl.elem0.a7f881.2)]
+// CHECK:STDOUT:     %impl.elem0.loc17_4.1: @Compound4.%.loc17_4 (%.cad400.2) = impl_witness_access constants.%L1.lookup_impl_witness.d9f5df.2, element0 [symbolic = %impl.elem0.loc17_4.2 (constants.%impl.elem0.c5e026.2)]
 // CHECK:STDOUT:     %bound_method.loc17_4: <bound method> = bound_method %y.ref.loc17, %impl.elem0.loc17_4.1
-// CHECK:STDOUT:     %specific_impl_fn.loc17_4.1: <specific function> = specific_impl_function %impl.elem0.loc17_4.1, @L1.R1(constants.%L1.facet.ed78cc.2) [symbolic = %specific_impl_fn.loc17_4.2 (constants.%specific_impl_fn.f11365.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc17_4.1: <specific function> = specific_impl_function %impl.elem0.loc17_4.1, @L1.R1(constants.%L1.facet.1cc812.2) [symbolic = %specific_impl_fn.loc17_4.2 (constants.%specific_impl_fn.5f85c4.2)]
 // CHECK:STDOUT:     %bound_method.loc17_13: <bound method> = bound_method %y.ref.loc17, %specific_impl_fn.loc17_4.1
 // CHECK:STDOUT:     %.loc17_13: init %empty_tuple.type = call %bound_method.loc17_13(%y.ref.loc17)
 // CHECK:STDOUT:     name_binding_decl {
-// CHECK:STDOUT:       %ycopy.patt: @Compound4.%pattern_type (%pattern_type.ad3e89.3) = binding_pattern ycopy [concrete]
-// CHECK:STDOUT:       %ycopy.var_patt: @Compound4.%pattern_type (%pattern_type.ad3e89.3) = var_pattern %ycopy.patt [concrete]
+// CHECK:STDOUT:       %ycopy.patt: @Compound4.%pattern_type (%pattern_type.cb4262.3) = binding_pattern ycopy [concrete]
+// CHECK:STDOUT:       %ycopy.var_patt: @Compound4.%pattern_type (%pattern_type.cb4262.3) = var_pattern %ycopy.patt [concrete]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %ycopy.var: ref @Compound4.%V.as_type.loc16_25.1 (%V.as_type) = var %ycopy.var_patt
 // CHECK:STDOUT:     %y.ref.loc18: @Compound4.%V.as_type.loc16_25.1 (%V.as_type) = name_ref y, %y
@@ -950,73 +950,73 @@ fn Works() {
 // CHECK:STDOUT:     %ycopy.ref: ref @Compound4.%V.as_type.loc16_25.1 (%V.as_type) = name_ref ycopy, %ycopy
 // CHECK:STDOUT:     %L1.ref.loc19: type = name_ref L1, file.%L1.decl [concrete = constants.%L1.type]
 // CHECK:STDOUT:     %S1.ref: %L1.assoc_type = name_ref S1, @L1.%assoc1 [concrete = constants.%assoc1]
-// CHECK:STDOUT:     %impl.elem1.loc19_8.1: @Compound4.%.loc19_8 (%.e9a411.2) = impl_witness_access constants.%L1.lookup_impl_witness.0a136b.2, element1 [symbolic = %impl.elem1.loc19_8.2 (constants.%impl.elem1.a8c6e3.2)]
+// CHECK:STDOUT:     %impl.elem1.loc19_8.1: @Compound4.%.loc19_8 (%.9b5ba3.2) = impl_witness_access constants.%L1.lookup_impl_witness.d9f5df.2, element1 [symbolic = %impl.elem1.loc19_8.2 (constants.%impl.elem1.d07d0e.2)]
 // CHECK:STDOUT:     %bound_method.loc19_8: <bound method> = bound_method %ycopy.ref, %impl.elem1.loc19_8.1
-// CHECK:STDOUT:     %specific_impl_fn.loc19_8.1: <specific function> = specific_impl_function %impl.elem1.loc19_8.1, @L1.S1(constants.%L1.facet.ed78cc.2) [symbolic = %specific_impl_fn.loc19_8.2 (constants.%specific_impl_fn.bbb82e.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc19_8.1: <specific function> = specific_impl_function %impl.elem1.loc19_8.1, @L1.S1(constants.%L1.facet.1cc812.2) [symbolic = %specific_impl_fn.loc19_8.2 (constants.%specific_impl_fn.2473a0.2)]
 // CHECK:STDOUT:     %bound_method.loc19_17: <bound method> = bound_method %ycopy.ref, %specific_impl_fn.loc19_8.1
-// CHECK:STDOUT:     %addr.loc19: @Compound4.%ptr (%ptr.72f01d.3) = addr_of %ycopy.ref
+// CHECK:STDOUT:     %addr.loc19: @Compound4.%ptr (%ptr.87f2ee.3) = addr_of %ycopy.ref
 // CHECK:STDOUT:     %.loc19_17: init %empty_tuple.type = call %bound_method.loc19_17(%addr.loc19)
 // CHECK:STDOUT:     %V.as_type.loc18_3: type = facet_access_type constants.%V [symbolic = %V.as_type.loc16_25.1 (constants.%V.as_type)]
 // CHECK:STDOUT:     %.loc18_3.1: type = converted constants.%V, %V.as_type.loc18_3 [symbolic = %V.as_type.loc16_25.1 (constants.%V.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc18_3.1: @Compound4.%.loc18_3.3 (%.0f4deb.2) = impl_witness_access constants.%Destroy.lookup_impl_witness.87177a.2, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0.71dfa9.2)]
+// CHECK:STDOUT:     %impl.elem0.loc18_3.1: @Compound4.%.loc18_3.3 (%.acaa49.2) = impl_witness_access constants.%Destroy.lookup_impl_witness.c7977f.2, element0 [symbolic = %impl.elem0.loc18_3.2 (constants.%impl.elem0.b71e6c.2)]
 // CHECK:STDOUT:     %bound_method.loc18_3.1: <bound method> = bound_method %ycopy.var, %impl.elem0.loc18_3.1
-// CHECK:STDOUT:     %specific_impl_fn.loc18_3.1: <specific function> = specific_impl_function %impl.elem0.loc18_3.1, @Destroy.Op(constants.%Destroy.facet.a7da23.2) [symbolic = %specific_impl_fn.loc18_3.2 (constants.%specific_impl_fn.5803ed.2)]
+// CHECK:STDOUT:     %specific_impl_fn.loc18_3.1: <specific function> = specific_impl_function %impl.elem0.loc18_3.1, @Destroy.Op(constants.%Destroy.facet.f26842.2) [symbolic = %specific_impl_fn.loc18_3.2 (constants.%specific_impl_fn.21ccd1.2)]
 // CHECK:STDOUT:     %bound_method.loc18_3.2: <bound method> = bound_method %ycopy.var, %specific_impl_fn.loc18_3.1
-// CHECK:STDOUT:     %addr.loc18: @Compound4.%ptr (%ptr.72f01d.3) = addr_of %ycopy.var
+// CHECK:STDOUT:     %addr.loc18: @Compound4.%ptr (%ptr.87f2ee.3) = addr_of %ycopy.var
 // CHECK:STDOUT:     %.loc18_3.2: init %empty_tuple.type = call %bound_method.loc18_3.2(%addr.loc18)
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @L1.R1(constants.%Self.04c) {
-// CHECK:STDOUT:   %Self => constants.%Self.04c
-// CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%Self.as_type.759
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ad3e89.1
+// CHECK:STDOUT: specific @L1.R1(constants.%Self.112) {
+// CHECK:STDOUT:   %Self => constants.%Self.112
+// CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%Self.as_type.351
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4262.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @L1.S1(constants.%Self.04c) {
-// CHECK:STDOUT:   %Self => constants.%Self.04c
-// CHECK:STDOUT:   %Self.as_type.loc5_24.1 => constants.%Self.as_type.759
-// CHECK:STDOUT:   %ptr.loc5_24.1 => constants.%ptr.72f01d.1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.53384b.1
+// CHECK:STDOUT: specific @L1.S1(constants.%Self.112) {
+// CHECK:STDOUT:   %Self => constants.%Self.112
+// CHECK:STDOUT:   %Self.as_type.loc5_24.1 => constants.%Self.as_type.351
+// CHECK:STDOUT:   %ptr.loc5_24.1 => constants.%ptr.87f2ee.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c0652c.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Simple4(constants.%T.04c) {
-// CHECK:STDOUT:   %T.loc9_12.1 => constants.%T.04c
+// CHECK:STDOUT: specific @Simple4(constants.%T.112) {
+// CHECK:STDOUT:   %T.loc9_12.1 => constants.%T.112
 // CHECK:STDOUT:   %T.as_type.loc9_23.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ad3e89.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4262.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @L1.R1(constants.%L1.facet.ed78cc.1) {
-// CHECK:STDOUT:   %Self => constants.%L1.facet.ed78cc.1
+// CHECK:STDOUT: specific @L1.R1(constants.%L1.facet.1cc812.1) {
+// CHECK:STDOUT:   %Self => constants.%L1.facet.1cc812.1
 // CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ad3e89.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4262.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @L1.S1(constants.%L1.facet.ed78cc.1) {
-// CHECK:STDOUT:   %Self => constants.%L1.facet.ed78cc.1
+// CHECK:STDOUT: specific @L1.S1(constants.%L1.facet.1cc812.1) {
+// CHECK:STDOUT:   %Self => constants.%L1.facet.1cc812.1
 // CHECK:STDOUT:   %Self.as_type.loc5_24.1 => constants.%T.as_type
-// CHECK:STDOUT:   %ptr.loc5_24.1 => constants.%ptr.72f01d.2
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.53384b.2
+// CHECK:STDOUT:   %ptr.loc5_24.1 => constants.%ptr.87f2ee.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c0652c.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Compound4(constants.%V) {
 // CHECK:STDOUT:   %V.loc16_14.1 => constants.%V
 // CHECK:STDOUT:   %V.as_type.loc16_25.1 => constants.%V.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ad3e89.3
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4262.3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @L1.R1(constants.%L1.facet.ed78cc.2) {
-// CHECK:STDOUT:   %Self => constants.%L1.facet.ed78cc.2
+// CHECK:STDOUT: specific @L1.R1(constants.%L1.facet.1cc812.2) {
+// CHECK:STDOUT:   %Self => constants.%L1.facet.1cc812.2
 // CHECK:STDOUT:   %Self.as_type.loc4_15.1 => constants.%V.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ad3e89.3
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.cb4262.3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @L1.S1(constants.%L1.facet.ed78cc.2) {
-// CHECK:STDOUT:   %Self => constants.%L1.facet.ed78cc.2
+// CHECK:STDOUT: specific @L1.S1(constants.%L1.facet.1cc812.2) {
+// CHECK:STDOUT:   %Self => constants.%L1.facet.1cc812.2
 // CHECK:STDOUT:   %Self.as_type.loc5_24.1 => constants.%V.as_type
-// CHECK:STDOUT:   %ptr.loc5_24.1 => constants.%ptr.72f01d.3
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.53384b.3
+// CHECK:STDOUT:   %ptr.loc5_24.1 => constants.%ptr.87f2ee.3
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c0652c.3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_interface_instance_caller_not.carbon
@@ -1025,35 +1025,35 @@ fn Works() {
 // CHECK:STDOUT:   %L2.type: type = facet_type <@L2> [concrete]
 // CHECK:STDOUT:   %Self: %L2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.47b45b.1: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.238fea.1: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %L2.R2.type: type = fn_type @L2.R2 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %L2.R2: %L2.R2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %L2.assoc_type: type = assoc_entity_type @L2 [concrete]
 // CHECK:STDOUT:   %assoc0: %L2.assoc_type = assoc_entity element0, @L2.%L2.R2.decl [concrete]
-// CHECK:STDOUT:   %ptr.f3e54b.1: type = ptr_type %Self.as_type [symbolic]
-// CHECK:STDOUT:   %pattern_type.696b36.1: type = pattern_type %ptr.f3e54b.1 [symbolic]
+// CHECK:STDOUT:   %ptr.fb1cff.1: type = ptr_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.40020d.1: type = pattern_type %ptr.fb1cff.1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %L2.S2.type: type = fn_type @L2.S2 [concrete]
 // CHECK:STDOUT:   %L2.S2: %L2.S2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %L2.assoc_type = assoc_entity element1, @L2.%L2.S2.decl [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %L2.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.1c0: type = pattern_type %L2.type [concrete]
+// CHECK:STDOUT:   %pattern_type.9e9: type = pattern_type %L2.type [concrete]
 // CHECK:STDOUT:   %Simple5.type: type = fn_type @Simple5 [concrete]
 // CHECK:STDOUT:   %Simple5: %Simple5.type = struct_value () [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
 // CHECK:STDOUT:   %L2.lookup_impl_witness: <witness> = lookup_impl_witness %T, @L2 [symbolic]
 // CHECK:STDOUT:   %L2.facet: %L2.type = facet_value %T.as_type, (%L2.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.c42: type = fn_type_with_self_type %L2.R2.type, %L2.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.c42 = impl_witness_access %L2.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.47b45b.2: type = pattern_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.7ee: <specific function> = specific_impl_function %impl.elem0, @L2.R2(%L2.facet) [symbolic]
-// CHECK:STDOUT:   %.7f6: type = fn_type_with_self_type %L2.S2.type, %L2.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem1: %.7f6 = impl_witness_access %L2.lookup_impl_witness, element1 [symbolic]
-// CHECK:STDOUT:   %ptr.f3e54b.2: type = ptr_type %T.as_type [symbolic]
-// CHECK:STDOUT:   %pattern_type.696b36.2: type = pattern_type %ptr.f3e54b.2 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.b69: <specific function> = specific_impl_function %impl.elem1, @L2.S2(%L2.facet) [symbolic]
+// CHECK:STDOUT:   %.cc4: type = fn_type_with_self_type %L2.R2.type, %L2.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.cc4 = impl_witness_access %L2.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.238fea.2: type = pattern_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.b6b: <specific function> = specific_impl_function %impl.elem0, @L2.R2(%L2.facet) [symbolic]
+// CHECK:STDOUT:   %.c8d: type = fn_type_with_self_type %L2.S2.type, %L2.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem1: %.c8d = impl_witness_access %L2.lookup_impl_witness, element1 [symbolic]
+// CHECK:STDOUT:   %ptr.fb1cff.2: type = ptr_type %T.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.40020d.2: type = pattern_type %ptr.fb1cff.2 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.077: <specific function> = specific_impl_function %impl.elem1, @L2.S2(%L2.facet) [symbolic]
 // CHECK:STDOUT:   %V: %L2.type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %Compound5.type: type = fn_type @Compound5 [concrete]
 // CHECK:STDOUT:   %Compound5: %Compound5.type = struct_value () [concrete]
@@ -1076,7 +1076,7 @@ fn Works() {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %L2.decl: type = interface_decl @L2 [concrete = constants.%L2.type] {} {}
 // CHECK:STDOUT:   %Simple5.decl: %Simple5.type = fn_decl @Simple5 [concrete = constants.%Simple5] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.1c0 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.9e9 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc10: type = splice_block %L2.ref [concrete = constants.%L2.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1085,7 +1085,7 @@ fn Works() {
 // CHECK:STDOUT:     %T.loc10_12.2: %L2.type = bind_symbolic_name T, 0 [symbolic = %T.loc10_12.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Compound5.decl: %Compound5.type = fn_decl @Compound5 [concrete = constants.%Compound5] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.1c0 = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.9e9 = symbolic_binding_pattern V, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc30: type = splice_block %L2.ref.loc30 [concrete = constants.%L2.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -1098,8 +1098,8 @@ fn Works() {
 // CHECK:STDOUT: interface @L2 {
 // CHECK:STDOUT:   %Self: %L2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %L2.R2.decl: %L2.R2.type = fn_decl @L2.R2 [concrete = constants.%L2.R2] {
-// CHECK:STDOUT:     %self.patt: @L2.R2.%pattern_type (%pattern_type.47b45b.1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @L2.R2.%pattern_type (%pattern_type.47b45b.1) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @L2.R2.%pattern_type (%pattern_type.238fea.1) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @L2.R2.%pattern_type (%pattern_type.238fea.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @L2.R2.%Self.as_type.loc5_15.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_15.1: type = splice_block %.loc5_15.2 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)] {
@@ -1111,18 +1111,18 @@ fn Works() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %L2.assoc_type = assoc_entity element0, %L2.R2.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %L2.S2.decl: %L2.S2.type = fn_decl @L2.S2 [concrete = constants.%L2.S2] {
-// CHECK:STDOUT:     %self.patt: @L2.S2.%pattern_type (%pattern_type.696b36.1) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @L2.S2.%pattern_type (%pattern_type.696b36.1) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @L2.S2.%pattern_type (%pattern_type.40020d.1) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @L2.S2.%pattern_type (%pattern_type.40020d.1) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %.loc6_9: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @L2.S2.%ptr.loc6_24.1 (%ptr.f3e54b.1) = value_param call_param0
-// CHECK:STDOUT:     %.loc6_24.1: type = splice_block %ptr.loc6_24.2 [symbolic = %ptr.loc6_24.1 (constants.%ptr.f3e54b.1)] {
+// CHECK:STDOUT:     %self.param: @L2.S2.%ptr.loc6_24.1 (%ptr.fb1cff.1) = value_param call_param0
+// CHECK:STDOUT:     %.loc6_24.1: type = splice_block %ptr.loc6_24.2 [symbolic = %ptr.loc6_24.1 (constants.%ptr.fb1cff.1)] {
 // CHECK:STDOUT:       %Self.ref: %L2.type = name_ref Self, @L2.%Self [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:       %Self.as_type.loc6_24.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_24.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %.loc6_24.2: type = converted %Self.ref, %Self.as_type.loc6_24.2 [symbolic = %Self.as_type.loc6_24.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:       %ptr.loc6_24.2: type = ptr_type %.loc6_24.2 [symbolic = %ptr.loc6_24.1 (constants.%ptr.f3e54b.1)]
+// CHECK:STDOUT:       %ptr.loc6_24.2: type = ptr_type %.loc6_24.2 [symbolic = %ptr.loc6_24.1 (constants.%ptr.fb1cff.1)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @L2.S2.%ptr.loc6_24.1 (%ptr.f3e54b.1) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @L2.S2.%ptr.loc6_24.1 (%ptr.fb1cff.1) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc1: %L2.assoc_type = assoc_entity element1, %L2.S2.decl [concrete = constants.%assoc1]
 // CHECK:STDOUT:
@@ -1136,7 +1136,7 @@ fn Works() {
 // CHECK:STDOUT: generic fn @L2.R2(@L2.%Self: %L2.type) {
 // CHECK:STDOUT:   %Self: %L2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type (constants.%pattern_type.47b45b.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type (constants.%pattern_type.238fea.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @L2.R2.%Self.as_type.loc5_15.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -1144,10 +1144,10 @@ fn Works() {
 // CHECK:STDOUT: generic fn @L2.S2(@L2.%Self: %L2.type) {
 // CHECK:STDOUT:   %Self: %L2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc6_24.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_24.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %ptr.loc6_24.1: type = ptr_type %Self.as_type.loc6_24.1 [symbolic = %ptr.loc6_24.1 (constants.%ptr.f3e54b.1)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr.loc6_24.1 [symbolic = %pattern_type (constants.%pattern_type.696b36.1)]
+// CHECK:STDOUT:   %ptr.loc6_24.1: type = ptr_type %Self.as_type.loc6_24.1 [symbolic = %ptr.loc6_24.1 (constants.%ptr.fb1cff.1)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr.loc6_24.1 [symbolic = %pattern_type (constants.%pattern_type.40020d.1)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @L2.S2.%ptr.loc6_24.1 (%ptr.f3e54b.1));
+// CHECK:STDOUT:   fn(%self.param: @L2.S2.%ptr.loc6_24.1 (%ptr.fb1cff.1));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @Simple5(%T.loc10_12.2: %L2.type) {
@@ -1157,12 +1157,12 @@ fn Works() {
 // CHECK:STDOUT:   %T.as_type.loc18_4.2: type = facet_access_type %T.loc10_12.1 [symbolic = %T.as_type.loc18_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:   %L2.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc10_12.1, @L2 [symbolic = %L2.lookup_impl_witness (constants.%L2.lookup_impl_witness)]
 // CHECK:STDOUT:   %L2.facet: %L2.type = facet_value %T.as_type.loc18_4.2, (%L2.lookup_impl_witness) [symbolic = %L2.facet (constants.%L2.facet)]
-// CHECK:STDOUT:   %.loc18_4.2: type = fn_type_with_self_type constants.%L2.R2.type, %L2.facet [symbolic = %.loc18_4.2 (constants.%.c42)]
-// CHECK:STDOUT:   %impl.elem0.loc18_4.2: @Simple5.%.loc18_4.2 (%.c42) = impl_witness_access %L2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_4.2 (constants.%impl.elem0)]
-// CHECK:STDOUT:   %specific_impl_fn.loc18_4.2: <specific function> = specific_impl_function %impl.elem0.loc18_4.2, @L2.R2(%L2.facet) [symbolic = %specific_impl_fn.loc18_4.2 (constants.%specific_impl_fn.7ee)]
-// CHECK:STDOUT:   %.loc26_4.2: type = fn_type_with_self_type constants.%L2.S2.type, %L2.facet [symbolic = %.loc26_4.2 (constants.%.7f6)]
-// CHECK:STDOUT:   %impl.elem1.loc26_4.2: @Simple5.%.loc26_4.2 (%.7f6) = impl_witness_access %L2.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc26_4.2 (constants.%impl.elem1)]
-// CHECK:STDOUT:   %specific_impl_fn.loc26_4.2: <specific function> = specific_impl_function %impl.elem1.loc26_4.2, @L2.S2(%L2.facet) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.b69)]
+// CHECK:STDOUT:   %.loc18_4.2: type = fn_type_with_self_type constants.%L2.R2.type, %L2.facet [symbolic = %.loc18_4.2 (constants.%.cc4)]
+// CHECK:STDOUT:   %impl.elem0.loc18_4.2: @Simple5.%.loc18_4.2 (%.cc4) = impl_witness_access %L2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %specific_impl_fn.loc18_4.2: <specific function> = specific_impl_function %impl.elem0.loc18_4.2, @L2.R2(%L2.facet) [symbolic = %specific_impl_fn.loc18_4.2 (constants.%specific_impl_fn.b6b)]
+// CHECK:STDOUT:   %.loc26_4.2: type = fn_type_with_self_type constants.%L2.S2.type, %L2.facet [symbolic = %.loc26_4.2 (constants.%.c8d)]
+// CHECK:STDOUT:   %impl.elem1.loc26_4.2: @Simple5.%.loc26_4.2 (%.c8d) = impl_witness_access %L2.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc26_4.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:   %specific_impl_fn.loc26_4.2: <specific function> = specific_impl_function %impl.elem1.loc26_4.2, @L2.S2(%L2.facet) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.077)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
@@ -1170,15 +1170,15 @@ fn Works() {
 // CHECK:STDOUT:     %R2.ref: %L2.assoc_type = name_ref R2, @L2.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc18_4.1: type = facet_access_type %T.ref.loc18 [symbolic = %T.as_type.loc18_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc18_4.1: type = converted %T.ref.loc18, %T.as_type.loc18_4.1 [symbolic = %T.as_type.loc18_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc18_4.1: @Simple5.%.loc18_4.2 (%.c42) = impl_witness_access constants.%L2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_4.2 (constants.%impl.elem0)]
-// CHECK:STDOUT:     %specific_impl_fn.loc18_4.1: <specific function> = specific_impl_function %impl.elem0.loc18_4.1, @L2.R2(constants.%L2.facet) [symbolic = %specific_impl_fn.loc18_4.2 (constants.%specific_impl_fn.7ee)]
+// CHECK:STDOUT:     %impl.elem0.loc18_4.1: @Simple5.%.loc18_4.2 (%.cc4) = impl_witness_access constants.%L2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc18_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %specific_impl_fn.loc18_4.1: <specific function> = specific_impl_function %impl.elem0.loc18_4.1, @L2.R2(constants.%L2.facet) [symbolic = %specific_impl_fn.loc18_4.2 (constants.%specific_impl_fn.b6b)]
 // CHECK:STDOUT:     %.loc18_8: init %empty_tuple.type = call %specific_impl_fn.loc18_4.1(<error>) [concrete = <error>]
 // CHECK:STDOUT:     %T.ref.loc26: %L2.type = name_ref T, %T.loc10_12.2 [symbolic = %T.loc10_12.1 (constants.%T)]
 // CHECK:STDOUT:     %S2.ref: %L2.assoc_type = name_ref S2, @L2.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:     %T.as_type.loc26: type = facet_access_type %T.ref.loc26 [symbolic = %T.as_type.loc18_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc26_4.1: type = converted %T.ref.loc26, %T.as_type.loc26 [symbolic = %T.as_type.loc18_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem1.loc26_4.1: @Simple5.%.loc26_4.2 (%.7f6) = impl_witness_access constants.%L2.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc26_4.2 (constants.%impl.elem1)]
-// CHECK:STDOUT:     %specific_impl_fn.loc26_4.1: <specific function> = specific_impl_function %impl.elem1.loc26_4.1, @L2.S2(constants.%L2.facet) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.b69)]
+// CHECK:STDOUT:     %impl.elem1.loc26_4.1: @Simple5.%.loc26_4.2 (%.c8d) = impl_witness_access constants.%L2.lookup_impl_witness, element1 [symbolic = %impl.elem1.loc26_4.2 (constants.%impl.elem1)]
+// CHECK:STDOUT:     %specific_impl_fn.loc26_4.1: <specific function> = specific_impl_function %impl.elem1.loc26_4.1, @L2.S2(constants.%L2.facet) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.077)]
 // CHECK:STDOUT:     %addr: <error> = addr_of <error> [concrete = <error>]
 // CHECK:STDOUT:     %.loc26_8: init %empty_tuple.type = call %specific_impl_fn.loc26_4.1(<error>) [concrete = <error>]
 // CHECK:STDOUT:     return
@@ -1205,14 +1205,14 @@ fn Works() {
 // CHECK:STDOUT: specific @L2.R2(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.47b45b.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.238fea.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @L2.S2(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc6_24.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %ptr.loc6_24.1 => constants.%ptr.f3e54b.1
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.696b36.1
+// CHECK:STDOUT:   %ptr.loc6_24.1 => constants.%ptr.fb1cff.1
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.40020d.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Simple5(constants.%T) {
@@ -1222,14 +1222,14 @@ fn Works() {
 // CHECK:STDOUT: specific @L2.R2(constants.%L2.facet) {
 // CHECK:STDOUT:   %Self => constants.%L2.facet
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%T.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.47b45b.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.238fea.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @L2.S2(constants.%L2.facet) {
 // CHECK:STDOUT:   %Self => constants.%L2.facet
 // CHECK:STDOUT:   %Self.as_type.loc6_24.1 => constants.%T.as_type
-// CHECK:STDOUT:   %ptr.loc6_24.1 => constants.%ptr.f3e54b.2
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.696b36.2
+// CHECK:STDOUT:   %ptr.loc6_24.1 => constants.%ptr.fb1cff.2
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.40020d.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Compound5(constants.%V) {
@@ -1240,7 +1240,7 @@ fn Works() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self.31d: %A.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.907: %A.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %A.G.type: type = fn_type @A.G [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.G: %A.G.type = struct_value () [concrete]
@@ -1249,7 +1249,7 @@ fn Works() {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -1265,11 +1265,11 @@ fn Works() {
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %A.type, %type.as.BitAndWith.impl.Op [concrete]
@@ -1287,8 +1287,8 @@ fn Works() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1312,7 +1312,7 @@ fn Works() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.31d]
+// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.907]
 // CHECK:STDOUT:   %A.G.decl: %A.G.type = fn_decl @A.G [concrete = constants.%A.G] {} {}
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, %A.G.decl [concrete = constants.%assoc0.d52]
 // CHECK:STDOUT:
@@ -1350,7 +1350,7 @@ fn Works() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1379,7 +1379,7 @@ fn Works() {
 // CHECK:STDOUT:   %.loc22_7: ref %C = converted %.loc22_5.1, %.loc22_5.4
 // CHECK:STDOUT:   %A.ref.loc22_15: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc22_19: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc22: <bound method> = bound_method %A.ref.loc22_15, %impl.elem0.loc22 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc22: init type = call %bound_method.loc22(%A.ref.loc22_15, %A.ref.loc22_19) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %G.ref.loc22: %A.assoc_type = name_ref G, @A.%assoc0 [concrete = constants.%assoc0.d52]
@@ -1393,7 +1393,7 @@ fn Works() {
 // CHECK:STDOUT:   %C.ref.loc30_18: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %A.ref.loc30_24: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc30_28: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc30_26: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc30_26: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc30_26: <bound method> = bound_method %A.ref.loc30_24, %impl.elem0.loc30_26 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc30_26: init type = call %bound_method.loc30_26(%A.ref.loc30_24, %A.ref.loc30_28) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %.loc30_29.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc30_26 [concrete = constants.%A.type]
@@ -1404,7 +1404,7 @@ fn Works() {
 // CHECK:STDOUT:   %.loc30_30: type = converted %.loc30_20, %as_type.loc30 [concrete = constants.%C]
 // CHECK:STDOUT:   %A.ref.loc30_35: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc30_39: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc30_37: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc30_37: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc30_37: <bound method> = bound_method %A.ref.loc30_35, %impl.elem0.loc30_37 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc30_37: init type = call %bound_method.loc30_37(%A.ref.loc30_35, %A.ref.loc30_39) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %G.ref.loc30: %A.assoc_type = name_ref G, @A.%assoc0 [concrete = constants.%assoc0.d52]
@@ -1418,7 +1418,7 @@ fn Works() {
 // CHECK:STDOUT:   %C.ref.loc38_18: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %A.ref.loc38_24: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc38_28: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc38: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc38: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc38: <bound method> = bound_method %A.ref.loc38_24, %impl.elem0.loc38 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc38: init type = call %bound_method.loc38(%A.ref.loc38_24, %A.ref.loc38_28) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %.loc38_29.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc38 [concrete = constants.%A.type]
@@ -1442,7 +1442,7 @@ fn Works() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.G(constants.%Self.31d) {}
+// CHECK:STDOUT: specific @A.G(constants.%Self.907) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.G(constants.%A.facet) {}
 // CHECK:STDOUT:
@@ -1450,7 +1450,7 @@ fn Works() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self.31d: %A.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.907: %A.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %A.G.type: type = fn_type @A.G [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.G: %A.G.type = struct_value () [concrete]
@@ -1474,15 +1474,15 @@ fn Works() {
 // CHECK:STDOUT:   %Works: %Works.type = struct_value () [concrete]
 // CHECK:STDOUT:   %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
 // CHECK:STDOUT:   %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.b10: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.9a3: type = fn_type @BitAndWith.Op, @BitAndWith(type) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.2af: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet: %BitAndWith.type.b10 = facet_value type, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %BitAndWith.Op.type.9a3, %BitAndWith.facet [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.type: type = fn_type @type.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op: %type.as.BitAndWith.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.bound: <bound method> = bound_method %A.type, %type.as.BitAndWith.impl.Op [concrete]
-// CHECK:STDOUT:   %.e63: type = fn_type_with_self_type %A.G.type, %A.facet [concrete]
+// CHECK:STDOUT:   %.6b1: type = fn_type_with_self_type %A.G.type, %A.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1494,8 +1494,8 @@ fn Works() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
-// CHECK:STDOUT:   %Core.import_ref.012: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
-// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @type.as.BitAndWith.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.a4f: %type.as.BitAndWith.impl.Op.type = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.a4f), @type.as.BitAndWith.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1518,7 +1518,7 @@ fn Works() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.31d]
+// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.907]
 // CHECK:STDOUT:   %A.G.decl: %A.G.type = fn_decl @A.G [concrete = constants.%A.G] {} {}
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, %A.G.decl [concrete = constants.%assoc0.d52]
 // CHECK:STDOUT:
@@ -1580,18 +1580,18 @@ fn Works() {
 // CHECK:STDOUT:   %C.ref.loc13: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %A.ref.loc13_7: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc13_11: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc13_9: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc13_9: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc13: <bound method> = bound_method %A.ref.loc13_7, %impl.elem0.loc13_9 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc13: init type = call %bound_method.loc13(%A.ref.loc13_7, %A.ref.loc13_11) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %G.ref.loc13: %A.assoc_type = name_ref G, @A.%assoc0 [concrete = constants.%assoc0.d52]
 // CHECK:STDOUT:   %A.facet.loc13: %A.type = facet_value constants.%C, (constants.%A.impl_witness) [concrete = constants.%A.facet]
 // CHECK:STDOUT:   %.loc13: %A.type = converted %C.ref.loc13, %A.facet.loc13 [concrete = constants.%A.facet]
-// CHECK:STDOUT:   %impl.elem0.loc13_4: %.e63 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%C.as.A.impl.G]
+// CHECK:STDOUT:   %impl.elem0.loc13_4: %.6b1 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%C.as.A.impl.G]
 // CHECK:STDOUT:   %C.as.A.impl.G.call.loc13: init %empty_tuple.type = call %impl.elem0.loc13_4()
 // CHECK:STDOUT:   %C.ref.loc14: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %A.ref.loc14_10: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc14_14: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc14_12: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc14_12: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc14_12: <bound method> = bound_method %A.ref.loc14_10, %impl.elem0.loc14_12 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc14_12: init type = call %bound_method.loc14_12(%A.ref.loc14_10, %A.ref.loc14_14) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %.loc14_15.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc14_12 [concrete = constants.%A.type]
@@ -1600,16 +1600,16 @@ fn Works() {
 // CHECK:STDOUT:   %.loc14_6: %A.type = converted %C.ref.loc14, %A.facet.loc14 [concrete = constants.%A.facet]
 // CHECK:STDOUT:   %A.ref.loc14_20: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc14_24: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc14_22: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc14_22: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc14_22: <bound method> = bound_method %A.ref.loc14_20, %impl.elem0.loc14_22 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc14_22: init type = call %bound_method.loc14_22(%A.ref.loc14_20, %A.ref.loc14_24) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %G.ref.loc14: %A.assoc_type = name_ref G, @A.%assoc0 [concrete = constants.%assoc0.d52]
-// CHECK:STDOUT:   %impl.elem0.loc14_17: %.e63 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%C.as.A.impl.G]
+// CHECK:STDOUT:   %impl.elem0.loc14_17: %.6b1 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%C.as.A.impl.G]
 // CHECK:STDOUT:   %C.as.A.impl.G.call.loc14: init %empty_tuple.type = call %impl.elem0.loc14_17()
 // CHECK:STDOUT:   %C.ref.loc15: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %A.ref.loc15_10: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %A.ref.loc15_14: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
-// CHECK:STDOUT:   %impl.elem0.loc15_12: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0.loc15_12: %.b22 = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%type.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc15: <bound method> = bound_method %A.ref.loc15_10, %impl.elem0.loc15_12 [concrete = constants.%type.as.BitAndWith.impl.Op.bound]
 // CHECK:STDOUT:   %type.as.BitAndWith.impl.Op.call.loc15: init type = call %bound_method.loc15(%A.ref.loc15_10, %A.ref.loc15_14) [concrete = constants.%A.type]
 // CHECK:STDOUT:   %.loc15_15.1: type = value_of_initializer %type.as.BitAndWith.impl.Op.call.loc15 [concrete = constants.%A.type]
@@ -1618,12 +1618,12 @@ fn Works() {
 // CHECK:STDOUT:   %.loc15_6: %A.type = converted %C.ref.loc15, %A.facet.loc15 [concrete = constants.%A.facet]
 // CHECK:STDOUT:   %A.ref.loc15_19: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %G.ref.loc15: %A.assoc_type = name_ref G, @A.%assoc0 [concrete = constants.%assoc0.d52]
-// CHECK:STDOUT:   %impl.elem0.loc15_17: %.e63 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%C.as.A.impl.G]
+// CHECK:STDOUT:   %impl.elem0.loc15_17: %.6b1 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%C.as.A.impl.G]
 // CHECK:STDOUT:   %C.as.A.impl.G.call.loc15: init %empty_tuple.type = call %impl.elem0.loc15_17()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.G(constants.%Self.31d) {}
+// CHECK:STDOUT: specific @A.G(constants.%Self.907) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A.G(constants.%A.facet) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/default_fn.carbon b/toolchain/check/testdata/interface/default_fn.carbon
index b38b3e7c2c64..b1abb136b9f2 100644
--- a/toolchain/check/testdata/interface/default_fn.carbon
+++ b/toolchain/check/testdata/interface/default_fn.carbon
@@ -32,9 +32,9 @@ class C {
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.6ef: %I.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type.390: type = facet_access_type %Self.6ef [symbolic]
-// CHECK:STDOUT:   %pattern_type.b2f: type = pattern_type %Self.as_type.390 [symbolic]
+// CHECK:STDOUT:   %Self.48f: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type.77b: type = facet_access_type %Self.48f [symbolic]
+// CHECK:STDOUT:   %pattern_type.ad9: type = pattern_type %Self.as_type.77b [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
@@ -47,16 +47,16 @@ class C {
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %require_complete.8cb: <witness> = require_complete_type %Self.as_type.390 [symbolic]
+// CHECK:STDOUT:   %require_complete.50e: <witness> = require_complete_type %Self.as_type.77b [symbolic]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %.e5b: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.264: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -78,18 +78,18 @@ class C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6ef]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.48f]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.b2f) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.b2f) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.ad9) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.ad9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc18_16.1 (%Self.as_type.390) = value_param call_param0
-// CHECK:STDOUT:     %.loc18_16.1: type = splice_block %.loc18_16.2 [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.390)] {
-// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.6ef)]
-// CHECK:STDOUT:       %Self.as_type.loc18_16.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.390)]
-// CHECK:STDOUT:       %.loc18_16.2: type = converted %Self.ref, %Self.as_type.loc18_16.2 [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.390)]
+// CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc18_16.1 (%Self.as_type.77b) = value_param call_param0
+// CHECK:STDOUT:     %.loc18_16.1: type = splice_block %.loc18_16.2 [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.77b)] {
+// CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self.48f)]
+// CHECK:STDOUT:       %Self.as_type.loc18_16.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.77b)]
+// CHECK:STDOUT:       %.loc18_16.2: type = converted %Self.ref, %Self.as_type.loc18_16.2 [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.77b)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc18_16.1 (%Self.as_type.390) = bind_name self, %self.param
+// CHECK:STDOUT:     %self: @I.F.%Self.as_type.loc18_16.1 (%Self.as_type.77b) = bind_name self, %self.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0.a33]
 // CHECK:STDOUT:
@@ -143,7 +143,7 @@ class C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -154,14 +154,14 @@ class C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.6ef)]
-// CHECK:STDOUT:   %Self.as_type.loc18_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.390)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc18_16.1 [symbolic = %pattern_type (constants.%pattern_type.b2f)]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.48f)]
+// CHECK:STDOUT:   %Self.as_type.loc18_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc18_16.1 (constants.%Self.as_type.77b)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc18_16.1 [symbolic = %pattern_type (constants.%pattern_type.ad9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc18_16.1 [symbolic = %require_complete (constants.%require_complete.8cb)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc18_16.1 [symbolic = %require_complete (constants.%require_complete.50e)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc18_16.1 (%Self.as_type.390)) {
+// CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc18_16.1 (%Self.as_type.77b)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     name_binding_decl {
 // CHECK:STDOUT:       %c.patt: %pattern_type.c48 = binding_pattern c [concrete]
@@ -177,7 +177,7 @@ class C {
 // CHECK:STDOUT:     %c.ref: ref %C = name_ref c, %c
 // CHECK:STDOUT:     %I.ref: type = name_ref I, @C.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:     %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0.a33]
-// CHECK:STDOUT:     %impl.elem0: %.e5b = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
+// CHECK:STDOUT:     %impl.elem0: %.264 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
 // CHECK:STDOUT:     %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:     %.loc21: %C = bind_value %c.ref
 // CHECK:STDOUT:     %C.as.I.impl.F.call: init %empty_tuple.type = call %bound_method(%.loc21)
@@ -195,10 +195,10 @@ class C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.6ef) {
-// CHECK:STDOUT:   %Self => constants.%Self.6ef
-// CHECK:STDOUT:   %Self.as_type.loc18_16.1 => constants.%Self.as_type.390
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.b2f
+// CHECK:STDOUT: specific @I.F(constants.%Self.48f) {
+// CHECK:STDOUT:   %Self => constants.%Self.48f
+// CHECK:STDOUT:   %Self.as_type.loc18_16.1 => constants.%Self.as_type.77b
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ad9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F(constants.%I.facet) {
diff --git a/toolchain/check/testdata/interface/fail_add_member_outside_definition.carbon b/toolchain/check/testdata/interface/fail_add_member_outside_definition.carbon
index f1345f5a1d7d..f2f95884f7cb 100644
--- a/toolchain/check/testdata/interface/fail_add_member_outside_definition.carbon
+++ b/toolchain/check/testdata/interface/fail_add_member_outside_definition.carbon
@@ -40,17 +40,17 @@ interface Outer {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface> [concrete]
-// CHECK:STDOUT:   %Self.719: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4f1: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Interface.F.type: type = fn_type @Interface.F [concrete]
 // CHECK:STDOUT:   %Interface.F: %Interface.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Outer.type: type = facet_type <@Outer> [concrete]
-// CHECK:STDOUT:   %Self.277: %Outer.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%Self.277)> [symbolic]
-// CHECK:STDOUT:   %Self.b60: %Inner.type = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %Inner.F.type.82c77c.1: type = fn_type @Inner.F.loc30, @Inner(%Self.277) [symbolic]
-// CHECK:STDOUT:   %Inner.F.9789e2.1: %Inner.F.type.82c77c.1 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Inner.F.type.82c77c.2: type = fn_type @Inner.F.loc36, @Inner(%Self.277) [symbolic]
-// CHECK:STDOUT:   %Inner.F.9789e2.2: %Inner.F.type.82c77c.2 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Self.478: %Outer.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%Self.478)> [symbolic]
+// CHECK:STDOUT:   %Self.8f6: %Inner.type = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Inner.F.type.2c750a.1: type = fn_type @Inner.F.loc30, @Inner(%Self.478) [symbolic]
+// CHECK:STDOUT:   %Inner.F.91612b.1: %Inner.F.type.2c750a.1 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Inner.F.type.2c750a.2: type = fn_type @Inner.F.loc36, @Inner(%Self.478) [symbolic]
+// CHECK:STDOUT:   %Inner.F.91612b.2: %Inner.F.type.2c750a.2 = struct_value () [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -64,7 +64,7 @@ interface Outer {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -73,9 +73,9 @@ interface Outer {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Outer {
-// CHECK:STDOUT:   %Self: %Outer.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.277]
+// CHECK:STDOUT:   %Self: %Outer.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.478]
 // CHECK:STDOUT:   %Inner.decl: type = interface_decl @Inner [symbolic = constants.%Inner.type] {} {}
-// CHECK:STDOUT:   %Inner.F.decl: %Inner.F.type.82c77c.2 = fn_decl @Inner.F.loc36 [symbolic = constants.%Inner.F.9789e2.2] {} {}
+// CHECK:STDOUT:   %Inner.F.decl: %Inner.F.type.2c750a.2 = fn_decl @Inner.F.loc36 [symbolic = constants.%Inner.F.91612b.2] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -85,15 +85,15 @@ interface Outer {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic interface @Inner(@Outer.%Self: %Outer.type) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self.2: %Outer.type = bind_symbolic_name Self, 0 [symbolic = %Self.2 (constants.%Self.277)]
+// CHECK:STDOUT:   %Self.2: %Outer.type = bind_symbolic_name Self, 0 [symbolic = %Self.2 (constants.%Self.478)]
 // CHECK:STDOUT:   %Inner.type: type = facet_type <@Inner, @Inner(%Self.2)> [symbolic = %Inner.type (constants.%Inner.type)]
-// CHECK:STDOUT:   %Self.3: @Inner.%Inner.type (%Inner.type) = bind_symbolic_name Self, 1 [symbolic = %Self.3 (constants.%Self.b60)]
-// CHECK:STDOUT:   %Inner.F.type: type = fn_type @Inner.F.loc30, @Inner(%Self.2) [symbolic = %Inner.F.type (constants.%Inner.F.type.82c77c.1)]
-// CHECK:STDOUT:   %Inner.F: @Inner.%Inner.F.type (%Inner.F.type.82c77c.1) = struct_value () [symbolic = %Inner.F (constants.%Inner.F.9789e2.1)]
+// CHECK:STDOUT:   %Self.3: @Inner.%Inner.type (%Inner.type) = bind_symbolic_name Self, 1 [symbolic = %Self.3 (constants.%Self.8f6)]
+// CHECK:STDOUT:   %Inner.F.type: type = fn_type @Inner.F.loc30, @Inner(%Self.2) [symbolic = %Inner.F.type (constants.%Inner.F.type.2c750a.1)]
+// CHECK:STDOUT:   %Inner.F: @Inner.%Inner.F.type (%Inner.F.type.2c750a.1) = struct_value () [symbolic = %Inner.F (constants.%Inner.F.91612b.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Inner.%Inner.type (%Inner.type) = bind_symbolic_name Self, 1 [symbolic = %Self.3 (constants.%Self.b60)]
-// CHECK:STDOUT:     %Inner.F.decl: @Inner.%Inner.F.type (%Inner.F.type.82c77c.1) = fn_decl @Inner.F.loc30 [symbolic = @Inner.%Inner.F (constants.%Inner.F.9789e2.1)] {} {}
+// CHECK:STDOUT:     %Self.1: @Inner.%Inner.type (%Inner.type) = bind_symbolic_name Self, 1 [symbolic = %Self.3 (constants.%Self.8f6)]
+// CHECK:STDOUT:     %Inner.F.decl: @Inner.%Inner.F.type (%Inner.F.type.2c750a.1) = fn_decl @Inner.F.loc30 [symbolic = @Inner.%Inner.F (constants.%Inner.F.91612b.1)] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -119,18 +119,18 @@ interface Outer {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Interface.F(constants.%Self.719) {}
+// CHECK:STDOUT: specific @Interface.F(constants.%Self.4f1) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner(constants.%Self.277) {
+// CHECK:STDOUT: specific @Inner(constants.%Self.478) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self.2 => constants.%Self.277
+// CHECK:STDOUT:   %Self.2 => constants.%Self.478
 // CHECK:STDOUT:   %Inner.type => constants.%Inner.type
-// CHECK:STDOUT:   %Self.3 => constants.%Self.b60
-// CHECK:STDOUT:   %Inner.F.type => constants.%Inner.F.type.82c77c.1
-// CHECK:STDOUT:   %Inner.F => constants.%Inner.F.9789e2.1
+// CHECK:STDOUT:   %Self.3 => constants.%Self.8f6
+// CHECK:STDOUT:   %Inner.F.type => constants.%Inner.F.type.2c750a.1
+// CHECK:STDOUT:   %Inner.F => constants.%Inner.F.91612b.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F.loc30(constants.%Self.277, constants.%Self.b60) {}
+// CHECK:STDOUT: specific @Inner.F.loc30(constants.%Self.478, constants.%Self.8f6) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Inner.F.loc36(constants.%Self.277, constants.%Self.b60) {}
+// CHECK:STDOUT: specific @Inner.F.loc36(constants.%Self.478, constants.%Self.8f6) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/fail_assoc_const_alias.carbon b/toolchain/check/testdata/interface/fail_assoc_const_alias.carbon
index aab15ef69eb1..733f35523995 100644
--- a/toolchain/check/testdata/interface/fail_assoc_const_alias.carbon
+++ b/toolchain/check/testdata/interface/fail_assoc_const_alias.carbon
@@ -94,10 +94,10 @@ interface C {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.96f: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.96f = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.07f: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
-// CHECK:STDOUT:   %Self: %ImplicitAs.type.07f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.f40: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic]
+// CHECK:STDOUT:   %Self: %ImplicitAs.type.f40 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.a93: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.fb9: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %Dest [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert: %ImplicitAs.Convert.type = struct_value () [symbolic]
@@ -121,26 +121,26 @@ interface C {
 // CHECK:STDOUT:   %Dest.loc3_22.1: type = bind_symbolic_name Dest, 0 [symbolic = %Dest.loc3_22.1 (constants.%Dest)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest.loc3_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest.loc3_22.1)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self.2: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest.loc3_22.1) [symbolic = %ImplicitAs.Convert.type (constants.%ImplicitAs.Convert.type)]
 // CHECK:STDOUT:   %ImplicitAs.Convert: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type) = struct_value () [symbolic = %ImplicitAs.Convert (constants.%ImplicitAs.Convert)]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest.loc3_22.1) [symbolic = %ImplicitAs.assoc_type (constants.%ImplicitAs.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc4_35.2: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type) = assoc_entity element0, %ImplicitAs.Convert.decl [symbolic = %assoc0.loc4_35.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %ImplicitAs.Convert.decl: @ImplicitAs.%ImplicitAs.Convert.type (%ImplicitAs.Convert.type) = fn_decl @ImplicitAs.Convert [symbolic = @ImplicitAs.%ImplicitAs.Convert (constants.%ImplicitAs.Convert)] {
-// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.a93) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.a93) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.fb9) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_14 (%pattern_type.fb9) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %return.patt: @ImplicitAs.Convert.%pattern_type.loc4_28 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: @ImplicitAs.Convert.%pattern_type.loc4_28 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %Dest.ref: type = name_ref Dest, @ImplicitAs.%Dest.loc3_22.2 [symbolic = %Dest (constants.%Dest)]
 // CHECK:STDOUT:       %self.param: @ImplicitAs.Convert.%Self.as_type.loc4_20.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc4_20.1: type = splice_block %.loc4_20.3 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc4_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%Dest) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %.loc4_20.2: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = specific_constant @ImplicitAs.%Self.1, @ImplicitAs(constants.%Dest) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %Self.ref: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = name_ref Self, %.loc4_20.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:         %Self.as_type.loc4_20.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc4_20.3: type = converted %Self.ref, %Self.as_type.loc4_20.2 [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -158,12 +158,12 @@ interface C {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%Dest.loc3_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.07f)) {
+// CHECK:STDOUT: generic fn @ImplicitAs.Convert(@ImplicitAs.%Dest.loc3_22.2: type, @ImplicitAs.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.f40)) {
 // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.07f)]
-// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.07f) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(%Dest)> [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.f40)]
+// CHECK:STDOUT:   %Self: @ImplicitAs.Convert.%ImplicitAs.type (%ImplicitAs.type.f40) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc4_20.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc4_20.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc4_14: type = pattern_type %Self.as_type.loc4_20.1 [symbolic = %pattern_type.loc4_14 (constants.%pattern_type.a93)]
+// CHECK:STDOUT:   %pattern_type.loc4_14: type = pattern_type %Self.as_type.loc4_20.1 [symbolic = %pattern_type.loc4_14 (constants.%pattern_type.fb9)]
 // CHECK:STDOUT:   %pattern_type.loc4_28: type = pattern_type %Dest [symbolic = %pattern_type.loc4_28 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @ImplicitAs.Convert.%Self.as_type.loc4_20.1 (%Self.as_type)) -> @ImplicitAs.Convert.%Dest (%Dest);
@@ -175,10 +175,10 @@ interface C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @ImplicitAs.Convert(constants.%Dest, constants.%Self) {
 // CHECK:STDOUT:   %Dest => constants.%Dest
-// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.07f
+// CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.f40
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc4_20.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.loc4_14 => constants.%pattern_type.a93
+// CHECK:STDOUT:   %pattern_type.loc4_14 => constants.%pattern_type.fb9
 // CHECK:STDOUT:   %pattern_type.loc4_28 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -186,11 +186,11 @@ interface C {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.cd1: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %J.type: type = facet_type <@J> [concrete]
-// CHECK:STDOUT:   %Self.ccd: %J.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.212: %J.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %J.F.type: type = fn_type @J.F [concrete]
 // CHECK:STDOUT:   %J.F: %J.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
@@ -215,7 +215,7 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0.cd1]
 // CHECK:STDOUT:   }
@@ -227,7 +227,7 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J {
-// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ccd]
+// CHECK:STDOUT:   %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.212]
 // CHECK:STDOUT:   %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   %T.ref: %I.assoc_type = name_ref T, @T.%assoc0 [concrete = constants.%assoc0.cd1]
 // CHECK:STDOUT:   %U: %I.assoc_type = bind_alias U, @T.%assoc0 [concrete = constants.%assoc0.cd1]
@@ -257,37 +257,37 @@ interface C {
 // CHECK:STDOUT:   fn() -> <error>;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J.F(constants.%Self.ccd) {}
+// CHECK:STDOUT: specific @J.F(constants.%Self.212) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- alias_to_different_interface_with_requires.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I2.type: type = facet_type <@I2> [concrete]
-// CHECK:STDOUT:   %Self.c7b: %I2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.592: %I2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I2.assoc_type: type = assoc_entity_type @I2 [concrete]
 // CHECK:STDOUT:   %assoc0.25f: %I2.assoc_type = assoc_entity element0, @I2.%T2 [concrete]
 // CHECK:STDOUT:   %J2.type: type = facet_type <@J2> [concrete]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %V: %J2.type = bind_symbolic_name V, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f47: type = pattern_type %J2.type [concrete]
+// CHECK:STDOUT:   %pattern_type.4a3: type = pattern_type %J2.type [concrete]
 // CHECK:STDOUT:   %V.as_type: type = facet_access_type %V [symbolic]
-// CHECK:STDOUT:   %.Self.04c: %I2.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.04c [symbolic_self]
-// CHECK:STDOUT:   %I2.lookup_impl_witness.ebe: <witness> = lookup_impl_witness %.Self.04c, @I2 [symbolic_self]
-// CHECK:STDOUT:   %I2.facet.708: %I2.type = facet_value %.Self.as_type, (%I2.lookup_impl_witness.ebe) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.dde: type = impl_witness_access %I2.lookup_impl_witness.ebe, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.df2: %I2.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.df2 [symbolic_self]
+// CHECK:STDOUT:   %I2.lookup_impl_witness.85b: <witness> = lookup_impl_witness %.Self.df2, @I2 [symbolic_self]
+// CHECK:STDOUT:   %I2.facet.df5: %I2.type = facet_value %.Self.as_type, (%I2.lookup_impl_witness.85b) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.def: type = impl_witness_access %I2.lookup_impl_witness.85b, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %I2_where.type: type = facet_type <@I2 where %impl.elem0.dde = %empty_tuple.type> [concrete]
-// CHECK:STDOUT:   %I2.impl_witness.2ab13d.1: <witness> = impl_witness file.%I2.impl_witness_table, @V.as_type.as.I2.impl(%V) [symbolic]
-// CHECK:STDOUT:   %Self.541: %J2.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.541 [symbolic]
-// CHECK:STDOUT:   %I2.impl_witness.2ab13d.2: <witness> = impl_witness file.%I2.impl_witness_table, @V.as_type.as.I2.impl(%Self.541) [symbolic]
-// CHECK:STDOUT:   %I2.lookup_impl_witness.487: <witness> = lookup_impl_witness %Self.541, @I2 [symbolic]
-// CHECK:STDOUT:   %I2.facet.758: %I2.type = facet_value %Self.as_type, (%I2.lookup_impl_witness.487) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.7c7: type = impl_witness_access %I2.lookup_impl_witness.487, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f9d: type = pattern_type %impl.elem0.7c7 [symbolic]
+// CHECK:STDOUT:   %I2_where.type: type = facet_type <@I2 where %impl.elem0.def = %empty_tuple.type> [concrete]
+// CHECK:STDOUT:   %I2.impl_witness.57e8e8.1: <witness> = impl_witness file.%I2.impl_witness_table, @V.as_type.as.I2.impl(%V) [symbolic]
+// CHECK:STDOUT:   %Self.1dc: %J2.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.1dc [symbolic]
+// CHECK:STDOUT:   %I2.impl_witness.57e8e8.2: <witness> = impl_witness file.%I2.impl_witness_table, @V.as_type.as.I2.impl(%Self.1dc) [symbolic]
+// CHECK:STDOUT:   %I2.lookup_impl_witness.64c: <witness> = lookup_impl_witness %Self.1dc, @I2 [symbolic]
+// CHECK:STDOUT:   %I2.facet.f13: %I2.type = facet_value %Self.as_type, (%I2.lookup_impl_witness.64c) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.1f9: type = impl_witness_access %I2.lookup_impl_witness.64c, element0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.f77: type = pattern_type %impl.elem0.1f9 [symbolic]
 // CHECK:STDOUT:   %J2.F2.type: type = fn_type @J2.F2 [concrete]
 // CHECK:STDOUT:   %J2.F2: %J2.F2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %J2.assoc_type: type = assoc_entity_type @J2 [concrete]
@@ -310,18 +310,18 @@ interface C {
 // CHECK:STDOUT:   %I2.decl: type = interface_decl @I2 [concrete = constants.%I2.type] {} {}
 // CHECK:STDOUT:   %J2.decl.loc9: type = interface_decl @J2 [concrete = constants.%J2.type] {} {}
 // CHECK:STDOUT:   impl_decl @V.as_type.as.I2.impl [concrete] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.f47 = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.4a3 = symbolic_binding_pattern V, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %V.ref: %J2.type = name_ref V, %V.loc11_14.1 [symbolic = %V.loc11_14.2 (constants.%V)]
 // CHECK:STDOUT:     %V.as_type.loc11_22.1: type = facet_access_type %V.ref [symbolic = %V.as_type.loc11_22.2 (constants.%V.as_type)]
 // CHECK:STDOUT:     %.loc11_22: type = converted %V.ref, %V.as_type.loc11_22.1 [symbolic = %V.as_type.loc11_22.2 (constants.%V.as_type)]
 // CHECK:STDOUT:     %I2.ref: type = name_ref I2, file.%I2.decl [concrete = constants.%I2.type]
-// CHECK:STDOUT:     %.Self.1: %I2.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.04c]
-// CHECK:STDOUT:     %.Self.ref: %I2.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.04c]
+// CHECK:STDOUT:     %.Self.1: %I2.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.df2]
+// CHECK:STDOUT:     %.Self.ref: %I2.type = name_ref .Self, %.Self.1 [symbolic_self = constants.%.Self.df2]
 // CHECK:STDOUT:     %T2.ref: %I2.assoc_type = name_ref T2, @T2.%assoc0 [concrete = constants.%assoc0.25f]
 // CHECK:STDOUT:     %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:     %.loc11_36: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
-// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%I2.lookup_impl_witness.ebe, element0 [symbolic_self = constants.%impl.elem0.dde]
+// CHECK:STDOUT:     %impl.elem0: type = impl_witness_access constants.%I2.lookup_impl_witness.85b, element0 [symbolic_self = constants.%impl.elem0.def]
 // CHECK:STDOUT:     %.loc11_43.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc11_43.2: type = converted %.loc11_43.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:     %.loc11_30: type = where_expr %.Self.1 [concrete = constants.%I2_where.type] {
@@ -335,13 +335,13 @@ interface C {
 // CHECK:STDOUT:     %V.loc11_14.1: %J2.type = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.2 (constants.%V)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I2.impl_witness_table = impl_witness_table (%impl_witness_assoc_constant), @V.as_type.as.I2.impl [concrete]
-// CHECK:STDOUT:   %I2.impl_witness: <witness> = impl_witness %I2.impl_witness_table, @V.as_type.as.I2.impl(constants.%V) [symbolic = @V.as_type.as.I2.impl.%I2.impl_witness (constants.%I2.impl_witness.2ab13d.1)]
+// CHECK:STDOUT:   %I2.impl_witness: <witness> = impl_witness %I2.impl_witness_table, @V.as_type.as.I2.impl(constants.%V) [symbolic = @V.as_type.as.I2.impl.%I2.impl_witness (constants.%I2.impl_witness.57e8e8.1)]
 // CHECK:STDOUT:   %impl_witness_assoc_constant: type = impl_witness_assoc_constant constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %J2.decl.loc13: type = interface_decl @J2 [concrete = constants.%J2.type] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I2 {
-// CHECK:STDOUT:   %Self: %I2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.c7b]
+// CHECK:STDOUT:   %Self: %I2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.592]
 // CHECK:STDOUT:   %T2: type = assoc_const_decl @T2 [concrete] {
 // CHECK:STDOUT:     %assoc0: %I2.assoc_type = assoc_entity element0, @I2.%T2 [concrete = constants.%assoc0.25f]
 // CHECK:STDOUT:   }
@@ -353,28 +353,28 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @J2 {
-// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.541]
+// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1dc]
 // CHECK:STDOUT:   %I2.ref: type = name_ref I2, file.%I2.decl [concrete = constants.%I2.type]
 // CHECK:STDOUT:   %T2.ref: %I2.assoc_type = name_ref T2, @T2.%assoc0 [concrete = constants.%assoc0.25f]
 // CHECK:STDOUT:   %U2: %I2.assoc_type = bind_alias U2, @T2.%assoc0 [concrete = constants.%assoc0.25f]
 // CHECK:STDOUT:   %J2.F2.decl: %J2.F2.type = fn_decl @J2.F2 [concrete = constants.%J2.F2] {
-// CHECK:STDOUT:     %return.patt: @J2.F2.%pattern_type (%pattern_type.f9d) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @J2.F2.%pattern_type (%pattern_type.f9d) = out_param_pattern %return.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @J2.F2.%pattern_type (%pattern_type.f77) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @J2.F2.%pattern_type (%pattern_type.f77) = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %Self.as_type.loc15_14.2: type = facet_access_type constants.%Self.541 [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:     %.loc15_14.1: type = converted constants.%Self.541, %Self.as_type.loc15_14.2 [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:     %.loc15_14.2: %J2.type = converted %.loc15_14.1, constants.%Self.541 [symbolic = %Self (constants.%Self.541)]
-// CHECK:STDOUT:     %Self.as_type.loc15_14.3: type = facet_access_type constants.%Self.541 [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:     %I2.facet.loc15_14.2: %I2.type = facet_value %Self.as_type.loc15_14.3, (constants.%I2.lookup_impl_witness.487) [symbolic = %I2.facet.loc15_14.1 (constants.%I2.facet.758)]
-// CHECK:STDOUT:     %.loc15_14.3: %I2.type = converted @J2.%Self, %I2.facet.loc15_14.2 [symbolic = %I2.facet.loc15_14.1 (constants.%I2.facet.758)]
-// CHECK:STDOUT:     %impl.elem0.loc15_14.2: type = impl_witness_access constants.%I2.lookup_impl_witness.487, element0 [symbolic = %impl.elem0.loc15_14.1 (constants.%impl.elem0.7c7)]
-// CHECK:STDOUT:     %U2.ref: type = name_ref U2, %impl.elem0.loc15_14.2 [symbolic = %impl.elem0.loc15_14.1 (constants.%impl.elem0.7c7)]
-// CHECK:STDOUT:     %return.param: ref @J2.F2.%impl.elem0.loc15_14.1 (%impl.elem0.7c7) = out_param call_param0
-// CHECK:STDOUT:     %return: ref @J2.F2.%impl.elem0.loc15_14.1 (%impl.elem0.7c7) = return_slot %return.param
+// CHECK:STDOUT:     %Self.as_type.loc15_14.2: type = facet_access_type constants.%Self.1dc [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
+// CHECK:STDOUT:     %.loc15_14.1: type = converted constants.%Self.1dc, %Self.as_type.loc15_14.2 [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
+// CHECK:STDOUT:     %.loc15_14.2: %J2.type = converted %.loc15_14.1, constants.%Self.1dc [symbolic = %Self (constants.%Self.1dc)]
+// CHECK:STDOUT:     %Self.as_type.loc15_14.3: type = facet_access_type constants.%Self.1dc [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
+// CHECK:STDOUT:     %I2.facet.loc15_14.2: %I2.type = facet_value %Self.as_type.loc15_14.3, (constants.%I2.lookup_impl_witness.64c) [symbolic = %I2.facet.loc15_14.1 (constants.%I2.facet.f13)]
+// CHECK:STDOUT:     %.loc15_14.3: %I2.type = converted @J2.%Self, %I2.facet.loc15_14.2 [symbolic = %I2.facet.loc15_14.1 (constants.%I2.facet.f13)]
+// CHECK:STDOUT:     %impl.elem0.loc15_14.2: type = impl_witness_access constants.%I2.lookup_impl_witness.64c, element0 [symbolic = %impl.elem0.loc15_14.1 (constants.%impl.elem0.1f9)]
+// CHECK:STDOUT:     %U2.ref: type = name_ref U2, %impl.elem0.loc15_14.2 [symbolic = %impl.elem0.loc15_14.1 (constants.%impl.elem0.1f9)]
+// CHECK:STDOUT:     %return.param: ref @J2.F2.%impl.elem0.loc15_14.1 (%impl.elem0.1f9) = out_param call_param0
+// CHECK:STDOUT:     %return: ref @J2.F2.%impl.elem0.loc15_14.1 (%impl.elem0.1f9) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type constants.%Self.541 [symbolic = constants.%Self.as_type]
-// CHECK:STDOUT:   %.loc15_14.1: type = converted constants.%Self.541, %Self.as_type [symbolic = constants.%Self.as_type]
-// CHECK:STDOUT:   %.loc15_14.2: %J2.type = converted %.loc15_14.1, constants.%Self.541 [symbolic = constants.%Self.541]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type constants.%Self.1dc [symbolic = constants.%Self.as_type]
+// CHECK:STDOUT:   %.loc15_14.1: type = converted constants.%Self.1dc, %Self.as_type [symbolic = constants.%Self.as_type]
+// CHECK:STDOUT:   %.loc15_14.2: %J2.type = converted %.loc15_14.1, constants.%Self.1dc [symbolic = constants.%Self.1dc]
 // CHECK:STDOUT:   %assoc0: %J2.assoc_type = assoc_entity element0, %J2.F2.decl [concrete = constants.%assoc0.775]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -392,7 +392,7 @@ interface C {
 // CHECK:STDOUT: generic impl @V.as_type.as.I2.impl(%V.loc11_14.1: %J2.type) {
 // CHECK:STDOUT:   %V.loc11_14.2: %J2.type = bind_symbolic_name V, 0 [symbolic = %V.loc11_14.2 (constants.%V)]
 // CHECK:STDOUT:   %V.as_type.loc11_22.2: type = facet_access_type %V.loc11_14.2 [symbolic = %V.as_type.loc11_22.2 (constants.%V.as_type)]
-// CHECK:STDOUT:   %I2.impl_witness: <witness> = impl_witness file.%I2.impl_witness_table, @V.as_type.as.I2.impl(%V.loc11_14.2) [symbolic = %I2.impl_witness (constants.%I2.impl_witness.2ab13d.1)]
+// CHECK:STDOUT:   %I2.impl_witness: <witness> = impl_witness file.%I2.impl_witness_table, @V.as_type.as.I2.impl(%V.loc11_14.2) [symbolic = %I2.impl_witness (constants.%I2.impl_witness.57e8e8.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -403,59 +403,59 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @J2.F2(@J2.%Self: %J2.type) {
-// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.541)]
+// CHECK:STDOUT:   %Self: %J2.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1dc)]
 // CHECK:STDOUT:   %Self.as_type.loc15_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc15_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %I2.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @I2 [symbolic = %I2.lookup_impl_witness (constants.%I2.lookup_impl_witness.487)]
-// CHECK:STDOUT:   %I2.facet.loc15_14.1: %I2.type = facet_value %Self.as_type.loc15_14.1, (%I2.lookup_impl_witness) [symbolic = %I2.facet.loc15_14.1 (constants.%I2.facet.758)]
-// CHECK:STDOUT:   %impl.elem0.loc15_14.1: type = impl_witness_access %I2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc15_14.1 (constants.%impl.elem0.7c7)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc15_14.1 [symbolic = %pattern_type (constants.%pattern_type.f9d)]
+// CHECK:STDOUT:   %I2.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @I2 [symbolic = %I2.lookup_impl_witness (constants.%I2.lookup_impl_witness.64c)]
+// CHECK:STDOUT:   %I2.facet.loc15_14.1: %I2.type = facet_value %Self.as_type.loc15_14.1, (%I2.lookup_impl_witness) [symbolic = %I2.facet.loc15_14.1 (constants.%I2.facet.f13)]
+// CHECK:STDOUT:   %impl.elem0.loc15_14.1: type = impl_witness_access %I2.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc15_14.1 (constants.%impl.elem0.1f9)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc15_14.1 [symbolic = %pattern_type (constants.%pattern_type.f77)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn() -> @J2.F2.%impl.elem0.loc15_14.1 (%impl.elem0.7c7);
+// CHECK:STDOUT:   fn() -> @J2.F2.%impl.elem0.loc15_14.1 (%impl.elem0.1f9);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T2(constants.%Self.c7b) {}
+// CHECK:STDOUT: specific @T2(constants.%Self.592) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T2(constants.%I2.facet.708) {}
+// CHECK:STDOUT: specific @T2(constants.%I2.facet.df5) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @V.as_type.as.I2.impl(constants.%V) {
 // CHECK:STDOUT:   %V.loc11_14.2 => constants.%V
 // CHECK:STDOUT:   %V.as_type.loc11_22.2 => constants.%V.as_type
-// CHECK:STDOUT:   %I2.impl_witness => constants.%I2.impl_witness.2ab13d.1
+// CHECK:STDOUT:   %I2.impl_witness => constants.%I2.impl_witness.57e8e8.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @V.as_type.as.I2.impl(constants.%Self.541) {
-// CHECK:STDOUT:   %V.loc11_14.2 => constants.%Self.541
+// CHECK:STDOUT: specific @V.as_type.as.I2.impl(constants.%Self.1dc) {
+// CHECK:STDOUT:   %V.loc11_14.2 => constants.%Self.1dc
 // CHECK:STDOUT:   %V.as_type.loc11_22.2 => constants.%Self.as_type
-// CHECK:STDOUT:   %I2.impl_witness => constants.%I2.impl_witness.2ab13d.2
+// CHECK:STDOUT:   %I2.impl_witness => constants.%I2.impl_witness.57e8e8.2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T2(constants.%I2.facet.758) {}
+// CHECK:STDOUT: specific @T2(constants.%I2.facet.f13) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @J2.F2(constants.%Self.541) {
-// CHECK:STDOUT:   %Self => constants.%Self.541
+// CHECK:STDOUT: specific @J2.F2(constants.%Self.1dc) {
+// CHECK:STDOUT:   %Self => constants.%Self.1dc
 // CHECK:STDOUT:   %Self.as_type.loc15_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %I2.lookup_impl_witness => constants.%I2.lookup_impl_witness.487
-// CHECK:STDOUT:   %I2.facet.loc15_14.1 => constants.%I2.facet.758
-// CHECK:STDOUT:   %impl.elem0.loc15_14.1 => constants.%impl.elem0.7c7
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f9d
+// CHECK:STDOUT:   %I2.lookup_impl_witness => constants.%I2.lookup_impl_witness.64c
+// CHECK:STDOUT:   %I2.facet.loc15_14.1 => constants.%I2.facet.f13
+// CHECK:STDOUT:   %impl.elem0.loc15_14.1 => constants.%impl.elem0.1f9
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f77
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_call_method_alias.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self.31d: %A.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.31d [symbolic]
-// CHECK:STDOUT:   %pattern_type.f98: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.907: %A.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.907 [symbolic]
+// CHECK:STDOUT:   %pattern_type.6c3: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %A.F.type: type = fn_type @A.F [concrete]
 // CHECK:STDOUT:   %A.F: %A.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A [concrete]
 // CHECK:STDOUT:   %assoc0.2e6: %A.assoc_type = assoc_entity element0, @A.%A.F.decl [concrete]
 // CHECK:STDOUT:   %B.type: type = facet_type <@B> [concrete]
-// CHECK:STDOUT:   %Self.783: %B.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.284: %B.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %B.G.type: type = fn_type @B.G [concrete]
 // CHECK:STDOUT:   %B.G: %B.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %B.assoc_type: type = assoc_entity_type @B [concrete]
@@ -480,16 +480,16 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.31d]
+// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.907]
 // CHECK:STDOUT:   %A.F.decl: %A.F.type = fn_decl @A.F [concrete = constants.%A.F] {
-// CHECK:STDOUT:     %self.patt: @A.F.%pattern_type (%pattern_type.f98) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @A.F.%pattern_type (%pattern_type.f98) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @A.F.%pattern_type (%pattern_type.6c3) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @A.F.%pattern_type (%pattern_type.6c3) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.98f = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.98f = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @A.F.%Self.as_type.loc6_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc6_14.1: type = splice_block %.loc6_14.2 [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:       %Self.ref: %A.type = name_ref Self, @A.%Self [symbolic = %Self (constants.%Self.31d)]
+// CHECK:STDOUT:       %Self.ref: %A.type = name_ref Self, @A.%Self [symbolic = %Self (constants.%Self.907)]
 // CHECK:STDOUT:       %Self.as_type.loc6_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %.loc6_14.2: type = converted %Self.ref, %Self.as_type.loc6_14.2 [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     }
@@ -506,7 +506,7 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @B {
-// CHECK:STDOUT:   %Self: %B.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.783]
+// CHECK:STDOUT:   %Self: %B.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.284]
 // CHECK:STDOUT:   %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:   %F.ref: %A.assoc_type = name_ref F, @A.%assoc0 [concrete = constants.%assoc0.2e6]
 // CHECK:STDOUT:   %F: %A.assoc_type = bind_alias F, @A.%assoc0 [concrete = constants.%assoc0.2e6]
@@ -529,9 +529,9 @@ interface C {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @A.F(@A.%Self: %A.type) {
-// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.31d)]
+// CHECK:STDOUT:   %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.907)]
 // CHECK:STDOUT:   %Self.as_type.loc6_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc6_14.1 [symbolic = %pattern_type (constants.%pattern_type.f98)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc6_14.1 [symbolic = %pattern_type (constants.%pattern_type.6c3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @A.F.%Self.as_type.loc6_14.1 (%Self.as_type)) -> type;
 // CHECK:STDOUT: }
@@ -540,13 +540,13 @@ interface C {
 // CHECK:STDOUT:   fn() -> <error>;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%Self.31d) {
-// CHECK:STDOUT:   %Self => constants.%Self.31d
+// CHECK:STDOUT: specific @A.F(constants.%Self.907) {
+// CHECK:STDOUT:   %Self => constants.%Self.907
 // CHECK:STDOUT:   %Self.as_type.loc6_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.f98
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6c3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @B.G(constants.%Self.783) {}
+// CHECK:STDOUT: specific @B.G(constants.%Self.284) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- call_with_compound_member_access.carbon
 // CHECK:STDOUT:
@@ -566,8 +566,8 @@ interface C {
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %C.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @C [symbolic]
 // CHECK:STDOUT:   %C.facet: %C.type = facet_value %Self.as_type, (%C.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.54d: type = fn_type_with_self_type %C.F.type, %C.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.54d = impl_witness_access %C.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %.1d6: type = fn_type_with_self_type %C.F.type, %C.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.1d6 = impl_witness_access %C.lookup_impl_witness, element0 [symbolic]
 // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @C.F(%C.facet) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -639,8 +639,8 @@ interface C {
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc8_14.1 [symbolic = %require_complete (constants.%require_complete)]
 // CHECK:STDOUT:   %C.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @C [symbolic = %C.lookup_impl_witness (constants.%C.lookup_impl_witness)]
 // CHECK:STDOUT:   %C.facet: %C.type = facet_value %Self.as_type.loc8_14.1, (%C.lookup_impl_witness) [symbolic = %C.facet (constants.%C.facet)]
-// CHECK:STDOUT:   %.loc9_9.2: type = fn_type_with_self_type constants.%C.F.type, %C.facet [symbolic = %.loc9_9.2 (constants.%.54d)]
-// CHECK:STDOUT:   %impl.elem0.loc9_9.2: @C.G.%.loc9_9.2 (%.54d) = impl_witness_access %C.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc9_9.2: type = fn_type_with_self_type constants.%C.F.type, %C.facet [symbolic = %.loc9_9.2 (constants.%.1d6)]
+// CHECK:STDOUT:   %impl.elem0.loc9_9.2: @C.G.%.loc9_9.2 (%.1d6) = impl_witness_access %C.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %specific_impl_fn.loc9_9.2: <specific function> = specific_impl_function %impl.elem0.loc9_9.2, @C.F(%C.facet) [symbolic = %specific_impl_fn.loc9_9.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @C.G.%Self.as_type.loc8_14.1 (%Self.as_type)) {
@@ -649,14 +649,14 @@ interface C {
 // CHECK:STDOUT:     %F.ref.loc9: %C.assoc_type = name_ref F, @C.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %Self.as_type.loc9: type = facet_access_type constants.%Self [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     %.loc9_9.1: type = converted constants.%Self, %Self.as_type.loc9 [symbolic = %Self.as_type.loc8_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc9_9.1: @C.G.%.loc9_9.2 (%.54d) = impl_witness_access constants.%C.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc9_9.1: @C.G.%.loc9_9.2 (%.1d6) = impl_witness_access constants.%C.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc9_9: <bound method> = bound_method %self.ref.loc9, %impl.elem0.loc9_9.1
 // CHECK:STDOUT:     %specific_impl_fn.loc9_9.1: <specific function> = specific_impl_function %impl.elem0.loc9_9.1, @C.F(constants.%C.facet) [symbolic = %specific_impl_fn.loc9_9.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc9_12: <bound method> = bound_method %self.ref.loc9, %specific_impl_fn.loc9_9.1
 // CHECK:STDOUT:     %.loc9_12: init %empty_tuple.type = call %bound_method.loc9_12(%self.ref.loc9)
 // CHECK:STDOUT:     %self.ref.loc10: @C.G.%Self.as_type.loc8_14.1 (%Self.as_type) = name_ref self, %self
-// CHECK:STDOUT:     %impl.elem0.loc10: @C.G.%.loc9_9.2 (%.54d) = impl_witness_access constants.%C.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
-// CHECK:STDOUT:     %F.ref.loc10: @C.G.%.loc9_9.2 (%.54d) = name_ref F, %impl.elem0.loc10 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc10: @C.G.%.loc9_9.2 (%.1d6) = impl_witness_access constants.%C.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %F.ref.loc10: @C.G.%.loc9_9.2 (%.1d6) = name_ref F, %impl.elem0.loc10 [symbolic = %impl.elem0.loc9_9.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %bound_method.loc10_9: <bound method> = bound_method %self.ref.loc10, %F.ref.loc10
 // CHECK:STDOUT:     %specific_impl_fn.loc10: <specific function> = specific_impl_function %F.ref.loc10, @C.F(constants.%C.facet) [symbolic = %specific_impl_fn.loc9_9.2 (constants.%specific_impl_fn)]
 // CHECK:STDOUT:     %bound_method.loc10_14: <bound method> = bound_method %self.ref.loc10, %specific_impl_fn.loc10
diff --git a/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon b/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon
index 34da3cb62add..ad3831872ea2 100644
--- a/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon
+++ b/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon
@@ -27,7 +27,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.cd1: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %int_42: Core.IntLiteral = int_value 42 [concrete]
@@ -54,7 +54,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0.cd1]
 // CHECK:STDOUT:     %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42]
@@ -73,5 +73,5 @@ interface I {
 // CHECK:STDOUT:   assoc_const T:! type = <error>;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/fail_assoc_fn_invalid_use.carbon b/toolchain/check/testdata/interface/fail_assoc_fn_invalid_use.carbon
index 538599c6c219..ab74271fd1cd 100644
--- a/toolchain/check/testdata/interface/fail_assoc_fn_invalid_use.carbon
+++ b/toolchain/check/testdata/interface/fail_assoc_fn_invalid_use.carbon
@@ -34,22 +34,22 @@ fn Use(T:! I) {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.6de: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.802: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %I.type [concrete]
+// CHECK:STDOUT:   %pattern_type.71c: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT:   %Use.type: type = fn_type @Use [concrete]
 // CHECK:STDOUT:   %Use: %Use.type = struct_value () [concrete]
 // CHECK:STDOUT:   %T.as_type: type = facet_access_type %T [symbolic]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type, (%I.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.ee1: type = fn_type_with_self_type %I.F.type, %I.facet [symbolic]
-// CHECK:STDOUT:   %impl.elem0: %.ee1 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %.ee1 [symbolic]
+// CHECK:STDOUT:   %.f60: type = fn_type_with_self_type %I.F.type, %I.facet [symbolic]
+// CHECK:STDOUT:   %impl.elem0: %.f60 = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %.f60 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -59,7 +59,7 @@ fn Use(T:! I) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
 // CHECK:STDOUT:   %Use.decl: %Use.type = fn_decl @Use [concrete = constants.%Use] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.2b5 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.71c = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc8: type = splice_block %I.ref [concrete = constants.%I.type] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -72,8 +72,8 @@ fn Use(T:! I) {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.6de) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.6de) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.802) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.802) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc5_14.1: type = splice_block %.loc5_14.2 [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)] {
@@ -94,7 +94,7 @@ fn Use(T:! I) {
 // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.6de)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc5_14.1 [symbolic = %pattern_type (constants.%pattern_type.802)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @I.F.%Self.as_type.loc5_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -106,8 +106,8 @@ fn Use(T:! I) {
 // CHECK:STDOUT:   %T.as_type.loc13_4.2: type = facet_access_type %T.loc8_8.1 [symbolic = %T.as_type.loc13_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc8_8.1, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %T.as_type.loc13_4.2, (%I.lookup_impl_witness) [symbolic = %I.facet (constants.%I.facet)]
-// CHECK:STDOUT:   %.loc13_4.2: type = fn_type_with_self_type constants.%I.F.type, %I.facet [symbolic = %.loc13_4.2 (constants.%.ee1)]
-// CHECK:STDOUT:   %impl.elem0.loc13_4.2: @Use.%.loc13_4.2 (%.ee1) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:   %.loc13_4.2: type = fn_type_with_self_type constants.%I.F.type, %I.facet [symbolic = %.loc13_4.2 (constants.%.f60)]
+// CHECK:STDOUT:   %impl.elem0.loc13_4.2: @Use.%.loc13_4.2 (%.f60) = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %.loc13_4.2 [symbolic = %require_complete (constants.%require_complete)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -116,7 +116,7 @@ fn Use(T:! I) {
 // CHECK:STDOUT:     %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:     %T.as_type.loc13_4.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc13_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc13_4.1: type = converted %T.ref, %T.as_type.loc13_4.1 [symbolic = %T.as_type.loc13_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc13_4.1: @Use.%.loc13_4.2 (%.ee1) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_4.2 (constants.%impl.elem0)]
+// CHECK:STDOUT:     %impl.elem0.loc13_4.1: @Use.%.loc13_4.2 (%.f60) = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_4.2 (constants.%impl.elem0)]
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -124,7 +124,7 @@ fn Use(T:! I) {
 // CHECK:STDOUT: specific @I.F(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.6de
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.802
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Use(constants.%T) {
diff --git a/toolchain/check/testdata/interface/fail_definition_imported.carbon b/toolchain/check/testdata/interface/fail_definition_imported.carbon
index 825ffc1083f0..2e0a8ea36c47 100644
--- a/toolchain/check/testdata/interface/fail_definition_imported.carbon
+++ b/toolchain/check/testdata/interface/fail_definition_imported.carbon
@@ -51,13 +51,13 @@ interface I {}
 // CHECK:STDOUT: --- fail_b.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %I.type.733a85.1: type = facet_type <@I.1> [concrete]
-// CHECK:STDOUT:   %I.type.733a85.2: type = facet_type <@I.loc13> [concrete]
-// CHECK:STDOUT:   %Self: %I.type.733a85.2 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %I.type.950fc2.1: type = facet_type <@I.1> [concrete]
+// CHECK:STDOUT:   %I.type.950fc2.2: type = facet_type <@I.loc13> [concrete]
+// CHECK:STDOUT:   %Self: %I.type.950fc2.2 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Main.I: type = import_ref Main//a, I, loaded [concrete = constants.%I.type.733a85.1]
+// CHECK:STDOUT:   %Main.I: type = import_ref Main//a, I, loaded [concrete = constants.%I.type.950fc2.1]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -65,13 +65,13 @@ interface I {}
 // CHECK:STDOUT:     .I = imports.%Main.I
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import = import <none>
-// CHECK:STDOUT:   %I.decl: type = interface_decl @I.loc13 [concrete = constants.%I.type.733a85.2] {} {}
+// CHECK:STDOUT:   %I.decl: type = interface_decl @I.loc13 [concrete = constants.%I.type.950fc2.2] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I.1 [from "a.carbon"];
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I.loc13 {
-// CHECK:STDOUT:   %Self: %I.type.733a85.2 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Self: %I.type.950fc2.2 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/fail_duplicate.carbon b/toolchain/check/testdata/interface/fail_duplicate.carbon
index 6edb87e3e6e3..1a3171e986b5 100644
--- a/toolchain/check/testdata/interface/fail_duplicate.carbon
+++ b/toolchain/check/testdata/interface/fail_duplicate.carbon
@@ -77,10 +77,10 @@ interface Class { }
 // CHECK:STDOUT: --- fail_redefine_without_dependents.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %Interface.type.d726c6.1: type = facet_type <@Interface.loc4> [concrete]
-// CHECK:STDOUT:   %Self.719cbb.1: %Interface.type.d726c6.1 = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Interface.type.d726c6.2: type = facet_type <@Interface.loc13> [concrete]
-// CHECK:STDOUT:   %Self.719cbb.2: %Interface.type.d726c6.2 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Interface.type.959789.1: type = facet_type <@Interface.loc4> [concrete]
+// CHECK:STDOUT:   %Self.4f1d1f.1: %Interface.type.959789.1 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Interface.type.959789.2: type = facet_type <@Interface.loc13> [concrete]
+// CHECK:STDOUT:   %Self.4f1d1f.2: %Interface.type.959789.2 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Interface.F.type: type = fn_type @Interface.F [concrete]
 // CHECK:STDOUT:   %Interface.F: %Interface.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Interface.assoc_type: type = assoc_entity_type @Interface.loc13 [concrete]
@@ -91,12 +91,12 @@ interface Class { }
 // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
 // CHECK:STDOUT:     .Interface = %Interface.decl.loc4
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Interface.decl.loc4: type = interface_decl @Interface.loc4 [concrete = constants.%Interface.type.d726c6.1] {} {}
-// CHECK:STDOUT:   %Interface.decl.loc13: type = interface_decl @Interface.loc13 [concrete = constants.%Interface.type.d726c6.2] {} {}
+// CHECK:STDOUT:   %Interface.decl.loc4: type = interface_decl @Interface.loc4 [concrete = constants.%Interface.type.959789.1] {} {}
+// CHECK:STDOUT:   %Interface.decl.loc13: type = interface_decl @Interface.loc13 [concrete = constants.%Interface.type.959789.2] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface.loc4 {
-// CHECK:STDOUT:   %Self: %Interface.type.d726c6.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719cbb.1]
+// CHECK:STDOUT:   %Self: %Interface.type.959789.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1d1f.1]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -104,7 +104,7 @@ interface Class { }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface.loc13 {
-// CHECK:STDOUT:   %Self: %Interface.type.d726c6.2 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719cbb.2]
+// CHECK:STDOUT:   %Self: %Interface.type.959789.2 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1d1f.2]
 // CHECK:STDOUT:   %Interface.F.decl: %Interface.F.type = fn_decl @Interface.F [concrete = constants.%Interface.F] {} {}
 // CHECK:STDOUT:   %assoc0: %Interface.assoc_type = assoc_entity element0, %Interface.F.decl [concrete = constants.%assoc0]
 // CHECK:STDOUT:
@@ -114,20 +114,20 @@ interface Class { }
 // CHECK:STDOUT:   witness = (%Interface.F.decl)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Interface.F(@Interface.loc13.%Self: %Interface.type.d726c6.2) {
+// CHECK:STDOUT: generic fn @Interface.F(@Interface.loc13.%Self: %Interface.type.959789.2) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Interface.F(constants.%Self.719cbb.2) {}
+// CHECK:STDOUT: specific @Interface.F(constants.%Self.4f1d1f.2) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_redefine_with_dependents.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %Interface.type.d726c6.1: type = facet_type <@Interface.loc4> [concrete]
-// CHECK:STDOUT:   %Self.719cbb.1: %Interface.type.d726c6.1 = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Interface.type.d726c6.2: type = facet_type <@Interface.loc13> [concrete]
-// CHECK:STDOUT:   %Self.719cbb.2: %Interface.type.d726c6.2 = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.719cbb.2 [symbolic]
+// CHECK:STDOUT:   %Interface.type.959789.1: type = facet_type <@Interface.loc4> [concrete]
+// CHECK:STDOUT:   %Self.4f1d1f.1: %Interface.type.959789.1 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Interface.type.959789.2: type = facet_type <@Interface.loc13> [concrete]
+// CHECK:STDOUT:   %Self.4f1d1f.2: %Interface.type.959789.2 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.4f1d1f.2 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %Interface.F.type: type = fn_type @Interface.F [concrete]
 // CHECK:STDOUT:   %Interface.F: %Interface.F.type = struct_value () [concrete]
@@ -139,12 +139,12 @@ interface Class { }
 // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
 // CHECK:STDOUT:     .Interface = %Interface.decl.loc4
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Interface.decl.loc4: type = interface_decl @Interface.loc4 [concrete = constants.%Interface.type.d726c6.1] {} {}
-// CHECK:STDOUT:   %Interface.decl.loc13: type = interface_decl @Interface.loc13 [concrete = constants.%Interface.type.d726c6.2] {} {}
+// CHECK:STDOUT:   %Interface.decl.loc4: type = interface_decl @Interface.loc4 [concrete = constants.%Interface.type.959789.1] {} {}
+// CHECK:STDOUT:   %Interface.decl.loc13: type = interface_decl @Interface.loc13 [concrete = constants.%Interface.type.959789.2] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface.loc4 {
-// CHECK:STDOUT:   %Self: %Interface.type.d726c6.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719cbb.1]
+// CHECK:STDOUT:   %Self: %Interface.type.959789.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1d1f.1]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -152,14 +152,14 @@ interface Class { }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface.loc13 {
-// CHECK:STDOUT:   %Self: %Interface.type.d726c6.2 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719cbb.2]
+// CHECK:STDOUT:   %Self: %Interface.type.959789.2 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1d1f.2]
 // CHECK:STDOUT:   %Interface.F.decl: %Interface.F.type = fn_decl @Interface.F [concrete = constants.%Interface.F] {
 // CHECK:STDOUT:     %self.patt: @Interface.F.%pattern_type (%pattern_type) = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: @Interface.F.%pattern_type (%pattern_type) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @Interface.F.%Self.as_type.loc14_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc14_14.1: type = splice_block %.loc14_14.2 [symbolic = %Self.as_type.loc14_14.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:       %Self.ref: %Interface.type.d726c6.2 = name_ref Self, @Interface.loc13.%Self [symbolic = %Self (constants.%Self.719cbb.2)]
+// CHECK:STDOUT:       %Self.ref: %Interface.type.959789.2 = name_ref Self, @Interface.loc13.%Self [symbolic = %Self (constants.%Self.4f1d1f.2)]
 // CHECK:STDOUT:       %Self.as_type.loc14_14.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc14_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %.loc14_14.2: type = converted %Self.ref, %Self.as_type.loc14_14.2 [symbolic = %Self.as_type.loc14_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     }
@@ -173,16 +173,16 @@ interface Class { }
 // CHECK:STDOUT:   witness = (%Interface.F.decl)
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Interface.F(@Interface.loc13.%Self: %Interface.type.d726c6.2) {
-// CHECK:STDOUT:   %Self: %Interface.type.d726c6.2 = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.719cbb.2)]
+// CHECK:STDOUT: generic fn @Interface.F(@Interface.loc13.%Self: %Interface.type.959789.2) {
+// CHECK:STDOUT:   %Self: %Interface.type.959789.2 = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.4f1d1f.2)]
 // CHECK:STDOUT:   %Self.as_type.loc14_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc14_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc14_14.1 [symbolic = %pattern_type (constants.%pattern_type)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @Interface.F.%Self.as_type.loc14_14.1 (%Self.as_type));
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Interface.F(constants.%Self.719cbb.2) {
-// CHECK:STDOUT:   %Self => constants.%Self.719cbb.2
+// CHECK:STDOUT: specific @Interface.F(constants.%Self.4f1d1f.2) {
+// CHECK:STDOUT:   %Self => constants.%Self.4f1d1f.2
 // CHECK:STDOUT:   %Self.as_type.loc14_14.1 => constants.%Self.as_type
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type
 // CHECK:STDOUT: }
@@ -192,7 +192,7 @@ interface Class { }
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Function.type.b14: type = fn_type @Function.loc4 [concrete]
 // CHECK:STDOUT:   %Function: %Function.type.b14 = struct_value () [concrete]
-// CHECK:STDOUT:   %Function.type.f90: type = facet_type <@Function.loc13> [concrete]
+// CHECK:STDOUT:   %Function.type.91e: type = facet_type <@Function.loc13> [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -200,7 +200,7 @@ interface Class { }
 // CHECK:STDOUT:     .Function = %Function.decl.loc4
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Function.decl.loc4: %Function.type.b14 = fn_decl @Function.loc4 [concrete = constants.%Function] {} {}
-// CHECK:STDOUT:   %Function.decl.loc13: type = interface_decl @Function.loc13 [concrete = constants.%Function.type.f90] {} {}
+// CHECK:STDOUT:   %Function.decl.loc13: type = interface_decl @Function.loc13 [concrete = constants.%Function.type.91e] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Function.loc13;
diff --git a/toolchain/check/testdata/interface/fail_generic_redeclaration.carbon b/toolchain/check/testdata/interface/fail_generic_redeclaration.carbon
index 2a3a3aa54b0f..4ebe75af1643 100644
--- a/toolchain/check/testdata/interface/fail_generic_redeclaration.carbon
+++ b/toolchain/check/testdata/interface/fail_generic_redeclaration.carbon
@@ -45,27 +45,27 @@ interface DifferentParams(T:! ()) {}
 // CHECK:STDOUT: --- fail_generic_redeclaration.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
-// CHECK:STDOUT:   %NotGeneric.type.10e: type = facet_type <@NotGeneric.loc15> [concrete]
+// CHECK:STDOUT:   %NotGeneric.type.077: type = facet_type <@NotGeneric.loc15> [concrete]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %NotGeneric.type.93b: type = generic_interface_type @NotGeneric.loc23 [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %NotGeneric.generic: %NotGeneric.type.93b = struct_value () [concrete]
-// CHECK:STDOUT:   %NotGeneric.type.8cb: type = facet_type <@NotGeneric.loc23, @NotGeneric.loc23(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.c08: %NotGeneric.type.8cb = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %NotGeneric.type.62d: type = facet_type <@NotGeneric.loc23, @NotGeneric.loc23(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.09e: %NotGeneric.type.62d = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic.loc25 [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.c99: type = facet_type <@Generic.loc33> [concrete]
-// CHECK:STDOUT:   %Self.5ae: %Generic.type.c99 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Generic.type.33d: type = facet_type <@Generic.loc33> [concrete]
+// CHECK:STDOUT:   %Self.284: %Generic.type.33d = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %DifferentParams.type.d40e5c.1: type = generic_interface_type @DifferentParams.loc35 [concrete]
 // CHECK:STDOUT:   %DifferentParams.generic.d33670.1: %DifferentParams.type.d40e5c.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %T.7a6: %empty_tuple.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %DifferentParams.type.d40e5c.2: type = generic_interface_type @DifferentParams.loc43 [concrete]
 // CHECK:STDOUT:   %DifferentParams.generic.d33670.2: %DifferentParams.type.d40e5c.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %DifferentParams.type.12c: type = facet_type <@DifferentParams.loc43, @DifferentParams.loc43(%T.7a6)> [symbolic]
-// CHECK:STDOUT:   %Self.8d7: %DifferentParams.type.12c = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %DifferentParams.type.0f4: type = facet_type <@DifferentParams.loc43, @DifferentParams.loc43(%T.7a6)> [symbolic]
+// CHECK:STDOUT:   %Self.07f: %DifferentParams.type.0f4 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -74,7 +74,7 @@ interface DifferentParams(T:! ()) {}
 // CHECK:STDOUT:     .Generic = %Generic.decl.loc25
 // CHECK:STDOUT:     .DifferentParams = %DifferentParams.decl.loc35
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %NotGeneric.decl.loc15: type = interface_decl @NotGeneric.loc15 [concrete = constants.%NotGeneric.type.10e] {} {}
+// CHECK:STDOUT:   %NotGeneric.decl.loc15: type = interface_decl @NotGeneric.loc15 [concrete = constants.%NotGeneric.type.077] {} {}
 // CHECK:STDOUT:   %NotGeneric.decl.loc23: %NotGeneric.type.93b = interface_decl @NotGeneric.loc23 [concrete = constants.%NotGeneric.generic] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
@@ -87,7 +87,7 @@ interface DifferentParams(T:! ()) {}
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc25_19.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc25_19.1 (constants.%T.8b3)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Generic.decl.loc33: type = interface_decl @Generic.loc33 [concrete = constants.%Generic.type.c99] {} {}
+// CHECK:STDOUT:   %Generic.decl.loc33: type = interface_decl @Generic.loc33 [concrete = constants.%Generic.type.33d] {} {}
 // CHECK:STDOUT:   %DifferentParams.decl.loc35: %DifferentParams.type.d40e5c.1 = interface_decl @DifferentParams.loc35 [concrete = constants.%DifferentParams.generic.d33670.1] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
@@ -112,11 +112,11 @@ interface DifferentParams(T:! ()) {}
 // CHECK:STDOUT:   %T.loc23_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc23_22.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %NotGeneric.type: type = facet_type <@NotGeneric.loc23, @NotGeneric.loc23(%T.loc23_22.1)> [symbolic = %NotGeneric.type (constants.%NotGeneric.type.8cb)]
-// CHECK:STDOUT:   %Self.2: @NotGeneric.loc23.%NotGeneric.type (%NotGeneric.type.8cb) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c08)]
+// CHECK:STDOUT:   %NotGeneric.type: type = facet_type <@NotGeneric.loc23, @NotGeneric.loc23(%T.loc23_22.1)> [symbolic = %NotGeneric.type (constants.%NotGeneric.type.62d)]
+// CHECK:STDOUT:   %Self.2: @NotGeneric.loc23.%NotGeneric.type (%NotGeneric.type.62d) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.09e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @NotGeneric.loc23.%NotGeneric.type (%NotGeneric.type.8cb) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c08)]
+// CHECK:STDOUT:     %Self.1: @NotGeneric.loc23.%NotGeneric.type (%NotGeneric.type.62d) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.09e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -131,7 +131,7 @@ interface DifferentParams(T:! ()) {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Generic.loc33 {
-// CHECK:STDOUT:   %Self: %Generic.type.c99 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.5ae]
+// CHECK:STDOUT:   %Self: %Generic.type.33d = bind_symbolic_name Self, 0 [symbolic = constants.%Self.284]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -148,11 +148,11 @@ interface DifferentParams(T:! ()) {}
 // CHECK:STDOUT:   %T.loc43_27.1: %empty_tuple.type = bind_symbolic_name T, 0 [symbolic = %T.loc43_27.1 (constants.%T.7a6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %DifferentParams.type: type = facet_type <@DifferentParams.loc43, @DifferentParams.loc43(%T.loc43_27.1)> [symbolic = %DifferentParams.type (constants.%DifferentParams.type.12c)]
-// CHECK:STDOUT:   %Self.2: @DifferentParams.loc43.%DifferentParams.type (%DifferentParams.type.12c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.8d7)]
+// CHECK:STDOUT:   %DifferentParams.type: type = facet_type <@DifferentParams.loc43, @DifferentParams.loc43(%T.loc43_27.1)> [symbolic = %DifferentParams.type (constants.%DifferentParams.type.0f4)]
+// CHECK:STDOUT:   %Self.2: @DifferentParams.loc43.%DifferentParams.type (%DifferentParams.type.0f4) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.07f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @DifferentParams.loc43.%DifferentParams.type (%DifferentParams.type.12c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.8d7)]
+// CHECK:STDOUT:     %Self.1: @DifferentParams.loc43.%DifferentParams.type (%DifferentParams.type.0f4) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.07f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/interface/fail_member_lookup.carbon b/toolchain/check/testdata/interface/fail_member_lookup.carbon
index 17fd3cd4e541..afd4acd00985 100644
--- a/toolchain/check/testdata/interface/fail_member_lookup.carbon
+++ b/toolchain/check/testdata/interface/fail_member_lookup.carbon
@@ -50,7 +50,7 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface> [concrete]
-// CHECK:STDOUT:   %Self.719: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.4f1: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Interface.F.type: type = fn_type @Interface.F [concrete]
 // CHECK:STDOUT:   %Interface.F: %Interface.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Interface.assoc_type: type = assoc_entity_type @Interface [concrete]
@@ -62,10 +62,10 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Different.type: type = facet_type <@Different> [concrete]
-// CHECK:STDOUT:   %Self.e7f: %Different.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.840: %Different.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %U: %Different.type = bind_symbolic_name U, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.855: type = pattern_type %Different.type [concrete]
+// CHECK:STDOUT:   %pattern_type.37d: type = pattern_type %Different.type [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -94,7 +94,7 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
 // CHECK:STDOUT:   %Different.decl: type = interface_decl @Different [concrete = constants.%Different.type] {} {}
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.855 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.37d = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: <error> = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: <error> = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
@@ -112,7 +112,7 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1]
 // CHECK:STDOUT:   %Interface.F.decl: %Interface.F.type = fn_decl @Interface.F [concrete = constants.%Interface.F] {} {}
 // CHECK:STDOUT:   %assoc0: %Interface.assoc_type = assoc_entity element0, %Interface.F.decl [concrete = constants.%assoc0.b4c]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
@@ -127,7 +127,7 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Different {
-// CHECK:STDOUT:   %Self: %Different.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e7f]
+// CHECK:STDOUT:   %Self: %Different.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.840]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -166,9 +166,9 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT:   fn() -> <error>;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Interface.F(constants.%Self.719) {}
+// CHECK:STDOUT: specific @Interface.F(constants.%Self.4f1) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.719) {}
+// CHECK:STDOUT: specific @T(constants.%Self.4f1) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @G(constants.%U) {
 // CHECK:STDOUT:   %U.loc32_6.1 => constants.%U
diff --git a/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon b/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon
index 7649a08513eb..9c338ad36610 100644
--- a/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon
+++ b/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon
@@ -29,7 +29,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0.cd1: %I.assoc_type = assoc_entity element0, @I.%T [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
@@ -42,18 +42,18 @@ interface I {
 // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [concrete]
 // CHECK:STDOUT: }
@@ -67,8 +67,8 @@ interface I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -81,7 +81,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T [concrete] {
 // CHECK:STDOUT:     %assoc0: %I.assoc_type = assoc_entity element0, @I.%T [concrete = constants.%assoc0.cd1]
 // CHECK:STDOUT:     %int_32.loc20_27: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
@@ -94,7 +94,7 @@ interface I {
 // CHECK:STDOUT:   %N: %i32 = assoc_const_decl @N [concrete] {
 // CHECK:STDOUT:     %assoc1: %I.assoc_type = assoc_entity element1, @I.%N [concrete = constants.%assoc1]
 // CHECK:STDOUT:     %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc25_27.1: <bound method> = bound_method %int_42, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc25_27.2: <bound method> = bound_method %int_42, %specific_fn [concrete = constants.%bound_method]
@@ -122,7 +122,7 @@ interface I {
 // CHECK:STDOUT:   assoc_const N:! %i32 = %.loc25_27.2;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @N(constants.%Self.826) {}
+// CHECK:STDOUT: specific @N(constants.%Self.ce4) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon b/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon
index 52b581b3ba92..b7ba6c08edd8 100644
--- a/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon
+++ b/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon
@@ -208,26 +208,26 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface> [concrete]
-// CHECK:STDOUT:   %Self.719: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
-// CHECK:STDOUT:   %C: type = class_type @C, @C(%Self.719) [symbolic]
+// CHECK:STDOUT:   %Self.4f1: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %C: type = class_type @C, @C(%Self.4f1) [symbolic]
 // CHECK:STDOUT:   %pattern_type.68b: type = pattern_type %C [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %pattern_type.a32: type = pattern_type %U [symbolic]
-// CHECK:STDOUT:   %C.F.type: type = fn_type @C.F, @C(%Self.719) [symbolic]
+// CHECK:STDOUT:   %C.F.type: type = fn_type @C.F, @C(%Self.4f1) [symbolic]
 // CHECK:STDOUT:   %C.F: %C.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self.719) [symbolic]
-// CHECK:STDOUT:   %ptr.134: type = ptr_type %C [symbolic]
-// CHECK:STDOUT:   %pattern_type.274: type = pattern_type %ptr.134 [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Self.719) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self.4f1) [symbolic]
+// CHECK:STDOUT:   %ptr.67c: type = ptr_type %C [symbolic]
+// CHECK:STDOUT:   %pattern_type.8e8: type = pattern_type %ptr.67c [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%Self.4f1) [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %require_complete.b54: <witness> = require_complete_type %U [symbolic]
-// CHECK:STDOUT:   %require_complete.e44: <witness> = require_complete_type %C [symbolic]
+// CHECK:STDOUT:   %require_complete.0ee: <witness> = require_complete_type %C [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -258,7 +258,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:     %U.ref.loc20_49: type = name_ref U, %U.loc20 [symbolic = %U.loc14_22.1 (constants.%U)]
 // CHECK:STDOUT:     %self.param.loc20: @C.F.%C (%C) = value_param call_param0
 // CHECK:STDOUT:     %.loc20_24.1: type = splice_block %Self.ref.loc20 [symbolic = %C (constants.%C)] {
-// CHECK:STDOUT:       %.loc20_24.2: type = specific_constant constants.%C, @C(constants.%Self.719) [symbolic = %C (constants.%C)]
+// CHECK:STDOUT:       %.loc20_24.2: type = specific_constant constants.%C, @C(constants.%Self.4f1) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:       %Self.ref.loc20: type = name_ref Self, %.loc20_24.2 [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %self.loc20: @C.F.%C (%C) = bind_name self, %self.param.loc20
@@ -273,7 +273,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Interface {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.4f1]
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [symbolic = constants.%C] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
@@ -283,7 +283,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@Interface.%Self: %Interface.type) {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.719)]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.4f1)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%Self) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:
@@ -293,16 +293,16 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: @C.%Self.ref as constants.%Destroy.type {
 // CHECK:STDOUT:     %C.as.Destroy.impl.Op.decl: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type) = fn_decl @C.as.Destroy.impl.Op [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op)] {
-// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.274) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.274) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.8e8) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @C.as.Destroy.impl.Op.%pattern_type (%pattern_type.8e8) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %.loc13_11.1: %pattern_type.f6d = addr_pattern %self.param_patt [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.134) = value_param call_param0
+// CHECK:STDOUT:       %self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.67c) = value_param call_param0
 // CHECK:STDOUT:       %.loc13_11.2: type = splice_block %Self.ref [symbolic = %C (constants.%C)] {
-// CHECK:STDOUT:         %.loc13_11.3: type = specific_constant constants.%C, @C(constants.%Self.719) [symbolic = %C (constants.%C)]
+// CHECK:STDOUT:         %.loc13_11.3: type = specific_constant constants.%C, @C(constants.%Self.4f1) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:         %Self.ref: type = name_ref Self, %.loc13_11.3 [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:       }
-// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.134) = bind_name self, %self.param
+// CHECK:STDOUT:       %self: @C.as.Destroy.impl.Op.%ptr (%ptr.67c) = bind_name self, %self.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
@@ -313,7 +313,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic class @C(@Interface.%Self: %Interface.type) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.719)]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.4f1)]
 // CHECK:STDOUT:   %C.F.type: type = fn_type @C.F, @C(%Self) [symbolic = %C.F.type (constants.%C.F.type)]
 // CHECK:STDOUT:   %C.F: @C.%C.F.type (%C.F.type) = struct_value () [symbolic = %C.F (constants.%C.F)]
 // CHECK:STDOUT:
@@ -330,7 +330,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:       %U.ref.loc14_41: type = name_ref U, %U.loc14_22.2 [symbolic = %U.loc14_22.1 (constants.%U)]
 // CHECK:STDOUT:       %self.param.loc14: @C.F.%C (%C) = value_param call_param0
 // CHECK:STDOUT:       %.loc14_16.1: type = splice_block %Self.ref.loc14 [symbolic = %C (constants.%C)] {
-// CHECK:STDOUT:         %.loc14_16.2: type = specific_constant constants.%C, @C(constants.%Self.719) [symbolic = %C (constants.%C)]
+// CHECK:STDOUT:         %.loc14_16.2: type = specific_constant constants.%C, @C(constants.%Self.4f1) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:         %Self.ref.loc14: type = name_ref Self, %.loc14_16.2 [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:       %self.loc14: @C.F.%C (%C) = bind_name self, %self.param.loc14
@@ -345,7 +345,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [symbolic = @C.as.Destroy.impl.%C (constants.%C)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%Self.719) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%Self.4f1) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -356,7 +356,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.F(@Interface.%Self: %Interface.type, %U.loc14_22.2: type) {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.719)]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.4f1)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
 // CHECK:STDOUT:   %pattern_type.loc14_10: type = pattern_type %C [symbolic = %pattern_type.loc14_10 (constants.%pattern_type.68b)]
 // CHECK:STDOUT:   %U.loc14_22.1: type = bind_symbolic_name U, 1 [symbolic = %U.loc14_22.1 (constants.%U)]
@@ -364,7 +364,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc20_46: <witness> = require_complete_type %U.loc14_22.1 [symbolic = %require_complete.loc20_46 (constants.%require_complete.b54)]
-// CHECK:STDOUT:   %require_complete.loc20_22: <witness> = require_complete_type %C [symbolic = %require_complete.loc20_22 (constants.%require_complete.e44)]
+// CHECK:STDOUT:   %require_complete.loc20_22: <witness> = require_complete_type %C [symbolic = %require_complete.loc20_22 (constants.%require_complete.0ee)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param.loc20: @C.F.%C (%C), %u.param.loc20: @C.F.%U.loc14_22.1 (%U)) -> @C.F.%U.loc14_22.1 (%U) {
 // CHECK:STDOUT:   !entry:
@@ -374,41 +374,41 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @C.as.Destroy.impl.Op(@Interface.%Self: %Interface.type) {
-// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.719)]
+// CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.4f1)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%Self) [symbolic = %C (constants.%C)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.134)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.274)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %C [symbolic = %ptr (constants.%ptr.67c)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %ptr [symbolic = %pattern_type (constants.%pattern_type.8e8)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.134)) = "no_op";
+// CHECK:STDOUT:   fn(%self.param: @C.as.Destroy.impl.Op.%ptr (%ptr.67c)) = "no_op";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C(constants.%Self.719) {
+// CHECK:STDOUT: specific @C(constants.%Self.4f1) {
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Self => constants.%Self.719
+// CHECK:STDOUT:   %Self => constants.%Self.4f1
 // CHECK:STDOUT:   %C.F.type => constants.%C.F.type
 // CHECK:STDOUT:   %C.F => constants.%C.F
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.F(constants.%Self.719, constants.%U) {
-// CHECK:STDOUT:   %Self => constants.%Self.719
+// CHECK:STDOUT: specific @C.F(constants.%Self.4f1, constants.%U) {
+// CHECK:STDOUT:   %Self => constants.%Self.4f1
 // CHECK:STDOUT:   %C => constants.%C
 // CHECK:STDOUT:   %pattern_type.loc14_10 => constants.%pattern_type.68b
 // CHECK:STDOUT:   %U.loc14_22.1 => constants.%U
 // CHECK:STDOUT:   %pattern_type.loc14_32 => constants.%pattern_type.a32
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Self.719) {
-// CHECK:STDOUT:   %Self => constants.%Self.719
+// CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%Self.4f1) {
+// CHECK:STDOUT:   %Self => constants.%Self.4f1
 // CHECK:STDOUT:   %C => constants.%C
 // CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Self.719) {
-// CHECK:STDOUT:   %Self => constants.%Self.719
+// CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%Self.4f1) {
+// CHECK:STDOUT:   %Self => constants.%Self.4f1
 // CHECK:STDOUT:   %C => constants.%C
-// CHECK:STDOUT:   %ptr => constants.%ptr.134
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.274
+// CHECK:STDOUT:   %ptr => constants.%ptr.67c
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.8e8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/fail_todo_generic_default_fn.carbon b/toolchain/check/testdata/interface/fail_todo_generic_default_fn.carbon
index 0a2b37d9f3b5..59323d2f463b 100644
--- a/toolchain/check/testdata/interface/fail_todo_generic_default_fn.carbon
+++ b/toolchain/check/testdata/interface/fail_todo_generic_default_fn.carbon
@@ -34,10 +34,10 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
 // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
-// CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %I.type.328: type = facet_type <@I, @I(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %I.type.328 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.857: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.F.type.2aef59.1: type = fn_type @I.F.loc17, @I(%T) [symbolic]
 // CHECK:STDOUT:   %I.F.bb2dd4.1: %I.F.type.2aef59.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic]
@@ -58,21 +58,21 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:     %T.loc15_13.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_13.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.F.decl: %I.F.type.2aef59.2 = fn_decl @I.F.loc27 [symbolic = constants.%I.F.bb2dd4.2] {
-// CHECK:STDOUT:     %self.patt: @I.F.loc27.%pattern_type (%pattern_type.4be) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.F.loc27.%pattern_type (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:     %return.patt: @I.F.loc27.%pattern_type (%pattern_type.4be) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @I.F.loc27.%pattern_type (%pattern_type.4be) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.F.loc27.%pattern_type (%pattern_type.857) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.F.loc27.%pattern_type (%pattern_type.857) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @I.F.loc27.%pattern_type (%pattern_type.857) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @I.F.loc27.%pattern_type (%pattern_type.857) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc27_6: type = bind_symbolic_name T, 0 [symbolic = @I.%T.loc15_13.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc27_35.1: @I.F.loc27.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:     %Self.ref.loc27_35: @I.F.loc27.%I.type (%I.type.325) = name_ref Self, %.loc27_35.1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:     %.loc27_35.1: @I.F.loc27.%I.type (%I.type.328) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:     %Self.ref.loc27_35: @I.F.loc27.%I.type (%I.type.328) = name_ref Self, %.loc27_35.1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:     %Self.as_type.loc27_35: type = facet_access_type %Self.ref.loc27_35 [symbolic = %Self.as_type.loc27_24.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     %.loc27_35.2: type = converted %Self.ref.loc27_35, %Self.as_type.loc27_35 [symbolic = %Self.as_type.loc27_24.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     %self.param: @I.F.loc27.%Self.as_type.loc27_24.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc27_24.1: type = splice_block %.loc27_24.3 [symbolic = %Self.as_type.loc27_24.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:       %.loc27_24.2: @I.F.loc27.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:       %Self.ref.loc27_24: @I.F.loc27.%I.type (%I.type.325) = name_ref Self, %.loc27_24.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:       %.loc27_24.2: @I.F.loc27.%I.type (%I.type.328) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:       %Self.ref.loc27_24: @I.F.loc27.%I.type (%I.type.328) = name_ref Self, %.loc27_24.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:       %Self.as_type.loc27_24.2: type = facet_access_type %Self.ref.loc27_24 [symbolic = %Self.as_type.loc27_24.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %.loc27_24.3: type = converted %Self.ref.loc27_24, %Self.as_type.loc27_24.2 [symbolic = %Self.as_type.loc27_24.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:     }
@@ -86,29 +86,29 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:   %T.loc15_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_13.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc15_13.1)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc15_13.1)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F.loc17, @I(%T.loc15_13.1) [symbolic = %I.F.type (constants.%I.F.type.2aef59.1)]
 // CHECK:STDOUT:   %I.F: @I.%I.F.type (%I.F.type.2aef59.1) = struct_value () [symbolic = %I.F (constants.%I.F.bb2dd4.1)]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc15_13.1) [symbolic = %I.assoc_type (constants.%I.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc17_29.2: @I.%I.assoc_type (%I.assoc_type) = assoc_entity element0, %I.F.decl [symbolic = %assoc0.loc17_29.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %I.F.decl: @I.%I.F.type (%I.F.type.2aef59.1) = fn_decl @I.F.loc17 [symbolic = @I.%I.F (constants.%I.F.bb2dd4.1)] {
-// CHECK:STDOUT:       %self.patt: @I.F.loc17.%pattern_type (%pattern_type.4be) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @I.F.loc17.%pattern_type (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
-// CHECK:STDOUT:       %return.patt: @I.F.loc17.%pattern_type (%pattern_type.4be) = return_slot_pattern [concrete]
-// CHECK:STDOUT:       %return.param_patt: @I.F.loc17.%pattern_type (%pattern_type.4be) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:       %self.patt: @I.F.loc17.%pattern_type (%pattern_type.857) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @I.F.loc17.%pattern_type (%pattern_type.857) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %return.patt: @I.F.loc17.%pattern_type (%pattern_type.857) = return_slot_pattern [concrete]
+// CHECK:STDOUT:       %return.param_patt: @I.F.loc17.%pattern_type (%pattern_type.857) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
-// CHECK:STDOUT:       %.loc17_25.1: @I.F.loc17.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:       %Self.ref.loc17_25: @I.F.loc17.%I.type (%I.type.325) = name_ref Self, %.loc17_25.1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:       %.loc17_25.1: @I.F.loc17.%I.type (%I.type.328) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:       %Self.ref.loc17_25: @I.F.loc17.%I.type (%I.type.328) = name_ref Self, %.loc17_25.1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:       %Self.as_type.loc17_25: type = facet_access_type %Self.ref.loc17_25 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %.loc17_25.2: type = converted %Self.ref.loc17_25, %Self.as_type.loc17_25 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       %self.param: @I.F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc17_14.1: type = splice_block %.loc17_14.3 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc17_14.2: @I.F.loc17.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:         %Self.ref.loc17_14: @I.F.loc17.%I.type (%I.type.325) = name_ref Self, %.loc17_14.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %.loc17_14.2: @I.F.loc17.%I.type (%I.type.328) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %Self.ref.loc17_14: @I.F.loc17.%I.type (%I.type.328) = name_ref Self, %.loc17_14.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:         %Self.as_type.loc17_14.2: type = facet_access_type %Self.ref.loc17_14 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc17_14.3: type = converted %Self.ref.loc17_14, %Self.as_type.loc17_14.2 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -125,22 +125,22 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F.loc17(@I.%T.loc15_13.2: type, @I.%Self.1: @I.%I.type (%I.type.325)) {
+// CHECK:STDOUT: generic fn @I.F.loc17(@I.%T.loc15_13.2: type, @I.%Self.1: @I.%I.type (%I.type.328)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.loc17.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.loc17.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc17_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc17_14.1 [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc17_14.1 [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @I.F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type)) -> @I.F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.F.loc27(%T.loc27_6: type, @I.%Self.1: @I.%I.type (%I.type.325)) {
+// CHECK:STDOUT: generic fn @I.F.loc27(%T.loc27_6: type, @I.%Self.1: @I.%I.type (%I.type.328)) {
 // CHECK:STDOUT:   %T.loc27_24: type = bind_symbolic_name T, 0 [symbolic = %T.loc27_24 (constants.%T)]
-// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc27_24)> [symbolic = %I.type (constants.%I.type.325)]
-// CHECK:STDOUT:   %Self: @I.F.loc27.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc27_24)> [symbolic = %I.type (constants.%I.type.328)]
+// CHECK:STDOUT:   %Self: @I.F.loc27.%I.type (%I.type.328) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc27_24.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc27_24.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc27_24.1 [symbolic = %pattern_type (constants.%pattern_type.4be)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc27_24.1 [symbolic = %pattern_type (constants.%pattern_type.857)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc27_24.1 [symbolic = %require_complete (constants.%require_complete)]
@@ -156,7 +156,7 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:   %T.loc15_13.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
 // CHECK:STDOUT:   %Self.2 => constants.%Self
 // CHECK:STDOUT:   %I.F.type => constants.%I.F.type.2aef59.1
 // CHECK:STDOUT:   %I.F => constants.%I.F.bb2dd4.1
@@ -166,17 +166,17 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F.loc17(constants.%T, constants.%Self) {
 // CHECK:STDOUT:   %T => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc17_14.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.F.loc27(constants.%T, constants.%Self) {
 // CHECK:STDOUT:   %T.loc27_24 => constants.%T
-// CHECK:STDOUT:   %I.type => constants.%I.type.325
+// CHECK:STDOUT:   %I.type => constants.%I.type.328
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc27_24.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.857
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/generic.carbon b/toolchain/check/testdata/interface/generic.carbon
index 8f2084f7f8da..1625bfe1849d 100644
--- a/toolchain/check/testdata/interface/generic.carbon
+++ b/toolchain/check/testdata/interface/generic.carbon
@@ -71,26 +71,26 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %Simple.type.3b3: type = generic_interface_type @Simple [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %Simple.generic: %Simple.type.3b3 = struct_value () [concrete]
-// CHECK:STDOUT:   %Simple.type.d08: type = facet_type <@Simple, @Simple(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.faf: %Simple.type.d08 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Simple.type.d8c: type = facet_type <@Simple, @Simple(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.628: %Simple.type.d8c = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %X: type = class_type @X [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %WithAssocFn.type.509: type = generic_interface_type @WithAssocFn [concrete]
 // CHECK:STDOUT:   %WithAssocFn.generic: %WithAssocFn.type.509 = struct_value () [concrete]
-// CHECK:STDOUT:   %WithAssocFn.type.ce6: type = facet_type <@WithAssocFn, @WithAssocFn(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.088: %WithAssocFn.type.ce6 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %WithAssocFn.type.833: type = facet_type <@WithAssocFn, @WithAssocFn(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.ec4: %WithAssocFn.type.833 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.019: type = pattern_type %X [concrete]
 // CHECK:STDOUT:   %WithAssocFn.F.type.1af: type = fn_type @WithAssocFn.F, @WithAssocFn(%T.8b3) [symbolic]
 // CHECK:STDOUT:   %WithAssocFn.F.b7d: %WithAssocFn.F.type.1af = struct_value () [symbolic]
 // CHECK:STDOUT:   %WithAssocFn.assoc_type.b2f: type = assoc_entity_type @WithAssocFn, @WithAssocFn(%T.8b3) [symbolic]
 // CHECK:STDOUT:   %assoc0.fc5: %WithAssocFn.assoc_type.b2f = assoc_entity element0, @WithAssocFn.%WithAssocFn.F.decl [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
-// CHECK:STDOUT:   %Simple.type.51f: type = facet_type <@Simple, @Simple(%C)> [concrete]
-// CHECK:STDOUT:   %Self.21f: %Simple.type.51f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Simple.type.9ea: type = facet_type <@Simple, @Simple(%C)> [concrete]
+// CHECK:STDOUT:   %Self.9c5: %Simple.type.9ea = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Simple.impl_witness: <witness> = impl_witness @C.%Simple.impl_witness_table [concrete]
-// CHECK:STDOUT:   %WithAssocFn.type.683: type = facet_type <@WithAssocFn, @WithAssocFn(%C)> [concrete]
-// CHECK:STDOUT:   %Self.7ae: %WithAssocFn.type.683 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %WithAssocFn.type.097: type = facet_type <@WithAssocFn, @WithAssocFn(%C)> [concrete]
+// CHECK:STDOUT:   %Self.fce: %WithAssocFn.type.097 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %WithAssocFn.F.type.18c: type = fn_type @WithAssocFn.F, @WithAssocFn(%C) [concrete]
 // CHECK:STDOUT:   %WithAssocFn.F.e46: %WithAssocFn.F.type.18c = struct_value () [concrete]
 // CHECK:STDOUT:   %WithAssocFn.assoc_type.9ea: type = assoc_entity_type @WithAssocFn, @WithAssocFn(%C) [concrete]
@@ -98,19 +98,19 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %WithAssocFn.impl_witness: <witness> = impl_witness @C.%WithAssocFn.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.WithAssocFn.impl.F.type: type = fn_type @C.as.WithAssocFn.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.WithAssocFn.impl.F: %C.as.WithAssocFn.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %WithAssocFn.facet: %WithAssocFn.type.683 = facet_value %C, (%WithAssocFn.impl_witness) [concrete]
+// CHECK:STDOUT:   %WithAssocFn.facet: %WithAssocFn.type.097 = facet_value %C, (%WithAssocFn.impl_witness) [concrete]
 // CHECK:STDOUT:   %X.val: %X = struct_value () [concrete]
 // CHECK:STDOUT:   %N: %T.8b3 = bind_symbolic_name N, 1 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T.8b3 [symbolic]
 // CHECK:STDOUT:   %WithImplicitArgs.type: type = generic_interface_type @WithImplicitArgs [concrete]
 // CHECK:STDOUT:   %WithImplicitArgs.generic: %WithImplicitArgs.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.692: %Simple.type.51f = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.353: type = pattern_type %Simple.type.51f [concrete]
+// CHECK:STDOUT:   %T.56e: %Simple.type.9ea = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b56: type = pattern_type %Simple.type.9ea [concrete]
 // CHECK:STDOUT:   %Receive.type: type = fn_type @Receive [concrete]
 // CHECK:STDOUT:   %Receive: %Receive.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Pass.type: type = fn_type @Pass [concrete]
 // CHECK:STDOUT:   %Pass: %Pass.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Receive.specific_fn: <specific function> = specific_function %Receive, @Receive(%T.692) [symbolic]
+// CHECK:STDOUT:   %Receive.specific_fn: <specific function> = specific_function %Receive, @Receive(%T.56e) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -150,26 +150,26 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:     %N.loc22_38.2: @WithImplicitArgs.%T.loc22_28.1 (%T.8b3) = bind_symbolic_name N, 1 [symbolic = %N.loc22_38.1 (constants.%N)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Receive.decl: %Receive.type = fn_decl @Receive [concrete = constants.%Receive] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.353 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.b56 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc24: type = splice_block %Simple.type [concrete = constants.%Simple.type.51f] {
+// CHECK:STDOUT:     %.loc24: type = splice_block %Simple.type [concrete = constants.%Simple.type.9ea] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Simple.ref: %Simple.type.3b3 = name_ref Simple, file.%Simple.decl [concrete = constants.%Simple.generic]
 // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:       %Simple.type: type = facet_type <@Simple, @Simple(constants.%C)> [concrete = constants.%Simple.type.51f]
+// CHECK:STDOUT:       %Simple.type: type = facet_type <@Simple, @Simple(constants.%C)> [concrete = constants.%Simple.type.9ea]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc24_12.2: %Simple.type.51f = bind_symbolic_name T, 0 [symbolic = %T.loc24_12.1 (constants.%T.692)]
+// CHECK:STDOUT:     %T.loc24_12.2: %Simple.type.9ea = bind_symbolic_name T, 0 [symbolic = %T.loc24_12.1 (constants.%T.56e)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Pass.decl: %Pass.type = fn_decl @Pass [concrete = constants.%Pass] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.353 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.b56 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc25: type = splice_block %Simple.type [concrete = constants.%Simple.type.51f] {
+// CHECK:STDOUT:     %.loc25: type = splice_block %Simple.type [concrete = constants.%Simple.type.9ea] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Simple.ref: %Simple.type.3b3 = name_ref Simple, file.%Simple.decl [concrete = constants.%Simple.generic]
 // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:       %Simple.type: type = facet_type <@Simple, @Simple(constants.%C)> [concrete = constants.%Simple.type.51f]
+// CHECK:STDOUT:       %Simple.type: type = facet_type <@Simple, @Simple(constants.%C)> [concrete = constants.%Simple.type.9ea]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc25_9.2: %Simple.type.51f = bind_symbolic_name T, 0 [symbolic = %T.loc25_9.1 (constants.%T.692)]
+// CHECK:STDOUT:     %T.loc25_9.2: %Simple.type.9ea = bind_symbolic_name T, 0 [symbolic = %T.loc25_9.1 (constants.%T.56e)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -177,11 +177,11 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %T.loc4_18.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_18.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Simple.type: type = facet_type <@Simple, @Simple(%T.loc4_18.1)> [symbolic = %Simple.type (constants.%Simple.type.d08)]
-// CHECK:STDOUT:   %Self.2: @Simple.%Simple.type (%Simple.type.d08) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.faf)]
+// CHECK:STDOUT:   %Simple.type: type = facet_type <@Simple, @Simple(%T.loc4_18.1)> [symbolic = %Simple.type (constants.%Simple.type.d8c)]
+// CHECK:STDOUT:   %Self.2: @Simple.%Simple.type (%Simple.type.d8c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.628)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Simple.%Simple.type (%Simple.type.d08) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.faf)]
+// CHECK:STDOUT:     %Self.1: @Simple.%Simple.type (%Simple.type.d8c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.628)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -193,15 +193,15 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %T.loc8_23.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_23.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %WithAssocFn.type: type = facet_type <@WithAssocFn, @WithAssocFn(%T.loc8_23.1)> [symbolic = %WithAssocFn.type (constants.%WithAssocFn.type.ce6)]
-// CHECK:STDOUT:   %Self.2: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.ce6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.088)]
+// CHECK:STDOUT:   %WithAssocFn.type: type = facet_type <@WithAssocFn, @WithAssocFn(%T.loc8_23.1)> [symbolic = %WithAssocFn.type (constants.%WithAssocFn.type.833)]
+// CHECK:STDOUT:   %Self.2: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.833) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.ec4)]
 // CHECK:STDOUT:   %WithAssocFn.F.type: type = fn_type @WithAssocFn.F, @WithAssocFn(%T.loc8_23.1) [symbolic = %WithAssocFn.F.type (constants.%WithAssocFn.F.type.1af)]
 // CHECK:STDOUT:   %WithAssocFn.F: @WithAssocFn.%WithAssocFn.F.type (%WithAssocFn.F.type.1af) = struct_value () [symbolic = %WithAssocFn.F (constants.%WithAssocFn.F.b7d)]
 // CHECK:STDOUT:   %WithAssocFn.assoc_type: type = assoc_entity_type @WithAssocFn, @WithAssocFn(%T.loc8_23.1) [symbolic = %WithAssocFn.assoc_type (constants.%WithAssocFn.assoc_type.b2f)]
 // CHECK:STDOUT:   %assoc0.loc10_14.2: @WithAssocFn.%WithAssocFn.assoc_type (%WithAssocFn.assoc_type.b2f) = assoc_entity element0, %WithAssocFn.F.decl [symbolic = %assoc0.loc10_14.2 (constants.%assoc0.fc5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.ce6) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.088)]
+// CHECK:STDOUT:     %Self.1: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.833) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.ec4)]
 // CHECK:STDOUT:     %WithAssocFn.F.decl: @WithAssocFn.%WithAssocFn.F.type (%WithAssocFn.F.type.1af) = fn_decl @WithAssocFn.F [symbolic = @WithAssocFn.%WithAssocFn.F (constants.%WithAssocFn.F.b7d)] {
 // CHECK:STDOUT:       %return.patt: %pattern_type.019 = return_slot_pattern [concrete]
 // CHECK:STDOUT:       %return.param_patt: %pattern_type.019 = out_param_pattern %return.patt, call_param0 [concrete]
@@ -262,7 +262,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:     %Simple.ref: %Simple.type.3b3 = name_ref Simple, file.%Simple.decl [concrete = constants.%Simple.generic]
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %Simple.type: type = facet_type <@Simple, @Simple(constants.%C)> [concrete = constants.%Simple.type.51f]
+// CHECK:STDOUT:     %Simple.type: type = facet_type <@Simple, @Simple(constants.%C)> [concrete = constants.%Simple.type.9ea]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Simple.impl_witness_table = impl_witness_table (), @C.as.Simple.impl [concrete]
 // CHECK:STDOUT:   %Simple.impl_witness: <witness> = impl_witness %Simple.impl_witness_table [concrete = constants.%Simple.impl_witness]
@@ -270,7 +270,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:     %WithAssocFn.ref: %WithAssocFn.type.509 = name_ref WithAssocFn, file.%WithAssocFn.decl [concrete = constants.%WithAssocFn.generic]
 // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %WithAssocFn.type: type = facet_type <@WithAssocFn, @WithAssocFn(constants.%C)> [concrete = constants.%WithAssocFn.type.683]
+// CHECK:STDOUT:     %WithAssocFn.type: type = facet_type <@WithAssocFn, @WithAssocFn(constants.%C)> [concrete = constants.%WithAssocFn.type.097]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %WithAssocFn.impl_witness_table = impl_witness_table (@C.as.WithAssocFn.impl.%C.as.WithAssocFn.impl.F.decl), @C.as.WithAssocFn.impl [concrete]
 // CHECK:STDOUT:   %WithAssocFn.impl_witness: <witness> = impl_witness %WithAssocFn.impl_witness_table [concrete = constants.%WithAssocFn.impl_witness]
@@ -285,7 +285,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   .X = <poisoned>
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @WithAssocFn.F(@WithAssocFn.%T.loc8_23.2: type, @WithAssocFn.%Self.1: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.ce6)) {
+// CHECK:STDOUT: generic fn @WithAssocFn.F(@WithAssocFn.%T.loc8_23.2: type, @WithAssocFn.%Self.1: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.833)) {
 // CHECK:STDOUT:   fn() -> %return.param: %X;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -297,8 +297,8 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   return %.loc17_16 to %return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Receive(%T.loc24_12.2: %Simple.type.51f) {
-// CHECK:STDOUT:   %T.loc24_12.1: %Simple.type.51f = bind_symbolic_name T, 0 [symbolic = %T.loc24_12.1 (constants.%T.692)]
+// CHECK:STDOUT: generic fn @Receive(%T.loc24_12.2: %Simple.type.9ea) {
+// CHECK:STDOUT:   %T.loc24_12.1: %Simple.type.9ea = bind_symbolic_name T, 0 [symbolic = %T.loc24_12.1 (constants.%T.56e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
@@ -308,8 +308,8 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @Pass(%T.loc25_9.2: %Simple.type.51f) {
-// CHECK:STDOUT:   %T.loc25_9.1: %Simple.type.51f = bind_symbolic_name T, 0 [symbolic = %T.loc25_9.1 (constants.%T.692)]
+// CHECK:STDOUT: generic fn @Pass(%T.loc25_9.2: %Simple.type.9ea) {
+// CHECK:STDOUT:   %T.loc25_9.1: %Simple.type.9ea = bind_symbolic_name T, 0 [symbolic = %T.loc25_9.1 (constants.%T.56e)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %Receive.specific_fn.loc26_3.2: <specific function> = specific_function constants.%Receive, @Receive(%T.loc25_9.1) [symbolic = %Receive.specific_fn.loc26_3.2 (constants.%Receive.specific_fn)]
@@ -317,8 +317,8 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %Receive.ref: %Receive.type = name_ref Receive, file.%Receive.decl [concrete = constants.%Receive]
-// CHECK:STDOUT:     %T.ref: %Simple.type.51f = name_ref T, %T.loc25_9.2 [symbolic = %T.loc25_9.1 (constants.%T.692)]
-// CHECK:STDOUT:     %Receive.specific_fn.loc26_3.1: <specific function> = specific_function %Receive.ref, @Receive(constants.%T.692) [symbolic = %Receive.specific_fn.loc26_3.2 (constants.%Receive.specific_fn)]
+// CHECK:STDOUT:     %T.ref: %Simple.type.9ea = name_ref T, %T.loc25_9.2 [symbolic = %T.loc25_9.1 (constants.%T.56e)]
+// CHECK:STDOUT:     %Receive.specific_fn.loc26_3.1: <specific function> = specific_function %Receive.ref, @Receive(constants.%T.56e) [symbolic = %Receive.specific_fn.loc26_3.2 (constants.%Receive.specific_fn)]
 // CHECK:STDOUT:     %Receive.call: init %empty_tuple.type = call %Receive.specific_fn.loc26_3.1()
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -332,22 +332,22 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %T.loc8_23.1 => constants.%T.8b3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @WithAssocFn.F(constants.%T.8b3, constants.%Self.088) {}
+// CHECK:STDOUT: specific @WithAssocFn.F(constants.%T.8b3, constants.%Self.ec4) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Simple(constants.%C) {
 // CHECK:STDOUT:   %T.loc4_18.1 => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Simple.type => constants.%Simple.type.51f
-// CHECK:STDOUT:   %Self.2 => constants.%Self.21f
+// CHECK:STDOUT:   %Simple.type => constants.%Simple.type.9ea
+// CHECK:STDOUT:   %Self.2 => constants.%Self.9c5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @WithAssocFn(constants.%C) {
 // CHECK:STDOUT:   %T.loc8_23.1 => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %WithAssocFn.type => constants.%WithAssocFn.type.683
-// CHECK:STDOUT:   %Self.2 => constants.%Self.7ae
+// CHECK:STDOUT:   %WithAssocFn.type => constants.%WithAssocFn.type.097
+// CHECK:STDOUT:   %Self.2 => constants.%Self.fce
 // CHECK:STDOUT:   %WithAssocFn.F.type => constants.%WithAssocFn.F.type.18c
 // CHECK:STDOUT:   %WithAssocFn.F => constants.%WithAssocFn.F.e46
 // CHECK:STDOUT:   %WithAssocFn.assoc_type => constants.%WithAssocFn.assoc_type.9ea
@@ -362,14 +362,14 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Receive(constants.%T.692) {
-// CHECK:STDOUT:   %T.loc24_12.1 => constants.%T.692
+// CHECK:STDOUT: specific @Receive(constants.%T.56e) {
+// CHECK:STDOUT:   %T.loc24_12.1 => constants.%T.56e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Pass(constants.%T.692) {
-// CHECK:STDOUT:   %T.loc25_9.1 => constants.%T.692
+// CHECK:STDOUT: specific @Pass(constants.%T.56e) {
+// CHECK:STDOUT:   %T.loc25_9.1 => constants.%T.56e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_mismatched_args.carbon
@@ -380,23 +380,23 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Generic.type.c21: type = generic_interface_type @Generic [concrete]
 // CHECK:STDOUT:   %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.91c: type = facet_type <@Generic, @Generic(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.dee: %Generic.type.91c = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Generic.type.404: type = facet_type <@Generic, @Generic(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.f48: %Generic.type.404 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %A: type = class_type @A [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %B: type = class_type @B [concrete]
-// CHECK:STDOUT:   %Generic.type.c7c: type = facet_type <@Generic, @Generic(%A)> [concrete]
-// CHECK:STDOUT:   %T.a53: %Generic.type.c7c = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.6ea: type = pattern_type %Generic.type.c7c [concrete]
+// CHECK:STDOUT:   %Generic.type.902: type = facet_type <@Generic, @Generic(%A)> [concrete]
+// CHECK:STDOUT:   %T.cc7: %Generic.type.902 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.1c5: type = pattern_type %Generic.type.902 [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Generic.type.4ce: type = facet_type <@Generic, @Generic(%B)> [concrete]
-// CHECK:STDOUT:   %T.bae: %Generic.type.4ce = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f4a: type = pattern_type %Generic.type.4ce [concrete]
+// CHECK:STDOUT:   %Generic.type.cc2: type = facet_type <@Generic, @Generic(%B)> [concrete]
+// CHECK:STDOUT:   %T.990: %Generic.type.cc2 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b44: type = pattern_type %Generic.type.cc2 [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.52f: %Generic.type.4ce = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.768: %Generic.type.cc2 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -416,26 +416,26 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %A.decl: type = class_decl @A [concrete = constants.%A] {} {}
 // CHECK:STDOUT:   %B.decl: type = class_decl @B [concrete = constants.%B] {} {}
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.6ea = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.1c5 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc9: type = splice_block %Generic.type [concrete = constants.%Generic.type.c7c] {
+// CHECK:STDOUT:     %.loc9: type = splice_block %Generic.type [concrete = constants.%Generic.type.902] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A]
-// CHECK:STDOUT:       %Generic.type: type = facet_type <@Generic, @Generic(constants.%A)> [concrete = constants.%Generic.type.c7c]
+// CHECK:STDOUT:       %Generic.type: type = facet_type <@Generic, @Generic(constants.%A)> [concrete = constants.%Generic.type.902]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc9_6.2: %Generic.type.c7c = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.a53)]
+// CHECK:STDOUT:     %T.loc9_6.2: %Generic.type.902 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.cc7)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.f4a = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.b44 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc10: type = splice_block %Generic.type [concrete = constants.%Generic.type.4ce] {
+// CHECK:STDOUT:     %.loc10: type = splice_block %Generic.type [concrete = constants.%Generic.type.cc2] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Generic.ref: %Generic.type.c21 = name_ref Generic, file.%Generic.decl [concrete = constants.%Generic.generic]
 // CHECK:STDOUT:       %B.ref: type = name_ref B, file.%B.decl [concrete = constants.%B]
-// CHECK:STDOUT:       %Generic.type: type = facet_type <@Generic, @Generic(constants.%B)> [concrete = constants.%Generic.type.4ce]
+// CHECK:STDOUT:       %Generic.type: type = facet_type <@Generic, @Generic(constants.%B)> [concrete = constants.%Generic.type.cc2]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc10_6.2: %Generic.type.4ce = bind_symbolic_name T, 0 [symbolic = %T.loc10_6.1 (constants.%T.bae)]
+// CHECK:STDOUT:     %T.loc10_6.2: %Generic.type.cc2 = bind_symbolic_name T, 0 [symbolic = %T.loc10_6.1 (constants.%T.990)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -443,11 +443,11 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %T.loc4_19.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_19.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%T.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.91c)]
-// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.91c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee)]
+// CHECK:STDOUT:   %Generic.type: type = facet_type <@Generic, @Generic(%T.loc4_19.1)> [symbolic = %Generic.type (constants.%Generic.type.404)]
+// CHECK:STDOUT:   %Self.2: @Generic.%Generic.type (%Generic.type.404) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.91c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.dee)]
+// CHECK:STDOUT:     %Self.1: @Generic.%Generic.type (%Generic.type.404) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.f48)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -471,21 +471,21 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   .Self = constants.%B
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @F(%T.loc9_6.2: %Generic.type.c7c) {
-// CHECK:STDOUT:   %T.loc9_6.1: %Generic.type.c7c = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.a53)]
+// CHECK:STDOUT: generic fn @F(%T.loc9_6.2: %Generic.type.902) {
+// CHECK:STDOUT:   %T.loc9_6.1: %Generic.type.902 = bind_symbolic_name T, 0 [symbolic = %T.loc9_6.1 (constants.%T.cc7)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @G(%T.loc10_6.2: %Generic.type.4ce) {
-// CHECK:STDOUT:   %T.loc10_6.1: %Generic.type.4ce = bind_symbolic_name T, 0 [symbolic = %T.loc10_6.1 (constants.%T.bae)]
+// CHECK:STDOUT: generic fn @G(%T.loc10_6.2: %Generic.type.cc2) {
+// CHECK:STDOUT:   %T.loc10_6.1: %Generic.type.cc2 = bind_symbolic_name T, 0 [symbolic = %T.loc10_6.1 (constants.%T.990)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
-// CHECK:STDOUT:     %T.ref: %Generic.type.4ce = name_ref T, %T.loc10_6.2 [symbolic = %T.loc10_6.1 (constants.%T.bae)]
+// CHECK:STDOUT:     %T.ref: %Generic.type.cc2 = name_ref T, %T.loc10_6.2 [symbolic = %T.loc10_6.1 (constants.%T.990)]
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -498,19 +498,19 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %T.loc4_19.1 => constants.%A
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @F(constants.%T.a53) {
-// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.a53
+// CHECK:STDOUT: specific @F(constants.%T.cc7) {
+// CHECK:STDOUT:   %T.loc9_6.1 => constants.%T.cc7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @Generic(constants.%B) {
 // CHECK:STDOUT:   %T.loc4_19.1 => constants.%B
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.4ce
-// CHECK:STDOUT:   %Self.2 => constants.%Self.52f
+// CHECK:STDOUT:   %Generic.type => constants.%Generic.type.cc2
+// CHECK:STDOUT:   %Self.2 => constants.%Self.768
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @G(constants.%T.bae) {
-// CHECK:STDOUT:   %T.loc10_6.1 => constants.%T.bae
+// CHECK:STDOUT: specific @G(constants.%T.990) {
+// CHECK:STDOUT:   %T.loc10_6.1 => constants.%T.990
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/generic_import.carbon b/toolchain/check/testdata/interface/generic_import.carbon
index c87381e64ee6..ccae53ebe15b 100644
--- a/toolchain/check/testdata/interface/generic_import.carbon
+++ b/toolchain/check/testdata/interface/generic_import.carbon
@@ -39,8 +39,8 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %AddWith.type.b35: type = generic_interface_type @AddWith [concrete]
 // CHECK:STDOUT:   %AddWith.generic: %AddWith.type.b35 = struct_value () [concrete]
-// CHECK:STDOUT:   %AddWith.type.bc7: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %AddWith.type.bc7 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %AddWith.type.f2c: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %AddWith.type.f2c = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %AddWith.F.type: type = fn_type @AddWith.F, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %AddWith.F: %AddWith.F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %AddWith.assoc_type: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic]
@@ -63,15 +63,15 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %T.loc4_19.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_19.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T.loc4_19.1)> [symbolic = %AddWith.type (constants.%AddWith.type.bc7)]
-// CHECK:STDOUT:   %Self.2: @AddWith.%AddWith.type (%AddWith.type.bc7) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T.loc4_19.1)> [symbolic = %AddWith.type (constants.%AddWith.type.f2c)]
+// CHECK:STDOUT:   %Self.2: @AddWith.%AddWith.type (%AddWith.type.f2c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %AddWith.F.type: type = fn_type @AddWith.F, @AddWith(%T.loc4_19.1) [symbolic = %AddWith.F.type (constants.%AddWith.F.type)]
 // CHECK:STDOUT:   %AddWith.F: @AddWith.%AddWith.F.type (%AddWith.F.type) = struct_value () [symbolic = %AddWith.F (constants.%AddWith.F)]
 // CHECK:STDOUT:   %AddWith.assoc_type: type = assoc_entity_type @AddWith, @AddWith(%T.loc4_19.1) [symbolic = %AddWith.assoc_type (constants.%AddWith.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc5_9.2: @AddWith.%AddWith.assoc_type (%AddWith.assoc_type) = assoc_entity element0, %AddWith.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @AddWith.%AddWith.type (%AddWith.type.bc7) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @AddWith.%AddWith.type (%AddWith.type.f2c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %AddWith.F.decl: @AddWith.%AddWith.F.type (%AddWith.F.type) = fn_decl @AddWith.F [symbolic = @AddWith.%AddWith.F (constants.%AddWith.F)] {} {}
 // CHECK:STDOUT:     %assoc0.loc5_9.1: @AddWith.%AddWith.assoc_type (%AddWith.assoc_type) = assoc_entity element0, %AddWith.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0)]
 // CHECK:STDOUT:
@@ -82,7 +82,7 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AddWith.F(@AddWith.%T.loc4_19.2: type, @AddWith.%Self.1: @AddWith.%AddWith.type (%AddWith.type.bc7)) {
+// CHECK:STDOUT: generic fn @AddWith.F(@AddWith.%T.loc4_19.2: type, @AddWith.%Self.1: @AddWith.%AddWith.type (%AddWith.type.f2c)) {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -101,14 +101,14 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %AddWith.type.b35: type = generic_interface_type @AddWith [concrete]
 // CHECK:STDOUT:   %AddWith.generic: %AddWith.type.b35 = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %AddWith.type.bc7: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.deb: %AddWith.type.bc7 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %AddWith.type.f2c: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.46b: %AddWith.type.f2c = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %AddWith.F.type.fbc: type = fn_type @AddWith.F, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %AddWith.F.be3: %AddWith.F.type.fbc = struct_value () [symbolic]
 // CHECK:STDOUT:   %AddWith.assoc_type.36e: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.6a8: %AddWith.assoc_type.36e = assoc_entity element0, imports.%Main.import_ref.0c5 [symbolic]
-// CHECK:STDOUT:   %AddWith.type.e8e: type = facet_type <@AddWith, @AddWith(%C)> [concrete]
-// CHECK:STDOUT:   %Self.fbb: %AddWith.type.e8e = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %AddWith.type.f66: type = facet_type <@AddWith, @AddWith(%C)> [concrete]
+// CHECK:STDOUT:   %Self.bde: %AddWith.type.f66 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %AddWith.F.type.cd2: type = fn_type @AddWith.F, @AddWith(%C) [concrete]
 // CHECK:STDOUT:   %AddWith.F.b58: %AddWith.F.type.cd2 = struct_value () [concrete]
 // CHECK:STDOUT:   %AddWith.assoc_type.3f0: type = assoc_entity_type @AddWith, @AddWith(%C) [concrete]
@@ -116,17 +116,17 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %AddWith.impl_witness: <witness> = impl_witness file.%AddWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.AddWith.impl.F.type: type = fn_type @C.as.AddWith.impl.F [concrete]
 // CHECK:STDOUT:   %C.as.AddWith.impl.F: %C.as.AddWith.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.e8e = facet_value %C, (%AddWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %AddWith.facet: %AddWith.type.f66 = facet_value %C, (%AddWith.impl_witness) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.AddWith: %AddWith.type.b35 = import_ref Main//a, AddWith, loaded [concrete = constants.%AddWith.generic]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.1: type = import_ref Main//a, loc4_19, loaded [symbolic = @AddWith.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.476 = import_ref Main//a, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.4d4 = import_ref Main//a, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.c77 = import_ref Main//a, loc5_9, unloaded
 // CHECK:STDOUT:   %Main.F: @AddWith.%AddWith.F.type (%AddWith.F.type.fbc) = import_ref Main//a, F, loaded [symbolic = @AddWith.%AddWith.F (constants.%AddWith.F.be3)]
 // CHECK:STDOUT:   %Main.import_ref.5ab3ec.2: type = import_ref Main//a, loc4_19, loaded [symbolic = @AddWith.%T (constants.%T)]
-// CHECK:STDOUT:   %Main.import_ref.5a4: @AddWith.%AddWith.type (%AddWith.type.bc7) = import_ref Main//a, inst27 [no loc], loaded [symbolic = @AddWith.%Self (constants.%Self.deb)]
+// CHECK:STDOUT:   %Main.import_ref.5ad: @AddWith.%AddWith.type (%AddWith.type.f2c) = import_ref Main//a, inst27 [no loc], loaded [symbolic = @AddWith.%Self (constants.%Self.46b)]
 // CHECK:STDOUT:   %Main.import_ref.0c5 = import_ref Main//a, loc5_9, unloaded
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -141,7 +141,7 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:     %C.ref.loc7_6: type = name_ref C, file.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:     %AddWith.ref: %AddWith.type.b35 = name_ref AddWith, imports.%Main.AddWith [concrete = constants.%AddWith.generic]
 // CHECK:STDOUT:     %C.ref.loc7_19: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %AddWith.type: type = facet_type <@AddWith, @AddWith(constants.%C)> [concrete = constants.%AddWith.type.e8e]
+// CHECK:STDOUT:     %AddWith.type: type = facet_type <@AddWith, @AddWith(constants.%C)> [concrete = constants.%AddWith.type.f66]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AddWith.impl_witness_table = impl_witness_table (@C.as.AddWith.impl.%C.as.AddWith.impl.F.decl), @C.as.AddWith.impl [concrete]
 // CHECK:STDOUT:   %AddWith.impl_witness: <witness> = impl_witness %AddWith.impl_witness_table [concrete = constants.%AddWith.impl_witness]
@@ -151,8 +151,8 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.bc7)]
-// CHECK:STDOUT:   %Self: @AddWith.%AddWith.type (%AddWith.type.bc7) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.deb)]
+// CHECK:STDOUT:   %AddWith.type: type = facet_type <@AddWith, @AddWith(%T)> [symbolic = %AddWith.type (constants.%AddWith.type.f2c)]
+// CHECK:STDOUT:   %Self: @AddWith.%AddWith.type (%AddWith.type.f2c) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.46b)]
 // CHECK:STDOUT:   %AddWith.F.type: type = fn_type @AddWith.F, @AddWith(%T) [symbolic = %AddWith.F.type (constants.%AddWith.F.type.fbc)]
 // CHECK:STDOUT:   %AddWith.F: @AddWith.%AddWith.F.type (%AddWith.F.type.fbc) = struct_value () [symbolic = %AddWith.F (constants.%AddWith.F.be3)]
 // CHECK:STDOUT:   %AddWith.assoc_type: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic = %AddWith.assoc_type (constants.%AddWith.assoc_type.36e)]
@@ -160,7 +160,7 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Main.import_ref.476
+// CHECK:STDOUT:     .Self = imports.%Main.import_ref.4d4
 // CHECK:STDOUT:     .F = imports.%Main.import_ref.c77
 // CHECK:STDOUT:     witness = (imports.%Main.F)
 // CHECK:STDOUT:   }
@@ -182,7 +182,7 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   .Self = constants.%C
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AddWith.F(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.5a4: @AddWith.%AddWith.type (%AddWith.type.bc7)) [from "a.carbon"] {
+// CHECK:STDOUT: generic fn @AddWith.F(imports.%Main.import_ref.5ab3ec.2: type, imports.%Main.import_ref.5ad: @AddWith.%AddWith.type (%AddWith.type.f2c)) [from "a.carbon"] {
 // CHECK:STDOUT:   fn;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -195,14 +195,14 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AddWith.F(constants.%T, constants.%Self.deb) {}
+// CHECK:STDOUT: specific @AddWith.F(constants.%T, constants.%Self.46b) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @AddWith(constants.%C) {
 // CHECK:STDOUT:   %T => constants.%C
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.e8e
-// CHECK:STDOUT:   %Self => constants.%Self.fbb
+// CHECK:STDOUT:   %AddWith.type => constants.%AddWith.type.f66
+// CHECK:STDOUT:   %Self => constants.%Self.bde
 // CHECK:STDOUT:   %AddWith.F.type => constants.%AddWith.F.type.cd2
 // CHECK:STDOUT:   %AddWith.F => constants.%AddWith.F.b58
 // CHECK:STDOUT:   %AddWith.assoc_type => constants.%AddWith.assoc_type.3f0
diff --git a/toolchain/check/testdata/interface/generic_method.carbon b/toolchain/check/testdata/interface/generic_method.carbon
index 9963c89097db..e4e16bfbd2ab 100644
--- a/toolchain/check/testdata/interface/generic_method.carbon
+++ b/toolchain/check/testdata/interface/generic_method.carbon
@@ -90,14 +90,14 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %A.type.495: type = generic_interface_type @A [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.generic: %A.type.495 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.75a: type = facet_type <@A, @A(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.753: %A.type.75a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %A.type.806: type = facet_type <@A, @A(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.b74: %A.type.806 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %U.2cb: type = bind_symbolic_name U, 2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %U.2cb [symbolic]
-// CHECK:STDOUT:   %tuple.type.e59: type = tuple_type (type, %A.type.75a, type) [symbolic]
-// CHECK:STDOUT:   %Self.as_type.81d: type = facet_access_type %Self.753 [symbolic]
-// CHECK:STDOUT:   %tuple.type.bd2: type = tuple_type (%T.8b3, %Self.as_type.81d, %U.2cb) [symbolic]
-// CHECK:STDOUT:   %pattern_type.44c: type = pattern_type %tuple.type.bd2 [symbolic]
+// CHECK:STDOUT:   %tuple.type.4c5: type = tuple_type (type, %A.type.806, type) [symbolic]
+// CHECK:STDOUT:   %Self.as_type.327: type = facet_access_type %Self.b74 [symbolic]
+// CHECK:STDOUT:   %tuple.type.6ec: type = tuple_type (%T.8b3, %Self.as_type.327, %U.2cb) [symbolic]
+// CHECK:STDOUT:   %pattern_type.e2e: type = pattern_type %tuple.type.6ec [symbolic]
 // CHECK:STDOUT:   %A.F.type.17a: type = fn_type @A.F, @A(%T.8b3) [symbolic]
 // CHECK:STDOUT:   %A.F.0d8: %A.F.type.17a = struct_value () [symbolic]
 // CHECK:STDOUT:   %A.assoc_type.ed3: type = assoc_entity_type @A, @A(%T.8b3) [symbolic]
@@ -106,7 +106,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.807: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.286: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d17: type = ptr_type %X [concrete]
 // CHECK:STDOUT:   %pattern_type.1c6: type = pattern_type %ptr.d17 [concrete]
 // CHECK:STDOUT:   %X.as.Destroy.impl.Op.type: type = fn_type @X.as.Destroy.impl.Op [concrete]
@@ -114,19 +114,19 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Y: type = class_type @Y [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.621: <witness> = impl_witness @Y.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.ad0: <witness> = impl_witness @Y.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.455: type = ptr_type %Y [concrete]
 // CHECK:STDOUT:   %pattern_type.0ae: type = pattern_type %ptr.455 [concrete]
 // CHECK:STDOUT:   %Y.as.Destroy.impl.Op.type: type = fn_type @Y.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Y.as.Destroy.impl.Op: %Y.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Z: type = class_type @Z [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2a0: <witness> = impl_witness @Z.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.417: <witness> = impl_witness @Z.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.fb6: type = ptr_type %Z [concrete]
 // CHECK:STDOUT:   %pattern_type.f76: type = pattern_type %ptr.fb6 [concrete]
 // CHECK:STDOUT:   %Z.as.Destroy.impl.Op.type: type = fn_type @Z.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Z.as.Destroy.impl.Op: %Z.as.Destroy.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.91f: type = facet_type <@A, @A(%X)> [concrete]
-// CHECK:STDOUT:   %Self.1bb: %A.type.91f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %A.type.515: type = facet_type <@A, @A(%X)> [concrete]
+// CHECK:STDOUT:   %Self.522: %A.type.515 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %A.F.type.13d: type = fn_type @A.F, @A(%X) [concrete]
 // CHECK:STDOUT:   %A.F.d83: %A.F.type.13d = struct_value () [concrete]
 // CHECK:STDOUT:   %A.assoc_type.296: type = assoc_entity_type @A, @A(%X) [concrete]
@@ -139,8 +139,8 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %pattern_type.340: type = pattern_type %tuple.type.765 [symbolic]
 // CHECK:STDOUT:   %Y.as.A.impl.F.type: type = fn_type @Y.as.A.impl.F [concrete]
 // CHECK:STDOUT:   %Y.as.A.impl.F: %Y.as.A.impl.F.type = struct_value () [concrete]
-// CHECK:STDOUT:   %A.facet.552: %A.type.91f = facet_value %Y, (%A.impl_witness) [concrete]
-// CHECK:STDOUT:   %tuple.type.a0c: type = tuple_type (type, %A.type.91f, type) [concrete]
+// CHECK:STDOUT:   %A.facet.f2b: %A.type.515 = facet_value %Y, (%A.impl_witness) [concrete]
+// CHECK:STDOUT:   %tuple.type.281: type = tuple_type (type, %A.type.515, type) [concrete]
 // CHECK:STDOUT:   %require_complete.816: <witness> = require_complete_type %tuple.type.765 [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %U.8b3 [symbolic]
 // CHECK:STDOUT:   %tuple.type.a41: type = tuple_type (%empty_struct_type, %empty_struct_type, %U.8b3) [symbolic]
@@ -148,45 +148,45 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Y.val: %Y = struct_value () [concrete]
 // CHECK:STDOUT:   %Call.type: type = fn_type @Call [concrete]
 // CHECK:STDOUT:   %Call: %Call.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.a60: type = fn_type_with_self_type %A.F.type.13d, %A.facet.552 [concrete]
+// CHECK:STDOUT:   %.7c0: type = fn_type_with_self_type %A.F.type.13d, %A.facet.f2b [concrete]
 // CHECK:STDOUT:   %pattern_type.8f9: type = pattern_type %Z [concrete]
 // CHECK:STDOUT:   %tuple.type.f6b: type = tuple_type (%X, %Y, %Z) [concrete]
 // CHECK:STDOUT:   %pattern_type.ef1: type = pattern_type %tuple.type.f6b [concrete]
 // CHECK:STDOUT:   %Y.as.A.impl.F.specific_fn: <specific function> = specific_function %Y.as.A.impl.F, @Y.as.A.impl.F(%Z) [concrete]
 // CHECK:STDOUT:   %Z.val: %Z = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.bc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.46f: %T.as.Destroy.impl.Op.type.bc9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.955: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%tuple.type.f6b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.495: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.f6b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.51a: %T.as.Destroy.impl.Op.type.495 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.305: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e3a: %T.as.Destroy.impl.Op.type.305 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.324: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%tuple.type.f6b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.6ad: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.f6b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.47b: %T.as.Destroy.impl.Op.type.6ad = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.959: type = ptr_type %tuple.type.f6b [concrete]
 // CHECK:STDOUT:   %complete_type.456: <witness> = complete_type_witness %ptr.959 [concrete]
-// CHECK:STDOUT:   %Destroy.facet.1f2: %Destroy.type = facet_value %tuple.type.f6b, (%Destroy.impl_witness.955) [concrete]
-// CHECK:STDOUT:   %.a86: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.1f2 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.51a, @T.as.Destroy.impl.Op(%tuple.type.f6b) [concrete]
-// CHECK:STDOUT:   %T.9c2: %A.type.91f = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.817: type = pattern_type %A.type.91f [concrete]
+// CHECK:STDOUT:   %Destroy.facet.0e8: %Destroy.type = facet_value %tuple.type.f6b, (%Destroy.impl_witness.324) [concrete]
+// CHECK:STDOUT:   %.c95: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.0e8 [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.47b, @T.as.Destroy.impl.Op(%tuple.type.f6b) [concrete]
+// CHECK:STDOUT:   %T.3b6: %A.type.515 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.05f: type = pattern_type %A.type.515 [concrete]
 // CHECK:STDOUT:   %CallGeneric.type: type = fn_type @CallGeneric [concrete]
 // CHECK:STDOUT:   %CallGeneric: %CallGeneric.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.9c2 [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.9c2, @A, @A(%X) [symbolic]
-// CHECK:STDOUT:   %A.facet.11f: %A.type.91f = facet_value %T.as_type, (%A.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.ffa: type = fn_type_with_self_type %A.F.type.13d, %A.facet.11f [symbolic]
-// CHECK:STDOUT:   %impl.elem0.0e5: %.ffa = impl_witness_access %A.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %tuple.type.e28: type = tuple_type (%X, %T.as_type, %Z) [symbolic]
-// CHECK:STDOUT:   %pattern_type.f25: type = pattern_type %tuple.type.e28 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.e7e: <specific function> = specific_impl_function %impl.elem0.0e5, @A.F(%X, %A.facet.11f, %Z) [symbolic]
-// CHECK:STDOUT:   %require_complete.500: <witness> = require_complete_type %tuple.type.e28 [symbolic]
-// CHECK:STDOUT:   %ptr.103: type = ptr_type %tuple.type.e28 [symbolic]
-// CHECK:STDOUT:   %require_complete.8d3: <witness> = require_complete_type %ptr.103 [symbolic]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %tuple.type.e28, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.1a6: %Destroy.type = facet_value %tuple.type.e28, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.efa: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.1a6 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.305: %.efa = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.52a: <specific function> = specific_impl_function %impl.elem0.305, @Destroy.Op(%Destroy.facet.1a6) [symbolic]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.3b6 [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.3b6, @A, @A(%X) [symbolic]
+// CHECK:STDOUT:   %A.facet.97b: %A.type.515 = facet_value %T.as_type, (%A.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.7c8: type = fn_type_with_self_type %A.F.type.13d, %A.facet.97b [symbolic]
+// CHECK:STDOUT:   %impl.elem0.eda: %.7c8 = impl_witness_access %A.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %tuple.type.379: type = tuple_type (%X, %T.as_type, %Z) [symbolic]
+// CHECK:STDOUT:   %pattern_type.fcb: type = pattern_type %tuple.type.379 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.9ce: <specific function> = specific_impl_function %impl.elem0.eda, @A.F(%X, %A.facet.97b, %Z) [symbolic]
+// CHECK:STDOUT:   %require_complete.d0c: <witness> = require_complete_type %tuple.type.379 [symbolic]
+// CHECK:STDOUT:   %ptr.e41: type = ptr_type %tuple.type.379 [symbolic]
+// CHECK:STDOUT:   %require_complete.1f9: <witness> = require_complete_type %ptr.e41 [symbolic]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %tuple.type.379, @Destroy [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.a89: %Destroy.type = facet_value %tuple.type.379, (%Destroy.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.a0b: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.a89 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.80a: %.a0b = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.515: <specific function> = specific_impl_function %impl.elem0.80a, @Destroy.Op(%Destroy.facet.a89) [symbolic]
 // CHECK:STDOUT:   %CallIndirect.type: type = fn_type @CallIndirect [concrete]
 // CHECK:STDOUT:   %CallIndirect: %CallIndirect.type = struct_value () [concrete]
-// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric, @CallGeneric(%A.facet.552) [concrete]
+// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric, @CallGeneric(%A.facet.f2b) [concrete]
 // CHECK:STDOUT:   %complete_type.a64: <witness> = complete_type_witness %tuple.type.f6b [concrete]
 // CHECK:STDOUT:   %tuple.type.9c8: type = tuple_type (%empty_struct_type, %empty_struct_type, %Z) [concrete]
 // CHECK:STDOUT: }
@@ -198,8 +198,8 @@ fn CallIndirect() {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Core.import_ref.0b9: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.46f)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @T.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.efe: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.305) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.e3a)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.efe), @T.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -227,21 +227,21 @@ fn CallIndirect() {
 // CHECK:STDOUT:     %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y]
 // CHECK:STDOUT:     %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:     %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.91f]
+// CHECK:STDOUT:     %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.515]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %A.impl_witness_table = impl_witness_table (@Y.as.A.impl.%Y.as.A.impl.F.decl), @Y.as.A.impl [concrete]
 // CHECK:STDOUT:   %A.impl_witness: <witness> = impl_witness %A.impl_witness_table [concrete = constants.%A.impl_witness]
 // CHECK:STDOUT:   %Call.decl: %Call.type = fn_decl @Call [concrete = constants.%Call] {} {}
 // CHECK:STDOUT:   %CallGeneric.decl: %CallGeneric.type = fn_decl @CallGeneric [concrete = constants.%CallGeneric] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.817 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.05f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc25: type = splice_block %A.type [concrete = constants.%A.type.91f] {
+// CHECK:STDOUT:     %.loc25: type = splice_block %A.type [concrete = constants.%A.type.515] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:       %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:       %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.91f]
+// CHECK:STDOUT:       %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.515]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc25_16.2: %A.type.91f = bind_symbolic_name T, 0 [symbolic = %T.loc25_16.1 (constants.%T.9c2)]
+// CHECK:STDOUT:     %T.loc25_16.2: %A.type.515 = bind_symbolic_name T, 0 [symbolic = %T.loc25_16.1 (constants.%T.3b6)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %CallIndirect.decl: %CallIndirect.type = fn_decl @CallIndirect [concrete = constants.%CallIndirect] {} {}
 // CHECK:STDOUT: }
@@ -250,37 +250,37 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %T.loc5_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc5_13.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T.loc5_13.1)> [symbolic = %A.type (constants.%A.type.75a)]
-// CHECK:STDOUT:   %Self.2: @A.%A.type (%A.type.75a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.753)]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T.loc5_13.1)> [symbolic = %A.type (constants.%A.type.806)]
+// CHECK:STDOUT:   %Self.2: @A.%A.type (%A.type.806) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b74)]
 // CHECK:STDOUT:   %A.F.type: type = fn_type @A.F, @A(%T.loc5_13.1) [symbolic = %A.F.type (constants.%A.F.type.17a)]
 // CHECK:STDOUT:   %A.F: @A.%A.F.type (%A.F.type.17a) = struct_value () [symbolic = %A.F (constants.%A.F.0d8)]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A, @A(%T.loc5_13.1) [symbolic = %A.assoc_type (constants.%A.assoc_type.ed3)]
 // CHECK:STDOUT:   %assoc0.loc6_39.2: @A.%A.assoc_type (%A.assoc_type.ed3) = assoc_entity element0, %A.F.decl [symbolic = %assoc0.loc6_39.2 (constants.%assoc0.fcb)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @A.%A.type (%A.type.75a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.753)]
+// CHECK:STDOUT:     %Self.1: @A.%A.type (%A.type.806) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b74)]
 // CHECK:STDOUT:     %A.F.decl: @A.%A.F.type (%A.F.type.17a) = fn_decl @A.F [symbolic = @A.%A.F (constants.%A.F.0d8)] {
 // CHECK:STDOUT:       %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 2 [concrete]
 // CHECK:STDOUT:       %u.patt: @A.F.%pattern_type.loc6_18 (%pattern_type.20f) = binding_pattern u [concrete]
 // CHECK:STDOUT:       %u.param_patt: @A.F.%pattern_type.loc6_18 (%pattern_type.20f) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:       %return.patt: @A.F.%pattern_type.loc6_24 (%pattern_type.44c) = return_slot_pattern [concrete]
-// CHECK:STDOUT:       %return.param_patt: @A.F.%pattern_type.loc6_24 (%pattern_type.44c) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:       %return.patt: @A.F.%pattern_type.loc6_24 (%pattern_type.e2e) = return_slot_pattern [concrete]
+// CHECK:STDOUT:       %return.param_patt: @A.F.%pattern_type.loc6_24 (%pattern_type.e2e) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @A.%T.loc5_13.2 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:       %.loc6_31: @A.F.%A.type (%A.type.75a) = specific_constant @A.%Self.1, @A(constants.%T.8b3) [symbolic = %Self (constants.%Self.753)]
-// CHECK:STDOUT:       %Self.ref: @A.F.%A.type (%A.type.75a) = name_ref Self, %.loc6_31 [symbolic = %Self (constants.%Self.753)]
+// CHECK:STDOUT:       %.loc6_31: @A.F.%A.type (%A.type.806) = specific_constant @A.%Self.1, @A(constants.%T.8b3) [symbolic = %Self (constants.%Self.b74)]
+// CHECK:STDOUT:       %Self.ref: @A.F.%A.type (%A.type.806) = name_ref Self, %.loc6_31 [symbolic = %Self (constants.%Self.b74)]
 // CHECK:STDOUT:       %U.ref.loc6_37: type = name_ref U, %U.loc6_8.2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
-// CHECK:STDOUT:       %.loc6_38.1: @A.F.%tuple.type.loc6_38.1 (%tuple.type.e59) = tuple_literal (%T.ref, %Self.ref, %U.ref.loc6_37)
-// CHECK:STDOUT:       %Self.as_type.loc6_38.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.81d)]
-// CHECK:STDOUT:       %.loc6_38.2: type = converted %Self.ref, %Self.as_type.loc6_38.2 [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.81d)]
-// CHECK:STDOUT:       %.loc6_38.3: type = converted %.loc6_38.1, constants.%tuple.type.bd2 [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.bd2)]
+// CHECK:STDOUT:       %.loc6_38.1: @A.F.%tuple.type.loc6_38.1 (%tuple.type.4c5) = tuple_literal (%T.ref, %Self.ref, %U.ref.loc6_37)
+// CHECK:STDOUT:       %Self.as_type.loc6_38.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.327)]
+// CHECK:STDOUT:       %.loc6_38.2: type = converted %Self.ref, %Self.as_type.loc6_38.2 [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.327)]
+// CHECK:STDOUT:       %.loc6_38.3: type = converted %.loc6_38.1, constants.%tuple.type.6ec [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.6ec)]
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %U.loc6_8.2: type = bind_symbolic_name U, 2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
 // CHECK:STDOUT:       %u.param: @A.F.%U.loc6_8.1 (%U.2cb) = value_param call_param0
 // CHECK:STDOUT:       %U.ref.loc6_21: type = name_ref U, %U.loc6_8.2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
 // CHECK:STDOUT:       %u: @A.F.%U.loc6_8.1 (%U.2cb) = bind_name u, %u.param
-// CHECK:STDOUT:       %return.param: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.bd2) = out_param call_param1
-// CHECK:STDOUT:       %return: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.bd2) = return_slot %return.param
+// CHECK:STDOUT:       %return.param: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.6ec) = out_param call_param1
+// CHECK:STDOUT:       %return: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.6ec) = return_slot %return.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %assoc0.loc6_39.1: @A.%A.assoc_type (%A.assoc_type.ed3) = assoc_entity element0, %A.F.decl [symbolic = %assoc0.loc6_39.2 (constants.%assoc0.fcb)]
 // CHECK:STDOUT:
@@ -373,7 +373,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%X [concrete = constants.%X]
 // CHECK:STDOUT:   impl_decl @X.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@X.as.Destroy.impl.%X.as.Destroy.impl.Op.decl), @X.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.807]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.286]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -385,7 +385,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Y [concrete = constants.%Y]
 // CHECK:STDOUT:   impl_decl @Y.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Y.as.Destroy.impl.%Y.as.Destroy.impl.Op.decl), @Y.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.621]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.ad0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -397,7 +397,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Z [concrete = constants.%Z]
 // CHECK:STDOUT:   impl_decl @Z.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Z.as.Destroy.impl.%Z.as.Destroy.impl.Op.decl), @Z.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2a0]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.417]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -405,18 +405,18 @@ fn CallIndirect() {
 // CHECK:STDOUT:   .Self = constants.%Z
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @A.F(@A.%T.loc5_13.2: type, @A.%Self.1: @A.%A.type (%A.type.75a), %U.loc6_8.2: type) {
+// CHECK:STDOUT: generic fn @A.F(@A.%T.loc5_13.2: type, @A.%Self.1: @A.%A.type (%A.type.806), %U.loc6_8.2: type) {
 // CHECK:STDOUT:   %U.loc6_8.1: type = bind_symbolic_name U, 2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
 // CHECK:STDOUT:   %pattern_type.loc6_18: type = pattern_type %U.loc6_8.1 [symbolic = %pattern_type.loc6_18 (constants.%pattern_type.20f)]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T)> [symbolic = %A.type (constants.%A.type.75a)]
-// CHECK:STDOUT:   %Self: @A.F.%A.type (%A.type.75a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.753)]
-// CHECK:STDOUT:   %tuple.type.loc6_38.1: type = tuple_type (type, %A.type, type) [symbolic = %tuple.type.loc6_38.1 (constants.%tuple.type.e59)]
-// CHECK:STDOUT:   %Self.as_type.loc6_38.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.81d)]
-// CHECK:STDOUT:   %tuple.type.loc6_38.2: type = tuple_type (%T, %Self.as_type.loc6_38.1, %U.loc6_8.1) [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.bd2)]
-// CHECK:STDOUT:   %pattern_type.loc6_24: type = pattern_type %tuple.type.loc6_38.2 [symbolic = %pattern_type.loc6_24 (constants.%pattern_type.44c)]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T)> [symbolic = %A.type (constants.%A.type.806)]
+// CHECK:STDOUT:   %Self: @A.F.%A.type (%A.type.806) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.b74)]
+// CHECK:STDOUT:   %tuple.type.loc6_38.1: type = tuple_type (type, %A.type, type) [symbolic = %tuple.type.loc6_38.1 (constants.%tuple.type.4c5)]
+// CHECK:STDOUT:   %Self.as_type.loc6_38.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.327)]
+// CHECK:STDOUT:   %tuple.type.loc6_38.2: type = tuple_type (%T, %Self.as_type.loc6_38.1, %U.loc6_8.1) [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.6ec)]
+// CHECK:STDOUT:   %pattern_type.loc6_24: type = pattern_type %tuple.type.loc6_38.2 [symbolic = %pattern_type.loc6_24 (constants.%pattern_type.e2e)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @A.F.%U.loc6_8.1 (%U.2cb)) -> @A.F.%tuple.type.loc6_38.2 (%tuple.type.bd2);
+// CHECK:STDOUT:   fn(%u.param: @A.F.%U.loc6_8.1 (%U.2cb)) -> @A.F.%tuple.type.loc6_38.2 (%tuple.type.6ec);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @X.as.Destroy.impl.Op(%self.param: %ptr.d17) = "no_op";
@@ -461,14 +461,14 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y]
 // CHECK:STDOUT:   %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:   %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.91f]
-// CHECK:STDOUT:   %A.facet: %A.type.91f = facet_value constants.%Y, (constants.%A.impl_witness) [concrete = constants.%A.facet.552]
-// CHECK:STDOUT:   %.loc22_6: %A.type.91f = converted %Y.ref, %A.facet [concrete = constants.%A.facet.552]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.515]
+// CHECK:STDOUT:   %A.facet: %A.type.515 = facet_value constants.%Y, (constants.%A.impl_witness) [concrete = constants.%A.facet.f2b]
+// CHECK:STDOUT:   %.loc22_6: %A.type.515 = converted %Y.ref, %A.facet [concrete = constants.%A.facet.f2b]
 // CHECK:STDOUT:   %.loc22_14.1: %A.assoc_type.296 = specific_constant @A.%assoc0.loc6_39.1, @A(constants.%X) [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:   %F.ref: %A.assoc_type.296 = name_ref F, %.loc22_14.1 [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %.loc22_6 [concrete = constants.%Y]
 // CHECK:STDOUT:   %.loc22_14.2: type = converted %.loc22_6, %as_type [concrete = constants.%Y]
-// CHECK:STDOUT:   %impl.elem0: %.a60 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%Y.as.A.impl.F]
+// CHECK:STDOUT:   %impl.elem0: %.7c0 = impl_witness_access constants.%A.impl_witness, element0 [concrete = constants.%Y.as.A.impl.F]
 // CHECK:STDOUT:   %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z]
 // CHECK:STDOUT:   %.loc22_21.1: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Y.as.A.impl.F(constants.%Z) [concrete = constants.%Y.as.A.impl.F.specific_fn]
@@ -480,8 +480,8 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %.loc22_21.6: %Z = bind_value %.loc22_21.5
 // CHECK:STDOUT:   %Y.as.A.impl.F.call: init %tuple.type.f6b = call %specific_fn(%.loc22_21.6) to %.loc22_22.1
 // CHECK:STDOUT:   %.loc22_22.2: ref %tuple.type.f6b = temporary %.loc22_22.1, %Y.as.A.impl.F.call
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc22_22.2, constants.%T.as.Destroy.impl.Op.51a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.51a, @T.as.Destroy.impl.Op(constants.%tuple.type.f6b) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc22_22.2, constants.%T.as.Destroy.impl.Op.47b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.47b, @T.as.Destroy.impl.Op(constants.%tuple.type.f6b) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc22_22.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc22_22: %ptr.959 = addr_of %.loc22_22.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc22_22)
@@ -491,50 +491,50 @@ fn CallIndirect() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGeneric(%T.loc25_16.2: %A.type.91f) {
-// CHECK:STDOUT:   %T.loc25_16.1: %A.type.91f = bind_symbolic_name T, 0 [symbolic = %T.loc25_16.1 (constants.%T.9c2)]
+// CHECK:STDOUT: generic fn @CallGeneric(%T.loc25_16.2: %A.type.515) {
+// CHECK:STDOUT:   %T.loc25_16.1: %A.type.515 = bind_symbolic_name T, 0 [symbolic = %T.loc25_16.1 (constants.%T.3b6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T.as_type.loc26_4.2: type = facet_access_type %T.loc25_16.1 [symbolic = %T.as_type.loc26_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc25_16.1, @A, @A(constants.%X) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness)]
-// CHECK:STDOUT:   %A.facet: %A.type.91f = facet_value %T.as_type.loc26_4.2, (%A.lookup_impl_witness) [symbolic = %A.facet (constants.%A.facet.11f)]
-// CHECK:STDOUT:   %.loc26_4.3: type = fn_type_with_self_type constants.%A.F.type.13d, %A.facet [symbolic = %.loc26_4.3 (constants.%.ffa)]
-// CHECK:STDOUT:   %impl.elem0.loc26_4.2: @CallGeneric.%.loc26_4.3 (%.ffa) = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_4.2 (constants.%impl.elem0.0e5)]
-// CHECK:STDOUT:   %specific_impl_fn.loc26_4.2: <specific function> = specific_impl_function %impl.elem0.loc26_4.2, @A.F(constants.%X, %A.facet, constants.%Z) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.e7e)]
-// CHECK:STDOUT:   %tuple.type: type = tuple_type (constants.%X, %T.as_type.loc26_4.2, constants.%Z) [symbolic = %tuple.type (constants.%tuple.type.e28)]
-// CHECK:STDOUT:   %require_complete.loc26_12.1: <witness> = require_complete_type %tuple.type [symbolic = %require_complete.loc26_12.1 (constants.%require_complete.500)]
+// CHECK:STDOUT:   %A.facet: %A.type.515 = facet_value %T.as_type.loc26_4.2, (%A.lookup_impl_witness) [symbolic = %A.facet (constants.%A.facet.97b)]
+// CHECK:STDOUT:   %.loc26_4.3: type = fn_type_with_self_type constants.%A.F.type.13d, %A.facet [symbolic = %.loc26_4.3 (constants.%.7c8)]
+// CHECK:STDOUT:   %impl.elem0.loc26_4.2: @CallGeneric.%.loc26_4.3 (%.7c8) = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_4.2 (constants.%impl.elem0.eda)]
+// CHECK:STDOUT:   %specific_impl_fn.loc26_4.2: <specific function> = specific_impl_function %impl.elem0.loc26_4.2, @A.F(constants.%X, %A.facet, constants.%Z) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.9ce)]
+// CHECK:STDOUT:   %tuple.type: type = tuple_type (constants.%X, %T.as_type.loc26_4.2, constants.%Z) [symbolic = %tuple.type (constants.%tuple.type.379)]
+// CHECK:STDOUT:   %require_complete.loc26_12.1: <witness> = require_complete_type %tuple.type [symbolic = %require_complete.loc26_12.1 (constants.%require_complete.d0c)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %tuple.type, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %tuple.type, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.1a6)]
-// CHECK:STDOUT:   %.loc26_12.5: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc26_12.5 (constants.%.efa)]
-// CHECK:STDOUT:   %impl.elem0.loc26_12.2: @CallGeneric.%.loc26_12.5 (%.efa) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_12.2 (constants.%impl.elem0.305)]
-// CHECK:STDOUT:   %specific_impl_fn.loc26_12.2: <specific function> = specific_impl_function %impl.elem0.loc26_12.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc26_12.2 (constants.%specific_impl_fn.52a)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %tuple.type [symbolic = %ptr (constants.%ptr.103)]
-// CHECK:STDOUT:   %require_complete.loc26_12.2: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc26_12.2 (constants.%require_complete.8d3)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %tuple.type, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.a89)]
+// CHECK:STDOUT:   %.loc26_12.5: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc26_12.5 (constants.%.a0b)]
+// CHECK:STDOUT:   %impl.elem0.loc26_12.2: @CallGeneric.%.loc26_12.5 (%.a0b) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_12.2 (constants.%impl.elem0.80a)]
+// CHECK:STDOUT:   %specific_impl_fn.loc26_12.2: <specific function> = specific_impl_function %impl.elem0.loc26_12.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc26_12.2 (constants.%specific_impl_fn.515)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %tuple.type [symbolic = %ptr (constants.%ptr.e41)]
+// CHECK:STDOUT:   %require_complete.loc26_12.2: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc26_12.2 (constants.%require_complete.1f9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %T.ref: %A.type.91f = name_ref T, %T.loc25_16.2 [symbolic = %T.loc25_16.1 (constants.%T.9c2)]
+// CHECK:STDOUT:     %T.ref: %A.type.515 = name_ref T, %T.loc25_16.2 [symbolic = %T.loc25_16.1 (constants.%T.3b6)]
 // CHECK:STDOUT:     %.loc26_4.1: %A.assoc_type.296 = specific_constant @A.%assoc0.loc6_39.1, @A(constants.%X) [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:     %F.ref: %A.assoc_type.296 = name_ref F, %.loc26_4.1 [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:     %T.as_type.loc26_4.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc26_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc26_4.2: type = converted %T.ref, %T.as_type.loc26_4.1 [symbolic = %T.as_type.loc26_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc26_4.1: @CallGeneric.%.loc26_4.3 (%.ffa) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_4.2 (constants.%impl.elem0.0e5)]
+// CHECK:STDOUT:     %impl.elem0.loc26_4.1: @CallGeneric.%.loc26_4.3 (%.7c8) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_4.2 (constants.%impl.elem0.eda)]
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z]
 // CHECK:STDOUT:     %.loc26_11.1: %empty_struct_type = struct_literal ()
-// CHECK:STDOUT:     %specific_impl_fn.loc26_4.1: <specific function> = specific_impl_function %impl.elem0.loc26_4.1, @A.F(constants.%X, constants.%A.facet.11f, constants.%Z) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.e7e)]
-// CHECK:STDOUT:     %.loc26_12.1: ref @CallGeneric.%tuple.type (%tuple.type.e28) = temporary_storage
+// CHECK:STDOUT:     %specific_impl_fn.loc26_4.1: <specific function> = specific_impl_function %impl.elem0.loc26_4.1, @A.F(constants.%X, constants.%A.facet.97b, constants.%Z) [symbolic = %specific_impl_fn.loc26_4.2 (constants.%specific_impl_fn.9ce)]
+// CHECK:STDOUT:     %.loc26_12.1: ref @CallGeneric.%tuple.type (%tuple.type.379) = temporary_storage
 // CHECK:STDOUT:     %.loc26_11.2: ref %Z = temporary_storage
 // CHECK:STDOUT:     %.loc26_11.3: init %Z = class_init (), %.loc26_11.2 [concrete = constants.%Z.val]
 // CHECK:STDOUT:     %.loc26_11.4: ref %Z = temporary %.loc26_11.2, %.loc26_11.3
 // CHECK:STDOUT:     %.loc26_11.5: ref %Z = converted %.loc26_11.1, %.loc26_11.4
 // CHECK:STDOUT:     %.loc26_11.6: %Z = bind_value %.loc26_11.5
-// CHECK:STDOUT:     %.loc26_12.2: init @CallGeneric.%tuple.type (%tuple.type.e28) = call %specific_impl_fn.loc26_4.1(%.loc26_11.6) to %.loc26_12.1
-// CHECK:STDOUT:     %.loc26_12.3: ref @CallGeneric.%tuple.type (%tuple.type.e28) = temporary %.loc26_12.1, %.loc26_12.2
-// CHECK:STDOUT:     %impl.elem0.loc26_12.1: @CallGeneric.%.loc26_12.5 (%.efa) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_12.2 (constants.%impl.elem0.305)]
+// CHECK:STDOUT:     %.loc26_12.2: init @CallGeneric.%tuple.type (%tuple.type.379) = call %specific_impl_fn.loc26_4.1(%.loc26_11.6) to %.loc26_12.1
+// CHECK:STDOUT:     %.loc26_12.3: ref @CallGeneric.%tuple.type (%tuple.type.379) = temporary %.loc26_12.1, %.loc26_12.2
+// CHECK:STDOUT:     %impl.elem0.loc26_12.1: @CallGeneric.%.loc26_12.5 (%.a0b) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc26_12.2 (constants.%impl.elem0.80a)]
 // CHECK:STDOUT:     %bound_method.loc26_12.1: <bound method> = bound_method %.loc26_12.3, %impl.elem0.loc26_12.1
-// CHECK:STDOUT:     %specific_impl_fn.loc26_12.1: <specific function> = specific_impl_function %impl.elem0.loc26_12.1, @Destroy.Op(constants.%Destroy.facet.1a6) [symbolic = %specific_impl_fn.loc26_12.2 (constants.%specific_impl_fn.52a)]
+// CHECK:STDOUT:     %specific_impl_fn.loc26_12.1: <specific function> = specific_impl_function %impl.elem0.loc26_12.1, @Destroy.Op(constants.%Destroy.facet.a89) [symbolic = %specific_impl_fn.loc26_12.2 (constants.%specific_impl_fn.515)]
 // CHECK:STDOUT:     %bound_method.loc26_12.2: <bound method> = bound_method %.loc26_12.3, %specific_impl_fn.loc26_12.1
-// CHECK:STDOUT:     %addr.loc26_12: @CallGeneric.%ptr (%ptr.103) = addr_of %.loc26_12.3
+// CHECK:STDOUT:     %addr.loc26_12: @CallGeneric.%ptr (%ptr.e41) = addr_of %.loc26_12.3
 // CHECK:STDOUT:     %.loc26_12.4: init %empty_tuple.type = call %bound_method.loc26_12.2(%addr.loc26_12)
 // CHECK:STDOUT:     %Z.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc26_11.4, constants.%Z.as.Destroy.impl.Op
 // CHECK:STDOUT:     %addr.loc26_11: %ptr.fb6 = addr_of %.loc26_11.4
@@ -547,9 +547,9 @@ fn CallIndirect() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %CallGeneric.ref: %CallGeneric.type = name_ref CallGeneric, file.%CallGeneric.decl [concrete = constants.%CallGeneric]
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y]
-// CHECK:STDOUT:   %A.facet: %A.type.91f = facet_value constants.%Y, (constants.%A.impl_witness) [concrete = constants.%A.facet.552]
-// CHECK:STDOUT:   %.loc30: %A.type.91f = converted %Y.ref, %A.facet [concrete = constants.%A.facet.552]
-// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric.ref, @CallGeneric(constants.%A.facet.552) [concrete = constants.%CallGeneric.specific_fn]
+// CHECK:STDOUT:   %A.facet: %A.type.515 = facet_value constants.%Y, (constants.%A.impl_witness) [concrete = constants.%A.facet.f2b]
+// CHECK:STDOUT:   %.loc30: %A.type.515 = converted %Y.ref, %A.facet [concrete = constants.%A.facet.f2b]
+// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric.ref, @CallGeneric(constants.%A.facet.f2b) [concrete = constants.%CallGeneric.specific_fn]
 // CHECK:STDOUT:   %CallGeneric.call: init %empty_tuple.type = call %CallGeneric.specific_fn()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -558,24 +558,24 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%T.8b3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%T.8b3, constants.%Self.753, constants.%U.2cb) {
+// CHECK:STDOUT: specific @A.F(constants.%T.8b3, constants.%Self.b74, constants.%U.2cb) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%U.2cb
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.20f
 // CHECK:STDOUT:   %T => constants.%T.8b3
-// CHECK:STDOUT:   %A.type => constants.%A.type.75a
-// CHECK:STDOUT:   %Self => constants.%Self.753
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.e59
-// CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%Self.as_type.81d
-// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.bd2
-// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.44c
+// CHECK:STDOUT:   %A.type => constants.%A.type.806
+// CHECK:STDOUT:   %Self => constants.%Self.b74
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.4c5
+// CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%Self.as_type.327
+// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.6ec
+// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.e2e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A(constants.%X) {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%X
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self.2 => constants.%Self.1bb
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self.2 => constants.%Self.522
 // CHECK:STDOUT:   %A.F.type => constants.%A.F.type.13d
 // CHECK:STDOUT:   %A.F => constants.%A.F.d83
 // CHECK:STDOUT:   %A.assoc_type => constants.%A.assoc_type.296
@@ -589,13 +589,13 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %pattern_type.loc16_24 => constants.%pattern_type.340
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.552, constants.%U.8b3) {
+// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.f2b, constants.%U.8b3) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%U.8b3
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.7dc
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self => constants.%A.facet.552
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.a0c
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self => constants.%A.facet.f2b
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.281
 // CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%Y
 // CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.765
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.340
@@ -613,50 +613,50 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %tuple.type.loc17 => constants.%tuple.type.9c8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CallGeneric(constants.%T.9c2) {
-// CHECK:STDOUT:   %T.loc25_16.1 => constants.%T.9c2
+// CHECK:STDOUT: specific @CallGeneric(constants.%T.3b6) {
+// CHECK:STDOUT:   %T.loc25_16.1 => constants.%T.3b6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.11f, constants.%Z) {
+// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.97b, constants.%Z) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%Z
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.8f9
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self => constants.%A.facet.11f
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.a0c
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self => constants.%A.facet.97b
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.281
 // CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%T.as_type
-// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.e28
-// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.f25
+// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.379
+// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.fcb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CallGeneric(constants.%A.facet.552) {
-// CHECK:STDOUT:   %T.loc25_16.1 => constants.%A.facet.552
+// CHECK:STDOUT: specific @CallGeneric(constants.%A.facet.f2b) {
+// CHECK:STDOUT:   %T.loc25_16.1 => constants.%A.facet.f2b
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T.as_type.loc26_4.2 => constants.%Y
 // CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.impl_witness
-// CHECK:STDOUT:   %A.facet => constants.%A.facet.552
-// CHECK:STDOUT:   %.loc26_4.3 => constants.%.a60
+// CHECK:STDOUT:   %A.facet => constants.%A.facet.f2b
+// CHECK:STDOUT:   %.loc26_4.3 => constants.%.7c0
 // CHECK:STDOUT:   %impl.elem0.loc26_4.2 => constants.%Y.as.A.impl.F
 // CHECK:STDOUT:   %specific_impl_fn.loc26_4.2 => constants.%Y.as.A.impl.F.specific_fn
 // CHECK:STDOUT:   %tuple.type => constants.%tuple.type.f6b
 // CHECK:STDOUT:   %require_complete.loc26_12.1 => constants.%complete_type.a64
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.955
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.1f2
-// CHECK:STDOUT:   %.loc26_12.5 => constants.%.a86
-// CHECK:STDOUT:   %impl.elem0.loc26_12.2 => constants.%T.as.Destroy.impl.Op.51a
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.324
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.0e8
+// CHECK:STDOUT:   %.loc26_12.5 => constants.%.c95
+// CHECK:STDOUT:   %impl.elem0.loc26_12.2 => constants.%T.as.Destroy.impl.Op.47b
 // CHECK:STDOUT:   %specific_impl_fn.loc26_12.2 => constants.%T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %ptr => constants.%ptr.959
 // CHECK:STDOUT:   %require_complete.loc26_12.2 => constants.%complete_type.456
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.552, constants.%Z) {
+// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.f2b, constants.%Z) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%Z
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.8f9
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self => constants.%A.facet.552
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.a0c
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self => constants.%A.facet.f2b
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.281
 // CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%Y
 // CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.f6b
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.ef1
@@ -671,14 +671,14 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %A.type.495: type = generic_interface_type @A [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %A.generic: %A.type.495 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.75a: type = facet_type <@A, @A(%T.8b3)> [symbolic]
-// CHECK:STDOUT:   %Self.753: %A.type.75a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %A.type.806: type = facet_type <@A, @A(%T.8b3)> [symbolic]
+// CHECK:STDOUT:   %Self.b74: %A.type.806 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %U.2cb: type = bind_symbolic_name U, 2 [symbolic]
 // CHECK:STDOUT:   %pattern_type.20f: type = pattern_type %U.2cb [symbolic]
-// CHECK:STDOUT:   %tuple.type.e59: type = tuple_type (type, %A.type.75a, type) [symbolic]
-// CHECK:STDOUT:   %Self.as_type.81d: type = facet_access_type %Self.753 [symbolic]
-// CHECK:STDOUT:   %tuple.type.bd2: type = tuple_type (%T.8b3, %Self.as_type.81d, %U.2cb) [symbolic]
-// CHECK:STDOUT:   %pattern_type.44c: type = pattern_type %tuple.type.bd2 [symbolic]
+// CHECK:STDOUT:   %tuple.type.4c5: type = tuple_type (type, %A.type.806, type) [symbolic]
+// CHECK:STDOUT:   %Self.as_type.327: type = facet_access_type %Self.b74 [symbolic]
+// CHECK:STDOUT:   %tuple.type.6ec: type = tuple_type (%T.8b3, %Self.as_type.327, %U.2cb) [symbolic]
+// CHECK:STDOUT:   %pattern_type.e2e: type = pattern_type %tuple.type.6ec [symbolic]
 // CHECK:STDOUT:   %A.F.type.17a: type = fn_type @A.F, @A(%T.8b3) [symbolic]
 // CHECK:STDOUT:   %A.F.0d8: %A.F.type.17a = struct_value () [symbolic]
 // CHECK:STDOUT:   %A.assoc_type.ed3: type = assoc_entity_type @A, @A(%T.8b3) [symbolic]
@@ -687,7 +687,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.807: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.286: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d17: type = ptr_type %X [concrete]
 // CHECK:STDOUT:   %pattern_type.1c6: type = pattern_type %ptr.d17 [concrete]
 // CHECK:STDOUT:   %X.as.Destroy.impl.Op.type: type = fn_type @X.as.Destroy.impl.Op [concrete]
@@ -695,19 +695,19 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %Y1: type = class_type @Y1 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.614: <witness> = impl_witness @Y1.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6b0: <witness> = impl_witness @Y1.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.723: type = ptr_type %Y1 [concrete]
 // CHECK:STDOUT:   %pattern_type.273: type = pattern_type %ptr.723 [concrete]
 // CHECK:STDOUT:   %Y1.as.Destroy.impl.Op.type: type = fn_type @Y1.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Y1.as.Destroy.impl.Op: %Y1.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Y2: type = class_type @Y2 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.7b0: <witness> = impl_witness @Y2.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.dbf: <witness> = impl_witness @Y2.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.23d: type = ptr_type %Y2 [concrete]
 // CHECK:STDOUT:   %pattern_type.484: type = pattern_type %ptr.23d [concrete]
 // CHECK:STDOUT:   %Y2.as.Destroy.impl.Op.type: type = fn_type @Y2.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %Y2.as.Destroy.impl.Op: %Y2.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Z: type = class_type @Z [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.2a0: <witness> = impl_witness @Z.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.417: <witness> = impl_witness @Z.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.fb6: type = ptr_type %Z [concrete]
 // CHECK:STDOUT:   %pattern_type.f76: type = pattern_type %ptr.fb6 [concrete]
 // CHECK:STDOUT:   %Z.as.Destroy.impl.Op.type: type = fn_type @Z.as.Destroy.impl.Op [concrete]
@@ -717,80 +717,80 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %W: type = bind_symbolic_name W, 2 [symbolic]
 // CHECK:STDOUT:   %tuple.type.24b: type = tuple_type (type, type) [concrete]
 // CHECK:STDOUT:   %tuple.type.30b: type = tuple_type (%V1, %V2) [symbolic]
-// CHECK:STDOUT:   %A.type.f21: type = facet_type <@A, @A(%W)> [symbolic]
-// CHECK:STDOUT:   %Self.4fe: %A.type.f21 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %A.type.ffa: type = facet_type <@A, @A(%W)> [symbolic]
+// CHECK:STDOUT:   %Self.0b4: %A.type.ffa = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %A.F.type.904: type = fn_type @A.F, @A(%W) [symbolic]
 // CHECK:STDOUT:   %A.F.1ee: %A.F.type.904 = struct_value () [symbolic]
 // CHECK:STDOUT:   %A.assoc_type.b05: type = assoc_entity_type @A, @A(%W) [symbolic]
 // CHECK:STDOUT:   %assoc0.c82: %A.assoc_type.b05 = assoc_entity element0, @A.%A.F.decl [symbolic]
-// CHECK:STDOUT:   %require_complete.796: <witness> = require_complete_type %A.type.f21 [symbolic]
-// CHECK:STDOUT:   %A.impl_witness.f15: <witness> = impl_witness file.%A.impl_witness_table, @tuple.type.as.A.impl(%V1, %V2, %W) [symbolic]
+// CHECK:STDOUT:   %require_complete.116: <witness> = require_complete_type %A.type.ffa [symbolic]
+// CHECK:STDOUT:   %A.impl_witness.3ab: <witness> = impl_witness file.%A.impl_witness_table, @tuple.type.as.A.impl(%V1, %V2, %W) [symbolic]
 // CHECK:STDOUT:   %U.753: type = bind_symbolic_name U, 3 [symbolic]
 // CHECK:STDOUT:   %pattern_type.549: type = pattern_type %U.753 [symbolic]
 // CHECK:STDOUT:   %tuple.type.11f: type = tuple_type (type, %tuple.type.24b, type) [concrete]
 // CHECK:STDOUT:   %tuple.type.8ae: type = tuple_type (%W, %tuple.type.30b, %U.753) [symbolic]
 // CHECK:STDOUT:   %pattern_type.d4a: type = pattern_type %tuple.type.8ae [symbolic]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type.b3e: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%V1, %V2, %W) [symbolic]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.d79: %tuple.type.as.A.impl.F.type.b3e = struct_value () [symbolic]
-// CHECK:STDOUT:   %A.facet.461: %A.type.f21 = facet_value %tuple.type.30b, (%A.impl_witness.f15) [symbolic]
-// CHECK:STDOUT:   %tuple.type.136: type = tuple_type (type, %A.type.f21, type) [symbolic]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type.dac: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%V1, %V2, %W) [symbolic]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.9d5: %tuple.type.as.A.impl.F.type.dac = struct_value () [symbolic]
+// CHECK:STDOUT:   %A.facet.b6a: %A.type.ffa = facet_value %tuple.type.30b, (%A.impl_witness.3ab) [symbolic]
+// CHECK:STDOUT:   %tuple.type.6bd: type = tuple_type (type, %A.type.ffa, type) [symbolic]
 // CHECK:STDOUT:   %require_complete.d4d: <witness> = require_complete_type %tuple.type.8ae [symbolic]
 // CHECK:STDOUT:   %require_complete.ed4: <witness> = require_complete_type %U.753 [symbolic]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.7d9: <specific function> = specific_function %tuple.type.as.A.impl.F.d79, @tuple.type.as.A.impl.F(%V1, %V2, %W, %U.753) [symbolic]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.cc7: <specific function> = specific_function %tuple.type.as.A.impl.F.9d5, @tuple.type.as.A.impl.F(%V1, %V2, %W, %U.753) [symbolic]
 // CHECK:STDOUT:   %Call.type: type = fn_type @Call [concrete]
 // CHECK:STDOUT:   %Call: %Call.type = struct_value () [concrete]
 // CHECK:STDOUT:   %tuple.type.a46: type = tuple_type (%Y1, %Y2) [concrete]
-// CHECK:STDOUT:   %A.type.91f: type = facet_type <@A, @A(%X)> [concrete]
-// CHECK:STDOUT:   %Self.1bb: %A.type.91f = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %A.type.515: type = facet_type <@A, @A(%X)> [concrete]
+// CHECK:STDOUT:   %Self.522: %A.type.515 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %A.F.type.13d: type = fn_type @A.F, @A(%X) [concrete]
 // CHECK:STDOUT:   %A.F.d83: %A.F.type.13d = struct_value () [concrete]
 // CHECK:STDOUT:   %A.assoc_type.296: type = assoc_entity_type @A, @A(%X) [concrete]
 // CHECK:STDOUT:   %assoc0.5f6: %A.assoc_type.296 = assoc_entity element0, @A.%A.F.decl [concrete]
-// CHECK:STDOUT:   %complete_type.d76: <witness> = complete_type_witness %A.type.91f [concrete]
-// CHECK:STDOUT:   %A.impl_witness.8ac: <witness> = impl_witness file.%A.impl_witness_table, @tuple.type.as.A.impl(%Y1, %Y2, %X) [concrete]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type.bf7: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%Y1, %Y2, %X) [concrete]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.93b: %tuple.type.as.A.impl.F.type.bf7 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.facet.414: %A.type.91f = facet_value %tuple.type.a46, (%A.impl_witness.8ac) [concrete]
-// CHECK:STDOUT:   %.406: type = fn_type_with_self_type %A.F.type.13d, %A.facet.414 [concrete]
+// CHECK:STDOUT:   %complete_type.1a4: <witness> = complete_type_witness %A.type.515 [concrete]
+// CHECK:STDOUT:   %A.impl_witness.0ca: <witness> = impl_witness file.%A.impl_witness_table, @tuple.type.as.A.impl(%Y1, %Y2, %X) [concrete]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type.490: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%Y1, %Y2, %X) [concrete]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.d69: %tuple.type.as.A.impl.F.type.490 = struct_value () [concrete]
+// CHECK:STDOUT:   %A.facet.2e2: %A.type.515 = facet_value %tuple.type.a46, (%A.impl_witness.0ca) [concrete]
+// CHECK:STDOUT:   %.9db: type = fn_type_with_self_type %A.F.type.13d, %A.facet.2e2 [concrete]
 // CHECK:STDOUT:   %pattern_type.8f9: type = pattern_type %Z [concrete]
 // CHECK:STDOUT:   %tuple.type.415: type = tuple_type (%X, %tuple.type.a46, %Z) [concrete]
 // CHECK:STDOUT:   %pattern_type.0b2: type = pattern_type %tuple.type.415 [concrete]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.79b: <specific function> = specific_function %tuple.type.as.A.impl.F.93b, @tuple.type.as.A.impl.F(%Y1, %Y2, %X, %Z) [concrete]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.6bf: <specific function> = specific_function %tuple.type.as.A.impl.F.d69, @tuple.type.as.A.impl.F(%Y1, %Y2, %X, %Z) [concrete]
 // CHECK:STDOUT:   %Z.val: %Z = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.bc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T.8b3) [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.46f: %T.as.Destroy.impl.Op.type.bc9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.c80: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%tuple.type.415) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2a3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.415) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.66e: %T.as.Destroy.impl.Op.type.2a3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.305: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T.8b3) [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e3a: %T.as.Destroy.impl.Op.type.305 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.c7e: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%tuple.type.415) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.6d0: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.415) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f0c: %T.as.Destroy.impl.Op.type.6d0 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.ad9: type = ptr_type %tuple.type.415 [concrete]
 // CHECK:STDOUT:   %complete_type.e23: <witness> = complete_type_witness %ptr.ad9 [concrete]
-// CHECK:STDOUT:   %Destroy.facet.2b1: %Destroy.type = facet_value %tuple.type.415, (%Destroy.impl_witness.c80) [concrete]
-// CHECK:STDOUT:   %.1b7: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.2b1 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.66e, @T.as.Destroy.impl.Op(%tuple.type.415) [concrete]
-// CHECK:STDOUT:   %T.9c2: %A.type.91f = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.817: type = pattern_type %A.type.91f [concrete]
+// CHECK:STDOUT:   %Destroy.facet.c14: %Destroy.type = facet_value %tuple.type.415, (%Destroy.impl_witness.c7e) [concrete]
+// CHECK:STDOUT:   %.397: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.c14 [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.f0c, @T.as.Destroy.impl.Op(%tuple.type.415) [concrete]
+// CHECK:STDOUT:   %T.3b6: %A.type.515 = bind_symbolic_name T, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.05f: type = pattern_type %A.type.515 [concrete]
 // CHECK:STDOUT:   %CallGeneric.type: type = fn_type @CallGeneric [concrete]
 // CHECK:STDOUT:   %CallGeneric: %CallGeneric.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.9c2 [symbolic]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.9c2, @A, @A(%X) [symbolic]
-// CHECK:STDOUT:   %A.facet.11f: %A.type.91f = facet_value %T.as_type, (%A.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.ffa: type = fn_type_with_self_type %A.F.type.13d, %A.facet.11f [symbolic]
-// CHECK:STDOUT:   %impl.elem0.0e5: %.ffa = impl_witness_access %A.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %tuple.type.a0c: type = tuple_type (type, %A.type.91f, type) [concrete]
-// CHECK:STDOUT:   %tuple.type.e28: type = tuple_type (%X, %T.as_type, %Z) [symbolic]
-// CHECK:STDOUT:   %pattern_type.f25: type = pattern_type %tuple.type.e28 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.e7e: <specific function> = specific_impl_function %impl.elem0.0e5, @A.F(%X, %A.facet.11f, %Z) [symbolic]
-// CHECK:STDOUT:   %require_complete.500: <witness> = require_complete_type %tuple.type.e28 [symbolic]
-// CHECK:STDOUT:   %ptr.103: type = ptr_type %tuple.type.e28 [symbolic]
-// CHECK:STDOUT:   %require_complete.8d3: <witness> = require_complete_type %ptr.103 [symbolic]
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %tuple.type.e28, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.1a6: %Destroy.type = facet_value %tuple.type.e28, (%Destroy.lookup_impl_witness) [symbolic]
-// CHECK:STDOUT:   %.efa: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.1a6 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.305: %.efa = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.52a: <specific function> = specific_impl_function %impl.elem0.305, @Destroy.Op(%Destroy.facet.1a6) [symbolic]
+// CHECK:STDOUT:   %T.as_type: type = facet_access_type %T.3b6 [symbolic]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.3b6, @A, @A(%X) [symbolic]
+// CHECK:STDOUT:   %A.facet.97b: %A.type.515 = facet_value %T.as_type, (%A.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.7c8: type = fn_type_with_self_type %A.F.type.13d, %A.facet.97b [symbolic]
+// CHECK:STDOUT:   %impl.elem0.eda: %.7c8 = impl_witness_access %A.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %tuple.type.281: type = tuple_type (type, %A.type.515, type) [concrete]
+// CHECK:STDOUT:   %tuple.type.379: type = tuple_type (%X, %T.as_type, %Z) [symbolic]
+// CHECK:STDOUT:   %pattern_type.fcb: type = pattern_type %tuple.type.379 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.9ce: <specific function> = specific_impl_function %impl.elem0.eda, @A.F(%X, %A.facet.97b, %Z) [symbolic]
+// CHECK:STDOUT:   %require_complete.d0c: <witness> = require_complete_type %tuple.type.379 [symbolic]
+// CHECK:STDOUT:   %ptr.e41: type = ptr_type %tuple.type.379 [symbolic]
+// CHECK:STDOUT:   %require_complete.1f9: <witness> = require_complete_type %ptr.e41 [symbolic]
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %tuple.type.379, @Destroy [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.a89: %Destroy.type = facet_value %tuple.type.379, (%Destroy.lookup_impl_witness) [symbolic]
+// CHECK:STDOUT:   %.a0b: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.a89 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.80a: %.a0b = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.515: <specific function> = specific_impl_function %impl.elem0.80a, @Destroy.Op(%Destroy.facet.a89) [symbolic]
 // CHECK:STDOUT:   %CallIndirect.type: type = fn_type @CallIndirect [concrete]
 // CHECK:STDOUT:   %CallIndirect: %CallIndirect.type = struct_value () [concrete]
-// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric, @CallGeneric(%A.facet.414) [concrete]
+// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric, @CallGeneric(%A.facet.2e2) [concrete]
 // CHECK:STDOUT:   %complete_type.aa8: <witness> = complete_type_witness %tuple.type.415 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -801,8 +801,8 @@ fn CallIndirect() {
 // CHECK:STDOUT:     import Core//prelude/...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Core.import_ref.0b9: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.46f)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @T.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.efe: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.305) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.e3a)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.efe), @T.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -839,7 +839,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:     %.loc14_53.2: type = converted %.loc14_53.1, constants.%tuple.type.30b [symbolic = %tuple.type (constants.%tuple.type.30b)]
 // CHECK:STDOUT:     %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:     %W.ref: type = name_ref W, %W.loc14_36.2 [symbolic = %W.loc14_36.1 (constants.%W)]
-// CHECK:STDOUT:     %A.type.loc14_61.2: type = facet_type <@A, @A(constants.%W)> [symbolic = %A.type.loc14_61.1 (constants.%A.type.f21)]
+// CHECK:STDOUT:     %A.type.loc14_61.2: type = facet_type <@A, @A(constants.%W)> [symbolic = %A.type.loc14_61.1 (constants.%A.type.ffa)]
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %V1.loc14_14.2: type = bind_symbolic_name V1, 0 [symbolic = %V1.loc14_14.1 (constants.%V1)]
 // CHECK:STDOUT:     %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
@@ -848,18 +848,18 @@ fn CallIndirect() {
 // CHECK:STDOUT:     %W.loc14_36.2: type = bind_symbolic_name W, 2 [symbolic = %W.loc14_36.1 (constants.%W)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %A.impl_witness_table = impl_witness_table (@tuple.type.as.A.impl.%tuple.type.as.A.impl.F.decl), @tuple.type.as.A.impl [concrete]
-// CHECK:STDOUT:   %A.impl_witness: <witness> = impl_witness %A.impl_witness_table, @tuple.type.as.A.impl(constants.%V1, constants.%V2, constants.%W) [symbolic = @tuple.type.as.A.impl.%A.impl_witness (constants.%A.impl_witness.f15)]
+// CHECK:STDOUT:   %A.impl_witness: <witness> = impl_witness %A.impl_witness_table, @tuple.type.as.A.impl(constants.%V1, constants.%V2, constants.%W) [symbolic = @tuple.type.as.A.impl.%A.impl_witness (constants.%A.impl_witness.3ab)]
 // CHECK:STDOUT:   %Call.decl: %Call.type = fn_decl @Call [concrete = constants.%Call] {} {}
 // CHECK:STDOUT:   %CallGeneric.decl: %CallGeneric.type = fn_decl @CallGeneric [concrete = constants.%CallGeneric] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.817 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.05f = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc27: type = splice_block %A.type [concrete = constants.%A.type.91f] {
+// CHECK:STDOUT:     %.loc27: type = splice_block %A.type [concrete = constants.%A.type.515] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:       %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:       %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.91f]
+// CHECK:STDOUT:       %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.515]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %T.loc27_16.2: %A.type.91f = bind_symbolic_name T, 0 [symbolic = %T.loc27_16.1 (constants.%T.9c2)]
+// CHECK:STDOUT:     %T.loc27_16.2: %A.type.515 = bind_symbolic_name T, 0 [symbolic = %T.loc27_16.1 (constants.%T.3b6)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %CallIndirect.decl: %CallIndirect.type = fn_decl @CallIndirect [concrete = constants.%CallIndirect] {} {}
 // CHECK:STDOUT: }
@@ -868,37 +868,37 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %T.loc5_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc5_13.1 (constants.%T.8b3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T.loc5_13.1)> [symbolic = %A.type (constants.%A.type.75a)]
-// CHECK:STDOUT:   %Self.2: @A.%A.type (%A.type.75a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.753)]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T.loc5_13.1)> [symbolic = %A.type (constants.%A.type.806)]
+// CHECK:STDOUT:   %Self.2: @A.%A.type (%A.type.806) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b74)]
 // CHECK:STDOUT:   %A.F.type: type = fn_type @A.F, @A(%T.loc5_13.1) [symbolic = %A.F.type (constants.%A.F.type.17a)]
 // CHECK:STDOUT:   %A.F: @A.%A.F.type (%A.F.type.17a) = struct_value () [symbolic = %A.F (constants.%A.F.0d8)]
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A, @A(%T.loc5_13.1) [symbolic = %A.assoc_type (constants.%A.assoc_type.ed3)]
 // CHECK:STDOUT:   %assoc0.loc6_39.2: @A.%A.assoc_type (%A.assoc_type.ed3) = assoc_entity element0, %A.F.decl [symbolic = %assoc0.loc6_39.2 (constants.%assoc0.fcb)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @A.%A.type (%A.type.75a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.753)]
+// CHECK:STDOUT:     %Self.1: @A.%A.type (%A.type.806) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.b74)]
 // CHECK:STDOUT:     %A.F.decl: @A.%A.F.type (%A.F.type.17a) = fn_decl @A.F [symbolic = @A.%A.F (constants.%A.F.0d8)] {
 // CHECK:STDOUT:       %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 2 [concrete]
 // CHECK:STDOUT:       %u.patt: @A.F.%pattern_type.loc6_18 (%pattern_type.20f) = binding_pattern u [concrete]
 // CHECK:STDOUT:       %u.param_patt: @A.F.%pattern_type.loc6_18 (%pattern_type.20f) = value_param_pattern %u.patt, call_param0 [concrete]
-// CHECK:STDOUT:       %return.patt: @A.F.%pattern_type.loc6_24 (%pattern_type.44c) = return_slot_pattern [concrete]
-// CHECK:STDOUT:       %return.param_patt: @A.F.%pattern_type.loc6_24 (%pattern_type.44c) = out_param_pattern %return.patt, call_param1 [concrete]
+// CHECK:STDOUT:       %return.patt: @A.F.%pattern_type.loc6_24 (%pattern_type.e2e) = return_slot_pattern [concrete]
+// CHECK:STDOUT:       %return.param_patt: @A.F.%pattern_type.loc6_24 (%pattern_type.e2e) = out_param_pattern %return.patt, call_param1 [concrete]
 // CHECK:STDOUT:     } {
 // CHECK:STDOUT:       %T.ref: type = name_ref T, @A.%T.loc5_13.2 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:       %.loc6_31: @A.F.%A.type (%A.type.75a) = specific_constant @A.%Self.1, @A(constants.%T.8b3) [symbolic = %Self (constants.%Self.753)]
-// CHECK:STDOUT:       %Self.ref: @A.F.%A.type (%A.type.75a) = name_ref Self, %.loc6_31 [symbolic = %Self (constants.%Self.753)]
+// CHECK:STDOUT:       %.loc6_31: @A.F.%A.type (%A.type.806) = specific_constant @A.%Self.1, @A(constants.%T.8b3) [symbolic = %Self (constants.%Self.b74)]
+// CHECK:STDOUT:       %Self.ref: @A.F.%A.type (%A.type.806) = name_ref Self, %.loc6_31 [symbolic = %Self (constants.%Self.b74)]
 // CHECK:STDOUT:       %U.ref.loc6_37: type = name_ref U, %U.loc6_8.2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
-// CHECK:STDOUT:       %.loc6_38.1: @A.F.%tuple.type.loc6_38.1 (%tuple.type.e59) = tuple_literal (%T.ref, %Self.ref, %U.ref.loc6_37)
-// CHECK:STDOUT:       %Self.as_type.loc6_38.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.81d)]
-// CHECK:STDOUT:       %.loc6_38.2: type = converted %Self.ref, %Self.as_type.loc6_38.2 [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.81d)]
-// CHECK:STDOUT:       %.loc6_38.3: type = converted %.loc6_38.1, constants.%tuple.type.bd2 [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.bd2)]
+// CHECK:STDOUT:       %.loc6_38.1: @A.F.%tuple.type.loc6_38.1 (%tuple.type.4c5) = tuple_literal (%T.ref, %Self.ref, %U.ref.loc6_37)
+// CHECK:STDOUT:       %Self.as_type.loc6_38.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.327)]
+// CHECK:STDOUT:       %.loc6_38.2: type = converted %Self.ref, %Self.as_type.loc6_38.2 [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.327)]
+// CHECK:STDOUT:       %.loc6_38.3: type = converted %.loc6_38.1, constants.%tuple.type.6ec [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.6ec)]
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %U.loc6_8.2: type = bind_symbolic_name U, 2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
 // CHECK:STDOUT:       %u.param: @A.F.%U.loc6_8.1 (%U.2cb) = value_param call_param0
 // CHECK:STDOUT:       %U.ref.loc6_21: type = name_ref U, %U.loc6_8.2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
 // CHECK:STDOUT:       %u: @A.F.%U.loc6_8.1 (%U.2cb) = bind_name u, %u.param
-// CHECK:STDOUT:       %return.param: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.bd2) = out_param call_param1
-// CHECK:STDOUT:       %return: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.bd2) = return_slot %return.param
+// CHECK:STDOUT:       %return.param: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.6ec) = out_param call_param1
+// CHECK:STDOUT:       %return: ref @A.F.%tuple.type.loc6_38.2 (%tuple.type.6ec) = return_slot %return.param
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %assoc0.loc6_39.1: @A.%A.assoc_type (%A.assoc_type.ed3) = assoc_entity element0, %A.F.decl [symbolic = %assoc0.loc6_39.2 (constants.%assoc0.fcb)]
 // CHECK:STDOUT:
@@ -979,16 +979,16 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %V2.loc14_25.1: type = bind_symbolic_name V2, 1 [symbolic = %V2.loc14_25.1 (constants.%V2)]
 // CHECK:STDOUT:   %W.loc14_36.1: type = bind_symbolic_name W, 2 [symbolic = %W.loc14_36.1 (constants.%W)]
 // CHECK:STDOUT:   %tuple.type: type = tuple_type (%V1.loc14_14.1, %V2.loc14_25.1) [symbolic = %tuple.type (constants.%tuple.type.30b)]
-// CHECK:STDOUT:   %A.type.loc14_61.1: type = facet_type <@A, @A(%W.loc14_36.1)> [symbolic = %A.type.loc14_61.1 (constants.%A.type.f21)]
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %A.type.loc14_61.1 [symbolic = %require_complete (constants.%require_complete.796)]
-// CHECK:STDOUT:   %A.impl_witness: <witness> = impl_witness file.%A.impl_witness_table, @tuple.type.as.A.impl(%V1.loc14_14.1, %V2.loc14_25.1, %W.loc14_36.1) [symbolic = %A.impl_witness (constants.%A.impl_witness.f15)]
+// CHECK:STDOUT:   %A.type.loc14_61.1: type = facet_type <@A, @A(%W.loc14_36.1)> [symbolic = %A.type.loc14_61.1 (constants.%A.type.ffa)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %A.type.loc14_61.1 [symbolic = %require_complete (constants.%require_complete.116)]
+// CHECK:STDOUT:   %A.impl_witness: <witness> = impl_witness file.%A.impl_witness_table, @tuple.type.as.A.impl(%V1.loc14_14.1, %V2.loc14_25.1, %W.loc14_36.1) [symbolic = %A.impl_witness (constants.%A.impl_witness.3ab)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%V1.loc14_14.1, %V2.loc14_25.1, %W.loc14_36.1) [symbolic = %tuple.type.as.A.impl.F.type (constants.%tuple.type.as.A.impl.F.type.b3e)]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F: @tuple.type.as.A.impl.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.b3e) = struct_value () [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.d79)]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%V1.loc14_14.1, %V2.loc14_25.1, %W.loc14_36.1) [symbolic = %tuple.type.as.A.impl.F.type (constants.%tuple.type.as.A.impl.F.type.dac)]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F: @tuple.type.as.A.impl.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.dac) = struct_value () [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.9d5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   impl: %.loc14_53.2 as %A.type.loc14_61.2 {
-// CHECK:STDOUT:     %tuple.type.as.A.impl.F.decl: @tuple.type.as.A.impl.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.b3e) = fn_decl @tuple.type.as.A.impl.F [symbolic = @tuple.type.as.A.impl.%tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.d79)] {
+// CHECK:STDOUT:     %tuple.type.as.A.impl.F.decl: @tuple.type.as.A.impl.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.dac) = fn_decl @tuple.type.as.A.impl.F [symbolic = @tuple.type.as.A.impl.%tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.9d5)] {
 // CHECK:STDOUT:       %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 3 [concrete]
 // CHECK:STDOUT:       %u.patt: @tuple.type.as.A.impl.F.%pattern_type.loc17_18 (%pattern_type.549) = binding_pattern u [concrete]
 // CHECK:STDOUT:       %u.param_patt: @tuple.type.as.A.impl.F.%pattern_type.loc17_18 (%pattern_type.549) = value_param_pattern %u.patt, call_param0 [concrete]
@@ -1025,7 +1025,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%X [concrete = constants.%X]
 // CHECK:STDOUT:   impl_decl @X.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@X.as.Destroy.impl.%X.as.Destroy.impl.Op.decl), @X.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.807]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.286]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1037,7 +1037,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Y1 [concrete = constants.%Y1]
 // CHECK:STDOUT:   impl_decl @Y1.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Y1.as.Destroy.impl.%Y1.as.Destroy.impl.Op.decl), @Y1.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.614]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6b0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1049,7 +1049,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Y2 [concrete = constants.%Y2]
 // CHECK:STDOUT:   impl_decl @Y2.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Y2.as.Destroy.impl.%Y2.as.Destroy.impl.Op.decl), @Y2.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.7b0]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.dbf]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1061,7 +1061,7 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Z [concrete = constants.%Z]
 // CHECK:STDOUT:   impl_decl @Z.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Z.as.Destroy.impl.%Z.as.Destroy.impl.Op.decl), @Z.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.2a0]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.417]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -1069,18 +1069,18 @@ fn CallIndirect() {
 // CHECK:STDOUT:   .Self = constants.%Z
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @A.F(@A.%T.loc5_13.2: type, @A.%Self.1: @A.%A.type (%A.type.75a), %U.loc6_8.2: type) {
+// CHECK:STDOUT: generic fn @A.F(@A.%T.loc5_13.2: type, @A.%Self.1: @A.%A.type (%A.type.806), %U.loc6_8.2: type) {
 // CHECK:STDOUT:   %U.loc6_8.1: type = bind_symbolic_name U, 2 [symbolic = %U.loc6_8.1 (constants.%U.2cb)]
 // CHECK:STDOUT:   %pattern_type.loc6_18: type = pattern_type %U.loc6_8.1 [symbolic = %pattern_type.loc6_18 (constants.%pattern_type.20f)]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T.8b3)]
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T)> [symbolic = %A.type (constants.%A.type.75a)]
-// CHECK:STDOUT:   %Self: @A.F.%A.type (%A.type.75a) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.753)]
-// CHECK:STDOUT:   %tuple.type.loc6_38.1: type = tuple_type (type, %A.type, type) [symbolic = %tuple.type.loc6_38.1 (constants.%tuple.type.e59)]
-// CHECK:STDOUT:   %Self.as_type.loc6_38.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.81d)]
-// CHECK:STDOUT:   %tuple.type.loc6_38.2: type = tuple_type (%T, %Self.as_type.loc6_38.1, %U.loc6_8.1) [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.bd2)]
-// CHECK:STDOUT:   %pattern_type.loc6_24: type = pattern_type %tuple.type.loc6_38.2 [symbolic = %pattern_type.loc6_24 (constants.%pattern_type.44c)]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(%T)> [symbolic = %A.type (constants.%A.type.806)]
+// CHECK:STDOUT:   %Self: @A.F.%A.type (%A.type.806) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.b74)]
+// CHECK:STDOUT:   %tuple.type.loc6_38.1: type = tuple_type (type, %A.type, type) [symbolic = %tuple.type.loc6_38.1 (constants.%tuple.type.4c5)]
+// CHECK:STDOUT:   %Self.as_type.loc6_38.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc6_38.1 (constants.%Self.as_type.327)]
+// CHECK:STDOUT:   %tuple.type.loc6_38.2: type = tuple_type (%T, %Self.as_type.loc6_38.1, %U.loc6_8.1) [symbolic = %tuple.type.loc6_38.2 (constants.%tuple.type.6ec)]
+// CHECK:STDOUT:   %pattern_type.loc6_24: type = pattern_type %tuple.type.loc6_38.2 [symbolic = %pattern_type.loc6_24 (constants.%pattern_type.e2e)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%u.param: @A.F.%U.loc6_8.1 (%U.2cb)) -> @A.F.%tuple.type.loc6_38.2 (%tuple.type.bd2);
+// CHECK:STDOUT:   fn(%u.param: @A.F.%U.loc6_8.1 (%U.2cb)) -> @A.F.%tuple.type.loc6_38.2 (%tuple.type.6ec);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @X.as.Destroy.impl.Op(%self.param: %ptr.d17) = "no_op";
@@ -1104,17 +1104,17 @@ fn CallIndirect() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc17_24: <witness> = require_complete_type %tuple.type.loc17_42.2 [symbolic = %require_complete.loc17_24 (constants.%require_complete.d4d)]
 // CHECK:STDOUT:   %require_complete.loc17_19: <witness> = require_complete_type %U.loc17_8.1 [symbolic = %require_complete.loc17_19 (constants.%require_complete.ed4)]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%V1, %V2, %W) [symbolic = %tuple.type.as.A.impl.F.type (constants.%tuple.type.as.A.impl.F.type.b3e)]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F: @tuple.type.as.A.impl.F.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.b3e) = struct_value () [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.d79)]
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.loc18_12.2: <specific function> = specific_function %tuple.type.as.A.impl.F, @tuple.type.as.A.impl.F(%V1, %V2, %W, %U.loc17_8.1) [symbolic = %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 (constants.%tuple.type.as.A.impl.F.specific_fn.7d9)]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type: type = fn_type @tuple.type.as.A.impl.F, @tuple.type.as.A.impl(%V1, %V2, %W) [symbolic = %tuple.type.as.A.impl.F.type (constants.%tuple.type.as.A.impl.F.type.dac)]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F: @tuple.type.as.A.impl.F.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.dac) = struct_value () [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.9d5)]
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.loc18_12.2: <specific function> = specific_function %tuple.type.as.A.impl.F, @tuple.type.as.A.impl.F(%V1, %V2, %W, %U.loc17_8.1) [symbolic = %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 (constants.%tuple.type.as.A.impl.F.specific_fn.cc7)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%u.param: @tuple.type.as.A.impl.F.%U.loc17_8.1 (%U.753)) -> %return.param: @tuple.type.as.A.impl.F.%tuple.type.loc17_42.2 (%tuple.type.8ae) {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %.loc18: @tuple.type.as.A.impl.F.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.b3e) = specific_constant @tuple.type.as.A.impl.%tuple.type.as.A.impl.F.decl, @tuple.type.as.A.impl(constants.%V1, constants.%V2, constants.%W) [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.d79)]
-// CHECK:STDOUT:     %F.ref: @tuple.type.as.A.impl.F.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.b3e) = name_ref F, %.loc18 [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.d79)]
+// CHECK:STDOUT:     %.loc18: @tuple.type.as.A.impl.F.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.dac) = specific_constant @tuple.type.as.A.impl.%tuple.type.as.A.impl.F.decl, @tuple.type.as.A.impl(constants.%V1, constants.%V2, constants.%W) [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.9d5)]
+// CHECK:STDOUT:     %F.ref: @tuple.type.as.A.impl.F.%tuple.type.as.A.impl.F.type (%tuple.type.as.A.impl.F.type.dac) = name_ref F, %.loc18 [symbolic = %tuple.type.as.A.impl.F (constants.%tuple.type.as.A.impl.F.9d5)]
 // CHECK:STDOUT:     %U.ref.loc18: type = name_ref U, %U.loc17_8.2 [symbolic = %U.loc17_8.1 (constants.%U.753)]
 // CHECK:STDOUT:     %u.ref: @tuple.type.as.A.impl.F.%U.loc17_8.1 (%U.753) = name_ref u, %u
-// CHECK:STDOUT:     %tuple.type.as.A.impl.F.specific_fn.loc18_12.1: <specific function> = specific_function %F.ref, @tuple.type.as.A.impl.F(constants.%V1, constants.%V2, constants.%W, constants.%U.753) [symbolic = %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 (constants.%tuple.type.as.A.impl.F.specific_fn.7d9)]
+// CHECK:STDOUT:     %tuple.type.as.A.impl.F.specific_fn.loc18_12.1: <specific function> = specific_function %F.ref, @tuple.type.as.A.impl.F(constants.%V1, constants.%V2, constants.%W, constants.%U.753) [symbolic = %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 (constants.%tuple.type.as.A.impl.F.specific_fn.cc7)]
 // CHECK:STDOUT:     %.loc17_24: ref @tuple.type.as.A.impl.F.%tuple.type.loc17_42.2 (%tuple.type.8ae) = splice_block %return {}
 // CHECK:STDOUT:     %tuple.type.as.A.impl.F.call: init @tuple.type.as.A.impl.F.%tuple.type.loc17_42.2 (%tuple.type.8ae) = call %tuple.type.as.A.impl.F.specific_fn.loc18_12.1(%u.ref) to %.loc17_24
 // CHECK:STDOUT:     return %tuple.type.as.A.impl.F.call to %return
@@ -1129,17 +1129,17 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %.loc24_14: type = converted %.loc24_12, constants.%tuple.type.a46 [concrete = constants.%tuple.type.a46]
 // CHECK:STDOUT:   %A.ref: %A.type.495 = name_ref A, file.%A.decl [concrete = constants.%A.generic]
 // CHECK:STDOUT:   %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.91f]
-// CHECK:STDOUT:   %A.facet: %A.type.91f = facet_value constants.%tuple.type.a46, (constants.%A.impl_witness.8ac) [concrete = constants.%A.facet.414]
-// CHECK:STDOUT:   %.loc24_23: %A.type.91f = converted %.loc24_14, %A.facet [concrete = constants.%A.facet.414]
+// CHECK:STDOUT:   %A.type: type = facet_type <@A, @A(constants.%X)> [concrete = constants.%A.type.515]
+// CHECK:STDOUT:   %A.facet: %A.type.515 = facet_value constants.%tuple.type.a46, (constants.%A.impl_witness.0ca) [concrete = constants.%A.facet.2e2]
+// CHECK:STDOUT:   %.loc24_23: %A.type.515 = converted %.loc24_14, %A.facet [concrete = constants.%A.facet.2e2]
 // CHECK:STDOUT:   %.loc24_31.1: %A.assoc_type.296 = specific_constant @A.%assoc0.loc6_39.1, @A(constants.%X) [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:   %F.ref: %A.assoc_type.296 = name_ref F, %.loc24_31.1 [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %.loc24_23 [concrete = constants.%tuple.type.a46]
 // CHECK:STDOUT:   %.loc24_31.2: type = converted %.loc24_23, %as_type [concrete = constants.%tuple.type.a46]
-// CHECK:STDOUT:   %impl.elem0: %.406 = impl_witness_access constants.%A.impl_witness.8ac, element0 [concrete = constants.%tuple.type.as.A.impl.F.93b]
+// CHECK:STDOUT:   %impl.elem0: %.9db = impl_witness_access constants.%A.impl_witness.0ca, element0 [concrete = constants.%tuple.type.as.A.impl.F.d69]
 // CHECK:STDOUT:   %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z]
 // CHECK:STDOUT:   %.loc24_38.1: %empty_struct_type = struct_literal ()
-// CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @tuple.type.as.A.impl.F(constants.%Y1, constants.%Y2, constants.%X, constants.%Z) [concrete = constants.%tuple.type.as.A.impl.F.specific_fn.79b]
+// CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @tuple.type.as.A.impl.F(constants.%Y1, constants.%Y2, constants.%X, constants.%Z) [concrete = constants.%tuple.type.as.A.impl.F.specific_fn.6bf]
 // CHECK:STDOUT:   %.loc24_39.1: ref %tuple.type.415 = temporary_storage
 // CHECK:STDOUT:   %.loc24_38.2: ref %Z = temporary_storage
 // CHECK:STDOUT:   %.loc24_38.3: init %Z = class_init (), %.loc24_38.2 [concrete = constants.%Z.val]
@@ -1148,8 +1148,8 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %.loc24_38.6: %Z = bind_value %.loc24_38.5
 // CHECK:STDOUT:   %tuple.type.as.A.impl.F.call: init %tuple.type.415 = call %specific_fn(%.loc24_38.6) to %.loc24_39.1
 // CHECK:STDOUT:   %.loc24_39.2: ref %tuple.type.415 = temporary %.loc24_39.1, %tuple.type.as.A.impl.F.call
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_39.2, constants.%T.as.Destroy.impl.Op.66e
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.66e, @T.as.Destroy.impl.Op(constants.%tuple.type.415) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_39.2, constants.%T.as.Destroy.impl.Op.f0c
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f0c, @T.as.Destroy.impl.Op(constants.%tuple.type.415) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc24_39.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc24_39: %ptr.ad9 = addr_of %.loc24_39.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc24_39)
@@ -1159,50 +1159,50 @@ fn CallIndirect() {
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @CallGeneric(%T.loc27_16.2: %A.type.91f) {
-// CHECK:STDOUT:   %T.loc27_16.1: %A.type.91f = bind_symbolic_name T, 0 [symbolic = %T.loc27_16.1 (constants.%T.9c2)]
+// CHECK:STDOUT: generic fn @CallGeneric(%T.loc27_16.2: %A.type.515) {
+// CHECK:STDOUT:   %T.loc27_16.1: %A.type.515 = bind_symbolic_name T, 0 [symbolic = %T.loc27_16.1 (constants.%T.3b6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T.as_type.loc28_4.2: type = facet_access_type %T.loc27_16.1 [symbolic = %T.as_type.loc28_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %T.loc27_16.1, @A, @A(constants.%X) [symbolic = %A.lookup_impl_witness (constants.%A.lookup_impl_witness)]
-// CHECK:STDOUT:   %A.facet: %A.type.91f = facet_value %T.as_type.loc28_4.2, (%A.lookup_impl_witness) [symbolic = %A.facet (constants.%A.facet.11f)]
-// CHECK:STDOUT:   %.loc28_4.3: type = fn_type_with_self_type constants.%A.F.type.13d, %A.facet [symbolic = %.loc28_4.3 (constants.%.ffa)]
-// CHECK:STDOUT:   %impl.elem0.loc28_4.2: @CallGeneric.%.loc28_4.3 (%.ffa) = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_4.2 (constants.%impl.elem0.0e5)]
-// CHECK:STDOUT:   %specific_impl_fn.loc28_4.2: <specific function> = specific_impl_function %impl.elem0.loc28_4.2, @A.F(constants.%X, %A.facet, constants.%Z) [symbolic = %specific_impl_fn.loc28_4.2 (constants.%specific_impl_fn.e7e)]
-// CHECK:STDOUT:   %tuple.type: type = tuple_type (constants.%X, %T.as_type.loc28_4.2, constants.%Z) [symbolic = %tuple.type (constants.%tuple.type.e28)]
-// CHECK:STDOUT:   %require_complete.loc28_12.1: <witness> = require_complete_type %tuple.type [symbolic = %require_complete.loc28_12.1 (constants.%require_complete.500)]
+// CHECK:STDOUT:   %A.facet: %A.type.515 = facet_value %T.as_type.loc28_4.2, (%A.lookup_impl_witness) [symbolic = %A.facet (constants.%A.facet.97b)]
+// CHECK:STDOUT:   %.loc28_4.3: type = fn_type_with_self_type constants.%A.F.type.13d, %A.facet [symbolic = %.loc28_4.3 (constants.%.7c8)]
+// CHECK:STDOUT:   %impl.elem0.loc28_4.2: @CallGeneric.%.loc28_4.3 (%.7c8) = impl_witness_access %A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_4.2 (constants.%impl.elem0.eda)]
+// CHECK:STDOUT:   %specific_impl_fn.loc28_4.2: <specific function> = specific_impl_function %impl.elem0.loc28_4.2, @A.F(constants.%X, %A.facet, constants.%Z) [symbolic = %specific_impl_fn.loc28_4.2 (constants.%specific_impl_fn.9ce)]
+// CHECK:STDOUT:   %tuple.type: type = tuple_type (constants.%X, %T.as_type.loc28_4.2, constants.%Z) [symbolic = %tuple.type (constants.%tuple.type.379)]
+// CHECK:STDOUT:   %require_complete.loc28_12.1: <witness> = require_complete_type %tuple.type [symbolic = %require_complete.loc28_12.1 (constants.%require_complete.d0c)]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %tuple.type, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %tuple.type, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.1a6)]
-// CHECK:STDOUT:   %.loc28_12.5: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc28_12.5 (constants.%.efa)]
-// CHECK:STDOUT:   %impl.elem0.loc28_12.2: @CallGeneric.%.loc28_12.5 (%.efa) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_12.2 (constants.%impl.elem0.305)]
-// CHECK:STDOUT:   %specific_impl_fn.loc28_12.2: <specific function> = specific_impl_function %impl.elem0.loc28_12.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc28_12.2 (constants.%specific_impl_fn.52a)]
-// CHECK:STDOUT:   %ptr: type = ptr_type %tuple.type [symbolic = %ptr (constants.%ptr.103)]
-// CHECK:STDOUT:   %require_complete.loc28_12.2: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc28_12.2 (constants.%require_complete.8d3)]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %tuple.type, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.a89)]
+// CHECK:STDOUT:   %.loc28_12.5: type = fn_type_with_self_type constants.%Destroy.Op.type, %Destroy.facet [symbolic = %.loc28_12.5 (constants.%.a0b)]
+// CHECK:STDOUT:   %impl.elem0.loc28_12.2: @CallGeneric.%.loc28_12.5 (%.a0b) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_12.2 (constants.%impl.elem0.80a)]
+// CHECK:STDOUT:   %specific_impl_fn.loc28_12.2: <specific function> = specific_impl_function %impl.elem0.loc28_12.2, @Destroy.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc28_12.2 (constants.%specific_impl_fn.515)]
+// CHECK:STDOUT:   %ptr: type = ptr_type %tuple.type [symbolic = %ptr (constants.%ptr.e41)]
+// CHECK:STDOUT:   %require_complete.loc28_12.2: <witness> = require_complete_type %ptr [symbolic = %require_complete.loc28_12.2 (constants.%require_complete.1f9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %T.ref: %A.type.91f = name_ref T, %T.loc27_16.2 [symbolic = %T.loc27_16.1 (constants.%T.9c2)]
+// CHECK:STDOUT:     %T.ref: %A.type.515 = name_ref T, %T.loc27_16.2 [symbolic = %T.loc27_16.1 (constants.%T.3b6)]
 // CHECK:STDOUT:     %.loc28_4.1: %A.assoc_type.296 = specific_constant @A.%assoc0.loc6_39.1, @A(constants.%X) [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:     %F.ref: %A.assoc_type.296 = name_ref F, %.loc28_4.1 [concrete = constants.%assoc0.5f6]
 // CHECK:STDOUT:     %T.as_type.loc28_4.1: type = facet_access_type %T.ref [symbolic = %T.as_type.loc28_4.2 (constants.%T.as_type)]
 // CHECK:STDOUT:     %.loc28_4.2: type = converted %T.ref, %T.as_type.loc28_4.1 [symbolic = %T.as_type.loc28_4.2 (constants.%T.as_type)]
-// CHECK:STDOUT:     %impl.elem0.loc28_4.1: @CallGeneric.%.loc28_4.3 (%.ffa) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_4.2 (constants.%impl.elem0.0e5)]
+// CHECK:STDOUT:     %impl.elem0.loc28_4.1: @CallGeneric.%.loc28_4.3 (%.7c8) = impl_witness_access constants.%A.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_4.2 (constants.%impl.elem0.eda)]
 // CHECK:STDOUT:     %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z]
 // CHECK:STDOUT:     %.loc28_11.1: %empty_struct_type = struct_literal ()
-// CHECK:STDOUT:     %specific_impl_fn.loc28_4.1: <specific function> = specific_impl_function %impl.elem0.loc28_4.1, @A.F(constants.%X, constants.%A.facet.11f, constants.%Z) [symbolic = %specific_impl_fn.loc28_4.2 (constants.%specific_impl_fn.e7e)]
-// CHECK:STDOUT:     %.loc28_12.1: ref @CallGeneric.%tuple.type (%tuple.type.e28) = temporary_storage
+// CHECK:STDOUT:     %specific_impl_fn.loc28_4.1: <specific function> = specific_impl_function %impl.elem0.loc28_4.1, @A.F(constants.%X, constants.%A.facet.97b, constants.%Z) [symbolic = %specific_impl_fn.loc28_4.2 (constants.%specific_impl_fn.9ce)]
+// CHECK:STDOUT:     %.loc28_12.1: ref @CallGeneric.%tuple.type (%tuple.type.379) = temporary_storage
 // CHECK:STDOUT:     %.loc28_11.2: ref %Z = temporary_storage
 // CHECK:STDOUT:     %.loc28_11.3: init %Z = class_init (), %.loc28_11.2 [concrete = constants.%Z.val]
 // CHECK:STDOUT:     %.loc28_11.4: ref %Z = temporary %.loc28_11.2, %.loc28_11.3
 // CHECK:STDOUT:     %.loc28_11.5: ref %Z = converted %.loc28_11.1, %.loc28_11.4
 // CHECK:STDOUT:     %.loc28_11.6: %Z = bind_value %.loc28_11.5
-// CHECK:STDOUT:     %.loc28_12.2: init @CallGeneric.%tuple.type (%tuple.type.e28) = call %specific_impl_fn.loc28_4.1(%.loc28_11.6) to %.loc28_12.1
-// CHECK:STDOUT:     %.loc28_12.3: ref @CallGeneric.%tuple.type (%tuple.type.e28) = temporary %.loc28_12.1, %.loc28_12.2
-// CHECK:STDOUT:     %impl.elem0.loc28_12.1: @CallGeneric.%.loc28_12.5 (%.efa) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_12.2 (constants.%impl.elem0.305)]
+// CHECK:STDOUT:     %.loc28_12.2: init @CallGeneric.%tuple.type (%tuple.type.379) = call %specific_impl_fn.loc28_4.1(%.loc28_11.6) to %.loc28_12.1
+// CHECK:STDOUT:     %.loc28_12.3: ref @CallGeneric.%tuple.type (%tuple.type.379) = temporary %.loc28_12.1, %.loc28_12.2
+// CHECK:STDOUT:     %impl.elem0.loc28_12.1: @CallGeneric.%.loc28_12.5 (%.a0b) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc28_12.2 (constants.%impl.elem0.80a)]
 // CHECK:STDOUT:     %bound_method.loc28_12.1: <bound method> = bound_method %.loc28_12.3, %impl.elem0.loc28_12.1
-// CHECK:STDOUT:     %specific_impl_fn.loc28_12.1: <specific function> = specific_impl_function %impl.elem0.loc28_12.1, @Destroy.Op(constants.%Destroy.facet.1a6) [symbolic = %specific_impl_fn.loc28_12.2 (constants.%specific_impl_fn.52a)]
+// CHECK:STDOUT:     %specific_impl_fn.loc28_12.1: <specific function> = specific_impl_function %impl.elem0.loc28_12.1, @Destroy.Op(constants.%Destroy.facet.a89) [symbolic = %specific_impl_fn.loc28_12.2 (constants.%specific_impl_fn.515)]
 // CHECK:STDOUT:     %bound_method.loc28_12.2: <bound method> = bound_method %.loc28_12.3, %specific_impl_fn.loc28_12.1
-// CHECK:STDOUT:     %addr.loc28_12: @CallGeneric.%ptr (%ptr.103) = addr_of %.loc28_12.3
+// CHECK:STDOUT:     %addr.loc28_12: @CallGeneric.%ptr (%ptr.e41) = addr_of %.loc28_12.3
 // CHECK:STDOUT:     %.loc28_12.4: init %empty_tuple.type = call %bound_method.loc28_12.2(%addr.loc28_12)
 // CHECK:STDOUT:     %Z.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc28_11.4, constants.%Z.as.Destroy.impl.Op
 // CHECK:STDOUT:     %addr.loc28_11: %ptr.fb6 = addr_of %.loc28_11.4
@@ -1218,9 +1218,9 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %Y2.ref: type = name_ref Y2, file.%Y2.decl [concrete = constants.%Y2]
 // CHECK:STDOUT:   %.loc33_22: %tuple.type.24b = tuple_literal (%Y1.ref, %Y2.ref)
 // CHECK:STDOUT:   %.loc33_24: type = converted %.loc33_22, constants.%tuple.type.a46 [concrete = constants.%tuple.type.a46]
-// CHECK:STDOUT:   %A.facet: %A.type.91f = facet_value constants.%tuple.type.a46, (constants.%A.impl_witness.8ac) [concrete = constants.%A.facet.414]
-// CHECK:STDOUT:   %.loc33_31: %A.type.91f = converted %.loc33_24, %A.facet [concrete = constants.%A.facet.414]
-// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric.ref, @CallGeneric(constants.%A.facet.414) [concrete = constants.%CallGeneric.specific_fn]
+// CHECK:STDOUT:   %A.facet: %A.type.515 = facet_value constants.%tuple.type.a46, (constants.%A.impl_witness.0ca) [concrete = constants.%A.facet.2e2]
+// CHECK:STDOUT:   %.loc33_31: %A.type.515 = converted %.loc33_24, %A.facet [concrete = constants.%A.facet.2e2]
+// CHECK:STDOUT:   %CallGeneric.specific_fn: <specific function> = specific_function %CallGeneric.ref, @CallGeneric(constants.%A.facet.2e2) [concrete = constants.%CallGeneric.specific_fn]
 // CHECK:STDOUT:   %CallGeneric.call: init %empty_tuple.type = call %CallGeneric.specific_fn()
 // CHECK:STDOUT:   return
 // CHECK:STDOUT: }
@@ -1229,24 +1229,24 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%T.8b3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%T.8b3, constants.%Self.753, constants.%U.2cb) {
+// CHECK:STDOUT: specific @A.F(constants.%T.8b3, constants.%Self.b74, constants.%U.2cb) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%U.2cb
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.20f
 // CHECK:STDOUT:   %T => constants.%T.8b3
-// CHECK:STDOUT:   %A.type => constants.%A.type.75a
-// CHECK:STDOUT:   %Self => constants.%Self.753
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.e59
-// CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%Self.as_type.81d
-// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.bd2
-// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.44c
+// CHECK:STDOUT:   %A.type => constants.%A.type.806
+// CHECK:STDOUT:   %Self => constants.%Self.b74
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.4c5
+// CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%Self.as_type.327
+// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.6ec
+// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.e2e
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @A(constants.%W) {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%W
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.type => constants.%A.type.f21
-// CHECK:STDOUT:   %Self.2 => constants.%Self.4fe
+// CHECK:STDOUT:   %A.type => constants.%A.type.ffa
+// CHECK:STDOUT:   %Self.2 => constants.%Self.0b4
 // CHECK:STDOUT:   %A.F.type => constants.%A.F.type.904
 // CHECK:STDOUT:   %A.F => constants.%A.F.1ee
 // CHECK:STDOUT:   %A.assoc_type => constants.%A.assoc_type.b05
@@ -1258,13 +1258,13 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %V2.loc14_25.1 => constants.%V2
 // CHECK:STDOUT:   %W.loc14_36.1 => constants.%W
 // CHECK:STDOUT:   %tuple.type => constants.%tuple.type.30b
-// CHECK:STDOUT:   %A.type.loc14_61.1 => constants.%A.type.f21
-// CHECK:STDOUT:   %require_complete => constants.%require_complete.796
-// CHECK:STDOUT:   %A.impl_witness => constants.%A.impl_witness.f15
+// CHECK:STDOUT:   %A.type.loc14_61.1 => constants.%A.type.ffa
+// CHECK:STDOUT:   %require_complete => constants.%require_complete.116
+// CHECK:STDOUT:   %A.impl_witness => constants.%A.impl_witness.3ab
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.b3e
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.d79
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.dac
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.9d5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @tuple.type.as.A.impl.F(constants.%V1, constants.%V2, constants.%W, constants.%U.753) {
@@ -1280,18 +1280,18 @@ fn CallIndirect() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc17_24 => constants.%require_complete.d4d
 // CHECK:STDOUT:   %require_complete.loc17_19 => constants.%require_complete.ed4
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.b3e
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.d79
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 => constants.%tuple.type.as.A.impl.F.specific_fn.7d9
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.dac
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.9d5
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 => constants.%tuple.type.as.A.impl.F.specific_fn.cc7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%W, constants.%A.facet.461, constants.%U.753) {
+// CHECK:STDOUT: specific @A.F(constants.%W, constants.%A.facet.b6a, constants.%U.753) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%U.753
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.549
 // CHECK:STDOUT:   %T => constants.%W
-// CHECK:STDOUT:   %A.type => constants.%A.type.f21
-// CHECK:STDOUT:   %Self => constants.%A.facet.461
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.136
+// CHECK:STDOUT:   %A.type => constants.%A.type.ffa
+// CHECK:STDOUT:   %Self => constants.%A.facet.b6a
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.6bd
 // CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%tuple.type.30b
 // CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.8ae
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.d4a
@@ -1301,8 +1301,8 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %T.loc5_13.1 => constants.%X
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self.2 => constants.%Self.1bb
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self.2 => constants.%Self.522
 // CHECK:STDOUT:   %A.F.type => constants.%A.F.type.13d
 // CHECK:STDOUT:   %A.F => constants.%A.F.d83
 // CHECK:STDOUT:   %A.assoc_type => constants.%A.assoc_type.296
@@ -1314,13 +1314,13 @@ fn CallIndirect() {
 // CHECK:STDOUT:   %V2.loc14_25.1 => constants.%Y2
 // CHECK:STDOUT:   %W.loc14_36.1 => constants.%X
 // CHECK:STDOUT:   %tuple.type => constants.%tuple.type.a46
-// CHECK:STDOUT:   %A.type.loc14_61.1 => constants.%A.type.91f
-// CHECK:STDOUT:   %require_complete => constants.%complete_type.d76
-// CHECK:STDOUT:   %A.impl_witness => constants.%A.impl_witness.8ac
+// CHECK:STDOUT:   %A.type.loc14_61.1 => constants.%A.type.515
+// CHECK:STDOUT:   %require_complete => constants.%complete_type.1a4
+// CHECK:STDOUT:   %A.impl_witness => constants.%A.impl_witness.0ca
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.bf7
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.93b
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.490
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.d69
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @tuple.type.as.A.impl.F(constants.%Y1, constants.%Y2, constants.%X, constants.%Z) {
@@ -1336,55 +1336,55 @@ fn CallIndirect() {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %require_complete.loc17_24 => constants.%complete_type.aa8
 // CHECK:STDOUT:   %require_complete.loc17_19 => constants.%complete_type.357
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.bf7
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.93b
-// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 => constants.%tuple.type.as.A.impl.F.specific_fn.79b
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.type => constants.%tuple.type.as.A.impl.F.type.490
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F => constants.%tuple.type.as.A.impl.F.d69
+// CHECK:STDOUT:   %tuple.type.as.A.impl.F.specific_fn.loc18_12.2 => constants.%tuple.type.as.A.impl.F.specific_fn.6bf
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CallGeneric(constants.%T.9c2) {
-// CHECK:STDOUT:   %T.loc27_16.1 => constants.%T.9c2
+// CHECK:STDOUT: specific @CallGeneric(constants.%T.3b6) {
+// CHECK:STDOUT:   %T.loc27_16.1 => constants.%T.3b6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.11f, constants.%Z) {
+// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.97b, constants.%Z) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%Z
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.8f9
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self => constants.%A.facet.11f
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.a0c
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self => constants.%A.facet.97b
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.281
 // CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%T.as_type
-// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.e28
-// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.f25
+// CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.379
+// CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.fcb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @CallGeneric(constants.%A.facet.414) {
-// CHECK:STDOUT:   %T.loc27_16.1 => constants.%A.facet.414
+// CHECK:STDOUT: specific @CallGeneric(constants.%A.facet.2e2) {
+// CHECK:STDOUT:   %T.loc27_16.1 => constants.%A.facet.2e2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T.as_type.loc28_4.2 => constants.%tuple.type.a46
-// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.impl_witness.8ac
-// CHECK:STDOUT:   %A.facet => constants.%A.facet.414
-// CHECK:STDOUT:   %.loc28_4.3 => constants.%.406
-// CHECK:STDOUT:   %impl.elem0.loc28_4.2 => constants.%tuple.type.as.A.impl.F.93b
-// CHECK:STDOUT:   %specific_impl_fn.loc28_4.2 => constants.%tuple.type.as.A.impl.F.specific_fn.79b
+// CHECK:STDOUT:   %A.lookup_impl_witness => constants.%A.impl_witness.0ca
+// CHECK:STDOUT:   %A.facet => constants.%A.facet.2e2
+// CHECK:STDOUT:   %.loc28_4.3 => constants.%.9db
+// CHECK:STDOUT:   %impl.elem0.loc28_4.2 => constants.%tuple.type.as.A.impl.F.d69
+// CHECK:STDOUT:   %specific_impl_fn.loc28_4.2 => constants.%tuple.type.as.A.impl.F.specific_fn.6bf
 // CHECK:STDOUT:   %tuple.type => constants.%tuple.type.415
 // CHECK:STDOUT:   %require_complete.loc28_12.1 => constants.%complete_type.aa8
-// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.c80
-// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.2b1
-// CHECK:STDOUT:   %.loc28_12.5 => constants.%.1b7
-// CHECK:STDOUT:   %impl.elem0.loc28_12.2 => constants.%T.as.Destroy.impl.Op.66e
+// CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%Destroy.impl_witness.c7e
+// CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.c14
+// CHECK:STDOUT:   %.loc28_12.5 => constants.%.397
+// CHECK:STDOUT:   %impl.elem0.loc28_12.2 => constants.%T.as.Destroy.impl.Op.f0c
 // CHECK:STDOUT:   %specific_impl_fn.loc28_12.2 => constants.%T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %ptr => constants.%ptr.ad9
 // CHECK:STDOUT:   %require_complete.loc28_12.2 => constants.%complete_type.e23
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.414, constants.%Z) {
+// CHECK:STDOUT: specific @A.F(constants.%X, constants.%A.facet.2e2, constants.%Z) {
 // CHECK:STDOUT:   %U.loc6_8.1 => constants.%Z
 // CHECK:STDOUT:   %pattern_type.loc6_18 => constants.%pattern_type.8f9
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %A.type => constants.%A.type.91f
-// CHECK:STDOUT:   %Self => constants.%A.facet.414
-// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.a0c
+// CHECK:STDOUT:   %A.type => constants.%A.type.515
+// CHECK:STDOUT:   %Self => constants.%A.facet.2e2
+// CHECK:STDOUT:   %tuple.type.loc6_38.1 => constants.%tuple.type.281
 // CHECK:STDOUT:   %Self.as_type.loc6_38.1 => constants.%tuple.type.a46
 // CHECK:STDOUT:   %tuple.type.loc6_38.2 => constants.%tuple.type.415
 // CHECK:STDOUT:   %pattern_type.loc6_24 => constants.%pattern_type.0b2
diff --git a/toolchain/check/testdata/interface/generic_vs_params.carbon b/toolchain/check/testdata/interface/generic_vs_params.carbon
index 241b2307e883..d87b2346c6af 100644
--- a/toolchain/check/testdata/interface/generic_vs_params.carbon
+++ b/toolchain/check/testdata/interface/generic_vs_params.carbon
@@ -76,45 +76,45 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %NotGenericNoParams.type: type = facet_type <@NotGenericNoParams> [concrete]
-// CHECK:STDOUT:   %Self.238: %NotGenericNoParams.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.f11: %NotGenericNoParams.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %NotGenericButParams.type.f26: type = generic_interface_type @NotGenericButParams [concrete]
 // CHECK:STDOUT:   %NotGenericButParams.generic: %NotGenericButParams.type.f26 = struct_value () [concrete]
-// CHECK:STDOUT:   %NotGenericButParams.type.014: type = facet_type <@NotGenericButParams> [concrete]
-// CHECK:STDOUT:   %Self.43b: %NotGenericButParams.type.014 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %NotGenericButParams.type.184: type = facet_type <@NotGenericButParams> [concrete]
+// CHECK:STDOUT:   %Self.8888: %NotGenericButParams.type.184 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.Self: type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %GenericAndParams.type.cde: type = generic_interface_type @GenericAndParams.loc6 [concrete]
 // CHECK:STDOUT:   %GenericAndParams.generic.827: %GenericAndParams.type.cde = struct_value () [concrete]
-// CHECK:STDOUT:   %GenericAndParams.type.73e: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.2f4: %GenericAndParams.type.73e = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %GenericAndParams.type.ed5: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.888d: %GenericAndParams.type.ed5 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %C.type: type = generic_class_type @C [concrete]
 // CHECK:STDOUT:   %C.generic: %C.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.f2e: type = class_type @C, @C(%T) [symbolic]
-// CHECK:STDOUT:   %GenericNoParams.type.b79: type = facet_type <@GenericNoParams, @GenericNoParams(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.0f6: %GenericNoParams.type.b79 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %GenericNoParams.type.635: type = facet_type <@GenericNoParams, @GenericNoParams(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.d19: %GenericNoParams.type.635 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 1 [symbolic]
 // CHECK:STDOUT:   %GenericAndParams.type.597: type = generic_interface_type @GenericAndParams.loc10, @C(%T) [symbolic]
 // CHECK:STDOUT:   %GenericAndParams.generic.2ec: %GenericAndParams.type.597 = struct_value () [symbolic]
-// CHECK:STDOUT:   %GenericAndParams.type.d96: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%T, %U)> [symbolic]
-// CHECK:STDOUT:   %Self.37a: %GenericAndParams.type.d96 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %GenericAndParams.type.72d: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%T, %U)> [symbolic]
+// CHECK:STDOUT:   %Self.a13: %GenericAndParams.type.72d = bind_symbolic_name Self, 2 [symbolic]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %X: type = class_type @X [concrete]
 // CHECK:STDOUT:   %NotGenericNoParams.impl_witness: <witness> = impl_witness file.%NotGenericNoParams.impl_witness_table [concrete]
 // CHECK:STDOUT:   %NotGenericButParams.impl_witness: <witness> = impl_witness file.%NotGenericButParams.impl_witness_table [concrete]
-// CHECK:STDOUT:   %GenericAndParams.type.4b6: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%X)> [concrete]
-// CHECK:STDOUT:   %Self.2f7: %GenericAndParams.type.4b6 = bind_symbolic_name Self, 1 [symbolic]
-// CHECK:STDOUT:   %GenericAndParams.impl_witness.c06: <witness> = impl_witness file.%GenericAndParams.impl_witness_table.loc16 [concrete]
+// CHECK:STDOUT:   %GenericAndParams.type.38a: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%X)> [concrete]
+// CHECK:STDOUT:   %Self.c8f: %GenericAndParams.type.38a = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %GenericAndParams.impl_witness.4b8: <witness> = impl_witness file.%GenericAndParams.impl_witness_table.loc16 [concrete]
 // CHECK:STDOUT:   %C.fac: type = class_type @C, @C(%X) [concrete]
-// CHECK:STDOUT:   %GenericNoParams.type.b7e: type = facet_type <@GenericNoParams, @GenericNoParams(%X)> [concrete]
+// CHECK:STDOUT:   %GenericNoParams.type.25b: type = facet_type <@GenericNoParams, @GenericNoParams(%X)> [concrete]
 // CHECK:STDOUT:   %GenericAndParams.type.425: type = generic_interface_type @GenericAndParams.loc10, @C(%X) [concrete]
 // CHECK:STDOUT:   %GenericAndParams.generic.b50: %GenericAndParams.type.425 = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.108: %GenericNoParams.type.b7e = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.15d: %GenericNoParams.type.25b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %GenericNoParams.impl_witness: <witness> = impl_witness file.%GenericNoParams.impl_witness_table [concrete]
-// CHECK:STDOUT:   %GenericAndParams.type.79c: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%X, %X)> [concrete]
-// CHECK:STDOUT:   %Self.f51: %GenericAndParams.type.79c = bind_symbolic_name Self, 2 [symbolic]
-// CHECK:STDOUT:   %GenericAndParams.impl_witness.c9b: <witness> = impl_witness file.%GenericAndParams.impl_witness_table.loc18 [concrete]
+// CHECK:STDOUT:   %GenericAndParams.type.034: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%X, %X)> [concrete]
+// CHECK:STDOUT:   %Self.73c: %GenericAndParams.type.034 = bind_symbolic_name Self, 2 [symbolic]
+// CHECK:STDOUT:   %GenericAndParams.impl_witness.c38: <witness> = impl_witness file.%GenericAndParams.impl_witness_table.loc18 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -149,29 +149,29 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   impl_decl @X.as.NotGenericButParams.impl [concrete] {} {
 // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:     %NotGenericButParams.ref: %NotGenericButParams.type.f26 = name_ref NotGenericButParams, file.%NotGenericButParams.decl [concrete = constants.%NotGenericButParams.generic]
-// CHECK:STDOUT:     %NotGenericButParams.type: type = facet_type <@NotGenericButParams> [concrete = constants.%NotGenericButParams.type.014]
+// CHECK:STDOUT:     %NotGenericButParams.type: type = facet_type <@NotGenericButParams> [concrete = constants.%NotGenericButParams.type.184]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %NotGenericButParams.impl_witness_table = impl_witness_table (), @X.as.NotGenericButParams.impl [concrete]
 // CHECK:STDOUT:   %NotGenericButParams.impl_witness: <witness> = impl_witness %NotGenericButParams.impl_witness_table [concrete = constants.%NotGenericButParams.impl_witness]
-// CHECK:STDOUT:   impl_decl @X.as.GenericAndParams.impl.87f [concrete] {} {
+// CHECK:STDOUT:   impl_decl @X.as.GenericAndParams.impl.a9b [concrete] {} {
 // CHECK:STDOUT:     %X.ref.loc16_6: type = name_ref X, file.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:     %GenericAndParams.ref: %GenericAndParams.type.cde = name_ref GenericAndParams, file.%GenericAndParams.decl [concrete = constants.%GenericAndParams.generic.827]
 // CHECK:STDOUT:     %X.ref.loc16_28: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:     %GenericAndParams.type: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(constants.%X)> [concrete = constants.%GenericAndParams.type.4b6]
+// CHECK:STDOUT:     %GenericAndParams.type: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(constants.%X)> [concrete = constants.%GenericAndParams.type.38a]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %GenericAndParams.impl_witness_table.loc16 = impl_witness_table (), @X.as.GenericAndParams.impl.87f [concrete]
-// CHECK:STDOUT:   %GenericAndParams.impl_witness.loc16: <witness> = impl_witness %GenericAndParams.impl_witness_table.loc16 [concrete = constants.%GenericAndParams.impl_witness.c06]
+// CHECK:STDOUT:   %GenericAndParams.impl_witness_table.loc16 = impl_witness_table (), @X.as.GenericAndParams.impl.a9b [concrete]
+// CHECK:STDOUT:   %GenericAndParams.impl_witness.loc16: <witness> = impl_witness %GenericAndParams.impl_witness_table.loc16 [concrete = constants.%GenericAndParams.impl_witness.4b8]
 // CHECK:STDOUT:   impl_decl @X.as.GenericNoParams.impl [concrete] {} {
 // CHECK:STDOUT:     %X.ref.loc17_6: type = name_ref X, file.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %X.ref.loc17_13: type = name_ref X, file.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:     %C: type = class_type @C, @C(constants.%X) [concrete = constants.%C.fac]
-// CHECK:STDOUT:     %.loc17: type = specific_constant @C.%GenericNoParams.decl, @C(constants.%X) [concrete = constants.%GenericNoParams.type.b7e]
-// CHECK:STDOUT:     %GenericNoParams.ref: type = name_ref GenericNoParams, %.loc17 [concrete = constants.%GenericNoParams.type.b7e]
+// CHECK:STDOUT:     %.loc17: type = specific_constant @C.%GenericNoParams.decl, @C(constants.%X) [concrete = constants.%GenericNoParams.type.25b]
+// CHECK:STDOUT:     %GenericNoParams.ref: type = name_ref GenericNoParams, %.loc17 [concrete = constants.%GenericNoParams.type.25b]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %GenericNoParams.impl_witness_table = impl_witness_table (), @X.as.GenericNoParams.impl [concrete]
 // CHECK:STDOUT:   %GenericNoParams.impl_witness: <witness> = impl_witness %GenericNoParams.impl_witness_table [concrete = constants.%GenericNoParams.impl_witness]
-// CHECK:STDOUT:   impl_decl @X.as.GenericAndParams.impl.15f [concrete] {} {
+// CHECK:STDOUT:   impl_decl @X.as.GenericAndParams.impl.32d [concrete] {} {
 // CHECK:STDOUT:     %X.ref.loc18_6: type = name_ref X, file.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %X.ref.loc18_13: type = name_ref X, file.%X.decl [concrete = constants.%X]
@@ -179,14 +179,14 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:     %.loc18: %GenericAndParams.type.425 = specific_constant @C.%GenericAndParams.decl, @C(constants.%X) [concrete = constants.%GenericAndParams.generic.b50]
 // CHECK:STDOUT:     %GenericAndParams.ref: %GenericAndParams.type.425 = name_ref GenericAndParams, %.loc18 [concrete = constants.%GenericAndParams.generic.b50]
 // CHECK:STDOUT:     %X.ref.loc18_33: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:     %GenericAndParams.type: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(constants.%X, constants.%X)> [concrete = constants.%GenericAndParams.type.79c]
+// CHECK:STDOUT:     %GenericAndParams.type: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(constants.%X, constants.%X)> [concrete = constants.%GenericAndParams.type.034]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %GenericAndParams.impl_witness_table.loc18 = impl_witness_table (), @X.as.GenericAndParams.impl.15f [concrete]
-// CHECK:STDOUT:   %GenericAndParams.impl_witness.loc18: <witness> = impl_witness %GenericAndParams.impl_witness_table.loc18 [concrete = constants.%GenericAndParams.impl_witness.c9b]
+// CHECK:STDOUT:   %GenericAndParams.impl_witness_table.loc18 = impl_witness_table (), @X.as.GenericAndParams.impl.32d [concrete]
+// CHECK:STDOUT:   %GenericAndParams.impl_witness.loc18: <witness> = impl_witness %GenericAndParams.impl_witness_table.loc18 [concrete = constants.%GenericAndParams.impl_witness.c38]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NotGenericNoParams {
-// CHECK:STDOUT:   %Self: %NotGenericNoParams.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.238]
+// CHECK:STDOUT:   %Self: %NotGenericNoParams.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f11]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -194,7 +194,7 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @NotGenericButParams {
-// CHECK:STDOUT:   %Self: %NotGenericButParams.type.014 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.43b]
+// CHECK:STDOUT:   %Self: %NotGenericButParams.type.184 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.8888]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -205,11 +205,11 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   %T.loc6_28.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc6_28.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericAndParams.type: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%T.loc6_28.1)> [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.73e)]
-// CHECK:STDOUT:   %Self.2: @GenericAndParams.loc6.%GenericAndParams.type (%GenericAndParams.type.73e) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2f4)]
+// CHECK:STDOUT:   %GenericAndParams.type: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%T.loc6_28.1)> [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.ed5)]
+// CHECK:STDOUT:   %Self.2: @GenericAndParams.loc6.%GenericAndParams.type (%GenericAndParams.type.ed5) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.888d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @GenericAndParams.loc6.%GenericAndParams.type (%GenericAndParams.type.73e) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2f4)]
+// CHECK:STDOUT:     %Self.1: @GenericAndParams.loc6.%GenericAndParams.type (%GenericAndParams.type.ed5) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.888d)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -220,11 +220,11 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: generic interface @GenericNoParams(@C.%T.loc8_9.2: type) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %GenericNoParams.type: type = facet_type <@GenericNoParams, @GenericNoParams(%T)> [symbolic = %GenericNoParams.type (constants.%GenericNoParams.type.b79)]
-// CHECK:STDOUT:   %Self.2: @GenericNoParams.%GenericNoParams.type (%GenericNoParams.type.b79) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f6)]
+// CHECK:STDOUT:   %GenericNoParams.type: type = facet_type <@GenericNoParams, @GenericNoParams(%T)> [symbolic = %GenericNoParams.type (constants.%GenericNoParams.type.635)]
+// CHECK:STDOUT:   %Self.2: @GenericNoParams.%GenericNoParams.type (%GenericNoParams.type.635) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.d19)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @GenericNoParams.%GenericNoParams.type (%GenericNoParams.type.b79) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0f6)]
+// CHECK:STDOUT:     %Self.1: @GenericNoParams.%GenericNoParams.type (%GenericNoParams.type.635) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.d19)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -237,11 +237,11 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
-// CHECK:STDOUT:   %GenericAndParams.type: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%T, %U.loc10_30.1)> [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.d96)]
-// CHECK:STDOUT:   %Self.2: @GenericAndParams.loc10.%GenericAndParams.type (%GenericAndParams.type.d96) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.37a)]
+// CHECK:STDOUT:   %GenericAndParams.type: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%T, %U.loc10_30.1)> [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.72d)]
+// CHECK:STDOUT:   %Self.2: @GenericAndParams.loc10.%GenericAndParams.type (%GenericAndParams.type.72d) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.a13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @GenericAndParams.loc10.%GenericAndParams.type (%GenericAndParams.type.d96) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.37a)]
+// CHECK:STDOUT:     %Self.1: @GenericAndParams.loc10.%GenericAndParams.type (%GenericAndParams.type.72d) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.a13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -259,7 +259,7 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   witness = file.%NotGenericButParams.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @X.as.GenericAndParams.impl.87f: %X.ref.loc16_6 as %GenericAndParams.type {
+// CHECK:STDOUT: impl @X.as.GenericAndParams.impl.a9b: %X.ref.loc16_6 as %GenericAndParams.type {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%GenericAndParams.impl_witness.loc16
 // CHECK:STDOUT: }
@@ -269,7 +269,7 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   witness = file.%GenericNoParams.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @X.as.GenericAndParams.impl.15f: %X.ref.loc18_6 as %GenericAndParams.type {
+// CHECK:STDOUT: impl @X.as.GenericAndParams.impl.32d: %X.ref.loc18_6 as %GenericAndParams.type {
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   witness = file.%GenericAndParams.impl_witness.loc18
 // CHECK:STDOUT: }
@@ -278,12 +278,12 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   %T.loc8_9.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_9.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericNoParams.type: type = facet_type <@GenericNoParams, @GenericNoParams(%T.loc8_9.1)> [symbolic = %GenericNoParams.type (constants.%GenericNoParams.type.b79)]
+// CHECK:STDOUT:   %GenericNoParams.type: type = facet_type <@GenericNoParams, @GenericNoParams(%T.loc8_9.1)> [symbolic = %GenericNoParams.type (constants.%GenericNoParams.type.635)]
 // CHECK:STDOUT:   %GenericAndParams.type: type = generic_interface_type @GenericAndParams.loc10, @C(%T.loc8_9.1) [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.597)]
 // CHECK:STDOUT:   %GenericAndParams.generic: @C.%GenericAndParams.type (%GenericAndParams.type.597) = struct_value () [symbolic = %GenericAndParams.generic (constants.%GenericAndParams.generic.2ec)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   class {
-// CHECK:STDOUT:     %GenericNoParams.decl: type = interface_decl @GenericNoParams [symbolic = @C.%GenericNoParams.type (constants.%GenericNoParams.type.b79)] {} {}
+// CHECK:STDOUT:     %GenericNoParams.decl: type = interface_decl @GenericNoParams [symbolic = @C.%GenericNoParams.type (constants.%GenericNoParams.type.635)] {} {}
 // CHECK:STDOUT:     %GenericAndParams.decl: @C.%GenericAndParams.type (%GenericAndParams.type.597) = interface_decl @GenericAndParams.loc10 [symbolic = @C.%GenericAndParams.generic (constants.%GenericAndParams.generic.2ec)] {
 // CHECK:STDOUT:       %U.patt: %pattern_type = symbolic_binding_pattern U, 1 [concrete]
 // CHECK:STDOUT:     } {
@@ -326,15 +326,15 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   %T.loc6_28.1 => constants.%X
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericAndParams.type => constants.%GenericAndParams.type.4b6
-// CHECK:STDOUT:   %Self.2 => constants.%Self.2f7
+// CHECK:STDOUT:   %GenericAndParams.type => constants.%GenericAndParams.type.38a
+// CHECK:STDOUT:   %Self.2 => constants.%Self.c8f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C(constants.%X) {
 // CHECK:STDOUT:   %T.loc8_9.1 => constants.%X
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %GenericNoParams.type => constants.%GenericNoParams.type.b7e
+// CHECK:STDOUT:   %GenericNoParams.type => constants.%GenericNoParams.type.25b
 // CHECK:STDOUT:   %GenericAndParams.type => constants.%GenericAndParams.type.425
 // CHECK:STDOUT:   %GenericAndParams.generic => constants.%GenericAndParams.generic.b50
 // CHECK:STDOUT: }
@@ -342,8 +342,8 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: specific @GenericNoParams(constants.%X) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %GenericNoParams.type => constants.%GenericNoParams.type.b7e
-// CHECK:STDOUT:   %Self.2 => constants.%Self.108
+// CHECK:STDOUT:   %GenericNoParams.type => constants.%GenericNoParams.type.25b
+// CHECK:STDOUT:   %Self.2 => constants.%Self.15d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @GenericAndParams.loc10(constants.%X, constants.%X) {
@@ -351,8 +351,8 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %T => constants.%X
-// CHECK:STDOUT:   %GenericAndParams.type => constants.%GenericAndParams.type.79c
-// CHECK:STDOUT:   %Self.2 => constants.%Self.f51
+// CHECK:STDOUT:   %GenericAndParams.type => constants.%GenericAndParams.type.034
+// CHECK:STDOUT:   %Self.2 => constants.%Self.73c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_non_generic_implicit_params.carbon
@@ -360,8 +360,8 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type.495: type = generic_interface_type @A [concrete]
 // CHECK:STDOUT:   %A.generic: %A.type.495 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.c7f: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self: %A.type.c7f = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %A.type.c27: type = facet_type <@A> [concrete]
+// CHECK:STDOUT:   %Self: %A.type.c27 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -372,7 +372,7 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type.c7f = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Self: %A.type.c27 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -384,8 +384,8 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %A.type.495: type = generic_interface_type @A [concrete]
 // CHECK:STDOUT:   %A.generic: %A.type.495 = struct_value () [concrete]
-// CHECK:STDOUT:   %A.type.c7f: type = facet_type <@A> [concrete]
-// CHECK:STDOUT:   %Self: %A.type.c7f = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %A.type.c27: type = facet_type <@A> [concrete]
+// CHECK:STDOUT:   %Self: %A.type.c27 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -396,7 +396,7 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @A {
-// CHECK:STDOUT:   %Self: %A.type.c7f = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Self: %A.type.c27 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -408,8 +408,8 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Bar.type.982: type = generic_interface_type @Bar [concrete]
 // CHECK:STDOUT:   %Bar.generic: %Bar.type.982 = struct_value () [concrete]
-// CHECK:STDOUT:   %Bar.type.ea3: type = facet_type <@Bar> [concrete]
-// CHECK:STDOUT:   %Self: %Bar.type.ea3 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Bar.type.a90: type = facet_type <@Bar> [concrete]
+// CHECK:STDOUT:   %Self: %Bar.type.a90 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -420,7 +420,7 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Bar {
-// CHECK:STDOUT:   %Self: %Bar.type.ea3 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
+// CHECK:STDOUT:   %Self: %Bar.type.a90 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -435,8 +435,8 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   %pattern_type: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Bar.type.982: type = generic_interface_type @Bar [concrete]
 // CHECK:STDOUT:   %Bar.generic: %Bar.type.982 = struct_value () [concrete]
-// CHECK:STDOUT:   %Bar.type.7ed: type = facet_type <@Bar, @Bar(%T)> [symbolic]
-// CHECK:STDOUT:   %Self: %Bar.type.7ed = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Bar.type.8cf: type = facet_type <@Bar, @Bar(%T)> [symbolic]
+// CHECK:STDOUT:   %Self: %Bar.type.8cf = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -455,11 +455,11 @@ interface Bar[T:! type] {}
 // CHECK:STDOUT:   %T.loc8_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_15.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Bar.type: type = facet_type <@Bar, @Bar(%T.loc8_15.1)> [symbolic = %Bar.type (constants.%Bar.type.7ed)]
-// CHECK:STDOUT:   %Self.2: @Bar.%Bar.type (%Bar.type.7ed) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Bar.type: type = facet_type <@Bar, @Bar(%T.loc8_15.1)> [symbolic = %Bar.type (constants.%Bar.type.8cf)]
+// CHECK:STDOUT:   %Self.2: @Bar.%Bar.type (%Bar.type.8cf) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Bar.%Bar.type (%Bar.type.7ed) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Bar.%Bar.type (%Bar.type.8cf) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/interface/import.carbon b/toolchain/check/testdata/interface/import.carbon
index 36e8054173e9..48ba2b78f281 100644
--- a/toolchain/check/testdata/interface/import.carbon
+++ b/toolchain/check/testdata/interface/import.carbon
@@ -56,16 +56,16 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
-// CHECK:STDOUT:   %Self.193: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b05: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Basic.type: type = facet_type <@Basic> [concrete]
-// CHECK:STDOUT:   %Self.1c7: %Basic.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ab9: %Basic.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Basic.assoc_type: type = assoc_entity_type @Basic [concrete]
 // CHECK:STDOUT:   %assoc0.0d9: %Basic.assoc_type = assoc_entity element0, @Basic.%T [concrete]
 // CHECK:STDOUT:   %Basic.F.type: type = fn_type @Basic.F [concrete]
 // CHECK:STDOUT:   %Basic.F: %Basic.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1.9b4: %Basic.assoc_type = assoc_entity element1, @Basic.%Basic.F.decl [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [concrete]
-// CHECK:STDOUT:   %Self.efa: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.9cc: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %ForwardDeclared.assoc_type: type = assoc_entity_type @ForwardDeclared [concrete]
 // CHECK:STDOUT:   %assoc0.27c: %ForwardDeclared.assoc_type = assoc_entity element0, @ForwardDeclared.%T [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.F.type: type = fn_type @ForwardDeclared.F [concrete]
@@ -98,7 +98,7 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Empty {
-// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.193]
+// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b05]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -106,7 +106,7 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Basic {
-// CHECK:STDOUT:   %Self: %Basic.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1c7]
+// CHECK:STDOUT:   %Self: %Basic.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ab9]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T.loc8 [concrete] {
 // CHECK:STDOUT:     %assoc0: %Basic.assoc_type = assoc_entity element0, @Basic.%T [concrete = constants.%assoc0.0d9]
 // CHECK:STDOUT:   }
@@ -121,7 +121,7 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @ForwardDeclared {
-// CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.efa]
+// CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9cc]
 // CHECK:STDOUT:   %T: type = assoc_const_decl @T.loc16 [concrete] {
 // CHECK:STDOUT:     %assoc0: %ForwardDeclared.assoc_type = assoc_entity element0, @ForwardDeclared.%T [concrete = constants.%assoc0.27c]
 // CHECK:STDOUT:   }
@@ -151,27 +151,27 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.loc8(constants.%Self.1c7) {}
+// CHECK:STDOUT: specific @T.loc8(constants.%Self.ab9) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @Basic.F(constants.%Self.1c7) {}
+// CHECK:STDOUT: specific @Basic.F(constants.%Self.ab9) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T.loc16(constants.%Self.efa) {}
+// CHECK:STDOUT: specific @T.loc16(constants.%Self.9cc) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @ForwardDeclared.F(constants.%Self.efa) {}
+// CHECK:STDOUT: specific @ForwardDeclared.F(constants.%Self.9cc) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- b.carbon
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
-// CHECK:STDOUT:   %pattern_type.6c3: type = pattern_type %Empty.type [concrete]
+// CHECK:STDOUT:   %pattern_type.291: type = pattern_type %Empty.type [concrete]
 // CHECK:STDOUT:   %UseEmpty.type: type = fn_type @UseEmpty [concrete]
 // CHECK:STDOUT:   %UseEmpty: %UseEmpty.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Basic.type: type = facet_type <@Basic> [concrete]
-// CHECK:STDOUT:   %pattern_type.d8e: type = pattern_type %Basic.type [concrete]
+// CHECK:STDOUT:   %pattern_type.9a1: type = pattern_type %Basic.type [concrete]
 // CHECK:STDOUT:   %UseBasic.type: type = fn_type @UseBasic [concrete]
 // CHECK:STDOUT:   %UseBasic: %UseBasic.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [concrete]
-// CHECK:STDOUT:   %pattern_type.fe1: type = pattern_type %ForwardDeclared.type [concrete]
+// CHECK:STDOUT:   %pattern_type.328: type = pattern_type %ForwardDeclared.type [concrete]
 // CHECK:STDOUT:   %UseForwardDeclared.type: type = fn_type @UseForwardDeclared [concrete]
 // CHECK:STDOUT:   %UseForwardDeclared: %UseForwardDeclared.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Basic.assoc_type: type = assoc_entity_type @Basic [concrete]
@@ -181,11 +181,11 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   %assoc0.d40: %ForwardDeclared.assoc_type = assoc_entity element0, imports.%Main.import_ref.69a [concrete]
 // CHECK:STDOUT:   %assoc1.e3d: %ForwardDeclared.assoc_type = assoc_entity element1, imports.%Main.import_ref.1cc [concrete]
 // CHECK:STDOUT:   %ptr: type = ptr_type %ForwardDeclared.type [concrete]
-// CHECK:STDOUT:   %pattern_type.97e: type = pattern_type %ptr [concrete]
+// CHECK:STDOUT:   %pattern_type.d44: type = pattern_type %ptr [concrete]
 // CHECK:STDOUT:   %struct_type.f: type = struct_type {.f: %ForwardDeclared.type} [concrete]
-// CHECK:STDOUT:   %pattern_type.e3b: type = pattern_type %struct_type.f [concrete]
-// CHECK:STDOUT:   %.7e4: ref %ForwardDeclared.type = struct_access imports.%f_ref.var, element0 [concrete]
-// CHECK:STDOUT:   %addr: %ptr = addr_of %.7e4 [concrete]
+// CHECK:STDOUT:   %pattern_type.ffe: type = pattern_type %struct_type.f [concrete]
+// CHECK:STDOUT:   %.b5f: ref %ForwardDeclared.type = struct_access imports.%f_ref.var, element0 [concrete]
+// CHECK:STDOUT:   %addr: %ptr = addr_of %.b5f [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -193,13 +193,13 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   %Main.Basic: type = import_ref Main//a, Basic, loaded [concrete = constants.%Basic.type]
 // CHECK:STDOUT:   %Main.ForwardDeclared: type = import_ref Main//a, ForwardDeclared, loaded [concrete = constants.%ForwardDeclared.type]
 // CHECK:STDOUT:   %Main.f_ref: ref %struct_type.f = import_ref Main//a, f_ref, loaded [concrete = %f_ref.var]
-// CHECK:STDOUT:   %Main.import_ref.cc0 = import_ref Main//a, inst17 [no loc], unloaded
-// CHECK:STDOUT:   %Main.import_ref.37f = import_ref Main//a, inst22 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.03a = import_ref Main//a, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.e4b = import_ref Main//a, inst22 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.3d5: %Basic.assoc_type = import_ref Main//a, loc8_8, loaded [concrete = constants.%assoc0.fee]
 // CHECK:STDOUT:   %Main.import_ref.760: %Basic.assoc_type = import_ref Main//a, loc9_9, loaded [concrete = constants.%assoc1.4ea]
 // CHECK:STDOUT:   %Main.T.44f = import_ref Main//a, T, unloaded
 // CHECK:STDOUT:   %Main.F.eea = import_ref Main//a, F, unloaded
-// CHECK:STDOUT:   %Main.import_ref.52b = import_ref Main//a, inst37 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.3bd = import_ref Main//a, inst37 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.ad1: %ForwardDeclared.assoc_type = import_ref Main//a, loc16_8, loaded [concrete = constants.%assoc0.d40]
 // CHECK:STDOUT:   %Main.import_ref.339: %ForwardDeclared.assoc_type = import_ref Main//a, loc17_9, loaded [concrete = constants.%assoc1.e3d]
 // CHECK:STDOUT:   %Main.T.6ee = import_ref Main//a, T, unloaded
@@ -208,8 +208,8 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   %Main.import_ref.0be = import_ref Main//a, loc9_9, unloaded
 // CHECK:STDOUT:   %Main.import_ref.69a = import_ref Main//a, loc16_8, unloaded
 // CHECK:STDOUT:   %Main.import_ref.1cc = import_ref Main//a, loc17_9, unloaded
-// CHECK:STDOUT:   %f_ref.patt: %pattern_type.e3b = binding_pattern f_ref [concrete]
-// CHECK:STDOUT:   %f_ref.var_patt: %pattern_type.e3b = var_pattern %f_ref.patt [concrete]
+// CHECK:STDOUT:   %f_ref.patt: %pattern_type.ffe = binding_pattern f_ref [concrete]
+// CHECK:STDOUT:   %f_ref.var_patt: %pattern_type.ffe = var_pattern %f_ref.patt [concrete]
 // CHECK:STDOUT:   %f_ref.var: ref %struct_type.f = var %f_ref.var_patt [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -230,24 +230,24 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %default.import = import <none>
 // CHECK:STDOUT:   %UseEmpty.decl: %UseEmpty.type = fn_decl @UseEmpty [concrete = constants.%UseEmpty] {
-// CHECK:STDOUT:     %e.patt: %pattern_type.6c3 = binding_pattern e [concrete]
-// CHECK:STDOUT:     %e.param_patt: %pattern_type.6c3 = value_param_pattern %e.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %e.patt: %pattern_type.291 = binding_pattern e [concrete]
+// CHECK:STDOUT:     %e.param_patt: %pattern_type.291 = value_param_pattern %e.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %e.param: %Empty.type = value_param call_param0
 // CHECK:STDOUT:     %Empty.ref: type = name_ref Empty, imports.%Main.Empty [concrete = constants.%Empty.type]
 // CHECK:STDOUT:     %e: %Empty.type = bind_name e, %e.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %UseBasic.decl: %UseBasic.type = fn_decl @UseBasic [concrete = constants.%UseBasic] {
-// CHECK:STDOUT:     %e.patt: %pattern_type.d8e = binding_pattern e [concrete]
-// CHECK:STDOUT:     %e.param_patt: %pattern_type.d8e = value_param_pattern %e.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %e.patt: %pattern_type.9a1 = binding_pattern e [concrete]
+// CHECK:STDOUT:     %e.param_patt: %pattern_type.9a1 = value_param_pattern %e.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %e.param: %Basic.type = value_param call_param0
 // CHECK:STDOUT:     %Basic.ref: type = name_ref Basic, imports.%Main.Basic [concrete = constants.%Basic.type]
 // CHECK:STDOUT:     %e: %Basic.type = bind_name e, %e.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %UseForwardDeclared.decl: %UseForwardDeclared.type = fn_decl @UseForwardDeclared [concrete = constants.%UseForwardDeclared] {
-// CHECK:STDOUT:     %f.patt: %pattern_type.fe1 = binding_pattern f [concrete]
-// CHECK:STDOUT:     %f.param_patt: %pattern_type.fe1 = value_param_pattern %f.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %f.patt: %pattern_type.328 = binding_pattern f [concrete]
+// CHECK:STDOUT:     %f.param_patt: %pattern_type.328 = value_param_pattern %f.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %f.param: %ForwardDeclared.type = value_param call_param0
 // CHECK:STDOUT:     %ForwardDeclared.ref: type = name_ref ForwardDeclared, imports.%Main.ForwardDeclared [concrete = constants.%ForwardDeclared.type]
@@ -266,8 +266,8 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   %F.ref.loc14: %ForwardDeclared.assoc_type = name_ref F, imports.%Main.import_ref.339 [concrete = constants.%assoc1.e3d]
 // CHECK:STDOUT:   %UseForwardDeclaredF: %ForwardDeclared.assoc_type = bind_alias UseForwardDeclaredF, imports.%Main.import_ref.339 [concrete = constants.%assoc1.e3d]
 // CHECK:STDOUT:   name_binding_decl {
-// CHECK:STDOUT:     %f.patt: %pattern_type.97e = binding_pattern f [concrete]
-// CHECK:STDOUT:     %f.var_patt: %pattern_type.97e = var_pattern %f.patt [concrete]
+// CHECK:STDOUT:     %f.patt: %pattern_type.d44 = binding_pattern f [concrete]
+// CHECK:STDOUT:     %f.var_patt: %pattern_type.d44 = var_pattern %f.patt [concrete]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %f.var: ref %ptr = var %f.var_patt [concrete]
 // CHECK:STDOUT:   %.loc16: type = splice_block %ptr [concrete = constants.%ptr] {
@@ -279,13 +279,13 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Empty [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.cc0
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.03a
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Basic [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.37f
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.e4b
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.3d5
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.760
 // CHECK:STDOUT:   witness = (imports.%Main.T.44f, imports.%Main.F.eea)
@@ -293,7 +293,7 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @ForwardDeclared [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.52b
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.3bd
 // CHECK:STDOUT:   .T = imports.%Main.import_ref.ad1
 // CHECK:STDOUT:   .F = imports.%Main.import_ref.339
 // CHECK:STDOUT:   witness = (imports.%Main.T.6ee, imports.%Main.F.5d0)
@@ -317,7 +317,7 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %f_ref.ref: ref %struct_type.f = name_ref f_ref, imports.%Main.f_ref [concrete = imports.%f_ref.var]
-// CHECK:STDOUT:   %.loc16: ref %ForwardDeclared.type = struct_access %f_ref.ref, element0 [concrete = constants.%.7e4]
+// CHECK:STDOUT:   %.loc16: ref %ForwardDeclared.type = struct_access %f_ref.ref, element0 [concrete = constants.%.b5f]
 // CHECK:STDOUT:   %addr: %ptr = addr_of %.loc16 [concrete = constants.%addr]
 // CHECK:STDOUT:   assign file.%f.var, %addr
 // CHECK:STDOUT:   return
diff --git a/toolchain/check/testdata/interface/import_interface_decl.carbon b/toolchain/check/testdata/interface/import_interface_decl.carbon
index ed506a7a61ac..2bf47347bd8f 100644
--- a/toolchain/check/testdata/interface/import_interface_decl.carbon
+++ b/toolchain/check/testdata/interface/import_interface_decl.carbon
@@ -102,7 +102,7 @@ impl library "[[@TEST_NAME]]";
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.B = import_ref Main//b, B, unloaded
-// CHECK:STDOUT:   %Main.import_ref.420 = import_ref Main//b, inst17 [no loc], unloaded
+// CHECK:STDOUT:   %Main.import_ref.d2c = import_ref Main//b, inst17 [no loc], unloaded
 // CHECK:STDOUT:   %Main.import_ref.e5c: type = import_ref Main//b, loc7_7, loaded [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   %Main.import_ref.171: type = import_ref Main//b, loc7_12, loaded [concrete = constants.%B.type]
 // CHECK:STDOUT: }
@@ -117,7 +117,7 @@ impl library "[[@TEST_NAME]]";
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @B [from "fail_b.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   .Self = imports.%Main.import_ref.420
+// CHECK:STDOUT:   .Self = imports.%Main.import_ref.d2c
 // CHECK:STDOUT:   witness = ()
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/local.carbon b/toolchain/check/testdata/interface/local.carbon
index 74acd2e0a216..037bb44050fc 100644
--- a/toolchain/check/testdata/interface/local.carbon
+++ b/toolchain/check/testdata/interface/local.carbon
@@ -31,7 +31,7 @@ fn F() {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.744: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.2a6: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %I.G.type: type = fn_type @I.G [concrete]
 // CHECK:STDOUT:   %I.G: %I.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
@@ -41,7 +41,7 @@ fn F() {
 // CHECK:STDOUT:   %empty_tuple.type.as.I.impl.G.type: type = fn_type @empty_tuple.type.as.I.impl.G [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.I.impl.G: %empty_tuple.type.as.I.impl.G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %empty_tuple.type, (%I.impl_witness) [concrete]
-// CHECK:STDOUT:   %.ba5: type = fn_type_with_self_type %I.G.type, %I.facet [concrete]
+// CHECK:STDOUT:   %.929: type = fn_type_with_self_type %I.G.type, %I.facet [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -55,8 +55,8 @@ fn F() {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %I.G.decl: %I.G.type = fn_decl @I.G [concrete = constants.%I.G] {
-// CHECK:STDOUT:     %self.patt: @I.G.%pattern_type (%pattern_type.744) = binding_pattern self [concrete]
-// CHECK:STDOUT:     %self.param_patt: @I.G.%pattern_type (%pattern_type.744) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %self.patt: @I.G.%pattern_type (%pattern_type.2a6) = binding_pattern self [concrete]
+// CHECK:STDOUT:     %self.param_patt: @I.G.%pattern_type (%pattern_type.2a6) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %self.param: @I.G.%Self.as_type.loc17_16.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:     %.loc17_16.1: type = splice_block %.loc17_16.2 [symbolic = %Self.as_type.loc17_16.1 (constants.%Self.as_type)] {
@@ -102,7 +102,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc22_4.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:   %I.ref: type = name_ref I, %I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:   %G.ref: %I.assoc_type = name_ref G, @I.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.ba5 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.I.impl.G]
+// CHECK:STDOUT:   %impl.elem0: %.929 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.I.impl.G]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc22_4.1, %impl.elem0
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc22_4.2: %empty_tuple.type = converted %.loc22_4.1, %empty_tuple [concrete = constants.%empty_tuple]
@@ -113,7 +113,7 @@ fn F() {
 // CHECK:STDOUT: generic fn @I.G(@I.%Self: %I.type) {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc17_16.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc17_16.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc17_16.1 [symbolic = %pattern_type (constants.%pattern_type.744)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc17_16.1 [symbolic = %pattern_type (constants.%pattern_type.2a6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @I.G.%Self.as_type.loc17_16.1 (%Self.as_type));
 // CHECK:STDOUT: }
@@ -126,7 +126,7 @@ fn F() {
 // CHECK:STDOUT: specific @I.G(constants.%Self) {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc17_16.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.744
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.2a6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @I.G(constants.%I.facet) {
diff --git a/toolchain/check/testdata/interface/member_lookup.carbon b/toolchain/check/testdata/interface/member_lookup.carbon
index 644b71c90fe9..43f90699d131 100644
--- a/toolchain/check/testdata/interface/member_lookup.carbon
+++ b/toolchain/check/testdata/interface/member_lookup.carbon
@@ -60,40 +60,40 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Interface.type.e32: type = generic_interface_type @Interface [concrete]
 // CHECK:STDOUT:   %Interface.generic: %Interface.type.e32 = struct_value () [concrete]
-// CHECK:STDOUT:   %Interface.type.d32: type = facet_type <@Interface, @Interface(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.a5f: %Interface.type.d32 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Interface.type.1a8: type = facet_type <@Interface, @Interface(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.c05: %Interface.type.1a8 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %Interface.assoc_type.0d9: type = assoc_entity_type @Interface, @Interface(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.dbe: %Interface.assoc_type.0d9 = assoc_entity element0, @Interface.%X [symbolic]
-// CHECK:STDOUT:   %I.a5f: %Interface.type.d32 = bind_symbolic_name I, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f17: type = pattern_type %Interface.type.d32 [symbolic]
+// CHECK:STDOUT:   %I.c05: %Interface.type.1a8 = bind_symbolic_name I, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.eaa: type = pattern_type %Interface.type.1a8 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %AccessGeneric.type: type = fn_type @AccessGeneric [concrete]
 // CHECK:STDOUT:   %AccessGeneric: %AccessGeneric.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.6f3: <witness> = require_complete_type %Interface.type.d32 [symbolic]
-// CHECK:STDOUT:   %I.as_type.59e: type = facet_access_type %I.a5f [symbolic]
-// CHECK:STDOUT:   %Interface.lookup_impl_witness.854: <witness> = lookup_impl_witness %I.a5f, @Interface, @Interface(%T) [symbolic]
-// CHECK:STDOUT:   %Interface.facet.e18: %Interface.type.d32 = facet_value %I.as_type.59e, (%Interface.lookup_impl_witness.854) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.7b9: %T = impl_witness_access %Interface.lookup_impl_witness.854, element0 [symbolic]
+// CHECK:STDOUT:   %require_complete.376: <witness> = require_complete_type %Interface.type.1a8 [symbolic]
+// CHECK:STDOUT:   %I.as_type.fe1: type = facet_access_type %I.c05 [symbolic]
+// CHECK:STDOUT:   %Interface.lookup_impl_witness.301: <witness> = lookup_impl_witness %I.c05, @Interface, @Interface(%T) [symbolic]
+// CHECK:STDOUT:   %Interface.facet.b19: %Interface.type.1a8 = facet_value %I.as_type.fe1, (%Interface.lookup_impl_witness.301) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.245: %T = impl_witness_access %Interface.lookup_impl_witness.301, element0 [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %Interface.type.981: type = facet_type <@Interface, @Interface(%i32)> [concrete]
-// CHECK:STDOUT:   %I.d08: %Interface.type.981 = bind_symbolic_name I, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.875: type = pattern_type %Interface.type.981 [concrete]
+// CHECK:STDOUT:   %Interface.type.bcd: type = facet_type <@Interface, @Interface(%i32)> [concrete]
+// CHECK:STDOUT:   %I.910: %Interface.type.bcd = bind_symbolic_name I, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.1c1: type = pattern_type %Interface.type.bcd [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %AccessConcrete.type: type = fn_type @AccessConcrete [concrete]
 // CHECK:STDOUT:   %AccessConcrete: %AccessConcrete.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32.builtin: type = int_type signed, %int_32 [concrete]
 // CHECK:STDOUT:   %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
-// CHECK:STDOUT:   %Self.62a: %Interface.type.981 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.e75: %Interface.type.bcd = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Interface.assoc_type.aaa: type = assoc_entity_type @Interface, @Interface(%i32) [concrete]
 // CHECK:STDOUT:   %assoc0.69f: %Interface.assoc_type.aaa = assoc_entity element0, @Interface.%X [concrete]
-// CHECK:STDOUT:   %I.as_type.ee6: type = facet_access_type %I.d08 [symbolic]
-// CHECK:STDOUT:   %Interface.lookup_impl_witness.a96: <witness> = lookup_impl_witness %I.d08, @Interface, @Interface(%i32) [symbolic]
-// CHECK:STDOUT:   %Interface.facet.06c: %Interface.type.981 = facet_value %I.as_type.ee6, (%Interface.lookup_impl_witness.a96) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.e13: %i32 = impl_witness_access %Interface.lookup_impl_witness.a96, element0 [symbolic]
+// CHECK:STDOUT:   %I.as_type.85e: type = facet_access_type %I.910 [symbolic]
+// CHECK:STDOUT:   %Interface.lookup_impl_witness.73f: <witness> = lookup_impl_witness %I.910, @Interface, @Interface(%i32) [symbolic]
+// CHECK:STDOUT:   %Interface.facet.c5c: %Interface.type.bcd = facet_value %I.as_type.85e, (%Interface.lookup_impl_witness.73f) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.f4f: %i32 = impl_witness_access %Interface.lookup_impl_witness.73f, element0 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -121,38 +121,38 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AccessGeneric.decl: %AccessGeneric.type = fn_decl @AccessGeneric [concrete = constants.%AccessGeneric] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %I.patt: @AccessGeneric.%pattern_type.loc8_28 (%pattern_type.f17) = symbolic_binding_pattern I, 1 [concrete]
+// CHECK:STDOUT:     %I.patt: @AccessGeneric.%pattern_type.loc8_28 (%pattern_type.eaa) = symbolic_binding_pattern I, 1 [concrete]
 // CHECK:STDOUT:     %return.patt: @AccessGeneric.%pattern_type.loc8_46 (%pattern_type.7dcd0a.1) = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: @AccessGeneric.%pattern_type.loc8_46 (%pattern_type.7dcd0a.1) = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc8_49: type = name_ref T, %T.loc8_18.2 [symbolic = %T.loc8_18.1 (constants.%T)]
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:     %T.loc8_18.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_18.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc8: type = splice_block %Interface.type.loc8_43.2 [symbolic = %Interface.type.loc8_43.1 (constants.%Interface.type.d32)] {
+// CHECK:STDOUT:     %.loc8: type = splice_block %Interface.type.loc8_43.2 [symbolic = %Interface.type.loc8_43.1 (constants.%Interface.type.1a8)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %Interface.ref: %Interface.type.e32 = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.generic]
 // CHECK:STDOUT:       %T.ref.loc8_42: type = name_ref T, %T.loc8_18.2 [symbolic = %T.loc8_18.1 (constants.%T)]
-// CHECK:STDOUT:       %Interface.type.loc8_43.2: type = facet_type <@Interface, @Interface(constants.%T)> [symbolic = %Interface.type.loc8_43.1 (constants.%Interface.type.d32)]
+// CHECK:STDOUT:       %Interface.type.loc8_43.2: type = facet_type <@Interface, @Interface(constants.%T)> [symbolic = %Interface.type.loc8_43.1 (constants.%Interface.type.1a8)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %I.loc8_28.2: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.d32) = bind_symbolic_name I, 1 [symbolic = %I.loc8_28.1 (constants.%I.a5f)]
+// CHECK:STDOUT:     %I.loc8_28.2: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.1a8) = bind_symbolic_name I, 1 [symbolic = %I.loc8_28.1 (constants.%I.c05)]
 // CHECK:STDOUT:     %return.param: ref @AccessGeneric.%T.loc8_18.1 (%T) = out_param call_param0
 // CHECK:STDOUT:     %return: ref @AccessGeneric.%T.loc8_18.1 (%T) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AccessConcrete.decl: %AccessConcrete.type = fn_decl @AccessConcrete [concrete = constants.%AccessConcrete] {
-// CHECK:STDOUT:     %I.patt: %pattern_type.875 = symbolic_binding_pattern I, 0 [concrete]
+// CHECK:STDOUT:     %I.patt: %pattern_type.1c1 = symbolic_binding_pattern I, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %int_32.loc12_42: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc12_42: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %.loc12: type = splice_block %Interface.type [concrete = constants.%Interface.type.981] {
+// CHECK:STDOUT:     %.loc12: type = splice_block %Interface.type [concrete = constants.%Interface.type.bcd] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self.644]
 // CHECK:STDOUT:       %Interface.ref: %Interface.type.e32 = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.generic]
 // CHECK:STDOUT:       %int_32.loc12_33: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32.loc12_33: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:       %Interface.type: type = facet_type <@Interface, @Interface(constants.%i32)> [concrete = constants.%Interface.type.981]
+// CHECK:STDOUT:       %Interface.type: type = facet_type <@Interface, @Interface(constants.%i32)> [concrete = constants.%Interface.type.bcd]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %I.loc12_19.2: %Interface.type.981 = bind_symbolic_name I, 0 [symbolic = %I.loc12_19.1 (constants.%I.d08)]
+// CHECK:STDOUT:     %I.loc12_19.2: %Interface.type.bcd = bind_symbolic_name I, 0 [symbolic = %I.loc12_19.1 (constants.%I.910)]
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param0
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
@@ -162,13 +162,13 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %T.loc4_21.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface, @Interface(%T.loc4_21.1)> [symbolic = %Interface.type (constants.%Interface.type.d32)]
-// CHECK:STDOUT:   %Self.2: @Interface.%Interface.type (%Interface.type.d32) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a5f)]
+// CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface, @Interface(%T.loc4_21.1)> [symbolic = %Interface.type (constants.%Interface.type.1a8)]
+// CHECK:STDOUT:   %Self.2: @Interface.%Interface.type (%Interface.type.1a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c05)]
 // CHECK:STDOUT:   %Interface.assoc_type: type = assoc_entity_type @Interface, @Interface(%T.loc4_21.1) [symbolic = %Interface.assoc_type (constants.%Interface.assoc_type.0d9)]
 // CHECK:STDOUT:   %assoc0: @Interface.%Interface.assoc_type (%Interface.assoc_type.0d9) = assoc_entity element0, %X [symbolic = %assoc0 (constants.%assoc0.dbe)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Interface.%Interface.type (%Interface.type.d32) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a5f)]
+// CHECK:STDOUT:     %Self.1: @Interface.%Interface.type (%Interface.type.1a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c05)]
 // CHECK:STDOUT:     %X: @X.%T (%T) = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:       %assoc0: @Interface.%Interface.assoc_type (%Interface.assoc_type.0d9) = assoc_entity element0, @Interface.%X [symbolic = @Interface.%assoc0 (constants.%assoc0.dbe)]
 // CHECK:STDOUT:     }
@@ -181,57 +181,57 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @X(@Interface.%T.loc4_21.2: type, @Interface.%Self.1: @Interface.%Interface.type (%Interface.type.d32)) {
+// CHECK:STDOUT: generic assoc_const @X(@Interface.%T.loc4_21.2: type, @Interface.%Self.1: @Interface.%Interface.type (%Interface.type.1a8)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic = %require_complete (constants.%require_complete.4ae)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   assoc_const X:! @X.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AccessGeneric(%T.loc8_18.2: type, %I.loc8_28.2: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.d32)) {
+// CHECK:STDOUT: generic fn @AccessGeneric(%T.loc8_18.2: type, %I.loc8_28.2: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.1a8)) {
 // CHECK:STDOUT:   %T.loc8_18.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_18.1 (constants.%T)]
-// CHECK:STDOUT:   %Interface.type.loc8_43.1: type = facet_type <@Interface, @Interface(%T.loc8_18.1)> [symbolic = %Interface.type.loc8_43.1 (constants.%Interface.type.d32)]
-// CHECK:STDOUT:   %I.loc8_28.1: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.d32) = bind_symbolic_name I, 1 [symbolic = %I.loc8_28.1 (constants.%I.a5f)]
-// CHECK:STDOUT:   %pattern_type.loc8_28: type = pattern_type %Interface.type.loc8_43.1 [symbolic = %pattern_type.loc8_28 (constants.%pattern_type.f17)]
+// CHECK:STDOUT:   %Interface.type.loc8_43.1: type = facet_type <@Interface, @Interface(%T.loc8_18.1)> [symbolic = %Interface.type.loc8_43.1 (constants.%Interface.type.1a8)]
+// CHECK:STDOUT:   %I.loc8_28.1: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.1a8) = bind_symbolic_name I, 1 [symbolic = %I.loc8_28.1 (constants.%I.c05)]
+// CHECK:STDOUT:   %pattern_type.loc8_28: type = pattern_type %Interface.type.loc8_43.1 [symbolic = %pattern_type.loc8_28 (constants.%pattern_type.eaa)]
 // CHECK:STDOUT:   %pattern_type.loc8_46: type = pattern_type %T.loc8_18.1 [symbolic = %pattern_type.loc8_46 (constants.%pattern_type.7dcd0a.1)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc9_10: <witness> = require_complete_type %Interface.type.loc8_43.1 [symbolic = %require_complete.loc9_10 (constants.%require_complete.6f3)]
+// CHECK:STDOUT:   %require_complete.loc9_10: <witness> = require_complete_type %Interface.type.loc8_43.1 [symbolic = %require_complete.loc9_10 (constants.%require_complete.376)]
 // CHECK:STDOUT:   %Interface.assoc_type: type = assoc_entity_type @Interface, @Interface(%T.loc8_18.1) [symbolic = %Interface.assoc_type (constants.%Interface.assoc_type.0d9)]
 // CHECK:STDOUT:   %assoc0: @AccessGeneric.%Interface.assoc_type (%Interface.assoc_type.0d9) = assoc_entity element0, @Interface.%X [symbolic = %assoc0 (constants.%assoc0.dbe)]
-// CHECK:STDOUT:   %I.as_type.loc9_11.2: type = facet_access_type %I.loc8_28.1 [symbolic = %I.as_type.loc9_11.2 (constants.%I.as_type.59e)]
-// CHECK:STDOUT:   %Interface.lookup_impl_witness: <witness> = lookup_impl_witness %I.loc8_28.1, @Interface, @Interface(%T.loc8_18.1) [symbolic = %Interface.lookup_impl_witness (constants.%Interface.lookup_impl_witness.854)]
-// CHECK:STDOUT:   %impl.elem0.loc9_11.2: @AccessGeneric.%T.loc8_18.1 (%T) = impl_witness_access %Interface.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_11.2 (constants.%impl.elem0.7b9)]
+// CHECK:STDOUT:   %I.as_type.loc9_11.2: type = facet_access_type %I.loc8_28.1 [symbolic = %I.as_type.loc9_11.2 (constants.%I.as_type.fe1)]
+// CHECK:STDOUT:   %Interface.lookup_impl_witness: <witness> = lookup_impl_witness %I.loc8_28.1, @Interface, @Interface(%T.loc8_18.1) [symbolic = %Interface.lookup_impl_witness (constants.%Interface.lookup_impl_witness.301)]
+// CHECK:STDOUT:   %impl.elem0.loc9_11.2: @AccessGeneric.%T.loc8_18.1 (%T) = impl_witness_access %Interface.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc9_11.2 (constants.%impl.elem0.245)]
 // CHECK:STDOUT:   %require_complete.loc9_13: <witness> = require_complete_type %T.loc8_18.1 [symbolic = %require_complete.loc9_13 (constants.%require_complete.4ae)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> @AccessGeneric.%T.loc8_18.1 (%T) {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %I.ref: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.d32) = name_ref I, %I.loc8_28.2 [symbolic = %I.loc8_28.1 (constants.%I.a5f)]
+// CHECK:STDOUT:     %I.ref: @AccessGeneric.%Interface.type.loc8_43.1 (%Interface.type.1a8) = name_ref I, %I.loc8_28.2 [symbolic = %I.loc8_28.1 (constants.%I.c05)]
 // CHECK:STDOUT:     %.loc9_11.1: @AccessGeneric.%Interface.assoc_type (%Interface.assoc_type.0d9) = specific_constant @X.%assoc0, @Interface(constants.%T) [symbolic = %assoc0 (constants.%assoc0.dbe)]
 // CHECK:STDOUT:     %X.ref: @AccessGeneric.%Interface.assoc_type (%Interface.assoc_type.0d9) = name_ref X, %.loc9_11.1 [symbolic = %assoc0 (constants.%assoc0.dbe)]
-// CHECK:STDOUT:     %I.as_type.loc9_11.1: type = facet_access_type %I.ref [symbolic = %I.as_type.loc9_11.2 (constants.%I.as_type.59e)]
-// CHECK:STDOUT:     %.loc9_11.2: type = converted %I.ref, %I.as_type.loc9_11.1 [symbolic = %I.as_type.loc9_11.2 (constants.%I.as_type.59e)]
-// CHECK:STDOUT:     %impl.elem0.loc9_11.1: @AccessGeneric.%T.loc8_18.1 (%T) = impl_witness_access constants.%Interface.lookup_impl_witness.854, element0 [symbolic = %impl.elem0.loc9_11.2 (constants.%impl.elem0.7b9)]
+// CHECK:STDOUT:     %I.as_type.loc9_11.1: type = facet_access_type %I.ref [symbolic = %I.as_type.loc9_11.2 (constants.%I.as_type.fe1)]
+// CHECK:STDOUT:     %.loc9_11.2: type = converted %I.ref, %I.as_type.loc9_11.1 [symbolic = %I.as_type.loc9_11.2 (constants.%I.as_type.fe1)]
+// CHECK:STDOUT:     %impl.elem0.loc9_11.1: @AccessGeneric.%T.loc8_18.1 (%T) = impl_witness_access constants.%Interface.lookup_impl_witness.301, element0 [symbolic = %impl.elem0.loc9_11.2 (constants.%impl.elem0.245)]
 // CHECK:STDOUT:     return %impl.elem0.loc9_11.1
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AccessConcrete(%I.loc12_19.2: %Interface.type.981) {
-// CHECK:STDOUT:   %I.loc12_19.1: %Interface.type.981 = bind_symbolic_name I, 0 [symbolic = %I.loc12_19.1 (constants.%I.d08)]
+// CHECK:STDOUT: generic fn @AccessConcrete(%I.loc12_19.2: %Interface.type.bcd) {
+// CHECK:STDOUT:   %I.loc12_19.1: %Interface.type.bcd = bind_symbolic_name I, 0 [symbolic = %I.loc12_19.1 (constants.%I.910)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %I.as_type.loc13_11.2: type = facet_access_type %I.loc12_19.1 [symbolic = %I.as_type.loc13_11.2 (constants.%I.as_type.ee6)]
-// CHECK:STDOUT:   %Interface.lookup_impl_witness: <witness> = lookup_impl_witness %I.loc12_19.1, @Interface, @Interface(constants.%i32) [symbolic = %Interface.lookup_impl_witness (constants.%Interface.lookup_impl_witness.a96)]
-// CHECK:STDOUT:   %impl.elem0.loc13_11.2: %i32 = impl_witness_access %Interface.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_11.2 (constants.%impl.elem0.e13)]
+// CHECK:STDOUT:   %I.as_type.loc13_11.2: type = facet_access_type %I.loc12_19.1 [symbolic = %I.as_type.loc13_11.2 (constants.%I.as_type.85e)]
+// CHECK:STDOUT:   %Interface.lookup_impl_witness: <witness> = lookup_impl_witness %I.loc12_19.1, @Interface, @Interface(constants.%i32) [symbolic = %Interface.lookup_impl_witness (constants.%Interface.lookup_impl_witness.73f)]
+// CHECK:STDOUT:   %impl.elem0.loc13_11.2: %i32 = impl_witness_access %Interface.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc13_11.2 (constants.%impl.elem0.f4f)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> %i32 {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %I.ref: %Interface.type.981 = name_ref I, %I.loc12_19.2 [symbolic = %I.loc12_19.1 (constants.%I.d08)]
+// CHECK:STDOUT:     %I.ref: %Interface.type.bcd = name_ref I, %I.loc12_19.2 [symbolic = %I.loc12_19.1 (constants.%I.910)]
 // CHECK:STDOUT:     %.loc13_11.1: %Interface.assoc_type.aaa = specific_constant @X.%assoc0, @Interface(constants.%i32) [concrete = constants.%assoc0.69f]
 // CHECK:STDOUT:     %X.ref: %Interface.assoc_type.aaa = name_ref X, %.loc13_11.1 [concrete = constants.%assoc0.69f]
-// CHECK:STDOUT:     %I.as_type.loc13_11.1: type = facet_access_type %I.ref [symbolic = %I.as_type.loc13_11.2 (constants.%I.as_type.ee6)]
-// CHECK:STDOUT:     %.loc13_11.2: type = converted %I.ref, %I.as_type.loc13_11.1 [symbolic = %I.as_type.loc13_11.2 (constants.%I.as_type.ee6)]
-// CHECK:STDOUT:     %impl.elem0.loc13_11.1: %i32 = impl_witness_access constants.%Interface.lookup_impl_witness.a96, element0 [symbolic = %impl.elem0.loc13_11.2 (constants.%impl.elem0.e13)]
+// CHECK:STDOUT:     %I.as_type.loc13_11.1: type = facet_access_type %I.ref [symbolic = %I.as_type.loc13_11.2 (constants.%I.as_type.85e)]
+// CHECK:STDOUT:     %.loc13_11.2: type = converted %I.ref, %I.as_type.loc13_11.1 [symbolic = %I.as_type.loc13_11.2 (constants.%I.as_type.85e)]
+// CHECK:STDOUT:     %impl.elem0.loc13_11.1: %i32 = impl_witness_access constants.%Interface.lookup_impl_witness.73f, element0 [symbolic = %impl.elem0.loc13_11.2 (constants.%impl.elem0.f4f)]
 // CHECK:STDOUT:     return %impl.elem0.loc13_11.1
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
@@ -240,26 +240,26 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %T.loc4_21.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.d32
-// CHECK:STDOUT:   %Self.2 => constants.%Self.a5f
+// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.1a8
+// CHECK:STDOUT:   %Self.2 => constants.%Self.c05
 // CHECK:STDOUT:   %Interface.assoc_type => constants.%Interface.assoc_type.0d9
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.dbe
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%T, constants.%Self.a5f) {
+// CHECK:STDOUT: specific @X(constants.%T, constants.%Self.c05) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %require_complete => constants.%require_complete.4ae
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AccessGeneric(constants.%T, constants.%I.a5f) {
+// CHECK:STDOUT: specific @AccessGeneric(constants.%T, constants.%I.c05) {
 // CHECK:STDOUT:   %T.loc8_18.1 => constants.%T
-// CHECK:STDOUT:   %Interface.type.loc8_43.1 => constants.%Interface.type.d32
-// CHECK:STDOUT:   %I.loc8_28.1 => constants.%I.a5f
-// CHECK:STDOUT:   %pattern_type.loc8_28 => constants.%pattern_type.f17
+// CHECK:STDOUT:   %Interface.type.loc8_43.1 => constants.%Interface.type.1a8
+// CHECK:STDOUT:   %I.loc8_28.1 => constants.%I.c05
+// CHECK:STDOUT:   %pattern_type.loc8_28 => constants.%pattern_type.eaa
 // CHECK:STDOUT:   %pattern_type.loc8_46 => constants.%pattern_type.7dcd0a.1
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%T, constants.%Interface.facet.e18) {
+// CHECK:STDOUT: specific @X(constants.%T, constants.%Interface.facet.b19) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %require_complete => constants.%require_complete.4ae
 // CHECK:STDOUT: }
@@ -268,17 +268,17 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %T.loc4_21.1 => constants.%i32
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.981
-// CHECK:STDOUT:   %Self.2 => constants.%Self.62a
+// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.bcd
+// CHECK:STDOUT:   %Self.2 => constants.%Self.e75
 // CHECK:STDOUT:   %Interface.assoc_type => constants.%Interface.assoc_type.aaa
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.69f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AccessConcrete(constants.%I.d08) {
-// CHECK:STDOUT:   %I.loc12_19.1 => constants.%I.d08
+// CHECK:STDOUT: specific @AccessConcrete(constants.%I.910) {
+// CHECK:STDOUT:   %I.loc12_19.1 => constants.%I.910
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%i32, constants.%Interface.facet.06c) {
+// CHECK:STDOUT: specific @X(constants.%i32, constants.%Interface.facet.c5c) {
 // CHECK:STDOUT:   %T => constants.%i32
 // CHECK:STDOUT:   %require_complete => constants.%complete_type.f8a
 // CHECK:STDOUT: }
@@ -291,28 +291,28 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
 // CHECK:STDOUT:   %Interface.type.e32: type = generic_interface_type @Interface [concrete]
 // CHECK:STDOUT:   %Interface.generic: %Interface.type.e32 = struct_value () [concrete]
-// CHECK:STDOUT:   %Interface.type.d32: type = facet_type <@Interface, @Interface(%T)> [symbolic]
-// CHECK:STDOUT:   %Self.a5f: %Interface.type.d32 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Interface.type.1a8: type = facet_type <@Interface, @Interface(%T)> [symbolic]
+// CHECK:STDOUT:   %Self.c05: %Interface.type.1a8 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %require_complete.4ae: <witness> = require_complete_type %T [symbolic]
 // CHECK:STDOUT:   %Interface.assoc_type.0d9: type = assoc_entity_type @Interface, @Interface(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.dbe: %Interface.assoc_type.0d9 = assoc_entity element0, @Interface.%X [symbolic]
-// CHECK:STDOUT:   %I.a5f: %Interface.type.d32 = bind_symbolic_name I, 1 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f17: type = pattern_type %Interface.type.d32 [symbolic]
+// CHECK:STDOUT:   %I.c05: %Interface.type.1a8 = bind_symbolic_name I, 1 [symbolic]
+// CHECK:STDOUT:   %pattern_type.eaa: type = pattern_type %Interface.type.1a8 [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %T [symbolic]
 // CHECK:STDOUT:   %AccessMissingGeneric.type: type = fn_type @AccessMissingGeneric [concrete]
 // CHECK:STDOUT:   %AccessMissingGeneric: %AccessMissingGeneric.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.6f3: <witness> = require_complete_type %Interface.type.d32 [symbolic]
+// CHECK:STDOUT:   %require_complete.376: <witness> = require_complete_type %Interface.type.1a8 [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %Interface.type.981: type = facet_type <@Interface, @Interface(%i32)> [concrete]
-// CHECK:STDOUT:   %I.d08: %Interface.type.981 = bind_symbolic_name I, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.875: type = pattern_type %Interface.type.981 [concrete]
+// CHECK:STDOUT:   %Interface.type.bcd: type = facet_type <@Interface, @Interface(%i32)> [concrete]
+// CHECK:STDOUT:   %I.910: %Interface.type.bcd = bind_symbolic_name I, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.1c1: type = pattern_type %Interface.type.bcd [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %AccessMissingConcrete.type: type = fn_type @AccessMissingConcrete [concrete]
 // CHECK:STDOUT:   %AccessMissingConcrete: %AccessMissingConcrete.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Self.62a: %Interface.type.981 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Self.e75: %Interface.type.bcd = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Interface.assoc_type.aaa: type = assoc_entity_type @Interface, @Interface(%i32) [concrete]
 // CHECK:STDOUT:   %assoc0.69f: %Interface.assoc_type.aaa = assoc_entity element0, @Interface.%X [concrete]
 // CHECK:STDOUT: }
@@ -342,38 +342,38 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AccessMissingGeneric.decl: %AccessMissingGeneric.type = fn_decl @AccessMissingGeneric [concrete = constants.%AccessMissingGeneric] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %I.patt: @AccessMissingGeneric.%pattern_type.loc8_35 (%pattern_type.f17) = symbolic_binding_pattern I, 1 [concrete]
+// CHECK:STDOUT:     %I.patt: @AccessMissingGeneric.%pattern_type.loc8_35 (%pattern_type.eaa) = symbolic_binding_pattern I, 1 [concrete]
 // CHECK:STDOUT:     %return.patt: @AccessMissingGeneric.%pattern_type.loc8_53 (%pattern_type.7dc) = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: @AccessMissingGeneric.%pattern_type.loc8_53 (%pattern_type.7dc) = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %T.ref.loc8_56: type = name_ref T, %T.loc8_25.2 [symbolic = %T.loc8_25.1 (constants.%T)]
 // CHECK:STDOUT:     %.Self.1: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:     %T.loc8_25.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_25.1 (constants.%T)]
-// CHECK:STDOUT:     %.loc8: type = splice_block %Interface.type.loc8_50.2 [symbolic = %Interface.type.loc8_50.1 (constants.%Interface.type.d32)] {
+// CHECK:STDOUT:     %.loc8: type = splice_block %Interface.type.loc8_50.2 [symbolic = %Interface.type.loc8_50.1 (constants.%Interface.type.1a8)] {
 // CHECK:STDOUT:       %.Self.2: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Interface.ref: %Interface.type.e32 = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.generic]
 // CHECK:STDOUT:       %T.ref.loc8_49: type = name_ref T, %T.loc8_25.2 [symbolic = %T.loc8_25.1 (constants.%T)]
-// CHECK:STDOUT:       %Interface.type.loc8_50.2: type = facet_type <@Interface, @Interface(constants.%T)> [symbolic = %Interface.type.loc8_50.1 (constants.%Interface.type.d32)]
+// CHECK:STDOUT:       %Interface.type.loc8_50.2: type = facet_type <@Interface, @Interface(constants.%T)> [symbolic = %Interface.type.loc8_50.1 (constants.%Interface.type.1a8)]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %I.loc8_35.2: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.d32) = bind_symbolic_name I, 1 [symbolic = %I.loc8_35.1 (constants.%I.a5f)]
+// CHECK:STDOUT:     %I.loc8_35.2: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.1a8) = bind_symbolic_name I, 1 [symbolic = %I.loc8_35.1 (constants.%I.c05)]
 // CHECK:STDOUT:     %return.param: ref @AccessMissingGeneric.%T.loc8_25.1 (%T) = out_param call_param0
 // CHECK:STDOUT:     %return: ref @AccessMissingGeneric.%T.loc8_25.1 (%T) = return_slot %return.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AccessMissingConcrete.decl: %AccessMissingConcrete.type = fn_decl @AccessMissingConcrete [concrete = constants.%AccessMissingConcrete] {
-// CHECK:STDOUT:     %I.patt: %pattern_type.875 = symbolic_binding_pattern I, 0 [concrete]
+// CHECK:STDOUT:     %I.patt: %pattern_type.1c1 = symbolic_binding_pattern I, 0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
 // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %int_32.loc16_49: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc16_49: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %.loc16: type = splice_block %Interface.type [concrete = constants.%Interface.type.981] {
+// CHECK:STDOUT:     %.loc16: type = splice_block %Interface.type [concrete = constants.%Interface.type.bcd] {
 // CHECK:STDOUT:       %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
 // CHECK:STDOUT:       %Interface.ref: %Interface.type.e32 = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.generic]
 // CHECK:STDOUT:       %int_32.loc16_40: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32.loc16_40: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:       %Interface.type: type = facet_type <@Interface, @Interface(constants.%i32)> [concrete = constants.%Interface.type.981]
+// CHECK:STDOUT:       %Interface.type: type = facet_type <@Interface, @Interface(constants.%i32)> [concrete = constants.%Interface.type.bcd]
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %I.loc16_26.2: %Interface.type.981 = bind_symbolic_name I, 0 [symbolic = %I.loc16_26.1 (constants.%I.d08)]
+// CHECK:STDOUT:     %I.loc16_26.2: %Interface.type.bcd = bind_symbolic_name I, 0 [symbolic = %I.loc16_26.1 (constants.%I.910)]
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param0
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
@@ -383,13 +383,13 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %T.loc4_21.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc4_21.1 (constants.%T)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface, @Interface(%T.loc4_21.1)> [symbolic = %Interface.type (constants.%Interface.type.d32)]
-// CHECK:STDOUT:   %Self.2: @Interface.%Interface.type (%Interface.type.d32) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a5f)]
+// CHECK:STDOUT:   %Interface.type: type = facet_type <@Interface, @Interface(%T.loc4_21.1)> [symbolic = %Interface.type (constants.%Interface.type.1a8)]
+// CHECK:STDOUT:   %Self.2: @Interface.%Interface.type (%Interface.type.1a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c05)]
 // CHECK:STDOUT:   %Interface.assoc_type: type = assoc_entity_type @Interface, @Interface(%T.loc4_21.1) [symbolic = %Interface.assoc_type (constants.%Interface.assoc_type.0d9)]
 // CHECK:STDOUT:   %assoc0: @Interface.%Interface.assoc_type (%Interface.assoc_type.0d9) = assoc_entity element0, %X [symbolic = %assoc0 (constants.%assoc0.dbe)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Interface.%Interface.type (%Interface.type.d32) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a5f)]
+// CHECK:STDOUT:     %Self.1: @Interface.%Interface.type (%Interface.type.1a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c05)]
 // CHECK:STDOUT:     %X: @X.%T (%T) = assoc_const_decl @X [concrete] {
 // CHECK:STDOUT:       %assoc0: @Interface.%Interface.assoc_type (%Interface.assoc_type.0d9) = assoc_entity element0, @Interface.%X [symbolic = @Interface.%assoc0 (constants.%assoc0.dbe)]
 // CHECK:STDOUT:     }
@@ -403,39 +403,39 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic assoc_const @X(@Interface.%T.loc4_21.2: type, @Interface.%Self.1: @Interface.%Interface.type (%Interface.type.d32)) {
+// CHECK:STDOUT: generic assoc_const @X(@Interface.%T.loc4_21.2: type, @Interface.%Self.1: @Interface.%Interface.type (%Interface.type.1a8)) {
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
 // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %T [symbolic = %require_complete (constants.%require_complete.4ae)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   assoc_const X:! @X.%T (%T);
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AccessMissingGeneric(%T.loc8_25.2: type, %I.loc8_35.2: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.d32)) {
+// CHECK:STDOUT: generic fn @AccessMissingGeneric(%T.loc8_25.2: type, %I.loc8_35.2: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.1a8)) {
 // CHECK:STDOUT:   %T.loc8_25.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_25.1 (constants.%T)]
-// CHECK:STDOUT:   %Interface.type.loc8_50.1: type = facet_type <@Interface, @Interface(%T.loc8_25.1)> [symbolic = %Interface.type.loc8_50.1 (constants.%Interface.type.d32)]
-// CHECK:STDOUT:   %I.loc8_35.1: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.d32) = bind_symbolic_name I, 1 [symbolic = %I.loc8_35.1 (constants.%I.a5f)]
-// CHECK:STDOUT:   %pattern_type.loc8_35: type = pattern_type %Interface.type.loc8_50.1 [symbolic = %pattern_type.loc8_35 (constants.%pattern_type.f17)]
+// CHECK:STDOUT:   %Interface.type.loc8_50.1: type = facet_type <@Interface, @Interface(%T.loc8_25.1)> [symbolic = %Interface.type.loc8_50.1 (constants.%Interface.type.1a8)]
+// CHECK:STDOUT:   %I.loc8_35.1: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.1a8) = bind_symbolic_name I, 1 [symbolic = %I.loc8_35.1 (constants.%I.c05)]
+// CHECK:STDOUT:   %pattern_type.loc8_35: type = pattern_type %Interface.type.loc8_50.1 [symbolic = %pattern_type.loc8_35 (constants.%pattern_type.eaa)]
 // CHECK:STDOUT:   %pattern_type.loc8_53: type = pattern_type %T.loc8_25.1 [symbolic = %pattern_type.loc8_53 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Interface.type.loc8_50.1 [symbolic = %require_complete (constants.%require_complete.6f3)]
+// CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Interface.type.loc8_50.1 [symbolic = %require_complete (constants.%require_complete.376)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> @AccessMissingGeneric.%T.loc8_25.1 (%T) {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %I.ref: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.d32) = name_ref I, %I.loc8_35.2 [symbolic = %I.loc8_35.1 (constants.%I.a5f)]
+// CHECK:STDOUT:     %I.ref: @AccessMissingGeneric.%Interface.type.loc8_50.1 (%Interface.type.1a8) = name_ref I, %I.loc8_35.2 [symbolic = %I.loc8_35.1 (constants.%I.c05)]
 // CHECK:STDOUT:     %nonesuch.ref: <error> = name_ref nonesuch, <error> [concrete = <error>]
 // CHECK:STDOUT:     return <error>
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @AccessMissingConcrete(%I.loc16_26.2: %Interface.type.981) {
-// CHECK:STDOUT:   %I.loc16_26.1: %Interface.type.981 = bind_symbolic_name I, 0 [symbolic = %I.loc16_26.1 (constants.%I.d08)]
+// CHECK:STDOUT: generic fn @AccessMissingConcrete(%I.loc16_26.2: %Interface.type.bcd) {
+// CHECK:STDOUT:   %I.loc16_26.1: %Interface.type.bcd = bind_symbolic_name I, 0 [symbolic = %I.loc16_26.1 (constants.%I.910)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> %i32 {
 // CHECK:STDOUT:   !entry:
-// CHECK:STDOUT:     %I.ref: %Interface.type.981 = name_ref I, %I.loc16_26.2 [symbolic = %I.loc16_26.1 (constants.%I.d08)]
+// CHECK:STDOUT:     %I.ref: %Interface.type.bcd = name_ref I, %I.loc16_26.2 [symbolic = %I.loc16_26.1 (constants.%I.910)]
 // CHECK:STDOUT:     %nonesuch.ref: <error> = name_ref nonesuch, <error> [concrete = <error>]
 // CHECK:STDOUT:     return <error>
 // CHECK:STDOUT:   }
@@ -445,22 +445,22 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %T.loc4_21.1 => constants.%T
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.d32
-// CHECK:STDOUT:   %Self.2 => constants.%Self.a5f
+// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.1a8
+// CHECK:STDOUT:   %Self.2 => constants.%Self.c05
 // CHECK:STDOUT:   %Interface.assoc_type => constants.%Interface.assoc_type.0d9
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.dbe
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @X(constants.%T, constants.%Self.a5f) {
+// CHECK:STDOUT: specific @X(constants.%T, constants.%Self.c05) {
 // CHECK:STDOUT:   %T => constants.%T
 // CHECK:STDOUT:   %require_complete => constants.%require_complete.4ae
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AccessMissingGeneric(constants.%T, constants.%I.a5f) {
+// CHECK:STDOUT: specific @AccessMissingGeneric(constants.%T, constants.%I.c05) {
 // CHECK:STDOUT:   %T.loc8_25.1 => constants.%T
-// CHECK:STDOUT:   %Interface.type.loc8_50.1 => constants.%Interface.type.d32
-// CHECK:STDOUT:   %I.loc8_35.1 => constants.%I.a5f
-// CHECK:STDOUT:   %pattern_type.loc8_35 => constants.%pattern_type.f17
+// CHECK:STDOUT:   %Interface.type.loc8_50.1 => constants.%Interface.type.1a8
+// CHECK:STDOUT:   %I.loc8_35.1 => constants.%I.c05
+// CHECK:STDOUT:   %pattern_type.loc8_35 => constants.%pattern_type.eaa
 // CHECK:STDOUT:   %pattern_type.loc8_53 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -468,13 +468,13 @@ fn AccessMissingConcrete(I:! Interface(i32)) -> i32 {
 // CHECK:STDOUT:   %T.loc4_21.1 => constants.%i32
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.981
-// CHECK:STDOUT:   %Self.2 => constants.%Self.62a
+// CHECK:STDOUT:   %Interface.type => constants.%Interface.type.bcd
+// CHECK:STDOUT:   %Self.2 => constants.%Self.e75
 // CHECK:STDOUT:   %Interface.assoc_type => constants.%Interface.assoc_type.aaa
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.69f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @AccessMissingConcrete(constants.%I.d08) {
-// CHECK:STDOUT:   %I.loc16_26.1 => constants.%I.d08
+// CHECK:STDOUT: specific @AccessMissingConcrete(constants.%I.910) {
+// CHECK:STDOUT:   %I.loc16_26.1 => constants.%I.910
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interface/syntactic_merge.carbon b/toolchain/check/testdata/interface/syntactic_merge.carbon
index d04b4c7368cb..5b6f0676d115 100644
--- a/toolchain/check/testdata/interface/syntactic_merge.carbon
+++ b/toolchain/check/testdata/interface/syntactic_merge.carbon
@@ -201,12 +201,12 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %Foo.type.538: type = generic_interface_type @Foo [concrete]
 // CHECK:STDOUT:   %Foo.generic: %Foo.type.538 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo, @Foo(%a)> [symbolic]
-// CHECK:STDOUT:   %Self.a71: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo, @Foo(%a)> [symbolic]
+// CHECK:STDOUT:   %Self.750: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Bar.type.982: type = generic_interface_type @Bar [concrete]
 // CHECK:STDOUT:   %Bar.generic: %Bar.type.982 = struct_value () [concrete]
-// CHECK:STDOUT:   %Bar.type.6a9: type = facet_type <@Bar, @Bar(%a)> [symbolic]
-// CHECK:STDOUT:   %Self.cec: %Bar.type.6a9 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Bar.type.7a8: type = facet_type <@Bar, @Bar(%a)> [symbolic]
+// CHECK:STDOUT:   %Self.4e3: %Bar.type.7a8 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -261,11 +261,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc7_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc7_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo, @Foo(%a.loc7_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a71)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo, @Foo(%a.loc7_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.750)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a71)]
+// CHECK:STDOUT:     %Self.1: @Foo.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.750)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -277,11 +277,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc10_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc10_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Bar.type: type = facet_type <@Bar, @Bar(%a.loc10_15.1)> [symbolic = %Bar.type (constants.%Bar.type.6a9)]
-// CHECK:STDOUT:   %Self.2: @Bar.%Bar.type (%Bar.type.6a9) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.cec)]
+// CHECK:STDOUT:   %Bar.type: type = facet_type <@Bar, @Bar(%a.loc10_15.1)> [symbolic = %Bar.type (constants.%Bar.type.7a8)]
+// CHECK:STDOUT:   %Self.2: @Bar.%Bar.type (%Bar.type.7a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.4e3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Bar.%Bar.type (%Bar.type.6a9) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.cec)]
+// CHECK:STDOUT:     %Self.1: @Bar.%Bar.type (%Bar.type.7a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.4e3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -316,8 +316,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %Foo.type.538: type = generic_interface_type @Foo [concrete]
 // CHECK:STDOUT:   %Foo.generic: %Foo.type.538 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo, @Foo(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo, @Foo(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -350,11 +350,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc6_21.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc6_21.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo, @Foo(%a.loc6_21.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo, @Foo(%a.loc6_21.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -387,8 +387,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %Foo.generic.ec3175.1: %Foo.type.5380b8.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc14 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo.loc14, @Foo.loc14(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo.loc14, @Foo.loc14(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -427,11 +427,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc14_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc14_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc14, @Foo.loc14(%a.loc14_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc14.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc14, @Foo.loc14(%a.loc14_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc14.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc14.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc14.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -466,8 +466,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %Foo.type.538: type = generic_interface_type @Foo [concrete]
 // CHECK:STDOUT:   %Foo.generic: %Foo.type.538 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo, @Foo(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo, @Foo(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -500,11 +500,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc6_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc6_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo, @Foo(%a.loc6_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo, @Foo(%a.loc6_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -610,14 +610,14 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %Foo.generic.ec3175.1: %Foo.type.5380b8.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc12 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo.loc12, @Foo.loc12(%a)> [symbolic]
-// CHECK:STDOUT:   %Self.a71: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo.loc12, @Foo.loc12(%a)> [symbolic]
+// CHECK:STDOUT:   %Self.750: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Bar.type.982aac.1: type = generic_interface_type @Bar.1 [concrete]
 // CHECK:STDOUT:   %Bar.generic.4bda5e.1: %Bar.type.982aac.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Bar.type.982aac.2: type = generic_interface_type @Bar.loc21 [concrete]
 // CHECK:STDOUT:   %Bar.generic.4bda5e.2: %Bar.type.982aac.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Bar.type.6a9: type = facet_type <@Bar.loc21, @Bar.loc21(%a)> [symbolic]
-// CHECK:STDOUT:   %Self.cec: %Bar.type.6a9 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Bar.type.7a8: type = facet_type <@Bar.loc21, @Bar.loc21(%a)> [symbolic]
+// CHECK:STDOUT:   %Self.4e3: %Bar.type.7a8 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -670,11 +670,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc12_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc12_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc12, @Foo.loc12(%a.loc12_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc12.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a71)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc12, @Foo.loc12(%a.loc12_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc12.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.750)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc12.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.a71)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc12.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.750)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -692,11 +692,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc21_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc21_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Bar.type: type = facet_type <@Bar.loc21, @Bar.loc21(%a.loc21_15.1)> [symbolic = %Bar.type (constants.%Bar.type.6a9)]
-// CHECK:STDOUT:   %Self.2: @Bar.loc21.%Bar.type (%Bar.type.6a9) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.cec)]
+// CHECK:STDOUT:   %Bar.type: type = facet_type <@Bar.loc21, @Bar.loc21(%a.loc21_15.1)> [symbolic = %Bar.type (constants.%Bar.type.7a8)]
+// CHECK:STDOUT:   %Self.2: @Bar.loc21.%Bar.type (%Bar.type.7a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.4e3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Bar.loc21.%Bar.type (%Bar.type.6a9) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.cec)]
+// CHECK:STDOUT:     %Self.1: @Bar.loc21.%Bar.type (%Bar.type.7a8) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.4e3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -741,8 +741,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %b: %C = bind_symbolic_name b, 0 [symbolic]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc15 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo.loc15, @Foo.loc15(%b)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo.loc15, @Foo.loc15(%b)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -784,11 +784,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %b.loc15_15.1: %C = bind_symbolic_name b, 0 [symbolic = %b.loc15_15.1 (constants.%b)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc15, @Foo.loc15(%b.loc15_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc15.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc15, @Foo.loc15(%b.loc15_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc15.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc15.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc15.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -825,8 +825,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %Foo.generic.ec3175.1: %Foo.type.5380b8.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc15 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo.loc15, @Foo.loc15(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo.loc15, @Foo.loc15(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -868,11 +868,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc15_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc15_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc15, @Foo.loc15(%a.loc15_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc15.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc15, @Foo.loc15(%a.loc15_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc15.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc15.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc15.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -909,8 +909,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %Foo.generic.ec3175.1: %Foo.type.5380b8.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc15 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo.loc15, @Foo.loc15(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo.loc15, @Foo.loc15(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -952,11 +952,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc15_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc15_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc15, @Foo.loc15(%a.loc15_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc15.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc15, @Foo.loc15(%a.loc15_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc15.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc15.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc15.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -1041,8 +1041,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %Foo.generic.ec3175.1: %Foo.type.5380b8.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc17 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.7d0: type = facet_type <@Foo.loc17, @Foo.loc17(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.7d0 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.c0b: type = facet_type <@Foo.loc17, @Foo.loc17(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.c0b = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1084,11 +1084,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc17_15.1: %C = bind_symbolic_name a, 0 [symbolic = %a.loc17_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc17, @Foo.loc17(%a.loc17_15.1)> [symbolic = %Foo.type (constants.%Foo.type.7d0)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc17.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc17, @Foo.loc17(%a.loc17_15.1)> [symbolic = %Foo.type (constants.%Foo.type.c0b)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc17.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc17.%Foo.type (%Foo.type.7d0) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc17.%Foo.type (%Foo.type.c0b) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -1125,8 +1125,8 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %Foo.generic.ec3175.1: %Foo.type.5380b8.1 = struct_value () [concrete]
 // CHECK:STDOUT:   %Foo.type.5380b8.2: type = generic_interface_type @Foo.loc18 [concrete]
 // CHECK:STDOUT:   %Foo.generic.ec3175.2: %Foo.type.5380b8.2 = struct_value () [concrete]
-// CHECK:STDOUT:   %Foo.type.924: type = facet_type <@Foo.loc18, @Foo.loc18(%a)> [symbolic]
-// CHECK:STDOUT:   %Self: %Foo.type.924 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %Foo.type.a1a: type = facet_type <@Foo.loc18, @Foo.loc18(%a)> [symbolic]
+// CHECK:STDOUT:   %Self: %Foo.type.a1a = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1168,11 +1168,11 @@ interface Foo(a:! const (const C)) {}
 // CHECK:STDOUT:   %a.loc18_15.1: %const = bind_symbolic_name a, 0 [symbolic = %a.loc18_15.1 (constants.%a)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc18, @Foo.loc18(%a.loc18_15.1)> [symbolic = %Foo.type (constants.%Foo.type.924)]
-// CHECK:STDOUT:   %Self.2: @Foo.loc18.%Foo.type (%Foo.type.924) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %Foo.type: type = facet_type <@Foo.loc18, @Foo.loc18(%a.loc18_15.1)> [symbolic = %Foo.type (constants.%Foo.type.a1a)]
+// CHECK:STDOUT:   %Self.2: @Foo.loc18.%Foo.type (%Foo.type.a1a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @Foo.loc18.%Foo.type (%Foo.type.924) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @Foo.loc18.%Foo.type (%Foo.type.a1a) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/interface/todo_define_not_default.carbon b/toolchain/check/testdata/interface/todo_define_not_default.carbon
index b3830ee15bdb..6598b217e6d8 100644
--- a/toolchain/check/testdata/interface/todo_define_not_default.carbon
+++ b/toolchain/check/testdata/interface/todo_define_not_default.carbon
@@ -27,7 +27,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.ce4: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
@@ -47,18 +47,18 @@ interface I {
 // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [concrete]
 // CHECK:STDOUT: }
@@ -72,8 +72,8 @@ interface I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -86,7 +86,7 @@ interface I {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I {
-// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {} {}
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0.82e]
 // CHECK:STDOUT:   %I.G.decl: %I.G.type = fn_decl @I.G [concrete = constants.%I.G] {
@@ -127,7 +127,7 @@ interface I {
 // CHECK:STDOUT:   %N: %i32 = assoc_const_decl @N [concrete] {
 // CHECK:STDOUT:     %assoc3: %I.assoc_type = assoc_entity element3, @I.%N [concrete = constants.%assoc3]
 // CHECK:STDOUT:     %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:     %bound_method.loc23_19.1: <bound method> = bound_method %int_42, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:     %bound_method.loc23_19.2: <bound method> = bound_method %int_42, %specific_fn [concrete = constants.%bound_method]
@@ -172,11 +172,11 @@ interface I {
 // CHECK:STDOUT:   fn(%a.param: %i32, %b.param: %i32) -> %i32 = "int.sadd";
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.F(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.F(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.G(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.G(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @T(constants.%Self.826) {}
+// CHECK:STDOUT: specific @T(constants.%Self.ce4) {}
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @N(constants.%Self.826) {}
+// CHECK:STDOUT: specific @N(constants.%Self.ce4) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/interop/cpp/class/constructor.carbon b/toolchain/check/testdata/interop/cpp/class/constructor.carbon
index 62a47631c014..530afb8b3d29 100644
--- a/toolchain/check/testdata/interop/cpp/class/constructor.carbon
+++ b/toolchain/check/testdata/interop/cpp/class/constructor.carbon
@@ -224,8 +224,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.d9e: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %C__carbon_thunk.type: type = fn_type @C__carbon_thunk [concrete]
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -265,7 +265,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_26.3: ref %C = temporary %.loc8_26.1, %.loc8_26.2
 // CHECK:STDOUT:   %.loc8_26.4: %C = bind_value %.loc8_26.3
 // CHECK:STDOUT:   %c: %C = bind_name c, %.loc8_26.4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_26.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_26.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_26.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_26.2: %ptr.d9e = addr_of %.loc8_26.3
@@ -288,25 +288,25 @@ fn F() {
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_123.fff: Core.IntLiteral = int_value 123 [concrete]
 // CHECK:STDOUT:   %int_456.010: Core.IntLiteral = int_value 456 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2cc: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.3aa: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.88d: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.6ab: <bound method> = bound_method %int_123.fff, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_123.f7f: %i32 = int_value 123 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.3bd: <bound method> = bound_method %int_456.010, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.6b8: <bound method> = bound_method %int_456.010, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.5f2: <bound method> = bound_method %int_456.010, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.098: <bound method> = bound_method %int_456.010, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_456.d17: %i32 = int_value 456 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -325,8 +325,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -340,17 +340,17 @@ fn F() {
 // CHECK:STDOUT:   %int_123: Core.IntLiteral = int_value 123 [concrete = constants.%int_123.fff]
 // CHECK:STDOUT:   %int_456: Core.IntLiteral = int_value 456 [concrete = constants.%int_456.010]
 // CHECK:STDOUT:   %.loc8_34.1: ref %C = temporary_storage
-// CHECK:STDOUT:   %impl.elem0.loc8_26: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_26.1: <bound method> = bound_method %int_123, %impl.elem0.loc8_26 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2cc]
+// CHECK:STDOUT:   %impl.elem0.loc8_26: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_26.1: <bound method> = bound_method %int_123, %impl.elem0.loc8_26 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.88d]
 // CHECK:STDOUT:   %specific_fn.loc8_26: <specific function> = specific_function %impl.elem0.loc8_26, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_26.2: <bound method> = bound_method %int_123, %specific_fn.loc8_26 [concrete = constants.%bound_method.3aa]
+// CHECK:STDOUT:   %bound_method.loc8_26.2: <bound method> = bound_method %int_123, %specific_fn.loc8_26 [concrete = constants.%bound_method.6ab]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_26: init %i32 = call %bound_method.loc8_26.2(%int_123) [concrete = constants.%int_123.f7f]
 // CHECK:STDOUT:   %.loc8_26.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_26 [concrete = constants.%int_123.f7f]
 // CHECK:STDOUT:   %.loc8_26.2: %i32 = converted %int_123, %.loc8_26.1 [concrete = constants.%int_123.f7f]
-// CHECK:STDOUT:   %impl.elem0.loc8_31: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_31.1: <bound method> = bound_method %int_456, %impl.elem0.loc8_31 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.3bd]
+// CHECK:STDOUT:   %impl.elem0.loc8_31: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_31.1: <bound method> = bound_method %int_456, %impl.elem0.loc8_31 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.5f2]
 // CHECK:STDOUT:   %specific_fn.loc8_31: <specific function> = specific_function %impl.elem0.loc8_31, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_31.2: <bound method> = bound_method %int_456, %specific_fn.loc8_31 [concrete = constants.%bound_method.6b8]
+// CHECK:STDOUT:   %bound_method.loc8_31.2: <bound method> = bound_method %int_456, %specific_fn.loc8_31 [concrete = constants.%bound_method.098]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_31: init %i32 = call %bound_method.loc8_31.2(%int_456) [concrete = constants.%int_456.d17]
 // CHECK:STDOUT:   %.loc8_31.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_31 [concrete = constants.%int_456.d17]
 // CHECK:STDOUT:   %.loc8_31.2: %i32 = converted %int_456, %.loc8_31.1 [concrete = constants.%int_456.d17]
@@ -364,7 +364,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_34.3: ref %C = temporary %.loc8_34.1, %.loc8_34.2
 // CHECK:STDOUT:   %.loc8_34.4: %C = bind_value %.loc8_34.3
 // CHECK:STDOUT:   %c: %C = bind_name c, %.loc8_34.4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_34.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_34.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_34: <bound method> = bound_method %.loc8_34.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_34.2: %ptr.d9e = addr_of %.loc8_34.3
@@ -433,25 +433,25 @@ fn F() {
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_8.b85: Core.IntLiteral = int_value 8 [concrete]
 // CHECK:STDOUT:   %int_9.988: Core.IntLiteral = int_value 9 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.e09: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.02d: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9fc: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.a12: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_8.98c: %i32 = int_value 8 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.cd3: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.da6: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_9.f88: %i32 = int_value 9 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -470,8 +470,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -485,17 +485,17 @@ fn F() {
 // CHECK:STDOUT:   %int_8.loc8: Core.IntLiteral = int_value 8 [concrete = constants.%int_8.b85]
 // CHECK:STDOUT:   %int_9: Core.IntLiteral = int_value 9 [concrete = constants.%int_9.988]
 // CHECK:STDOUT:   %.loc8_31.1: ref %C = temporary_storage
-// CHECK:STDOUT:   %impl.elem0.loc8_27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_27.1: <bound method> = bound_method %int_8.loc8, %impl.elem0.loc8_27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.e09]
+// CHECK:STDOUT:   %impl.elem0.loc8_27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_27.1: <bound method> = bound_method %int_8.loc8, %impl.elem0.loc8_27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9fc]
 // CHECK:STDOUT:   %specific_fn.loc8_27: <specific function> = specific_function %impl.elem0.loc8_27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_27.2: <bound method> = bound_method %int_8.loc8, %specific_fn.loc8_27 [concrete = constants.%bound_method.02d]
+// CHECK:STDOUT:   %bound_method.loc8_27.2: <bound method> = bound_method %int_8.loc8, %specific_fn.loc8_27 [concrete = constants.%bound_method.a12]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_27: init %i32 = call %bound_method.loc8_27.2(%int_8.loc8) [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc8_27.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_27 [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc8_27.2: %i32 = converted %int_8.loc8, %.loc8_27.1 [concrete = constants.%int_8.98c]
-// CHECK:STDOUT:   %impl.elem0.loc8_30: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_30.1: <bound method> = bound_method %int_9, %impl.elem0.loc8_30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2]
+// CHECK:STDOUT:   %impl.elem0.loc8_30: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_30.1: <bound method> = bound_method %int_9, %impl.elem0.loc8_30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025]
 // CHECK:STDOUT:   %specific_fn.loc8_30: <specific function> = specific_function %impl.elem0.loc8_30, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_30.2: <bound method> = bound_method %int_9, %specific_fn.loc8_30 [concrete = constants.%bound_method.cd3]
+// CHECK:STDOUT:   %bound_method.loc8_30.2: <bound method> = bound_method %int_9, %specific_fn.loc8_30 [concrete = constants.%bound_method.da6]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_30: init %i32 = call %bound_method.loc8_30.2(%int_9) [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %.loc8_30.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_30 [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %.loc8_30.2: %i32 = converted %int_9, %.loc8_30.1 [concrete = constants.%int_9.f88]
@@ -521,7 +521,7 @@ fn F() {
 // CHECK:STDOUT:     %C.ref.loc14_14: type = name_ref C, imports.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %c2: %C = bind_name c2, <error> [concrete = <error>]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_31.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_31.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_31: <bound method> = bound_method %.loc8_31.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_31.2: %ptr.d9e = addr_of %.loc8_31.3
@@ -543,34 +543,34 @@ fn F() {
 // CHECK:STDOUT:   %C__carbon_thunk.type: type = fn_type @C__carbon_thunk [concrete]
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_8.b85: Core.IntLiteral = int_value 8 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.02d: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.a12: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_8.98c: %i32 = int_value 8 [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.3a8: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.cf1: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -589,10 +589,10 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -605,10 +605,10 @@ fn F() {
 // CHECK:STDOUT:   %C.ref.loc8_24: %C.C.type = name_ref C, imports.%C.C.decl [concrete = constants.%C.C]
 // CHECK:STDOUT:   %int_8.loc8: Core.IntLiteral = int_value 8 [concrete = constants.%int_8.b85]
 // CHECK:STDOUT:   %.loc8_28.1: ref %C = temporary_storage
-// CHECK:STDOUT:   %impl.elem0.loc8: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc8: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_27.1: <bound method> = bound_method %int_8.loc8, %impl.elem0.loc8 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_27.2: <bound method> = bound_method %int_8.loc8, %specific_fn.loc8 [concrete = constants.%bound_method.02d]
+// CHECK:STDOUT:   %bound_method.loc8_27.2: <bound method> = bound_method %int_8.loc8, %specific_fn.loc8 [concrete = constants.%bound_method.a12]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc8_27.2(%int_8.loc8) [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc8_27.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc8_27.2: %i32 = converted %int_8.loc8, %.loc8_27.1 [concrete = constants.%int_8.98c]
@@ -628,10 +628,10 @@ fn F() {
 // CHECK:STDOUT:   %int_8.loc16: Core.IntLiteral = int_value 8 [concrete = constants.%int_8.b85]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc16: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0.loc16: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc16_21.1: <bound method> = bound_method %int_8.loc16, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %impl.elem0.loc16, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_21.2: <bound method> = bound_method %int_8.loc16, %specific_fn.loc16 [concrete = constants.%bound_method.3a8]
+// CHECK:STDOUT:   %bound_method.loc16_21.2: <bound method> = bound_method %int_8.loc16, %specific_fn.loc16 [concrete = constants.%bound_method.cf1]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call: init %i32 = call %bound_method.loc16_21.2(%int_8.loc16) [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc16_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc16_21.2: %i32 = converted %int_8.loc16, %.loc16_21.1 [concrete = constants.%int_8.98c]
@@ -641,7 +641,7 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %.loc16_21.3: %C = converted %.loc16_21.2, <error> [concrete = <error>]
 // CHECK:STDOUT:   %c2: %C = bind_name c2, <error> [concrete = <error>]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_28.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_28.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_28: <bound method> = bound_method %.loc8_28.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_28.2: %ptr.d9e = addr_of %.loc8_28.3
@@ -664,37 +664,37 @@ fn F() {
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_8.b85: Core.IntLiteral = int_value 8 [concrete]
 // CHECK:STDOUT:   %int_9.988: Core.IntLiteral = int_value 9 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.e09: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.02d: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9fc: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.a12: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_8.98c: %i32 = int_value 8 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.cd3: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.da6: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_9.f88: %i32 = int_value 9 [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.3a8: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.cf1: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -713,10 +713,10 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -730,17 +730,17 @@ fn F() {
 // CHECK:STDOUT:   %int_8.loc8: Core.IntLiteral = int_value 8 [concrete = constants.%int_8.b85]
 // CHECK:STDOUT:   %int_9: Core.IntLiteral = int_value 9 [concrete = constants.%int_9.988]
 // CHECK:STDOUT:   %.loc8_31.1: ref %C = temporary_storage
-// CHECK:STDOUT:   %impl.elem0.loc8_27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_27.1: <bound method> = bound_method %int_8.loc8, %impl.elem0.loc8_27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.e09]
+// CHECK:STDOUT:   %impl.elem0.loc8_27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_27.1: <bound method> = bound_method %int_8.loc8, %impl.elem0.loc8_27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9fc]
 // CHECK:STDOUT:   %specific_fn.loc8_27: <specific function> = specific_function %impl.elem0.loc8_27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_27.2: <bound method> = bound_method %int_8.loc8, %specific_fn.loc8_27 [concrete = constants.%bound_method.02d]
+// CHECK:STDOUT:   %bound_method.loc8_27.2: <bound method> = bound_method %int_8.loc8, %specific_fn.loc8_27 [concrete = constants.%bound_method.a12]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_27: init %i32 = call %bound_method.loc8_27.2(%int_8.loc8) [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc8_27.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_27 [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc8_27.2: %i32 = converted %int_8.loc8, %.loc8_27.1 [concrete = constants.%int_8.98c]
-// CHECK:STDOUT:   %impl.elem0.loc8_30: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_30.1: <bound method> = bound_method %int_9, %impl.elem0.loc8_30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2]
+// CHECK:STDOUT:   %impl.elem0.loc8_30: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_30.1: <bound method> = bound_method %int_9, %impl.elem0.loc8_30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025]
 // CHECK:STDOUT:   %specific_fn.loc8_30: <specific function> = specific_function %impl.elem0.loc8_30, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_30.2: <bound method> = bound_method %int_9, %specific_fn.loc8_30 [concrete = constants.%bound_method.cd3]
+// CHECK:STDOUT:   %bound_method.loc8_30.2: <bound method> = bound_method %int_9, %specific_fn.loc8_30 [concrete = constants.%bound_method.da6]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_30: init %i32 = call %bound_method.loc8_30.2(%int_9) [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %.loc8_30.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_30 [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %.loc8_30.2: %i32 = converted %int_9, %.loc8_30.1 [concrete = constants.%int_9.f88]
@@ -772,10 +772,10 @@ fn F() {
 // CHECK:STDOUT:   %int_8.loc22: Core.IntLiteral = int_value 8 [concrete = constants.%int_8.b85]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc22_21.1: <bound method> = bound_method %int_8.loc22, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_21.2: <bound method> = bound_method %int_8.loc22, %specific_fn.loc22 [concrete = constants.%bound_method.3a8]
+// CHECK:STDOUT:   %bound_method.loc22_21.2: <bound method> = bound_method %int_8.loc22, %specific_fn.loc22 [concrete = constants.%bound_method.cf1]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call: init %i32 = call %bound_method.loc22_21.2(%int_8.loc22) [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc22_21.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_8.98c]
 // CHECK:STDOUT:   %.loc22_21.2: %i32 = converted %int_8.loc22, %.loc22_21.1 [concrete = constants.%int_8.98c]
@@ -785,7 +785,7 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %.loc22_21.3: %C = converted %.loc22_21.2, <error> [concrete = <error>]
 // CHECK:STDOUT:   %c3: %C = bind_name c3, <error> [concrete = <error>]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_31.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_31.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_31: <bound method> = bound_method %.loc8_31.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_31.2: %ptr.d9e = addr_of %.loc8_31.3
diff --git a/toolchain/check/testdata/interop/cpp/class/template.carbon b/toolchain/check/testdata/interop/cpp/class/template.carbon
index 2240017d2e7a..aa617b40364f 100644
--- a/toolchain/check/testdata/interop/cpp/class/template.carbon
+++ b/toolchain/check/testdata/interop/cpp/class/template.carbon
@@ -149,18 +149,18 @@ var y: Cpp.Xint.r#type = 0;
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %X.32d59e.2: type = class_type @X.2 [concrete]
@@ -173,8 +173,8 @@ var y: Cpp.Xint.r#type = 0;
 // CHECK:STDOUT:     import Cpp//...
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %X.decl.dec4cb.1: type = class_decl @X.1 [concrete = constants.%X.32d59e.1] {} {}
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %X.decl.dec4cb.2: type = class_decl @X.2 [concrete = constants.%X.32d59e.2] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -208,7 +208,7 @@ var y: Cpp.Xint.r#type = 0;
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0.loc15: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_1.1: <bound method> = bound_method %int_0.loc15, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc15: <specific function> = specific_function %impl.elem0.loc15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_1.2: <bound method> = bound_method %int_0.loc15, %specific_fn.loc15 [concrete = constants.%bound_method]
@@ -216,7 +216,7 @@ var y: Cpp.Xint.r#type = 0;
 // CHECK:STDOUT:   %.loc15: init %i32 = converted %int_0.loc15, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign file.%x.var, %.loc15
 // CHECK:STDOUT:   %int_0.loc21: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc21_1.1: <bound method> = bound_method %int_0.loc21, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc21: <specific function> = specific_function %impl.elem0.loc21, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc21_1.2: <bound method> = bound_method %int_0.loc21, %specific_fn.loc21 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/interop/cpp/enum/anonymous.carbon b/toolchain/check/testdata/interop/cpp/enum/anonymous.carbon
index e83102764ffb..c4c4ebc35dcd 100644
--- a/toolchain/check/testdata/interop/cpp/enum/anonymous.carbon
+++ b/toolchain/check/testdata/interop/cpp/enum/anonymous.carbon
@@ -63,12 +63,12 @@ fn G() {
 // CHECK:STDOUT:   %F__carbon_thunk.type.eda1ac.2: type = fn_type @F__carbon_thunk.2 [concrete]
 // CHECK:STDOUT:   %F__carbon_thunk.0cd6a8.2: %F__carbon_thunk.type.eda1ac.2 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.1d6: %.bb7 = int_value 1 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.8e9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%.bb7) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e52: %T.as.Destroy.impl.Op.type.8e9 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.d1b: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%.4f0) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.002: %T.as.Destroy.impl.Op.type.d1b = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.bf8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%.bb7) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.823: %T.as.Destroy.impl.Op.type.bf8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a23: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%.4f0) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8db: %T.as.Destroy.impl.Op.type.a23 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -145,17 +145,17 @@ fn G() {
 // CHECK:STDOUT:   %.loc10_20.2: ref %.bb7 = temporary %.loc10_20.1, %e.ref
 // CHECK:STDOUT:   %addr.loc10_22: %ptr.73d = addr_of %.loc10_20.2
 // CHECK:STDOUT:   %F__carbon_thunk.call.loc10: init %empty_tuple.type = call imports.%F__carbon_thunk.decl.e1b8ec.2(%addr.loc10_11.2, %addr.loc10_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_20: <bound method> = bound_method %.loc10_20.2, constants.%T.as.Destroy.impl.Op.e52
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_20: <bound method> = bound_method %.loc10_20.2, constants.%T.as.Destroy.impl.Op.823
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_20: <bound method> = bound_method %.loc10_20.2, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10_20: %ptr.73d = addr_of %.loc10_20.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10_20: init %empty_tuple.type = call %bound_method.loc10_20(%addr.loc10_20)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_11: <bound method> = bound_method %.loc10_11.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10_11: <bound method> = bound_method %.loc10_11.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10_11: <bound method> = bound_method %.loc10_11.3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc10_11.3: %ptr.d9e = addr_of %.loc10_11.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10_11: init %empty_tuple.type = call %bound_method.loc10_11(%addr.loc10_11.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.2, constants.%T.as.Destroy.impl.Op.002
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.2, constants.%T.as.Destroy.impl.Op.8db
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.2, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.793 = addr_of %.loc8_12.2
diff --git a/toolchain/check/testdata/interop/cpp/enum/convert.carbon b/toolchain/check/testdata/interop/cpp/enum/convert.carbon
index 186635091fd3..3caca32bdd5a 100644
--- a/toolchain/check/testdata/interop/cpp/enum/convert.carbon
+++ b/toolchain/check/testdata/interop/cpp/enum/convert.carbon
@@ -98,18 +98,18 @@ fn F() {
 // CHECK:STDOUT:   %int_0.320: %i16 = int_value 0 [concrete]
 // CHECK:STDOUT:   %pattern_type.ebf: type = pattern_type %Enum [concrete]
 // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.a0e: %i16 = int_value 42 [concrete]
 // CHECK:STDOUT:   %int_42.c3a: %Enum = int_value 42 [concrete]
@@ -127,8 +127,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Enum.decl: type = class_decl @Enum [concrete = constants.%Enum] {} {}
 // CHECK:STDOUT:   %int_0: %Enum = int_value 0 [concrete = constants.%int_0.420]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT:   %Other.decl: type = class_decl @Other [concrete = constants.%Other] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -159,7 +159,7 @@ fn F() {
 // CHECK:STDOUT:   %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
 // CHECK:STDOUT:   %int_16.loc9: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16.loc9: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc9_25.1: <bound method> = bound_method %int_42, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9_25.2: <bound method> = bound_method %int_42, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/interop/cpp/enum/copy.carbon b/toolchain/check/testdata/interop/cpp/enum/copy.carbon
index ff86b16b58c7..32ef1f097beb 100644
--- a/toolchain/check/testdata/interop/cpp/enum/copy.carbon
+++ b/toolchain/check/testdata/interop/cpp/enum/copy.carbon
@@ -38,8 +38,8 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type.ebf: type = pattern_type %Enum [concrete]
 // CHECK:STDOUT:   %int_0: %Enum = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1: %Enum = int_value 1 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.6f4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%Enum) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.911: %T.as.Destroy.impl.Op.type.6f4 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.664: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%Enum) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bbe: %T.as.Destroy.impl.Op.type.664 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.47b: type = ptr_type %Enum [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -78,7 +78,7 @@ fn F() {
 // CHECK:STDOUT:   %Enum.ref.loc10: type = name_ref Enum, imports.%Enum.decl [concrete = constants.%Enum]
 // CHECK:STDOUT:   %b.ref: %Enum = name_ref b, imports.%int_1 [concrete = constants.%int_1]
 // CHECK:STDOUT:   assign %a.ref.loc10, %b.ref
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.911
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.bbe
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.47b = addr_of %a.var
diff --git a/toolchain/check/testdata/interop/cpp/function/arithmetic_types_bridged.carbon b/toolchain/check/testdata/interop/cpp/function/arithmetic_types_bridged.carbon
index b09c5e673c72..6b717804b634 100644
--- a/toolchain/check/testdata/interop/cpp/function/arithmetic_types_bridged.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/arithmetic_types_bridged.carbon
@@ -694,8 +694,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.655: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8b7: %T.as.Destroy.impl.Op.type.655 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.19a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4f7: %T.as.Destroy.impl.Op.type.19a = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -724,7 +724,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_11.2: ref bool = temporary %.loc8_11.1, %true
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.bb2 = addr_of %.loc8_11.2
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_15)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.2, constants.%T.as.Destroy.impl.Op.8b7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.2, constants.%T.as.Destroy.impl.Op.4f7
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11: %ptr.bb2 = addr_of %.loc8_11.2
@@ -742,8 +742,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %false: bool = bool_literal false [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.655: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8b7: %T.as.Destroy.impl.Op.type.655 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.19a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4f7: %T.as.Destroy.impl.Op.type.19a = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -772,7 +772,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_11.2: ref bool = temporary %.loc8_11.1, %false
 // CHECK:STDOUT:   %addr.loc8_16: %ptr.bb2 = addr_of %.loc8_11.2
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_16)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.2, constants.%T.as.Destroy.impl.Op.8b7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.2, constants.%T.as.Destroy.impl.Op.4f7
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11: %ptr.bb2 = addr_of %.loc8_11.2
@@ -794,29 +794,29 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
-// CHECK:STDOUT:   %Negate.impl_witness.973: <witness> = impl_witness imports.%Negate.impl_witness_table.b22 [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.973) [concrete]
-// CHECK:STDOUT:   %.d3d: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Negate.impl_witness.2fb: <witness> = impl_witness imports.%Negate.impl_witness_table.1da [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.2fb) [concrete]
+// CHECK:STDOUT:   %.e9a: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.type: type = fn_type @Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op: %Core.IntLiteral.as.Negate.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.bound: <bound method> = bound_method %int_1, %Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %int_-1.638: Core.IntLiteral = int_value -1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.968: type = facet_type <@ImplicitAs, @ImplicitAs(%i8)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.ee6: type = facet_type <@ImplicitAs, @ImplicitAs(%i8)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.e79: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i8) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a2a: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e59: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.92b: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e59 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.74d: %ImplicitAs.type.968 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.a2a) [concrete]
-// CHECK:STDOUT:   %.58b: type = fn_type_with_self_type %ImplicitAs.Convert.type.e79, %ImplicitAs.facet.74d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_-1.638, %Core.IntLiteral.as.ImplicitAs.impl.Convert.92b [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.92b, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_8) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.f3c: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8ba: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.05d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8ba = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.037: %ImplicitAs.type.ee6 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.f3c) [concrete]
+// CHECK:STDOUT:   %.63d: type = fn_type_with_self_type %ImplicitAs.Convert.type.e79, %ImplicitAs.facet.037 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_-1.638, %Core.IntLiteral.as.ImplicitAs.impl.Convert.05d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.05d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_8) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_-1.638, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_-1.416: %i8 = int_value -1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.1c6: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_8) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.945: %Int.as.Destroy.impl.Op.type.1c6 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.5cb: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_8) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.d9e: %Int.as.Destroy.impl.Op.type.5cb = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -835,10 +835,10 @@ fn F() {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.import_ref.abd9 = import_ref Core//prelude/operators/arithmetic, loc111_50, unloaded
-// CHECK:STDOUT:   %Core.import_ref.5e6a: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc112_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
-// CHECK:STDOUT:   %Negate.impl_witness_table.b22 = impl_witness_table (%Core.import_ref.abd9, %Core.import_ref.5e6a), @Core.IntLiteral.as.Negate.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.037: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc112_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %Negate.impl_witness_table.1da = impl_witness_table (%Core.import_ref.abd9, %Core.import_ref.037), @Core.IntLiteral.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -846,10 +846,10 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
-// CHECK:STDOUT:   %impl.elem1: %.d3d = impl_witness_access constants.%Negate.impl_witness.973, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.e9a = impl_witness_access constants.%Negate.impl_witness.2fb, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op.bound]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.call: init Core.IntLiteral = call %bound_method.loc8_11.1(%int_1) [concrete = constants.%int_-1.638]
-// CHECK:STDOUT:   %impl.elem0: %.58b = impl_witness_access constants.%ImplicitAs.impl_witness.a2a, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.92b]
+// CHECK:STDOUT:   %impl.elem0: %.63d = impl_witness_access constants.%ImplicitAs.impl_witness.f3c, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.05d]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_8) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.3: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %specific_fn [concrete = constants.%bound_method]
@@ -862,7 +862,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_11.6: ref %i8 = temporary %.loc8_11.5, %.loc8_11.4
 // CHECK:STDOUT:   %addr.loc8_13: %ptr.5c1 = addr_of %.loc8_11.6
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_13)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.6, constants.%Int.as.Destroy.impl.Op.945
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.6, constants.%Int.as.Destroy.impl.Op.d9e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_11.4: <bound method> = bound_method %.loc8_11.6, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11: %ptr.5c1 = addr_of %.loc8_11.6
@@ -882,22 +882,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.431: type = facet_type <@ImplicitAs, @ImplicitAs(%u8)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.8ae: type = facet_type <@ImplicitAs, @ImplicitAs(%u8)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.951: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%u8) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.d1a: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.ddc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.bb8, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.c24: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed9 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.b4d: %ImplicitAs.type.431 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ddc) [concrete]
-// CHECK:STDOUT:   %.890: type = fn_type_with_self_type %ImplicitAs.Convert.type.951, %ImplicitAs.facet.b4d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.c24 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.c24, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_8) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.8f6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.038: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b63, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.d67: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_8) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f59: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.d67 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.fdb: %ImplicitAs.type.8ae = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.038) [concrete]
+// CHECK:STDOUT:   %.bc7: type = fn_type_with_self_type %ImplicitAs.Convert.type.951, %ImplicitAs.facet.fdb [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.f59 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.f59, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_8) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.e80: %u8 = int_value 1 [concrete]
-// CHECK:STDOUT:   %UInt.as.Destroy.impl.Op.type.a57: type = fn_type @UInt.as.Destroy.impl.Op, @UInt.as.Destroy.impl(%int_8) [concrete]
-// CHECK:STDOUT:   %UInt.as.Destroy.impl.Op.ad9: %UInt.as.Destroy.impl.Op.type.a57 = struct_value () [concrete]
+// CHECK:STDOUT:   %UInt.as.Destroy.impl.Op.type.225: type = fn_type @UInt.as.Destroy.impl.Op, @UInt.as.Destroy.impl(%int_8) [concrete]
+// CHECK:STDOUT:   %UInt.as.Destroy.impl.Op.cff: %UInt.as.Destroy.impl.Op.type.225 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -915,8 +915,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.c3d: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e) = import_ref Core//prelude/types/uint, loc21_40, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.d1a)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.bb8 = impl_witness_table (%Core.import_ref.c3d), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.104: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367) = import_ref Core//prelude/types/uint, loc21_40, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.8f6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b63 = impl_witness_table (%Core.import_ref.104), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -924,7 +924,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.890 = impl_witness_access constants.%ImplicitAs.impl_witness.ddc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.c24]
+// CHECK:STDOUT:   %impl.elem0: %.bc7 = impl_witness_access constants.%ImplicitAs.impl_witness.038, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f59]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_8) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -935,7 +935,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_11.4: ref %u8 = temporary %.loc8_11.3, %.loc8_11.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.3e8 = addr_of %.loc8_11.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_12)
-// CHECK:STDOUT:   %UInt.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.4, constants.%UInt.as.Destroy.impl.Op.ad9
+// CHECK:STDOUT:   %UInt.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.4, constants.%UInt.as.Destroy.impl.Op.cff
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_11.3: <bound method> = bound_method %.loc8_11.4, %UInt.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11: %ptr.3e8 = addr_of %.loc8_11.4
@@ -954,11 +954,11 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %.d16: Core.CharLiteral = char_value U+0058 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.715: type = facet_type <@ImplicitAs, @ImplicitAs(%Char)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.d99: type = facet_type <@ImplicitAs, @ImplicitAs(%Char)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.f57: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Char) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.b70: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.aed [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.715 = facet_value Core.CharLiteral, (%ImplicitAs.impl_witness.b70) [concrete]
-// CHECK:STDOUT:   %.a57: type = fn_type_with_self_type %ImplicitAs.Convert.type.f57, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ce4: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.97b [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.d99 = facet_value Core.CharLiteral, (%ImplicitAs.impl_witness.ce4) [concrete]
+// CHECK:STDOUT:   %.674: type = fn_type_with_self_type %ImplicitAs.Convert.type.f57, %ImplicitAs.facet [concrete]
 // CHECK:STDOUT:   %Core.CharLiteral.as.ImplicitAs.impl.Convert.type: type = fn_type @Core.CharLiteral.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %Core.CharLiteral.as.ImplicitAs.impl.Convert: %Core.CharLiteral.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.CharLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %.d16, %Core.CharLiteral.as.ImplicitAs.impl.Convert [concrete]
@@ -982,8 +982,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.0f8: %Core.CharLiteral.as.ImplicitAs.impl.Convert.type = import_ref Core//prelude/types/char, loc18_36, loaded [concrete = constants.%Core.CharLiteral.as.ImplicitAs.impl.Convert]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.aed = impl_witness_table (%Core.import_ref.0f8), @Core.CharLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.adf: %Core.CharLiteral.as.ImplicitAs.impl.Convert.type = import_ref Core//prelude/types/char, loc18_36, loaded [concrete = constants.%Core.CharLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.97b = impl_witness_table (%Core.import_ref.adf), @Core.CharLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -991,7 +991,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %.loc8_11.1: Core.CharLiteral = char_value U+0058 [concrete = constants.%.d16]
-// CHECK:STDOUT:   %impl.elem0: %.a57 = impl_witness_access constants.%ImplicitAs.impl_witness.b70, element0 [concrete = constants.%Core.CharLiteral.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %impl.elem0: %.674 = impl_witness_access constants.%ImplicitAs.impl_witness.ce4, element0 [concrete = constants.%Core.CharLiteral.as.ImplicitAs.impl.Convert]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.1, %impl.elem0 [concrete = constants.%Core.CharLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %Core.CharLiteral.as.ImplicitAs.impl.Convert.call: init %Char = call %bound_method(%.loc8_11.1) [concrete = constants.%int_88]
 // CHECK:STDOUT:   %.loc8_11.2: %Char = value_of_initializer %Core.CharLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_88]
@@ -1036,18 +1036,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -1063,8 +1063,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1072,7 +1072,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc13_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc13_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1137,22 +1137,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1170,8 +1170,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c2: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c2), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1181,7 +1181,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc8_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1192,7 +1192,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_13.4: ref %i16 = temporary %.loc8_13.3, %.loc8_13.2
 // CHECK:STDOUT:   %addr.loc8_19: %ptr.251 = addr_of %.loc8_13.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_13.3: <bound method> = bound_method %.loc8_13.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_13: %ptr.251 = addr_of %.loc8_13.4
@@ -1212,22 +1212,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_32767.f4b: Core.IntLiteral = int_value 32767 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.adb: type = facet_type <@ImplicitAs, @ImplicitAs(%i16)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.9fb: type = facet_type <@ImplicitAs, @ImplicitAs(%i16)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.fa6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.97b: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.33c: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.33c = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.6f2: %ImplicitAs.type.adb = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.97b) [concrete]
-// CHECK:STDOUT:   %.236: type = fn_type_with_self_type %ImplicitAs.Convert.type.fa6, %ImplicitAs.facet.6f2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_32767.f4b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.43c: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.346: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.346 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.fa2: %ImplicitAs.type.9fb = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.43c) [concrete]
+// CHECK:STDOUT:   %.8df: type = fn_type_with_self_type %ImplicitAs.Convert.type.fa6, %ImplicitAs.facet.fa2 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_32767.f4b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_32767.f4b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_32767.faa: %i16 = int_value 32767 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1245,8 +1245,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1254,7 +1254,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_32767: Core.IntLiteral = int_value 32767 [concrete = constants.%int_32767.f4b]
-// CHECK:STDOUT:   %impl.elem0: %.236 = impl_witness_access constants.%ImplicitAs.impl_witness.97b, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a]
+// CHECK:STDOUT:   %impl.elem0: %.8df = impl_witness_access constants.%ImplicitAs.impl_witness.43c, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_32767, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_32767, %specific_fn [concrete = constants.%bound_method]
@@ -1265,7 +1265,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_11.4: ref %i16 = temporary %.loc8_11.3, %.loc8_11.2
 // CHECK:STDOUT:   %addr.loc8_17: %ptr.251 = addr_of %.loc8_11.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_17)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.4, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.4, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_11.3: <bound method> = bound_method %.loc8_11.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11: %ptr.251 = addr_of %.loc8_11.4
@@ -1287,29 +1287,29 @@ fn F() {
 // CHECK:STDOUT:   %int_32768: Core.IntLiteral = int_value 32768 [concrete]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
-// CHECK:STDOUT:   %Negate.impl_witness.973: <witness> = impl_witness imports.%Negate.impl_witness_table.b22 [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.973) [concrete]
-// CHECK:STDOUT:   %.d3d: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Negate.impl_witness.2fb: <witness> = impl_witness imports.%Negate.impl_witness_table.1da [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.2fb) [concrete]
+// CHECK:STDOUT:   %.e9a: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.type: type = fn_type @Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op: %Core.IntLiteral.as.Negate.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.bound: <bound method> = bound_method %int_32768, %Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %int_-32768.882: Core.IntLiteral = int_value -32768 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.adb: type = facet_type <@ImplicitAs, @ImplicitAs(%i16)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.9fb: type = facet_type <@ImplicitAs, @ImplicitAs(%i16)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.fa6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.97b: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.33c: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.33c = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.6f2: %ImplicitAs.type.adb = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.97b) [concrete]
-// CHECK:STDOUT:   %.236: type = fn_type_with_self_type %ImplicitAs.Convert.type.fa6, %ImplicitAs.facet.6f2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_-32768.882, %Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.43c: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.346: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.346 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.fa2: %ImplicitAs.type.9fb = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.43c) [concrete]
+// CHECK:STDOUT:   %.8df: type = fn_type_with_self_type %ImplicitAs.Convert.type.fa6, %ImplicitAs.facet.fa2 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_-32768.882, %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_-32768.882, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_-32768.7e5: %i16 = int_value -32768 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1328,10 +1328,10 @@ fn F() {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.import_ref.abd9 = import_ref Core//prelude/operators/arithmetic, loc111_50, unloaded
-// CHECK:STDOUT:   %Core.import_ref.5e6a: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc112_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
-// CHECK:STDOUT:   %Negate.impl_witness_table.b22 = impl_witness_table (%Core.import_ref.abd9, %Core.import_ref.5e6a), @Core.IntLiteral.as.Negate.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.037: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/operators/arithmetic, loc112_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %Negate.impl_witness_table.1da = impl_witness_table (%Core.import_ref.abd9, %Core.import_ref.037), @Core.IntLiteral.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1339,10 +1339,10 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_32768: Core.IntLiteral = int_value 32768 [concrete = constants.%int_32768]
-// CHECK:STDOUT:   %impl.elem1: %.d3d = impl_witness_access constants.%Negate.impl_witness.973, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.e9a = impl_witness_access constants.%Negate.impl_witness.2fb, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_32768, %impl.elem1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op.bound]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.call: init Core.IntLiteral = call %bound_method.loc8_11.1(%int_32768) [concrete = constants.%int_-32768.882]
-// CHECK:STDOUT:   %impl.elem0: %.236 = impl_witness_access constants.%ImplicitAs.impl_witness.97b, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.d0a]
+// CHECK:STDOUT:   %impl.elem0: %.8df = impl_witness_access constants.%ImplicitAs.impl_witness.43c, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.3: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %specific_fn [concrete = constants.%bound_method]
@@ -1355,7 +1355,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_11.6: ref %i16 = temporary %.loc8_11.5, %.loc8_11.4
 // CHECK:STDOUT:   %addr.loc8_18: %ptr.251 = addr_of %.loc8_11.6
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_18)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.6, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.6, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_11.4: <bound method> = bound_method %.loc8_11.6, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11: %ptr.251 = addr_of %.loc8_11.6
@@ -1375,22 +1375,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1408,8 +1408,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c2: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c2), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1419,7 +1419,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc8_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1430,7 +1430,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_13.4: ref %i16 = temporary %.loc8_13.3, %.loc8_13.2
 // CHECK:STDOUT:   %addr.loc8_19: %ptr.251 = addr_of %.loc8_13.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_13.3: <bound method> = bound_method %.loc8_13.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_13: %ptr.251 = addr_of %.loc8_13.4
@@ -1450,22 +1450,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1483,8 +1483,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c2: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c2), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1494,7 +1494,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc8_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1505,7 +1505,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_13.4: ref %i16 = temporary %.loc8_13.3, %.loc8_13.2
 // CHECK:STDOUT:   %addr.loc8_19: %ptr.251 = addr_of %.loc8_13.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_13.3: <bound method> = bound_method %.loc8_13.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_13: %ptr.251 = addr_of %.loc8_13.4
@@ -1525,22 +1525,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1558,8 +1558,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c2: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c2), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1569,7 +1569,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc8_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1580,7 +1580,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_13.4: ref %i16 = temporary %.loc8_13.3, %.loc8_13.2
 // CHECK:STDOUT:   %addr.loc8_19: %ptr.251 = addr_of %.loc8_13.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_13.3: <bound method> = bound_method %.loc8_13.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_13: %ptr.251 = addr_of %.loc8_13.4
@@ -1600,22 +1600,22 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1633,8 +1633,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c2: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c2), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1644,7 +1644,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc8_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1655,7 +1655,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_13.4: ref %i16 = temporary %.loc8_13.3, %.loc8_13.2
 // CHECK:STDOUT:   %addr.loc8_19: %ptr.251 = addr_of %.loc8_13.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.536
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_13.4, constants.%Int.as.Destroy.impl.Op.718
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_13.3: <bound method> = bound_method %.loc8_13.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_13: %ptr.251 = addr_of %.loc8_13.4
@@ -1676,18 +1676,18 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -1707,8 +1707,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c2: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/types/int, loc29_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c2), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1718,7 +1718,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc16_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1862,21 +1862,21 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %float.c64: Core.FloatLiteral = float_literal_value 8e-1 [concrete]
-// CHECK:STDOUT:   %As.type.c58: type = facet_type <@As, @As(%f16.a6a)> [concrete]
+// CHECK:STDOUT:   %As.type.b64: type = facet_type <@As, @As(%f16.a6a)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.c23: type = fn_type @As.Convert, @As(%f16.a6a) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.6a5: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.6af: %Core.FloatLiteral.as.As.impl.Convert.type.6a5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.bc0: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.f15: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e2a: %Core.FloatLiteral.as.As.impl.Convert.type.f15 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.c58 = facet_value Core.FloatLiteral, (%As.impl_witness.bc0) [concrete]
-// CHECK:STDOUT:   %.178: type = fn_type_with_self_type %As.Convert.type.c23, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.e2a [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.e2a, @Core.FloatLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.b91: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e7c: %Core.FloatLiteral.as.As.impl.Convert.type.b91 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.88c: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.594: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.fa6: %Core.FloatLiteral.as.As.impl.Convert.type.594 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.b64 = facet_value Core.FloatLiteral, (%As.impl_witness.88c) [concrete]
+// CHECK:STDOUT:   %.854: type = fn_type_with_self_type %As.Convert.type.c23, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.fa6 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.fa6, @Core.FloatLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.032: %f16.a6a = float_value 0.7998 [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.cf1: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.85f: %Float.as.Destroy.impl.Op.type.cf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.c42: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bd5: %Float.as.Destroy.impl.Op.type.c42 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1894,8 +1894,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.2c9: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.6a5) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.6af)]
-// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.2c9), @Core.FloatLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.497: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.b91) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.e7c)]
+// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.497), @Core.FloatLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1905,7 +1905,7 @@ fn F() {
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 8e-1 [concrete = constants.%float.c64]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %f16: type = class_type @Float, @Float(constants.%int_16) [concrete = constants.%f16.a6a]
-// CHECK:STDOUT:   %impl.elem0: %.178 = impl_witness_access constants.%As.impl_witness.bc0, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.e2a]
+// CHECK:STDOUT:   %impl.elem0: %.854 = impl_witness_access constants.%As.impl_witness.88c, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.fa6]
 // CHECK:STDOUT:   %bound_method.loc8_15.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_15.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -1916,7 +1916,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_15.4: ref %f16.a6a = temporary %.loc8_15.3, %.loc8_15.2
 // CHECK:STDOUT:   %addr.loc8_21: %ptr.823 = addr_of %.loc8_15.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_21)
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.85f
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.bd5
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_15.3: <bound method> = bound_method %.loc8_15.4, %Float.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.823 = addr_of %.loc8_15.4
@@ -1937,21 +1937,21 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %float.c64: Core.FloatLiteral = float_literal_value 8e-1 [concrete]
-// CHECK:STDOUT:   %As.type.114: type = facet_type <@As, @As(%f32.97e)> [concrete]
+// CHECK:STDOUT:   %As.type.9fc: type = facet_type <@As, @As(%f32.97e)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.f5e: type = fn_type @As.Convert, @As(%f32.97e) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.6a5: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.6af: %Core.FloatLiteral.as.As.impl.Convert.type.6a5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.1e4: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.73e: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.7b2: %Core.FloatLiteral.as.As.impl.Convert.type.73e = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.114 = facet_value Core.FloatLiteral, (%As.impl_witness.1e4) [concrete]
-// CHECK:STDOUT:   %.b33: type = fn_type_with_self_type %As.Convert.type.f5e, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.7b2 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.7b2, @Core.FloatLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.b91: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e7c: %Core.FloatLiteral.as.As.impl.Convert.type.b91 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.992: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.421: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.3c7: %Core.FloatLiteral.as.As.impl.Convert.type.421 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.9fc = facet_value Core.FloatLiteral, (%As.impl_witness.992) [concrete]
+// CHECK:STDOUT:   %.372: type = fn_type_with_self_type %As.Convert.type.f5e, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.3c7 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.3c7, @Core.FloatLiteral.as.As.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.4cb: %f32.97e = float_value 0.800000011 [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.1b1: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.199: %Float.as.Destroy.impl.Op.type.1b1 = struct_value () [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.d27: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.232: %Float.as.Destroy.impl.Op.type.d27 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1969,8 +1969,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.2c9: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.6a5) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.6af)]
-// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.2c9), @Core.FloatLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.497: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.b91) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.e7c)]
+// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.497), @Core.FloatLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1980,7 +1980,7 @@ fn F() {
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 8e-1 [concrete = constants.%float.c64]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %f32: type = class_type @Float, @Float(constants.%int_32) [concrete = constants.%f32.97e]
-// CHECK:STDOUT:   %impl.elem0: %.b33 = impl_witness_access constants.%As.impl_witness.1e4, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.7b2]
+// CHECK:STDOUT:   %impl.elem0: %.372 = impl_witness_access constants.%As.impl_witness.992, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.3c7]
 // CHECK:STDOUT:   %bound_method.loc8_15.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_15.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -1991,7 +1991,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_15.4: ref %f32.97e = temporary %.loc8_15.3, %.loc8_15.2
 // CHECK:STDOUT:   %addr.loc8_21: %ptr.0bc = addr_of %.loc8_15.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_21)
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.199
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.232
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_15.3: <bound method> = bound_method %.loc8_15.4, %Float.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.0bc = addr_of %.loc8_15.4
@@ -2012,21 +2012,21 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %float.c64: Core.FloatLiteral = float_literal_value 8e-1 [concrete]
-// CHECK:STDOUT:   %As.type.6d2: type = facet_type <@As, @As(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %As.type.a57: type = facet_type <@As, @As(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.8fc: type = fn_type @As.Convert, @As(%f64.d77) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.6a5: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.6af: %Core.FloatLiteral.as.As.impl.Convert.type.6a5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.a23: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.12c: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.6ae: %Core.FloatLiteral.as.As.impl.Convert.type.12c = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.6d2 = facet_value Core.FloatLiteral, (%As.impl_witness.a23) [concrete]
-// CHECK:STDOUT:   %.d03: type = fn_type_with_self_type %As.Convert.type.8fc, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.6ae [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.6ae, @Core.FloatLiteral.as.As.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.b91: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e7c: %Core.FloatLiteral.as.As.impl.Convert.type.b91 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.b46: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.281: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.251: %Core.FloatLiteral.as.As.impl.Convert.type.281 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.a57 = facet_value Core.FloatLiteral, (%As.impl_witness.b46) [concrete]
+// CHECK:STDOUT:   %.ec3: type = fn_type_with_self_type %As.Convert.type.8fc, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.251 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.251, @Core.FloatLiteral.as.As.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.0fc: %f64.d77 = float_value 0.80000000000000004 [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.cd5: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.b8c: %Float.as.Destroy.impl.Op.type.cd5 = struct_value () [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.ce0: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.af3: %Float.as.Destroy.impl.Op.type.ce0 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2044,8 +2044,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.2c9: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.6a5) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.6af)]
-// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.2c9), @Core.FloatLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.497: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.b91) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.e7c)]
+// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.497), @Core.FloatLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -2055,7 +2055,7 @@ fn F() {
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 8e-1 [concrete = constants.%float.c64]
 // CHECK:STDOUT:   %int_64: Core.IntLiteral = int_value 64 [concrete = constants.%int_64]
 // CHECK:STDOUT:   %f64: type = class_type @Float, @Float(constants.%int_64) [concrete = constants.%f64.d77]
-// CHECK:STDOUT:   %impl.elem0: %.d03 = impl_witness_access constants.%As.impl_witness.a23, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.6ae]
+// CHECK:STDOUT:   %impl.elem0: %.ec3 = impl_witness_access constants.%As.impl_witness.b46, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.251]
 // CHECK:STDOUT:   %bound_method.loc8_15.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.As.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_15.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -2066,7 +2066,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_15.4: ref %f64.d77 = temporary %.loc8_15.3, %.loc8_15.2
 // CHECK:STDOUT:   %addr.loc8_21: %ptr.bcc = addr_of %.loc8_15.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_21)
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.b8c
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.af3
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_15.3: <bound method> = bound_method %.loc8_15.4, %Float.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.bcc = addr_of %.loc8_15.4
@@ -2087,21 +2087,21 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %float.c64: Core.FloatLiteral = float_literal_value 8e-1 [concrete]
-// CHECK:STDOUT:   %As.type.d2d: type = facet_type <@As, @As(%f128.b8c)> [concrete]
+// CHECK:STDOUT:   %As.type.6c6: type = facet_type <@As, @As(%f128.b8c)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.3bf: type = fn_type @As.Convert, @As(%f128.b8c) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.6a5: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.6af: %Core.FloatLiteral.as.As.impl.Convert.type.6a5 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.8a8: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_128) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.22a: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_128) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e57: %Core.FloatLiteral.as.As.impl.Convert.type.22a = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.d2d = facet_value Core.FloatLiteral, (%As.impl_witness.8a8) [concrete]
-// CHECK:STDOUT:   %.df5: type = fn_type_with_self_type %As.Convert.type.3bf, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.e57 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.e57, @Core.FloatLiteral.as.As.impl.Convert(%int_128) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.b91: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%N) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e7c: %Core.FloatLiteral.as.As.impl.Convert.type.b91 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.c7e: <witness> = impl_witness imports.%As.impl_witness_table, @Core.FloatLiteral.as.As.impl(%int_128) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.type.50d: type = fn_type @Core.FloatLiteral.as.As.impl.Convert, @Core.FloatLiteral.as.As.impl(%int_128) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.e2e: %Core.FloatLiteral.as.As.impl.Convert.type.50d = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.6c6 = facet_value Core.FloatLiteral, (%As.impl_witness.c7e) [concrete]
+// CHECK:STDOUT:   %.be5: type = fn_type_with_self_type %As.Convert.type.3bf, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.e2e [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.As.impl.Convert.e2e, @Core.FloatLiteral.as.As.impl.Convert(%int_128) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.c64, %Core.FloatLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.709: %f128.b8c = float_value 0.800000000000000000000000000000000039 [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.0e0: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_128) [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.052: %Float.as.Destroy.impl.Op.type.0e0 = struct_value () [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.d56: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_128) [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.74e: %Float.as.Destroy.impl.Op.type.d56 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2119,8 +2119,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.2c9: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.6a5) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.6af)]
-// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.2c9), @Core.FloatLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.497: @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert.type (%Core.FloatLiteral.as.As.impl.Convert.type.b91) = import_ref Core//prelude/types/float, loc27_40, loaded [symbolic = @Core.FloatLiteral.as.As.impl.%Core.FloatLiteral.as.As.impl.Convert (constants.%Core.FloatLiteral.as.As.impl.Convert.e7c)]
+// CHECK:STDOUT:   %As.impl_witness_table = impl_witness_table (%Core.import_ref.497), @Core.FloatLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -2130,7 +2130,7 @@ fn F() {
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 8e-1 [concrete = constants.%float.c64]
 // CHECK:STDOUT:   %int_128: Core.IntLiteral = int_value 128 [concrete = constants.%int_128]
 // CHECK:STDOUT:   %f128: type = class_type @Float, @Float(constants.%int_128) [concrete = constants.%f128.b8c]
-// CHECK:STDOUT:   %impl.elem0: %.df5 = impl_witness_access constants.%As.impl_witness.8a8, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.e57]
+// CHECK:STDOUT:   %impl.elem0: %.be5 = impl_witness_access constants.%As.impl_witness.c7e, element0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.e2e]
 // CHECK:STDOUT:   %bound_method.loc8_15.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.As.impl.Convert(constants.%int_128) [concrete = constants.%Core.FloatLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_15.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -2141,7 +2141,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_15.4: ref %f128.b8c = temporary %.loc8_15.3, %.loc8_15.2
 // CHECK:STDOUT:   %addr.loc8_22: %ptr.402 = addr_of %.loc8_15.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_22)
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.052
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%Float.as.Destroy.impl.Op.74e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_15.3: <bound method> = bound_method %.loc8_15.4, %Float.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.402 = addr_of %.loc8_15.4
diff --git a/toolchain/check/testdata/interop/cpp/function/arithmetic_types_direct.carbon b/toolchain/check/testdata/interop/cpp/function/arithmetic_types_direct.carbon
index 95535ece5349..643ef1ad17b4 100644
--- a/toolchain/check/testdata/interop/cpp/function/arithmetic_types_direct.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/arithmetic_types_direct.carbon
@@ -476,18 +476,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -502,8 +502,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -511,7 +511,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -531,18 +531,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2147483647.d89: Core.IntLiteral = int_value 2147483647 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2147483647.d89, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2147483647.a74: %i32 = int_value 2147483647 [concrete]
 // CHECK:STDOUT: }
@@ -557,8 +557,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -566,7 +566,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_2147483647: Core.IntLiteral = int_value 2147483647 [concrete = constants.%int_2147483647.d89]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_2147483647, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_2147483647, %specific_fn [concrete = constants.%bound_method]
@@ -588,25 +588,25 @@ fn F() {
 // CHECK:STDOUT:   %int_2147483648: Core.IntLiteral = int_value 2147483648 [concrete]
 // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [concrete]
 // CHECK:STDOUT:   %Negate.Op.type: type = fn_type @Negate.Op [concrete]
-// CHECK:STDOUT:   %Negate.impl_witness.973: <witness> = impl_witness imports.%Negate.impl_witness_table.b22 [concrete]
-// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.973) [concrete]
-// CHECK:STDOUT:   %.d3d: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
+// CHECK:STDOUT:   %Negate.impl_witness.2fb: <witness> = impl_witness imports.%Negate.impl_witness_table.1da [concrete]
+// CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, (%Negate.impl_witness.2fb) [concrete]
+// CHECK:STDOUT:   %.e9a: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.type: type = fn_type @Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op: %Core.IntLiteral.as.Negate.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.bound: <bound method> = bound_method %int_2147483648, %Core.IntLiteral.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %int_-2147483648.3b9: Core.IntLiteral = int_value -2147483648 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_-2147483648.3b9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_-2147483648.3b9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_-2147483648.3b9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_-2147483648.95c: %i32 = int_value -2147483648 [concrete]
 // CHECK:STDOUT: }
@@ -622,10 +622,10 @@ fn F() {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.import_ref.abd = import_ref Core//prelude/parts/int_literal, loc13_50, unloaded
-// CHECK:STDOUT:   %Core.import_ref.5e6: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/parts/int_literal, loc14_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
-// CHECK:STDOUT:   %Negate.impl_witness_table.b22 = impl_witness_table (%Core.import_ref.abd, %Core.import_ref.5e6), @Core.IntLiteral.as.Negate.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.037: %Core.IntLiteral.as.Negate.impl.Op.type = import_ref Core//prelude/parts/int_literal, loc14_31, loaded [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %Negate.impl_witness_table.1da = impl_witness_table (%Core.import_ref.abd, %Core.import_ref.037), @Core.IntLiteral.as.Negate.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -633,10 +633,10 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_2147483648: Core.IntLiteral = int_value 2147483648 [concrete = constants.%int_2147483648]
-// CHECK:STDOUT:   %impl.elem1: %.d3d = impl_witness_access constants.%Negate.impl_witness.973, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.e9a = impl_witness_access constants.%Negate.impl_witness.2fb, element1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_2147483648, %impl.elem1 [concrete = constants.%Core.IntLiteral.as.Negate.impl.Op.bound]
 // CHECK:STDOUT:   %Core.IntLiteral.as.Negate.impl.Op.call: init Core.IntLiteral = call %bound_method.loc8_11.1(%int_2147483648) [concrete = constants.%int_-2147483648.3b9]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.3: <bound method> = bound_method %Core.IntLiteral.as.Negate.impl.Op.call, %specific_fn [concrete = constants.%bound_method]
@@ -658,18 +658,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -684,8 +684,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -693,7 +693,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -713,18 +713,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -739,8 +739,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -748,7 +748,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -768,18 +768,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9b4: type = facet_type <@ImplicitAs, @ImplicitAs(%u32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.146: type = facet_type <@ImplicitAs, @ImplicitAs(%u32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.92a: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%u32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.d1a: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.ac5: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.bb8, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.feb: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.319: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.feb = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.9b4 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ac5) [concrete]
-// CHECK:STDOUT:   %.bd1: type = fn_type_with_self_type %ImplicitAs.Convert.type.92a, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.319 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.319, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.8f6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.2b0: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b63, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.b4b: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.a3b: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.b4b = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.146 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.2b0) [concrete]
+// CHECK:STDOUT:   %.034: type = fn_type_with_self_type %ImplicitAs.Convert.type.92a, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.a3b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.a3b, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.c1d: %u32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -794,8 +794,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.c3d: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.30e) = import_ref Core//prelude/parts/uint, loc16_40, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.d1a)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.bb8 = impl_witness_table (%Core.import_ref.c3d), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.104: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.367) = import_ref Core//prelude/parts/uint, loc16_40, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.8f6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b63 = impl_witness_table (%Core.import_ref.104), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -803,7 +803,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.bd1 = impl_witness_access constants.%ImplicitAs.impl_witness.ac5, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.319]
+// CHECK:STDOUT:   %impl.elem0: %.034 = impl_witness_access constants.%ImplicitAs.impl_witness.2b0, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.a3b]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -823,18 +823,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -849,8 +849,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -858,7 +858,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -879,22 +879,22 @@ fn F() {
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -908,8 +908,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -918,17 +918,17 @@ fn F() {
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc8_11: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_11 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc8_11: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_11 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc8_11: <specific function> = specific_function %impl.elem0.loc8_11, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn.loc8_11 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn.loc8_11 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_11: init %i32 = call %bound_method.loc8_11.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc8_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_11 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc8_11.2: %i32 = converted %int_1, %.loc8_11.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc8_14: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_14.1: <bound method> = bound_method %int_2, %impl.elem0.loc8_14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc8_14: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_14.1: <bound method> = bound_method %int_2, %impl.elem0.loc8_14 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc8_14: <specific function> = specific_function %impl.elem0.loc8_14, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_14.2: <bound method> = bound_method %int_2, %specific_fn.loc8_14 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc8_14.2: <bound method> = bound_method %int_2, %specific_fn.loc8_14 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_14: init %i32 = call %bound_method.loc8_14.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc8_14.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_14 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc8_14.2: %i32 = converted %int_2, %.loc8_14.1 [concrete = constants.%int_2.ef8]
@@ -946,32 +946,32 @@ fn F() {
 // CHECK:STDOUT:   %foo1: %foo1.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %foo2.type: type = fn_type @foo2 [concrete]
 // CHECK:STDOUT:   %foo2: %foo2.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -986,8 +986,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %foo2.decl: %foo2.type = fn_decl @foo2 [concrete = constants.%foo2] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
@@ -1001,17 +1001,17 @@ fn F() {
 // CHECK:STDOUT:   %foo1.ref: %foo1.type = name_ref foo1, imports.%foo1.decl [concrete = constants.%foo1]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc8_12: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_12.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc8_12: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_12.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc8_12: <specific function> = specific_function %impl.elem0.loc8_12, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_12.2: <bound method> = bound_method %int_1, %specific_fn.loc8_12 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc8_12.2: <bound method> = bound_method %int_1, %specific_fn.loc8_12 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_12: init %i32 = call %bound_method.loc8_12.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc8_12.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_12 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc8_12.2: %i32 = converted %int_1, %.loc8_12.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc8_15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_15.1: <bound method> = bound_method %int_2, %impl.elem0.loc8_15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc8_15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_15.1: <bound method> = bound_method %int_2, %impl.elem0.loc8_15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc8_15: <specific function> = specific_function %impl.elem0.loc8_15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_15.2: <bound method> = bound_method %int_2, %specific_fn.loc8_15 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc8_15.2: <bound method> = bound_method %int_2, %specific_fn.loc8_15 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_15: init %i32 = call %bound_method.loc8_15.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc8_15.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8_15 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc8_15.2: %i32 = converted %int_2, %.loc8_15.1 [concrete = constants.%int_2.ef8]
@@ -1020,17 +1020,17 @@ fn F() {
 // CHECK:STDOUT:   %foo2.ref: %foo2.type = name_ref foo2, imports.%foo2.decl [concrete = constants.%foo2]
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc9_12: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_12.1: <bound method> = bound_method %int_3, %impl.elem0.loc9_12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc9_12: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_12.1: <bound method> = bound_method %int_3, %impl.elem0.loc9_12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc9_12: <specific function> = specific_function %impl.elem0.loc9_12, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_12.2: <bound method> = bound_method %int_3, %specific_fn.loc9_12 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc9_12.2: <bound method> = bound_method %int_3, %specific_fn.loc9_12 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_12: init %i32 = call %bound_method.loc9_12.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc9_12.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_12 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc9_12.2: %i32 = converted %int_3, %.loc9_12.1 [concrete = constants.%int_3.822]
-// CHECK:STDOUT:   %impl.elem0.loc9_15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_15.1: <bound method> = bound_method %int_4, %impl.elem0.loc9_15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc9_15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_15.1: <bound method> = bound_method %int_4, %impl.elem0.loc9_15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc9_15: <specific function> = specific_function %impl.elem0.loc9_15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_15.2: <bound method> = bound_method %int_4, %specific_fn.loc9_15 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc9_15.2: <bound method> = bound_method %int_4, %specific_fn.loc9_15 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_15: init %i32 = call %bound_method.loc9_15.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc9_15.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9_15 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc9_15.2: %i32 = converted %int_4, %.loc9_15.1 [concrete = constants.%int_4.940]
@@ -1047,18 +1047,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -1073,8 +1073,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1082,7 +1082,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1128,18 +1128,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -1154,8 +1154,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1163,7 +1163,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -1370,18 +1370,18 @@ fn F() {
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.131: type = facet_type <@ImplicitAs, @ImplicitAs(%i64)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.2ad: type = facet_type <@ImplicitAs, @ImplicitAs(%i64)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.94e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i64) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.241: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.401: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.77d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.401 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.131 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.241) [concrete]
-// CHECK:STDOUT:   %.4c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.94e, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.77d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.77d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.e6d: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.1b4: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.a0e: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.1b4 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.2ad = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e6d) [concrete]
+// CHECK:STDOUT:   %.f74: type = fn_type_with_self_type %ImplicitAs.Convert.type.94e, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.a0e [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.a0e, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.41a: %i64 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -1396,8 +1396,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -1405,7 +1405,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.4c2 = impl_witness_access constants.%ImplicitAs.impl_witness.241, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.77d]
+// CHECK:STDOUT:   %impl.elem0: %.f74 = impl_witness_access constants.%ImplicitAs.impl_witness.e6d, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.a0e]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/interop/cpp/function/class.carbon b/toolchain/check/testdata/interop/cpp/function/class.carbon
index 644563667d26..7df836f15701 100644
--- a/toolchain/check/testdata/interop/cpp/function/class.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/class.carbon
@@ -556,8 +556,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -594,7 +594,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_14.3: ref %C = value_as_ref %.loc8_14.2
 // CHECK:STDOUT:   %addr.loc8_22: %ptr.d9e = addr_of %.loc8_14.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.d9e = addr_of %.loc8_12.4
@@ -611,8 +611,8 @@ fn F() {
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.d9e: type = ptr_type %C [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -643,7 +643,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc24_14.1: ref %C = converted %.loc24_12.1, %.loc24_12.4
 // CHECK:STDOUT:   %.loc24_14.2: %C = bind_value %.loc24_14.1
 // CHECK:STDOUT:   %foo.call: init %empty_tuple.type = call %foo.ref(%.loc24_14.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_12.4, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_12.4, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc24_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.d9e = addr_of %.loc24_12.4
@@ -754,8 +754,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.9ae: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.dbb: %T.as.Destroy.impl.Op.type.9ae = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.054: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2bd: %T.as.Destroy.impl.Op.type.054 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -808,12 +808,12 @@ fn F() {
 // CHECK:STDOUT:     %C.ref.loc10: type = name_ref C, imports.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %C = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.2bd
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10: %ptr.838 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.2bd
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.838 = addr_of %.loc8_12.4
@@ -833,8 +833,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.b28: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f48: %T.as.Destroy.impl.Op.type.b28 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.357: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21e: %T.as.Destroy.impl.Op.type.357 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -882,7 +882,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_17.3: ref %C = value_as_ref %.loc8_17.2
 // CHECK:STDOUT:   %addr.loc8_31: %ptr.c0c = addr_of %.loc8_17.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_31)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%T.as.Destroy.impl.Op.f48
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%T.as.Destroy.impl.Op.21e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_15.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.c0c = addr_of %.loc8_15.4
@@ -904,11 +904,11 @@ fn F() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cff: type = pattern_type %O [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%O) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2df: %T.as.Destroy.impl.Op.type.1b8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a33: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%O) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.b71: %T.as.Destroy.impl.Op.type.a33 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.820: type = ptr_type %O [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ac8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.362: %T.as.Destroy.impl.Op.type.ac8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.637: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8d0: %T.as.Destroy.impl.Op.type.637 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -957,12 +957,12 @@ fn F() {
 // CHECK:STDOUT:     %O.ref.loc9: type = name_ref O, imports.%O.decl [concrete = constants.%O]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %O = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.2df
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.b71
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9: %ptr.820 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.362
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.8d0
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.de2 = addr_of %.loc8_12.4
@@ -984,8 +984,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1027,7 +1027,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc9_14.3: ref %C = value_as_ref %.loc9_14.2
 // CHECK:STDOUT:   %addr.loc9_22: %ptr.d9e = addr_of %.loc9_14.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc9_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_12.4, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_12.4, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc9_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc9_12: %ptr.d9e = addr_of %.loc9_12.4
@@ -1049,8 +1049,8 @@ fn F() {
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
 // CHECK:STDOUT:   %C.bar.type: type = fn_type @C.bar [concrete]
 // CHECK:STDOUT:   %C.bar: %C.bar.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1092,7 +1092,7 @@ fn F() {
 // CHECK:STDOUT:   %C.ref.loc9: type = name_ref C, imports.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   %bar.ref: %C.bar.type = name_ref bar, imports.%C.bar.decl [concrete = constants.%C.bar]
 // CHECK:STDOUT:   %C.bar.call: init %empty_tuple.type = call %bar.ref()
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.d9e = addr_of %.loc8_12.4
@@ -1176,8 +1176,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.d9e: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1206,7 +1206,7 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_11.1)
 // CHECK:STDOUT:   %.loc8_11.2: init %C = in_place_init %foo__carbon_thunk.call, %.loc8_11.1
 // CHECK:STDOUT:   %.loc8_11.3: ref %C = temporary %.loc8_11.1, %.loc8_11.2
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11.2: %ptr.d9e = addr_of %.loc8_11.3
diff --git a/toolchain/check/testdata/interop/cpp/function/full_semir.carbon b/toolchain/check/testdata/interop/cpp/function/full_semir.carbon
index a77a2b56c226..01f8223d62eb 100644
--- a/toolchain/check/testdata/interop/cpp/function/full_semir.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/full_semir.carbon
@@ -85,24 +85,24 @@ fn F() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.a96: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.359: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.be5: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.0ef: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.172: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.489: %Core.IntLiteral.as.As.impl.Convert.type.172 = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.a96 = facet_value Core.IntLiteral, (%As.impl_witness.0ef) [concrete]
-// CHECK:STDOUT:   %.91d: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.489 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.489, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.30d: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.bf1: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.3d5: %Core.IntLiteral.as.As.impl.Convert.type.bf1 = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.359 = facet_value Core.IntLiteral, (%As.impl_witness.30d) [concrete]
+// CHECK:STDOUT:   %.a59: type = fn_type_with_self_type %As.Convert.type.be5, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.3d5 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.3d5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.f90: %i16 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.613: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.536: %Int.as.Destroy.impl.Op.type.613 = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.536, @Int.as.Destroy.impl.Op(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.718, @Int.as.Destroy.impl.Op(%int_16) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -141,8 +141,8 @@ fn F() {
 // CHECK:STDOUT:     %a: %ptr.251 = bind_name a, %a.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/parts/as, As, loaded [concrete = constants.%As.generic]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -166,7 +166,7 @@ fn F() {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0: %.91d = impl_witness_access constants.%As.impl_witness.0ef, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.489]
+// CHECK:STDOUT:   %impl.elem0: %.a59 = impl_witness_access constants.%As.impl_witness.30d, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.3d5]
 // CHECK:STDOUT:   %bound_method.loc7_13.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_13.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
@@ -177,8 +177,8 @@ fn F() {
 // CHECK:STDOUT:   %.loc7_13.4: ref %i16 = temporary %.loc7_13.3, %.loc7_13.2
 // CHECK:STDOUT:   %addr.loc7_19: %ptr.251 = addr_of %.loc7_13.4
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc7_19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc7_13.4, constants.%Int.as.Destroy.impl.Op.536
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.536, @Int.as.Destroy.impl.Op(constants.%int_16) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc7_13.4, constants.%Int.as.Destroy.impl.Op.718
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.718, @Int.as.Destroy.impl.Op(constants.%int_16) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_13.3: <bound method> = bound_method %.loc7_13.4, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc7_13: %ptr.251 = addr_of %.loc7_13.4
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc7_13.3(%addr.loc7_13)
@@ -205,18 +205,18 @@ fn F() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -245,8 +245,8 @@ fn F() {
 // CHECK:STDOUT:     %a: %i32 = bind_name a, %a.param
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -267,7 +267,7 @@ fn F() {
 // CHECK:STDOUT:   %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
 // CHECK:STDOUT:   %foo.ref: %foo.type = name_ref foo, imports.%foo.decl [concrete = constants.%foo]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc7_11.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_11.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/interop/cpp/function/in_template.carbon b/toolchain/check/testdata/interop/cpp/function/in_template.carbon
index 01eeef3497e5..8bf588c1af11 100644
--- a/toolchain/check/testdata/interop/cpp/function/in_template.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/in_template.carbon
@@ -43,18 +43,18 @@ fn F() {
 // CHECK:STDOUT:   %X.f.type: type = fn_type @X.f [concrete]
 // CHECK:STDOUT:   %X.f: %X.f.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [concrete]
 // CHECK:STDOUT: }
@@ -70,8 +70,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -80,7 +80,7 @@ fn F() {
 // CHECK:STDOUT:   %Y.ref: type = name_ref Y, imports.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:   %f.ref: %X.f.type = name_ref f, imports.%X.f.decl [concrete = constants.%X.f]
 // CHECK:STDOUT:   %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_11.1: <bound method> = bound_method %int_42, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_11.2: <bound method> = bound_method %int_42, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/interop/cpp/function/operators.carbon b/toolchain/check/testdata/interop/cpp/function/operators.carbon
index 85db1ba061e1..c5c3ff70c24b 100644
--- a/toolchain/check/testdata/interop/cpp/function/operators.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/operators.carbon
@@ -676,8 +676,8 @@ fn F() {
 // CHECK:STDOUT:   %operator--__carbon_thunk: %operator--__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %operator-__carbon_thunk.type: type = fn_type @operator-__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator-__carbon_thunk: %operator-__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -765,22 +765,22 @@ fn F() {
 // CHECK:STDOUT:   %.loc15_22.3: ref %C = temporary %.loc15_22.1, %.loc15_22.2
 // CHECK:STDOUT:   %.loc15_22.4: %C = bind_value %.loc15_22.3
 // CHECK:STDOUT:   %minus: %C = bind_name minus, %.loc15_22.4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc15: <bound method> = bound_method %.loc15_22.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc15: <bound method> = bound_method %.loc15_22.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc15: <bound method> = bound_method %.loc15_22.3, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc15_22.3: %ptr.d9e = addr_of %.loc15_22.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc15: init %empty_tuple.type = call %bound_method.loc15(%addr.loc15_22.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_3.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_3.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12: <bound method> = bound_method %.loc12_3.3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc12_3.3: %ptr.d9e = addr_of %.loc12_3.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc12: init %empty_tuple.type = call %bound_method.loc12(%addr.loc12_3.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %.loc11_3.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %.loc11_3.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc11: <bound method> = bound_method %.loc11_3.3, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc11_3.3: %ptr.d9e = addr_of %.loc11_3.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc11: init %empty_tuple.type = call %bound_method.loc11(%addr.loc11_3.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_26.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_26.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_26.3, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc8_26.2: %ptr.d9e = addr_of %.loc8_26.3
@@ -820,26 +820,26 @@ fn F() {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %operator<<__carbon_thunk.type: type = fn_type @operator<<__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator<<__carbon_thunk: %operator<<__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %operator>>__carbon_thunk.type: type = fn_type @operator>>__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator>>__carbon_thunk: %operator>>__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %operator+=__carbon_thunk.type: type = fn_type @operator+=__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator+=__carbon_thunk: %operator+=__carbon_thunk.type = struct_value () [concrete]
@@ -872,8 +872,8 @@ fn F() {
 // CHECK:STDOUT:   %operator>=__carbon_thunk: %operator>=__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %operator<=__carbon_thunk.type: type = fn_type @operator<=__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator<=__carbon_thunk: %operator<=__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -937,8 +937,8 @@ fn F() {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %operator>>__carbon_thunk.decl: %operator>>__carbon_thunk.type = fn_decl @operator>>__carbon_thunk [concrete = constants.%operator>>__carbon_thunk] {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:   } {
@@ -1237,10 +1237,10 @@ fn F() {
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc22_30.1: ref %C = temporary_storage
 // CHECK:STDOUT:   %.loc22_27.1: %C = bind_value %c1.ref.loc22
-// CHECK:STDOUT:   %impl.elem0.loc22: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_33.1: <bound method> = bound_method %int_3, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_33.1: <bound method> = bound_method %int_3, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_33.2: <bound method> = bound_method %int_3, %specific_fn.loc22 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc22_33.2: <bound method> = bound_method %int_3, %specific_fn.loc22 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22: init %i32 = call %bound_method.loc22_33.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc22_33.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc22_33.2: %i32 = converted %int_3, %.loc22_33.1 [concrete = constants.%int_3.822]
@@ -1263,10 +1263,10 @@ fn F() {
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
 // CHECK:STDOUT:   %.loc23_31.1: ref %C = temporary_storage
 // CHECK:STDOUT:   %.loc23_28.1: %C = bind_value %c1.ref.loc23
-// CHECK:STDOUT:   %impl.elem0.loc23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_34.1: <bound method> = bound_method %int_5, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc23: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_34.1: <bound method> = bound_method %int_5, %impl.elem0.loc23 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc23: <specific function> = specific_function %impl.elem0.loc23, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_34.2: <bound method> = bound_method %int_5, %specific_fn.loc23 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc23_34.2: <bound method> = bound_method %int_5, %specific_fn.loc23 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23: init %i32 = call %bound_method.loc23_34.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc23_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc23_34.2: %i32 = converted %int_5, %.loc23_34.1 [concrete = constants.%int_5.0f6]
@@ -1524,102 +1524,102 @@ fn F() {
 // CHECK:STDOUT:   %.loc43_37.3: bool = value_of_initializer %.loc43_37.2
 // CHECK:STDOUT:   %.loc43_37.4: bool = converted %.loc43_37.2, %.loc43_37.3
 // CHECK:STDOUT:   %less_than_or_equal: bool = bind_name less_than_or_equal, %.loc43_37.4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc35: <bound method> = bound_method %.loc35_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc35: <bound method> = bound_method %.loc35_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc35: <bound method> = bound_method %.loc35_6.3, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc35_6.4: %ptr.d9e = addr_of %.loc35_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc35: init %empty_tuple.type = call %bound_method.loc35(%addr.loc35_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc34: <bound method> = bound_method %.loc34_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc34: <bound method> = bound_method %.loc34_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc34: <bound method> = bound_method %.loc34_6.3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc34_6.4: %ptr.d9e = addr_of %.loc34_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc34: init %empty_tuple.type = call %bound_method.loc34(%addr.loc34_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc33: <bound method> = bound_method %.loc33_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc33: <bound method> = bound_method %.loc33_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc33: <bound method> = bound_method %.loc33_6.3, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc33_6.4: %ptr.d9e = addr_of %.loc33_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc33: init %empty_tuple.type = call %bound_method.loc33(%addr.loc33_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %.loc30_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %.loc30_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc30: <bound method> = bound_method %.loc30_6.3, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc30_6.4: %ptr.d9e = addr_of %.loc30_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc30: init %empty_tuple.type = call %bound_method.loc30(%addr.loc30_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc29: <bound method> = bound_method %.loc29_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc29: <bound method> = bound_method %.loc29_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc29: <bound method> = bound_method %.loc29_6.3, %T.as.Destroy.impl.Op.specific_fn.5
 // CHECK:STDOUT:   %addr.loc29_6.4: %ptr.d9e = addr_of %.loc29_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc29: init %empty_tuple.type = call %bound_method.loc29(%addr.loc29_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc28: <bound method> = bound_method %.loc28_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc28: <bound method> = bound_method %.loc28_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc28: <bound method> = bound_method %.loc28_6.3, %T.as.Destroy.impl.Op.specific_fn.6
 // CHECK:STDOUT:   %addr.loc28_6.4: %ptr.d9e = addr_of %.loc28_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc28: init %empty_tuple.type = call %bound_method.loc28(%addr.loc28_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc27: <bound method> = bound_method %.loc27_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc27: <bound method> = bound_method %.loc27_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc27: <bound method> = bound_method %.loc27_6.3, %T.as.Destroy.impl.Op.specific_fn.7
 // CHECK:STDOUT:   %addr.loc27_6.4: %ptr.d9e = addr_of %.loc27_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc27: init %empty_tuple.type = call %bound_method.loc27(%addr.loc27_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %.loc26_6.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %.loc26_6.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc26: <bound method> = bound_method %.loc26_6.3, %T.as.Destroy.impl.Op.specific_fn.8
 // CHECK:STDOUT:   %addr.loc26_6.4: %ptr.d9e = addr_of %.loc26_6.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc26: init %empty_tuple.type = call %bound_method.loc26(%addr.loc26_6.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %.loc23_31.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %.loc23_31.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc23_31: <bound method> = bound_method %.loc23_31.3, %T.as.Destroy.impl.Op.specific_fn.9
 // CHECK:STDOUT:   %addr.loc23_31.3: %ptr.d9e = addr_of %.loc23_31.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23_31(%addr.loc23_31.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc22: <bound method> = bound_method %.loc22_30.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc22: <bound method> = bound_method %.loc22_30.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc22_30: <bound method> = bound_method %.loc22_30.3, %T.as.Destroy.impl.Op.specific_fn.10
 // CHECK:STDOUT:   %addr.loc22_30.3: %ptr.d9e = addr_of %.loc22_30.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc22: init %empty_tuple.type = call %bound_method.loc22_30(%addr.loc22_30.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc21: <bound method> = bound_method %.loc21_31.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc21: <bound method> = bound_method %.loc21_31.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc21: <bound method> = bound_method %.loc21_31.3, %T.as.Destroy.impl.Op.specific_fn.11
 // CHECK:STDOUT:   %addr.loc21_31.4: %ptr.d9e = addr_of %.loc21_31.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc21: init %empty_tuple.type = call %bound_method.loc21(%addr.loc21_31.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %.loc20_30.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %.loc20_30.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc20: <bound method> = bound_method %.loc20_30.3, %T.as.Destroy.impl.Op.specific_fn.12
 // CHECK:STDOUT:   %addr.loc20_30.4: %ptr.d9e = addr_of %.loc20_30.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc20: init %empty_tuple.type = call %bound_method.loc20(%addr.loc20_30.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %.loc19_31.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %.loc19_31.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc19: <bound method> = bound_method %.loc19_31.3, %T.as.Destroy.impl.Op.specific_fn.13
 // CHECK:STDOUT:   %addr.loc19_31.4: %ptr.d9e = addr_of %.loc19_31.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc19: init %empty_tuple.type = call %bound_method.loc19(%addr.loc19_31.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %.loc16_26.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %.loc16_26.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc16: <bound method> = bound_method %.loc16_26.3, %T.as.Destroy.impl.Op.specific_fn.14
 // CHECK:STDOUT:   %addr.loc16_26.4: %ptr.d9e = addr_of %.loc16_26.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc16: init %empty_tuple.type = call %bound_method.loc16(%addr.loc16_26.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc15: <bound method> = bound_method %.loc15_28.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc15: <bound method> = bound_method %.loc15_28.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc15: <bound method> = bound_method %.loc15_28.3, %T.as.Destroy.impl.Op.specific_fn.15
 // CHECK:STDOUT:   %addr.loc15_28.4: %ptr.d9e = addr_of %.loc15_28.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc15: init %empty_tuple.type = call %bound_method.loc15(%addr.loc15_28.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %.loc14_34.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %.loc14_34.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc14: <bound method> = bound_method %.loc14_34.3, %T.as.Destroy.impl.Op.specific_fn.16
 // CHECK:STDOUT:   %addr.loc14_34.4: %ptr.d9e = addr_of %.loc14_34.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc14: init %empty_tuple.type = call %bound_method.loc14(%addr.loc14_34.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %.loc13_31.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %.loc13_31.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc13: <bound method> = bound_method %.loc13_31.3, %T.as.Destroy.impl.Op.specific_fn.17
 // CHECK:STDOUT:   %addr.loc13_31.4: %ptr.d9e = addr_of %.loc13_31.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc13: init %empty_tuple.type = call %bound_method.loc13(%addr.loc13_31.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_28.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_28.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12: <bound method> = bound_method %.loc12_28.3, %T.as.Destroy.impl.Op.specific_fn.18
 // CHECK:STDOUT:   %addr.loc12_28.4: %ptr.d9e = addr_of %.loc12_28.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc12: init %empty_tuple.type = call %bound_method.loc12(%addr.loc12_28.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %c2.var, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %c2.var, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %c2.var, %T.as.Destroy.impl.Op.specific_fn.19
 // CHECK:STDOUT:   %addr.loc9_3: %ptr.d9e = addr_of %c2.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %c1.var, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %c1.var, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %c1.var, %T.as.Destroy.impl.Op.specific_fn.20
 // CHECK:STDOUT:   %addr.loc8_3: %ptr.d9e = addr_of %c1.var
@@ -1640,8 +1640,8 @@ fn F() {
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %operator+__carbon_thunk.type: type = fn_type @operator+__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator+__carbon_thunk: %operator+__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1763,27 +1763,27 @@ fn F() {
 // CHECK:STDOUT:   %.loc12_22.3: ref %C = temporary %.loc12_22.1, %.loc12_22.2
 // CHECK:STDOUT:   %.loc12_22.4: %C = bind_value %.loc12_22.3
 // CHECK:STDOUT:   %c5: %C = bind_name c5, %.loc12_22.4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_22.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc12: <bound method> = bound_method %.loc12_22.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc12: <bound method> = bound_method %.loc12_22.3, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc12_22.4: %ptr.d9e = addr_of %.loc12_22.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc12: init %empty_tuple.type = call %bound_method.loc12(%addr.loc12_22.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %.loc11_22.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %.loc11_22.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc11: <bound method> = bound_method %.loc11_22.3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc11_22.4: %ptr.d9e = addr_of %.loc11_22.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc11: init %empty_tuple.type = call %bound_method.loc11(%addr.loc11_22.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %.loc10_22.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %.loc10_22.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %.loc10_22.3, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc10_22.4: %ptr.d9e = addr_of %.loc10_22.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10_22.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %.loc9_27.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %.loc9_27.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %.loc9_27.3, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc9_27.2: %ptr.d9e = addr_of %.loc9_27.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9_27.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_27.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_27.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_27.3, %T.as.Destroy.impl.Op.specific_fn.5
 // CHECK:STDOUT:   %addr.loc8_27.2: %ptr.d9e = addr_of %.loc8_27.3
@@ -1805,8 +1805,8 @@ fn F() {
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %operator+__carbon_thunk.type: type = fn_type @operator+__carbon_thunk [concrete]
 // CHECK:STDOUT:   %operator+__carbon_thunk: %operator+__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ac8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.362: %T.as.Destroy.impl.Op.type.ac8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.637: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8d0: %T.as.Destroy.impl.Op.type.637 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1894,17 +1894,17 @@ fn F() {
 // CHECK:STDOUT:   %.loc10_24.3: ref %C = temporary %.loc10_24.1, %.loc10_24.2
 // CHECK:STDOUT:   %.loc10_24.4: %C = bind_value %.loc10_24.3
 // CHECK:STDOUT:   %c3: %C = bind_name c3, %.loc10_24.4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %.loc10_24.3, constants.%T.as.Destroy.impl.Op.362
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %.loc10_24.3, constants.%T.as.Destroy.impl.Op.8d0
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %.loc10_24.3, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10_24.4: %ptr.de2 = addr_of %.loc10_24.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10_24.4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %.loc9_31.3, constants.%T.as.Destroy.impl.Op.362
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %.loc9_31.3, constants.%T.as.Destroy.impl.Op.8d0
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %.loc9_31.3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc9_31.2: %ptr.de2 = addr_of %.loc9_31.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9_31.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_31.3, constants.%T.as.Destroy.impl.Op.362
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_31.3, constants.%T.as.Destroy.impl.Op.8d0
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_31.3, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc8_31.2: %ptr.de2 = addr_of %.loc8_31.3
@@ -1923,8 +1923,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.d9e: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %C__carbon_thunk.type: type = fn_type @C__carbon_thunk [concrete]
 // CHECK:STDOUT:   %C__carbon_thunk: %C__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.21b: %T.as.Destroy.impl.Op.type.1b3 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.140: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%C) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d4e: %T.as.Destroy.impl.Op.type.140 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1991,12 +1991,12 @@ fn F() {
 // CHECK:STDOUT:     %C.ref.loc14: type = name_ref C, imports.%C.decl [concrete = constants.%C]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %c3: %C = bind_name c3, <error> [concrete = <error>]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %.loc9_27.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %.loc9_27.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %.loc9_27.3, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9_27.2: %ptr.d9e = addr_of %.loc9_27.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9_27.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_27.3, constants.%T.as.Destroy.impl.Op.21b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_27.3, constants.%T.as.Destroy.impl.Op.d4e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_27.3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_27.2: %ptr.d9e = addr_of %.loc8_27.3
diff --git a/toolchain/check/testdata/interop/cpp/function/pointer.carbon b/toolchain/check/testdata/interop/cpp/function/pointer.carbon
index 594de248e9e7..8db8a2515d44 100644
--- a/toolchain/check/testdata/interop/cpp/function/pointer.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/pointer.carbon
@@ -198,8 +198,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.5c7: type = ptr_type %S [concrete]
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -237,7 +237,7 @@ fn F() {
 // CHECK:STDOUT:   %s.ref: ref %S = name_ref s, %s
 // CHECK:STDOUT:   %addr.loc9: %ptr.5c7 = addr_of %s.ref
 // CHECK:STDOUT:   %foo.call: init %empty_tuple.type = call %foo.ref(%addr.loc9)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %s.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8: %ptr.5c7 = addr_of %s.var
@@ -258,10 +258,10 @@ fn F() {
 // CHECK:STDOUT:   %ptr.dfe: type = ptr_type %ptr.5c7 [concrete]
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.c07: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.5c7) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.64b: %T.as.Destroy.impl.Op.type.c07 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.3e5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.5c7) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.014: %T.as.Destroy.impl.Op.type.3e5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -313,12 +313,12 @@ fn F() {
 // CHECK:STDOUT:   %p.ref: ref %ptr.5c7 = name_ref p, %p
 // CHECK:STDOUT:   %addr.loc10: %ptr.dfe = addr_of %p.ref
 // CHECK:STDOUT:   %foo.call: init %empty_tuple.type = call %foo.ref(%addr.loc10)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.64b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.014
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %p.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9_3: %ptr.dfe = addr_of %p.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %s.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8: %ptr.5c7 = addr_of %s.var
@@ -338,8 +338,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.ff5: type = ptr_type %const [concrete]
 // CHECK:STDOUT:   %foo.type: type = fn_type @foo [concrete]
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.372: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%const) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.af7: %T.as.Destroy.impl.Op.type.372 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.365: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%const) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.b63: %T.as.Destroy.impl.Op.type.365 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -378,7 +378,7 @@ fn F() {
 // CHECK:STDOUT:   %s.ref: ref %const = name_ref s, %s
 // CHECK:STDOUT:   %addr.loc11: %ptr.ff5 = addr_of %s.ref
 // CHECK:STDOUT:   %foo.call: init %empty_tuple.type = call %foo.ref(%addr.loc11)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.af7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.b63
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %s.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc10: %ptr.ff5 = addr_of %s.var
@@ -520,8 +520,8 @@ fn F() {
 // CHECK:STDOUT:   %pattern_type.7da: type = pattern_type %S [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5c7: type = ptr_type %S [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -553,7 +553,7 @@ fn F() {
 // CHECK:STDOUT:   %foo.ref: <error> = name_ref foo, <error> [concrete = <error>]
 // CHECK:STDOUT:   %s.ref: ref %S = name_ref s, %s
 // CHECK:STDOUT:   %addr.loc16: %ptr.5c7 = addr_of %s.ref
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %s.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8: %ptr.5c7 = addr_of %s.var
diff --git a/toolchain/check/testdata/interop/cpp/function/struct.carbon b/toolchain/check/testdata/interop/cpp/function/struct.carbon
index a16742fe8efb..1a3ea8cb4e45 100644
--- a/toolchain/check/testdata/interop/cpp/function/struct.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/struct.carbon
@@ -555,8 +555,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -593,7 +593,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_14.3: ref %S = value_as_ref %.loc8_14.2
 // CHECK:STDOUT:   %addr.loc8_22: %ptr.5c7 = addr_of %.loc8_14.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.5c7 = addr_of %.loc8_12.4
@@ -610,8 +610,8 @@ fn F() {
 // CHECK:STDOUT:   %foo: %foo.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5c7: type = ptr_type %S [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -642,7 +642,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc24_14.1: ref %S = converted %.loc24_12.1, %.loc24_12.4
 // CHECK:STDOUT:   %.loc24_14.2: %S = bind_value %.loc24_14.1
 // CHECK:STDOUT:   %foo.call: init %empty_tuple.type = call %foo.ref(%.loc24_14.2)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_12.4, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc24_12.4, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc24_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.5c7 = addr_of %.loc24_12.4
@@ -753,8 +753,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2b5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.9b3: %T.as.Destroy.impl.Op.type.2b5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f71: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.677: %T.as.Destroy.impl.Op.type.f71 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -807,12 +807,12 @@ fn F() {
 // CHECK:STDOUT:     %S.ref.loc10: type = name_ref S, imports.%S.decl [concrete = constants.%S]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %S = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.9b3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.677
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10: %ptr.edf = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.9b3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.677
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.edf = addr_of %.loc8_12.4
@@ -832,8 +832,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.17f: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.463: %T.as.Destroy.impl.Op.type.17f = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2d7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.99c: %T.as.Destroy.impl.Op.type.2d7 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -881,7 +881,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_17.3: ref %S = value_as_ref %.loc8_17.2
 // CHECK:STDOUT:   %addr.loc8_31: %ptr.887 = addr_of %.loc8_17.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_31)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%T.as.Destroy.impl.Op.463
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%T.as.Destroy.impl.Op.99c
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_15.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.887 = addr_of %.loc8_15.4
@@ -903,11 +903,11 @@ fn F() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cff: type = pattern_type %O [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%O) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2df: %T.as.Destroy.impl.Op.type.1b8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a33: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%O) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.b71: %T.as.Destroy.impl.Op.type.a33 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.820: type = ptr_type %O [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.23f: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.952: %T.as.Destroy.impl.Op.type.23f = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.58a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.04e: %T.as.Destroy.impl.Op.type.58a = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -956,12 +956,12 @@ fn F() {
 // CHECK:STDOUT:     %O.ref.loc9: type = name_ref O, imports.%O.decl [concrete = constants.%O]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %O = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.2df
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.b71
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9: %ptr.820 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.952
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.04e
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.149 = addr_of %.loc8_12.4
@@ -983,8 +983,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1026,7 +1026,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc9_14.3: ref %S = value_as_ref %.loc9_14.2
 // CHECK:STDOUT:   %addr.loc9_22: %ptr.5c7 = addr_of %.loc9_14.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc9_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_12.4, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_12.4, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc9_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc9_12: %ptr.5c7 = addr_of %.loc9_12.4
@@ -1048,8 +1048,8 @@ fn F() {
 // CHECK:STDOUT:   %S.val: %S = struct_value () [concrete]
 // CHECK:STDOUT:   %S.bar.type: type = fn_type @S.bar [concrete]
 // CHECK:STDOUT:   %S.bar: %S.bar.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1091,7 +1091,7 @@ fn F() {
 // CHECK:STDOUT:   %S.ref.loc9: type = name_ref S, imports.%S.decl [concrete = constants.%S]
 // CHECK:STDOUT:   %bar.ref: %S.bar.type = name_ref bar, imports.%S.bar.decl [concrete = constants.%S.bar]
 // CHECK:STDOUT:   %S.bar.call: init %empty_tuple.type = call %bar.ref()
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.5c7 = addr_of %.loc8_12.4
@@ -1175,8 +1175,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.5c7: type = ptr_type %S [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.642: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ab5: %T.as.Destroy.impl.Op.type.642 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f1d: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%S) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.777: %T.as.Destroy.impl.Op.type.f1d = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1205,7 +1205,7 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_11.1)
 // CHECK:STDOUT:   %.loc8_11.2: init %S = in_place_init %foo__carbon_thunk.call, %.loc8_11.1
 // CHECK:STDOUT:   %.loc8_11.3: ref %S = temporary %.loc8_11.1, %.loc8_11.2
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.ab5
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.777
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11.2: %ptr.5c7 = addr_of %.loc8_11.3
diff --git a/toolchain/check/testdata/interop/cpp/function/union.carbon b/toolchain/check/testdata/interop/cpp/function/union.carbon
index 1158443a329e..c102e6806f78 100644
--- a/toolchain/check/testdata/interop/cpp/function/union.carbon
+++ b/toolchain/check/testdata/interop/cpp/function/union.carbon
@@ -552,8 +552,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %U.val: %U = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0b7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2fa: %T.as.Destroy.impl.Op.type.0b7 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.3b9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d78: %T.as.Destroy.impl.Op.type.3b9 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -590,7 +590,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_14.3: ref %U = value_as_ref %.loc8_14.2
 // CHECK:STDOUT:   %addr.loc8_22: %ptr.86f = addr_of %.loc8_14.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.2fa
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.d78
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.86f = addr_of %.loc8_12.4
@@ -701,8 +701,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %U.val: %U = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2e1: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5d: %T.as.Destroy.impl.Op.type.2e1 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ebf: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e62: %T.as.Destroy.impl.Op.type.ebf = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -755,12 +755,12 @@ fn F() {
 // CHECK:STDOUT:     %U.ref.loc10: type = name_ref U, imports.%U.decl [concrete = constants.%U]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %U = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.d5d
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.e62
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10: %ptr.87e = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.d5d
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.e62
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.87e = addr_of %.loc8_12.4
@@ -780,8 +780,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %U.val: %U = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ee1: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.28c: %T.as.Destroy.impl.Op.type.ee1 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.fbc: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d28: %T.as.Destroy.impl.Op.type.fbc = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -829,7 +829,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc8_17.3: ref %U = value_as_ref %.loc8_17.2
 // CHECK:STDOUT:   %addr.loc8_31: %ptr.8c1 = addr_of %.loc8_17.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_31)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%T.as.Destroy.impl.Op.28c
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_15.4, constants.%T.as.Destroy.impl.Op.d28
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_15.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.8c1 = addr_of %.loc8_15.4
@@ -851,11 +851,11 @@ fn F() {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %U.val: %U = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cff: type = pattern_type %O [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.1b8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%O) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2df: %T.as.Destroy.impl.Op.type.1b8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a33: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%O) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.b71: %T.as.Destroy.impl.Op.type.a33 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.820: type = ptr_type %O [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.8f9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f3b: %T.as.Destroy.impl.Op.type.8f9 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.b92: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.638: %T.as.Destroy.impl.Op.type.b92 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -904,12 +904,12 @@ fn F() {
 // CHECK:STDOUT:     %O.ref.loc9: type = name_ref O, imports.%O.decl [concrete = constants.%O]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %O = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.2df
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.b71
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9: %ptr.820 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.f3b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.638
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.a6c = addr_of %.loc8_12.4
@@ -931,8 +931,8 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
 // CHECK:STDOUT:   %U.val: %U = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0b7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2fa: %T.as.Destroy.impl.Op.type.0b7 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.3b9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d78: %T.as.Destroy.impl.Op.type.3b9 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -974,7 +974,7 @@ fn F() {
 // CHECK:STDOUT:   %.loc9_14.3: ref %U = value_as_ref %.loc9_14.2
 // CHECK:STDOUT:   %addr.loc9_22: %ptr.86f = addr_of %.loc9_14.3
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc9_22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_12.4, constants.%T.as.Destroy.impl.Op.2fa
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc9_12.4, constants.%T.as.Destroy.impl.Op.d78
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc9_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc9_12: %ptr.86f = addr_of %.loc9_12.4
@@ -996,8 +996,8 @@ fn F() {
 // CHECK:STDOUT:   %U.val: %U = struct_value () [concrete]
 // CHECK:STDOUT:   %U.bar.type: type = fn_type @U.bar [concrete]
 // CHECK:STDOUT:   %U.bar: %U.bar.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0b7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2fa: %T.as.Destroy.impl.Op.type.0b7 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.3b9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d78: %T.as.Destroy.impl.Op.type.3b9 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1039,7 +1039,7 @@ fn F() {
 // CHECK:STDOUT:   %U.ref.loc9: type = name_ref U, imports.%U.decl [concrete = constants.%U]
 // CHECK:STDOUT:   %bar.ref: %U.bar.type = name_ref bar, imports.%U.bar.decl [concrete = constants.%U.bar]
 // CHECK:STDOUT:   %U.bar.call: init %empty_tuple.type = call %bar.ref()
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.2fa
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_12.4, constants.%T.as.Destroy.impl.Op.d78
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_12.4, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_12: %ptr.86f = addr_of %.loc8_12.4
@@ -1123,8 +1123,8 @@ fn F() {
 // CHECK:STDOUT:   %ptr.86f: type = ptr_type %U [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0b7: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.2fa: %T.as.Destroy.impl.Op.type.0b7 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.3b9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%U) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d78: %T.as.Destroy.impl.Op.type.3b9 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1153,7 +1153,7 @@ fn F() {
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_11.1)
 // CHECK:STDOUT:   %.loc8_11.2: init %U = in_place_init %foo__carbon_thunk.call, %.loc8_11.1
 // CHECK:STDOUT:   %.loc8_11.3: ref %U = temporary %.loc8_11.1, %.loc8_11.2
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.2fa
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.d78
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11.2: %ptr.86f = addr_of %.loc8_11.3
diff --git a/toolchain/check/testdata/interop/cpp/import.carbon b/toolchain/check/testdata/interop/cpp/import.carbon
index 90be58289dea..5e7aba039245 100644
--- a/toolchain/check/testdata/interop/cpp/import.carbon
+++ b/toolchain/check/testdata/interop/cpp/import.carbon
@@ -48,47 +48,47 @@ fn F() {
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(%int_16) [concrete]
 // CHECK:STDOUT:   %int_8.b85: Core.IntLiteral = int_value 8 [concrete]
-// CHECK:STDOUT:   %As.type.f58: type = facet_type <@As, @As(%i16)> [concrete]
+// CHECK:STDOUT:   %As.type.afd: type = facet_type <@As, @As(%i16)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.8b6: type = fn_type @As.Convert, @As(%i16) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.6c8: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.1ee: %Core.IntLiteral.as.As.impl.Convert.type.6c8 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.ef2: <witness> = impl_witness imports.%As.impl_witness_table.a72, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.fee: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.dc5: %Core.IntLiteral.as.As.impl.Convert.type.fee = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.f58 = facet_value Core.IntLiteral, (%As.impl_witness.ef2) [concrete]
-// CHECK:STDOUT:   %.026: type = fn_type_with_self_type %As.Convert.type.8b6, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.dc5 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.dc5, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.2ac: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.128: %Core.IntLiteral.as.As.impl.Convert.type.2ac = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.97f: <witness> = impl_witness imports.%As.impl_witness_table.ae5, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.c2a: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_16) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.9b9: %Core.IntLiteral.as.As.impl.Convert.type.c2a = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.afd = facet_value Core.IntLiteral, (%As.impl_witness.97f) [concrete]
+// CHECK:STDOUT:   %.ed4: type = fn_type_with_self_type %As.Convert.type.8b6, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.9b9 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.9b9, @Core.IntLiteral.as.As.impl.Convert(%int_16) [concrete]
+// CHECK:STDOUT:   %bound_method.1a0: <bound method> = bound_method %int_8.b85, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_8.892: %i16 = int_value 8 [concrete]
 // CHECK:STDOUT:   %foo_int.type: type = fn_type @foo_int [concrete]
 // CHECK:STDOUT:   %foo_int: %foo_int.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %int_9.988: Core.IntLiteral = int_value 9 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.9ba: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.cf3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.6da: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e34: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e36, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.ed5 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.9ba = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.e34) [concrete]
-// CHECK:STDOUT:   %.d6a: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.16d, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.8e3: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.ed2: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ba4, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.5a7 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.cf3 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed2) [concrete]
+// CHECK:STDOUT:   %.2c2: type = fn_type_with_self_type %ImplicitAs.Convert.type.6da, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.3e2: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_9.114: %i32 = int_value 9 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.FooShort: %foo_short.type = import_ref Main//api, FooShort, loaded [concrete = constants.%foo_short]
 // CHECK:STDOUT:   %Main.FooInt: %foo_int.type = import_ref Main//api, FooInt, loaded [concrete = constants.%foo_int]
-// CHECK:STDOUT:   %Core.import_ref.a86c: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0b2) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6d7)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e36 = impl_witness_table (%Core.import_ref.a86c), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.ea5: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.6c8) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.1ee)]
-// CHECK:STDOUT:   %As.impl_witness_table.a72 = impl_witness_table (%Core.import_ref.ea5), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.7bb: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.8a0) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1d6)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ba4 = impl_witness_table (%Core.import_ref.7bb), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.49e: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.2ac) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.128)]
+// CHECK:STDOUT:   %As.impl_witness_table.ae5 = impl_witness_table (%Core.import_ref.49e), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -97,20 +97,20 @@ fn F() {
 // CHECK:STDOUT:   %int_8: Core.IntLiteral = int_value 8 [concrete = constants.%int_8.b85]
 // CHECK:STDOUT:   %int_16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
 // CHECK:STDOUT:   %i16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
-// CHECK:STDOUT:   %impl.elem0.loc10: %.026 = impl_witness_access constants.%As.impl_witness.ef2, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.dc5]
+// CHECK:STDOUT:   %impl.elem0.loc10: %.ed4 = impl_witness_access constants.%As.impl_witness.97f, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.9b9]
 // CHECK:STDOUT:   %bound_method.loc10_14.1: <bound method> = bound_method %int_8, %impl.elem0.loc10 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc10: <specific function> = specific_function %impl.elem0.loc10, @Core.IntLiteral.as.As.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_14.2: <bound method> = bound_method %int_8, %specific_fn.loc10 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc10_14.2: <bound method> = bound_method %int_8, %specific_fn.loc10 [concrete = constants.%bound_method.1a0]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call: init %i16 = call %bound_method.loc10_14.2(%int_8) [concrete = constants.%int_8.892]
 // CHECK:STDOUT:   %.loc10_14.1: %i16 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call [concrete = constants.%int_8.892]
 // CHECK:STDOUT:   %.loc10_14.2: %i16 = converted %int_8, %.loc10_14.1 [concrete = constants.%int_8.892]
 // CHECK:STDOUT:   %foo_short.call: init %empty_tuple.type = call %FooShort.ref(%.loc10_14.2)
 // CHECK:STDOUT:   %FooInt.ref: %foo_int.type = name_ref FooInt, imports.%Main.FooInt [concrete = constants.%foo_int]
 // CHECK:STDOUT:   %int_9: Core.IntLiteral = int_value 9 [concrete = constants.%int_9.988]
-// CHECK:STDOUT:   %impl.elem0.loc11: %.d6a = impl_witness_access constants.%ImplicitAs.impl_witness.e34, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.16d]
+// CHECK:STDOUT:   %impl.elem0.loc11: %.2c2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed2, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.7c1]
 // CHECK:STDOUT:   %bound_method.loc11_10.1: <bound method> = bound_method %int_9, %impl.elem0.loc11 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc11: <specific function> = specific_function %impl.elem0.loc11, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc11_10.2: <bound method> = bound_method %int_9, %specific_fn.loc11 [concrete = constants.%bound_method.8e3]
+// CHECK:STDOUT:   %bound_method.loc11_10.2: <bound method> = bound_method %int_9, %specific_fn.loc11 [concrete = constants.%bound_method.3e2]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc11_10.2(%int_9) [concrete = constants.%int_9.114]
 // CHECK:STDOUT:   %.loc11_10.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_9.114]
 // CHECK:STDOUT:   %.loc11_10.2: %i32 = converted %int_9, %.loc11_10.1 [concrete = constants.%int_9.114]
diff --git a/toolchain/check/testdata/interop/cpp/namespace.carbon b/toolchain/check/testdata/interop/cpp/namespace.carbon
index 330d474be8c3..8880e0e3f559 100644
--- a/toolchain/check/testdata/interop/cpp/namespace.carbon
+++ b/toolchain/check/testdata/interop/cpp/namespace.carbon
@@ -357,8 +357,8 @@ fn Use(y: Cpp.Y) -> i32 {
 // CHECK:STDOUT:   %ptr.13d: type = ptr_type %X [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk.type: type = fn_type @foo__carbon_thunk [concrete]
 // CHECK:STDOUT:   %foo__carbon_thunk: %foo__carbon_thunk.type = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.0e5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%X) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.cbf: %T.as.Destroy.impl.Op.type.0e5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ae2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%X) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.128: %T.as.Destroy.impl.Op.type.ae2 = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -387,7 +387,7 @@ fn Use(y: Cpp.Y) -> i32 {
 // CHECK:STDOUT:   %foo__carbon_thunk.call: init %empty_tuple.type = call imports.%foo__carbon_thunk.decl(%addr.loc8_11.1)
 // CHECK:STDOUT:   %.loc8_11.2: init %X = in_place_init %foo__carbon_thunk.call, %.loc8_11.1
 // CHECK:STDOUT:   %.loc8_11.3: ref %X = temporary %.loc8_11.1, %.loc8_11.2
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.cbf
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc8_11.3, constants.%T.as.Destroy.impl.Op.128
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc8_11.3, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8_11.2: %ptr.13d = addr_of %.loc8_11.3
diff --git a/toolchain/check/testdata/interop/cpp/typedef.carbon b/toolchain/check/testdata/interop/cpp/typedef.carbon
index 476ef8b2bb97..2aed6d35768d 100644
--- a/toolchain/check/testdata/interop/cpp/typedef.carbon
+++ b/toolchain/check/testdata/interop/cpp/typedef.carbon
@@ -57,27 +57,27 @@ fn H(var c: Cpp.C, var d: Cpp.D) {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_42.20e, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -86,8 +86,8 @@ fn H(var c: Cpp.C, var d: Cpp.D) {
 // CHECK:STDOUT:     .bar = @F.%i32.1
 // CHECK:STDOUT:     import Cpp//...
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @F() {
@@ -98,7 +98,7 @@ fn H(var c: Cpp.C, var d: Cpp.D) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %n.var: ref %i32 = var %n.var_patt
 // CHECK:STDOUT:   %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42.20e]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc8_3.1: <bound method> = bound_method %int_42, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_3.2: <bound method> = bound_method %int_42, %specific_fn [concrete = constants.%bound_method]
@@ -126,12 +126,12 @@ fn H(var c: Cpp.C, var d: Cpp.D) {
 // CHECK:STDOUT:     %ptr: type = ptr_type %bar.ref [concrete = constants.%ptr.235]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %p: ref %ptr.235 = bind_name p, %p.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.649
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.fad
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %p.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc10_3: %ptr.5d5 = addr_of %p.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10_3)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.715
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.054
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8_3.3: <bound method> = bound_method %n.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc8: %ptr.235 = addr_of %n.var
@@ -146,8 +146,8 @@ fn H(var c: Cpp.C, var d: Cpp.D) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %ptr.d9e: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.a31: type = pattern_type %ptr.d9e [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.cb8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.d9e) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8e3: %T.as.Destroy.impl.Op.type.cb8 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.899: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.d9e) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.6aa: %T.as.Destroy.impl.Op.type.899 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.01d: type = ptr_type %ptr.d9e [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -190,12 +190,12 @@ fn H(var c: Cpp.C, var d: Cpp.D) {
 // CHECK:STDOUT:     %ptr.loc10: type = ptr_type %C.ref.loc10 [concrete = constants.%ptr.d9e]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %pc: ref %ptr.d9e = bind_name pc, %pc.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %pc.var, constants.%T.as.Destroy.impl.Op.8e3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %pc.var, constants.%T.as.Destroy.impl.Op.6aa
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %pc.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10_3: %ptr.01d = addr_of %pc.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %pd.var, constants.%T.as.Destroy.impl.Op.8e3
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %pd.var, constants.%T.as.Destroy.impl.Op.6aa
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %pd.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc9_3: %ptr.01d = addr_of %pd.var
diff --git a/toolchain/check/testdata/let/compile_time_bindings.carbon b/toolchain/check/testdata/let/compile_time_bindings.carbon
index 8f25d2d999e9..aba0930c39e2 100644
--- a/toolchain/check/testdata/let/compile_time_bindings.carbon
+++ b/toolchain/check/testdata/let/compile_time_bindings.carbon
@@ -375,7 +375,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %tuple.7e4: %tuple.type.2d5 = tuple_value (%empty_tuple, %empty_tuple, %empty_tuple) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -391,20 +391,20 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %tuple.f41: %tuple.type.9fb = tuple_value (%empty_tuple) [concrete]
 // CHECK:STDOUT:   %tuple.elem0.eaf: %empty_tuple.type = tuple_access %c, element0 [symbolic]
 // CHECK:STDOUT:   %tuple.elem1: %empty_tuple.type = tuple_access %c, element1 [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.073: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.2d5) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.dce: %T.as.Destroy.impl.Op.type.073 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.234: <specific function> = specific_function %T.as.Destroy.impl.Op.dce, @T.as.Destroy.impl.Op(%tuple.type.2d5) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.4e8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.bcd) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.166: %T.as.Destroy.impl.Op.type.4e8 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.48a: <specific function> = specific_function %T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(%tuple.type.bcd) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.23e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.9fb) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f19: %T.as.Destroy.impl.Op.type.23e = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.8bc: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.2d5) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.f13: %T.as.Destroy.impl.Op.type.8bc = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.77d: <specific function> = specific_function %T.as.Destroy.impl.Op.f13, @T.as.Destroy.impl.Op(%tuple.type.2d5) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2ab: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.bcd) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.38b: %T.as.Destroy.impl.Op.type.2ab = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d2f: <specific function> = specific_function %T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(%tuple.type.bcd) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.aa5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.9fb) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.735: %T.as.Destroy.impl.Op.type.aa5 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.652: type = ptr_type %tuple.type.9fb [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d2b: <specific function> = specific_function %T.as.Destroy.impl.Op.f19, @T.as.Destroy.impl.Op(%tuple.type.9fb) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.754: <specific function> = specific_function %T.as.Destroy.impl.Op.735, @T.as.Destroy.impl.Op(%tuple.type.9fb) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.393: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.900: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -496,7 +496,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -632,23 +632,23 @@ impl i32 as Empty {
 // CHECK:STDOUT:       %.loc16_24.6: type = converted %.loc16_24.2, constants.%tuple.type.2d5 [concrete = constants.%tuple.type.2d5]
 // CHECK:STDOUT:     }
 // CHECK:STDOUT:     %d1: ref %tuple.type.2d5 = bind_name d1, %d1.var
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %d1.var, constants.%T.as.Destroy.impl.Op.dce
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.dce, @T.as.Destroy.impl.Op(constants.%tuple.type.2d5) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.234]
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %d1.var, constants.%T.as.Destroy.impl.Op.f13
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f13, @T.as.Destroy.impl.Op(constants.%tuple.type.2d5) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.77d]
 // CHECK:STDOUT:     %bound_method.loc16: <bound method> = bound_method %d1.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:     %addr.loc16: %ptr.7fe = addr_of %d1.var
 // CHECK:STDOUT:     %T.as.Destroy.impl.Op.call.loc16: init %empty_tuple.type = call %bound_method.loc16(%addr.loc16)
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc15: <bound method> = bound_method %c1.var, constants.%T.as.Destroy.impl.Op.166
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(constants.%tuple.type.bcd) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.48a]
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc15: <bound method> = bound_method %c1.var, constants.%T.as.Destroy.impl.Op.38b
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(constants.%tuple.type.bcd) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d2f]
 // CHECK:STDOUT:     %bound_method.loc15: <bound method> = bound_method %c1.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:     %addr.loc15: %ptr.709 = addr_of %c1.var
 // CHECK:STDOUT:     %T.as.Destroy.impl.Op.call.loc15: init %empty_tuple.type = call %bound_method.loc15(%addr.loc15)
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %b1.var, constants.%T.as.Destroy.impl.Op.f19
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.f19, @T.as.Destroy.impl.Op(constants.%tuple.type.9fb) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d2b]
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %b1.var, constants.%T.as.Destroy.impl.Op.735
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.735, @T.as.Destroy.impl.Op(constants.%tuple.type.9fb) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.754]
 // CHECK:STDOUT:     %bound_method.loc14: <bound method> = bound_method %b1.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:     %addr.loc14: %ptr.652 = addr_of %b1.var
 // CHECK:STDOUT:     %T.as.Destroy.impl.Op.call.loc14: init %empty_tuple.type = call %bound_method.loc14(%addr.loc14)
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %a1.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.bound.loc13: <bound method> = bound_method %a1.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:     %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:     %bound_method.loc13: <bound method> = bound_method %a1.var, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:     %addr.loc13: %ptr.843 = addr_of %a1.var
 // CHECK:STDOUT:     %T.as.Destroy.impl.Op.call.loc13: init %empty_tuple.type = call %bound_method.loc13(%addr.loc13)
@@ -764,18 +764,18 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -789,8 +789,8 @@ impl i32 as Empty {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -821,7 +821,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:     %int_32.loc5: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc5: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc5_20.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc5_20.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -849,23 +849,23 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -878,8 +878,8 @@ impl i32 as Empty {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -914,10 +914,10 @@ impl i32 as Empty {
 // CHECK:STDOUT:     %int_32.loc6: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc6: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_22.1: <bound method> = bound_method %int_0, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc6: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_22.1: <bound method> = bound_method %int_0, %impl.elem0.loc6 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc6: <specific function> = specific_function %impl.elem0.loc6, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_22.2: <bound method> = bound_method %int_0, %specific_fn.loc6 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc6_22.2: <bound method> = bound_method %int_0, %specific_fn.loc6 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6: init %i32 = call %bound_method.loc6_22.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_22.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_22.2: %i32 = converted %int_0, %.loc6_22.1 [concrete = constants.%int_0.6a9]
@@ -927,10 +927,10 @@ impl i32 as Empty {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.else:
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc9: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_11.1: <bound method> = bound_method %int_1, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc9: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_11.1: <bound method> = bound_method %int_1, %impl.elem0.loc9 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc9: <specific function> = specific_function %impl.elem0.loc9, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_11.2: <bound method> = bound_method %int_1, %specific_fn.loc9 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc9_11.2: <bound method> = bound_method %int_1, %specific_fn.loc9 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9: init %i32 = call %bound_method.loc9_11.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc9_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc9_11.2: %i32 = converted %int_1, %.loc9_11.1 [concrete = constants.%int_1.5d2]
@@ -952,7 +952,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @I [symbolic]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %Self.as_type, (%I.lookup_impl_witness) [symbolic]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.ca5: type = pattern_type %impl.elem0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.c41: type = pattern_type %impl.elem0 [symbolic]
 // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
 // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc1: %I.assoc_type = assoc_entity element1, @I.%I.F.decl [concrete]
@@ -984,8 +984,8 @@ impl i32 as Empty {
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
-// CHECK:STDOUT:     %return.patt: @I.F.%pattern_type (%pattern_type.ca5) = return_slot_pattern [concrete]
-// CHECK:STDOUT:     %return.param_patt: @I.F.%pattern_type (%pattern_type.ca5) = out_param_pattern %return.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %return.patt: @I.F.%pattern_type (%pattern_type.c41) = return_slot_pattern [concrete]
+// CHECK:STDOUT:     %return.param_patt: @I.F.%pattern_type (%pattern_type.c41) = out_param_pattern %return.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %impl.elem0.loc6_13.2: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc6_13.1 (constants.%impl.elem0)]
 // CHECK:STDOUT:     %T.ref: type = name_ref T, %impl.elem0.loc6_13.2 [symbolic = %impl.elem0.loc6_13.1 (constants.%impl.elem0)]
@@ -1011,7 +1011,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %Self, @I [symbolic = %I.lookup_impl_witness (constants.%I.lookup_impl_witness)]
 // CHECK:STDOUT:   %impl.elem0.loc6_13.1: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc6_13.1 (constants.%impl.elem0)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc6_13.1 [symbolic = %pattern_type (constants.%pattern_type.ca5)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %impl.elem0.loc6_13.1 [symbolic = %pattern_type (constants.%pattern_type.c41)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() -> @I.F.%impl.elem0.loc6_13.1 (%impl.elem0);
 // CHECK:STDOUT: }
@@ -1024,7 +1024,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %I.lookup_impl_witness => constants.%I.lookup_impl_witness
 // CHECK:STDOUT:   %impl.elem0.loc6_13.1 => constants.%impl.elem0
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.ca5
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c41
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: --- fail_return_in_class.carbon
@@ -1176,7 +1176,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
-// CHECK:STDOUT:   %Self.193: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %Self.b05: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
 // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
@@ -1187,18 +1187,18 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -1212,8 +1212,8 @@ impl i32 as Empty {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1233,7 +1233,7 @@ impl i32 as Empty {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @Empty {
-// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.193]
+// CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b05]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1250,7 +1250,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:     %int_32.loc11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc11_20.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc11_20.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/let/fail_duplicate_decl.carbon b/toolchain/check/testdata/let/fail_duplicate_decl.carbon
index 78278c77e613..4dcb9ca57dce 100644
--- a/toolchain/check/testdata/let/fail_duplicate_decl.carbon
+++ b/toolchain/check/testdata/let/fail_duplicate_decl.carbon
@@ -37,23 +37,23 @@ fn F() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -66,8 +66,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -89,10 +89,10 @@ fn F() {
 // CHECK:STDOUT:     %int_32.loc16: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc16: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc16: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc16: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %impl.elem0.loc16, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_16.2: <bound method> = bound_method %int_1, %specific_fn.loc16 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc16_16.2: <bound method> = bound_method %int_1, %specific_fn.loc16 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16: init %i32 = call %bound_method.loc16_16.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16_16.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16_16.2: %i32 = converted %int_1, %.loc16_16.1 [concrete = constants.%int_1.5d2]
@@ -105,10 +105,10 @@ fn F() {
 // CHECK:STDOUT:     %int_32.loc24: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc24: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc24: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc24_16.1: <bound method> = bound_method %int_2, %impl.elem0.loc24 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc24: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc24_16.1: <bound method> = bound_method %int_2, %impl.elem0.loc24 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc24: <specific function> = specific_function %impl.elem0.loc24, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc24_16.2: <bound method> = bound_method %int_2, %specific_fn.loc24 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc24_16.2: <bound method> = bound_method %int_2, %specific_fn.loc24 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc24: init %i32 = call %bound_method.loc24_16.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc24_16.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc24 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc24_16.2: %i32 = converted %int_2, %.loc24_16.1 [concrete = constants.%int_2.ef8]
diff --git a/toolchain/check/testdata/let/fail_generic.carbon b/toolchain/check/testdata/let/fail_generic.carbon
index 7ae33b24e078..97a4d6be4f9c 100644
--- a/toolchain/check/testdata/let/fail_generic.carbon
+++ b/toolchain/check/testdata/let/fail_generic.carbon
@@ -54,7 +54,7 @@ fn F(a: i32) -> i32 {
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.2751f3.1: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%Dest) [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.42ebb8.1: %ImplicitAs.Convert.type.2751f3.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0d85.1: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.d628ce.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.type.dc4d8f.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0d85.2: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.9f5e6b.2: %ImplicitAs.assoc_type.ca0d85.2 = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
 // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0d85.1 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
@@ -113,7 +113,7 @@ fn F(a: i32) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5]
 // CHECK:STDOUT:   %T.ref: type = name_ref T, %T [symbolic = constants.%T]
-// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T)> [symbolic = constants.%ImplicitAs.type.d628ce.2]
+// CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T)> [symbolic = constants.%ImplicitAs.type.dc4d8f.2]
 // CHECK:STDOUT:   %.loc25_14.1: %ImplicitAs.assoc_type.ca0d85.2 = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%T) [symbolic = constants.%assoc0.9f5e6b.2]
 // CHECK:STDOUT:   %Convert.ref: %ImplicitAs.assoc_type.ca0d85.2 = name_ref Convert, %.loc25_14.1 [symbolic = constants.%assoc0.9f5e6b.2]
 // CHECK:STDOUT:   %.loc25_14.2: %T = converted %int_5, <error> [concrete = <error>]
diff --git a/toolchain/check/testdata/let/fail_modifiers.carbon b/toolchain/check/testdata/let/fail_modifiers.carbon
index 5d6f1fa4343e..d816f06b10f5 100644
--- a/toolchain/check/testdata/let/fail_modifiers.carbon
+++ b/toolchain/check/testdata/let/fail_modifiers.carbon
@@ -99,18 +99,18 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -124,8 +124,8 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -148,7 +148,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc19: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc19: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc19: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc19: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc19_24.1: <bound method> = bound_method @__global_init.%int_1.loc19, %impl.elem0.loc19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc19: <specific function> = specific_function %impl.elem0.loc19, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc19_24.2: <bound method> = bound_method @__global_init.%int_1.loc19, %specific_fn.loc19 [concrete = constants.%bound_method]
@@ -163,7 +163,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc25: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc25: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc25_22.1: <bound method> = bound_method @__global_init.%int_1.loc25, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc25: <specific function> = specific_function %impl.elem0.loc25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc25_22.2: <bound method> = bound_method @__global_init.%int_1.loc25, %specific_fn.loc25 [concrete = constants.%bound_method]
@@ -178,7 +178,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc31: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc31: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc31: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc31: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc31_20.1: <bound method> = bound_method @__global_init.%int_1.loc31, %impl.elem0.loc31 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc31: <specific function> = specific_function %impl.elem0.loc31, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc31_20.2: <bound method> = bound_method @__global_init.%int_1.loc31, %specific_fn.loc31 [concrete = constants.%bound_method]
@@ -193,7 +193,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc37: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc37: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc37: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc37: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc37_22.1: <bound method> = bound_method @__global_init.%int_1.loc37, %impl.elem0.loc37 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc37: <specific function> = specific_function %impl.elem0.loc37, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc37_22.2: <bound method> = bound_method @__global_init.%int_1.loc37, %specific_fn.loc37 [concrete = constants.%bound_method]
@@ -208,7 +208,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc50: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc50: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc50: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc50: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc50_28.1: <bound method> = bound_method @__global_init.%int_1.loc50, %impl.elem0.loc50 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc50: <specific function> = specific_function %impl.elem0.loc50, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc50_28.2: <bound method> = bound_method @__global_init.%int_1.loc50, %specific_fn.loc50 [concrete = constants.%bound_method]
@@ -223,7 +223,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc63: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc63: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc63: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc63: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc63_30.1: <bound method> = bound_method @__global_init.%int_1.loc63, %impl.elem0.loc63 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc63: <specific function> = specific_function %impl.elem0.loc63, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc63_30.2: <bound method> = bound_method @__global_init.%int_1.loc63, %specific_fn.loc63 [concrete = constants.%bound_method]
@@ -238,7 +238,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc76: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc76: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc76: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc76: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc76_32.1: <bound method> = bound_method @__global_init.%int_1.loc76, %impl.elem0.loc76 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc76: <specific function> = specific_function %impl.elem0.loc76, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc76_32.2: <bound method> = bound_method @__global_init.%int_1.loc76, %specific_fn.loc76 [concrete = constants.%bound_method]
@@ -253,7 +253,7 @@ protected protected let i: i32 = 1;
 // CHECK:STDOUT:     %int_32.loc89: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc89: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc89: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc89: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc89_34.1: <bound method> = bound_method @__global_init.%int_1.loc89, %impl.elem0.loc89 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc89: <specific function> = specific_function %impl.elem0.loc89, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc89_34.2: <bound method> = bound_method @__global_init.%int_1.loc89, %specific_fn.loc89 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/let/generic.carbon b/toolchain/check/testdata/let/generic.carbon
index 20962f3ff8cf..70729d934023 100644
--- a/toolchain/check/testdata/let/generic.carbon
+++ b/toolchain/check/testdata/let/generic.carbon
@@ -37,16 +37,16 @@ fn F() {
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.de0: <witness> = lookup_impl_witness %T, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.713: %Destroy.type = facet_value %T, (%Destroy.lookup_impl_witness.de0) [symbolic]
-// CHECK:STDOUT:   %.a63: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.713 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.538: %.a63 = impl_witness_access %Destroy.lookup_impl_witness.de0, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.1af: <specific function> = specific_impl_function %impl.elem0.538, @Destroy.Op(%Destroy.facet.713) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.572: %Destroy.type = facet_value %T, (%Destroy.lookup_impl_witness.de0) [symbolic]
+// CHECK:STDOUT:   %.f8c: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.572 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.796: %.f8c = impl_witness_access %Destroy.lookup_impl_witness.de0, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.127: <specific function> = specific_impl_function %impl.elem0.796, @Destroy.Op(%Destroy.facet.572) [symbolic]
 // CHECK:STDOUT:   %ptr.a13: type = ptr_type %ptr.79f [symbolic]
 // CHECK:STDOUT:   %Destroy.lookup_impl_witness.3af: <witness> = lookup_impl_witness %ptr.79f, @Destroy [symbolic]
-// CHECK:STDOUT:   %Destroy.facet.7d0: %Destroy.type = facet_value %ptr.79f, (%Destroy.lookup_impl_witness.3af) [symbolic]
-// CHECK:STDOUT:   %.ea9: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.7d0 [symbolic]
-// CHECK:STDOUT:   %impl.elem0.63c: %.ea9 = impl_witness_access %Destroy.lookup_impl_witness.3af, element0 [symbolic]
-// CHECK:STDOUT:   %specific_impl_fn.e4a: <specific function> = specific_impl_function %impl.elem0.63c, @Destroy.Op(%Destroy.facet.7d0) [symbolic]
+// CHECK:STDOUT:   %Destroy.facet.a81: %Destroy.type = facet_value %ptr.79f, (%Destroy.lookup_impl_witness.3af) [symbolic]
+// CHECK:STDOUT:   %.dc4: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet.a81 [symbolic]
+// CHECK:STDOUT:   %impl.elem0.5ac: %.dc4 = impl_witness_access %Destroy.lookup_impl_witness.3af, element0 [symbolic]
+// CHECK:STDOUT:   %specific_impl_fn.fb8: <specific function> = specific_impl_function %impl.elem0.5ac, @Destroy.Op(%Destroy.facet.a81) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -100,15 +100,15 @@ fn F() {
 // CHECK:STDOUT:   assign %a.var, %.loc18_14.2
 // CHECK:STDOUT:   %T.ref.loc18: type = name_ref T, %T [symbolic = constants.%T]
 // CHECK:STDOUT:   %a: ref %T = bind_name a, %a.var
-// CHECK:STDOUT:   %impl.elem0.loc18: %.a63 = impl_witness_access constants.%Destroy.lookup_impl_witness.de0, element0 [symbolic = constants.%impl.elem0.538]
+// CHECK:STDOUT:   %impl.elem0.loc18: %.f8c = impl_witness_access constants.%Destroy.lookup_impl_witness.de0, element0 [symbolic = constants.%impl.elem0.796]
 // CHECK:STDOUT:   %bound_method.loc18_3.1: <bound method> = bound_method %a.var, %impl.elem0.loc18
-// CHECK:STDOUT:   %specific_impl_fn.loc18: <specific function> = specific_impl_function %impl.elem0.loc18, @Destroy.Op(constants.%Destroy.facet.713) [symbolic = constants.%specific_impl_fn.1af]
+// CHECK:STDOUT:   %specific_impl_fn.loc18: <specific function> = specific_impl_function %impl.elem0.loc18, @Destroy.Op(constants.%Destroy.facet.572) [symbolic = constants.%specific_impl_fn.127]
 // CHECK:STDOUT:   %bound_method.loc18_3.2: <bound method> = bound_method %a.var, %specific_impl_fn.loc18
 // CHECK:STDOUT:   %addr.loc18: %ptr.79f = addr_of %a.var
 // CHECK:STDOUT:   %.loc18_3: init %empty_tuple.type = call %bound_method.loc18_3.2(%addr.loc18)
-// CHECK:STDOUT:   %impl.elem0.loc17: %.ea9 = impl_witness_access constants.%Destroy.lookup_impl_witness.3af, element0 [symbolic = constants.%impl.elem0.63c]
+// CHECK:STDOUT:   %impl.elem0.loc17: %.dc4 = impl_witness_access constants.%Destroy.lookup_impl_witness.3af, element0 [symbolic = constants.%impl.elem0.5ac]
 // CHECK:STDOUT:   %bound_method.loc17_3.1: <bound method> = bound_method %p.var, %impl.elem0.loc17
-// CHECK:STDOUT:   %specific_impl_fn.loc17: <specific function> = specific_impl_function %impl.elem0.loc17, @Destroy.Op(constants.%Destroy.facet.7d0) [symbolic = constants.%specific_impl_fn.e4a]
+// CHECK:STDOUT:   %specific_impl_fn.loc17: <specific function> = specific_impl_function %impl.elem0.loc17, @Destroy.Op(constants.%Destroy.facet.a81) [symbolic = constants.%specific_impl_fn.fb8]
 // CHECK:STDOUT:   %bound_method.loc17_3.2: <bound method> = bound_method %p.var, %specific_impl_fn.loc17
 // CHECK:STDOUT:   %addr.loc17: %ptr.a13 = addr_of %p.var
 // CHECK:STDOUT:   %.loc17_3: init %empty_tuple.type = call %bound_method.loc17_3.2(%addr.loc17)
diff --git a/toolchain/check/testdata/let/global.carbon b/toolchain/check/testdata/let/global.carbon
index 9efc79d27e4f..130f68c97e61 100644
--- a/toolchain/check/testdata/let/global.carbon
+++ b/toolchain/check/testdata/let/global.carbon
@@ -27,18 +27,18 @@ fn F() -> i32 { return n; }
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
@@ -54,8 +54,8 @@ fn F() -> i32 { return n; }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -72,7 +72,7 @@ fn F() -> i32 { return n; }
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_14.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_14.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/let/shadowed_decl.carbon b/toolchain/check/testdata/let/shadowed_decl.carbon
index 5bbd6697627b..89028370510c 100644
--- a/toolchain/check/testdata/let/shadowed_decl.carbon
+++ b/toolchain/check/testdata/let/shadowed_decl.carbon
@@ -31,18 +31,18 @@ fn F(a: i32) -> i32 {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT: }
@@ -56,8 +56,8 @@ fn F(a: i32) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -95,7 +95,7 @@ fn F(a: i32) -> i32 {
 // CHECK:STDOUT:     %int_32.loc16: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc16: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_16.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_16.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/main_run/return_i32.carbon b/toolchain/check/testdata/main_run/return_i32.carbon
index c26be9107760..c8d5f623605b 100644
--- a/toolchain/check/testdata/main_run/return_i32.carbon
+++ b/toolchain/check/testdata/main_run/return_i32.carbon
@@ -26,18 +26,18 @@ fn Run() -> i32 { return 0; }
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -51,8 +51,8 @@ fn Run() -> i32 { return 0; }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -77,7 +77,7 @@ fn Run() -> i32 { return 0; }
 // CHECK:STDOUT: fn @Run() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc14_27.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc14_27.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/namespace/add_to_import.carbon b/toolchain/check/testdata/namespace/add_to_import.carbon
index b70e110636d5..12135e08e25f 100644
--- a/toolchain/check/testdata/namespace/add_to_import.carbon
+++ b/toolchain/check/testdata/namespace/add_to_import.carbon
@@ -57,18 +57,18 @@ var a: i32 = NS.A();
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -86,8 +86,8 @@ var a: i32 = NS.A();
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -123,7 +123,7 @@ var a: i32 = NS.A();
 // CHECK:STDOUT: fn @A() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc4_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc4_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/namespace/alias.carbon b/toolchain/check/testdata/namespace/alias.carbon
index 19386169acde..e4276ecb8563 100644
--- a/toolchain/check/testdata/namespace/alias.carbon
+++ b/toolchain/check/testdata/namespace/alias.carbon
@@ -37,18 +37,18 @@ fn D() -> i32 { return C(); }
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
@@ -66,8 +66,8 @@ fn D() -> i32 { return C(); }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -120,7 +120,7 @@ fn D() -> i32 { return C(); }
 // CHECK:STDOUT: fn @A() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc19_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc19_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/namespace/fail_decl_in_alias.carbon b/toolchain/check/testdata/namespace/fail_decl_in_alias.carbon
index ed6ce8427c2c..9d4bf2c78c33 100644
--- a/toolchain/check/testdata/namespace/fail_decl_in_alias.carbon
+++ b/toolchain/check/testdata/namespace/fail_decl_in_alias.carbon
@@ -39,18 +39,18 @@ fn ns.A() -> i32 { return 0; }
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -64,8 +64,8 @@ fn ns.A() -> i32 { return 0; }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -92,7 +92,7 @@ fn ns.A() -> i32 { return 0; }
 // CHECK:STDOUT: fn @A() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc27_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc27_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/namespace/fail_not_top_level.carbon b/toolchain/check/testdata/namespace/fail_not_top_level.carbon
index 3d8511a90bb0..19ee5d35f76b 100644
--- a/toolchain/check/testdata/namespace/fail_not_top_level.carbon
+++ b/toolchain/check/testdata/namespace/fail_not_top_level.carbon
@@ -58,8 +58,8 @@ interface I {
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op: %C.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
-// CHECK:STDOUT:   %I.type.733: type = facet_type <@I.loc33> [concrete]
-// CHECK:STDOUT:   %Self.826: %I.type.733 = bind_symbolic_name Self, 0 [symbolic]
+// CHECK:STDOUT:   %I.type.950: type = facet_type <@I.loc33> [concrete]
+// CHECK:STDOUT:   %Self.ce4: %I.type.950 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.type.d37: type = fn_type @I.loc39 [concrete]
 // CHECK:STDOUT:   %I: %I.type.d37 = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -83,11 +83,11 @@ interface I {
 // CHECK:STDOUT:   %Core.import = import Core
 // CHECK:STDOUT:   %F.decl: %F.type.b25 = fn_decl @F.loc15 [concrete = constants.%F.c41] {} {}
 // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
-// CHECK:STDOUT:   %I.decl: type = interface_decl @I.loc33 [concrete = constants.%I.type.733] {} {}
+// CHECK:STDOUT:   %I.decl: type = interface_decl @I.loc33 [concrete = constants.%I.type.950] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: interface @I.loc33 {
-// CHECK:STDOUT:   %Self: %I.type.733 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.826]
+// CHECK:STDOUT:   %Self: %I.type.950 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.ce4]
 // CHECK:STDOUT:   %N: <namespace> = namespace [concrete] {
 // CHECK:STDOUT:     .I = %I.decl
 // CHECK:STDOUT:   }
@@ -153,7 +153,7 @@ interface I {
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @C.as.Destroy.impl.Op(%self.param: %ptr.019) = "no_op";
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @I.loc39(@I.loc33.%Self: %I.type.733) {
+// CHECK:STDOUT: generic fn @I.loc39(@I.loc33.%Self: %I.type.950) {
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn() {
@@ -162,5 +162,5 @@ interface I {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @I.loc39(constants.%Self.826) {}
+// CHECK:STDOUT: specific @I.loc39(constants.%Self.ce4) {}
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/namespace/merging_with_indirections.carbon b/toolchain/check/testdata/namespace/merging_with_indirections.carbon
index 583f3c991a6a..338e1a90ee73 100644
--- a/toolchain/check/testdata/namespace/merging_with_indirections.carbon
+++ b/toolchain/check/testdata/namespace/merging_with_indirections.carbon
@@ -230,7 +230,7 @@ fn Run() {
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %pattern_type.272: type = pattern_type %A [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.90d: <witness> = impl_witness imports.%Destroy.impl_witness_table.8a3 [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.82c: <witness> = impl_witness imports.%Destroy.impl_witness_table.577 [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op.type: type = fn_type @A.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %A.as.Destroy.impl.Op: %A.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.07e: type = ptr_type %A [concrete]
@@ -259,11 +259,11 @@ fn Run() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Other.A: type = import_ref Other//a, A, loaded [concrete = constants.%A]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Other.import_ref.af3: <witness> = import_ref Other//a, loc5_13, loaded [concrete = constants.%Destroy.impl_witness.90d]
+// CHECK:STDOUT:   %Other.import_ref.474: <witness> = import_ref Other//a, loc5_13, loaded [concrete = constants.%Destroy.impl_witness.82c]
 // CHECK:STDOUT:   %Other.import_ref.ea8: type = import_ref Other//a, loc5_13, loaded [concrete = constants.%A]
-// CHECK:STDOUT:   %Other.import_ref.cb9: type = import_ref Other//a, inst22 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %Other.import_ref.788: %A.as.Destroy.impl.Op.type = import_ref Other//a, loc5_13, loaded [concrete = constants.%A.as.Destroy.impl.Op]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.8a3 = impl_witness_table (%Other.import_ref.788), @A.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Other.import_ref.063: type = import_ref Other//a, inst22 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %Other.import_ref.e9d: %A.as.Destroy.impl.Op.type = import_ref Other//a, loc5_13, loaded [concrete = constants.%A.as.Destroy.impl.Op]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.577 = impl_witness_table (%Other.import_ref.e9d), @A.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -277,9 +277,9 @@ fn Run() {
 // CHECK:STDOUT:   %Run.decl: %Run.type = fn_decl @Run [concrete = constants.%Run] {} {}
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Other.import_ref.ea8 as imports.%Other.import_ref.cb9 [from "a.carbon"] {
+// CHECK:STDOUT: impl @A.as.Destroy.impl: imports.%Other.import_ref.ea8 as imports.%Other.import_ref.063 [from "a.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%Other.import_ref.af3
+// CHECK:STDOUT:   witness = imports.%Other.import_ref.474
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @A [from "b.carbon"] {
diff --git a/toolchain/check/testdata/namespace/shadow.carbon b/toolchain/check/testdata/namespace/shadow.carbon
index 5d6ccadbb4f4..cd9851f38106 100644
--- a/toolchain/check/testdata/namespace/shadow.carbon
+++ b/toolchain/check/testdata/namespace/shadow.carbon
@@ -50,25 +50,25 @@ fn N.M.B() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -81,8 +81,8 @@ fn N.M.B() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -132,7 +132,7 @@ fn N.M.B() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %A.var: ref %i32 = var %A.var_patt
 // CHECK:STDOUT:   %int_0.loc26: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc26: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc26: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc26_5.1: <bound method> = bound_method %int_0.loc26, %impl.elem0.loc26 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc26: <specific function> = specific_function %impl.elem0.loc26, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc26_5.2: <bound method> = bound_method %int_0.loc26, %specific_fn.loc26 [concrete = constants.%bound_method]
@@ -146,8 +146,8 @@ fn N.M.B() -> i32 {
 // CHECK:STDOUT:   %A: ref %i32 = bind_name A, %A.var
 // CHECK:STDOUT:   %A.ref.loc29: ref %i32 = name_ref A, %A
 // CHECK:STDOUT:   %.loc29: %i32 = bind_value %A.ref.loc29
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc26_5.1: <bound method> = bound_method %A.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc26_5.1: <bound method> = bound_method %A.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc26_5.3: <bound method> = bound_method %A.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc26_5.1: %ptr.235 = addr_of %A.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc26_5.1: init %empty_tuple.type = call %bound_method.loc26_5.3(%addr.loc26_5.1)
@@ -155,15 +155,15 @@ fn N.M.B() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.else:
 // CHECK:STDOUT:   %int_0.loc31: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc31: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc31: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc31_11.1: <bound method> = bound_method %int_0.loc31, %impl.elem0.loc31 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc31: <specific function> = specific_function %impl.elem0.loc31, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc31_11.2: <bound method> = bound_method %int_0.loc31, %specific_fn.loc31 [concrete = constants.%bound_method]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc31: init %i32 = call %bound_method.loc31_11.2(%int_0.loc31) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc31_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc31 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc31_11.2: %i32 = converted %int_0.loc31, %.loc31_11.1 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc26_5.2: <bound method> = bound_method %A.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc26_5.2: <bound method> = bound_method %A.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc26_5.4: <bound method> = bound_method %A.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc26_5.2: %ptr.235 = addr_of %A.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc26_5.2: init %empty_tuple.type = call %bound_method.loc26_5.4(%addr.loc26_5.2)
diff --git a/toolchain/check/testdata/operators/builtin/and.carbon b/toolchain/check/testdata/operators/builtin/and.carbon
index e4b45277a3dc..58ff975bf06c 100644
--- a/toolchain/check/testdata/operators/builtin/and.carbon
+++ b/toolchain/check/testdata/operators/builtin/and.carbon
@@ -50,14 +50,14 @@ fn PartialConstant(x: bool) {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.393: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.655: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8b7: %T.as.Destroy.impl.Op.type.655 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.900: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.19a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4f7: %T.as.Destroy.impl.Op.type.19a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.bb2: type = ptr_type bool [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.c3f: <specific function> = specific_function %T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.e5c: <specific function> = specific_function %T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete]
 // CHECK:STDOUT:   %PartialConstant.type: type = fn_type @PartialConstant [concrete]
 // CHECK:STDOUT:   %PartialConstant: %PartialConstant.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -325,23 +325,23 @@ fn PartialConstant(x: bool) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !.loc26_7:
 // CHECK:STDOUT:   %d: ref %empty_tuple.type = bind_name d, %d.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method.loc26: <bound method> = bound_method %d.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc26: %ptr.843 = addr_of %d.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc26: init %empty_tuple.type = call %bound_method.loc26(%addr.loc26)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method.loc25: <bound method> = bound_method %c.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc25: %ptr.843 = addr_of %c.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc25: init %empty_tuple.type = call %bound_method.loc25(%addr.loc25)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method.loc24: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc24: %ptr.843 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc24: init %empty_tuple.type = call %bound_method.loc24(%addr.loc24)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c3f]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e5c]
 // CHECK:STDOUT:   %bound_method.loc23: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc23: %ptr.bb2 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23(%addr.loc23)
@@ -391,8 +391,8 @@ fn PartialConstant(x: bool) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !.loc30_7:
 // CHECK:STDOUT:   %a: ref %empty_tuple.type = bind_name a, %a.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/operators/builtin/assignment.carbon b/toolchain/check/testdata/operators/builtin/assignment.carbon
index 089bf3990564..5848c62698ce 100644
--- a/toolchain/check/testdata/operators/builtin/assignment.carbon
+++ b/toolchain/check/testdata/operators/builtin/assignment.carbon
@@ -44,24 +44,24 @@ fn Main() {
 // CHECK:STDOUT:   %int_12.6a3: Core.IntLiteral = int_value 12 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.dae: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.827: <bound method> = bound_method %int_12.6a3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_12.1e1: %i32 = int_value 12 [concrete]
 // CHECK:STDOUT:   %int_9.988: Core.IntLiteral = int_value 9 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.cd3: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.da6: <bound method> = bound_method %int_9.988, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_9.f88: %i32 = int_value 9 [concrete]
 // CHECK:STDOUT:   %tuple.type.24b: type = tuple_type (type, type) [concrete]
 // CHECK:STDOUT:   %tuple.type.d07: type = tuple_type (%i32, %i32) [concrete]
@@ -70,21 +70,21 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %struct_type.a.b.501: type = struct_type {.a: %i32, .b: %i32} [concrete]
 // CHECK:STDOUT:   %ptr.3ee: type = ptr_type %struct_type.a.b.501 [concrete]
@@ -94,27 +94,27 @@ fn Main() {
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %ptr.235 [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
 // CHECK:STDOUT:   %int_10.64f: Core.IntLiteral = int_value 10 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.491: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.5ba: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.eb3: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.dba: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_10.265: %i32 = int_value 10 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.829: <specific function> = specific_function %T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.da3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.501) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.9db: %T.as.Destroy.impl.Op.type.da3 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1e0: <specific function> = specific_function %T.as.Destroy.impl.Op.9db, @T.as.Destroy.impl.Op(%struct_type.a.b.501) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a4a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.d07) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7c6: %T.as.Destroy.impl.Op.type.a4a = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.bbb: <specific function> = specific_function %T.as.Destroy.impl.Op.7c6, @T.as.Destroy.impl.Op(%tuple.type.d07) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d25: <specific function> = specific_function %T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.eb5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.501) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.722: %T.as.Destroy.impl.Op.type.eb5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.e4c: <specific function> = specific_function %T.as.Destroy.impl.Op.722, @T.as.Destroy.impl.Op(%struct_type.a.b.501) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.623: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.d07) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.55d: %T.as.Destroy.impl.Op.type.623 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.698: <specific function> = specific_function %T.as.Destroy.impl.Op.55d, @T.as.Destroy.impl.Op(%tuple.type.d07) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -127,8 +127,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -149,10 +149,10 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %a.var: ref %i32 = var %a.var_patt
 // CHECK:STDOUT:   %int_12: Core.IntLiteral = int_value 12 [concrete = constants.%int_12.6a3]
-// CHECK:STDOUT:   %impl.elem0.loc16: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_3.1: <bound method> = bound_method %int_12, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.221]
+// CHECK:STDOUT:   %impl.elem0.loc16: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_3.1: <bound method> = bound_method %int_12, %impl.elem0.loc16 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.0b4]
 // CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %impl.elem0.loc16, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_3.2: <bound method> = bound_method %int_12, %specific_fn.loc16 [concrete = constants.%bound_method.dae]
+// CHECK:STDOUT:   %bound_method.loc16_3.2: <bound method> = bound_method %int_12, %specific_fn.loc16 [concrete = constants.%bound_method.827]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16: init %i32 = call %bound_method.loc16_3.2(%int_12) [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   %.loc16_3: init %i32 = converted %int_12, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16 [concrete = constants.%int_12.1e1]
 // CHECK:STDOUT:   assign %a.var, %.loc16_3
@@ -163,10 +163,10 @@ fn Main() {
 // CHECK:STDOUT:   %a: ref %i32 = bind_name a, %a.var
 // CHECK:STDOUT:   %a.ref.loc17: ref %i32 = name_ref a, %a
 // CHECK:STDOUT:   %int_9: Core.IntLiteral = int_value 9 [concrete = constants.%int_9.988]
-// CHECK:STDOUT:   %impl.elem0.loc17: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_5.1: <bound method> = bound_method %int_9, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.9e2]
+// CHECK:STDOUT:   %impl.elem0.loc17: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_5.1: <bound method> = bound_method %int_9, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.025]
 // CHECK:STDOUT:   %specific_fn.loc17: <specific function> = specific_function %impl.elem0.loc17, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_5.2: <bound method> = bound_method %int_9, %specific_fn.loc17 [concrete = constants.%bound_method.cd3]
+// CHECK:STDOUT:   %bound_method.loc17_5.2: <bound method> = bound_method %int_9, %specific_fn.loc17 [concrete = constants.%bound_method.da6]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17: init %i32 = call %bound_method.loc17_5.2(%int_9) [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   %.loc17: init %i32 = converted %int_9, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17 [concrete = constants.%int_9.f88]
 // CHECK:STDOUT:   assign %a.ref.loc17, %.loc17
@@ -178,18 +178,18 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.loc19: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc19: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc19_28.1: %tuple.type.f94 = tuple_literal (%int_1.loc19, %int_2.loc19)
-// CHECK:STDOUT:   %impl.elem0.loc19_28.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc19_28.1: <bound method> = bound_method %int_1.loc19, %impl.elem0.loc19_28.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc19_28.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc19_28.1: <bound method> = bound_method %int_1.loc19, %impl.elem0.loc19_28.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc19_28.1: <specific function> = specific_function %impl.elem0.loc19_28.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc19_28.2: <bound method> = bound_method %int_1.loc19, %specific_fn.loc19_28.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc19_28.2: <bound method> = bound_method %int_1.loc19, %specific_fn.loc19_28.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_28.1: init %i32 = call %bound_method.loc19_28.2(%int_1.loc19) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc19_28.2: init %i32 = converted %int_1.loc19, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_28.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %tuple.elem0.loc19: ref %i32 = tuple_access %b.var, element0
 // CHECK:STDOUT:   %.loc19_28.3: init %i32 = initialize_from %.loc19_28.2 to %tuple.elem0.loc19 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc19_28.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc19_28.3: <bound method> = bound_method %int_2.loc19, %impl.elem0.loc19_28.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc19_28.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc19_28.3: <bound method> = bound_method %int_2.loc19, %impl.elem0.loc19_28.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc19_28.2: <specific function> = specific_function %impl.elem0.loc19_28.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc19_28.4: <bound method> = bound_method %int_2.loc19, %specific_fn.loc19_28.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc19_28.4: <bound method> = bound_method %int_2.loc19, %specific_fn.loc19_28.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_28.2: init %i32 = call %bound_method.loc19_28.4(%int_2.loc19) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc19_28.4: init %i32 = converted %int_2.loc19, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc19_28.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %tuple.elem1.loc19: ref %i32 = tuple_access %b.var, element1
@@ -210,10 +210,10 @@ fn Main() {
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:   %tuple.elem0.loc20: ref %i32 = tuple_access %b.ref.loc20, element0
 // CHECK:STDOUT:   %int_3.loc20: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_7.1: <bound method> = bound_method %int_3.loc20, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_7.1: <bound method> = bound_method %int_3.loc20, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_7.2: <bound method> = bound_method %int_3.loc20, %specific_fn.loc20 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc20_7.2: <bound method> = bound_method %int_3.loc20, %specific_fn.loc20 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_7.2(%int_3.loc20) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc20: init %i32 = converted %int_3.loc20, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   assign %tuple.elem0.loc20, %.loc20
@@ -221,10 +221,10 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.loc21: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %tuple.elem1.loc21: ref %i32 = tuple_access %b.ref.loc21, element1
 // CHECK:STDOUT:   %int_4.loc21: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc21: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_7.1: <bound method> = bound_method %int_4.loc21, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc21: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_7.1: <bound method> = bound_method %int_4.loc21, %impl.elem0.loc21 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc21: <specific function> = specific_function %impl.elem0.loc21, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_7.2: <bound method> = bound_method %int_4.loc21, %specific_fn.loc21 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc21_7.2: <bound method> = bound_method %int_4.loc21, %specific_fn.loc21 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21: init %i32 = call %bound_method.loc21_7.2(%int_4.loc21) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc21: init %i32 = converted %int_4.loc21, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   assign %tuple.elem1.loc21, %.loc21
@@ -236,18 +236,18 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.loc23: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc23: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc23_46.1: %struct_type.a.b.cfd = struct_literal (%int_1.loc23, %int_2.loc23)
-// CHECK:STDOUT:   %impl.elem0.loc23_46.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_46.1: <bound method> = bound_method %int_1.loc23, %impl.elem0.loc23_46.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc23_46.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_46.1: <bound method> = bound_method %int_1.loc23, %impl.elem0.loc23_46.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc23_46.1: <specific function> = specific_function %impl.elem0.loc23_46.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_46.2: <bound method> = bound_method %int_1.loc23, %specific_fn.loc23_46.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc23_46.2: <bound method> = bound_method %int_1.loc23, %specific_fn.loc23_46.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23_46.1: init %i32 = call %bound_method.loc23_46.2(%int_1.loc23) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc23_46.2: init %i32 = converted %int_1.loc23, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23_46.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc23_46.3: ref %i32 = struct_access %c.var, element0
 // CHECK:STDOUT:   %.loc23_46.4: init %i32 = initialize_from %.loc23_46.2 to %.loc23_46.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc23_46.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc23_46.3: <bound method> = bound_method %int_2.loc23, %impl.elem0.loc23_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc23_46.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc23_46.3: <bound method> = bound_method %int_2.loc23, %impl.elem0.loc23_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc23_46.2: <specific function> = specific_function %impl.elem0.loc23_46.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc23_46.4: <bound method> = bound_method %int_2.loc23, %specific_fn.loc23_46.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc23_46.4: <bound method> = bound_method %int_2.loc23, %specific_fn.loc23_46.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23_46.2: init %i32 = call %bound_method.loc23_46.4(%int_2.loc23) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc23_46.5: init %i32 = converted %int_2.loc23, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc23_46.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc23_46.6: ref %i32 = struct_access %c.var, element1
@@ -266,20 +266,20 @@ fn Main() {
 // CHECK:STDOUT:   %c.ref.loc24: ref %struct_type.a.b.501 = name_ref c, %c
 // CHECK:STDOUT:   %.loc24_4: ref %i32 = struct_access %c.ref.loc24, element0
 // CHECK:STDOUT:   %int_3.loc24: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc24: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc24_7.1: <bound method> = bound_method %int_3.loc24, %impl.elem0.loc24 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc24: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc24_7.1: <bound method> = bound_method %int_3.loc24, %impl.elem0.loc24 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc24: <specific function> = specific_function %impl.elem0.loc24, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc24_7.2: <bound method> = bound_method %int_3.loc24, %specific_fn.loc24 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc24_7.2: <bound method> = bound_method %int_3.loc24, %specific_fn.loc24 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc24: init %i32 = call %bound_method.loc24_7.2(%int_3.loc24) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc24_7: init %i32 = converted %int_3.loc24, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc24 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   assign %.loc24_4, %.loc24_7
 // CHECK:STDOUT:   %c.ref.loc25: ref %struct_type.a.b.501 = name_ref c, %c
 // CHECK:STDOUT:   %.loc25_4: ref %i32 = struct_access %c.ref.loc25, element1
 // CHECK:STDOUT:   %int_4.loc25: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc25_7.1: <bound method> = bound_method %int_4.loc25, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc25_7.1: <bound method> = bound_method %int_4.loc25, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc25: <specific function> = specific_function %impl.elem0.loc25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc25_7.2: <bound method> = bound_method %int_4.loc25, %specific_fn.loc25 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc25_7.2: <bound method> = bound_method %int_4.loc25, %specific_fn.loc25 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25: init %i32 = call %bound_method.loc25_7.2(%int_4.loc25) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc25_7: init %i32 = converted %int_4.loc25, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   assign %.loc25_4, %.loc25_7
@@ -301,10 +301,10 @@ fn Main() {
 // CHECK:STDOUT:   %.loc28_4: %ptr.235 = bind_value %p.ref.loc28
 // CHECK:STDOUT:   %.loc28_3: ref %i32 = deref %.loc28_4
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
-// CHECK:STDOUT:   %impl.elem0.loc28: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc28_6.1: <bound method> = bound_method %int_5, %impl.elem0.loc28 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc28: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc28_6.1: <bound method> = bound_method %int_5, %impl.elem0.loc28 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc28: <specific function> = specific_function %impl.elem0.loc28, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc28_6.2: <bound method> = bound_method %int_5, %specific_fn.loc28 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc28_6.2: <bound method> = bound_method %int_5, %specific_fn.loc28 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc28: init %i32 = call %bound_method.loc28_6.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc28_6: init %i32 = converted %int_5, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc28 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   assign %.loc28_3, %.loc28_6
@@ -325,30 +325,30 @@ fn Main() {
 // CHECK:STDOUT:   %.loc30_5: %ptr.235 = block_arg !if.expr.result
 // CHECK:STDOUT:   %.loc30_3: ref %i32 = deref %.loc30_5
 // CHECK:STDOUT:   %int_10: Core.IntLiteral = int_value 10 [concrete = constants.%int_10.64f]
-// CHECK:STDOUT:   %impl.elem0.loc30: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc30_29.1: <bound method> = bound_method %int_10, %impl.elem0.loc30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.491]
+// CHECK:STDOUT:   %impl.elem0.loc30: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc30_29.1: <bound method> = bound_method %int_10, %impl.elem0.loc30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.eb3]
 // CHECK:STDOUT:   %specific_fn.loc30: <specific function> = specific_function %impl.elem0.loc30, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc30_29.2: <bound method> = bound_method %int_10, %specific_fn.loc30 [concrete = constants.%bound_method.5ba]
+// CHECK:STDOUT:   %bound_method.loc30_29.2: <bound method> = bound_method %int_10, %specific_fn.loc30 [concrete = constants.%bound_method.dba]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc30: init %i32 = call %bound_method.loc30_29.2(%int_10) [concrete = constants.%int_10.265]
 // CHECK:STDOUT:   %.loc30_29: init %i32 = converted %int_10, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc30 [concrete = constants.%int_10.265]
 // CHECK:STDOUT:   assign %.loc30_3, %.loc30_29
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc27: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc27: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc27: <bound method> = bound_method %p.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc27_3: %ptr.5d5 = addr_of %p.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc27: init %empty_tuple.type = call %bound_method.loc27(%addr.loc27_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.9db
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.9db, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.501) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.1e0]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.722
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.722, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.501) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e4c]
 // CHECK:STDOUT:   %bound_method.loc23_3: <bound method> = bound_method %c.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc23: %ptr.3ee = addr_of %c.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23_3(%addr.loc23)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.7c6
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7c6, @T.as.Destroy.impl.Op(constants.%tuple.type.d07) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.bbb]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.55d
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.55d, @T.as.Destroy.impl.Op(constants.%tuple.type.d07) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.698]
 // CHECK:STDOUT:   %bound_method.loc19_3: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc19: %ptr.261 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc19: init %empty_tuple.type = call %bound_method.loc19_3(%addr.loc19)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.3: <bound method> = bound_method %a.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc16: %ptr.235 = addr_of %a.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc16_3.3(%addr.loc16)
diff --git a/toolchain/check/testdata/operators/builtin/fail_assignment_to_non_assignable.carbon b/toolchain/check/testdata/operators/builtin/fail_assignment_to_non_assignable.carbon
index f512b75195a0..513d06d02fce 100644
--- a/toolchain/check/testdata/operators/builtin/fail_assignment_to_non_assignable.carbon
+++ b/toolchain/check/testdata/operators/builtin/fail_assignment_to_non_assignable.carbon
@@ -78,20 +78,20 @@ fn Main() {
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
@@ -99,12 +99,12 @@ fn Main() {
 // CHECK:STDOUT:   %tuple.302: %tuple.type.f94 = tuple_value (%int_3.1ba, %int_4) [concrete]
 // CHECK:STDOUT:   %tuple.ad8: %tuple.type.f94 = tuple_value (%int_1.5b8, %int_2.ecc) [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %tuple.type.d07: type = tuple_type (%i32, %i32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.21c: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
@@ -112,16 +112,16 @@ fn Main() {
 // CHECK:STDOUT:   %struct.a0d: %struct_type.x.y = struct_value (%int_3.1ba, %int_4) [concrete]
 // CHECK:STDOUT:   %struct.004: %struct_type.x.y = struct_value (%int_1.5b8, %int_2.ecc) [concrete]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %int_10.64f: Core.IntLiteral = int_value 10 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.491: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.5ba: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.eb3: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.dba: <bound method> = bound_method %int_10.64f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_10.265: %i32 = int_value 10 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -134,8 +134,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -168,10 +168,10 @@ fn Main() {
 // CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
 // CHECK:STDOUT:   %F.call: init %i32 = call %F.ref()
 // CHECK:STDOUT:   %int_1.loc27: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc27_7.1: <bound method> = bound_method %int_1.loc27, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc27_7.1: <bound method> = bound_method %int_1.loc27, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc27: <specific function> = specific_function %impl.elem0.loc27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc27_7.2: <bound method> = bound_method %int_1.loc27, %specific_fn.loc27 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc27_7.2: <bound method> = bound_method %int_1.loc27, %specific_fn.loc27 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27: init %i32 = call %bound_method.loc27_7.2(%int_1.loc27) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc27: init %i32 = converted %int_1.loc27, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %F.call, %.loc27
@@ -196,10 +196,10 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %n.var: ref %i32 = var %n.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc33: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc33_3.1: <bound method> = bound_method %int_0, %impl.elem0.loc33 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc33: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc33_3.1: <bound method> = bound_method %int_0, %impl.elem0.loc33 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc33: <specific function> = specific_function %impl.elem0.loc33, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc33_3.2: <bound method> = bound_method %int_0, %specific_fn.loc33 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc33_3.2: <bound method> = bound_method %int_0, %specific_fn.loc33 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc33: init %i32 = call %bound_method.loc33_3.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc33_3: init %i32 = converted %int_0, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc33 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %n.var, %.loc33_3
@@ -214,18 +214,18 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.loc38: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc38: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc38_17.1: %tuple.type.f94 = tuple_literal (%int_1.loc38, %int_2.loc38)
-// CHECK:STDOUT:   %impl.elem0.loc38_17.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc38_17.1: <bound method> = bound_method %int_1.loc38, %impl.elem0.loc38_17.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc38_17.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc38_17.1: <bound method> = bound_method %int_1.loc38, %impl.elem0.loc38_17.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc38_17.1: <specific function> = specific_function %impl.elem0.loc38_17.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc38_17.2: <bound method> = bound_method %int_1.loc38, %specific_fn.loc38_17.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc38_17.2: <bound method> = bound_method %int_1.loc38, %specific_fn.loc38_17.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc38_17.1: init %i32 = call %bound_method.loc38_17.2(%int_1.loc38) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc38_17.2: init %i32 = converted %int_1.loc38, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc38_17.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %tuple.elem0.loc38: %i32 = tuple_access %.loc38_8.1, element0
 // CHECK:STDOUT:   %.loc38_17.3: init %i32 = initialize_from %.loc38_17.2 to %tuple.elem0.loc38 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc38_17.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc38_17.3: <bound method> = bound_method %int_2.loc38, %impl.elem0.loc38_17.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc38_17.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc38_17.3: <bound method> = bound_method %int_2.loc38, %impl.elem0.loc38_17.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc38_17.2: <specific function> = specific_function %impl.elem0.loc38_17.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc38_17.4: <bound method> = bound_method %int_2.loc38, %specific_fn.loc38_17.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc38_17.4: <bound method> = bound_method %int_2.loc38, %specific_fn.loc38_17.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc38_17.2: init %i32 = call %bound_method.loc38_17.4(%int_2.loc38) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc38_17.4: init %i32 = converted %int_2.loc38, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc38_17.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %tuple.elem1.loc38: %i32 = tuple_access %.loc38_8.1, element1
@@ -265,10 +265,10 @@ fn Main() {
 // CHECK:STDOUT:   %int_1.loc53: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_32.loc53: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc53: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc53_12: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc53_12.1: <bound method> = bound_method %int_1.loc53, %impl.elem0.loc53_12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc53_12: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc53_12.1: <bound method> = bound_method %int_1.loc53, %impl.elem0.loc53_12 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc53_12: <specific function> = specific_function %impl.elem0.loc53_12, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc53_12.2: <bound method> = bound_method %int_1.loc53, %specific_fn.loc53_12 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc53_12.2: <bound method> = bound_method %int_1.loc53, %specific_fn.loc53_12 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc53_12: init %i32 = call %bound_method.loc53_12.2(%int_1.loc53) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc53_12.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc53_12 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc53_12.2: %i32 = converted %int_1.loc53, %.loc53_12.1 [concrete = constants.%int_1.5d2]
@@ -276,10 +276,10 @@ fn Main() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.expr.else.loc53:
 // CHECK:STDOUT:   %int_2.loc53: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc53_19: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc53_19.1: <bound method> = bound_method %int_2.loc53, %impl.elem0.loc53_19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc53_19: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc53_19.1: <bound method> = bound_method %int_2.loc53, %impl.elem0.loc53_19 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc53_19: <specific function> = specific_function %impl.elem0.loc53_19, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc53_19.2: <bound method> = bound_method %int_2.loc53, %specific_fn.loc53_19 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc53_19.2: <bound method> = bound_method %int_2.loc53, %specific_fn.loc53_19 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc53_19: init %i32 = call %bound_method.loc53_19.2(%int_2.loc53) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc53_19.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc53_19 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc53_19.2: %i32 = converted %int_2.loc53, %.loc53_19.1 [concrete = constants.%int_2.ef8]
@@ -288,10 +288,10 @@ fn Main() {
 // CHECK:STDOUT: !if.expr.result.loc53:
 // CHECK:STDOUT:   %.loc53_4: %i32 = block_arg !if.expr.result.loc53 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %int_3.loc53: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc53_27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc53_27.1: <bound method> = bound_method %int_3.loc53, %impl.elem0.loc53_27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc53_27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc53_27.1: <bound method> = bound_method %int_3.loc53, %impl.elem0.loc53_27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc53_27: <specific function> = specific_function %impl.elem0.loc53_27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc53_27.2: <bound method> = bound_method %int_3.loc53, %specific_fn.loc53_27 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc53_27.2: <bound method> = bound_method %int_3.loc53, %specific_fn.loc53_27 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc53_27: init %i32 = call %bound_method.loc53_27.2(%int_3.loc53) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc53_27: init %i32 = converted %int_3.loc53, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc53_27 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   assign %.loc53_4, %.loc53_27
@@ -321,20 +321,20 @@ fn Main() {
 // CHECK:STDOUT: !if.expr.result.loc61:
 // CHECK:STDOUT:   %.loc61_4: %i32 = block_arg !if.expr.result.loc61
 // CHECK:STDOUT:   %int_10: Core.IntLiteral = int_value 10 [concrete = constants.%int_10.64f]
-// CHECK:STDOUT:   %impl.elem0.loc61: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc61_27.1: <bound method> = bound_method %int_10, %impl.elem0.loc61 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.491]
+// CHECK:STDOUT:   %impl.elem0.loc61: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc61_27.1: <bound method> = bound_method %int_10, %impl.elem0.loc61 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.eb3]
 // CHECK:STDOUT:   %specific_fn.loc61: <specific function> = specific_function %impl.elem0.loc61, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc61_27.2: <bound method> = bound_method %int_10, %specific_fn.loc61 [concrete = constants.%bound_method.5ba]
+// CHECK:STDOUT:   %bound_method.loc61_27.2: <bound method> = bound_method %int_10, %specific_fn.loc61 [concrete = constants.%bound_method.dba]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc61: init %i32 = call %bound_method.loc61_27.2(%int_10) [concrete = constants.%int_10.265]
 // CHECK:STDOUT:   %.loc61_27: init %i32 = converted %int_10, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc61 [concrete = constants.%int_10.265]
 // CHECK:STDOUT:   assign %.loc61_4, %.loc61_27
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc56: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc56: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc56: <bound method> = bound_method %a.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc56: %ptr.235 = addr_of %a.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc56: init %empty_tuple.type = call %bound_method.loc56(%addr.loc56)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc33: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc33: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc33_3.3: <bound method> = bound_method %n.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc33: %ptr.235 = addr_of %n.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc33: init %empty_tuple.type = call %bound_method.loc33_3.3(%addr.loc33)
diff --git a/toolchain/check/testdata/operators/builtin/fail_redundant_compound_access.carbon b/toolchain/check/testdata/operators/builtin/fail_redundant_compound_access.carbon
index 21871325c239..547740b8a722 100644
--- a/toolchain/check/testdata/operators/builtin/fail_redundant_compound_access.carbon
+++ b/toolchain/check/testdata/operators/builtin/fail_redundant_compound_access.carbon
@@ -42,31 +42,31 @@ fn Main() {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Main.type: type = fn_type @Main [concrete]
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -79,8 +79,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -106,10 +106,10 @@ fn Main() {
 // CHECK:STDOUT: fn @F() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_25.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_25.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_25.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc15_25.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc15_25.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc15_25.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc15_25.2: %i32 = converted %int_0, %.loc15_25.1 [concrete = constants.%int_0.6a9]
@@ -124,10 +124,10 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %a.var: ref %i32 = var %a.var_patt
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_3.1: <bound method> = bound_method %int_3, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_3.1: <bound method> = bound_method %int_3, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_3.2: <bound method> = bound_method %int_3, %specific_fn [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc18_3.2: <bound method> = bound_method %int_3, %specific_fn [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc18_3.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc18_3: init %i32 = converted %int_3, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   assign %a.var, %.loc18_3
@@ -146,8 +146,8 @@ fn Main() {
 // CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
 // CHECK:STDOUT:   %F.call: init %i32 = call %F.ref()
 // CHECK:STDOUT:   assign %a.ref.loc28_3, %F.call
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc18_3.3: <bound method> = bound_method %a.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %a.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc18_3.3(%addr)
diff --git a/toolchain/check/testdata/operators/builtin/fail_type_mismatch.carbon b/toolchain/check/testdata/operators/builtin/fail_type_mismatch.carbon
index 284826978895..38e64743b6d6 100644
--- a/toolchain/check/testdata/operators/builtin/fail_type_mismatch.carbon
+++ b/toolchain/check/testdata/operators/builtin/fail_type_mismatch.carbon
@@ -36,10 +36,10 @@ fn Main() {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.655: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8b7: %T.as.Destroy.impl.Op.type.655 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.19a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4f7: %T.as.Destroy.impl.Op.type.19a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.bb2: type = ptr_type bool [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -81,8 +81,8 @@ fn Main() {
 // CHECK:STDOUT:     %.loc23_10.3: type = converted %Bool.call, %.loc23_10.2 [concrete = bool]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref bool = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.bb2 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/operators/builtin/fail_type_mismatch_assignment.carbon b/toolchain/check/testdata/operators/builtin/fail_type_mismatch_assignment.carbon
index 1e8c17fb865f..1c3fc50653dd 100644
--- a/toolchain/check/testdata/operators/builtin/fail_type_mismatch_assignment.carbon
+++ b/toolchain/check/testdata/operators/builtin/fail_type_mismatch_assignment.carbon
@@ -38,26 +38,26 @@ fn Main() {
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 56e-1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -70,8 +70,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -92,7 +92,7 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %a.var: ref %i32 = var %a.var_patt
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_3.1: <bound method> = bound_method %int_3, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.2: <bound method> = bound_method %int_3, %specific_fn [concrete = constants.%bound_method]
@@ -108,8 +108,8 @@ fn Main() {
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 56e-1 [concrete = constants.%float]
 // CHECK:STDOUT:   %.loc24: %i32 = converted %float, <error> [concrete = <error>]
 // CHECK:STDOUT:   assign %a.ref, <error>
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.3: <bound method> = bound_method %a.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %a.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc16_3.3(%addr)
diff --git a/toolchain/check/testdata/operators/builtin/or.carbon b/toolchain/check/testdata/operators/builtin/or.carbon
index dfdcf17cee04..a85de77a24cd 100644
--- a/toolchain/check/testdata/operators/builtin/or.carbon
+++ b/toolchain/check/testdata/operators/builtin/or.carbon
@@ -50,14 +50,14 @@ fn PartialConstant(x: bool) {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.393: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.655: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8b7: %T.as.Destroy.impl.Op.type.655 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.900: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.19a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4f7: %T.as.Destroy.impl.Op.type.19a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.bb2: type = ptr_type bool [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.c3f: <specific function> = specific_function %T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.e5c: <specific function> = specific_function %T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete]
 // CHECK:STDOUT:   %PartialConstant.type: type = fn_type @PartialConstant [concrete]
 // CHECK:STDOUT:   %PartialConstant: %PartialConstant.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -326,23 +326,23 @@ fn PartialConstant(x: bool) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !.loc26_7:
 // CHECK:STDOUT:   %d: ref %empty_tuple.type = bind_name d, %d.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc26: <bound method> = bound_method %d.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method.loc26: <bound method> = bound_method %d.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc26: %ptr.843 = addr_of %d.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc26: init %empty_tuple.type = call %bound_method.loc26(%addr.loc26)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c3f]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %c.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e5c]
 // CHECK:STDOUT:   %bound_method.loc25: <bound method> = bound_method %c.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc25: %ptr.bb2 = addr_of %c.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc25: init %empty_tuple.type = call %bound_method.loc25(%addr.loc25)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c3f]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e5c]
 // CHECK:STDOUT:   %bound_method.loc24: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc24: %ptr.bb2 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc24: init %empty_tuple.type = call %bound_method.loc24(%addr.loc24)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c3f]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e5c]
 // CHECK:STDOUT:   %bound_method.loc23: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc23: %ptr.bb2 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23(%addr.loc23)
@@ -391,8 +391,8 @@ fn PartialConstant(x: bool) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !.loc30_7:
 // CHECK:STDOUT:   %a: ref bool = bind_name a, %a.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c3f]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e5c]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.bb2 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/operators/builtin/unary_op.carbon b/toolchain/check/testdata/operators/builtin/unary_op.carbon
index dde370e8988a..8ad7870bd620 100644
--- a/toolchain/check/testdata/operators/builtin/unary_op.carbon
+++ b/toolchain/check/testdata/operators/builtin/unary_op.carbon
@@ -40,14 +40,14 @@ fn Constant() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.655: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.8b7: %T.as.Destroy.impl.Op.type.655 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.19a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4f7: %T.as.Destroy.impl.Op.type.19a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.bb2: type = ptr_type bool [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.c3f: <specific function> = specific_function %T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.e5c: <specific function> = specific_function %T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.393: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.900: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -183,13 +183,13 @@ fn Constant() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !.loc24_7:
 // CHECK:STDOUT:   %b: ref bool = bind_name b, %b.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.8b7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.8b7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.c3f]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %b.var, constants.%T.as.Destroy.impl.Op.4f7
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4f7, @T.as.Destroy.impl.Op(bool) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e5c]
 // CHECK:STDOUT:   %bound_method.loc24: <bound method> = bound_method %b.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc24: %ptr.bb2 = addr_of %b.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc24: init %empty_tuple.type = call %bound_method.loc24(%addr.loc24)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %a.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method.loc23: <bound method> = bound_method %a.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc23: %ptr.843 = addr_of %a.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23(%addr.loc23)
diff --git a/toolchain/check/testdata/operators/overloaded/add.carbon b/toolchain/check/testdata/operators/overloaded/add.carbon
index 75e8998fb4e2..b757f7585dcf 100644
--- a/toolchain/check/testdata/operators/overloaded/add.carbon
+++ b/toolchain/check/testdata/operators/overloaded/add.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %AddWith.type.ffb: type = facet_type <@AddWith, @AddWith(%C)> [concrete]
+// CHECK:STDOUT:   %AddWith.type.83f: type = facet_type <@AddWith, @AddWith(%C)> [concrete]
 // CHECK:STDOUT:   %AddWith.Op.type.45e: type = fn_type @AddWith.Op, @AddWith(%C) [concrete]
 // CHECK:STDOUT:   %AddWith.impl_witness: <witness> = impl_witness file.%AddWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.AddWith.impl.Op.type: type = fn_type @C.as.AddWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.AddWith.impl.Op: %C.as.AddWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %AddWith.facet.3ef: %AddWith.type.ffb = facet_value %C, (%AddWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %AddAssignWith.type.393: type = facet_type <@AddAssignWith, @AddAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %AddWith.facet.890: %AddWith.type.83f = facet_value %C, (%AddWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %AddAssignWith.type.f0f: type = facet_type <@AddAssignWith, @AddAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %AddAssignWith.Op.type.5af: type = fn_type @AddAssignWith.Op, @AddAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness file.%AddAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.type: type = fn_type @C.as.AddAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op: %C.as.AddAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %AddAssignWith.facet: %AddAssignWith.type.393 = facet_value %C, (%AddAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.268: type = fn_type_with_self_type %AddWith.Op.type.45e, %AddWith.facet.3ef [concrete]
-// CHECK:STDOUT:   %.e2d: type = fn_type_with_self_type %AddAssignWith.Op.type.5af, %AddAssignWith.facet [concrete]
+// CHECK:STDOUT:   %AddAssignWith.facet: %AddAssignWith.type.f0f = facet_value %C, (%AddAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.e9d: type = fn_type_with_self_type %AddWith.Op.type.45e, %AddWith.facet.890 [concrete]
+// CHECK:STDOUT:   %.98a: type = fn_type_with_self_type %AddAssignWith.Op.type.5af, %AddAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.268 = impl_witness_access constants.%AddWith.impl_witness, element1 [concrete = constants.%C.as.AddWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.e9d = impl_witness_access constants.%AddWith.impl_witness, element1 [concrete = constants.%C.as.AddWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.AddWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.e2d = impl_witness_access constants.%AddAssignWith.impl_witness, element0 [concrete = constants.%C.as.AddAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.98a = impl_witness_access constants.%AddAssignWith.impl_witness, element0 [concrete = constants.%C.as.AddAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/bit_and.carbon b/toolchain/check/testdata/operators/overloaded/bit_and.carbon
index 6114a310ab59..864090dfeab6 100644
--- a/toolchain/check/testdata/operators/overloaded/bit_and.carbon
+++ b/toolchain/check/testdata/operators/overloaded/bit_and.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %BitAndWith.type.e40: type = facet_type <@BitAndWith, @BitAndWith(%C)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.type.1c1: type = facet_type <@BitAndWith, @BitAndWith(%C)> [concrete]
 // CHECK:STDOUT:   %BitAndWith.Op.type.914: type = fn_type @BitAndWith.Op, @BitAndWith(%C) [concrete]
 // CHECK:STDOUT:   %BitAndWith.impl_witness: <witness> = impl_witness file.%BitAndWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitAndWith.impl.Op.type: type = fn_type @C.as.BitAndWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitAndWith.impl.Op: %C.as.BitAndWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndWith.facet.783: %BitAndWith.type.e40 = facet_value %C, (%BitAndWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %BitAndAssignWith.type.e85: type = facet_type <@BitAndAssignWith, @BitAndAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %BitAndWith.facet.45a: %BitAndWith.type.1c1 = facet_value %C, (%BitAndWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %BitAndAssignWith.type.bb9: type = facet_type <@BitAndAssignWith, @BitAndAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %BitAndAssignWith.Op.type.73d: type = fn_type @BitAndAssignWith.Op, @BitAndAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %BitAndAssignWith.impl_witness: <witness> = impl_witness file.%BitAndAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitAndAssignWith.impl.Op.type: type = fn_type @C.as.BitAndAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitAndAssignWith.impl.Op: %C.as.BitAndAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitAndAssignWith.facet: %BitAndAssignWith.type.e85 = facet_value %C, (%BitAndAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.04a: type = fn_type_with_self_type %BitAndWith.Op.type.914, %BitAndWith.facet.783 [concrete]
-// CHECK:STDOUT:   %.554: type = fn_type_with_self_type %BitAndAssignWith.Op.type.73d, %BitAndAssignWith.facet [concrete]
+// CHECK:STDOUT:   %BitAndAssignWith.facet: %BitAndAssignWith.type.bb9 = facet_value %C, (%BitAndAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.429: type = fn_type_with_self_type %BitAndWith.Op.type.914, %BitAndWith.facet.45a [concrete]
+// CHECK:STDOUT:   %.4c6: type = fn_type_with_self_type %BitAndAssignWith.Op.type.73d, %BitAndAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.04a = impl_witness_access constants.%BitAndWith.impl_witness, element1 [concrete = constants.%C.as.BitAndWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.429 = impl_witness_access constants.%BitAndWith.impl_witness, element1 [concrete = constants.%C.as.BitAndWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.BitAndWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.554 = impl_witness_access constants.%BitAndAssignWith.impl_witness, element0 [concrete = constants.%C.as.BitAndAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.4c6 = impl_witness_access constants.%BitAndAssignWith.impl_witness, element0 [concrete = constants.%C.as.BitAndAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.BitAndAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/bit_complement.carbon b/toolchain/check/testdata/operators/overloaded/bit_complement.carbon
index 4f5ca0e4d901..986aa9d36188 100644
--- a/toolchain/check/testdata/operators/overloaded/bit_complement.carbon
+++ b/toolchain/check/testdata/operators/overloaded/bit_complement.carbon
@@ -39,8 +39,8 @@ fn TestOp(a: C) -> C {
 // CHECK:STDOUT:   %BitComplement.impl_witness: <witness> = impl_witness file.%BitComplement.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitComplement.impl.Op.type: type = fn_type @C.as.BitComplement.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitComplement.impl.Op: %C.as.BitComplement.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitComplement.facet.c4c: %BitComplement.type = facet_value %C, (%BitComplement.impl_witness) [concrete]
-// CHECK:STDOUT:   %.18b: type = fn_type_with_self_type %BitComplement.Op.type, %BitComplement.facet.c4c [concrete]
+// CHECK:STDOUT:   %BitComplement.facet.d68: %BitComplement.type = facet_value %C, (%BitComplement.impl_witness) [concrete]
+// CHECK:STDOUT:   %.169: type = fn_type_with_self_type %BitComplement.Op.type, %BitComplement.facet.d68 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -49,7 +49,7 @@ fn TestOp(a: C) -> C {
 // CHECK:STDOUT: fn @TestOp(%a.param: %C) -> %return.param: %C {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
-// CHECK:STDOUT:   %impl.elem1: %.18b = impl_witness_access constants.%BitComplement.impl_witness, element1 [concrete = constants.%C.as.BitComplement.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.169 = impl_witness_access constants.%BitComplement.impl_witness, element1 [concrete = constants.%C.as.BitComplement.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.BitComplement.impl.Op.call: init %C = call %bound_method(%a.ref) to %.loc27
diff --git a/toolchain/check/testdata/operators/overloaded/bit_or.carbon b/toolchain/check/testdata/operators/overloaded/bit_or.carbon
index f5f6bcff80af..a1c22e143e3b 100644
--- a/toolchain/check/testdata/operators/overloaded/bit_or.carbon
+++ b/toolchain/check/testdata/operators/overloaded/bit_or.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %BitOrWith.type.502: type = facet_type <@BitOrWith, @BitOrWith(%C)> [concrete]
+// CHECK:STDOUT:   %BitOrWith.type.db4: type = facet_type <@BitOrWith, @BitOrWith(%C)> [concrete]
 // CHECK:STDOUT:   %BitOrWith.Op.type.501: type = fn_type @BitOrWith.Op, @BitOrWith(%C) [concrete]
 // CHECK:STDOUT:   %BitOrWith.impl_witness: <witness> = impl_witness file.%BitOrWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitOrWith.impl.Op.type: type = fn_type @C.as.BitOrWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitOrWith.impl.Op: %C.as.BitOrWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitOrWith.facet.f19: %BitOrWith.type.502 = facet_value %C, (%BitOrWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %BitOrAssignWith.type.3e6: type = facet_type <@BitOrAssignWith, @BitOrAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %BitOrWith.facet.2a2: %BitOrWith.type.db4 = facet_value %C, (%BitOrWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %BitOrAssignWith.type.057: type = facet_type <@BitOrAssignWith, @BitOrAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %BitOrAssignWith.Op.type.efc: type = fn_type @BitOrAssignWith.Op, @BitOrAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %BitOrAssignWith.impl_witness: <witness> = impl_witness file.%BitOrAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitOrAssignWith.impl.Op.type: type = fn_type @C.as.BitOrAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitOrAssignWith.impl.Op: %C.as.BitOrAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitOrAssignWith.facet: %BitOrAssignWith.type.3e6 = facet_value %C, (%BitOrAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.b8d: type = fn_type_with_self_type %BitOrWith.Op.type.501, %BitOrWith.facet.f19 [concrete]
-// CHECK:STDOUT:   %.c8a: type = fn_type_with_self_type %BitOrAssignWith.Op.type.efc, %BitOrAssignWith.facet [concrete]
+// CHECK:STDOUT:   %BitOrAssignWith.facet: %BitOrAssignWith.type.057 = facet_value %C, (%BitOrAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.78d: type = fn_type_with_self_type %BitOrWith.Op.type.501, %BitOrWith.facet.2a2 [concrete]
+// CHECK:STDOUT:   %.2b7: type = fn_type_with_self_type %BitOrAssignWith.Op.type.efc, %BitOrAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.b8d = impl_witness_access constants.%BitOrWith.impl_witness, element1 [concrete = constants.%C.as.BitOrWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.78d = impl_witness_access constants.%BitOrWith.impl_witness, element1 [concrete = constants.%C.as.BitOrWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.BitOrWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.c8a = impl_witness_access constants.%BitOrAssignWith.impl_witness, element0 [concrete = constants.%C.as.BitOrAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.2b7 = impl_witness_access constants.%BitOrAssignWith.impl_witness, element0 [concrete = constants.%C.as.BitOrAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.BitOrAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/bit_xor.carbon b/toolchain/check/testdata/operators/overloaded/bit_xor.carbon
index 05ae44b9dcec..fa334cd94436 100644
--- a/toolchain/check/testdata/operators/overloaded/bit_xor.carbon
+++ b/toolchain/check/testdata/operators/overloaded/bit_xor.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %BitXorWith.type.f9b: type = facet_type <@BitXorWith, @BitXorWith(%C)> [concrete]
+// CHECK:STDOUT:   %BitXorWith.type.65b: type = facet_type <@BitXorWith, @BitXorWith(%C)> [concrete]
 // CHECK:STDOUT:   %BitXorWith.Op.type.502: type = fn_type @BitXorWith.Op, @BitXorWith(%C) [concrete]
 // CHECK:STDOUT:   %BitXorWith.impl_witness: <witness> = impl_witness file.%BitXorWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitXorWith.impl.Op.type: type = fn_type @C.as.BitXorWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitXorWith.impl.Op: %C.as.BitXorWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitXorWith.facet.d57: %BitXorWith.type.f9b = facet_value %C, (%BitXorWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %BitXorAssignWith.type.57a: type = facet_type <@BitXorAssignWith, @BitXorAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %BitXorWith.facet.bea: %BitXorWith.type.65b = facet_value %C, (%BitXorWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %BitXorAssignWith.type.39f: type = facet_type <@BitXorAssignWith, @BitXorAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %BitXorAssignWith.Op.type.ad0: type = fn_type @BitXorAssignWith.Op, @BitXorAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %BitXorAssignWith.impl_witness: <witness> = impl_witness file.%BitXorAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.BitXorAssignWith.impl.Op.type: type = fn_type @C.as.BitXorAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.BitXorAssignWith.impl.Op: %C.as.BitXorAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %BitXorAssignWith.facet: %BitXorAssignWith.type.57a = facet_value %C, (%BitXorAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.c60: type = fn_type_with_self_type %BitXorWith.Op.type.502, %BitXorWith.facet.d57 [concrete]
-// CHECK:STDOUT:   %.d8a: type = fn_type_with_self_type %BitXorAssignWith.Op.type.ad0, %BitXorAssignWith.facet [concrete]
+// CHECK:STDOUT:   %BitXorAssignWith.facet: %BitXorAssignWith.type.39f = facet_value %C, (%BitXorAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.158: type = fn_type_with_self_type %BitXorWith.Op.type.502, %BitXorWith.facet.bea [concrete]
+// CHECK:STDOUT:   %.31a: type = fn_type_with_self_type %BitXorAssignWith.Op.type.ad0, %BitXorAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.c60 = impl_witness_access constants.%BitXorWith.impl_witness, element1 [concrete = constants.%C.as.BitXorWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.158 = impl_witness_access constants.%BitXorWith.impl_witness, element1 [concrete = constants.%C.as.BitXorWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.BitXorWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.d8a = impl_witness_access constants.%BitXorAssignWith.impl_witness, element0 [concrete = constants.%C.as.BitXorAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.31a = impl_witness_access constants.%BitXorAssignWith.impl_witness, element0 [concrete = constants.%C.as.BitXorAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.BitXorAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/dec.carbon b/toolchain/check/testdata/operators/overloaded/dec.carbon
index f1b4451f524e..df07fcd4bebd 100644
--- a/toolchain/check/testdata/operators/overloaded/dec.carbon
+++ b/toolchain/check/testdata/operators/overloaded/dec.carbon
@@ -41,7 +41,7 @@ fn TestOp() {
 // CHECK:STDOUT:   %C.as.Dec.impl.Op.type: type = fn_type @C.as.Dec.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Dec.impl.Op: %C.as.Dec.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Dec.facet: %Dec.type = facet_value %C, (%Dec.impl_witness) [concrete]
-// CHECK:STDOUT:   %.859: type = fn_type_with_self_type %Dec.Op.type, %Dec.facet [concrete]
+// CHECK:STDOUT:   %.d4b: type = fn_type_with_self_type %Dec.Op.type, %Dec.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -51,7 +51,7 @@ fn TestOp() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %c.ref: ref %C = name_ref c, %c
-// CHECK:STDOUT:   %impl.elem0: %.859 = impl_witness_access constants.%Dec.impl_witness, element0 [concrete = constants.%C.as.Dec.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.d4b = impl_witness_access constants.%Dec.impl_witness, element0 [concrete = constants.%C.as.Dec.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %addr.loc28: %ptr.019 = addr_of %c.ref
 // CHECK:STDOUT:   %C.as.Dec.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc28)
diff --git a/toolchain/check/testdata/operators/overloaded/div.carbon b/toolchain/check/testdata/operators/overloaded/div.carbon
index c42fdec852d2..51d94cc5e2e9 100644
--- a/toolchain/check/testdata/operators/overloaded/div.carbon
+++ b/toolchain/check/testdata/operators/overloaded/div.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %DivWith.type.ead: type = facet_type <@DivWith, @DivWith(%C)> [concrete]
+// CHECK:STDOUT:   %DivWith.type.086: type = facet_type <@DivWith, @DivWith(%C)> [concrete]
 // CHECK:STDOUT:   %DivWith.Op.type.c4b: type = fn_type @DivWith.Op, @DivWith(%C) [concrete]
 // CHECK:STDOUT:   %DivWith.impl_witness: <witness> = impl_witness file.%DivWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.DivWith.impl.Op.type: type = fn_type @C.as.DivWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.DivWith.impl.Op: %C.as.DivWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %DivWith.facet.f3b: %DivWith.type.ead = facet_value %C, (%DivWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %DivAssignWith.type.08b: type = facet_type <@DivAssignWith, @DivAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %DivWith.facet.ff9: %DivWith.type.086 = facet_value %C, (%DivWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %DivAssignWith.type.bb3: type = facet_type <@DivAssignWith, @DivAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %DivAssignWith.Op.type.629: type = fn_type @DivAssignWith.Op, @DivAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %DivAssignWith.impl_witness: <witness> = impl_witness file.%DivAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.DivAssignWith.impl.Op.type: type = fn_type @C.as.DivAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.DivAssignWith.impl.Op: %C.as.DivAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %DivAssignWith.facet: %DivAssignWith.type.08b = facet_value %C, (%DivAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.bb6: type = fn_type_with_self_type %DivWith.Op.type.c4b, %DivWith.facet.f3b [concrete]
-// CHECK:STDOUT:   %.f19: type = fn_type_with_self_type %DivAssignWith.Op.type.629, %DivAssignWith.facet [concrete]
+// CHECK:STDOUT:   %DivAssignWith.facet: %DivAssignWith.type.bb3 = facet_value %C, (%DivAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.ec1: type = fn_type_with_self_type %DivWith.Op.type.c4b, %DivWith.facet.ff9 [concrete]
+// CHECK:STDOUT:   %.4fa: type = fn_type_with_self_type %DivAssignWith.Op.type.629, %DivAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.bb6 = impl_witness_access constants.%DivWith.impl_witness, element1 [concrete = constants.%C.as.DivWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.ec1 = impl_witness_access constants.%DivWith.impl_witness, element1 [concrete = constants.%C.as.DivWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.DivWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.f19 = impl_witness_access constants.%DivAssignWith.impl_witness, element0 [concrete = constants.%C.as.DivAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.4fa = impl_witness_access constants.%DivAssignWith.impl_witness, element0 [concrete = constants.%C.as.DivAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.DivAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/eq.carbon b/toolchain/check/testdata/operators/overloaded/eq.carbon
index 64fb2d1ad017..33d21a4c15a4 100644
--- a/toolchain/check/testdata/operators/overloaded/eq.carbon
+++ b/toolchain/check/testdata/operators/overloaded/eq.carbon
@@ -97,7 +97,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %EqWith.type.c2e: type = generic_interface_type @EqWith [concrete]
 // CHECK:STDOUT:   %EqWith.generic: %EqWith.type.c2e = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
-// CHECK:STDOUT:   %EqWith.type.04e: type = facet_type <@EqWith, @EqWith(%C)> [concrete]
+// CHECK:STDOUT:   %EqWith.type.8ad: type = facet_type <@EqWith, @EqWith(%C)> [concrete]
 // CHECK:STDOUT:   %EqWith.Equal.type.170: type = fn_type @EqWith.Equal, @EqWith(%C) [concrete]
 // CHECK:STDOUT:   %EqWith.NotEqual.type.694: type = fn_type @EqWith.NotEqual, @EqWith(%C) [concrete]
 // CHECK:STDOUT:   %EqWith.impl_witness: <witness> = impl_witness file.%EqWith.impl_witness_table [concrete]
@@ -108,13 +108,13 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %C.as.EqWith.impl.Equal: %C.as.EqWith.impl.Equal.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.as.EqWith.impl.NotEqual.type: type = fn_type @C.as.EqWith.impl.NotEqual [concrete]
 // CHECK:STDOUT:   %C.as.EqWith.impl.NotEqual: %C.as.EqWith.impl.NotEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %EqWith.facet: %EqWith.type.04e = facet_value %C, (%EqWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %EqWith.facet: %EqWith.type.8ad = facet_value %C, (%EqWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %TestEqual.type: type = fn_type @TestEqual [concrete]
 // CHECK:STDOUT:   %TestEqual: %TestEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.6b4: type = fn_type_with_self_type %EqWith.Equal.type.170, %EqWith.facet [concrete]
+// CHECK:STDOUT:   %.4b8: type = fn_type_with_self_type %EqWith.Equal.type.170, %EqWith.facet [concrete]
 // CHECK:STDOUT:   %TestNotEqual.type: type = fn_type @TestNotEqual [concrete]
 // CHECK:STDOUT:   %TestNotEqual: %TestNotEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.3b7: type = fn_type_with_self_type %EqWith.NotEqual.type.694, %EqWith.facet [concrete]
+// CHECK:STDOUT:   %.433: type = fn_type_with_self_type %EqWith.NotEqual.type.694, %EqWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -144,7 +144,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %EqWith.ref: %EqWith.type.c2e = name_ref EqWith, imports.%Core.EqWith [concrete = constants.%EqWith.generic]
 // CHECK:STDOUT:     %C.ref.loc6_23: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %EqWith.type: type = facet_type <@EqWith, @EqWith(constants.%C)> [concrete = constants.%EqWith.type.04e]
+// CHECK:STDOUT:     %EqWith.type: type = facet_type <@EqWith, @EqWith(constants.%C)> [concrete = constants.%EqWith.type.8ad]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %EqWith.impl_witness_table = impl_witness_table (@C.as.EqWith.impl.%C.as.EqWith.impl.Equal.decl, @C.as.EqWith.impl.%C.as.EqWith.impl.NotEqual.decl), @C.as.EqWith.impl [concrete]
 // CHECK:STDOUT:   %EqWith.impl_witness: <witness> = impl_witness %EqWith.impl_witness_table [concrete = constants.%EqWith.impl_witness]
@@ -277,7 +277,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.6b4 = impl_witness_access constants.%EqWith.impl_witness, element0 [concrete = constants.%C.as.EqWith.impl.Equal]
+// CHECK:STDOUT:   %impl.elem0: %.4b8 = impl_witness_access constants.%EqWith.impl_witness, element0 [concrete = constants.%C.as.EqWith.impl.Equal]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.EqWith.impl.Equal.call: init bool = call %bound_method(%a.ref, %b.ref)
 // CHECK:STDOUT:   %.loc12_16.1: bool = value_of_initializer %C.as.EqWith.impl.Equal.call
@@ -289,7 +289,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.3b7 = impl_witness_access constants.%EqWith.impl_witness, element1 [concrete = constants.%C.as.EqWith.impl.NotEqual]
+// CHECK:STDOUT:   %impl.elem1: %.433 = impl_witness_access constants.%EqWith.impl_witness, element1 [concrete = constants.%C.as.EqWith.impl.NotEqual]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   %C.as.EqWith.impl.NotEqual.call: init bool = call %bound_method(%a.ref, %b.ref)
 // CHECK:STDOUT:   %.loc16_16.1: bool = value_of_initializer %C.as.EqWith.impl.NotEqual.call
@@ -436,7 +436,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -444,7 +444,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -452,7 +452,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %EqWith.type.c2e: type = generic_interface_type @EqWith [concrete]
 // CHECK:STDOUT:   %EqWith.generic: %EqWith.type.c2e = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
-// CHECK:STDOUT:   %EqWith.type.04e: type = facet_type <@EqWith, @EqWith(%C)> [concrete]
+// CHECK:STDOUT:   %EqWith.type.8ad: type = facet_type <@EqWith, @EqWith(%C)> [concrete]
 // CHECK:STDOUT:   %EqWith.impl_witness: <witness> = impl_witness file.%EqWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
@@ -497,7 +497,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %EqWith.ref: %EqWith.type.c2e = name_ref EqWith, imports.%Core.EqWith [concrete = constants.%EqWith.generic]
 // CHECK:STDOUT:     %C.ref.loc7_23: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %EqWith.type: type = facet_type <@EqWith, @EqWith(constants.%C)> [concrete = constants.%EqWith.type.04e]
+// CHECK:STDOUT:     %EqWith.type: type = facet_type <@EqWith, @EqWith(constants.%C)> [concrete = constants.%EqWith.type.8ad]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %EqWith.impl_witness_table = impl_witness_table (@C.as.EqWith.impl.%C.as.EqWith.impl.Equal.decl, @C.as.EqWith.impl.%C.as.EqWith.impl.NotEqual.decl), @C.as.EqWith.impl [concrete]
 // CHECK:STDOUT:   %EqWith.impl_witness: <witness> = impl_witness %EqWith.impl_witness_table [concrete = constants.%EqWith.impl_witness]
@@ -628,7 +628,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -640,7 +640,7 @@ fn TestLhsBad(a: D, b: C) -> bool {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon b/toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon
index ed4c1f74ea8c..61fff438ef50 100644
--- a/toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon
+++ b/toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon
@@ -67,19 +67,19 @@ fn TestAddAssignNonRef(a: C, b: C) {
 // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %C, (%Inc.impl_witness) [concrete]
 // CHECK:STDOUT:   %AddAssignWith.type.fc6: type = generic_interface_type @AddAssignWith [concrete]
 // CHECK:STDOUT:   %AddAssignWith.generic: %AddAssignWith.type.fc6 = struct_value () [concrete]
-// CHECK:STDOUT:   %AddAssignWith.type.393: type = facet_type <@AddAssignWith, @AddAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %AddAssignWith.type.f0f: type = facet_type <@AddAssignWith, @AddAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %AddAssignWith.Op.type.5af: type = fn_type @AddAssignWith.Op, @AddAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness file.%AddAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
 // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.type: type = fn_type @C.as.AddAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op: %C.as.AddAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %AddAssignWith.facet: %AddAssignWith.type.393 = facet_value %C, (%AddAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %AddAssignWith.facet: %AddAssignWith.type.f0f = facet_value %C, (%AddAssignWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %TestIncNonRef.type: type = fn_type @TestIncNonRef [concrete]
 // CHECK:STDOUT:   %TestIncNonRef: %TestIncNonRef.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.bc7: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [concrete]
+// CHECK:STDOUT:   %.10e: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [concrete]
 // CHECK:STDOUT:   %TestAddAssignNonRef.type: type = fn_type @TestAddAssignNonRef [concrete]
 // CHECK:STDOUT:   %TestAddAssignNonRef: %TestAddAssignNonRef.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.e2d: type = fn_type_with_self_type %AddAssignWith.Op.type.5af, %AddAssignWith.facet [concrete]
+// CHECK:STDOUT:   %.98a: type = fn_type_with_self_type %AddAssignWith.Op.type.5af, %AddAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -116,7 +116,7 @@ fn TestAddAssignNonRef(a: C, b: C) {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %AddAssignWith.ref: %AddAssignWith.type.fc6 = name_ref AddAssignWith, imports.%Core.AddAssignWith [concrete = constants.%AddAssignWith.generic]
 // CHECK:STDOUT:     %C.ref.loc22_30: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %AddAssignWith.type: type = facet_type <@AddAssignWith, @AddAssignWith(constants.%C)> [concrete = constants.%AddAssignWith.type.393]
+// CHECK:STDOUT:     %AddAssignWith.type: type = facet_type <@AddAssignWith, @AddAssignWith(constants.%C)> [concrete = constants.%AddAssignWith.type.f0f]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %AddAssignWith.impl_witness_table = impl_witness_table (@C.as.AddAssignWith.impl.%C.as.AddAssignWith.impl.Op.decl), @C.as.AddAssignWith.impl [concrete]
 // CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness %AddAssignWith.impl_witness_table [concrete = constants.%AddAssignWith.impl_witness]
@@ -225,7 +225,7 @@ fn TestAddAssignNonRef(a: C, b: C) {
 // CHECK:STDOUT: fn @TestIncNonRef(%a.param: %C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
-// CHECK:STDOUT:   %impl.elem0: %.bc7 = impl_witness_access constants.%Inc.impl_witness, element0 [concrete = constants.%C.as.Inc.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.10e = impl_witness_access constants.%Inc.impl_witness, element0 [concrete = constants.%C.as.Inc.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc34: ref %C = temporary_storage
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc34
@@ -237,7 +237,7 @@ fn TestAddAssignNonRef(a: C, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.e2d = impl_witness_access constants.%AddAssignWith.impl_witness, element0 [concrete = constants.%C.as.AddAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.98a = impl_witness_access constants.%AddAssignWith.impl_witness, element0 [concrete = constants.%C.as.AddAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc45: ref %C = temporary_storage
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc45
diff --git a/toolchain/check/testdata/operators/overloaded/fail_no_impl.carbon b/toolchain/check/testdata/operators/overloaded/fail_no_impl.carbon
index 0bafcab7cfb2..42e96f2a7b93 100644
--- a/toolchain/check/testdata/operators/overloaded/fail_no_impl.carbon
+++ b/toolchain/check/testdata/operators/overloaded/fail_no_impl.carbon
@@ -52,7 +52,7 @@ fn TestRef(b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -164,7 +164,7 @@ fn TestRef(b: C) {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/operators/overloaded/implicit_as.carbon b/toolchain/check/testdata/operators/overloaded/implicit_as.carbon
index fb16b6d42e56..4b58318dcee5 100644
--- a/toolchain/check/testdata/operators/overloaded/implicit_as.carbon
+++ b/toolchain/check/testdata/operators/overloaded/implicit_as.carbon
@@ -49,7 +49,7 @@ fn Test() {
 // CHECK:STDOUT:   %X.elem: type = unbound_element_type %X, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.807: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.286: <witness> = impl_witness @X.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.d17: type = ptr_type %X [concrete]
 // CHECK:STDOUT:   %pattern_type.1c6: type = pattern_type %ptr.d17 [concrete]
 // CHECK:STDOUT:   %X.as.Destroy.impl.Op.type: type = fn_type @X.as.Destroy.impl.Op [concrete]
@@ -59,20 +59,20 @@ fn Test() {
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.ac8: type = facet_type <@ImplicitAs, @ImplicitAs(%X)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.d1b: type = facet_type <@ImplicitAs, @ImplicitAs(%X)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.665: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%X) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.aa3: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc19 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.713: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc19 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.019: type = pattern_type %X [concrete]
 // CHECK:STDOUT:   %i32.as.ImplicitAs.impl.Convert.type: type = fn_type @i32.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %i32.as.ImplicitAs.impl.Convert: %i32.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.d80: %ImplicitAs.type.ac8 = facet_value %i32, (%ImplicitAs.impl_witness.aa3) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.647: %ImplicitAs.type.d1b = facet_value %i32, (%ImplicitAs.impl_witness.713) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.b30: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc23 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.00a: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc23 [concrete]
 // CHECK:STDOUT:   %X.as.ImplicitAs.impl.Convert.type: type = fn_type @X.as.ImplicitAs.impl.Convert [concrete]
 // CHECK:STDOUT:   %X.as.ImplicitAs.impl.Convert: %X.as.ImplicitAs.impl.Convert.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.bf9: %ImplicitAs.type.205 = facet_value %X, (%ImplicitAs.impl_witness.b30) [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.abd: %ImplicitAs.type.e8c = facet_value %X, (%ImplicitAs.impl_witness.00a) [concrete]
 // CHECK:STDOUT:   %Sink_i32.type: type = fn_type @Sink_i32 [concrete]
 // CHECK:STDOUT:   %Sink_i32: %Sink_i32.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Sink_X.type: type = fn_type @Sink_X [concrete]
@@ -87,9 +87,9 @@ fn Test() {
 // CHECK:STDOUT:   %Test.type: type = fn_type @Test [concrete]
 // CHECK:STDOUT:   %Test: %Test.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Source.specific_fn.363: <specific function> = specific_function %Source, @Source(%X) [concrete]
-// CHECK:STDOUT:   %.2ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.bf9 [concrete]
+// CHECK:STDOUT:   %.cd7: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.abd [concrete]
 // CHECK:STDOUT:   %Source.specific_fn.cc7: <specific function> = specific_function %Source, @Source(%i32) [concrete]
-// CHECK:STDOUT:   %.9b4: type = fn_type_with_self_type %ImplicitAs.Convert.type.665, %ImplicitAs.facet.d80 [concrete]
+// CHECK:STDOUT:   %.f90: type = fn_type_with_self_type %ImplicitAs.Convert.type.665, %ImplicitAs.facet.647 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -122,20 +122,20 @@ fn Test() {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%X)> [concrete = constants.%ImplicitAs.type.ac8]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%X)> [concrete = constants.%ImplicitAs.type.d1b]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc19 = impl_witness_table (@i32.as.ImplicitAs.impl.%i32.as.ImplicitAs.impl.Convert.decl), @i32.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc19: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc19 [concrete = constants.%ImplicitAs.impl_witness.aa3]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc19: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc19 [concrete = constants.%ImplicitAs.impl_witness.713]
 // CHECK:STDOUT:   impl_decl @X.as.ImplicitAs.impl [concrete] {} {
 // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32)> [concrete = constants.%ImplicitAs.type.205]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%i32)> [concrete = constants.%ImplicitAs.type.e8c]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc23 = impl_witness_table (@X.as.ImplicitAs.impl.%X.as.ImplicitAs.impl.Convert.decl), @X.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc23: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc23 [concrete = constants.%ImplicitAs.impl_witness.b30]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc23: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc23 [concrete = constants.%ImplicitAs.impl_witness.00a]
 // CHECK:STDOUT:   %Sink_i32.decl: %Sink_i32.type = fn_decl @Sink_i32 [concrete = constants.%Sink_i32] {
 // CHECK:STDOUT:     %n.patt: %pattern_type.7ce = binding_pattern n [concrete]
 // CHECK:STDOUT:     %n.param_patt: %pattern_type.7ce = value_param_pattern %n.patt, call_param0 [concrete]
@@ -238,7 +238,7 @@ fn Test() {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%X [concrete = constants.%X]
 // CHECK:STDOUT:   impl_decl @X.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@X.as.Destroy.impl.%X.as.Destroy.impl.Op.decl), @X.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.807]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.286]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n [concrete = constants.%complete_type.54b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -301,7 +301,7 @@ fn Test() {
 // CHECK:STDOUT:   %Source.specific_fn.loc34: <specific function> = specific_function %Source.ref.loc34, @Source(constants.%X) [concrete = constants.%Source.specific_fn.363]
 // CHECK:STDOUT:   %.loc34_20.1: ref %X = temporary_storage
 // CHECK:STDOUT:   %Source.call.loc34: init %X = call %Source.specific_fn.loc34() to %.loc34_20.1
-// CHECK:STDOUT:   %impl.elem0.loc34: %.2ea = impl_witness_access constants.%ImplicitAs.impl_witness.b30, element0 [concrete = constants.%X.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %impl.elem0.loc34: %.cd7 = impl_witness_access constants.%ImplicitAs.impl_witness.00a, element0 [concrete = constants.%X.as.ImplicitAs.impl.Convert]
 // CHECK:STDOUT:   %bound_method.loc34: <bound method> = bound_method %Source.call.loc34, %impl.elem0.loc34
 // CHECK:STDOUT:   %.loc34_20.2: ref %X = temporary %.loc34_20.1, %Source.call.loc34
 // CHECK:STDOUT:   %.loc34_20.3: %X = bind_value %.loc34_20.2
@@ -315,7 +315,7 @@ fn Test() {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   %Source.specific_fn.loc35: <specific function> = specific_function %Source.ref.loc35, @Source(constants.%i32) [concrete = constants.%Source.specific_fn.cc7]
 // CHECK:STDOUT:   %Source.call.loc35: init %i32 = call %Source.specific_fn.loc35()
-// CHECK:STDOUT:   %impl.elem0.loc35: %.9b4 = impl_witness_access constants.%ImplicitAs.impl_witness.aa3, element0 [concrete = constants.%i32.as.ImplicitAs.impl.Convert]
+// CHECK:STDOUT:   %impl.elem0.loc35: %.f90 = impl_witness_access constants.%ImplicitAs.impl_witness.713, element0 [concrete = constants.%i32.as.ImplicitAs.impl.Convert]
 // CHECK:STDOUT:   %bound_method.loc35: <bound method> = bound_method %Source.call.loc35, %impl.elem0.loc35
 // CHECK:STDOUT:   %.loc35_20.1: ref %X = temporary_storage
 // CHECK:STDOUT:   %.loc35_20.2: %i32 = value_of_initializer %Source.call.loc35
diff --git a/toolchain/check/testdata/operators/overloaded/inc.carbon b/toolchain/check/testdata/operators/overloaded/inc.carbon
index 7eac14b016a6..480093c72565 100644
--- a/toolchain/check/testdata/operators/overloaded/inc.carbon
+++ b/toolchain/check/testdata/operators/overloaded/inc.carbon
@@ -41,7 +41,7 @@ fn TestOp() {
 // CHECK:STDOUT:   %C.as.Inc.impl.Op.type: type = fn_type @C.as.Inc.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Inc.impl.Op: %C.as.Inc.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %C, (%Inc.impl_witness) [concrete]
-// CHECK:STDOUT:   %.bc7: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [concrete]
+// CHECK:STDOUT:   %.10e: type = fn_type_with_self_type %Inc.Op.type, %Inc.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -51,7 +51,7 @@ fn TestOp() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %c.ref: ref %C = name_ref c, %c
-// CHECK:STDOUT:   %impl.elem0: %.bc7 = impl_witness_access constants.%Inc.impl_witness, element0 [concrete = constants.%C.as.Inc.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.10e = impl_witness_access constants.%Inc.impl_witness, element0 [concrete = constants.%C.as.Inc.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %addr.loc28: %ptr.019 = addr_of %c.ref
 // CHECK:STDOUT:   %C.as.Inc.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr.loc28)
diff --git a/toolchain/check/testdata/operators/overloaded/index.carbon b/toolchain/check/testdata/operators/overloaded/index.carbon
index 5a1b8312ea03..6137cae791b4 100644
--- a/toolchain/check/testdata/operators/overloaded/index.carbon
+++ b/toolchain/check/testdata/operators/overloaded/index.carbon
@@ -166,10 +166,10 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %IndexWith.type.68b: type = generic_interface_type @IndexWith [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %IndexWith.generic: %IndexWith.type.68b = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.type.b94: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic]
-// CHECK:STDOUT:   %Self: %IndexWith.type.b94 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %IndexWith.type.d27: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic]
+// CHECK:STDOUT:   %Self: %IndexWith.type.d27 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
-// CHECK:STDOUT:   %pattern_type.2ad: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %pattern_type.88a: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %SubscriptType [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %IndexWith.At.type: type = fn_type @IndexWith.At, @IndexWith(%SubscriptType) [symbolic]
@@ -194,18 +194,18 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %SubscriptType.loc4_21.1: type = bind_symbolic_name SubscriptType, 0 [symbolic = %SubscriptType.loc4_21.1 (constants.%SubscriptType)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType.loc4_21.1)> [symbolic = %IndexWith.type (constants.%IndexWith.type.b94)]
-// CHECK:STDOUT:   %Self.2: @IndexWith.%IndexWith.type (%IndexWith.type.b94) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType.loc4_21.1)> [symbolic = %IndexWith.type (constants.%IndexWith.type.d27)]
+// CHECK:STDOUT:   %Self.2: @IndexWith.%IndexWith.type (%IndexWith.type.d27) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:   %IndexWith.At.type: type = fn_type @IndexWith.At, @IndexWith(%SubscriptType.loc4_21.1) [symbolic = %IndexWith.At.type (constants.%IndexWith.At.type)]
 // CHECK:STDOUT:   %IndexWith.At: @IndexWith.%IndexWith.At.type (%IndexWith.At.type) = struct_value () [symbolic = %IndexWith.At (constants.%IndexWith.At)]
 // CHECK:STDOUT:   %IndexWith.assoc_type: type = assoc_entity_type @IndexWith, @IndexWith(%SubscriptType.loc4_21.1) [symbolic = %IndexWith.assoc_type (constants.%IndexWith.assoc_type)]
 // CHECK:STDOUT:   %assoc0.loc5_52.2: @IndexWith.%IndexWith.assoc_type (%IndexWith.assoc_type) = assoc_entity element0, %IndexWith.At.decl [symbolic = %assoc0.loc5_52.2 (constants.%assoc0)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
-// CHECK:STDOUT:     %Self.1: @IndexWith.%IndexWith.type (%IndexWith.type.b94) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
+// CHECK:STDOUT:     %Self.1: @IndexWith.%IndexWith.type (%IndexWith.type.d27) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %IndexWith.At.decl: @IndexWith.%IndexWith.At.type (%IndexWith.At.type) = fn_decl @IndexWith.At [symbolic = @IndexWith.%IndexWith.At (constants.%IndexWith.At)] {
-// CHECK:STDOUT:       %self.patt: @IndexWith.At.%pattern_type.loc5_9 (%pattern_type.2ad) = binding_pattern self [concrete]
-// CHECK:STDOUT:       %self.param_patt: @IndexWith.At.%pattern_type.loc5_9 (%pattern_type.2ad) = value_param_pattern %self.patt, call_param0 [concrete]
+// CHECK:STDOUT:       %self.patt: @IndexWith.At.%pattern_type.loc5_9 (%pattern_type.88a) = binding_pattern self [concrete]
+// CHECK:STDOUT:       %self.param_patt: @IndexWith.At.%pattern_type.loc5_9 (%pattern_type.88a) = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:       %subscript.patt: @IndexWith.At.%pattern_type.loc5_21 (%pattern_type.7dc) = binding_pattern subscript [concrete]
 // CHECK:STDOUT:       %subscript.param_patt: @IndexWith.At.%pattern_type.loc5_21 (%pattern_type.7dc) = value_param_pattern %subscript.patt, call_param1 [concrete]
 // CHECK:STDOUT:       %return.patt: %pattern_type.cb1 = return_slot_pattern [concrete]
@@ -215,8 +215,8 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:       %.loc5_51.2: type = converted %.loc5_51.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:       %self.param: @IndexWith.At.%Self.as_type.loc5_15.1 (%Self.as_type) = value_param call_param0
 // CHECK:STDOUT:       %.loc5_15.1: type = splice_block %.loc5_15.3 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)] {
-// CHECK:STDOUT:         %.loc5_15.2: @IndexWith.At.%IndexWith.type (%IndexWith.type.b94) = specific_constant @IndexWith.%Self.1, @IndexWith(constants.%SubscriptType) [symbolic = %Self (constants.%Self)]
-// CHECK:STDOUT:         %Self.ref: @IndexWith.At.%IndexWith.type (%IndexWith.type.b94) = name_ref Self, %.loc5_15.2 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %.loc5_15.2: @IndexWith.At.%IndexWith.type (%IndexWith.type.d27) = specific_constant @IndexWith.%Self.1, @IndexWith(constants.%SubscriptType) [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:         %Self.ref: @IndexWith.At.%IndexWith.type (%IndexWith.type.d27) = name_ref Self, %.loc5_15.2 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:         %Self.as_type.loc5_15.2: type = facet_access_type %Self.ref [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:         %.loc5_15.3: type = converted %Self.ref, %Self.as_type.loc5_15.2 [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)]
 // CHECK:STDOUT:       }
@@ -237,12 +237,12 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @IndexWith.At(@IndexWith.%SubscriptType.loc4_21.2: type, @IndexWith.%Self.1: @IndexWith.%IndexWith.type (%IndexWith.type.b94)) {
+// CHECK:STDOUT: generic fn @IndexWith.At(@IndexWith.%SubscriptType.loc4_21.2: type, @IndexWith.%Self.1: @IndexWith.%IndexWith.type (%IndexWith.type.d27)) {
 // CHECK:STDOUT:   %SubscriptType: type = bind_symbolic_name SubscriptType, 0 [symbolic = %SubscriptType (constants.%SubscriptType)]
-// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic = %IndexWith.type (constants.%IndexWith.type.b94)]
-// CHECK:STDOUT:   %Self: @IndexWith.At.%IndexWith.type (%IndexWith.type.b94) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
+// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic = %IndexWith.type (constants.%IndexWith.type.d27)]
+// CHECK:STDOUT:   %Self: @IndexWith.At.%IndexWith.type (%IndexWith.type.d27) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc5_15.1 (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.loc5_9: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type.loc5_9 (constants.%pattern_type.2ad)]
+// CHECK:STDOUT:   %pattern_type.loc5_9: type = pattern_type %Self.as_type.loc5_15.1 [symbolic = %pattern_type.loc5_9 (constants.%pattern_type.88a)]
 // CHECK:STDOUT:   %pattern_type.loc5_21: type = pattern_type %SubscriptType [symbolic = %pattern_type.loc5_21 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%self.param: @IndexWith.At.%Self.as_type.loc5_15.1 (%Self.as_type), %subscript.param: @IndexWith.At.%SubscriptType (%SubscriptType)) -> %empty_tuple.type;
@@ -254,10 +254,10 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @IndexWith.At(constants.%SubscriptType, constants.%Self) {
 // CHECK:STDOUT:   %SubscriptType => constants.%SubscriptType
-// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.b94
+// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.d27
 // CHECK:STDOUT:   %Self => constants.%Self
 // CHECK:STDOUT:   %Self.as_type.loc5_15.1 => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.loc5_9 => constants.%pattern_type.2ad
+// CHECK:STDOUT:   %pattern_type.loc5_9 => constants.%pattern_type.88a
 // CHECK:STDOUT:   %pattern_type.loc5_21 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -268,18 +268,18 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %IndexWith.type.504: type = generic_interface_type @IndexWith [concrete]
 // CHECK:STDOUT:   %IndexWith.generic: %IndexWith.type.504 = struct_value () [concrete]
 // CHECK:STDOUT:   %SubscriptType: type = bind_symbolic_name SubscriptType, 0 [symbolic]
-// CHECK:STDOUT:   %IndexWith.type.bd2: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic]
-// CHECK:STDOUT:   %Self.30a: %IndexWith.type.bd2 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %IndexWith.type.3b8: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic]
+// CHECK:STDOUT:   %Self.c95: %IndexWith.type.3b8 = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %IndexWith.At.type.cf4: type = fn_type @IndexWith.At, @IndexWith(%SubscriptType) [symbolic]
 // CHECK:STDOUT:   %IndexWith.At.281: %IndexWith.At.type.cf4 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.30a [symbolic]
-// CHECK:STDOUT:   %pattern_type.e1a: type = pattern_type %Self.as_type [symbolic]
+// CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self.c95 [symbolic]
+// CHECK:STDOUT:   %pattern_type.b6c: type = pattern_type %Self.as_type [symbolic]
 // CHECK:STDOUT:   %pattern_type.7dc: type = pattern_type %SubscriptType [symbolic]
 // CHECK:STDOUT:   %IndexWith.assoc_type.290: type = assoc_entity_type @IndexWith, @IndexWith(%SubscriptType) [symbolic]
 // CHECK:STDOUT:   %assoc0.af8: %IndexWith.assoc_type.290 = assoc_entity element0, imports.%Core.import_ref.e99 [symbolic]
-// CHECK:STDOUT:   %IndexWith.type.a51: type = facet_type <@IndexWith, @IndexWith(%empty_tuple.type)> [concrete]
-// CHECK:STDOUT:   %Self.8f0: %IndexWith.type.a51 = bind_symbolic_name Self, 1 [symbolic]
+// CHECK:STDOUT:   %IndexWith.type.4ea: type = facet_type <@IndexWith, @IndexWith(%empty_tuple.type)> [concrete]
+// CHECK:STDOUT:   %Self.0e9: %IndexWith.type.4ea = bind_symbolic_name Self, 1 [symbolic]
 // CHECK:STDOUT:   %IndexWith.At.type.969: type = fn_type @IndexWith.At, @IndexWith(%empty_tuple.type) [concrete]
 // CHECK:STDOUT:   %IndexWith.At.9b9: %IndexWith.At.type.969 = struct_value () [concrete]
 // CHECK:STDOUT:   %IndexWith.assoc_type.3d4: type = assoc_entity_type @IndexWith, @IndexWith(%empty_tuple.type) [concrete]
@@ -287,12 +287,12 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness file.%IndexWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.IndexWith.impl.At.type: type = fn_type @empty_tuple.type.as.IndexWith.impl.At [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.IndexWith.impl.At: %empty_tuple.type.as.IndexWith.impl.At.type = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.a51 = facet_value %empty_tuple.type, (%IndexWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.4ea = facet_value %empty_tuple.type, (%IndexWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %assoc0.e1e: %IndexWith.assoc_type.290 = assoc_entity element0, imports.%Core.import_ref.981 [symbolic]
-// CHECK:STDOUT:   %.ffc: type = fn_type_with_self_type %IndexWith.At.type.969, %IndexWith.facet [concrete]
+// CHECK:STDOUT:   %.92c: type = fn_type_with_self_type %IndexWith.At.type.969, %IndexWith.facet [concrete]
 // CHECK:STDOUT:   %empty_tuple.type.as.IndexWith.impl.At.bound: <bound method> = bound_method %empty_tuple, %empty_tuple.type.as.IndexWith.impl.At [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -303,11 +303,11 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.IndexWith: %IndexWith.type.504 = import_ref Core//core_wrong_arg_count, IndexWith, loaded [concrete = constants.%IndexWith.generic]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.1: type = import_ref Core//core_wrong_arg_count, loc4_21, loaded [symbolic = @IndexWith.%SubscriptType (constants.%SubscriptType)]
-// CHECK:STDOUT:   %Core.import_ref.68a = import_ref Core//core_wrong_arg_count, inst27 [no loc], unloaded
+// CHECK:STDOUT:   %Core.import_ref.3f3 = import_ref Core//core_wrong_arg_count, inst27 [no loc], unloaded
 // CHECK:STDOUT:   %Core.import_ref.613: @IndexWith.%IndexWith.assoc_type (%IndexWith.assoc_type.290) = import_ref Core//core_wrong_arg_count, loc5_52, loaded [symbolic = @IndexWith.%assoc0 (constants.%assoc0.e1e)]
 // CHECK:STDOUT:   %Core.At: @IndexWith.%IndexWith.At.type (%IndexWith.At.type.cf4) = import_ref Core//core_wrong_arg_count, At, loaded [symbolic = @IndexWith.%IndexWith.At (constants.%IndexWith.At.281)]
 // CHECK:STDOUT:   %Core.import_ref.5ab3ec.2: type = import_ref Core//core_wrong_arg_count, loc4_21, loaded [symbolic = @IndexWith.%SubscriptType (constants.%SubscriptType)]
-// CHECK:STDOUT:   %Core.import_ref.fb5: @IndexWith.%IndexWith.type (%IndexWith.type.bd2) = import_ref Core//core_wrong_arg_count, inst27 [no loc], loaded [symbolic = @IndexWith.%Self (constants.%Self.30a)]
+// CHECK:STDOUT:   %Core.import_ref.8ce: @IndexWith.%IndexWith.type (%IndexWith.type.3b8) = import_ref Core//core_wrong_arg_count, inst27 [no loc], loaded [symbolic = @IndexWith.%Self (constants.%Self.c95)]
 // CHECK:STDOUT:   %Core.import_ref.e99: @IndexWith.%IndexWith.At.type (%IndexWith.At.type.cf4) = import_ref Core//core_wrong_arg_count, loc5_52, loaded [symbolic = @IndexWith.%IndexWith.At (constants.%IndexWith.At.281)]
 // CHECK:STDOUT:   %Core.import_ref.981 = import_ref Core//core_wrong_arg_count, loc5_52, unloaded
 // CHECK:STDOUT: }
@@ -325,7 +325,7 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:     %IndexWith.ref: %IndexWith.type.504 = name_ref IndexWith, imports.%Core.IndexWith [concrete = constants.%IndexWith.generic]
 // CHECK:STDOUT:     %.loc6_28: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:     %.loc6_29: type = converted %.loc6_28, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%empty_tuple.type)> [concrete = constants.%IndexWith.type.a51]
+// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%empty_tuple.type)> [concrete = constants.%IndexWith.type.4ea]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %IndexWith.impl_witness_table = impl_witness_table (@empty_tuple.type.as.IndexWith.impl.%empty_tuple.type.as.IndexWith.impl.At.decl), @empty_tuple.type.as.IndexWith.impl [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness %IndexWith.impl_witness_table [concrete = constants.%IndexWith.impl_witness]
@@ -336,8 +336,8 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %SubscriptType: type = bind_symbolic_name SubscriptType, 0 [symbolic = %SubscriptType (constants.%SubscriptType)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic = %IndexWith.type (constants.%IndexWith.type.bd2)]
-// CHECK:STDOUT:   %Self: @IndexWith.%IndexWith.type (%IndexWith.type.bd2) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.30a)]
+// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic = %IndexWith.type (constants.%IndexWith.type.3b8)]
+// CHECK:STDOUT:   %Self: @IndexWith.%IndexWith.type (%IndexWith.type.3b8) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.c95)]
 // CHECK:STDOUT:   %IndexWith.At.type: type = fn_type @IndexWith.At, @IndexWith(%SubscriptType) [symbolic = %IndexWith.At.type (constants.%IndexWith.At.type.cf4)]
 // CHECK:STDOUT:   %IndexWith.At: @IndexWith.%IndexWith.At.type (%IndexWith.At.type.cf4) = struct_value () [symbolic = %IndexWith.At (constants.%IndexWith.At.281)]
 // CHECK:STDOUT:   %IndexWith.assoc_type: type = assoc_entity_type @IndexWith, @IndexWith(%SubscriptType) [symbolic = %IndexWith.assoc_type (constants.%IndexWith.assoc_type.290)]
@@ -345,7 +345,7 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     .Self = imports.%Core.import_ref.68a
+// CHECK:STDOUT:     .Self = imports.%Core.import_ref.3f3
 // CHECK:STDOUT:     .At = imports.%Core.import_ref.613
 // CHECK:STDOUT:     witness = (imports.%Core.At)
 // CHECK:STDOUT:   }
@@ -380,12 +380,12 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   witness = file.%IndexWith.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @IndexWith.At(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.fb5: @IndexWith.%IndexWith.type (%IndexWith.type.bd2)) [from "core_wrong_arg_count.carbon"] {
+// CHECK:STDOUT: generic fn @IndexWith.At(imports.%Core.import_ref.5ab3ec.2: type, imports.%Core.import_ref.8ce: @IndexWith.%IndexWith.type (%IndexWith.type.3b8)) [from "core_wrong_arg_count.carbon"] {
 // CHECK:STDOUT:   %SubscriptType: type = bind_symbolic_name SubscriptType, 0 [symbolic = %SubscriptType (constants.%SubscriptType)]
-// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic = %IndexWith.type (constants.%IndexWith.type.bd2)]
-// CHECK:STDOUT:   %Self: @IndexWith.At.%IndexWith.type (%IndexWith.type.bd2) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.30a)]
+// CHECK:STDOUT:   %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(%SubscriptType)> [symbolic = %IndexWith.type (constants.%IndexWith.type.3b8)]
+// CHECK:STDOUT:   %Self: @IndexWith.At.%IndexWith.type (%IndexWith.type.3b8) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.c95)]
 // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic = %Self.as_type (constants.%Self.as_type)]
-// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.e1a)]
+// CHECK:STDOUT:   %pattern_type.1: type = pattern_type %Self.as_type [symbolic = %pattern_type.1 (constants.%pattern_type.b6c)]
 // CHECK:STDOUT:   %pattern_type.2: type = pattern_type %SubscriptType [symbolic = %pattern_type.2 (constants.%pattern_type.7dc)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn;
@@ -407,7 +407,7 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %.loc12_11.2: %empty_tuple.type = converted %.loc12_11.1, %empty_tuple.loc12_11 [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %empty_tuple.loc12_14: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc12_15: %empty_tuple.type = converted %.loc12_14, %empty_tuple.loc12_14 [concrete = constants.%empty_tuple]
-// CHECK:STDOUT:   %impl.elem0: %.ffc = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.IndexWith.impl.At]
+// CHECK:STDOUT:   %impl.elem0: %.92c = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%empty_tuple.type.as.IndexWith.impl.At]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc12_11.2, %impl.elem0 [concrete = constants.%empty_tuple.type.as.IndexWith.impl.At.bound]
 // CHECK:STDOUT:   %empty_tuple.type.as.IndexWith.impl.At.call: init %empty_tuple.type = call %bound_method(%.loc12_11.2, %.loc12_15)
 // CHECK:STDOUT:   return
@@ -417,12 +417,12 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %SubscriptType => constants.%SubscriptType
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: specific @IndexWith.At(constants.%SubscriptType, constants.%Self.30a) {
+// CHECK:STDOUT: specific @IndexWith.At(constants.%SubscriptType, constants.%Self.c95) {
 // CHECK:STDOUT:   %SubscriptType => constants.%SubscriptType
-// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.bd2
-// CHECK:STDOUT:   %Self => constants.%Self.30a
+// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.3b8
+// CHECK:STDOUT:   %Self => constants.%Self.c95
 // CHECK:STDOUT:   %Self.as_type => constants.%Self.as_type
-// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.e1a
+// CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.b6c
 // CHECK:STDOUT:   %pattern_type.2 => constants.%pattern_type.7dc
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -430,8 +430,8 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %SubscriptType => constants.%empty_tuple.type
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.a51
-// CHECK:STDOUT:   %Self => constants.%Self.8f0
+// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.4ea
+// CHECK:STDOUT:   %Self => constants.%Self.0e9
 // CHECK:STDOUT:   %IndexWith.At.type => constants.%IndexWith.At.type.969
 // CHECK:STDOUT:   %IndexWith.At => constants.%IndexWith.At.9b9
 // CHECK:STDOUT:   %IndexWith.assoc_type => constants.%IndexWith.assoc_type.3d4
@@ -440,7 +440,7 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @IndexWith.At(constants.%empty_tuple.type, constants.%IndexWith.facet) {
 // CHECK:STDOUT:   %SubscriptType => constants.%empty_tuple.type
-// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.a51
+// CHECK:STDOUT:   %IndexWith.type => constants.%IndexWith.type.4ea
 // CHECK:STDOUT:   %Self => constants.%IndexWith.facet
 // CHECK:STDOUT:   %Self.as_type => constants.%empty_tuple.type
 // CHECK:STDOUT:   %pattern_type.1 => constants.%pattern_type.cb1
diff --git a/toolchain/check/testdata/operators/overloaded/index_with_prelude.carbon b/toolchain/check/testdata/operators/overloaded/index_with_prelude.carbon
index 537eec452c60..94330c0b488b 100644
--- a/toolchain/check/testdata/operators/overloaded/index_with_prelude.carbon
+++ b/toolchain/check/testdata/operators/overloaded/index_with_prelude.carbon
@@ -87,7 +87,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -95,20 +95,20 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ElementType.e6b: type = class_type @ElementType [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b20: <witness> = impl_witness @ElementType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6dd: <witness> = impl_witness @ElementType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e72: type = ptr_type %ElementType.e6b [concrete]
 // CHECK:STDOUT:   %pattern_type.b78: type = pattern_type %ptr.e72 [concrete]
 // CHECK:STDOUT:   %ElementType.as.Destroy.impl.Op.type: type = fn_type @ElementType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ElementType.as.Destroy.impl.Op: %ElementType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %SubscriptType.8ee: type = class_type @SubscriptType [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.63e: <witness> = impl_witness @SubscriptType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.899: <witness> = impl_witness @SubscriptType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.627: type = ptr_type %SubscriptType.8ee [concrete]
 // CHECK:STDOUT:   %pattern_type.17d: type = pattern_type %ptr.627 [concrete]
 // CHECK:STDOUT:   %SubscriptType.as.Destroy.impl.Op.type: type = fn_type @SubscriptType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %SubscriptType.as.Destroy.impl.Op: %SubscriptType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %IndexWith.type.504: type = generic_interface_type @IndexWith [concrete]
 // CHECK:STDOUT:   %IndexWith.generic: %IndexWith.type.504 = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.type.e80: type = facet_type <@IndexWith, @IndexWith(%SubscriptType.8ee, %ElementType.e6b)> [concrete]
+// CHECK:STDOUT:   %IndexWith.type.b31: type = facet_type <@IndexWith, @IndexWith(%SubscriptType.8ee, %ElementType.e6b)> [concrete]
 // CHECK:STDOUT:   %IndexWith.At.type.b3f: type = fn_type @IndexWith.At, @IndexWith(%SubscriptType.8ee, %ElementType.e6b) [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness file.%IndexWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
@@ -116,11 +116,11 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %pattern_type.c39: type = pattern_type %ElementType.e6b [concrete]
 // CHECK:STDOUT:   %C.as.IndexWith.impl.At.type: type = fn_type @C.as.IndexWith.impl.At [concrete]
 // CHECK:STDOUT:   %C.as.IndexWith.impl.At: %C.as.IndexWith.impl.At.type = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.e80 = facet_value %C, (%IndexWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.b31 = facet_value %C, (%IndexWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %ElementType.val: %ElementType.e6b = struct_value () [concrete]
 // CHECK:STDOUT:   %SubscriptType.val: %SubscriptType.8ee = struct_value () [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
-// CHECK:STDOUT:   %.d94: type = fn_type_with_self_type %IndexWith.At.type.b3f, %IndexWith.facet [concrete]
+// CHECK:STDOUT:   %.85f: type = fn_type_with_self_type %IndexWith.At.type.b3f, %IndexWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -154,7 +154,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:     %IndexWith.ref: %IndexWith.type.504 = name_ref IndexWith, imports.%Core.IndexWith [concrete = constants.%IndexWith.generic]
 // CHECK:STDOUT:     %SubscriptType.ref: type = name_ref SubscriptType, file.%SubscriptType.decl [concrete = constants.%SubscriptType.8ee]
 // CHECK:STDOUT:     %ElementType.ref: type = name_ref ElementType, file.%ElementType.decl [concrete = constants.%ElementType.e6b]
-// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%SubscriptType.8ee, constants.%ElementType.e6b)> [concrete = constants.%IndexWith.type.e80]
+// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%SubscriptType.8ee, constants.%ElementType.e6b)> [concrete = constants.%IndexWith.type.b31]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %IndexWith.impl_witness_table = impl_witness_table (@C.as.IndexWith.impl.%C.as.IndexWith.impl.At.decl), @C.as.IndexWith.impl [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness %IndexWith.impl_witness_table [concrete = constants.%IndexWith.impl_witness]
@@ -266,7 +266,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -278,7 +278,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ElementType.e6b [concrete = constants.%ElementType.e6b]
 // CHECK:STDOUT:   impl_decl @ElementType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ElementType.as.Destroy.impl.%ElementType.as.Destroy.impl.Op.decl), @ElementType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b20]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6dd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -290,7 +290,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SubscriptType.8ee [concrete = constants.%SubscriptType.8ee]
 // CHECK:STDOUT:   impl_decl @SubscriptType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SubscriptType.as.Destroy.impl.%SubscriptType.as.Destroy.impl.Op.decl), @SubscriptType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.63e]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.899]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -318,7 +318,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %.loc15: %empty_struct_type = struct_literal ()
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, file.%c
 // CHECK:STDOUT:   %s.ref: %SubscriptType.8ee = name_ref s, file.%s
-// CHECK:STDOUT:   %impl.elem0: %.d94 = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%C.as.IndexWith.impl.At]
+// CHECK:STDOUT:   %impl.elem0: %.85f = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%C.as.IndexWith.impl.At]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc16: ref %ElementType.e6b = temporary_storage
 // CHECK:STDOUT:   %C.as.IndexWith.impl.At.call: init %ElementType.e6b = call %bound_method(%c.ref, %s.ref) to %.loc16
@@ -336,42 +336,42 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %tuple.type.d07: type = tuple_type (%i32, %i32) [concrete]
 // CHECK:STDOUT:   %IndexWith.type.504: type = generic_interface_type @IndexWith [concrete]
 // CHECK:STDOUT:   %IndexWith.generic: %IndexWith.type.504 = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.type.917: type = facet_type <@IndexWith, @IndexWith(%i32, %i32)> [concrete]
+// CHECK:STDOUT:   %IndexWith.type.d1f: type = facet_type <@IndexWith, @IndexWith(%i32, %i32)> [concrete]
 // CHECK:STDOUT:   %IndexWith.At.type.d77: type = fn_type @IndexWith.At, @IndexWith(%i32, %i32) [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness file.%IndexWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.511: type = pattern_type %tuple.type.d07 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %tuple.type.as.IndexWith.impl.At.type: type = fn_type @tuple.type.as.IndexWith.impl.At [concrete]
 // CHECK:STDOUT:   %tuple.type.as.IndexWith.impl.At: %tuple.type.as.IndexWith.impl.At.type = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.917 = facet_value %tuple.type.d07, (%IndexWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.d1f = facet_value %tuple.type.d07, (%IndexWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To.c80) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_5.0f6) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
-// CHECK:STDOUT:   %.2dc: type = fn_type_with_self_type %IndexWith.At.type.d77, %IndexWith.facet [concrete]
+// CHECK:STDOUT:   %.e51: type = fn_type_with_self_type %IndexWith.At.type.d77, %IndexWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -385,8 +385,8 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.IndexWith: %IndexWith.type.504 = import_ref Core//prelude/operators/index, IndexWith, loaded [concrete = constants.%IndexWith.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/types/int, loc20_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -409,7 +409,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:     %i32.loc4_35: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %int_32.loc4_40: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:     %i32.loc4_40: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%i32, constants.%i32)> [concrete = constants.%IndexWith.type.917]
+// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%i32, constants.%i32)> [concrete = constants.%IndexWith.type.d1f]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %IndexWith.impl_witness_table = impl_witness_table (@tuple.type.as.IndexWith.impl.%tuple.type.as.IndexWith.impl.At.decl), @tuple.type.as.IndexWith.impl [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness %IndexWith.impl_witness_table [concrete = constants.%IndexWith.impl_witness]
@@ -424,17 +424,17 @@ let x: i32 = c[0];
 // CHECK:STDOUT:     %.loc10_17.2: %tuple.type.24b = tuple_literal (%i32.loc10_9, %i32.loc10_14)
 // CHECK:STDOUT:     %.loc10_17.3: type = converted %.loc10_17.2, constants.%tuple.type.d07 [concrete = constants.%tuple.type.d07]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc10_26.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_26.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0.loc10_26.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc10_26.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_26.1: <bound method> = bound_method @__global_init.%int_1, %impl.elem0.loc10_26.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc10_26.1: <specific function> = specific_function %impl.elem0.loc10_26.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_26.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn.loc10_26.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc10_26.2: <bound method> = bound_method @__global_init.%int_1, %specific_fn.loc10_26.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_26.1: init %i32 = call %bound_method.loc10_26.2(@__global_init.%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc10_26.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_26.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc10_26.2: %i32 = converted @__global_init.%int_1, %.loc10_26.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc10_26.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_26.3: <bound method> = bound_method @__global_init.%int_5, %impl.elem0.loc10_26.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc10_26.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_26.3: <bound method> = bound_method @__global_init.%int_5, %impl.elem0.loc10_26.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc10_26.2: <specific function> = specific_function %impl.elem0.loc10_26.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_26.4: <bound method> = bound_method @__global_init.%int_5, %specific_fn.loc10_26.2 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc10_26.4: <bound method> = bound_method @__global_init.%int_5, %specific_fn.loc10_26.2 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_26.2: init %i32 = call %bound_method.loc10_26.4(@__global_init.%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc10_26.3: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10_26.2 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc10_26.4: %i32 = converted @__global_init.%int_5, %.loc10_26.3 [concrete = constants.%int_5.0f6]
@@ -497,14 +497,14 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %.loc10: %tuple.type.f94 = tuple_literal (%int_1, %int_5)
 // CHECK:STDOUT:   %s.ref: %tuple.type.d07 = name_ref s, file.%s
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc11_17.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc11_17.1: <bound method> = bound_method %int_0, %impl.elem0.loc11_17.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc11_17.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc11_17.1: <bound method> = bound_method %int_0, %impl.elem0.loc11_17.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0.loc11_17.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc11_17.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc11_17.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc11_17.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc11_17.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc11_17.2: %i32 = converted %int_0, %.loc11_17.1 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %impl.elem0.loc11_17.2: %.2dc = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%tuple.type.as.IndexWith.impl.At]
+// CHECK:STDOUT:   %impl.elem0.loc11_17.2: %.e51 = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%tuple.type.as.IndexWith.impl.At]
 // CHECK:STDOUT:   %bound_method.loc11_17.3: <bound method> = bound_method %s.ref, %impl.elem0.loc11_17.2
 // CHECK:STDOUT:   %tuple.type.as.IndexWith.impl.At.call: init %i32 = call %bound_method.loc11_17.3(%s.ref, %.loc11_17.2)
 // CHECK:STDOUT:   return
@@ -516,7 +516,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -524,20 +524,20 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %ElementType.e6b: type = class_type @ElementType [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.b20: <witness> = impl_witness @ElementType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.6dd: <witness> = impl_witness @ElementType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.e72: type = ptr_type %ElementType.e6b [concrete]
 // CHECK:STDOUT:   %pattern_type.b78: type = pattern_type %ptr.e72 [concrete]
 // CHECK:STDOUT:   %ElementType.as.Destroy.impl.Op.type: type = fn_type @ElementType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %ElementType.as.Destroy.impl.Op: %ElementType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %SubscriptType.8ee: type = class_type @SubscriptType [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.63e: <witness> = impl_witness @SubscriptType.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.899: <witness> = impl_witness @SubscriptType.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.627: type = ptr_type %SubscriptType.8ee [concrete]
 // CHECK:STDOUT:   %pattern_type.17d: type = pattern_type %ptr.627 [concrete]
 // CHECK:STDOUT:   %SubscriptType.as.Destroy.impl.Op.type: type = fn_type @SubscriptType.as.Destroy.impl.Op [concrete]
 // CHECK:STDOUT:   %SubscriptType.as.Destroy.impl.Op: %SubscriptType.as.Destroy.impl.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %IndexWith.type.504: type = generic_interface_type @IndexWith [concrete]
 // CHECK:STDOUT:   %IndexWith.generic: %IndexWith.type.504 = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.type.e80: type = facet_type <@IndexWith, @IndexWith(%SubscriptType.8ee, %ElementType.e6b)> [concrete]
+// CHECK:STDOUT:   %IndexWith.type.b31: type = facet_type <@IndexWith, @IndexWith(%SubscriptType.8ee, %ElementType.e6b)> [concrete]
 // CHECK:STDOUT:   %IndexWith.At.type.b3f: type = fn_type @IndexWith.At, @IndexWith(%SubscriptType.8ee, %ElementType.e6b) [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness file.%IndexWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
@@ -545,13 +545,13 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %pattern_type.c39: type = pattern_type %ElementType.e6b [concrete]
 // CHECK:STDOUT:   %C.as.IndexWith.impl.At.type: type = fn_type @C.as.IndexWith.impl.At [concrete]
 // CHECK:STDOUT:   %C.as.IndexWith.impl.At: %C.as.IndexWith.impl.At.type = struct_value () [concrete]
-// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.e80 = facet_value %C, (%IndexWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %IndexWith.facet: %IndexWith.type.b31 = facet_value %C, (%IndexWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %ElementType.val: %ElementType.e6b = struct_value () [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value () [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %.d94: type = fn_type_with_self_type %IndexWith.At.type.b3f, %IndexWith.facet [concrete]
+// CHECK:STDOUT:   %.85f: type = fn_type_with_self_type %IndexWith.At.type.b3f, %IndexWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -586,7 +586,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:     %IndexWith.ref: %IndexWith.type.504 = name_ref IndexWith, imports.%Core.IndexWith [concrete = constants.%IndexWith.generic]
 // CHECK:STDOUT:     %SubscriptType.ref: type = name_ref SubscriptType, file.%SubscriptType.decl [concrete = constants.%SubscriptType.8ee]
 // CHECK:STDOUT:     %ElementType.ref: type = name_ref ElementType, file.%ElementType.decl [concrete = constants.%ElementType.e6b]
-// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%SubscriptType.8ee, constants.%ElementType.e6b)> [concrete = constants.%IndexWith.type.e80]
+// CHECK:STDOUT:     %IndexWith.type: type = facet_type <@IndexWith, @IndexWith(constants.%SubscriptType.8ee, constants.%ElementType.e6b)> [concrete = constants.%IndexWith.type.b31]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %IndexWith.impl_witness_table = impl_witness_table (@C.as.IndexWith.impl.%C.as.IndexWith.impl.At.decl), @C.as.IndexWith.impl [concrete]
 // CHECK:STDOUT:   %IndexWith.impl_witness: <witness> = impl_witness %IndexWith.impl_witness_table [concrete = constants.%IndexWith.impl_witness]
@@ -688,7 +688,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -700,7 +700,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%ElementType.e6b [concrete = constants.%ElementType.e6b]
 // CHECK:STDOUT:   impl_decl @ElementType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@ElementType.as.Destroy.impl.%ElementType.as.Destroy.impl.Op.decl), @ElementType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.b20]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.6dd]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -712,7 +712,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%SubscriptType.8ee [concrete = constants.%SubscriptType.8ee]
 // CHECK:STDOUT:   impl_decl @SubscriptType.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@SubscriptType.as.Destroy.impl.%SubscriptType.as.Destroy.impl.Op.decl), @SubscriptType.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.63e]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.899]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -740,7 +740,7 @@ let x: i32 = c[0];
 // CHECK:STDOUT:   %c.ref: %C = name_ref c, file.%c
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
 // CHECK:STDOUT:   %.loc22_25.1: %SubscriptType.8ee = converted %int_0, <error> [concrete = <error>]
-// CHECK:STDOUT:   %impl.elem0: %.d94 = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%C.as.IndexWith.impl.At]
+// CHECK:STDOUT:   %impl.elem0: %.85f = impl_witness_access constants.%IndexWith.impl_witness, element0 [concrete = constants.%C.as.IndexWith.impl.At]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
 // CHECK:STDOUT:   %.loc22_25.2: ref %ElementType.e6b = temporary_storage
 // CHECK:STDOUT:   %C.as.IndexWith.impl.At.call: init %ElementType.e6b = call %bound_method(%c.ref, <error>) to %.loc22_25.2
diff --git a/toolchain/check/testdata/operators/overloaded/left_shift.carbon b/toolchain/check/testdata/operators/overloaded/left_shift.carbon
index fcd92265ae60..227a78e5b187 100644
--- a/toolchain/check/testdata/operators/overloaded/left_shift.carbon
+++ b/toolchain/check/testdata/operators/overloaded/left_shift.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %LeftShiftWith.type.f92: type = facet_type <@LeftShiftWith, @LeftShiftWith(%C)> [concrete]
+// CHECK:STDOUT:   %LeftShiftWith.type.498: type = facet_type <@LeftShiftWith, @LeftShiftWith(%C)> [concrete]
 // CHECK:STDOUT:   %LeftShiftWith.Op.type.097: type = fn_type @LeftShiftWith.Op, @LeftShiftWith(%C) [concrete]
 // CHECK:STDOUT:   %LeftShiftWith.impl_witness: <witness> = impl_witness file.%LeftShiftWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.LeftShiftWith.impl.Op.type: type = fn_type @C.as.LeftShiftWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.LeftShiftWith.impl.Op: %C.as.LeftShiftWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %LeftShiftWith.facet.662: %LeftShiftWith.type.f92 = facet_value %C, (%LeftShiftWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %LeftShiftAssignWith.type.56d: type = facet_type <@LeftShiftAssignWith, @LeftShiftAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %LeftShiftWith.facet.ec9: %LeftShiftWith.type.498 = facet_value %C, (%LeftShiftWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %LeftShiftAssignWith.type.b94: type = facet_type <@LeftShiftAssignWith, @LeftShiftAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %LeftShiftAssignWith.Op.type.30f: type = fn_type @LeftShiftAssignWith.Op, @LeftShiftAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %LeftShiftAssignWith.impl_witness: <witness> = impl_witness file.%LeftShiftAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.LeftShiftAssignWith.impl.Op.type: type = fn_type @C.as.LeftShiftAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.LeftShiftAssignWith.impl.Op: %C.as.LeftShiftAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %LeftShiftAssignWith.facet: %LeftShiftAssignWith.type.56d = facet_value %C, (%LeftShiftAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.cd9: type = fn_type_with_self_type %LeftShiftWith.Op.type.097, %LeftShiftWith.facet.662 [concrete]
-// CHECK:STDOUT:   %.97b: type = fn_type_with_self_type %LeftShiftAssignWith.Op.type.30f, %LeftShiftAssignWith.facet [concrete]
+// CHECK:STDOUT:   %LeftShiftAssignWith.facet: %LeftShiftAssignWith.type.b94 = facet_value %C, (%LeftShiftAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.ae7: type = fn_type_with_self_type %LeftShiftWith.Op.type.097, %LeftShiftWith.facet.ec9 [concrete]
+// CHECK:STDOUT:   %.1f4: type = fn_type_with_self_type %LeftShiftAssignWith.Op.type.30f, %LeftShiftAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.cd9 = impl_witness_access constants.%LeftShiftWith.impl_witness, element1 [concrete = constants.%C.as.LeftShiftWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.ae7 = impl_witness_access constants.%LeftShiftWith.impl_witness, element1 [concrete = constants.%C.as.LeftShiftWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.LeftShiftWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.97b = impl_witness_access constants.%LeftShiftAssignWith.impl_witness, element0 [concrete = constants.%C.as.LeftShiftAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.1f4 = impl_witness_access constants.%LeftShiftAssignWith.impl_witness, element0 [concrete = constants.%C.as.LeftShiftAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.LeftShiftAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/mod.carbon b/toolchain/check/testdata/operators/overloaded/mod.carbon
index bf7de0a80fa9..5be98f449831 100644
--- a/toolchain/check/testdata/operators/overloaded/mod.carbon
+++ b/toolchain/check/testdata/operators/overloaded/mod.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %ModWith.type.4d0: type = facet_type <@ModWith, @ModWith(%C)> [concrete]
+// CHECK:STDOUT:   %ModWith.type.246: type = facet_type <@ModWith, @ModWith(%C)> [concrete]
 // CHECK:STDOUT:   %ModWith.Op.type.140: type = fn_type @ModWith.Op, @ModWith(%C) [concrete]
 // CHECK:STDOUT:   %ModWith.impl_witness: <witness> = impl_witness file.%ModWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.ModWith.impl.Op.type: type = fn_type @C.as.ModWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.ModWith.impl.Op: %C.as.ModWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ModWith.facet.517: %ModWith.type.4d0 = facet_value %C, (%ModWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %ModAssignWith.type.8eb: type = facet_type <@ModAssignWith, @ModAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %ModWith.facet.151: %ModWith.type.246 = facet_value %C, (%ModWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %ModAssignWith.type.0a3: type = facet_type <@ModAssignWith, @ModAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %ModAssignWith.Op.type.dd0: type = fn_type @ModAssignWith.Op, @ModAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %ModAssignWith.impl_witness: <witness> = impl_witness file.%ModAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.ModAssignWith.impl.Op.type: type = fn_type @C.as.ModAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.ModAssignWith.impl.Op: %C.as.ModAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %ModAssignWith.facet: %ModAssignWith.type.8eb = facet_value %C, (%ModAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.f08: type = fn_type_with_self_type %ModWith.Op.type.140, %ModWith.facet.517 [concrete]
-// CHECK:STDOUT:   %.f3c: type = fn_type_with_self_type %ModAssignWith.Op.type.dd0, %ModAssignWith.facet [concrete]
+// CHECK:STDOUT:   %ModAssignWith.facet: %ModAssignWith.type.0a3 = facet_value %C, (%ModAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.670: type = fn_type_with_self_type %ModWith.Op.type.140, %ModWith.facet.151 [concrete]
+// CHECK:STDOUT:   %.6c4: type = fn_type_with_self_type %ModAssignWith.Op.type.dd0, %ModAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.f08 = impl_witness_access constants.%ModWith.impl_witness, element1 [concrete = constants.%C.as.ModWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.670 = impl_witness_access constants.%ModWith.impl_witness, element1 [concrete = constants.%C.as.ModWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.ModWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.f3c = impl_witness_access constants.%ModAssignWith.impl_witness, element0 [concrete = constants.%C.as.ModAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.6c4 = impl_witness_access constants.%ModAssignWith.impl_witness, element0 [concrete = constants.%C.as.ModAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.ModAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/mul.carbon b/toolchain/check/testdata/operators/overloaded/mul.carbon
index 865d259e8fb0..c93902193080 100644
--- a/toolchain/check/testdata/operators/overloaded/mul.carbon
+++ b/toolchain/check/testdata/operators/overloaded/mul.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %MulWith.type.3ed: type = facet_type <@MulWith, @MulWith(%C)> [concrete]
+// CHECK:STDOUT:   %MulWith.type.210: type = facet_type <@MulWith, @MulWith(%C)> [concrete]
 // CHECK:STDOUT:   %MulWith.Op.type.2c9: type = fn_type @MulWith.Op, @MulWith(%C) [concrete]
 // CHECK:STDOUT:   %MulWith.impl_witness: <witness> = impl_witness file.%MulWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.MulWith.impl.Op.type: type = fn_type @C.as.MulWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.MulWith.impl.Op: %C.as.MulWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %MulWith.facet.6c2: %MulWith.type.3ed = facet_value %C, (%MulWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %MulAssignWith.type.a15: type = facet_type <@MulAssignWith, @MulAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %MulWith.facet.45f: %MulWith.type.210 = facet_value %C, (%MulWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %MulAssignWith.type.199: type = facet_type <@MulAssignWith, @MulAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %MulAssignWith.Op.type.5c8: type = fn_type @MulAssignWith.Op, @MulAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %MulAssignWith.impl_witness: <witness> = impl_witness file.%MulAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.MulAssignWith.impl.Op.type: type = fn_type @C.as.MulAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.MulAssignWith.impl.Op: %C.as.MulAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %MulAssignWith.facet: %MulAssignWith.type.a15 = facet_value %C, (%MulAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.6ce: type = fn_type_with_self_type %MulWith.Op.type.2c9, %MulWith.facet.6c2 [concrete]
-// CHECK:STDOUT:   %.5e8: type = fn_type_with_self_type %MulAssignWith.Op.type.5c8, %MulAssignWith.facet [concrete]
+// CHECK:STDOUT:   %MulAssignWith.facet: %MulAssignWith.type.199 = facet_value %C, (%MulAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.88c: type = fn_type_with_self_type %MulWith.Op.type.2c9, %MulWith.facet.45f [concrete]
+// CHECK:STDOUT:   %.09f: type = fn_type_with_self_type %MulAssignWith.Op.type.5c8, %MulAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.6ce = impl_witness_access constants.%MulWith.impl_witness, element1 [concrete = constants.%C.as.MulWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.88c = impl_witness_access constants.%MulWith.impl_witness, element1 [concrete = constants.%C.as.MulWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.MulWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.5e8 = impl_witness_access constants.%MulAssignWith.impl_witness, element0 [concrete = constants.%C.as.MulAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.09f = impl_witness_access constants.%MulAssignWith.impl_witness, element0 [concrete = constants.%C.as.MulAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.MulAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/negate.carbon b/toolchain/check/testdata/operators/overloaded/negate.carbon
index ceab1086cdf9..6f0c3a4c9770 100644
--- a/toolchain/check/testdata/operators/overloaded/negate.carbon
+++ b/toolchain/check/testdata/operators/overloaded/negate.carbon
@@ -39,8 +39,8 @@ fn TestOp(a: C) -> C {
 // CHECK:STDOUT:   %Negate.impl_witness: <witness> = impl_witness file.%Negate.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.Negate.impl.Op.type: type = fn_type @C.as.Negate.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.Negate.impl.Op: %C.as.Negate.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %Negate.facet.b50: %Negate.type = facet_value %C, (%Negate.impl_witness) [concrete]
-// CHECK:STDOUT:   %.26d: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet.b50 [concrete]
+// CHECK:STDOUT:   %Negate.facet.762: %Negate.type = facet_value %C, (%Negate.impl_witness) [concrete]
+// CHECK:STDOUT:   %.a17: type = fn_type_with_self_type %Negate.Op.type, %Negate.facet.762 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -49,7 +49,7 @@ fn TestOp(a: C) -> C {
 // CHECK:STDOUT: fn @TestOp(%a.param: %C) -> %return.param: %C {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
-// CHECK:STDOUT:   %impl.elem1: %.26d = impl_witness_access constants.%Negate.impl_witness, element1 [concrete = constants.%C.as.Negate.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.a17 = impl_witness_access constants.%Negate.impl_witness, element1 [concrete = constants.%C.as.Negate.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.Negate.impl.Op.call: init %C = call %bound_method(%a.ref) to %.loc27
diff --git a/toolchain/check/testdata/operators/overloaded/ordered.carbon b/toolchain/check/testdata/operators/overloaded/ordered.carbon
index a7a1c673b751..614342ea617e 100644
--- a/toolchain/check/testdata/operators/overloaded/ordered.carbon
+++ b/toolchain/check/testdata/operators/overloaded/ordered.carbon
@@ -95,7 +95,7 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT:   %OrderedWith.type.270: type = generic_interface_type @OrderedWith [concrete]
 // CHECK:STDOUT:   %OrderedWith.generic: %OrderedWith.type.270 = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
-// CHECK:STDOUT:   %OrderedWith.type.914: type = facet_type <@OrderedWith, @OrderedWith(%C)> [concrete]
+// CHECK:STDOUT:   %OrderedWith.type.107: type = facet_type <@OrderedWith, @OrderedWith(%C)> [concrete]
 // CHECK:STDOUT:   %OrderedWith.Less.type.ef8: type = fn_type @OrderedWith.Less, @OrderedWith(%C) [concrete]
 // CHECK:STDOUT:   %OrderedWith.LessOrEquivalent.type.718: type = fn_type @OrderedWith.LessOrEquivalent, @OrderedWith(%C) [concrete]
 // CHECK:STDOUT:   %OrderedWith.Greater.type.394: type = fn_type @OrderedWith.Greater, @OrderedWith(%C) [concrete]
@@ -112,19 +112,19 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.Greater: %C.as.OrderedWith.impl.Greater.type = struct_value () [concrete]
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.GreaterOrEquivalent.type: type = fn_type @C.as.OrderedWith.impl.GreaterOrEquivalent [concrete]
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.GreaterOrEquivalent: %C.as.OrderedWith.impl.GreaterOrEquivalent.type = struct_value () [concrete]
-// CHECK:STDOUT:   %OrderedWith.facet: %OrderedWith.type.914 = facet_value %C, (%OrderedWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %OrderedWith.facet: %OrderedWith.type.107 = facet_value %C, (%OrderedWith.impl_witness) [concrete]
 // CHECK:STDOUT:   %TestLess.type: type = fn_type @TestLess [concrete]
 // CHECK:STDOUT:   %TestLess: %TestLess.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.dc0: type = fn_type_with_self_type %OrderedWith.Less.type.ef8, %OrderedWith.facet [concrete]
+// CHECK:STDOUT:   %.440: type = fn_type_with_self_type %OrderedWith.Less.type.ef8, %OrderedWith.facet [concrete]
 // CHECK:STDOUT:   %TestLessEqual.type: type = fn_type @TestLessEqual [concrete]
 // CHECK:STDOUT:   %TestLessEqual: %TestLessEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.d74: type = fn_type_with_self_type %OrderedWith.LessOrEquivalent.type.718, %OrderedWith.facet [concrete]
+// CHECK:STDOUT:   %.7af: type = fn_type_with_self_type %OrderedWith.LessOrEquivalent.type.718, %OrderedWith.facet [concrete]
 // CHECK:STDOUT:   %TestGreater.type: type = fn_type @TestGreater [concrete]
 // CHECK:STDOUT:   %TestGreater: %TestGreater.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.aa9: type = fn_type_with_self_type %OrderedWith.Greater.type.394, %OrderedWith.facet [concrete]
+// CHECK:STDOUT:   %.3d4: type = fn_type_with_self_type %OrderedWith.Greater.type.394, %OrderedWith.facet [concrete]
 // CHECK:STDOUT:   %TestGreaterEqual.type: type = fn_type @TestGreaterEqual [concrete]
 // CHECK:STDOUT:   %TestGreaterEqual: %TestGreaterEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.af7: type = fn_type_with_self_type %OrderedWith.GreaterOrEquivalent.type.f2b, %OrderedWith.facet [concrete]
+// CHECK:STDOUT:   %.3b1: type = fn_type_with_self_type %OrderedWith.GreaterOrEquivalent.type.f2b, %OrderedWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -156,7 +156,7 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %OrderedWith.ref: %OrderedWith.type.270 = name_ref OrderedWith, imports.%Core.OrderedWith [concrete = constants.%OrderedWith.generic]
 // CHECK:STDOUT:     %C.ref.loc6_28: type = name_ref C, file.%C.decl [concrete = constants.%C]
-// CHECK:STDOUT:     %OrderedWith.type: type = facet_type <@OrderedWith, @OrderedWith(constants.%C)> [concrete = constants.%OrderedWith.type.914]
+// CHECK:STDOUT:     %OrderedWith.type: type = facet_type <@OrderedWith, @OrderedWith(constants.%C)> [concrete = constants.%OrderedWith.type.107]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %OrderedWith.impl_witness_table = impl_witness_table (@C.as.OrderedWith.impl.%C.as.OrderedWith.impl.Less.decl, @C.as.OrderedWith.impl.%C.as.OrderedWith.impl.LessOrEquivalent.decl, @C.as.OrderedWith.impl.%C.as.OrderedWith.impl.Greater.decl, @C.as.OrderedWith.impl.%C.as.OrderedWith.impl.GreaterOrEquivalent.decl), @C.as.OrderedWith.impl [concrete]
 // CHECK:STDOUT:   %OrderedWith.impl_witness: <witness> = impl_witness %OrderedWith.impl_witness_table [concrete = constants.%OrderedWith.impl_witness]
@@ -375,7 +375,7 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.dc0 = impl_witness_access constants.%OrderedWith.impl_witness, element0 [concrete = constants.%C.as.OrderedWith.impl.Less]
+// CHECK:STDOUT:   %impl.elem0: %.440 = impl_witness_access constants.%OrderedWith.impl_witness, element0 [concrete = constants.%C.as.OrderedWith.impl.Less]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.Less.call: init bool = call %bound_method(%a.ref, %b.ref)
 // CHECK:STDOUT:   %.loc14_15.1: bool = value_of_initializer %C.as.OrderedWith.impl.Less.call
@@ -387,7 +387,7 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.d74 = impl_witness_access constants.%OrderedWith.impl_witness, element1 [concrete = constants.%C.as.OrderedWith.impl.LessOrEquivalent]
+// CHECK:STDOUT:   %impl.elem1: %.7af = impl_witness_access constants.%OrderedWith.impl_witness, element1 [concrete = constants.%C.as.OrderedWith.impl.LessOrEquivalent]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.LessOrEquivalent.call: init bool = call %bound_method(%a.ref, %b.ref)
 // CHECK:STDOUT:   %.loc18_16.1: bool = value_of_initializer %C.as.OrderedWith.impl.LessOrEquivalent.call
@@ -399,7 +399,7 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem2: %.aa9 = impl_witness_access constants.%OrderedWith.impl_witness, element2 [concrete = constants.%C.as.OrderedWith.impl.Greater]
+// CHECK:STDOUT:   %impl.elem2: %.3d4 = impl_witness_access constants.%OrderedWith.impl_witness, element2 [concrete = constants.%C.as.OrderedWith.impl.Greater]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem2
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.Greater.call: init bool = call %bound_method(%a.ref, %b.ref)
 // CHECK:STDOUT:   %.loc22_15.1: bool = value_of_initializer %C.as.OrderedWith.impl.Greater.call
@@ -411,7 +411,7 @@ fn TestGreaterEqual(a: D, b: D) -> bool {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem3: %.af7 = impl_witness_access constants.%OrderedWith.impl_witness, element3 [concrete = constants.%C.as.OrderedWith.impl.GreaterOrEquivalent]
+// CHECK:STDOUT:   %impl.elem3: %.3b1 = impl_witness_access constants.%OrderedWith.impl_witness, element3 [concrete = constants.%C.as.OrderedWith.impl.GreaterOrEquivalent]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem3
 // CHECK:STDOUT:   %C.as.OrderedWith.impl.GreaterOrEquivalent.call: init bool = call %bound_method(%a.ref, %b.ref)
 // CHECK:STDOUT:   %.loc26_16.1: bool = value_of_initializer %C.as.OrderedWith.impl.GreaterOrEquivalent.call
diff --git a/toolchain/check/testdata/operators/overloaded/right_shift.carbon b/toolchain/check/testdata/operators/overloaded/right_shift.carbon
index 2803e15c6a46..02fddef5490e 100644
--- a/toolchain/check/testdata/operators/overloaded/right_shift.carbon
+++ b/toolchain/check/testdata/operators/overloaded/right_shift.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %RightShiftWith.type.bd6: type = facet_type <@RightShiftWith, @RightShiftWith(%C)> [concrete]
+// CHECK:STDOUT:   %RightShiftWith.type.88d: type = facet_type <@RightShiftWith, @RightShiftWith(%C)> [concrete]
 // CHECK:STDOUT:   %RightShiftWith.Op.type.19b: type = fn_type @RightShiftWith.Op, @RightShiftWith(%C) [concrete]
 // CHECK:STDOUT:   %RightShiftWith.impl_witness: <witness> = impl_witness file.%RightShiftWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.RightShiftWith.impl.Op.type: type = fn_type @C.as.RightShiftWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.RightShiftWith.impl.Op: %C.as.RightShiftWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %RightShiftWith.facet.fb0: %RightShiftWith.type.bd6 = facet_value %C, (%RightShiftWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %RightShiftAssignWith.type.cd0: type = facet_type <@RightShiftAssignWith, @RightShiftAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %RightShiftWith.facet.88c: %RightShiftWith.type.88d = facet_value %C, (%RightShiftWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %RightShiftAssignWith.type.7a6: type = facet_type <@RightShiftAssignWith, @RightShiftAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %RightShiftAssignWith.Op.type.ae9: type = fn_type @RightShiftAssignWith.Op, @RightShiftAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %RightShiftAssignWith.impl_witness: <witness> = impl_witness file.%RightShiftAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.RightShiftAssignWith.impl.Op.type: type = fn_type @C.as.RightShiftAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.RightShiftAssignWith.impl.Op: %C.as.RightShiftAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %RightShiftAssignWith.facet: %RightShiftAssignWith.type.cd0 = facet_value %C, (%RightShiftAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %RightShiftWith.Op.type.19b, %RightShiftWith.facet.fb0 [concrete]
-// CHECK:STDOUT:   %.d41: type = fn_type_with_self_type %RightShiftAssignWith.Op.type.ae9, %RightShiftAssignWith.facet [concrete]
+// CHECK:STDOUT:   %RightShiftAssignWith.facet: %RightShiftAssignWith.type.7a6 = facet_value %C, (%RightShiftAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.194: type = fn_type_with_self_type %RightShiftWith.Op.type.19b, %RightShiftWith.facet.88c [concrete]
+// CHECK:STDOUT:   %.434: type = fn_type_with_self_type %RightShiftAssignWith.Op.type.ae9, %RightShiftAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.982 = impl_witness_access constants.%RightShiftWith.impl_witness, element1 [concrete = constants.%C.as.RightShiftWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.194 = impl_witness_access constants.%RightShiftWith.impl_witness, element1 [concrete = constants.%C.as.RightShiftWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.RightShiftWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.d41 = impl_witness_access constants.%RightShiftAssignWith.impl_witness, element0 [concrete = constants.%C.as.RightShiftAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.434 = impl_witness_access constants.%RightShiftAssignWith.impl_witness, element0 [concrete = constants.%C.as.RightShiftAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.RightShiftAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/operators/overloaded/sub.carbon b/toolchain/check/testdata/operators/overloaded/sub.carbon
index a7a05edc6bb2..dc0ce0f908a8 100644
--- a/toolchain/check/testdata/operators/overloaded/sub.carbon
+++ b/toolchain/check/testdata/operators/overloaded/sub.carbon
@@ -45,20 +45,20 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %SubWith.type.d29: type = facet_type <@SubWith, @SubWith(%C)> [concrete]
+// CHECK:STDOUT:   %SubWith.type.bb6: type = facet_type <@SubWith, @SubWith(%C)> [concrete]
 // CHECK:STDOUT:   %SubWith.Op.type.fc0: type = fn_type @SubWith.Op, @SubWith(%C) [concrete]
 // CHECK:STDOUT:   %SubWith.impl_witness: <witness> = impl_witness file.%SubWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.SubWith.impl.Op.type: type = fn_type @C.as.SubWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.SubWith.impl.Op: %C.as.SubWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %SubWith.facet.0b6: %SubWith.type.d29 = facet_value %C, (%SubWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %SubAssignWith.type.df6: type = facet_type <@SubAssignWith, @SubAssignWith(%C)> [concrete]
+// CHECK:STDOUT:   %SubWith.facet.342: %SubWith.type.bb6 = facet_value %C, (%SubWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %SubAssignWith.type.26a: type = facet_type <@SubAssignWith, @SubAssignWith(%C)> [concrete]
 // CHECK:STDOUT:   %SubAssignWith.Op.type.ffe: type = fn_type @SubAssignWith.Op, @SubAssignWith(%C) [concrete]
 // CHECK:STDOUT:   %SubAssignWith.impl_witness: <witness> = impl_witness file.%SubAssignWith.impl_witness_table [concrete]
 // CHECK:STDOUT:   %C.as.SubAssignWith.impl.Op.type: type = fn_type @C.as.SubAssignWith.impl.Op [concrete]
 // CHECK:STDOUT:   %C.as.SubAssignWith.impl.Op: %C.as.SubAssignWith.impl.Op.type = struct_value () [concrete]
-// CHECK:STDOUT:   %SubAssignWith.facet: %SubAssignWith.type.df6 = facet_value %C, (%SubAssignWith.impl_witness) [concrete]
-// CHECK:STDOUT:   %.71c: type = fn_type_with_self_type %SubWith.Op.type.fc0, %SubWith.facet.0b6 [concrete]
-// CHECK:STDOUT:   %.647: type = fn_type_with_self_type %SubAssignWith.Op.type.ffe, %SubAssignWith.facet [concrete]
+// CHECK:STDOUT:   %SubAssignWith.facet: %SubAssignWith.type.26a = facet_value %C, (%SubAssignWith.impl_witness) [concrete]
+// CHECK:STDOUT:   %.028: type = fn_type_with_self_type %SubWith.Op.type.fc0, %SubWith.facet.342 [concrete]
+// CHECK:STDOUT:   %.bbd: type = fn_type_with_self_type %SubAssignWith.Op.type.ffe, %SubAssignWith.facet [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,7 +68,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem1: %.71c = impl_witness_access constants.%SubWith.impl_witness, element1 [concrete = constants.%C.as.SubWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem1: %.028 = impl_witness_access constants.%SubWith.impl_witness, element1 [concrete = constants.%C.as.SubWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %C.as.SubWith.impl.Op.call: init %C = call %bound_method(%a.ref, %b.ref) to %.loc30
@@ -80,7 +80,7 @@ fn TestAssign(a: C*, b: C) {
 // CHECK:STDOUT:   %a.ref: %ptr.019 = name_ref a, %a
 // CHECK:STDOUT:   %.loc38: ref %C = deref %a.ref
 // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
-// CHECK:STDOUT:   %impl.elem0: %.647 = impl_witness_access constants.%SubAssignWith.impl_witness, element0 [concrete = constants.%C.as.SubAssignWith.impl.Op]
+// CHECK:STDOUT:   %impl.elem0: %.bbd = impl_witness_access constants.%SubAssignWith.impl_witness, element0 [concrete = constants.%C.as.SubAssignWith.impl.Op]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc38, %impl.elem0
 // CHECK:STDOUT:   %addr: %ptr.019 = addr_of %.loc38
 // CHECK:STDOUT:   %C.as.SubAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr, %b.ref)
diff --git a/toolchain/check/testdata/package_expr/fail_not_found.carbon b/toolchain/check/testdata/package_expr/fail_not_found.carbon
index a5f41a02da23..9a234752b5c3 100644
--- a/toolchain/check/testdata/package_expr/fail_not_found.carbon
+++ b/toolchain/check/testdata/package_expr/fail_not_found.carbon
@@ -32,10 +32,10 @@ fn Main() {
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -74,8 +74,8 @@ fn Main() {
 // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %i32 = bind_name y, %y.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %y.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %y.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %y.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %y.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/package_expr/syntax.carbon b/toolchain/check/testdata/package_expr/syntax.carbon
index 6cc00fa6ec5a..13aeb5f3953e 100644
--- a/toolchain/check/testdata/package_expr/syntax.carbon
+++ b/toolchain/check/testdata/package_expr/syntax.carbon
@@ -56,18 +56,18 @@ fn Main() {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -81,8 +81,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -117,7 +117,7 @@ fn Main() {
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc4_1.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc4_1.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -143,31 +143,31 @@ fn Main() {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %Main.type: type = fn_type @Main [concrete]
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -180,8 +180,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -213,10 +213,10 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x.var: ref %i32 = var %x.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc7_3.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc7_3.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_3.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc7_3.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc7_3.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc7_3: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %x.var, %.loc7_3
@@ -239,13 +239,13 @@ fn Main() {
 // CHECK:STDOUT:     %i32.loc9: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %i32 = bind_name y, %y.var
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %y.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc9: <bound method> = bound_method %y.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc9: <bound method> = bound_method %y.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9: %ptr.235 = addr_of %y.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc9: init %empty_tuple.type = call %bound_method.loc9(%addr.loc9)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %x.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %x.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7_3.3: <bound method> = bound_method %x.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc7: %ptr.235 = addr_of %x.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc7: init %empty_tuple.type = call %bound_method.loc7_3.3(%addr.loc7)
@@ -255,10 +255,10 @@ fn Main() {
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc4_1.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc4_1.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc4_1.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc4_1.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc4_1.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc4: init %i32 = converted %int_0, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign file.%x.var, %.loc4
diff --git a/toolchain/check/testdata/packages/implicit_imports_prelude.carbon b/toolchain/check/testdata/packages/implicit_imports_prelude.carbon
index 64657ac96dea..e8a863a9af7b 100644
--- a/toolchain/check/testdata/packages/implicit_imports_prelude.carbon
+++ b/toolchain/check/testdata/packages/implicit_imports_prelude.carbon
@@ -37,18 +37,18 @@ var b: i32 = a;
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -62,8 +62,8 @@ var b: i32 = a;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -87,7 +87,7 @@ var b: i32 = a;
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc4_1.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc4_1.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/packages/raw_core.carbon b/toolchain/check/testdata/packages/raw_core.carbon
index c7328bd96971..3a5167e96983 100644
--- a/toolchain/check/testdata/packages/raw_core.carbon
+++ b/toolchain/check/testdata/packages/raw_core.carbon
@@ -202,7 +202,7 @@ var c: r#Core = {.n = 0 as Core.Int(32)};
 // CHECK:STDOUT:   %Core.elem: type = unbound_element_type %Core, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.987: <witness> = impl_witness @Core.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.918: <witness> = impl_witness @Core.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.4bf: type = ptr_type %Core [concrete]
 // CHECK:STDOUT:   %pattern_type.c58: type = pattern_type %ptr.4bf [concrete]
 // CHECK:STDOUT:   %Core.as.Destroy.impl.Op.type: type = fn_type @Core.as.Destroy.impl.Op [concrete]
@@ -213,18 +213,18 @@ var c: r#Core = {.n = 0 as Core.Int(32)};
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [concrete]
 // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %.96d: ref %i32 = class_element_access file.%c.var, element0 [concrete]
@@ -242,8 +242,8 @@ var c: r#Core = {.n = 0 as Core.Int(32)};
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/parts/as, As, loaded [concrete = constants.%As.generic]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -288,7 +288,7 @@ var c: r#Core = {.n = 0 as Core.Int(32)};
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%Core [concrete = constants.%Core]
 // CHECK:STDOUT:   impl_decl @Core.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@Core.as.Destroy.impl.%Core.as.Destroy.impl.Op.decl), @Core.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.987]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.918]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n [concrete = constants.%complete_type.54b]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -306,7 +306,7 @@ var c: r#Core = {.n = 0 as Core.Int(32)};
 // CHECK:STDOUT:   %Int.ref: %Int.type = name_ref Int, imports.%Core.Int [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
+// CHECK:STDOUT:   %impl.elem0: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
 // CHECK:STDOUT:   %bound_method.loc6_25.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc6_25.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/patterns/underscore.carbon b/toolchain/check/testdata/patterns/underscore.carbon
index aee0dcd2b497..9ae7ee9efa53 100644
--- a/toolchain/check/testdata/patterns/underscore.carbon
+++ b/toolchain/check/testdata/patterns/underscore.carbon
@@ -119,10 +119,10 @@ fn F() -> {} {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.069: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.d5a: %T.as.Destroy.impl.Op.type.069 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.456: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.24b: %T.as.Destroy.impl.Op.type.456 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(%empty_struct_type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -190,8 +190,8 @@ fn F() -> {} {
 // CHECK:STDOUT:     %.loc9_11.3: type = converted %.loc9_11.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %_.loc9: ref %empty_struct_type = bind_name _, %_.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %_.var, constants.%T.as.Destroy.impl.Op.d5a
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.d5a, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %_.var, constants.%T.as.Destroy.impl.Op.24b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.24b, @T.as.Destroy.impl.Op(constants.%empty_struct_type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %_.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c28 = addr_of %_.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/pointer/address_of_deref.carbon b/toolchain/check/testdata/pointer/address_of_deref.carbon
index 9f634b27e5d8..f440b4f08f4e 100644
--- a/toolchain/check/testdata/pointer/address_of_deref.carbon
+++ b/toolchain/check/testdata/pointer/address_of_deref.carbon
@@ -31,25 +31,25 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -62,8 +62,8 @@ fn F() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -92,7 +92,7 @@ fn F() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %n.var: ref %i32 = var %n.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_3.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -110,8 +110,8 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %addr.loc17_11: %ptr.235 = addr_of %.loc17_12
 // CHECK:STDOUT:   %.loc17_10.1: ref %i32 = deref %addr.loc17_11
 // CHECK:STDOUT:   %.loc17_10.2: %i32 = bind_value %.loc17_10.1
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.3: <bound method> = bound_method %n.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc16: %ptr.235 = addr_of %n.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc16_3.3(%addr.loc16)
diff --git a/toolchain/check/testdata/pointer/address_of_lvalue.carbon b/toolchain/check/testdata/pointer/address_of_lvalue.carbon
index 8ce7a1953da3..0baf97dc3f0a 100644
--- a/toolchain/check/testdata/pointer/address_of_lvalue.carbon
+++ b/toolchain/check/testdata/pointer/address_of_lvalue.carbon
@@ -42,23 +42,23 @@ fn F() {
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.501 = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %pattern_type.8dd: type = pattern_type %ptr.3ee [concrete]
@@ -71,20 +71,20 @@ fn F() {
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.d07 = tuple_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.829: <specific function> = specific_function %T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a4a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.d07) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7c6: %T.as.Destroy.impl.Op.type.a4a = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.bbb: <specific function> = specific_function %T.as.Destroy.impl.Op.7c6, @T.as.Destroy.impl.Op(%tuple.type.d07) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.757: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.3ee) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e22: %T.as.Destroy.impl.Op.type.757 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d25: <specific function> = specific_function %T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.623: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.d07) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.55d: %T.as.Destroy.impl.Op.type.623 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.698: <specific function> = specific_function %T.as.Destroy.impl.Op.55d, @T.as.Destroy.impl.Op(%tuple.type.d07) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.515: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.3ee) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.5b4: %T.as.Destroy.impl.Op.type.515 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.40c: type = ptr_type %ptr.3ee [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.ce1: <specific function> = specific_function %T.as.Destroy.impl.Op.e22, @T.as.Destroy.impl.Op(%ptr.3ee) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.da3: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.501) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.9db: %T.as.Destroy.impl.Op.type.da3 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1e0: <specific function> = specific_function %T.as.Destroy.impl.Op.9db, @T.as.Destroy.impl.Op(%struct_type.a.b.501) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.8af: <specific function> = specific_function %T.as.Destroy.impl.Op.5b4, @T.as.Destroy.impl.Op(%ptr.3ee) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.eb5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.501) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.722: %T.as.Destroy.impl.Op.type.eb5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.e4c: <specific function> = specific_function %T.as.Destroy.impl.Op.722, @T.as.Destroy.impl.Op(%struct_type.a.b.501) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -97,8 +97,8 @@ fn F() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -121,18 +121,18 @@ fn F() {
 // CHECK:STDOUT:   %int_1.loc16: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc16: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc16_46.1: %struct_type.a.b.cfd = struct_literal (%int_1.loc16, %int_2.loc16)
-// CHECK:STDOUT:   %impl.elem0.loc16_46.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_46.1: <bound method> = bound_method %int_1.loc16, %impl.elem0.loc16_46.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc16_46.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_46.1: <bound method> = bound_method %int_1.loc16, %impl.elem0.loc16_46.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc16_46.1: <specific function> = specific_function %impl.elem0.loc16_46.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_46.2: <bound method> = bound_method %int_1.loc16, %specific_fn.loc16_46.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc16_46.2: <bound method> = bound_method %int_1.loc16, %specific_fn.loc16_46.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_46.1: init %i32 = call %bound_method.loc16_46.2(%int_1.loc16) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16_46.2: init %i32 = converted %int_1.loc16, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_46.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc16_46.3: ref %i32 = struct_access %s.var, element0
 // CHECK:STDOUT:   %.loc16_46.4: init %i32 = initialize_from %.loc16_46.2 to %.loc16_46.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc16_46.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_46.3: <bound method> = bound_method %int_2.loc16, %impl.elem0.loc16_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc16_46.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_46.3: <bound method> = bound_method %int_2.loc16, %impl.elem0.loc16_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc16_46.2: <specific function> = specific_function %impl.elem0.loc16_46.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_46.4: <bound method> = bound_method %int_2.loc16, %specific_fn.loc16_46.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc16_46.4: <bound method> = bound_method %int_2.loc16, %specific_fn.loc16_46.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_46.2: init %i32 = call %bound_method.loc16_46.4(%int_2.loc16) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_46.5: init %i32 = converted %int_2.loc16, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16_46.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc16_46.6: ref %i32 = struct_access %s.var, element1
@@ -203,18 +203,18 @@ fn F() {
 // CHECK:STDOUT:   %int_1.loc22: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc22: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc22_28.1: %tuple.type.f94 = tuple_literal (%int_1.loc22, %int_2.loc22)
-// CHECK:STDOUT:   %impl.elem0.loc22_28.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_28.1: <bound method> = bound_method %int_1.loc22, %impl.elem0.loc22_28.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc22_28.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_28.1: <bound method> = bound_method %int_1.loc22, %impl.elem0.loc22_28.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc22_28.1: <specific function> = specific_function %impl.elem0.loc22_28.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_28.2: <bound method> = bound_method %int_1.loc22, %specific_fn.loc22_28.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc22_28.2: <bound method> = bound_method %int_1.loc22, %specific_fn.loc22_28.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_28.1: init %i32 = call %bound_method.loc22_28.2(%int_1.loc22) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc22_28.2: init %i32 = converted %int_1.loc22, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_28.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %tuple.elem0.loc22: ref %i32 = tuple_access %t.var, element0
 // CHECK:STDOUT:   %.loc22_28.3: init %i32 = initialize_from %.loc22_28.2 to %tuple.elem0.loc22 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc22_28.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_28.3: <bound method> = bound_method %int_2.loc22, %impl.elem0.loc22_28.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc22_28.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_28.3: <bound method> = bound_method %int_2.loc22, %impl.elem0.loc22_28.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc22_28.2: <specific function> = specific_function %impl.elem0.loc22_28.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_28.4: <bound method> = bound_method %int_2.loc22, %specific_fn.loc22_28.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc22_28.4: <bound method> = bound_method %int_2.loc22, %specific_fn.loc22_28.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_28.2: init %i32 = call %bound_method.loc22_28.4(%int_2.loc22) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc22_28.4: init %i32 = converted %int_2.loc22, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22_28.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %tuple.elem1.loc22: ref %i32 = tuple_access %t.var, element1
@@ -263,38 +263,38 @@ fn F() {
 // CHECK:STDOUT:     %ptr.loc24: type = ptr_type %i32.loc24 [concrete = constants.%ptr.235]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %t1: ref %ptr.235 = bind_name t1, %t1.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %t1.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc24: <bound method> = bound_method %t1.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc24: <bound method> = bound_method %t1.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc24_3: %ptr.5d5 = addr_of %t1.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc24: init %empty_tuple.type = call %bound_method.loc24(%addr.loc24_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %t0.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc23: <bound method> = bound_method %t0.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc23: <bound method> = bound_method %t0.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc23_3: %ptr.5d5 = addr_of %t0.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc23: init %empty_tuple.type = call %bound_method.loc23(%addr.loc23_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc22: <bound method> = bound_method %t.var, constants.%T.as.Destroy.impl.Op.7c6
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.7c6, @T.as.Destroy.impl.Op(constants.%tuple.type.d07) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.bbb]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc22: <bound method> = bound_method %t.var, constants.%T.as.Destroy.impl.Op.55d
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.55d, @T.as.Destroy.impl.Op(constants.%tuple.type.d07) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.698]
 // CHECK:STDOUT:   %bound_method.loc22_3: <bound method> = bound_method %t.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc22: %ptr.261 = addr_of %t.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc22: init %empty_tuple.type = call %bound_method.loc22_3(%addr.loc22)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %r.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %r.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc20: <bound method> = bound_method %r.var, %T.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc20_3: %ptr.5d5 = addr_of %r.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc20: init %empty_tuple.type = call %bound_method.loc20(%addr.loc20_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %q.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.5: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.829]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %q.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.5: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d25]
 // CHECK:STDOUT:   %bound_method.loc19: <bound method> = bound_method %q.var, %T.as.Destroy.impl.Op.specific_fn.5
 // CHECK:STDOUT:   %addr.loc19_3: %ptr.5d5 = addr_of %q.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc19: init %empty_tuple.type = call %bound_method.loc19(%addr.loc19_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.e22
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.6: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.e22, @T.as.Destroy.impl.Op(constants.%ptr.3ee) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.ce1]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.5b4
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.6: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.5b4, @T.as.Destroy.impl.Op(constants.%ptr.3ee) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.8af]
 // CHECK:STDOUT:   %bound_method.loc18: <bound method> = bound_method %p.var, %T.as.Destroy.impl.Op.specific_fn.6
 // CHECK:STDOUT:   %addr.loc18_3: %ptr.40c = addr_of %p.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc18: init %empty_tuple.type = call %bound_method.loc18(%addr.loc18_3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.9db
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.7: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.9db, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.501) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.1e0]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %s.var, constants.%T.as.Destroy.impl.Op.722
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.7: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.722, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.501) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.e4c]
 // CHECK:STDOUT:   %bound_method.loc16_3: <bound method> = bound_method %s.var, %T.as.Destroy.impl.Op.specific_fn.7
 // CHECK:STDOUT:   %addr.loc16: %ptr.3ee = addr_of %s.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc16: init %empty_tuple.type = call %bound_method.loc16_3(%addr.loc16)
diff --git a/toolchain/check/testdata/pointer/basic.carbon b/toolchain/check/testdata/pointer/basic.carbon
index 461791f8a09c..f8fdcae14f88 100644
--- a/toolchain/check/testdata/pointer/basic.carbon
+++ b/toolchain/check/testdata/pointer/basic.carbon
@@ -33,30 +33,30 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
 // CHECK:STDOUT:   %pattern_type.fe8: type = pattern_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.ba2: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.649: %T.as.Destroy.impl.Op.type.ba2 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f2e: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%ptr.235) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.fad: %T.as.Destroy.impl.Op.type.f2e = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.5d5: type = ptr_type %ptr.235 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(%ptr.235) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -69,8 +69,8 @@ fn F() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -99,7 +99,7 @@ fn F() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %n.var: ref %i32 = var %n.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_3.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
@@ -129,13 +129,13 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %.loc19_11: %ptr.235 = bind_value %p.ref
 // CHECK:STDOUT:   %.loc19_10.1: ref %i32 = deref %.loc19_11
 // CHECK:STDOUT:   %.loc19_10.2: %i32 = bind_value %.loc19_10.1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.649
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.649, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %p.var, constants.%T.as.Destroy.impl.Op.fad
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.fad, @T.as.Destroy.impl.Op(constants.%ptr.235) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc17: <bound method> = bound_method %p.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc17_3: %ptr.5d5 = addr_of %p.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc17(%addr.loc17_3)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %n.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_3.3: <bound method> = bound_method %n.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr.loc16: %ptr.235 = addr_of %n.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc16_3.3(%addr.loc16)
diff --git a/toolchain/check/testdata/pointer/import.carbon b/toolchain/check/testdata/pointer/import.carbon
index 5aa019d25794..d2dc2eafa7b7 100644
--- a/toolchain/check/testdata/pointer/import.carbon
+++ b/toolchain/check/testdata/pointer/import.carbon
@@ -36,18 +36,18 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
@@ -64,8 +64,8 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -101,7 +101,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT: fn @__global_init() {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc4_1.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc4_1.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/primitives/import_symbolic.carbon b/toolchain/check/testdata/primitives/import_symbolic.carbon
index f8b536185547..3821aa85cb12 100644
--- a/toolchain/check/testdata/primitives/import_symbolic.carbon
+++ b/toolchain/check/testdata/primitives/import_symbolic.carbon
@@ -455,13 +455,13 @@ fn F() -> u32 {
 // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness imports.%I.impl_witness_table [concrete]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
-// CHECK:STDOUT:   %assoc0.633: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.830 [concrete]
+// CHECK:STDOUT:   %assoc0.633c: %I.assoc_type = assoc_entity element0, imports.%Main.import_ref.830 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
 // CHECK:STDOUT:   %Main.I: type = import_ref Main//uint, I, loaded [concrete = constants.%I.type]
 // CHECK:STDOUT:   %Main.C: type = import_ref Main//uint, C, loaded [concrete = constants.%C]
-// CHECK:STDOUT:   %Main.import_ref.d18: %I.assoc_type = import_ref Main//uint, loc5_10, loaded [concrete = constants.%assoc0.633]
+// CHECK:STDOUT:   %Main.import_ref.d18: %I.assoc_type = import_ref Main//uint, loc5_10, loaded [concrete = constants.%assoc0.633c]
 // CHECK:STDOUT:   %Main.import_ref.647: %u32 = import_ref Main//uint, loc10_28, loaded [concrete = constants.%int_8]
 // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (%Main.import_ref.647), @C.as.I.impl [concrete]
 // CHECK:STDOUT:   %Main.import_ref.830: %u32 = import_ref Main//uint, loc5_10, loaded [concrete = %val]
@@ -474,7 +474,7 @@ fn F() -> u32 {
 // CHECK:STDOUT:   %I.ref: type = name_ref I, imports.%Main.I [concrete = constants.%I.type]
 // CHECK:STDOUT:   %I.facet: %I.type = facet_value constants.%C, (constants.%I.impl_witness) [concrete = constants.%I.facet]
 // CHECK:STDOUT:   %.loc7_13: %I.type = converted %C.ref, %I.facet [concrete = constants.%I.facet]
-// CHECK:STDOUT:   %val.ref: %I.assoc_type = name_ref val, imports.%Main.import_ref.d18 [concrete = constants.%assoc0.633]
+// CHECK:STDOUT:   %val.ref: %I.assoc_type = name_ref val, imports.%Main.import_ref.d18 [concrete = constants.%assoc0.633c]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %.loc7_13 [concrete = constants.%C]
 // CHECK:STDOUT:   %.loc7_18: type = converted %.loc7_13, %as_type [concrete = constants.%C]
 // CHECK:STDOUT:   %impl.elem0: %u32 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%int_8]
diff --git a/toolchain/check/testdata/return/code_after_return_value.carbon b/toolchain/check/testdata/return/code_after_return_value.carbon
index 0a6f441a55ea..596560353edb 100644
--- a/toolchain/check/testdata/return/code_after_return_value.carbon
+++ b/toolchain/check/testdata/return/code_after_return_value.carbon
@@ -40,19 +40,19 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -67,8 +67,8 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -100,10 +100,10 @@ fn F(b: bool) -> i32 {
 // CHECK:STDOUT: fn @F(%b.param: bool) -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_11.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_11.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_11.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc16_11.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc16_11.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc16_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc16_11.2: %i32 = converted %int_0, %.loc16_11.1 [concrete = constants.%int_0.6a9]
diff --git a/toolchain/check/testdata/return/fail_return_with_returned_var.carbon b/toolchain/check/testdata/return/fail_return_with_returned_var.carbon
index b09fcf89c1c9..8a2c5551df2f 100644
--- a/toolchain/check/testdata/return/fail_return_with_returned_var.carbon
+++ b/toolchain/check/testdata/return/fail_return_with_returned_var.carbon
@@ -51,30 +51,30 @@ fn G() -> C {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %C: type = class_type @C [concrete]
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -86,11 +86,11 @@ fn G() -> C {
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT: }
@@ -105,8 +105,8 @@ fn G() -> C {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -164,7 +164,7 @@ fn G() -> C {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -182,10 +182,10 @@ fn G() -> C {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc16_12.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc16_12.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc16_12.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc16_12.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc16_12.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc16_12: init %i32 = converted %int_0, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %v.var, %.loc16_12
@@ -195,8 +195,8 @@ fn G() -> C {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %i32 = bind_name v, %v.var
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_12.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc16_12.3(%addr)
@@ -214,18 +214,18 @@ fn G() -> C {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc29_38.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
-// CHECK:STDOUT:   %impl.elem0.loc29_38.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc29_38.1: <bound method> = bound_method %int_1, %impl.elem0.loc29_38.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc29_38.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc29_38.1: <bound method> = bound_method %int_1, %impl.elem0.loc29_38.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc29_38.1: <specific function> = specific_function %impl.elem0.loc29_38.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc29_38.2: <bound method> = bound_method %int_1, %specific_fn.loc29_38.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc29_38.2: <bound method> = bound_method %int_1, %specific_fn.loc29_38.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc29_38.1: init %i32 = call %bound_method.loc29_38.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc29_38.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc29_38.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc29_38.3: ref %i32 = class_element_access %return, element0
 // CHECK:STDOUT:   %.loc29_38.4: init %i32 = initialize_from %.loc29_38.2 to %.loc29_38.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc29_38.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc29_38.3: <bound method> = bound_method %int_2, %impl.elem0.loc29_38.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc29_38.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc29_38.3: <bound method> = bound_method %int_2, %impl.elem0.loc29_38.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc29_38.2: <specific function> = specific_function %impl.elem0.loc29_38.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc29_38.4: <bound method> = bound_method %int_2, %specific_fn.loc29_38.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc29_38.4: <bound method> = bound_method %int_2, %specific_fn.loc29_38.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc29_38.2: init %i32 = call %bound_method.loc29_38.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc29_38.5: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc29_38.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc29_38.6: ref %i32 = class_element_access %return, element1
diff --git a/toolchain/check/testdata/return/fail_returned_var_no_return_type.carbon b/toolchain/check/testdata/return/fail_returned_var_no_return_type.carbon
index d189c4d5f97c..56d1e6870294 100644
--- a/toolchain/check/testdata/return/fail_returned_var_no_return_type.carbon
+++ b/toolchain/check/testdata/return/fail_returned_var_no_return_type.carbon
@@ -57,10 +57,10 @@ fn ForgotReturnType() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -97,8 +97,8 @@ fn ForgotReturnType() {
 // CHECK:STDOUT:     %.loc12_20.3: type = converted %.loc12_20.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %empty_tuple.type = bind_name v, %v.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %v.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -114,10 +114,10 @@ fn ForgotReturnType() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -154,8 +154,8 @@ fn ForgotReturnType() {
 // CHECK:STDOUT:     %.loc12_20.3: type = converted %.loc12_20.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %empty_tuple.type = bind_name v, %v.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %v.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/return/fail_returned_var_shadow.carbon b/toolchain/check/testdata/return/fail_returned_var_shadow.carbon
index 32471df86dc4..fe31792be0d3 100644
--- a/toolchain/check/testdata/return/fail_returned_var_shadow.carbon
+++ b/toolchain/check/testdata/return/fail_returned_var_shadow.carbon
@@ -59,29 +59,29 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %DifferentScopes.type: type = fn_type @DifferentScopes [concrete]
 // CHECK:STDOUT:   %DifferentScopes: %DifferentScopes.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -96,8 +96,8 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -140,10 +140,10 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_0.loc17: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc17: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_14.1: <bound method> = bound_method %int_0.loc17, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc17: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_14.1: <bound method> = bound_method %int_0.loc17, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc17: <specific function> = specific_function %impl.elem0.loc17, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_14.2: <bound method> = bound_method %int_0.loc17, %specific_fn.loc17 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc17_14.2: <bound method> = bound_method %int_0.loc17, %specific_fn.loc17 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17: init %i32 = call %bound_method.loc17_14.2(%int_0.loc17) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc17_14: init %i32 = converted %int_0.loc17, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %v.var, %.loc17_14
@@ -158,10 +158,10 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %w.var: ref %i32 = var %w.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc25: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc25_14.1: <bound method> = bound_method %int_1, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc25: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc25_14.1: <bound method> = bound_method %int_1, %impl.elem0.loc25 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc25: <specific function> = specific_function %impl.elem0.loc25, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc25_14.2: <bound method> = bound_method %int_1, %specific_fn.loc25 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc25_14.2: <bound method> = bound_method %int_1, %specific_fn.loc25 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25: init %i32 = call %bound_method.loc25_14.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc25_14: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc25 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %w.var, %.loc25_14
@@ -174,20 +174,20 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.else:
 // CHECK:STDOUT:   %int_0.loc27: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc27_11.1: <bound method> = bound_method %int_0.loc27, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc27_11.1: <bound method> = bound_method %int_0.loc27, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc27: <specific function> = specific_function %impl.elem0.loc27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc27_11.2: <bound method> = bound_method %int_0.loc27, %specific_fn.loc27 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc27_11.2: <bound method> = bound_method %int_0.loc27, %specific_fn.loc27 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27: init %i32 = call %bound_method.loc27_11.2(%int_0.loc27) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc27_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc27_11.2: %i32 = converted %int_0.loc27, %.loc27_11.1 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc25: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc25_14.3: <bound method> = bound_method %w.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc25: %ptr.235 = addr_of %w.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc25: init %empty_tuple.type = call %bound_method.loc25_14.3(%addr.loc25)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc17_14.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc17: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc17: init %empty_tuple.type = call %bound_method.loc17_14.3(%addr.loc17)
@@ -206,10 +206,10 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_0.loc32: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc32: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc32_14.1: <bound method> = bound_method %int_0.loc32, %impl.elem0.loc32 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc32: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc32_14.1: <bound method> = bound_method %int_0.loc32, %impl.elem0.loc32 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc32: <specific function> = specific_function %impl.elem0.loc32, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc32_14.2: <bound method> = bound_method %int_0.loc32, %specific_fn.loc32 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc32_14.2: <bound method> = bound_method %int_0.loc32, %specific_fn.loc32 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32: init %i32 = call %bound_method.loc32_14.2(%int_0.loc32) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc32_14: init %i32 = converted %int_0.loc32, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc32 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %v.var, %.loc32_14
@@ -228,10 +228,10 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %w.var: ref %i32 = var %w.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc41: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc41_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc41 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc41: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc41_16.1: <bound method> = bound_method %int_1, %impl.elem0.loc41 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc41: <specific function> = specific_function %impl.elem0.loc41, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc41_16.2: <bound method> = bound_method %int_1, %specific_fn.loc41 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc41_16.2: <bound method> = bound_method %int_1, %specific_fn.loc41 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc41: init %i32 = call %bound_method.loc41_16.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc41_16: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc41 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %w.var, %.loc41_16
@@ -247,20 +247,20 @@ fn DifferentScopes() -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.else.loc31:
 // CHECK:STDOUT:   %int_0.loc44: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc44: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc44_11.1: <bound method> = bound_method %int_0.loc44, %impl.elem0.loc44 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc44: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc44_11.1: <bound method> = bound_method %int_0.loc44, %impl.elem0.loc44 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc44: <specific function> = specific_function %impl.elem0.loc44, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc44_11.2: <bound method> = bound_method %int_0.loc44, %specific_fn.loc44 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc44_11.2: <bound method> = bound_method %int_0.loc44, %specific_fn.loc44 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc44: init %i32 = call %bound_method.loc44_11.2(%int_0.loc44) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc44_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc44 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc44_11.2: %i32 = converted %int_0.loc44, %.loc44_11.1 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc41: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc41: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc41_16.3: <bound method> = bound_method %w.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc41: %ptr.235 = addr_of %w.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc41: init %empty_tuple.type = call %bound_method.loc41_16.3(%addr.loc41)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc32: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc32: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc32_14.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc32: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc32: init %empty_tuple.type = call %bound_method.loc32_14.3(%addr.loc32)
diff --git a/toolchain/check/testdata/return/fail_returned_var_type.carbon b/toolchain/check/testdata/return/fail_returned_var_type.carbon
index 498669a2d5f5..891f6e2660a7 100644
--- a/toolchain/check/testdata/return/fail_returned_var_type.carbon
+++ b/toolchain/check/testdata/return/fail_returned_var_type.carbon
@@ -43,25 +43,25 @@ fn Mismatch() -> i32 {
 // CHECK:STDOUT:   %float.1f7: Core.FloatLiteral = float_literal_value 0e-1 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.0a8: %f64.d77 = float_value 0 [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.cd5: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.b8c: %Float.as.Destroy.impl.Op.type.cd5 = struct_value () [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.type.ce0: type = fn_type @Float.as.Destroy.impl.Op, @Float.as.Destroy.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.af3: %Float.as.Destroy.impl.Op.type.ce0 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.bcc: type = ptr_type %f64.d77 [concrete]
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Float.as.Destroy.impl.Op.b8c, @Float.as.Destroy.impl.Op(%int_64) [concrete]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Float.as.Destroy.impl.Op.af3, @Float.as.Destroy.impl.Op(%int_64) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -76,8 +76,8 @@ fn Mismatch() -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Float: %Float.type = import_ref Core//prelude/parts/float, Float, loaded [concrete = constants.%Float.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -106,7 +106,7 @@ fn Mismatch() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %f64.d77 = var %v.var_patt
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 0e-1 [concrete = constants.%float.1f7]
-// CHECK:STDOUT:   %impl.elem0: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc23_12.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc23_12.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
@@ -119,8 +119,8 @@ fn Mismatch() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %f64.d77 = bind_name v, %v.var
 // CHECK:STDOUT:   %.loc23_16: %f64.d77 = bind_value %v
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Float.as.Destroy.impl.Op.b8c
-// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Float.as.Destroy.impl.Op.b8c, @Float.as.Destroy.impl.Op(constants.%int_64) [concrete = constants.%Float.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%Float.as.Destroy.impl.Op.af3
+// CHECK:STDOUT:   %Float.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Float.as.Destroy.impl.Op.af3, @Float.as.Destroy.impl.Op(constants.%int_64) [concrete = constants.%Float.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc23_12.3: <bound method> = bound_method %v.var, %Float.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.bcc = addr_of %v.var
 // CHECK:STDOUT:   %Float.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc23_12.3(%addr)
diff --git a/toolchain/check/testdata/return/import_convert_function.carbon b/toolchain/check/testdata/return/import_convert_function.carbon
index 77f706888cb2..a620c54e9570 100644
--- a/toolchain/check/testdata/return/import_convert_function.carbon
+++ b/toolchain/check/testdata/return/import_convert_function.carbon
@@ -62,7 +62,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %C.506: type = class_type @C, @C(%N.51e) [symbolic]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.1ba: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.2a5: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N.51e) [symbolic]
 // CHECK:STDOUT:   %ptr.128: type = ptr_type %C.506 [symbolic]
 // CHECK:STDOUT:   %pattern_type.d64: type = pattern_type %ptr.128 [symbolic]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N.51e) [symbolic]
@@ -71,7 +71,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
 // CHECK:STDOUT:   %D: type = class_type @D [concrete]
 // CHECK:STDOUT:   %D.elem: type = unbound_element_type %D, %i32 [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.73d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.05d: <witness> = impl_witness @D.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.19c: type = ptr_type %D [concrete]
 // CHECK:STDOUT:   %pattern_type.a94: type = pattern_type %ptr.19c [concrete]
 // CHECK:STDOUT:   %D.as.Destroy.impl.Op.type: type = fn_type @D.as.Destroy.impl.Op [concrete]
@@ -85,90 +85,90 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %struct_type.n.m.819: type = struct_type {.n: Core.IntLiteral, .m: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %D.val: %D = struct_value (%int_0.6a9, %int_0.6a9) [concrete]
 // CHECK:STDOUT:   %C.c8d: type = class_type @C, @C(%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.94e: type = facet_type <@ImplicitAs, @ImplicitAs(%D)> [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.00c: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc8 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.2a2: type = facet_type <@ImplicitAs, @ImplicitAs(%D)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.998: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc8 [concrete]
 // CHECK:STDOUT:   %pattern_type.f33: type = pattern_type %C.c8d [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.cd0: type = fn_type @C.as.ImplicitAs.impl.Convert.loc8 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.b95: %C.as.ImplicitAs.impl.Convert.type.cd0 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.12d: type = fn_type @C.as.ImplicitAs.impl.Convert.loc8 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.7cf: %C.as.ImplicitAs.impl.Convert.type.12d = struct_value () [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %C.c02: type = class_type @C, @C(%int_1.5d2) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c66: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc9 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.75b: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc9 [concrete]
 // CHECK:STDOUT:   %pattern_type.07c: type = pattern_type %C.c02 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.af9: type = fn_type @C.as.ImplicitAs.impl.Convert.loc9 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.9a4: %C.as.ImplicitAs.impl.Convert.type.af9 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.f7e: type = fn_type @C.as.ImplicitAs.impl.Convert.loc9 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.e3d: %C.as.ImplicitAs.impl.Convert.type.f7e = struct_value () [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %C.70b: type = class_type @C, @C(%int_2.ef8) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.f9c: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc10 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.67d: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc10 [concrete]
 // CHECK:STDOUT:   %pattern_type.538: type = pattern_type %C.70b [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.5f9: type = fn_type @C.as.ImplicitAs.impl.Convert.loc10 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.aad: %C.as.ImplicitAs.impl.Convert.type.5f9 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.296: type = fn_type @C.as.ImplicitAs.impl.Convert.loc10 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.983: %C.as.ImplicitAs.impl.Convert.type.296 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %C.8cb: type = class_type @C, @C(%int_3.822) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c1f: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc11 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.876: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc11 [concrete]
 // CHECK:STDOUT:   %pattern_type.232: type = pattern_type %C.8cb [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.d96: type = fn_type @C.as.ImplicitAs.impl.Convert.loc11 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.9b7: %C.as.ImplicitAs.impl.Convert.type.d96 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.757: type = fn_type @C.as.ImplicitAs.impl.Convert.loc11 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.81e: %C.as.ImplicitAs.impl.Convert.type.757 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %C.ba2: type = class_type @C, @C(%int_4.940) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.097: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc12 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.8ed: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc12 [concrete]
 // CHECK:STDOUT:   %pattern_type.fe0: type = pattern_type %C.ba2 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.33c: type = fn_type @C.as.ImplicitAs.impl.Convert.loc12 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.b7b: %C.as.ImplicitAs.impl.Convert.type.33c = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.19e: type = fn_type @C.as.ImplicitAs.impl.Convert.loc12 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.dc6: %C.as.ImplicitAs.impl.Convert.type.19e = struct_value () [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_5.0f6: %i32 = int_value 5 [concrete]
 // CHECK:STDOUT:   %C.fcd: type = class_type @C, @C(%int_5.0f6) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.03f: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc13 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.aae: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc13 [concrete]
 // CHECK:STDOUT:   %pattern_type.e96: type = pattern_type %C.fcd [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.193: type = fn_type @C.as.ImplicitAs.impl.Convert.loc13 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.a6f: %C.as.ImplicitAs.impl.Convert.type.193 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.d0c: type = fn_type @C.as.ImplicitAs.impl.Convert.loc13 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.a11: %C.as.ImplicitAs.impl.Convert.type.d0c = struct_value () [concrete]
 // CHECK:STDOUT:   %int_6.462: Core.IntLiteral = int_value 6 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.efa: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.351: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_6.e56: %i32 = int_value 6 [concrete]
 // CHECK:STDOUT:   %C.675: type = class_type @C, @C(%int_6.e56) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.89c: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc14 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.574: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc14 [concrete]
 // CHECK:STDOUT:   %pattern_type.bc0: type = pattern_type %C.675 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.7d3: type = fn_type @C.as.ImplicitAs.impl.Convert.loc14 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.f7f: %C.as.ImplicitAs.impl.Convert.type.7d3 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.aa0: type = fn_type @C.as.ImplicitAs.impl.Convert.loc14 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.7d6: %C.as.ImplicitAs.impl.Convert.type.aa0 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_7.29f: Core.IntLiteral = int_value 7 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.3bd: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.c8a: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_7.0b1: %i32 = int_value 7 [concrete]
 // CHECK:STDOUT:   %C.884: type = class_type @C, @C(%int_7.0b1) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.217: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc15 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.e74: <witness> = impl_witness file.%ImplicitAs.impl_witness_table.loc15 [concrete]
 // CHECK:STDOUT:   %pattern_type.c15: type = pattern_type %C.884 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.167: type = fn_type @C.as.ImplicitAs.impl.Convert.loc15 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.e51: %C.as.ImplicitAs.impl.Convert.type.167 = struct_value () [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.07a: type = fn_type @C.as.ImplicitAs.impl.Convert.loc15 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.228: %C.as.ImplicitAs.impl.Convert.type.07a = struct_value () [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -182,8 +182,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -213,13 +213,13 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param0
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.6d8 [concrete] {} {
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.f1d [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc8_9.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc8_9.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc8_9.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:     %bound_method.loc8_9.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc8_9.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:     %.loc8_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:     %.loc8_9.2: %i32 = converted %int_0, %.loc8_9.1 [concrete = constants.%int_0.6a9]
@@ -227,17 +227,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc8 = impl_witness_table (@C.as.ImplicitAs.impl.6d8.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.6d8 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc8: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc8 [concrete = constants.%ImplicitAs.impl_witness.00c]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.b66 [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc8 = impl_witness_table (@C.as.ImplicitAs.impl.f1d.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.f1d [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc8: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc8 [concrete = constants.%ImplicitAs.impl_witness.998]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.401 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc9_9.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc9_9.1: <bound method> = bound_method %int_1, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc9_9.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:     %bound_method.loc9_9.2: <bound method> = bound_method %int_1, %specific_fn [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc9_9.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc9_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:     %.loc9_9.2: %i32 = converted %int_1, %.loc9_9.1 [concrete = constants.%int_1.5d2]
@@ -245,17 +245,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc9 = impl_witness_table (@C.as.ImplicitAs.impl.b66.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.b66 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc9: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc9 [concrete = constants.%ImplicitAs.impl_witness.c66]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.9de [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc9 = impl_witness_table (@C.as.ImplicitAs.impl.401.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.401 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc9: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc9 [concrete = constants.%ImplicitAs.impl_witness.75b]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.131 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc10_9.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc10_9.1: <bound method> = bound_method %int_2, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc10_9.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:     %bound_method.loc10_9.2: <bound method> = bound_method %int_2, %specific_fn [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc10_9.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc10_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:     %.loc10_9.2: %i32 = converted %int_2, %.loc10_9.1 [concrete = constants.%int_2.ef8]
@@ -263,17 +263,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc10 = impl_witness_table (@C.as.ImplicitAs.impl.9de.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.9de [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc10: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc10 [concrete = constants.%ImplicitAs.impl_witness.f9c]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.649 [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc10 = impl_witness_table (@C.as.ImplicitAs.impl.131.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.131 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc10: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc10 [concrete = constants.%ImplicitAs.impl_witness.67d]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.3b7 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc11_9.1: <bound method> = bound_method %int_3, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc11_9.1: <bound method> = bound_method %int_3, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc11_9.2: <bound method> = bound_method %int_3, %specific_fn [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:     %bound_method.loc11_9.2: <bound method> = bound_method %int_3, %specific_fn [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc11_9.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %.loc11_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_3.822]
 // CHECK:STDOUT:     %.loc11_9.2: %i32 = converted %int_3, %.loc11_9.1 [concrete = constants.%int_3.822]
@@ -281,17 +281,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc11 = impl_witness_table (@C.as.ImplicitAs.impl.649.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.649 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc11: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc11 [concrete = constants.%ImplicitAs.impl_witness.c1f]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.49b [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc11 = impl_witness_table (@C.as.ImplicitAs.impl.3b7.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.3b7 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc11: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc11 [concrete = constants.%ImplicitAs.impl_witness.876]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.5ce [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc12_9.1: <bound method> = bound_method %int_4, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc12_9.1: <bound method> = bound_method %int_4, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc12_9.2: <bound method> = bound_method %int_4, %specific_fn [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:     %bound_method.loc12_9.2: <bound method> = bound_method %int_4, %specific_fn [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc12_9.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:     %.loc12_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_4.940]
 // CHECK:STDOUT:     %.loc12_9.2: %i32 = converted %int_4, %.loc12_9.1 [concrete = constants.%int_4.940]
@@ -299,17 +299,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc12 = impl_witness_table (@C.as.ImplicitAs.impl.49b.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.49b [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc12: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc12 [concrete = constants.%ImplicitAs.impl_witness.097]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.75f [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc12 = impl_witness_table (@C.as.ImplicitAs.impl.5ce.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.5ce [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc12: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc12 [concrete = constants.%ImplicitAs.impl_witness.8ed]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.193 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc13_9.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc13_9.1: <bound method> = bound_method %int_5, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc13_9.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:     %bound_method.loc13_9.2: <bound method> = bound_method %int_5, %specific_fn [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc13_9.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:     %.loc13_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:     %.loc13_9.2: %i32 = converted %int_5, %.loc13_9.1 [concrete = constants.%int_5.0f6]
@@ -317,17 +317,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc13 = impl_witness_table (@C.as.ImplicitAs.impl.75f.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.75f [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc13: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc13 [concrete = constants.%ImplicitAs.impl_witness.03f]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.98f [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc13 = impl_witness_table (@C.as.ImplicitAs.impl.193.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.193 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc13: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc13 [concrete = constants.%ImplicitAs.impl_witness.aae]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.b1b [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_6: Core.IntLiteral = int_value 6 [concrete = constants.%int_6.462]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc14_9.1: <bound method> = bound_method %int_6, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc14_9.1: <bound method> = bound_method %int_6, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc14_9.2: <bound method> = bound_method %int_6, %specific_fn [concrete = constants.%bound_method.efa]
+// CHECK:STDOUT:     %bound_method.loc14_9.2: <bound method> = bound_method %int_6, %specific_fn [concrete = constants.%bound_method.351]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc14_9.2(%int_6) [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:     %.loc14_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:     %.loc14_9.2: %i32 = converted %int_6, %.loc14_9.1 [concrete = constants.%int_6.e56]
@@ -335,17 +335,17 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc14 = impl_witness_table (@C.as.ImplicitAs.impl.98f.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.98f [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc14: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc14 [concrete = constants.%ImplicitAs.impl_witness.89c]
-// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.9fd [concrete] {} {
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc14 = impl_witness_table (@C.as.ImplicitAs.impl.b1b.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.b1b [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc14: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc14 [concrete = constants.%ImplicitAs.impl_witness.574]
+// CHECK:STDOUT:   impl_decl @C.as.ImplicitAs.impl.c87 [concrete] {} {
 // CHECK:STDOUT:     %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
 // CHECK:STDOUT:     %int_7: Core.IntLiteral = int_value 7 [concrete = constants.%int_7.29f]
-// CHECK:STDOUT:     %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:     %bound_method.loc15_9.1: <bound method> = bound_method %int_7, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208]
+// CHECK:STDOUT:     %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:     %bound_method.loc15_9.1: <bound method> = bound_method %int_7, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2]
 // CHECK:STDOUT:     %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc15_9.2: <bound method> = bound_method %int_7, %specific_fn [concrete = constants.%bound_method.3bd]
+// CHECK:STDOUT:     %bound_method.loc15_9.2: <bound method> = bound_method %int_7, %specific_fn [concrete = constants.%bound_method.c8a]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc15_9.2(%int_7) [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:     %.loc15_9.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:     %.loc15_9.2: %i32 = converted %int_7, %.loc15_9.1 [concrete = constants.%int_7.0b1]
@@ -353,16 +353,16 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
 // CHECK:STDOUT:     %ImplicitAs.ref: %ImplicitAs.type.cc7 = name_ref ImplicitAs, imports.%Core.ImplicitAs [concrete = constants.%ImplicitAs.generic]
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
-// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.94e]
+// CHECK:STDOUT:     %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%D)> [concrete = constants.%ImplicitAs.type.2a2]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc15 = impl_witness_table (@C.as.ImplicitAs.impl.9fd.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.9fd [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc15: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc15 [concrete = constants.%ImplicitAs.impl_witness.217]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.loc15 = impl_witness_table (@C.as.ImplicitAs.impl.c87.%C.as.ImplicitAs.impl.Convert.decl), @C.as.ImplicitAs.impl.c87 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.loc15: <witness> = impl_witness %ImplicitAs.impl_witness_table.loc15 [concrete = constants.%ImplicitAs.impl_witness.e74]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(@C.%N.loc4_9.2: %i32) {
 // CHECK:STDOUT:   %N: %i32 = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.51e)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%N) [symbolic = %C (constants.%C.506)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness @C.%Destroy.impl_witness_table, @C.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type)]
@@ -404,8 +404,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = @D.%Destroy.impl_witness
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.6d8: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.cd0 = fn_decl @C.as.ImplicitAs.impl.Convert.loc8 [concrete = constants.%C.as.ImplicitAs.impl.Convert.b95] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.f1d: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.12d = fn_decl @C.as.ImplicitAs.impl.Convert.loc8 [concrete = constants.%C.as.ImplicitAs.impl.Convert.7cf] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.f33 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.f33 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -413,7 +413,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.c8d = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.6d8.%C [concrete = constants.%C.c8d]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.f1d.%C [concrete = constants.%C.c8d]
 // CHECK:STDOUT:     %self: %C.c8d = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -426,8 +426,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc8
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.b66: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.af9 = fn_decl @C.as.ImplicitAs.impl.Convert.loc9 [concrete = constants.%C.as.ImplicitAs.impl.Convert.9a4] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.401: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.f7e = fn_decl @C.as.ImplicitAs.impl.Convert.loc9 [concrete = constants.%C.as.ImplicitAs.impl.Convert.e3d] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.07c = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.07c = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -435,7 +435,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.c02 = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.b66.%C [concrete = constants.%C.c02]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.401.%C [concrete = constants.%C.c02]
 // CHECK:STDOUT:     %self: %C.c02 = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -448,8 +448,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.9de: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.5f9 = fn_decl @C.as.ImplicitAs.impl.Convert.loc10 [concrete = constants.%C.as.ImplicitAs.impl.Convert.aad] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.131: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.296 = fn_decl @C.as.ImplicitAs.impl.Convert.loc10 [concrete = constants.%C.as.ImplicitAs.impl.Convert.983] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.538 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.538 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -457,7 +457,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.70b = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.9de.%C [concrete = constants.%C.70b]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.131.%C [concrete = constants.%C.70b]
 // CHECK:STDOUT:     %self: %C.70b = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -470,8 +470,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc10
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.649: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.d96 = fn_decl @C.as.ImplicitAs.impl.Convert.loc11 [concrete = constants.%C.as.ImplicitAs.impl.Convert.9b7] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.3b7: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.757 = fn_decl @C.as.ImplicitAs.impl.Convert.loc11 [concrete = constants.%C.as.ImplicitAs.impl.Convert.81e] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.232 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.232 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -479,7 +479,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.8cb = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.649.%C [concrete = constants.%C.8cb]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.3b7.%C [concrete = constants.%C.8cb]
 // CHECK:STDOUT:     %self: %C.8cb = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -492,8 +492,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc11
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.49b: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.33c = fn_decl @C.as.ImplicitAs.impl.Convert.loc12 [concrete = constants.%C.as.ImplicitAs.impl.Convert.b7b] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.5ce: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.19e = fn_decl @C.as.ImplicitAs.impl.Convert.loc12 [concrete = constants.%C.as.ImplicitAs.impl.Convert.dc6] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.fe0 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.fe0 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -501,7 +501,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.ba2 = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.49b.%C [concrete = constants.%C.ba2]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.5ce.%C [concrete = constants.%C.ba2]
 // CHECK:STDOUT:     %self: %C.ba2 = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -514,8 +514,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc12
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.75f: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.193 = fn_decl @C.as.ImplicitAs.impl.Convert.loc13 [concrete = constants.%C.as.ImplicitAs.impl.Convert.a6f] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.193: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.d0c = fn_decl @C.as.ImplicitAs.impl.Convert.loc13 [concrete = constants.%C.as.ImplicitAs.impl.Convert.a11] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.e96 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.e96 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -523,7 +523,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.fcd = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.75f.%C [concrete = constants.%C.fcd]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.193.%C [concrete = constants.%C.fcd]
 // CHECK:STDOUT:     %self: %C.fcd = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -536,8 +536,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc13
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.98f: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.7d3 = fn_decl @C.as.ImplicitAs.impl.Convert.loc14 [concrete = constants.%C.as.ImplicitAs.impl.Convert.f7f] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.b1b: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.aa0 = fn_decl @C.as.ImplicitAs.impl.Convert.loc14 [concrete = constants.%C.as.ImplicitAs.impl.Convert.7d6] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.bc0 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.bc0 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -545,7 +545,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.675 = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.98f.%C [concrete = constants.%C.675]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.b1b.%C [concrete = constants.%C.675]
 // CHECK:STDOUT:     %self: %C.675 = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -558,8 +558,8 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   witness = file.%ImplicitAs.impl_witness.loc14
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.9fd: %C as %ImplicitAs.type {
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.167 = fn_decl @C.as.ImplicitAs.impl.Convert.loc15 [concrete = constants.%C.as.ImplicitAs.impl.Convert.e51] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.c87: %C as %ImplicitAs.type {
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.decl: %C.as.ImplicitAs.impl.Convert.type.07a = fn_decl @C.as.ImplicitAs.impl.Convert.loc15 [concrete = constants.%C.as.ImplicitAs.impl.Convert.228] {
 // CHECK:STDOUT:     %self.patt: %pattern_type.c15 = binding_pattern self [concrete]
 // CHECK:STDOUT:     %self.param_patt: %pattern_type.c15 = value_param_pattern %self.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %return.patt: %pattern_type.510 = return_slot_pattern [concrete]
@@ -567,7 +567,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %D.ref: type = name_ref D, file.%D.decl [concrete = constants.%D]
 // CHECK:STDOUT:     %self.param: %C.884 = value_param call_param0
-// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.9fd.%C [concrete = constants.%C.884]
+// CHECK:STDOUT:     %Self.ref: type = name_ref Self, @C.as.ImplicitAs.impl.c87.%C [concrete = constants.%C.884]
 // CHECK:STDOUT:     %self: %C.884 = bind_name self, %self.param
 // CHECK:STDOUT:     %return.param: ref %D = out_param call_param1
 // CHECK:STDOUT:     %return: ref %D = return_slot %return.param
@@ -589,7 +589,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C.506 [symbolic = @C.as.Destroy.impl.%C (constants.%C.506)]
 // CHECK:STDOUT:     impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:     %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%N.51e) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.1ba)]
+// CHECK:STDOUT:     %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table, @C.as.Destroy.impl(constants.%N.51e) [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.2a5)]
 // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:     complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -608,7 +608,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%D [concrete = constants.%D]
 // CHECK:STDOUT:   impl_decl @D.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@D.as.Destroy.impl.%D.as.Destroy.impl.Op.decl), @D.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.73d]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.05d]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.n.m.de8 [concrete = constants.%complete_type.ea0]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -636,18 +636,18 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %int_0.loc6_31: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_0.loc6_39: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc6_40.1: %struct_type.n.m.819 = struct_literal (%int_0.loc6_31, %int_0.loc6_39)
-// CHECK:STDOUT:   %impl.elem0.loc6_40.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_40.1: <bound method> = bound_method %int_0.loc6_31, %impl.elem0.loc6_40.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc6_40.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_40.1: <bound method> = bound_method %int_0.loc6_31, %impl.elem0.loc6_40.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc6_40.1: <specific function> = specific_function %impl.elem0.loc6_40.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_40.2: <bound method> = bound_method %int_0.loc6_31, %specific_fn.loc6_40.1 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc6_40.2: <bound method> = bound_method %int_0.loc6_31, %specific_fn.loc6_40.1 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_40.1: init %i32 = call %bound_method.loc6_40.2(%int_0.loc6_31) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_40.2: init %i32 = converted %int_0.loc6_31, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_40.1 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_40.3: ref %i32 = class_element_access %return, element0
 // CHECK:STDOUT:   %.loc6_40.4: init %i32 = initialize_from %.loc6_40.2 to %.loc6_40.3 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %impl.elem0.loc6_40.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc6_40.3: <bound method> = bound_method %int_0.loc6_39, %impl.elem0.loc6_40.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc6_40.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc6_40.3: <bound method> = bound_method %int_0.loc6_39, %impl.elem0.loc6_40.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc6_40.2: <specific function> = specific_function %impl.elem0.loc6_40.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_40.4: <bound method> = bound_method %int_0.loc6_39, %specific_fn.loc6_40.2 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc6_40.4: <bound method> = bound_method %int_0.loc6_39, %specific_fn.loc6_40.2 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_40.2: init %i32 = call %bound_method.loc6_40.4(%int_0.loc6_39) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_40.5: init %i32 = converted %int_0.loc6_39, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc6_40.2 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_40.6: ref %i32 = class_element_access %return, element1
@@ -728,7 +728,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%N.51e) {
 // CHECK:STDOUT:   %N => constants.%N.51e
 // CHECK:STDOUT:   %C => constants.%C.506
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1ba
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.2a5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%N.51e) {
@@ -811,28 +811,28 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %C.b00: type = class_type @C, @C(%int_0.6a9) [concrete]
 // CHECK:STDOUT:   %C.val.452: %C.b00 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.5f9: type = facet_type <@ImplicitAs, @ImplicitAs(%D)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.899: type = facet_type <@ImplicitAs, @ImplicitAs(%D)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.334: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%D) [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.1b1: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%N.51e) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.564: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N.51e) [symbolic]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.e88: %C.as.Destroy.impl.Op.type.564 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.0d4: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.ed4: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N.51e) [symbolic]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.dd8: %C.as.Destroy.impl.Op.type.ed4 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ptr.9e5: type = ptr_type %C.17a [symbolic]
 // CHECK:STDOUT:   %pattern_type.572: type = pattern_type %ptr.9e5 [symbolic]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
@@ -849,122 +849,122 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %C.c60: type = class_type @C, @C(%int_6.e56) [concrete]
 // CHECK:STDOUT:   %int_7.0b1: %i32 = int_value 7 [concrete]
 // CHECK:STDOUT:   %C.304: type = class_type @C, @C(%int_7.0b1) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.f53: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.f4b [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.014: %ImplicitAs.type.5f9 = facet_value %C.b00, (%ImplicitAs.impl_witness.f53) [concrete]
-// CHECK:STDOUT:   %.a9c: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.014 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.971: type = fn_type @C.as.ImplicitAs.impl.Convert.1 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.bf9: %C.as.ImplicitAs.impl.Convert.type.971 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c5e: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.369: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_0.6a9) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.e1e: %C.as.Destroy.impl.Op.type.369 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.e35: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.ee5 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.6e1: %ImplicitAs.type.899 = facet_value %C.b00, (%ImplicitAs.impl_witness.e35) [concrete]
+// CHECK:STDOUT:   %.93f: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.6e1 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.994: type = fn_type @C.as.ImplicitAs.impl.Convert.1 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.78d: %C.as.ImplicitAs.impl.Convert.type.994 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.c93: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_0.6a9) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.615: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_0.6a9) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.dbb: %C.as.Destroy.impl.Op.type.615 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.697: type = ptr_type %C.b00 [concrete]
 // CHECK:STDOUT:   %pattern_type.7d1: type = pattern_type %ptr.697 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.115: <specific function> = specific_function %C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(%int_0.6a9) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.d03: <specific function> = specific_function %C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(%int_0.6a9) [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.678: %C.674 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.fcb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.297 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.b8a: %ImplicitAs.type.5f9 = facet_value %C.674, (%ImplicitAs.impl_witness.fcb) [concrete]
-// CHECK:STDOUT:   %.7d6: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.b8a [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.bdd: type = fn_type @C.as.ImplicitAs.impl.Convert.2 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.c82: %C.as.ImplicitAs.impl.Convert.type.bdd = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.540: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_1.5d2) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.76c: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_1.5d2) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.c0c: %C.as.Destroy.impl.Op.type.76c = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.fb7: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.480 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.b04: %ImplicitAs.type.899 = facet_value %C.674, (%ImplicitAs.impl_witness.fb7) [concrete]
+// CHECK:STDOUT:   %.fdb: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.b04 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.900: type = fn_type @C.as.ImplicitAs.impl.Convert.2 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.b44: %C.as.ImplicitAs.impl.Convert.type.900 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.b8a: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_1.5d2) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.b82: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_1.5d2) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.3c7: %C.as.Destroy.impl.Op.type.b82 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.625: type = ptr_type %C.674 [concrete]
 // CHECK:STDOUT:   %pattern_type.559: type = pattern_type %ptr.625 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.252: <specific function> = specific_function %C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(%int_1.5d2) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.ac5: <specific function> = specific_function %C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(%int_1.5d2) [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.fb5: %C.681 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.746: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.8b3 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.d55: %ImplicitAs.type.5f9 = facet_value %C.681, (%ImplicitAs.impl_witness.746) [concrete]
-// CHECK:STDOUT:   %.987: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.d55 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.4c1: type = fn_type @C.as.ImplicitAs.impl.Convert.3 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.08c: %C.as.ImplicitAs.impl.Convert.type.4c1 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.c38: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_2.ef8) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.aaf: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_2.ef8) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.283: %C.as.Destroy.impl.Op.type.aaf = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.3de: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.be4 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.2fa: %ImplicitAs.type.899 = facet_value %C.681, (%ImplicitAs.impl_witness.3de) [concrete]
+// CHECK:STDOUT:   %.f81: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.2fa [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.ae1: type = fn_type @C.as.ImplicitAs.impl.Convert.3 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.dd6: %C.as.ImplicitAs.impl.Convert.type.ae1 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.979: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_2.ef8) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.681: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_2.ef8) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.f2d: %C.as.Destroy.impl.Op.type.681 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.3bd: type = ptr_type %C.681 [concrete]
 // CHECK:STDOUT:   %pattern_type.b50: type = pattern_type %ptr.3bd [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.228: <specific function> = specific_function %C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(%int_2.ef8) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.774: <specific function> = specific_function %C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(%int_2.ef8) [concrete]
 // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f79: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.fe7: %C.7ac = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.f79: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.db0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.aa1: %ImplicitAs.type.5f9 = facet_value %C.7ac, (%ImplicitAs.impl_witness.f79) [concrete]
-// CHECK:STDOUT:   %.efa: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.aa1 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.f89: type = fn_type @C.as.ImplicitAs.impl.Convert.4 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.2dd: %C.as.ImplicitAs.impl.Convert.type.f89 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.7b8: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_3.822) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.988: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_3.822) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.135: %C.as.Destroy.impl.Op.type.988 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.f64: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.636 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.857: %ImplicitAs.type.899 = facet_value %C.7ac, (%ImplicitAs.impl_witness.f64) [concrete]
+// CHECK:STDOUT:   %.427: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.857 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.cbe: type = fn_type @C.as.ImplicitAs.impl.Convert.4 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.d1c: %C.as.ImplicitAs.impl.Convert.type.cbe = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.dff: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_3.822) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.f7b: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_3.822) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.ee6: %C.as.Destroy.impl.Op.type.f7b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.2b1: type = ptr_type %C.7ac [concrete]
 // CHECK:STDOUT:   %pattern_type.9f4: type = pattern_type %ptr.2b1 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.111: <specific function> = specific_function %C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(%int_3.822) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.c71: <specific function> = specific_function %C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(%int_3.822) [concrete]
 // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.1da: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.564: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.1dd: %C.89d = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.16c: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.54d [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.750: %ImplicitAs.type.5f9 = facet_value %C.89d, (%ImplicitAs.impl_witness.16c) [concrete]
-// CHECK:STDOUT:   %.26e: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.750 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.2ce: type = fn_type @C.as.ImplicitAs.impl.Convert.5 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.009: %C.as.ImplicitAs.impl.Convert.type.2ce = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.ee9: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_4.940) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.5db: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_4.940) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.a34: %C.as.Destroy.impl.Op.type.5db = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c85: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.16f [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.221: %ImplicitAs.type.899 = facet_value %C.89d, (%ImplicitAs.impl_witness.c85) [concrete]
+// CHECK:STDOUT:   %.67f: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.221 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.876: type = fn_type @C.as.ImplicitAs.impl.Convert.5 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.db5: %C.as.ImplicitAs.impl.Convert.type.876 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.1d2: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_4.940) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.f38: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_4.940) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.d1c: %C.as.Destroy.impl.Op.type.f38 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c28b: type = ptr_type %C.89d [concrete]
 // CHECK:STDOUT:   %pattern_type.a33: type = pattern_type %ptr.c28b [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.1d2: <specific function> = specific_function %C.as.Destroy.impl.Op.a34, @C.as.Destroy.impl.Op(%int_4.940) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.12e: <specific function> = specific_function %C.as.Destroy.impl.Op.d1c, @C.as.Destroy.impl.Op(%int_4.940) [concrete]
 // CHECK:STDOUT:   %int_5.64b: Core.IntLiteral = int_value 5 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.a25: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.918: <bound method> = bound_method %int_5.64b, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.a4a: %C.f0a = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.aa9: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.e3f [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.8cc: %ImplicitAs.type.5f9 = facet_value %C.f0a, (%ImplicitAs.impl_witness.aa9) [concrete]
-// CHECK:STDOUT:   %.eaf: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.8cc [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.e9d: type = fn_type @C.as.ImplicitAs.impl.Convert.6 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.b66: %C.as.ImplicitAs.impl.Convert.type.e9d = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.1d7: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_5.0f6) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.1a4: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_5.0f6) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.dab: %C.as.Destroy.impl.Op.type.1a4 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.469: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.865 [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.d2e: %ImplicitAs.type.899 = facet_value %C.f0a, (%ImplicitAs.impl_witness.469) [concrete]
+// CHECK:STDOUT:   %.745: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.d2e [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.043: type = fn_type @C.as.ImplicitAs.impl.Convert.6 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.a63: %C.as.ImplicitAs.impl.Convert.type.043 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.adc: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_5.0f6) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.743: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_5.0f6) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.828: %C.as.Destroy.impl.Op.type.743 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.24c: type = ptr_type %C.f0a [concrete]
 // CHECK:STDOUT:   %pattern_type.37e: type = pattern_type %ptr.24c [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.89c: <specific function> = specific_function %C.as.Destroy.impl.Op.dab, @C.as.Destroy.impl.Op(%int_5.0f6) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.295: <specific function> = specific_function %C.as.Destroy.impl.Op.828, @C.as.Destroy.impl.Op(%int_5.0f6) [concrete]
 // CHECK:STDOUT:   %int_6.462: Core.IntLiteral = int_value 6 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.efa: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.351: <bound method> = bound_method %int_6.462, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.a4b: %C.c60 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.e4d: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b31 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.a69: %ImplicitAs.type.5f9 = facet_value %C.c60, (%ImplicitAs.impl_witness.e4d) [concrete]
-// CHECK:STDOUT:   %.874: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.a69 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.4b8: type = fn_type @C.as.ImplicitAs.impl.Convert.7 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.f59: %C.as.ImplicitAs.impl.Convert.type.4b8 = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.949: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_6.e56) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.b4a: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_6.e56) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.326: %C.as.Destroy.impl.Op.type.b4a = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.68e: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.7ee [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.9ea: %ImplicitAs.type.899 = facet_value %C.c60, (%ImplicitAs.impl_witness.68e) [concrete]
+// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.9ea [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.7be: type = fn_type @C.as.ImplicitAs.impl.Convert.7 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.e2f: %C.as.ImplicitAs.impl.Convert.type.7be = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.10e: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_6.e56) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.06a: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_6.e56) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.c43: %C.as.Destroy.impl.Op.type.06a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.b5e: type = ptr_type %C.c60 [concrete]
 // CHECK:STDOUT:   %pattern_type.667: type = pattern_type %ptr.b5e [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.e3f: <specific function> = specific_function %C.as.Destroy.impl.Op.326, @C.as.Destroy.impl.Op(%int_6.e56) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.210: <specific function> = specific_function %C.as.Destroy.impl.Op.c43, @C.as.Destroy.impl.Op(%int_6.e56) [concrete]
 // CHECK:STDOUT:   %int_7.29f: Core.IntLiteral = int_value 7 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.3bd: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.c8a: <bound method> = bound_method %int_7.29f, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %C.val.f9f: %C.304 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.0ca: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.056 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.cca: %ImplicitAs.type.5f9 = facet_value %C.304, (%ImplicitAs.impl_witness.0ca) [concrete]
-// CHECK:STDOUT:   %.79b: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.cca [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.c7e: type = fn_type @C.as.ImplicitAs.impl.Convert.8 [concrete]
-// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.6c1: %C.as.ImplicitAs.impl.Convert.type.c7e = struct_value () [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.786: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%int_7.0b1) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.8c9: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_7.0b1) [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.da6: %C.as.Destroy.impl.Op.type.8c9 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.7f9: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.9cd [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.466: %ImplicitAs.type.899 = facet_value %C.304, (%ImplicitAs.impl_witness.7f9) [concrete]
+// CHECK:STDOUT:   %.bfa: type = fn_type_with_self_type %ImplicitAs.Convert.type.334, %ImplicitAs.facet.466 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.type.c30: type = fn_type @C.as.ImplicitAs.impl.Convert.8 [concrete]
+// CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.5ea: %C.as.ImplicitAs.impl.Convert.type.c30 = struct_value () [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.65d: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%int_7.0b1) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type.77c: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%int_7.0b1) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.518: %C.as.Destroy.impl.Op.type.77c = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.dc3: type = ptr_type %C.304 [concrete]
 // CHECK:STDOUT:   %pattern_type.12a: type = pattern_type %ptr.dc3 [concrete]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.0fc: <specific function> = specific_function %C.as.Destroy.impl.Op.da6, @C.as.Destroy.impl.Op(%int_7.0b1) [concrete]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.1ed: <specific function> = specific_function %C.as.Destroy.impl.Op.518, @C.as.Destroy.impl.Op(%int_7.0b1) [concrete]
 // CHECK:STDOUT:   %Make.type: type = fn_type @Make [concrete]
 // CHECK:STDOUT:   %Make: %Make.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -994,59 +994,59 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.import_ref.8f2: <witness> = import_ref P//library, loc4_19, loaded [concrete = constants.%complete_type.357]
 // CHECK:STDOUT:   %P.import_ref.f65 = import_ref P//library, inst53 [no loc], unloaded
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %P.import_ref.5a7: <witness> = import_ref P//library, loc4_18, loaded [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.1b1)]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %P.import_ref.82f: <witness> = import_ref P//library, loc4_18, loaded [symbolic = @C.as.Destroy.impl.%Destroy.impl_witness (constants.%Destroy.impl_witness.0d4)]
 // CHECK:STDOUT:   %P.import_ref.1b7f13.2: %i32 = import_ref P//library, loc4_9, loaded [symbolic = @C.%N (constants.%N.51e)]
 // CHECK:STDOUT:   %P.import_ref.8b3: type = import_ref P//library, loc4_18, loaded [symbolic = @C.as.Destroy.impl.%C (constants.%C.17a)]
-// CHECK:STDOUT:   %P.import_ref.cb9298.1: type = import_ref P//library, inst56 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %P.import_ref.20a: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.564) = import_ref P//library, loc4_18, loaded [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.e88)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table.bb0 = impl_witness_table (%P.import_ref.20a), @C.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %P.import_ref.063034.1: type = import_ref P//library, inst56 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %P.import_ref.557: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ed4) = import_ref P//library, loc4_18, loaded [symbolic = @C.as.Destroy.impl.%C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.dd8)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table.f25 = impl_witness_table (%P.import_ref.557), @C.as.Destroy.impl [concrete]
 // CHECK:STDOUT:   %P.import_ref.1b7f13.3: %i32 = import_ref P//library, loc4_9, loaded [symbolic = @C.%N (constants.%N.51e)]
-// CHECK:STDOUT:   %P.import_ref.0c3 = import_ref P//library, loc5_9, unloaded
+// CHECK:STDOUT:   %P.import_ref.cd9 = import_ref P//library, loc5_9, unloaded
 // CHECK:STDOUT:   %P.import_ref.130: type = import_ref P//library, loc5_9, loaded [concrete = constants.%D]
-// CHECK:STDOUT:   %P.import_ref.cb9298.2: type = import_ref P//library, inst56 [no loc], loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %P.import_ref.708: <witness> = import_ref P//library, loc8_33, loaded [concrete = constants.%ImplicitAs.impl_witness.f53]
+// CHECK:STDOUT:   %P.import_ref.063034.2: type = import_ref P//library, inst56 [no loc], loaded [concrete = constants.%Destroy.type]
+// CHECK:STDOUT:   %P.import_ref.dda: <witness> = import_ref P//library, loc8_33, loaded [concrete = constants.%ImplicitAs.impl_witness.e35]
 // CHECK:STDOUT:   %P.import_ref.d2c: type = import_ref P//library, loc8_9, loaded [concrete = constants.%C.b00]
-// CHECK:STDOUT:   %P.import_ref.b769fa.1: type = import_ref P//library, loc8_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.ae8: <witness> = import_ref P//library, loc9_33, loaded [concrete = constants.%ImplicitAs.impl_witness.fcb]
+// CHECK:STDOUT:   %P.import_ref.a4653a.1: type = import_ref P//library, loc8_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.447: <witness> = import_ref P//library, loc9_33, loaded [concrete = constants.%ImplicitAs.impl_witness.fb7]
 // CHECK:STDOUT:   %P.import_ref.cf3: type = import_ref P//library, loc9_9, loaded [concrete = constants.%C.674]
-// CHECK:STDOUT:   %P.import_ref.b769fa.2: type = import_ref P//library, loc9_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.2fc: <witness> = import_ref P//library, loc10_33, loaded [concrete = constants.%ImplicitAs.impl_witness.746]
+// CHECK:STDOUT:   %P.import_ref.a4653a.2: type = import_ref P//library, loc9_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.f61: <witness> = import_ref P//library, loc10_33, loaded [concrete = constants.%ImplicitAs.impl_witness.3de]
 // CHECK:STDOUT:   %P.import_ref.095: type = import_ref P//library, loc10_9, loaded [concrete = constants.%C.681]
-// CHECK:STDOUT:   %P.import_ref.b769fa.3: type = import_ref P//library, loc10_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.d75: <witness> = import_ref P//library, loc11_33, loaded [concrete = constants.%ImplicitAs.impl_witness.f79]
+// CHECK:STDOUT:   %P.import_ref.a4653a.3: type = import_ref P//library, loc10_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.3f5: <witness> = import_ref P//library, loc11_33, loaded [concrete = constants.%ImplicitAs.impl_witness.f64]
 // CHECK:STDOUT:   %P.import_ref.82b: type = import_ref P//library, loc11_9, loaded [concrete = constants.%C.7ac]
-// CHECK:STDOUT:   %P.import_ref.b769fa.4: type = import_ref P//library, loc11_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.6c2: <witness> = import_ref P//library, loc12_33, loaded [concrete = constants.%ImplicitAs.impl_witness.16c]
+// CHECK:STDOUT:   %P.import_ref.a4653a.4: type = import_ref P//library, loc11_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.a0f: <witness> = import_ref P//library, loc12_33, loaded [concrete = constants.%ImplicitAs.impl_witness.c85]
 // CHECK:STDOUT:   %P.import_ref.f7d: type = import_ref P//library, loc12_9, loaded [concrete = constants.%C.89d]
-// CHECK:STDOUT:   %P.import_ref.b769fa.5: type = import_ref P//library, loc12_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.0e0: <witness> = import_ref P//library, loc13_33, loaded [concrete = constants.%ImplicitAs.impl_witness.aa9]
+// CHECK:STDOUT:   %P.import_ref.a4653a.5: type = import_ref P//library, loc12_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.e36: <witness> = import_ref P//library, loc13_33, loaded [concrete = constants.%ImplicitAs.impl_witness.469]
 // CHECK:STDOUT:   %P.import_ref.a43: type = import_ref P//library, loc13_9, loaded [concrete = constants.%C.f0a]
-// CHECK:STDOUT:   %P.import_ref.b769fa.6: type = import_ref P//library, loc13_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.e6a: <witness> = import_ref P//library, loc14_33, loaded [concrete = constants.%ImplicitAs.impl_witness.e4d]
+// CHECK:STDOUT:   %P.import_ref.a4653a.6: type = import_ref P//library, loc13_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.14d: <witness> = import_ref P//library, loc14_33, loaded [concrete = constants.%ImplicitAs.impl_witness.68e]
 // CHECK:STDOUT:   %P.import_ref.654: type = import_ref P//library, loc14_9, loaded [concrete = constants.%C.c60]
-// CHECK:STDOUT:   %P.import_ref.b769fa.7: type = import_ref P//library, loc14_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.5f0: <witness> = import_ref P//library, loc15_33, loaded [concrete = constants.%ImplicitAs.impl_witness.0ca]
+// CHECK:STDOUT:   %P.import_ref.a4653a.7: type = import_ref P//library, loc14_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.2b3: <witness> = import_ref P//library, loc15_33, loaded [concrete = constants.%ImplicitAs.impl_witness.7f9]
 // CHECK:STDOUT:   %P.import_ref.dae: type = import_ref P//library, loc15_9, loaded [concrete = constants.%C.304]
-// CHECK:STDOUT:   %P.import_ref.b769fa.8: type = import_ref P//library, loc15_31, loaded [concrete = constants.%ImplicitAs.type.5f9]
-// CHECK:STDOUT:   %P.import_ref.e36: %C.as.ImplicitAs.impl.Convert.type.971 = import_ref P//library, loc8_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.bf9]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.f4b = impl_witness_table (%P.import_ref.e36), @C.as.ImplicitAs.impl.284 [concrete]
+// CHECK:STDOUT:   %P.import_ref.a4653a.8: type = import_ref P//library, loc15_31, loaded [concrete = constants.%ImplicitAs.type.899]
+// CHECK:STDOUT:   %P.import_ref.f2b: %C.as.ImplicitAs.impl.Convert.type.994 = import_ref P//library, loc8_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.78d]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.ee5 = impl_witness_table (%P.import_ref.f2b), @C.as.ImplicitAs.impl.87c [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
-// CHECK:STDOUT:   %P.import_ref.38e: %C.as.ImplicitAs.impl.Convert.type.bdd = import_ref P//library, loc9_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.c82]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.297 = impl_witness_table (%P.import_ref.38e), @C.as.ImplicitAs.impl.628 [concrete]
-// CHECK:STDOUT:   %P.import_ref.5ab: %C.as.ImplicitAs.impl.Convert.type.4c1 = import_ref P//library, loc10_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.08c]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.8b3 = impl_witness_table (%P.import_ref.5ab), @C.as.ImplicitAs.impl.88c [concrete]
-// CHECK:STDOUT:   %P.import_ref.db1: %C.as.ImplicitAs.impl.Convert.type.f89 = import_ref P//library, loc11_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.2dd]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.db0 = impl_witness_table (%P.import_ref.db1), @C.as.ImplicitAs.impl.f76 [concrete]
-// CHECK:STDOUT:   %P.import_ref.134: %C.as.ImplicitAs.impl.Convert.type.2ce = import_ref P//library, loc12_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.009]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.54d = impl_witness_table (%P.import_ref.134), @C.as.ImplicitAs.impl.521 [concrete]
-// CHECK:STDOUT:   %P.import_ref.9a0: %C.as.ImplicitAs.impl.Convert.type.e9d = import_ref P//library, loc13_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.b66]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.e3f = impl_witness_table (%P.import_ref.9a0), @C.as.ImplicitAs.impl.ac4 [concrete]
-// CHECK:STDOUT:   %P.import_ref.b13: %C.as.ImplicitAs.impl.Convert.type.4b8 = import_ref P//library, loc14_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.f59]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b31 = impl_witness_table (%P.import_ref.b13), @C.as.ImplicitAs.impl.3bf [concrete]
-// CHECK:STDOUT:   %P.import_ref.216: %C.as.ImplicitAs.impl.Convert.type.c7e = import_ref P//library, loc15_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.6c1]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.056 = impl_witness_table (%P.import_ref.216), @C.as.ImplicitAs.impl.935 [concrete]
+// CHECK:STDOUT:   %P.import_ref.057: %C.as.ImplicitAs.impl.Convert.type.900 = import_ref P//library, loc9_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.b44]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.480 = impl_witness_table (%P.import_ref.057), @C.as.ImplicitAs.impl.a01 [concrete]
+// CHECK:STDOUT:   %P.import_ref.594: %C.as.ImplicitAs.impl.Convert.type.ae1 = import_ref P//library, loc10_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.dd6]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.be4 = impl_witness_table (%P.import_ref.594), @C.as.ImplicitAs.impl.390 [concrete]
+// CHECK:STDOUT:   %P.import_ref.a12: %C.as.ImplicitAs.impl.Convert.type.cbe = import_ref P//library, loc11_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.d1c]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.636 = impl_witness_table (%P.import_ref.a12), @C.as.ImplicitAs.impl.071 [concrete]
+// CHECK:STDOUT:   %P.import_ref.df9: %C.as.ImplicitAs.impl.Convert.type.876 = import_ref P//library, loc12_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.db5]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.16f = impl_witness_table (%P.import_ref.df9), @C.as.ImplicitAs.impl.891 [concrete]
+// CHECK:STDOUT:   %P.import_ref.c67: %C.as.ImplicitAs.impl.Convert.type.043 = import_ref P//library, loc13_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.a63]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.865 = impl_witness_table (%P.import_ref.c67), @C.as.ImplicitAs.impl.882 [concrete]
+// CHECK:STDOUT:   %P.import_ref.ece: %C.as.ImplicitAs.impl.Convert.type.7be = import_ref P//library, loc14_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.e2f]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.7ee = impl_witness_table (%P.import_ref.ece), @C.as.ImplicitAs.impl.ad9 [concrete]
+// CHECK:STDOUT:   %P.import_ref.58e: %C.as.ImplicitAs.impl.Convert.type.c30 = import_ref P//library, loc15_65, loaded [concrete = constants.%C.as.ImplicitAs.impl.Convert.5ea]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.9cd = impl_witness_table (%P.import_ref.58e), @C.as.ImplicitAs.impl.5d4 [concrete]
 // CHECK:STDOUT:   %P.Make: %Make.type = import_ref P//library, Make, loaded [concrete = constants.%Make]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -1080,61 +1080,61 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: generic impl @C.as.Destroy.impl(imports.%P.import_ref.1b7f13.2: %i32) [from "library.carbon"] {
 // CHECK:STDOUT:   %N: %i32 = bind_symbolic_name N, 0 [symbolic = %N (constants.%N.51e)]
 // CHECK:STDOUT:   %C: type = class_type @C, @C(%N) [symbolic = %C (constants.%C.17a)]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.bb0, @C.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.1b1)]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness imports.%Destroy.impl_witness_table.f25, @C.as.Destroy.impl(%N) [symbolic = %Destroy.impl_witness (constants.%Destroy.impl_witness.0d4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.564)]
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.564) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.e88)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op, @C.as.Destroy.impl(%N) [symbolic = %C.as.Destroy.impl.Op.type (constants.%C.as.Destroy.impl.Op.type.ed4)]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op: @C.as.Destroy.impl.%C.as.Destroy.impl.Op.type (%C.as.Destroy.impl.Op.type.ed4) = struct_value () [symbolic = %C.as.Destroy.impl.Op (constants.%C.as.Destroy.impl.Op.dd8)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   impl: imports.%P.import_ref.8b3 as imports.%P.import_ref.cb9298.1 {
+// CHECK:STDOUT:   impl: imports.%P.import_ref.8b3 as imports.%P.import_ref.063034.1 {
 // CHECK:STDOUT:   !members:
-// CHECK:STDOUT:     witness = imports.%P.import_ref.5a7
+// CHECK:STDOUT:     witness = imports.%P.import_ref.82f
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%P.import_ref.130 as imports.%P.import_ref.cb9298.2 [from "library.carbon"] {
+// CHECK:STDOUT: impl @D.as.Destroy.impl: imports.%P.import_ref.130 as imports.%P.import_ref.063034.2 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.0c3
+// CHECK:STDOUT:   witness = imports.%P.import_ref.cd9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.284: imports.%P.import_ref.d2c as imports.%P.import_ref.b769fa.1 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.87c: imports.%P.import_ref.d2c as imports.%P.import_ref.a4653a.1 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.708
+// CHECK:STDOUT:   witness = imports.%P.import_ref.dda
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.628: imports.%P.import_ref.cf3 as imports.%P.import_ref.b769fa.2 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.a01: imports.%P.import_ref.cf3 as imports.%P.import_ref.a4653a.2 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.ae8
+// CHECK:STDOUT:   witness = imports.%P.import_ref.447
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.88c: imports.%P.import_ref.095 as imports.%P.import_ref.b769fa.3 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.390: imports.%P.import_ref.095 as imports.%P.import_ref.a4653a.3 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.2fc
+// CHECK:STDOUT:   witness = imports.%P.import_ref.f61
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.f76: imports.%P.import_ref.82b as imports.%P.import_ref.b769fa.4 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.071: imports.%P.import_ref.82b as imports.%P.import_ref.a4653a.4 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.d75
+// CHECK:STDOUT:   witness = imports.%P.import_ref.3f5
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.521: imports.%P.import_ref.f7d as imports.%P.import_ref.b769fa.5 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.891: imports.%P.import_ref.f7d as imports.%P.import_ref.a4653a.5 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.6c2
+// CHECK:STDOUT:   witness = imports.%P.import_ref.a0f
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.ac4: imports.%P.import_ref.a43 as imports.%P.import_ref.b769fa.6 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.882: imports.%P.import_ref.a43 as imports.%P.import_ref.a4653a.6 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.0e0
+// CHECK:STDOUT:   witness = imports.%P.import_ref.e36
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.3bf: imports.%P.import_ref.654 as imports.%P.import_ref.b769fa.7 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.ad9: imports.%P.import_ref.654 as imports.%P.import_ref.a4653a.7 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.e6a
+// CHECK:STDOUT:   witness = imports.%P.import_ref.14d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.935: imports.%P.import_ref.dae as imports.%P.import_ref.b769fa.8 [from "library.carbon"] {
+// CHECK:STDOUT: impl @C.as.ImplicitAs.impl.5d4: imports.%P.import_ref.dae as imports.%P.import_ref.a4653a.8 [from "library.carbon"] {
 // CHECK:STDOUT: !members:
-// CHECK:STDOUT:   witness = imports.%P.import_ref.5f0
+// CHECK:STDOUT:   witness = imports.%P.import_ref.2b3
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: class @D [from "library.carbon"] {
@@ -1169,10 +1169,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc7: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc7: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc7_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc7_34.1: <bound method> = bound_method %int_0, %impl.elem0.loc7_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc7_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc7_34.1: <bound method> = bound_method %int_0, %impl.elem0.loc7_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc7: <specific function> = specific_function %impl.elem0.loc7_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_34.2: <bound method> = bound_method %int_0, %specific_fn.loc7 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc7_34.2: <bound method> = bound_method %int_0, %specific_fn.loc7 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7: init %i32 = call %bound_method.loc7_34.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc7_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc7_34.2: %i32 = converted %int_0, %.loc7_34.1 [concrete = constants.%int_0.6a9]
@@ -1181,14 +1181,14 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc7_24.3: init %C.b00 = class_init (), %.loc7_24.2 [concrete = constants.%C.val.452]
 // CHECK:STDOUT:   %.loc7_24.4: ref %C.b00 = temporary %.loc7_24.2, %.loc7_24.3
 // CHECK:STDOUT:   %.loc7_26.1: ref %C.b00 = converted %.loc7_24.1, %.loc7_24.4
-// CHECK:STDOUT:   %impl.elem0.loc7_35: %.a9c = impl_witness_access constants.%ImplicitAs.impl_witness.f53, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.bf9]
+// CHECK:STDOUT:   %impl.elem0.loc7_35: %.93f = impl_witness_access constants.%ImplicitAs.impl_witness.e35, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.78d]
 // CHECK:STDOUT:   %bound_method.loc7_35: <bound method> = bound_method %.loc7_26.1, %impl.elem0.loc7_35
 // CHECK:STDOUT:   %.loc7_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc7_26.2: %C.b00 = bind_value %.loc7_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc7: init %D = call %bound_method.loc7_35(%.loc7_26.2) to %.loc7_35.1
 // CHECK:STDOUT:   %.loc7_35.2: init %D = converted %.loc7_26.1, %C.as.ImplicitAs.impl.Convert.call.loc7
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.1: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.1: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.1: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc7_24.1: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.1: init %empty_tuple.type = call %bound_method.loc7_24.1(%addr.loc7_24.1)
@@ -1203,10 +1203,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc8: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc8: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc8_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc8_34.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc8_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc8_34.1: <bound method> = bound_method %int_1, %impl.elem0.loc8_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc8: <specific function> = specific_function %impl.elem0.loc8_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc8_34.2: <bound method> = bound_method %int_1, %specific_fn.loc8 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc8_34.2: <bound method> = bound_method %int_1, %specific_fn.loc8 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8: init %i32 = call %bound_method.loc8_34.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc8_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc8 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc8_34.2: %i32 = converted %int_1, %.loc8_34.1 [concrete = constants.%int_1.5d2]
@@ -1215,19 +1215,19 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc8_24.3: init %C.674 = class_init (), %.loc8_24.2 [concrete = constants.%C.val.678]
 // CHECK:STDOUT:   %.loc8_24.4: ref %C.674 = temporary %.loc8_24.2, %.loc8_24.3
 // CHECK:STDOUT:   %.loc8_26.1: ref %C.674 = converted %.loc8_24.1, %.loc8_24.4
-// CHECK:STDOUT:   %impl.elem0.loc8_35: %.7d6 = impl_witness_access constants.%ImplicitAs.impl_witness.fcb, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.c82]
+// CHECK:STDOUT:   %impl.elem0.loc8_35: %.fdb = impl_witness_access constants.%ImplicitAs.impl_witness.fb7, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.b44]
 // CHECK:STDOUT:   %bound_method.loc8_35: <bound method> = bound_method %.loc8_26.1, %impl.elem0.loc8_35
 // CHECK:STDOUT:   %.loc8_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc8_26.2: %C.674 = bind_value %.loc8_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc8: init %D = call %bound_method.loc8_35(%.loc8_26.2) to %.loc8_35.1
 // CHECK:STDOUT:   %.loc8_35.2: init %D = converted %.loc8_26.1, %C.as.ImplicitAs.impl.Convert.call.loc8
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.1: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.1: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.1: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_24.1: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.1: init %empty_tuple.type = call %bound_method.loc8_24.1(%addr.loc8_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.2: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.2: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.2: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc7_24.2: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.2: init %empty_tuple.type = call %bound_method.loc7_24.2(%addr.loc7_24.2)
@@ -1242,10 +1242,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc9: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc9: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
-// CHECK:STDOUT:   %impl.elem0.loc9_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc9_34.1: <bound method> = bound_method %int_2, %impl.elem0.loc9_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc9_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc9_34.1: <bound method> = bound_method %int_2, %impl.elem0.loc9_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc9: <specific function> = specific_function %impl.elem0.loc9_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc9_34.2: <bound method> = bound_method %int_2, %specific_fn.loc9 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc9_34.2: <bound method> = bound_method %int_2, %specific_fn.loc9 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9: init %i32 = call %bound_method.loc9_34.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc9_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc9 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc9_34.2: %i32 = converted %int_2, %.loc9_34.1 [concrete = constants.%int_2.ef8]
@@ -1254,24 +1254,24 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc9_24.3: init %C.681 = class_init (), %.loc9_24.2 [concrete = constants.%C.val.fb5]
 // CHECK:STDOUT:   %.loc9_24.4: ref %C.681 = temporary %.loc9_24.2, %.loc9_24.3
 // CHECK:STDOUT:   %.loc9_26.1: ref %C.681 = converted %.loc9_24.1, %.loc9_24.4
-// CHECK:STDOUT:   %impl.elem0.loc9_35: %.987 = impl_witness_access constants.%ImplicitAs.impl_witness.746, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.08c]
+// CHECK:STDOUT:   %impl.elem0.loc9_35: %.f81 = impl_witness_access constants.%ImplicitAs.impl_witness.3de, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.dd6]
 // CHECK:STDOUT:   %bound_method.loc9_35: <bound method> = bound_method %.loc9_26.1, %impl.elem0.loc9_35
 // CHECK:STDOUT:   %.loc9_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc9_26.2: %C.681 = bind_value %.loc9_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc9: init %D = call %bound_method.loc9_35(%.loc9_26.2) to %.loc9_35.1
 // CHECK:STDOUT:   %.loc9_35.2: init %D = converted %.loc9_26.1, %C.as.ImplicitAs.impl.Convert.call.loc9
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.1: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.1: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.4: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.1: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.4
 // CHECK:STDOUT:   %addr.loc9_24.1: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.1: init %empty_tuple.type = call %bound_method.loc9_24.1(%addr.loc9_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.2: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.5: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.2: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.5: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.2: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.5
 // CHECK:STDOUT:   %addr.loc8_24.2: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.2: init %empty_tuple.type = call %bound_method.loc8_24.2(%addr.loc8_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.3: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.6: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.3: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.6: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.3: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.6
 // CHECK:STDOUT:   %addr.loc7_24.3: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.3: init %empty_tuple.type = call %bound_method.loc7_24.3(%addr.loc7_24.3)
@@ -1286,10 +1286,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc10: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc10: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
-// CHECK:STDOUT:   %impl.elem0.loc10_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc10_34.1: <bound method> = bound_method %int_3, %impl.elem0.loc10_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b30]
+// CHECK:STDOUT:   %impl.elem0.loc10_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc10_34.1: <bound method> = bound_method %int_3, %impl.elem0.loc10_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c36]
 // CHECK:STDOUT:   %specific_fn.loc10: <specific function> = specific_function %impl.elem0.loc10_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc10_34.2: <bound method> = bound_method %int_3, %specific_fn.loc10 [concrete = constants.%bound_method.047]
+// CHECK:STDOUT:   %bound_method.loc10_34.2: <bound method> = bound_method %int_3, %specific_fn.loc10 [concrete = constants.%bound_method.f79]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10: init %i32 = call %bound_method.loc10_34.2(%int_3) [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc10_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc10 [concrete = constants.%int_3.822]
 // CHECK:STDOUT:   %.loc10_34.2: %i32 = converted %int_3, %.loc10_34.1 [concrete = constants.%int_3.822]
@@ -1298,29 +1298,29 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc10_24.3: init %C.7ac = class_init (), %.loc10_24.2 [concrete = constants.%C.val.fe7]
 // CHECK:STDOUT:   %.loc10_24.4: ref %C.7ac = temporary %.loc10_24.2, %.loc10_24.3
 // CHECK:STDOUT:   %.loc10_26.1: ref %C.7ac = converted %.loc10_24.1, %.loc10_24.4
-// CHECK:STDOUT:   %impl.elem0.loc10_35: %.efa = impl_witness_access constants.%ImplicitAs.impl_witness.f79, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.2dd]
+// CHECK:STDOUT:   %impl.elem0.loc10_35: %.427 = impl_witness_access constants.%ImplicitAs.impl_witness.f64, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.d1c]
 // CHECK:STDOUT:   %bound_method.loc10_35: <bound method> = bound_method %.loc10_26.1, %impl.elem0.loc10_35
 // CHECK:STDOUT:   %.loc10_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc10_26.2: %C.7ac = bind_value %.loc10_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc10: init %D = call %bound_method.loc10_35(%.loc10_26.2) to %.loc10_35.1
 // CHECK:STDOUT:   %.loc10_35.2: init %D = converted %.loc10_26.1, %C.as.ImplicitAs.impl.Convert.call.loc10
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.1: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.135
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.7: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.111]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.1: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.ee6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.7: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.c71]
 // CHECK:STDOUT:   %bound_method.loc10_24.1: <bound method> = bound_method %.loc10_24.4, %C.as.Destroy.impl.Op.specific_fn.7
 // CHECK:STDOUT:   %addr.loc10_24.1: %ptr.2b1 = addr_of %.loc10_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc10_24.1: init %empty_tuple.type = call %bound_method.loc10_24.1(%addr.loc10_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.2: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.8: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.2: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.8: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.2: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.8
 // CHECK:STDOUT:   %addr.loc9_24.2: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.2: init %empty_tuple.type = call %bound_method.loc9_24.2(%addr.loc9_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.3: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.9: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.3: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.9: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.3: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.9
 // CHECK:STDOUT:   %addr.loc8_24.3: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.3: init %empty_tuple.type = call %bound_method.loc8_24.3(%addr.loc8_24.3)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.4: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.10: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.4: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.10: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.4: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.10
 // CHECK:STDOUT:   %addr.loc7_24.4: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.4: init %empty_tuple.type = call %bound_method.loc7_24.4(%addr.loc7_24.4)
@@ -1335,10 +1335,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc11: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc11: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
-// CHECK:STDOUT:   %impl.elem0.loc11_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc11_34.1: <bound method> = bound_method %int_4, %impl.elem0.loc11_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ac3]
+// CHECK:STDOUT:   %impl.elem0.loc11_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc11_34.1: <bound method> = bound_method %int_4, %impl.elem0.loc11_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.121]
 // CHECK:STDOUT:   %specific_fn.loc11: <specific function> = specific_function %impl.elem0.loc11_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc11_34.2: <bound method> = bound_method %int_4, %specific_fn.loc11 [concrete = constants.%bound_method.1da]
+// CHECK:STDOUT:   %bound_method.loc11_34.2: <bound method> = bound_method %int_4, %specific_fn.loc11 [concrete = constants.%bound_method.564]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc11: init %i32 = call %bound_method.loc11_34.2(%int_4) [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc11_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc11 [concrete = constants.%int_4.940]
 // CHECK:STDOUT:   %.loc11_34.2: %i32 = converted %int_4, %.loc11_34.1 [concrete = constants.%int_4.940]
@@ -1347,34 +1347,34 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc11_24.3: init %C.89d = class_init (), %.loc11_24.2 [concrete = constants.%C.val.1dd]
 // CHECK:STDOUT:   %.loc11_24.4: ref %C.89d = temporary %.loc11_24.2, %.loc11_24.3
 // CHECK:STDOUT:   %.loc11_26.1: ref %C.89d = converted %.loc11_24.1, %.loc11_24.4
-// CHECK:STDOUT:   %impl.elem0.loc11_35: %.26e = impl_witness_access constants.%ImplicitAs.impl_witness.16c, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.009]
+// CHECK:STDOUT:   %impl.elem0.loc11_35: %.67f = impl_witness_access constants.%ImplicitAs.impl_witness.c85, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.db5]
 // CHECK:STDOUT:   %bound_method.loc11_35: <bound method> = bound_method %.loc11_26.1, %impl.elem0.loc11_35
 // CHECK:STDOUT:   %.loc11_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc11_26.2: %C.89d = bind_value %.loc11_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc11: init %D = call %bound_method.loc11_35(%.loc11_26.2) to %.loc11_35.1
 // CHECK:STDOUT:   %.loc11_35.2: init %D = converted %.loc11_26.1, %C.as.ImplicitAs.impl.Convert.call.loc11
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.1: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.a34
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.11: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.a34, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1d2]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.1: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.d1c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.11: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.d1c, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.12e]
 // CHECK:STDOUT:   %bound_method.loc11_24.1: <bound method> = bound_method %.loc11_24.4, %C.as.Destroy.impl.Op.specific_fn.11
 // CHECK:STDOUT:   %addr.loc11_24.1: %ptr.c28b = addr_of %.loc11_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc11_24.1: init %empty_tuple.type = call %bound_method.loc11_24.1(%addr.loc11_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.2: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.135
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.12: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.111]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.2: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.ee6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.12: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.c71]
 // CHECK:STDOUT:   %bound_method.loc10_24.2: <bound method> = bound_method %.loc10_24.4, %C.as.Destroy.impl.Op.specific_fn.12
 // CHECK:STDOUT:   %addr.loc10_24.2: %ptr.2b1 = addr_of %.loc10_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc10_24.2: init %empty_tuple.type = call %bound_method.loc10_24.2(%addr.loc10_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.3: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.13: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.3: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.13: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.3: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.13
 // CHECK:STDOUT:   %addr.loc9_24.3: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.3: init %empty_tuple.type = call %bound_method.loc9_24.3(%addr.loc9_24.3)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.4: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.14: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.4: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.14: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.4: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.14
 // CHECK:STDOUT:   %addr.loc8_24.4: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.4: init %empty_tuple.type = call %bound_method.loc8_24.4(%addr.loc8_24.4)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.5: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.15: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.5: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.15: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.5: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.15
 // CHECK:STDOUT:   %addr.loc7_24.5: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.5: init %empty_tuple.type = call %bound_method.loc7_24.5(%addr.loc7_24.5)
@@ -1389,10 +1389,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc12: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc12: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5.64b]
-// CHECK:STDOUT:   %impl.elem0.loc12_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc12_34.1: <bound method> = bound_method %int_5, %impl.elem0.loc12_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.4e6]
+// CHECK:STDOUT:   %impl.elem0.loc12_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc12_34.1: <bound method> = bound_method %int_5, %impl.elem0.loc12_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.6c8]
 // CHECK:STDOUT:   %specific_fn.loc12: <specific function> = specific_function %impl.elem0.loc12_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc12_34.2: <bound method> = bound_method %int_5, %specific_fn.loc12 [concrete = constants.%bound_method.a25]
+// CHECK:STDOUT:   %bound_method.loc12_34.2: <bound method> = bound_method %int_5, %specific_fn.loc12 [concrete = constants.%bound_method.918]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc12: init %i32 = call %bound_method.loc12_34.2(%int_5) [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc12_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc12 [concrete = constants.%int_5.0f6]
 // CHECK:STDOUT:   %.loc12_34.2: %i32 = converted %int_5, %.loc12_34.1 [concrete = constants.%int_5.0f6]
@@ -1401,39 +1401,39 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc12_24.3: init %C.f0a = class_init (), %.loc12_24.2 [concrete = constants.%C.val.a4a]
 // CHECK:STDOUT:   %.loc12_24.4: ref %C.f0a = temporary %.loc12_24.2, %.loc12_24.3
 // CHECK:STDOUT:   %.loc12_26.1: ref %C.f0a = converted %.loc12_24.1, %.loc12_24.4
-// CHECK:STDOUT:   %impl.elem0.loc12_35: %.eaf = impl_witness_access constants.%ImplicitAs.impl_witness.aa9, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.b66]
+// CHECK:STDOUT:   %impl.elem0.loc12_35: %.745 = impl_witness_access constants.%ImplicitAs.impl_witness.469, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.a63]
 // CHECK:STDOUT:   %bound_method.loc12_35: <bound method> = bound_method %.loc12_26.1, %impl.elem0.loc12_35
 // CHECK:STDOUT:   %.loc12_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc12_26.2: %C.f0a = bind_value %.loc12_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc12: init %D = call %bound_method.loc12_35(%.loc12_26.2) to %.loc12_35.1
 // CHECK:STDOUT:   %.loc12_35.2: init %D = converted %.loc12_26.1, %C.as.ImplicitAs.impl.Convert.call.loc12
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.1: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.dab
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.16: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dab, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.89c]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.1: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.828
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.16: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.828, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.295]
 // CHECK:STDOUT:   %bound_method.loc12_24.1: <bound method> = bound_method %.loc12_24.4, %C.as.Destroy.impl.Op.specific_fn.16
 // CHECK:STDOUT:   %addr.loc12_24.1: %ptr.24c = addr_of %.loc12_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc12_24.1: init %empty_tuple.type = call %bound_method.loc12_24.1(%addr.loc12_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.2: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.a34
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.17: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.a34, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1d2]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.2: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.d1c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.17: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.d1c, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.12e]
 // CHECK:STDOUT:   %bound_method.loc11_24.2: <bound method> = bound_method %.loc11_24.4, %C.as.Destroy.impl.Op.specific_fn.17
 // CHECK:STDOUT:   %addr.loc11_24.2: %ptr.c28b = addr_of %.loc11_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc11_24.2: init %empty_tuple.type = call %bound_method.loc11_24.2(%addr.loc11_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.3: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.135
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.18: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.111]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.3: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.ee6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.18: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.c71]
 // CHECK:STDOUT:   %bound_method.loc10_24.3: <bound method> = bound_method %.loc10_24.4, %C.as.Destroy.impl.Op.specific_fn.18
 // CHECK:STDOUT:   %addr.loc10_24.3: %ptr.2b1 = addr_of %.loc10_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc10_24.3: init %empty_tuple.type = call %bound_method.loc10_24.3(%addr.loc10_24.3)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.4: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.19: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.4: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.19: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.4: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.19
 // CHECK:STDOUT:   %addr.loc9_24.4: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.4: init %empty_tuple.type = call %bound_method.loc9_24.4(%addr.loc9_24.4)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.5: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.20: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.5: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.20: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.5: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.20
 // CHECK:STDOUT:   %addr.loc8_24.5: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.5: init %empty_tuple.type = call %bound_method.loc8_24.5(%addr.loc8_24.5)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.6: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.21: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.6: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.21: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.6: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.21
 // CHECK:STDOUT:   %addr.loc7_24.6: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.6: init %empty_tuple.type = call %bound_method.loc7_24.6(%addr.loc7_24.6)
@@ -1448,10 +1448,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc13: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc13: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_6: Core.IntLiteral = int_value 6 [concrete = constants.%int_6.462]
-// CHECK:STDOUT:   %impl.elem0.loc13_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_34.1: <bound method> = bound_method %int_6, %impl.elem0.loc13_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ce9]
+// CHECK:STDOUT:   %impl.elem0.loc13_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_34.1: <bound method> = bound_method %int_6, %impl.elem0.loc13_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7a5]
 // CHECK:STDOUT:   %specific_fn.loc13: <specific function> = specific_function %impl.elem0.loc13_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_34.2: <bound method> = bound_method %int_6, %specific_fn.loc13 [concrete = constants.%bound_method.efa]
+// CHECK:STDOUT:   %bound_method.loc13_34.2: <bound method> = bound_method %int_6, %specific_fn.loc13 [concrete = constants.%bound_method.351]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13: init %i32 = call %bound_method.loc13_34.2(%int_6) [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %.loc13_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13 [concrete = constants.%int_6.e56]
 // CHECK:STDOUT:   %.loc13_34.2: %i32 = converted %int_6, %.loc13_34.1 [concrete = constants.%int_6.e56]
@@ -1460,44 +1460,44 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc13_24.3: init %C.c60 = class_init (), %.loc13_24.2 [concrete = constants.%C.val.a4b]
 // CHECK:STDOUT:   %.loc13_24.4: ref %C.c60 = temporary %.loc13_24.2, %.loc13_24.3
 // CHECK:STDOUT:   %.loc13_26.1: ref %C.c60 = converted %.loc13_24.1, %.loc13_24.4
-// CHECK:STDOUT:   %impl.elem0.loc13_35: %.874 = impl_witness_access constants.%ImplicitAs.impl_witness.e4d, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.f59]
+// CHECK:STDOUT:   %impl.elem0.loc13_35: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.68e, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.e2f]
 // CHECK:STDOUT:   %bound_method.loc13_35: <bound method> = bound_method %.loc13_26.1, %impl.elem0.loc13_35
 // CHECK:STDOUT:   %.loc13_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc13_26.2: %C.c60 = bind_value %.loc13_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc13: init %D = call %bound_method.loc13_35(%.loc13_26.2) to %.loc13_35.1
 // CHECK:STDOUT:   %.loc13_35.2: init %D = converted %.loc13_26.1, %C.as.ImplicitAs.impl.Convert.call.loc13
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc13_24.1: <bound method> = bound_method %.loc13_24.4, constants.%C.as.Destroy.impl.Op.326
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.22: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.326, @C.as.Destroy.impl.Op(constants.%int_6.e56) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.e3f]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc13_24.1: <bound method> = bound_method %.loc13_24.4, constants.%C.as.Destroy.impl.Op.c43
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.22: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c43, @C.as.Destroy.impl.Op(constants.%int_6.e56) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.210]
 // CHECK:STDOUT:   %bound_method.loc13_24.1: <bound method> = bound_method %.loc13_24.4, %C.as.Destroy.impl.Op.specific_fn.22
 // CHECK:STDOUT:   %addr.loc13_24.1: %ptr.b5e = addr_of %.loc13_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc13_24.1: init %empty_tuple.type = call %bound_method.loc13_24.1(%addr.loc13_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.2: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.dab
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.23: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dab, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.89c]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.2: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.828
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.23: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.828, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.295]
 // CHECK:STDOUT:   %bound_method.loc12_24.2: <bound method> = bound_method %.loc12_24.4, %C.as.Destroy.impl.Op.specific_fn.23
 // CHECK:STDOUT:   %addr.loc12_24.2: %ptr.24c = addr_of %.loc12_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc12_24.2: init %empty_tuple.type = call %bound_method.loc12_24.2(%addr.loc12_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.3: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.a34
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.24: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.a34, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1d2]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.3: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.d1c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.24: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.d1c, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.12e]
 // CHECK:STDOUT:   %bound_method.loc11_24.3: <bound method> = bound_method %.loc11_24.4, %C.as.Destroy.impl.Op.specific_fn.24
 // CHECK:STDOUT:   %addr.loc11_24.3: %ptr.c28b = addr_of %.loc11_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc11_24.3: init %empty_tuple.type = call %bound_method.loc11_24.3(%addr.loc11_24.3)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.4: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.135
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.25: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.111]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.4: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.ee6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.25: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.c71]
 // CHECK:STDOUT:   %bound_method.loc10_24.4: <bound method> = bound_method %.loc10_24.4, %C.as.Destroy.impl.Op.specific_fn.25
 // CHECK:STDOUT:   %addr.loc10_24.4: %ptr.2b1 = addr_of %.loc10_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc10_24.4: init %empty_tuple.type = call %bound_method.loc10_24.4(%addr.loc10_24.4)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.5: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.26: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.5: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.26: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.5: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.26
 // CHECK:STDOUT:   %addr.loc9_24.5: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.5: init %empty_tuple.type = call %bound_method.loc9_24.5(%addr.loc9_24.5)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.6: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.27: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.6: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.27: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.6: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.27
 // CHECK:STDOUT:   %addr.loc8_24.6: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.6: init %empty_tuple.type = call %bound_method.loc8_24.6(%addr.loc8_24.6)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.7: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.28: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.7: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.28: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.7: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.28
 // CHECK:STDOUT:   %addr.loc7_24.7: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.7: init %empty_tuple.type = call %bound_method.loc7_24.7(%addr.loc7_24.7)
@@ -1512,10 +1512,10 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %P.ref.loc14: <namespace> = name_ref P, imports.%P [concrete = imports.%P]
 // CHECK:STDOUT:   %C.ref.loc14: %C.type = name_ref C, imports.%P.C [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %int_7: Core.IntLiteral = int_value 7 [concrete = constants.%int_7.29f]
-// CHECK:STDOUT:   %impl.elem0.loc14_34: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc14_34.1: <bound method> = bound_method %int_7, %impl.elem0.loc14_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.208]
+// CHECK:STDOUT:   %impl.elem0.loc14_34: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc14_34.1: <bound method> = bound_method %int_7, %impl.elem0.loc14_34 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.fa2]
 // CHECK:STDOUT:   %specific_fn.loc14: <specific function> = specific_function %impl.elem0.loc14_34, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc14_34.2: <bound method> = bound_method %int_7, %specific_fn.loc14 [concrete = constants.%bound_method.3bd]
+// CHECK:STDOUT:   %bound_method.loc14_34.2: <bound method> = bound_method %int_7, %specific_fn.loc14 [concrete = constants.%bound_method.c8a]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14: init %i32 = call %bound_method.loc14_34.2(%int_7) [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:   %.loc14_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14 [concrete = constants.%int_7.0b1]
 // CHECK:STDOUT:   %.loc14_34.2: %i32 = converted %int_7, %.loc14_34.1 [concrete = constants.%int_7.0b1]
@@ -1524,49 +1524,49 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %.loc14_24.3: init %C.304 = class_init (), %.loc14_24.2 [concrete = constants.%C.val.f9f]
 // CHECK:STDOUT:   %.loc14_24.4: ref %C.304 = temporary %.loc14_24.2, %.loc14_24.3
 // CHECK:STDOUT:   %.loc14_26.1: ref %C.304 = converted %.loc14_24.1, %.loc14_24.4
-// CHECK:STDOUT:   %impl.elem0.loc14_35: %.79b = impl_witness_access constants.%ImplicitAs.impl_witness.0ca, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.6c1]
+// CHECK:STDOUT:   %impl.elem0.loc14_35: %.bfa = impl_witness_access constants.%ImplicitAs.impl_witness.7f9, element0 [concrete = constants.%C.as.ImplicitAs.impl.Convert.5ea]
 // CHECK:STDOUT:   %bound_method.loc14_35: <bound method> = bound_method %.loc14_26.1, %impl.elem0.loc14_35
 // CHECK:STDOUT:   %.loc14_35.1: ref %D = temporary_storage
 // CHECK:STDOUT:   %.loc14_26.2: %C.304 = bind_value %.loc14_26.1
 // CHECK:STDOUT:   %C.as.ImplicitAs.impl.Convert.call.loc14: init %D = call %bound_method.loc14_35(%.loc14_26.2) to %.loc14_35.1
 // CHECK:STDOUT:   %.loc14_35.2: init %D = converted %.loc14_26.1, %C.as.ImplicitAs.impl.Convert.call.loc14
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc14_24.1: <bound method> = bound_method %.loc14_24.4, constants.%C.as.Destroy.impl.Op.da6
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.29: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.da6, @C.as.Destroy.impl.Op(constants.%int_7.0b1) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.0fc]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc14_24.1: <bound method> = bound_method %.loc14_24.4, constants.%C.as.Destroy.impl.Op.518
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.29: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.518, @C.as.Destroy.impl.Op(constants.%int_7.0b1) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1ed]
 // CHECK:STDOUT:   %bound_method.loc14_24.1: <bound method> = bound_method %.loc14_24.4, %C.as.Destroy.impl.Op.specific_fn.29
 // CHECK:STDOUT:   %addr.loc14_24.1: %ptr.dc3 = addr_of %.loc14_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc14_24.1: init %empty_tuple.type = call %bound_method.loc14_24.1(%addr.loc14_24.1)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc13_24.2: <bound method> = bound_method %.loc13_24.4, constants.%C.as.Destroy.impl.Op.326
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.30: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.326, @C.as.Destroy.impl.Op(constants.%int_6.e56) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.e3f]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc13_24.2: <bound method> = bound_method %.loc13_24.4, constants.%C.as.Destroy.impl.Op.c43
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.30: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c43, @C.as.Destroy.impl.Op(constants.%int_6.e56) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.210]
 // CHECK:STDOUT:   %bound_method.loc13_24.2: <bound method> = bound_method %.loc13_24.4, %C.as.Destroy.impl.Op.specific_fn.30
 // CHECK:STDOUT:   %addr.loc13_24.2: %ptr.b5e = addr_of %.loc13_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc13_24.2: init %empty_tuple.type = call %bound_method.loc13_24.2(%addr.loc13_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.3: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.dab
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.31: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dab, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.89c]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.3: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.828
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.31: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.828, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.295]
 // CHECK:STDOUT:   %bound_method.loc12_24.3: <bound method> = bound_method %.loc12_24.4, %C.as.Destroy.impl.Op.specific_fn.31
 // CHECK:STDOUT:   %addr.loc12_24.3: %ptr.24c = addr_of %.loc12_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc12_24.3: init %empty_tuple.type = call %bound_method.loc12_24.3(%addr.loc12_24.3)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.4: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.a34
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.32: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.a34, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1d2]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.4: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.d1c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.32: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.d1c, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.12e]
 // CHECK:STDOUT:   %bound_method.loc11_24.4: <bound method> = bound_method %.loc11_24.4, %C.as.Destroy.impl.Op.specific_fn.32
 // CHECK:STDOUT:   %addr.loc11_24.4: %ptr.c28b = addr_of %.loc11_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc11_24.4: init %empty_tuple.type = call %bound_method.loc11_24.4(%addr.loc11_24.4)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.5: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.135
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.33: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.111]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.5: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.ee6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.33: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.c71]
 // CHECK:STDOUT:   %bound_method.loc10_24.5: <bound method> = bound_method %.loc10_24.4, %C.as.Destroy.impl.Op.specific_fn.33
 // CHECK:STDOUT:   %addr.loc10_24.5: %ptr.2b1 = addr_of %.loc10_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc10_24.5: init %empty_tuple.type = call %bound_method.loc10_24.5(%addr.loc10_24.5)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.6: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.34: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.6: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.34: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.6: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.34
 // CHECK:STDOUT:   %addr.loc9_24.6: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.6: init %empty_tuple.type = call %bound_method.loc9_24.6(%addr.loc9_24.6)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.7: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.35: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.7: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.35: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.7: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.35
 // CHECK:STDOUT:   %addr.loc8_24.7: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.7: init %empty_tuple.type = call %bound_method.loc8_24.7(%addr.loc8_24.7)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.8: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.36: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.8: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.36: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.8: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.36
 // CHECK:STDOUT:   %addr.loc7_24.8: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.8: init %empty_tuple.type = call %bound_method.loc7_24.8(%addr.loc7_24.8)
@@ -1577,43 +1577,43 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Make.ref: %Make.type = name_ref Make, imports.%P.Make [concrete = constants.%Make]
 // CHECK:STDOUT:   %.loc6_15: ref %D = splice_block %return {}
 // CHECK:STDOUT:   %Make.call: init %D = call %Make.ref() to %.loc6_15
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc14_24.2: <bound method> = bound_method %.loc14_24.4, constants.%C.as.Destroy.impl.Op.da6
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.37: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.da6, @C.as.Destroy.impl.Op(constants.%int_7.0b1) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.0fc]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc14_24.2: <bound method> = bound_method %.loc14_24.4, constants.%C.as.Destroy.impl.Op.518
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.37: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.518, @C.as.Destroy.impl.Op(constants.%int_7.0b1) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1ed]
 // CHECK:STDOUT:   %bound_method.loc14_24.2: <bound method> = bound_method %.loc14_24.4, %C.as.Destroy.impl.Op.specific_fn.37
 // CHECK:STDOUT:   %addr.loc14_24.2: %ptr.dc3 = addr_of %.loc14_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc14_24.2: init %empty_tuple.type = call %bound_method.loc14_24.2(%addr.loc14_24.2)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc13_24.3: <bound method> = bound_method %.loc13_24.4, constants.%C.as.Destroy.impl.Op.326
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.38: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.326, @C.as.Destroy.impl.Op(constants.%int_6.e56) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.e3f]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc13_24.3: <bound method> = bound_method %.loc13_24.4, constants.%C.as.Destroy.impl.Op.c43
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.38: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c43, @C.as.Destroy.impl.Op(constants.%int_6.e56) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.210]
 // CHECK:STDOUT:   %bound_method.loc13_24.3: <bound method> = bound_method %.loc13_24.4, %C.as.Destroy.impl.Op.specific_fn.38
 // CHECK:STDOUT:   %addr.loc13_24.3: %ptr.b5e = addr_of %.loc13_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc13_24.3: init %empty_tuple.type = call %bound_method.loc13_24.3(%addr.loc13_24.3)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.4: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.dab
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.39: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dab, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.89c]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc12_24.4: <bound method> = bound_method %.loc12_24.4, constants.%C.as.Destroy.impl.Op.828
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.39: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.828, @C.as.Destroy.impl.Op(constants.%int_5.0f6) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.295]
 // CHECK:STDOUT:   %bound_method.loc12_24.4: <bound method> = bound_method %.loc12_24.4, %C.as.Destroy.impl.Op.specific_fn.39
 // CHECK:STDOUT:   %addr.loc12_24.4: %ptr.24c = addr_of %.loc12_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc12_24.4: init %empty_tuple.type = call %bound_method.loc12_24.4(%addr.loc12_24.4)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.5: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.a34
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.40: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.a34, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.1d2]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc11_24.5: <bound method> = bound_method %.loc11_24.4, constants.%C.as.Destroy.impl.Op.d1c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.40: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.d1c, @C.as.Destroy.impl.Op(constants.%int_4.940) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.12e]
 // CHECK:STDOUT:   %bound_method.loc11_24.5: <bound method> = bound_method %.loc11_24.4, %C.as.Destroy.impl.Op.specific_fn.40
 // CHECK:STDOUT:   %addr.loc11_24.5: %ptr.c28b = addr_of %.loc11_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc11_24.5: init %empty_tuple.type = call %bound_method.loc11_24.5(%addr.loc11_24.5)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.6: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.135
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.41: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.135, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.111]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc10_24.6: <bound method> = bound_method %.loc10_24.4, constants.%C.as.Destroy.impl.Op.ee6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.41: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.ee6, @C.as.Destroy.impl.Op(constants.%int_3.822) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.c71]
 // CHECK:STDOUT:   %bound_method.loc10_24.6: <bound method> = bound_method %.loc10_24.4, %C.as.Destroy.impl.Op.specific_fn.41
 // CHECK:STDOUT:   %addr.loc10_24.6: %ptr.2b1 = addr_of %.loc10_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc10_24.6: init %empty_tuple.type = call %bound_method.loc10_24.6(%addr.loc10_24.6)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.7: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.283
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.42: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.283, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.228]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc9_24.7: <bound method> = bound_method %.loc9_24.4, constants.%C.as.Destroy.impl.Op.f2d
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.42: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.f2d, @C.as.Destroy.impl.Op(constants.%int_2.ef8) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.774]
 // CHECK:STDOUT:   %bound_method.loc9_24.7: <bound method> = bound_method %.loc9_24.4, %C.as.Destroy.impl.Op.specific_fn.42
 // CHECK:STDOUT:   %addr.loc9_24.7: %ptr.3bd = addr_of %.loc9_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc9_24.7: init %empty_tuple.type = call %bound_method.loc9_24.7(%addr.loc9_24.7)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.8: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.c0c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.43: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.c0c, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.252]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc8_24.8: <bound method> = bound_method %.loc8_24.4, constants.%C.as.Destroy.impl.Op.3c7
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.43: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.3c7, @C.as.Destroy.impl.Op(constants.%int_1.5d2) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.ac5]
 // CHECK:STDOUT:   %bound_method.loc8_24.8: <bound method> = bound_method %.loc8_24.4, %C.as.Destroy.impl.Op.specific_fn.43
 // CHECK:STDOUT:   %addr.loc8_24.8: %ptr.625 = addr_of %.loc8_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc8_24.8: init %empty_tuple.type = call %bound_method.loc8_24.8(%addr.loc8_24.8)
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.9: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.e1e
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.44: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.e1e, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.115]
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.bound.loc7_24.9: <bound method> = bound_method %.loc7_24.4, constants.%C.as.Destroy.impl.Op.dbb
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.specific_fn.44: <specific function> = specific_function constants.%C.as.Destroy.impl.Op.dbb, @C.as.Destroy.impl.Op(constants.%int_0.6a9) [concrete = constants.%C.as.Destroy.impl.Op.specific_fn.d03]
 // CHECK:STDOUT:   %bound_method.loc7_24.9: <bound method> = bound_method %.loc7_24.4, %C.as.Destroy.impl.Op.specific_fn.44
 // CHECK:STDOUT:   %addr.loc7_24.9: %ptr.697 = addr_of %.loc7_24.4
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.call.loc7_24.9: init %empty_tuple.type = call %bound_method.loc7_24.9(%addr.loc7_24.9)
@@ -1662,7 +1662,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%N.51e) {
 // CHECK:STDOUT:   %N => constants.%N.51e
 // CHECK:STDOUT:   %C => constants.%C.17a
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1b1
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.0d4
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%N.51e) {
@@ -1717,11 +1717,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_0.6a9) {
 // CHECK:STDOUT:   %N => constants.%int_0.6a9
 // CHECK:STDOUT:   %C => constants.%C.b00
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c5e
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c93
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.369
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.e1e
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.615
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.dbb
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_0.6a9) {
@@ -1734,11 +1734,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_1.5d2) {
 // CHECK:STDOUT:   %N => constants.%int_1.5d2
 // CHECK:STDOUT:   %C => constants.%C.674
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.540
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.b8a
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.76c
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.c0c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.b82
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.3c7
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_1.5d2) {
@@ -1751,11 +1751,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_2.ef8) {
 // CHECK:STDOUT:   %N => constants.%int_2.ef8
 // CHECK:STDOUT:   %C => constants.%C.681
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.c38
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.979
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.aaf
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.283
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.681
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.f2d
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_2.ef8) {
@@ -1768,11 +1768,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_3.822) {
 // CHECK:STDOUT:   %N => constants.%int_3.822
 // CHECK:STDOUT:   %C => constants.%C.7ac
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.7b8
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.dff
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.988
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.135
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.f7b
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.ee6
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_3.822) {
@@ -1785,11 +1785,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_4.940) {
 // CHECK:STDOUT:   %N => constants.%int_4.940
 // CHECK:STDOUT:   %C => constants.%C.89d
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.ee9
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1d2
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.5db
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.a34
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.f38
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.d1c
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_4.940) {
@@ -1802,11 +1802,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_5.0f6) {
 // CHECK:STDOUT:   %N => constants.%int_5.0f6
 // CHECK:STDOUT:   %C => constants.%C.f0a
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.1d7
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.adc
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.1a4
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.dab
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.743
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.828
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_5.0f6) {
@@ -1819,11 +1819,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_6.e56) {
 // CHECK:STDOUT:   %N => constants.%int_6.e56
 // CHECK:STDOUT:   %C => constants.%C.c60
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.949
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.10e
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.b4a
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.326
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.06a
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.c43
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_6.e56) {
@@ -1836,11 +1836,11 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT: specific @C.as.Destroy.impl(constants.%int_7.0b1) {
 // CHECK:STDOUT:   %N => constants.%int_7.0b1
 // CHECK:STDOUT:   %C => constants.%C.304
-// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.786
+// CHECK:STDOUT:   %Destroy.impl_witness => constants.%Destroy.impl_witness.65d
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.8c9
-// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.da6
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op.type => constants.%C.as.Destroy.impl.Op.type.77c
+// CHECK:STDOUT:   %C.as.Destroy.impl.Op => constants.%C.as.Destroy.impl.Op.518
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @C.as.Destroy.impl.Op(constants.%int_7.0b1) {
diff --git a/toolchain/check/testdata/return/returned_var.carbon b/toolchain/check/testdata/return/returned_var.carbon
index 70265c87990b..9ed4306015fb 100644
--- a/toolchain/check/testdata/return/returned_var.carbon
+++ b/toolchain/check/testdata/return/returned_var.carbon
@@ -39,7 +39,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %C.elem: type = unbound_element_type %C, %i32 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %pattern_type.f6d: type = pattern_type auto [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness.edd: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
+// CHECK:STDOUT:   %Destroy.impl_witness.9d0: <witness> = impl_witness @C.%Destroy.impl_witness_table [concrete]
 // CHECK:STDOUT:   %ptr.019: type = ptr_type %C [concrete]
 // CHECK:STDOUT:   %pattern_type.44a: type = pattern_type %ptr.019 [concrete]
 // CHECK:STDOUT:   %C.as.Destroy.impl.Op.type: type = fn_type @C.as.Destroy.impl.Op [concrete]
@@ -54,35 +54,35 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %C.val: %C = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -96,8 +96,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -154,7 +154,7 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
 // CHECK:STDOUT:   impl_decl @C.as.Destroy.impl [concrete] {} {}
 // CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (@C.as.Destroy.impl.%C.as.Destroy.impl.Op.decl), @C.as.Destroy.impl [concrete]
-// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.edd]
+// CHECK:STDOUT:   %Destroy.impl_witness: <witness> = impl_witness %Destroy.impl_witness_table [concrete = constants.%Destroy.impl_witness.9d0]
 // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%struct_type.a.b.501 [concrete = constants.%complete_type.705]
 // CHECK:STDOUT:   complete_type_witness = %complete_type
 // CHECK:STDOUT:
@@ -175,18 +175,18 @@ fn G() -> i32 {
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc21_43.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
-// CHECK:STDOUT:   %impl.elem0.loc21_43.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_43.1: <bound method> = bound_method %int_1, %impl.elem0.loc21_43.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc21_43.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_43.1: <bound method> = bound_method %int_1, %impl.elem0.loc21_43.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc21_43.1: <specific function> = specific_function %impl.elem0.loc21_43.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_43.2: <bound method> = bound_method %int_1, %specific_fn.loc21_43.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc21_43.2: <bound method> = bound_method %int_1, %specific_fn.loc21_43.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_43.1: init %i32 = call %bound_method.loc21_43.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc21_43.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_43.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc21_43.3: ref %i32 = class_element_access %return, element0
 // CHECK:STDOUT:   %.loc21_43.4: init %i32 = initialize_from %.loc21_43.2 to %.loc21_43.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc21_43.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc21_43.3: <bound method> = bound_method %int_2, %impl.elem0.loc21_43.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc21_43.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc21_43.3: <bound method> = bound_method %int_2, %impl.elem0.loc21_43.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc21_43.2: <specific function> = specific_function %impl.elem0.loc21_43.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc21_43.4: <bound method> = bound_method %int_2, %specific_fn.loc21_43.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc21_43.4: <bound method> = bound_method %int_2, %specific_fn.loc21_43.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_43.2: init %i32 = call %bound_method.loc21_43.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc21_43.5: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc21_43.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc21_43.6: ref %i32 = class_element_access %return, element1
@@ -207,10 +207,10 @@ fn G() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %result.var: ref %i32 = var %result.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc26_12.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc26_12.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc26_12.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc26_12.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc26_12.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc26_12: init %i32 = converted %int_0, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %result.var, %.loc26_12
@@ -220,8 +220,8 @@ fn G() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %result: ref %i32 = bind_name result, %result.var
 // CHECK:STDOUT:   %.loc26_16: %i32 = bind_value %result
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %result.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound: <bound method> = bound_method %result.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc26_12.3: <bound method> = bound_method %result.var, %Int.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.235 = addr_of %result.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc26_12.3(%addr)
diff --git a/toolchain/check/testdata/return/returned_var_scope.carbon b/toolchain/check/testdata/return/returned_var_scope.carbon
index 460fadceb64b..ff524630642b 100644
--- a/toolchain/check/testdata/return/returned_var_scope.carbon
+++ b/toolchain/check/testdata/return/returned_var_scope.carbon
@@ -46,29 +46,29 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.b6e: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.698: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.b8f: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.715: %Int.as.Destroy.impl.Op.type.b8f = struct_value () [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.type.11b: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.054: %Int.as.Destroy.impl.Op.type.11b = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(%int_32) [concrete]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
@@ -87,8 +87,8 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.Bool: %Bool.type = import_ref Core//prelude/parts/bool, Bool, loaded [concrete = constants.%Bool]
 // CHECK:STDOUT: }
@@ -141,10 +141,10 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_0.loc17: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc17: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_14.1: <bound method> = bound_method %int_0.loc17, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc17: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_14.1: <bound method> = bound_method %int_0.loc17, %impl.elem0.loc17 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc17: <specific function> = specific_function %impl.elem0.loc17, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_14.2: <bound method> = bound_method %int_0.loc17, %specific_fn.loc17 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc17_14.2: <bound method> = bound_method %int_0.loc17, %specific_fn.loc17 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17: init %i32 = call %bound_method.loc17_14.2(%int_0.loc17) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc17_14: init %i32 = converted %int_0.loc17, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %v.var, %.loc17_14
@@ -166,10 +166,10 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %w.var: ref %i32 = var %w.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc20: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc20_14.1: <bound method> = bound_method %int_1, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc20: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc20_14.1: <bound method> = bound_method %int_1, %impl.elem0.loc20 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc20: <specific function> = specific_function %impl.elem0.loc20, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc20_14.2: <bound method> = bound_method %int_1, %specific_fn.loc20 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc20_14.2: <bound method> = bound_method %int_1, %specific_fn.loc20 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20: init %i32 = call %bound_method.loc20_14.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc20_14: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %w.var, %.loc20_14
@@ -182,20 +182,20 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.else.loc19:
 // CHECK:STDOUT:   %int_0.loc22: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc22: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc22_11.1: <bound method> = bound_method %int_0.loc22, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc22: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc22_11.1: <bound method> = bound_method %int_0.loc22, %impl.elem0.loc22 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc22: <specific function> = specific_function %impl.elem0.loc22, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc22_11.2: <bound method> = bound_method %int_0.loc22, %specific_fn.loc22 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc22_11.2: <bound method> = bound_method %int_0.loc22, %specific_fn.loc22 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22: init %i32 = call %bound_method.loc22_11.2(%int_0.loc22) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc22_11.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc22 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc22_11.2: %i32 = converted %int_0.loc22, %.loc22_11.1 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc20_14.3: <bound method> = bound_method %w.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc20: %ptr.235 = addr_of %w.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc20: init %empty_tuple.type = call %bound_method.loc20_14.3(%addr.loc20)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc17: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc17_14.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc17: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc17: init %empty_tuple.type = call %bound_method.loc17_14.3(%addr.loc17)
@@ -214,10 +214,10 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v.var: ref %i32 = var %v.var_patt
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0.loc27: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc27_14.1: <bound method> = bound_method %int_0, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.d04]
+// CHECK:STDOUT:   %impl.elem0.loc27: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc27_14.1: <bound method> = bound_method %int_0, %impl.elem0.loc27 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.7cb]
 // CHECK:STDOUT:   %specific_fn.loc27: <specific function> = specific_function %impl.elem0.loc27, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc27_14.2: <bound method> = bound_method %int_0, %specific_fn.loc27 [concrete = constants.%bound_method.b6e]
+// CHECK:STDOUT:   %bound_method.loc27_14.2: <bound method> = bound_method %int_0, %specific_fn.loc27 [concrete = constants.%bound_method.698]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27: init %i32 = call %bound_method.loc27_14.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc27_14: init %i32 = converted %int_0, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc27 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   assign %v.var, %.loc27_14
@@ -227,8 +227,8 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %i32 = bind_name v, %v.var
 // CHECK:STDOUT:   %.loc27_18: %i32 = bind_value %v
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc27_14.1: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc27_14.1: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc27_14.3: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc27_14.1: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc27_14.1: init %empty_tuple.type = call %bound_method.loc27_14.3(%addr.loc27_14.1)
@@ -241,10 +241,10 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %w.var: ref %i32 = var %w.var_patt
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
-// CHECK:STDOUT:   %impl.elem0.loc30: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc30_12.1: <bound method> = bound_method %int_1, %impl.elem0.loc30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc30: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc30_12.1: <bound method> = bound_method %int_1, %impl.elem0.loc30 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc30: <specific function> = specific_function %impl.elem0.loc30, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc30_12.2: <bound method> = bound_method %int_1, %specific_fn.loc30 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc30_12.2: <bound method> = bound_method %int_1, %specific_fn.loc30 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc30: init %i32 = call %bound_method.loc30_12.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc30_12: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc30 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   assign %w.var, %.loc30_12
@@ -254,13 +254,13 @@ fn EnclosingButAfter(b: bool) -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %w: ref %i32 = bind_name w, %w.var
 // CHECK:STDOUT:   %.loc30_16: %i32 = bind_value %w
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %w.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc30_12.3: <bound method> = bound_method %w.var, %Int.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc30: %ptr.235 = addr_of %w.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc30: init %empty_tuple.type = call %bound_method.loc30_12.3(%addr.loc30)
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc27_14.2: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.715
-// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.715, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.bound.loc27_14.2: <bound method> = bound_method %v.var, constants.%Int.as.Destroy.impl.Op.054
+// CHECK:STDOUT:   %Int.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%Int.as.Destroy.impl.Op.054, @Int.as.Destroy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc27_14.4: <bound method> = bound_method %v.var, %Int.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc27_14.2: %ptr.235 = addr_of %v.var
 // CHECK:STDOUT:   %Int.as.Destroy.impl.Op.call.loc27_14.2: init %empty_tuple.type = call %bound_method.loc27_14.4(%addr.loc27_14.2)
diff --git a/toolchain/check/testdata/return/struct.carbon b/toolchain/check/testdata/return/struct.carbon
index fb50ba7c13cf..526c9c3d5646 100644
--- a/toolchain/check/testdata/return/struct.carbon
+++ b/toolchain/check/testdata/return/struct.carbon
@@ -31,18 +31,18 @@ fn Main() -> {.a: i32} {
 // CHECK:STDOUT:   %struct_type.a.a6c: type = struct_type {.a: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_3.1ba, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.ba9 = struct_value (%int_3.822) [concrete]
@@ -57,8 +57,8 @@ fn Main() -> {.a: i32} {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -83,7 +83,7 @@ fn Main() -> {.a: i32} {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
 // CHECK:STDOUT:   %.loc16_17.1: %struct_type.a.a6c = struct_literal (%int_3)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_17.1: <bound method> = bound_method %int_3, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_17.2: <bound method> = bound_method %int_3, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/return/tuple.carbon b/toolchain/check/testdata/return/tuple.carbon
index e63696ab5d6f..681ae7361e2e 100644
--- a/toolchain/check/testdata/return/tuple.carbon
+++ b/toolchain/check/testdata/return/tuple.carbon
@@ -34,22 +34,22 @@ fn Main() -> (i32, i32) {
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.75f: <bound method> = bound_method %int_15.447, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.984: <bound method> = bound_method %int_15.447, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.064: <bound method> = bound_method %int_15.447, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.035: <bound method> = bound_method %int_15.447, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_15.7f7: %i32 = int_value 15 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.76a: <bound method> = bound_method %int_35.c79, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.231: <bound method> = bound_method %int_35.c79, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.79f: <bound method> = bound_method %int_35.c79, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f86: <bound method> = bound_method %int_35.c79, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_35.c78: %i32 = int_value 35 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.d07 = tuple_value (%int_15.7f7, %int_35.c78) [concrete]
 // CHECK:STDOUT: }
@@ -63,8 +63,8 @@ fn Main() -> (i32, i32) {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -93,18 +93,18 @@ fn Main() -> (i32, i32) {
 // CHECK:STDOUT:   %int_15: Core.IntLiteral = int_value 15 [concrete = constants.%int_15.447]
 // CHECK:STDOUT:   %int_35: Core.IntLiteral = int_value 35 [concrete = constants.%int_35.c79]
 // CHECK:STDOUT:   %.loc17_17.1: %tuple.type.f94 = tuple_literal (%int_15, %int_35)
-// CHECK:STDOUT:   %impl.elem0.loc17_17.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_17.1: <bound method> = bound_method %int_15, %impl.elem0.loc17_17.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.75f]
+// CHECK:STDOUT:   %impl.elem0.loc17_17.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_17.1: <bound method> = bound_method %int_15, %impl.elem0.loc17_17.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.064]
 // CHECK:STDOUT:   %specific_fn.loc17_17.1: <specific function> = specific_function %impl.elem0.loc17_17.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_17.2: <bound method> = bound_method %int_15, %specific_fn.loc17_17.1 [concrete = constants.%bound_method.984]
+// CHECK:STDOUT:   %bound_method.loc17_17.2: <bound method> = bound_method %int_15, %specific_fn.loc17_17.1 [concrete = constants.%bound_method.035]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_17.1: init %i32 = call %bound_method.loc17_17.2(%int_15) [concrete = constants.%int_15.7f7]
 // CHECK:STDOUT:   %.loc17_17.2: init %i32 = converted %int_15, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_17.1 [concrete = constants.%int_15.7f7]
 // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access %return, element0
 // CHECK:STDOUT:   %.loc17_17.3: init %i32 = initialize_from %.loc17_17.2 to %tuple.elem0 [concrete = constants.%int_15.7f7]
-// CHECK:STDOUT:   %impl.elem0.loc17_17.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc17_17.3: <bound method> = bound_method %int_35, %impl.elem0.loc17_17.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.76a]
+// CHECK:STDOUT:   %impl.elem0.loc17_17.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc17_17.3: <bound method> = bound_method %int_35, %impl.elem0.loc17_17.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.79f]
 // CHECK:STDOUT:   %specific_fn.loc17_17.2: <specific function> = specific_function %impl.elem0.loc17_17.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc17_17.4: <bound method> = bound_method %int_35, %specific_fn.loc17_17.2 [concrete = constants.%bound_method.231]
+// CHECK:STDOUT:   %bound_method.loc17_17.4: <bound method> = bound_method %int_35, %specific_fn.loc17_17.2 [concrete = constants.%bound_method.f86]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_17.2: init %i32 = call %bound_method.loc17_17.4(%int_35) [concrete = constants.%int_35.c78]
 // CHECK:STDOUT:   %.loc17_17.4: init %i32 = converted %int_35, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc17_17.2 [concrete = constants.%int_35.c78]
 // CHECK:STDOUT:   %tuple.elem1: ref %i32 = tuple_access %return, element1
diff --git a/toolchain/check/testdata/return/value.carbon b/toolchain/check/testdata/return/value.carbon
index bcaaa5c2cae3..8d44d88d5702 100644
--- a/toolchain/check/testdata/return/value.carbon
+++ b/toolchain/check/testdata/return/value.carbon
@@ -29,18 +29,18 @@ fn Main() -> i32 {
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -54,8 +54,8 @@ fn Main() -> i32 {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -78,7 +78,7 @@ fn Main() -> i32 {
 // CHECK:STDOUT: fn @Main() -> %i32 {
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_11.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_11.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/struct/fail_member_access_type.carbon b/toolchain/check/testdata/struct/fail_member_access_type.carbon
index 2c3bf08f5fb7..3828f61ec514 100644
--- a/toolchain/check/testdata/struct/fail_member_access_type.carbon
+++ b/toolchain/check/testdata/struct/fail_member_access_type.carbon
@@ -32,18 +32,18 @@ var y: i32 = x.b;
 // CHECK:STDOUT:   %struct_type.a.b4b: type = struct_type {.a: Core.FloatLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.126, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.126, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %float.126, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.d15: %f64.d77 = float_value 4 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.5e8 = struct_value (%float.d15) [concrete]
@@ -64,8 +64,8 @@ var y: i32 = x.b;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Float: %Float.type = import_ref Core//prelude/parts/float, Float, loaded [concrete = constants.%Float.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -103,7 +103,7 @@ var y: i32 = x.b;
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 40e-1 [concrete = constants.%float.126]
 // CHECK:STDOUT:   %.loc15_29.1: %struct_type.a.b4b = struct_literal (%float)
-// CHECK:STDOUT:   %impl.elem0: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc15_29.1: <bound method> = bound_method %float, %impl.elem0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_29.2: <bound method> = bound_method %float, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/struct/fail_non_member_access.carbon b/toolchain/check/testdata/struct/fail_non_member_access.carbon
index bf6d0a1b109f..c09ae8cb5c0c 100644
--- a/toolchain/check/testdata/struct/fail_non_member_access.carbon
+++ b/toolchain/check/testdata/struct/fail_non_member_access.carbon
@@ -32,19 +32,19 @@ var y: i32 = x.b;
 // CHECK:STDOUT:   %struct_type.a.a6c: type = struct_type {.a: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.ba9 = struct_value (%int_4.940) [concrete]
@@ -59,8 +59,8 @@ var y: i32 = x.b;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -97,7 +97,7 @@ var y: i32 = x.b;
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
 // CHECK:STDOUT:   %.loc15_27.1: %struct_type.a.a6c = struct_literal (%int_4)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_27.1: <bound method> = bound_method %int_4, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_27.2: <bound method> = bound_method %int_4, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/struct/import.carbon b/toolchain/check/testdata/struct/import.carbon
index 0164ac1acf71..752ebcb99ce9 100644
--- a/toolchain/check/testdata/struct/import.carbon
+++ b/toolchain/check/testdata/struct/import.carbon
@@ -83,8 +83,8 @@ fn F() -> {.x: i32} {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.458: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.e13: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %struct_type.a.b.5ca: type = struct_type {.a: %i32, .b: %i32} [concrete]
@@ -110,19 +110,19 @@ fn F() -> {.x: i32} {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.b9e: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.ea1: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.ea0: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.2ce: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1ad, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e14: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e14 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.b9e = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.2ce) [concrete]
-// CHECK:STDOUT:   %.940: type = fn_type_with_self_type %ImplicitAs.Convert.type.ea0, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.dc5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.c37: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.985: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.449, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.365: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.365 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.ea1 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.985) [concrete]
+// CHECK:STDOUT:   %.f75: type = fn_type_with_self_type %ImplicitAs.Convert.type.ea0, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.855: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.5d4: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.30f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb [concrete]
-// CHECK:STDOUT:   %bound_method.62b: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b18: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c [concrete]
+// CHECK:STDOUT:   %bound_method.862: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.d0d: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.5ca = struct_value (%int_1.47b, %int_2.d0d) [concrete]
 // CHECK:STDOUT:   %C.a8a: type = class_type @C, @C(%struct) [concrete]
@@ -136,8 +136,8 @@ fn F() -> {.x: i32} {
 // CHECK:STDOUT:   %Implicit.b_ref: ref %struct_type.a.d.9db = import_ref Implicit//default, b_ref, loaded [concrete = %b_ref.var]
 // CHECK:STDOUT:   %Implicit.C: %C.type = import_ref Implicit//default, C, loaded [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %Implicit.F: %F.type = import_ref Implicit//default, F, loaded [concrete = constants.%F]
-// CHECK:STDOUT:   %Implicit.import_ref.773: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6) = import_ref Implicit//default, inst150 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.458)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1ad = impl_witness_table (%Implicit.import_ref.773), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Implicit.import_ref.3ad: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1) = import_ref Implicit//default, inst150 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.e13)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.449 = impl_witness_table (%Implicit.import_ref.3ad), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %a_ref.patt: %pattern_type.b54 = binding_pattern a_ref [concrete]
 // CHECK:STDOUT:   %a_ref.var_patt: %pattern_type.b54 = var_pattern %a_ref.patt [concrete]
 // CHECK:STDOUT:   %a_ref.var: ref %struct_type.a = var %a_ref.var_patt [concrete]
@@ -186,17 +186,17 @@ fn F() -> {.x: i32} {
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc7_25.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2)
-// CHECK:STDOUT:     %impl.elem0.loc7_25.1: %.940 = impl_witness_access constants.%ImplicitAs.impl_witness.2ce, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb]
-// CHECK:STDOUT:     %bound_method.loc7_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc7_25.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.dc5]
+// CHECK:STDOUT:     %impl.elem0.loc7_25.1: %.f75 = impl_witness_access constants.%ImplicitAs.impl_witness.985, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c]
+// CHECK:STDOUT:     %bound_method.loc7_25.1: <bound method> = bound_method %int_1, %impl.elem0.loc7_25.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.855]
 // CHECK:STDOUT:     %specific_fn.loc7_25.1: <specific function> = specific_function %impl.elem0.loc7_25.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc7_25.2: <bound method> = bound_method %int_1, %specific_fn.loc7_25.1 [concrete = constants.%bound_method.c37]
+// CHECK:STDOUT:     %bound_method.loc7_25.2: <bound method> = bound_method %int_1, %specific_fn.loc7_25.1 [concrete = constants.%bound_method.5d4]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_25.1: init %i32 = call %bound_method.loc7_25.2(%int_1) [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:     %.loc7_25.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_25.1 [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:     %.loc7_25.3: %i32 = converted %int_1, %.loc7_25.2 [concrete = constants.%int_1.47b]
-// CHECK:STDOUT:     %impl.elem0.loc7_25.2: %.940 = impl_witness_access constants.%ImplicitAs.impl_witness.2ce, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb]
-// CHECK:STDOUT:     %bound_method.loc7_25.3: <bound method> = bound_method %int_2, %impl.elem0.loc7_25.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.30f]
+// CHECK:STDOUT:     %impl.elem0.loc7_25.2: %.f75 = impl_witness_access constants.%ImplicitAs.impl_witness.985, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c]
+// CHECK:STDOUT:     %bound_method.loc7_25.3: <bound method> = bound_method %int_2, %impl.elem0.loc7_25.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b18]
 // CHECK:STDOUT:     %specific_fn.loc7_25.2: <specific function> = specific_function %impl.elem0.loc7_25.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc7_25.4: <bound method> = bound_method %int_2, %specific_fn.loc7_25.2 [concrete = constants.%bound_method.62b]
+// CHECK:STDOUT:     %bound_method.loc7_25.4: <bound method> = bound_method %int_2, %specific_fn.loc7_25.2 [concrete = constants.%bound_method.862]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_25.2: init %i32 = call %bound_method.loc7_25.4(%int_2) [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:     %.loc7_25.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_25.2 [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:     %.loc7_25.5: %i32 = converted %int_2, %.loc7_25.4 [concrete = constants.%int_2.d0d]
diff --git a/toolchain/check/testdata/struct/literal_member_access.carbon b/toolchain/check/testdata/struct/literal_member_access.carbon
index 584757dd577b..f37f57f687cc 100644
--- a/toolchain/check/testdata/struct/literal_member_access.carbon
+++ b/toolchain/check/testdata/struct/literal_member_access.carbon
@@ -38,9 +38,9 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete]
 // CHECK:STDOUT:   %struct_type.a.b.c.4ca: type = struct_type {.a: Core.IntLiteral, .b: %struct_type.x.y.z, .c: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.f60: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.x.y.z) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.1a4: %T.as.Destroy.impl.Op.type.f60 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.1a4, @T.as.Destroy.impl.Op(%struct_type.x.y.z) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.d3f: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.x.y.z) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.960: %T.as.Destroy.impl.Op.type.d3f = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.960, @T.as.Destroy.impl.Op(%struct_type.x.y.z) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -109,8 +109,8 @@ fn F() -> i32 {
 // CHECK:STDOUT:   %.loc18_35.3: %struct_type.a.b.c.4ca = converted %.loc18_35.1, %struct.loc18_35
 // CHECK:STDOUT:   %.loc18_36: %struct_type.x.y.z = struct_access %.loc18_35.3, element1
 // CHECK:STDOUT:   %.loc18_38: %i32 = struct_access %.loc18_36, element1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc18_26.2, constants.%T.as.Destroy.impl.Op.1a4
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.1a4, @T.as.Destroy.impl.Op(constants.%struct_type.x.y.z) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc18_26.2, constants.%T.as.Destroy.impl.Op.960
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.960, @T.as.Destroy.impl.Op(constants.%struct_type.x.y.z) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc18_26.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.6eb = addr_of %.loc18_26.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/struct/member_access.carbon b/toolchain/check/testdata/struct/member_access.carbon
index 62c154596156..2fac5d635e36 100644
--- a/toolchain/check/testdata/struct/member_access.carbon
+++ b/toolchain/check/testdata/struct/member_access.carbon
@@ -35,34 +35,34 @@ var z: i32 = y;
 // CHECK:STDOUT:   %.bc0: ref %f64.d77 = struct_access file.%x.var, element0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.6ec: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.4a8: type = facet_type <@ImplicitAs, @ImplicitAs(%f64.d77)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.726: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%f64.d77) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.857: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.f22, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.baf = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.8d0: %ImplicitAs.type.6ec = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.857) [concrete]
-// CHECK:STDOUT:   %.678: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet.8d0 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03 [concrete]
-// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
-// CHECK:STDOUT:   %bound_method.728: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261 = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.c09: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.cc3, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68: type = fn_type @Core.FloatLiteral.as.ImplicitAs.impl.Convert, @Core.FloatLiteral.as.ImplicitAs.impl(%int_64) [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052: %Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.d68 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.f89: %ImplicitAs.type.4a8 = facet_value Core.FloatLiteral, (%ImplicitAs.impl_witness.c09) [concrete]
+// CHECK:STDOUT:   %.eb2: type = fn_type_with_self_type %ImplicitAs.Convert.type.726, %ImplicitAs.facet.f89 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052 [concrete]
+// CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.FloatLiteral.as.ImplicitAs.impl.Convert.052, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(%int_64) [concrete]
+// CHECK:STDOUT:   %bound_method.4dc: <bound method> = bound_method %float.1f7, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %float.0a8: %f64.d77 = float_value 0 [concrete]
 // CHECK:STDOUT:   %.a00: ref %i32 = struct_access file.%x.var, element1 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.921: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.921 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.d2f = struct_value (%float.0a8, %int_1.5d2) [concrete]
 // CHECK:STDOUT: }
@@ -78,10 +78,10 @@ var z: i32 = y;
 // CHECK:STDOUT:   %Core.Float: %Float.type = import_ref Core//prelude/parts/float, Float, loaded [concrete = constants.%Float.generic]
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.c0c: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.644) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.b45)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.f22 = impl_witness_table (%Core.import_ref.c0c), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.175: @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type (%Core.FloatLiteral.as.ImplicitAs.impl.Convert.type.261) = import_ref Core//prelude/parts/float, loc15_41, loaded [symbolic = @Core.FloatLiteral.as.ImplicitAs.impl.%Core.FloatLiteral.as.ImplicitAs.impl.Convert (constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.4dd)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.cc3 = impl_witness_table (%Core.import_ref.175), @Core.FloatLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -132,18 +132,18 @@ var z: i32 = y;
 // CHECK:STDOUT:   %float: Core.FloatLiteral = float_literal_value 0e-1 [concrete = constants.%float.1f7]
 // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc15_46.1: %struct_type.a.b.0cc = struct_literal (%float, %int_1)
-// CHECK:STDOUT:   %impl.elem0.loc15_46.1: %.678 = impl_witness_access constants.%ImplicitAs.impl_witness.857, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.a03]
+// CHECK:STDOUT:   %impl.elem0.loc15_46.1: %.eb2 = impl_witness_access constants.%ImplicitAs.impl_witness.c09, element0 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.052]
 // CHECK:STDOUT:   %bound_method.loc15_46.1: <bound method> = bound_method %float, %impl.elem0.loc15_46.1 [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc15_46.1: <specific function> = specific_function %impl.elem0.loc15_46.1, @Core.FloatLiteral.as.ImplicitAs.impl.Convert(constants.%int_64) [concrete = constants.%Core.FloatLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_46.2: <bound method> = bound_method %float, %specific_fn.loc15_46.1 [concrete = constants.%bound_method.728]
+// CHECK:STDOUT:   %bound_method.loc15_46.2: <bound method> = bound_method %float, %specific_fn.loc15_46.1 [concrete = constants.%bound_method.4dc]
 // CHECK:STDOUT:   %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call: init %f64.d77 = call %bound_method.loc15_46.2(%float) [concrete = constants.%float.0a8]
 // CHECK:STDOUT:   %.loc15_46.2: init %f64.d77 = converted %float, %Core.FloatLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%float.0a8]
 // CHECK:STDOUT:   %.loc15_46.3: ref %f64.d77 = struct_access file.%x.var, element0 [concrete = constants.%.bc0]
 // CHECK:STDOUT:   %.loc15_46.4: init %f64.d77 = initialize_from %.loc15_46.2 to %.loc15_46.3 [concrete = constants.%float.0a8]
-// CHECK:STDOUT:   %impl.elem0.loc15_46.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc15_46.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_46.3: <bound method> = bound_method %int_1, %impl.elem0.loc15_46.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc15_46.2: <specific function> = specific_function %impl.elem0.loc15_46.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_46.4: <bound method> = bound_method %int_1, %specific_fn.loc15_46.2 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc15_46.4: <bound method> = bound_method %int_1, %specific_fn.loc15_46.2 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call: init %i32 = call %bound_method.loc15_46.4(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_46.5: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_46.6: ref %i32 = struct_access file.%x.var, element1 [concrete = constants.%.a00]
diff --git a/toolchain/check/testdata/struct/nested_struct_in_place.carbon b/toolchain/check/testdata/struct/nested_struct_in_place.carbon
index 91f09eecad61..ea58eaa85a1c 100644
--- a/toolchain/check/testdata/struct/nested_struct_in_place.carbon
+++ b/toolchain/check/testdata/struct/nested_struct_in_place.carbon
@@ -36,10 +36,10 @@ fn G() {
 // CHECK:STDOUT:   %struct_type.a.b.2f9: type = struct_type {.a: %tuple.type.189, .b: %tuple.type.189} [concrete]
 // CHECK:STDOUT:   %pattern_type.3c2: type = pattern_type %struct_type.a.b.2f9 [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.840: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.2f9) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.52b: %T.as.Destroy.impl.Op.type.840 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.845: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.a.b.2f9) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.992: %T.as.Destroy.impl.Op.type.845 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.c95: type = ptr_type %struct_type.a.b.2f9 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.52b, @T.as.Destroy.impl.Op(%struct_type.a.b.2f9) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.992, @T.as.Destroy.impl.Op(%struct_type.a.b.2f9) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -117,8 +117,8 @@ fn G() {
 // CHECK:STDOUT:     %struct_type.a.b: type = struct_type {.a: %tuple.type.189, .b: %tuple.type.189} [concrete = constants.%struct_type.a.b.2f9]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %struct_type.a.b.2f9 = bind_name v, %v.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.52b
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.52b, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.2f9) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.992
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.992, @T.as.Destroy.impl.Op(constants.%struct_type.a.b.2f9) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.c95 = addr_of %v.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/struct/one_entry.carbon b/toolchain/check/testdata/struct/one_entry.carbon
index 5aed7707e220..dbb7b1dae581 100644
--- a/toolchain/check/testdata/struct/one_entry.carbon
+++ b/toolchain/check/testdata/struct/one_entry.carbon
@@ -29,18 +29,18 @@ var y: {.a: i32} = x;
 // CHECK:STDOUT:   %.499: ref %i32 = struct_access file.%x.var, element0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_4.0c1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.ba9 = struct_value (%int_4.940) [concrete]
@@ -55,8 +55,8 @@ var y: {.a: i32} = x;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -94,7 +94,7 @@ var y: {.a: i32} = x;
 // CHECK:STDOUT: !entry:
 // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [concrete = constants.%int_4.0c1]
 // CHECK:STDOUT:   %.loc15_27.1: %struct_type.a.a6c = struct_literal (%int_4)
-// CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc15_27.1: <bound method> = bound_method %int_4, %impl.elem0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc15_27.2: <bound method> = bound_method %int_4, %specific_fn [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/struct/partially_const.carbon b/toolchain/check/testdata/struct/partially_const.carbon
index ac33601e79fe..c86e0adeedbd 100644
--- a/toolchain/check/testdata/struct/partially_const.carbon
+++ b/toolchain/check/testdata/struct/partially_const.carbon
@@ -32,18 +32,18 @@ fn Make(n: i32) -> {.a: i32, .b: i32, .c: i32} {
 // CHECK:STDOUT:   %struct_type.a.b.c.1ee: type = struct_type {.a: Core.IntLiteral, .b: %i32, .c: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
 // CHECK:STDOUT: }
@@ -57,8 +57,8 @@ fn Make(n: i32) -> {.a: i32, .b: i32, .c: i32} {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -97,7 +97,7 @@ fn Make(n: i32) -> {.a: i32, .b: i32, .c: i32} {
 // CHECK:STDOUT:   %n.ref: %i32 = name_ref n, %n
 // CHECK:STDOUT:   %int_0.loc16_32: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc16_33.1: %struct_type.a.b.c.1ee = struct_literal (%int_0.loc16_16, %n.ref, %int_0.loc16_32)
-// CHECK:STDOUT:   %impl.elem0.loc16_33.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc16_33.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_33.1: <bound method> = bound_method %int_0.loc16_16, %impl.elem0.loc16_33.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc16_33.1: <specific function> = specific_function %impl.elem0.loc16_33.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_33.2: <bound method> = bound_method %int_0.loc16_16, %specific_fn.loc16_33.1 [concrete = constants.%bound_method]
@@ -107,7 +107,7 @@ fn Make(n: i32) -> {.a: i32, .b: i32, .c: i32} {
 // CHECK:STDOUT:   %.loc16_33.4: init %i32 = initialize_from %.loc16_33.2 to %.loc16_33.3 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc16_33.5: ref %i32 = struct_access %return, element1
 // CHECK:STDOUT:   %.loc16_33.6: init %i32 = initialize_from %n.ref to %.loc16_33.5
-// CHECK:STDOUT:   %impl.elem0.loc16_33.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
+// CHECK:STDOUT:   %impl.elem0.loc16_33.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
 // CHECK:STDOUT:   %bound_method.loc16_33.3: <bound method> = bound_method %int_0.loc16_32, %impl.elem0.loc16_33.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound]
 // CHECK:STDOUT:   %specific_fn.loc16_33.2: <specific function> = specific_function %impl.elem0.loc16_33.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc16_33.4: <bound method> = bound_method %int_0.loc16_32, %specific_fn.loc16_33.2 [concrete = constants.%bound_method]
diff --git a/toolchain/check/testdata/struct/tuple_as_element.carbon b/toolchain/check/testdata/struct/tuple_as_element.carbon
index 4cf0d74acd2c..fd569863756a 100644
--- a/toolchain/check/testdata/struct/tuple_as_element.carbon
+++ b/toolchain/check/testdata/struct/tuple_as_element.carbon
@@ -33,24 +33,24 @@ var y: {.a: i32, .b: (i32,)} = x;
 // CHECK:STDOUT:   %.b14: ref %i32 = struct_access file.%x.var, element0 [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %.dd9: ref %tuple.type.a1c = struct_access file.%x.var, element1 [concrete]
 // CHECK:STDOUT:   %tuple.elem0.2a6: ref %i32 = tuple_access %.dd9, element0 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.a1c = tuple_value (%int_2.ef8) [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.3d5 = struct_value (%int_1.5d2, %tuple) [concrete]
@@ -67,8 +67,8 @@ var y: {.a: i32, .b: (i32,)} = x;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -116,18 +116,18 @@ var y: {.a: i32, .b: (i32,)} = x;
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc15_49.1: %tuple.type.985 = tuple_literal (%int_2)
 // CHECK:STDOUT:   %.loc15_50.1: %struct_type.a.b.057 = struct_literal (%int_1, %.loc15_49.1)
-// CHECK:STDOUT:   %impl.elem0.loc15_50: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_50.1: <bound method> = bound_method %int_1, %impl.elem0.loc15_50 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc15_50: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_50.1: <bound method> = bound_method %int_1, %impl.elem0.loc15_50 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc15_50: <specific function> = specific_function %impl.elem0.loc15_50, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_50.2: <bound method> = bound_method %int_1, %specific_fn.loc15_50 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc15_50.2: <bound method> = bound_method %int_1, %specific_fn.loc15_50 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_50: init %i32 = call %bound_method.loc15_50.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_50.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_50 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_50.3: ref %i32 = struct_access file.%x.var, element0 [concrete = constants.%.b14]
 // CHECK:STDOUT:   %.loc15_50.4: init %i32 = initialize_from %.loc15_50.2 to %.loc15_50.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc15_49: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_49.1: <bound method> = bound_method %int_2, %impl.elem0.loc15_49 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc15_49: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_49.1: <bound method> = bound_method %int_2, %impl.elem0.loc15_49 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc15_49: <specific function> = specific_function %impl.elem0.loc15_49, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_49.2: <bound method> = bound_method %int_2, %specific_fn.loc15_49 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc15_49.2: <bound method> = bound_method %int_2, %specific_fn.loc15_49 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_49: init %i32 = call %bound_method.loc15_49.2(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc15_49.2: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_49 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc15_50.5: ref %tuple.type.a1c = struct_access file.%x.var, element1 [concrete = constants.%.dd9]
diff --git a/toolchain/check/testdata/struct/two_entries.carbon b/toolchain/check/testdata/struct/two_entries.carbon
index caa7784bb898..04753ba62822 100644
--- a/toolchain/check/testdata/struct/two_entries.carbon
+++ b/toolchain/check/testdata/struct/two_entries.carbon
@@ -32,22 +32,22 @@ var y: {.a: i32, .b: i32} = x;
 // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
 // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %struct: %struct_type.a.b.501 = struct_value (%int_1.5d2, %int_2.ef8) [concrete]
 // CHECK:STDOUT:   %.22f: ref %i32 = struct_access file.%x.var, element0 [concrete]
@@ -65,8 +65,8 @@ var y: {.a: i32, .b: i32} = x;
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
 // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -88,17 +88,17 @@ var y: {.a: i32, .b: i32} = x;
 // CHECK:STDOUT:     %i32.loc15_22: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
 // CHECK:STDOUT:     %struct_type.a.b.loc15: type = struct_type {.a: %i32, .b: %i32} [concrete = constants.%struct_type.a.b.501]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %impl.elem0.loc15_44.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_44.1: <bound method> = bound_method @__global_init.%int_1.loc15, %impl.elem0.loc15_44.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc15_44.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_44.1: <bound method> = bound_method @__global_init.%int_1.loc15, %impl.elem0.loc15_44.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc15_44.1: <specific function> = specific_function %impl.elem0.loc15_44.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_44.2: <bound method> = bound_method @__global_init.%int_1.loc15, %specific_fn.loc15_44.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc15_44.2: <bound method> = bound_method @__global_init.%int_1.loc15, %specific_fn.loc15_44.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_44.1: init %i32 = call %bound_method.loc15_44.2(@__global_init.%int_1.loc15) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_44.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_44.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc15_44.2: %i32 = converted @__global_init.%int_1.loc15, %.loc15_44.1 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc15_44.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc15_44.3: <bound method> = bound_method @__global_init.%int_2.loc15, %impl.elem0.loc15_44.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc15_44.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc15_44.3: <bound method> = bound_method @__global_init.%int_2.loc15, %impl.elem0.loc15_44.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc15_44.2: <specific function> = specific_function %impl.elem0.loc15_44.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc15_44.4: <bound method> = bound_method @__global_init.%int_2.loc15, %specific_fn.loc15_44.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc15_44.4: <bound method> = bound_method @__global_init.%int_2.loc15, %specific_fn.loc15_44.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_44.2: init %i32 = call %bound_method.loc15_44.4(@__global_init.%int_2.loc15) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc15_44.3: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15_44.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc15_44.4: %i32 = converted @__global_init.%int_2.loc15, %.loc15_44.3 [concrete = constants.%int_2.ef8]
@@ -153,18 +153,18 @@ var y: {.a: i32, .b: i32} = x;
 // CHECK:STDOUT:   %int_1.loc18: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_2.loc18: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc18_44.1: %struct_type.a.b.cfd = struct_literal (%int_1.loc18, %int_2.loc18)
-// CHECK:STDOUT:   %impl.elem0.loc18_44.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_44.1: <bound method> = bound_method %int_1.loc18, %impl.elem0.loc18_44.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc18_44.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_44.1: <bound method> = bound_method %int_1.loc18, %impl.elem0.loc18_44.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc18_44.1: <specific function> = specific_function %impl.elem0.loc18_44.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_44.2: <bound method> = bound_method %int_1.loc18, %specific_fn.loc18_44.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc18_44.2: <bound method> = bound_method %int_1.loc18, %specific_fn.loc18_44.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_44.1: init %i32 = call %bound_method.loc18_44.2(%int_1.loc18) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_44.2: init %i32 = converted %int_1.loc18, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_44.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc18_44.3: ref %i32 = struct_access file.%x.var, element0 [concrete = constants.%.22f]
 // CHECK:STDOUT:   %.loc18_44.4: init %i32 = initialize_from %.loc18_44.2 to %.loc18_44.3 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc18_44.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc18_44.3: <bound method> = bound_method %int_2.loc18, %impl.elem0.loc18_44.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc18_44.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc18_44.3: <bound method> = bound_method %int_2.loc18, %impl.elem0.loc18_44.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc18_44.2: <specific function> = specific_function %impl.elem0.loc18_44.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc18_44.4: <bound method> = bound_method %int_2.loc18, %specific_fn.loc18_44.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc18_44.4: <bound method> = bound_method %int_2.loc18, %specific_fn.loc18_44.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_44.2: init %i32 = call %bound_method.loc18_44.4(%int_2.loc18) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_44.5: init %i32 = converted %int_2.loc18, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc18_44.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc18_44.6: ref %i32 = struct_access file.%x.var, element1 [concrete = constants.%.5fc]
diff --git a/toolchain/check/testdata/tuple/element_access.carbon b/toolchain/check/testdata/tuple/element_access.carbon
index 3932f25e6294..c1542bddc3c1 100644
--- a/toolchain/check/testdata/tuple/element_access.carbon
+++ b/toolchain/check/testdata/tuple/element_access.carbon
@@ -201,52 +201,52 @@ var b: i32 = a.({.index = 2}.index);
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %tuple.elem1: ref %i32 = tuple_access file.%a.var, element1 [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %ImplicitAs.type.2fd: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.139: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [concrete]
 // CHECK:STDOUT:   %From: Core.IntLiteral = bind_symbolic_name From, 0 [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.708: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.c68: %Int.as.ImplicitAs.impl.Convert.type.708 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.eb9: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%From) [symbolic]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.958: %Int.as.ImplicitAs.impl.Convert.type.eb9 = struct_value () [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.71e: type = fn_type @ImplicitAs.Convert, @ImplicitAs(Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.062: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.527: %Core.IntLiteral.as.As.impl.Convert.type.062 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.676: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.086: %Core.IntLiteral.as.As.impl.Convert.type.676 = struct_value () [symbolic]
 // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.index.b1b: type = struct_type {.index: Core.IntLiteral} [concrete]
 // CHECK:STDOUT:   %struct.972: %struct_type.index.b1b = struct_value (%int_1.5b8) [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [concrete]
+// CHECK:STDOUT:   %As.type.047: type = facet_type <@As, @As(%i32)> [concrete]
 // CHECK:STDOUT:   %As.Convert.type.99b: type = fn_type @As.Convert, @As(%i32) [concrete]
-// CHECK:STDOUT:   %As.impl_witness.6b4: <witness> = impl_witness imports.%As.impl_witness_table.eb4, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.4fd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.197: %Core.IntLiteral.as.As.impl.Convert.type.4fd = struct_value () [concrete]
-// CHECK:STDOUT:   %As.facet: %As.type.fd4 = facet_value Core.IntLiteral, (%As.impl_witness.6b4) [concrete]
-// CHECK:STDOUT:   %.982: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.129: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.197, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.46b: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %As.impl_witness.a7b: <witness> = impl_witness imports.%As.impl_witness_table.3fe, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.type.7bd: type = fn_type @Core.IntLiteral.as.As.impl.Convert, @Core.IntLiteral.as.As.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.11b: %Core.IntLiteral.as.As.impl.Convert.type.7bd = struct_value () [concrete]
+// CHECK:STDOUT:   %As.facet: %As.type.047 = facet_value Core.IntLiteral, (%As.impl_witness.a7b) [concrete]
+// CHECK:STDOUT:   %.323: type = fn_type_with_self_type %As.Convert.type.99b, %As.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.92d: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.As.impl.Convert.11b, @Core.IntLiteral.as.As.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.385: <bound method> = bound_method %int_0.5c6, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.a11: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1d9, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.4ad: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.960: %Int.as.ImplicitAs.impl.Convert.type.4ad = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet.f49: %ImplicitAs.type.2fd = facet_value %i32, (%ImplicitAs.impl_witness.a11) [concrete]
-// CHECK:STDOUT:   %.0ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.f49 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.0fd: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.960, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.4b5: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.c1b: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.197 [concrete]
-// CHECK:STDOUT:   %bound_method.082: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.6fb: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.13c, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.type.d5d: type = fn_type @Int.as.ImplicitAs.impl.Convert, @Int.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.87c: %Int.as.ImplicitAs.impl.Convert.type.d5d = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet.4d7: %ImplicitAs.type.139 = facet_value %i32, (%ImplicitAs.impl_witness.6fb) [concrete]
+// CHECK:STDOUT:   %.2d1: type = fn_type_with_self_type %ImplicitAs.Convert.type.71e, %ImplicitAs.facet.4d7 [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.d56: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Int.as.ImplicitAs.impl.Convert.87c, @Int.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.4b6: <bound method> = bound_method %int_0.6a9, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.bound.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.11b [concrete]
+// CHECK:STDOUT:   %bound_method.fee: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.As.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
 // CHECK:STDOUT:   %struct_type.index.6ea: type = struct_type {.index: %i32} [concrete]
 // CHECK:STDOUT:   %struct.63a: %struct_type.index.6ea = struct_value (%int_1.5d2) [concrete]
-// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.faf: <bound method> = bound_method %int_1.5d2, %Int.as.ImplicitAs.impl.Convert.960 [concrete]
-// CHECK:STDOUT:   %bound_method.711: <bound method> = bound_method %int_1.5d2, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.bound.b5a: <bound method> = bound_method %int_1.5d2, %Int.as.ImplicitAs.impl.Convert.87c [concrete]
+// CHECK:STDOUT:   %bound_method.64e: <bound method> = bound_method %int_1.5d2, %Int.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.85c: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.708) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.c68)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1d9 = impl_witness_table (%Core.import_ref.85c), @Int.as.ImplicitAs.impl [concrete]
-// CHECK:STDOUT:   %Core.import_ref.78a: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.062) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.527)]
-// CHECK:STDOUT:   %As.impl_witness_table.eb4 = impl_witness_table (%Core.import_ref.78a), @Core.IntLiteral.as.As.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.02e: @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert.type (%Int.as.ImplicitAs.impl.Convert.type.eb9) = import_ref Core//prelude/parts/int, loc20_44, loaded [symbolic = @Int.as.ImplicitAs.impl.%Int.as.ImplicitAs.impl.Convert (constants.%Int.as.ImplicitAs.impl.Convert.958)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.13c = impl_witness_table (%Core.import_ref.02e), @Int.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.52c: @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert.type (%Core.IntLiteral.as.As.impl.Convert.type.676) = import_ref Core//prelude/parts/int, loc25_39, loaded [symbolic = @Core.IntLiteral.as.As.impl.%Core.IntLiteral.as.As.impl.Convert (constants.%Core.IntLiteral.as.As.impl.Convert.086)]
+// CHECK:STDOUT:   %As.impl_witness_table.3fe = impl_witness_table (%Core.import_ref.52c), @Core.IntLiteral.as.As.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -298,17 +298,17 @@ var b: i32 = a.({.index = 2}.index);
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %int_32.loc6: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc6_18.1: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
-// CHECK:STDOUT:   %bound_method.loc6_18.1: <bound method> = bound_method %int_0, %impl.elem0.loc6_18.1 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.129]
+// CHECK:STDOUT:   %impl.elem0.loc6_18.1: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
+// CHECK:STDOUT:   %bound_method.loc6_18.1: <bound method> = bound_method %int_0, %impl.elem0.loc6_18.1 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.92d]
 // CHECK:STDOUT:   %specific_fn.loc6_18.1: <specific function> = specific_function %impl.elem0.loc6_18.1, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_18.2: <bound method> = bound_method %int_0, %specific_fn.loc6_18.1 [concrete = constants.%bound_method.46b]
+// CHECK:STDOUT:   %bound_method.loc6_18.2: <bound method> = bound_method %int_0, %specific_fn.loc6_18.1 [concrete = constants.%bound_method.385]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call.loc6: init %i32 = call %bound_method.loc6_18.2(%int_0) [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_18.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call.loc6 [concrete = constants.%int_0.6a9]
 // CHECK:STDOUT:   %.loc6_18.2: %i32 = converted %int_0, %.loc6_18.1 [concrete = constants.%int_0.6a9]
-// CHECK:STDOUT:   %impl.elem0.loc6_18.2: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
-// CHECK:STDOUT:   %bound_method.loc6_18.3: <bound method> = bound_method %.loc6_18.2, %impl.elem0.loc6_18.2 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.bound.0fd]
+// CHECK:STDOUT:   %impl.elem0.loc6_18.2: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
+// CHECK:STDOUT:   %bound_method.loc6_18.3: <bound method> = bound_method %.loc6_18.2, %impl.elem0.loc6_18.2 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.bound.d56]
 // CHECK:STDOUT:   %specific_fn.loc6_18.2: <specific function> = specific_function %impl.elem0.loc6_18.2, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc6_18.4: <bound method> = bound_method %.loc6_18.2, %specific_fn.loc6_18.2 [concrete = constants.%bound_method.4b5]
+// CHECK:STDOUT:   %bound_method.loc6_18.4: <bound method> = bound_method %.loc6_18.2, %specific_fn.loc6_18.2 [concrete = constants.%bound_method.4b6]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc6: init Core.IntLiteral = call %bound_method.loc6_18.4(%.loc6_18.2) [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc6_18.3: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc6 [concrete = constants.%int_0.5c6]
 // CHECK:STDOUT:   %.loc6_18.4: Core.IntLiteral = converted %.loc6_18.2, %.loc6_18.3 [concrete = constants.%int_0.5c6]
@@ -320,10 +320,10 @@ var b: i32 = a.({.index = 2}.index);
 // CHECK:STDOUT:   %int_1.loc7: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %int_32.loc7: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:   %i32.loc7: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:   %impl.elem0.loc7_29: %.982 = impl_witness_access constants.%As.impl_witness.6b4, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.197]
-// CHECK:STDOUT:   %bound_method.loc7_29.1: <bound method> = bound_method %int_1.loc7, %impl.elem0.loc7_29 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.c1b]
+// CHECK:STDOUT:   %impl.elem0.loc7_29: %.323 = impl_witness_access constants.%As.impl_witness.a7b, element0 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.11b]
+// CHECK:STDOUT:   %bound_method.loc7_29.1: <bound method> = bound_method %int_1.loc7, %impl.elem0.loc7_29 [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.bound.b59]
 // CHECK:STDOUT:   %specific_fn.loc7_29: <specific function> = specific_function %impl.elem0.loc7_29, @Core.IntLiteral.as.As.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.As.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_29.2: <bound method> = bound_method %int_1.loc7, %specific_fn.loc7_29 [concrete = constants.%bound_method.082]
+// CHECK:STDOUT:   %bound_method.loc7_29.2: <bound method> = bound_method %int_1.loc7, %specific_fn.loc7_29 [concrete = constants.%bound_method.fee]
 // CHECK:STDOUT:   %Core.IntLiteral.as.As.impl.Convert.call.loc7: init %i32 = call %bound_method.loc7_29.2(%int_1.loc7) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc7_29.1: %i32 = value_of_initializer %Core.IntLiteral.as.As.impl.Convert.call.loc7 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc7_29.2: %i32 = converted %int_1.loc7, %.loc7_29.1 [concrete = constants.%int_1.5d2]
@@ -331,10 +331,10 @@ var b: i32 = a.({.index = 2}.index);
 // CHECK:STDOUT:   %struct.loc7: %struct_type.index.6ea = struct_value (%.loc7_29.2) [concrete = constants.%struct.63a]
 // CHECK:STDOUT:   %.loc7_35.2: %struct_type.index.6ea = converted %.loc7_35.1, %struct.loc7 [concrete = constants.%struct.63a]
 // CHECK:STDOUT:   %.loc7_36.1: %i32 = struct_access %.loc7_35.2, element0 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc7_36: %.0ea = impl_witness_access constants.%ImplicitAs.impl_witness.a11, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.960]
-// CHECK:STDOUT:   %bound_method.loc7_36.1: <bound method> = bound_method %.loc7_36.1, %impl.elem0.loc7_36 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.bound.faf]
+// CHECK:STDOUT:   %impl.elem0.loc7_36: %.2d1 = impl_witness_access constants.%ImplicitAs.impl_witness.6fb, element0 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.87c]
+// CHECK:STDOUT:   %bound_method.loc7_36.1: <bound method> = bound_method %.loc7_36.1, %impl.elem0.loc7_36 [concrete = constants.%Int.as.ImplicitAs.impl.Convert.bound.b5a]
 // CHECK:STDOUT:   %specific_fn.loc7_36: <specific function> = specific_function %impl.elem0.loc7_36, @Int.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Int.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc7_36.2: <bound method> = bound_method %.loc7_36.1, %specific_fn.loc7_36 [concrete = constants.%bound_method.711]
+// CHECK:STDOUT:   %bound_method.loc7_36.2: <bound method> = bound_method %.loc7_36.1, %specific_fn.loc7_36 [concrete = constants.%bound_method.64e]
 // CHECK:STDOUT:   %Int.as.ImplicitAs.impl.Convert.call.loc7: init Core.IntLiteral = call %bound_method.loc7_36.2(%.loc7_36.1) [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc7_36.2: Core.IntLiteral = value_of_initializer %Int.as.ImplicitAs.impl.Convert.call.loc7 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:   %.loc7_36.3: Core.IntLiteral = converted %.loc7_36.1, %.loc7_36.2 [concrete = constants.%int_1.5b8]
@@ -354,8 +354,8 @@ var b: i32 = a.({.index = 2}.index);
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.438: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.a1c) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.c8e: %T.as.Destroy.impl.Op.type.438 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.68f: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.a1c) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.976: %T.as.Destroy.impl.Op.type.68f = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.0b7: type = ptr_type %tuple.type.a1c [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -371,7 +371,7 @@ var b: i32 = a.({.index = 2}.index);
 // CHECK:STDOUT:   %.loc7_12.2: ref %tuple.type.a1c = temporary %.loc7_12.1, %F.call
 // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access %.loc7_12.2, element0
 // CHECK:STDOUT:   %.loc7_13: %i32 = bind_value %tuple.elem0
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc7_12.2, constants.%T.as.Destroy.impl.Op.c8e
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc7_12.2, constants.%T.as.Destroy.impl.Op.976
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc7_12.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.0b7 = addr_of %.loc7_12.2
diff --git a/toolchain/check/testdata/tuple/import.carbon b/toolchain/check/testdata/tuple/import.carbon
index f6eec19974dd..372002afa29d 100644
--- a/toolchain/check/testdata/tuple/import.carbon
+++ b/toolchain/check/testdata/tuple/import.carbon
@@ -85,8 +85,8 @@ fn F() -> (i32,) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.458: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.e13: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %tuple.type.c2c: type = tuple_type (%i32, %i32) [concrete]
@@ -118,19 +118,19 @@ fn F() -> (i32,) {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.b9e: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.ea1: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.ea0: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.2ce: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.1ad, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e14: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.e14 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.b9e = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.2ce) [concrete]
-// CHECK:STDOUT:   %.940: type = fn_type_with_self_type %ImplicitAs.Convert.type.ea0, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.dc5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.c37: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.985: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.449, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.365: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.365 = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.ea1 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.985) [concrete]
+// CHECK:STDOUT:   %.f75: type = fn_type_with_self_type %ImplicitAs.Convert.type.ea0, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.855: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.5d4: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.47b: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.30f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb [concrete]
-// CHECK:STDOUT:   %bound_method.62b: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b18: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c [concrete]
+// CHECK:STDOUT:   %bound_method.862: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.d0d: %i32 = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.c2c = tuple_value (%int_1.47b, %int_2.d0d) [concrete]
 // CHECK:STDOUT:   %C.cf0: type = class_type @C, @C(%tuple) [concrete]
@@ -144,8 +144,8 @@ fn F() -> (i32,) {
 // CHECK:STDOUT:   %Implicit.b_ref: ref %tuple.type.cfa = import_ref Implicit//default, b_ref, loaded [concrete = %b_ref.var]
 // CHECK:STDOUT:   %Implicit.C: %C.type = import_ref Implicit//default, C, loaded [concrete = constants.%C.generic]
 // CHECK:STDOUT:   %Implicit.F: %F.type = import_ref Implicit//default, F, loaded [concrete = constants.%F]
-// CHECK:STDOUT:   %Implicit.import_ref.773: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9a6) = import_ref Implicit//default, inst152 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.458)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.1ad = impl_witness_table (%Implicit.import_ref.773), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Implicit.import_ref.3ad: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.4c1) = import_ref Implicit//default, inst152 [indirect], loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.e13)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.449 = impl_witness_table (%Implicit.import_ref.3ad), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT:   %a_ref.patt: %pattern_type.2e8 = binding_pattern a_ref [concrete]
 // CHECK:STDOUT:   %a_ref.var_patt: %pattern_type.2e8 = var_pattern %a_ref.patt [concrete]
 // CHECK:STDOUT:   %a_ref.var: ref %tuple.type.dd4 = var %a_ref.var_patt [concrete]
@@ -201,17 +201,17 @@ fn F() -> (i32,) {
 // CHECK:STDOUT:     %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
 // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:     %.loc7_15.1: %tuple.type.f94 = tuple_literal (%int_1, %int_2)
-// CHECK:STDOUT:     %impl.elem0.loc7_15.1: %.940 = impl_witness_access constants.%ImplicitAs.impl_witness.2ce, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb]
-// CHECK:STDOUT:     %bound_method.loc7_15.1: <bound method> = bound_method %int_1, %impl.elem0.loc7_15.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.dc5]
+// CHECK:STDOUT:     %impl.elem0.loc7_15.1: %.f75 = impl_witness_access constants.%ImplicitAs.impl_witness.985, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c]
+// CHECK:STDOUT:     %bound_method.loc7_15.1: <bound method> = bound_method %int_1, %impl.elem0.loc7_15.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.855]
 // CHECK:STDOUT:     %specific_fn.loc7_15.1: <specific function> = specific_function %impl.elem0.loc7_15.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc7_15.2: <bound method> = bound_method %int_1, %specific_fn.loc7_15.1 [concrete = constants.%bound_method.c37]
+// CHECK:STDOUT:     %bound_method.loc7_15.2: <bound method> = bound_method %int_1, %specific_fn.loc7_15.1 [concrete = constants.%bound_method.5d4]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_15.1: init %i32 = call %bound_method.loc7_15.2(%int_1) [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:     %.loc7_15.2: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_15.1 [concrete = constants.%int_1.47b]
 // CHECK:STDOUT:     %.loc7_15.3: %i32 = converted %int_1, %.loc7_15.2 [concrete = constants.%int_1.47b]
-// CHECK:STDOUT:     %impl.elem0.loc7_15.2: %.940 = impl_witness_access constants.%ImplicitAs.impl_witness.2ce, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4cb]
-// CHECK:STDOUT:     %bound_method.loc7_15.3: <bound method> = bound_method %int_2, %impl.elem0.loc7_15.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.30f]
+// CHECK:STDOUT:     %impl.elem0.loc7_15.2: %.f75 = impl_witness_access constants.%ImplicitAs.impl_witness.985, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.c4c]
+// CHECK:STDOUT:     %bound_method.loc7_15.3: <bound method> = bound_method %int_2, %impl.elem0.loc7_15.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.b18]
 // CHECK:STDOUT:     %specific_fn.loc7_15.2: <specific function> = specific_function %impl.elem0.loc7_15.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:     %bound_method.loc7_15.4: <bound method> = bound_method %int_2, %specific_fn.loc7_15.2 [concrete = constants.%bound_method.62b]
+// CHECK:STDOUT:     %bound_method.loc7_15.4: <bound method> = bound_method %int_2, %specific_fn.loc7_15.2 [concrete = constants.%bound_method.862]
 // CHECK:STDOUT:     %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_15.2: init %i32 = call %bound_method.loc7_15.4(%int_2) [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:     %.loc7_15.4: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc7_15.2 [concrete = constants.%int_2.d0d]
 // CHECK:STDOUT:     %.loc7_15.5: %i32 = converted %int_2, %.loc7_15.4 [concrete = constants.%int_2.d0d]
diff --git a/toolchain/check/testdata/tuple/in_place_tuple_init.carbon b/toolchain/check/testdata/tuple/in_place_tuple_init.carbon
index fcfee0c93c2a..42132552c7a4 100644
--- a/toolchain/check/testdata/tuple/in_place_tuple_init.carbon
+++ b/toolchain/check/testdata/tuple/in_place_tuple_init.carbon
@@ -60,8 +60,8 @@ fn H() {
 // CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.261: type = ptr_type %tuple.type.d07 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a4a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.d07) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.7c6: %T.as.Destroy.impl.Op.type.a4a = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.623: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.d07) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.55d: %T.as.Destroy.impl.Op.type.623 = struct_value () [concrete]
 // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -96,7 +96,7 @@ fn H() {
 // CHECK:STDOUT:   %F.ref.loc9: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %F.call.loc9: init %tuple.type.d07 = call %F.ref.loc9() to %.loc5_8
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.7c6
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.55d
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.261 = addr_of %v.var
@@ -113,7 +113,7 @@ fn H() {
 // CHECK:STDOUT:   %.loc15_12.2: ref %tuple.type.d07 = temporary %.loc15_12.1, %G.call
 // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access %.loc15_12.2, element0
 // CHECK:STDOUT:   %.loc15_13: %i32 = bind_value %tuple.elem0
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc15_12.2, constants.%T.as.Destroy.impl.Op.7c6
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc15_12.2, constants.%T.as.Destroy.impl.Op.55d
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.loc15_12.2, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.261 = addr_of %.loc15_12.2
@@ -135,10 +135,10 @@ fn H() {
 // CHECK:STDOUT:   %tuple.type.99b: type = tuple_type (%tuple.type.189, %tuple.type.189) [concrete]
 // CHECK:STDOUT:   %pattern_type.d88: type = pattern_type %tuple.type.99b [concrete]
 // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f06: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.387: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.99b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.b09: %T.as.Destroy.impl.Op.type.387 = struct_value () [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.c7c: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.99b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.96d: %T.as.Destroy.impl.Op.type.c7c = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.8bc: type = ptr_type %tuple.type.99b [concrete]
 // CHECK:STDOUT:   %tuple.type.3a3: type = tuple_type (type, %tuple.type.ff9, type) [concrete]
 // CHECK:STDOUT:   %tuple.type.516: type = tuple_type (%i32, %tuple.type.189, %i32) [concrete]
@@ -146,28 +146,28 @@ fn H() {
 // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
 // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
 // CHECK:STDOUT:   %tuple.type.667: type = tuple_type (Core.IntLiteral, %tuple.type.189, Core.IntLiteral) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
+// CHECK:STDOUT:   %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
 // CHECK:STDOUT:   %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.956: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.035 = struct_value () [concrete]
-// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
-// CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.956, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
-// CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
+// CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
+// CHECK:STDOUT:   %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
+// CHECK:STDOUT:   %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
-// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.956 [concrete]
-// CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
+// CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
+// CHECK:STDOUT:   %bound_method.f6f: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
 // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.701: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.516) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.dfb: %T.as.Destroy.impl.Op.type.701 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.6e4: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.516) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.51a: %T.as.Destroy.impl.Op.type.6e4 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.12e: type = ptr_type %tuple.type.516 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
-// CHECK:STDOUT:   %Core.import_ref.a5b: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f06)]
-// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
+// CHECK:STDOUT:   %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: fn @G() {
@@ -208,7 +208,7 @@ fn H() {
 // CHECK:STDOUT:     %.loc7_43.5: type = converted %.loc7_43.2, constants.%tuple.type.99b [concrete = constants.%tuple.type.99b]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %tuple.type.99b = bind_name v, %v.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.b09
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.96d
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.8bc = addr_of %v.var
@@ -229,18 +229,18 @@ fn H() {
 // CHECK:STDOUT:   %F.call: init %tuple.type.189 = call %F.ref() to %tuple.elem1
 // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
 // CHECK:STDOUT:   %.loc13_50.1: %tuple.type.667 = tuple_literal (%int_1, %F.call, %int_2)
-// CHECK:STDOUT:   %impl.elem0.loc13_50.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_50.1: <bound method> = bound_method %int_1, %impl.elem0.loc13_50.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ab5]
+// CHECK:STDOUT:   %impl.elem0.loc13_50.1: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_50.1: <bound method> = bound_method %int_1, %impl.elem0.loc13_50.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
 // CHECK:STDOUT:   %specific_fn.loc13_50.1: <specific function> = specific_function %impl.elem0.loc13_50.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_50.2: <bound method> = bound_method %int_1, %specific_fn.loc13_50.1 [concrete = constants.%bound_method.9a1]
+// CHECK:STDOUT:   %bound_method.loc13_50.2: <bound method> = bound_method %int_1, %specific_fn.loc13_50.1 [concrete = constants.%bound_method.b59]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_50.1: init %i32 = call %bound_method.loc13_50.2(%int_1) [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %.loc13_50.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_50.1 [concrete = constants.%int_1.5d2]
 // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access %v.var, element0
 // CHECK:STDOUT:   %.loc13_50.3: init %i32 = initialize_from %.loc13_50.2 to %tuple.elem0 [concrete = constants.%int_1.5d2]
-// CHECK:STDOUT:   %impl.elem0.loc13_50.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.956]
-// CHECK:STDOUT:   %bound_method.loc13_50.3: <bound method> = bound_method %int_2, %impl.elem0.loc13_50.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.ef9]
+// CHECK:STDOUT:   %impl.elem0.loc13_50.2: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
+// CHECK:STDOUT:   %bound_method.loc13_50.3: <bound method> = bound_method %int_2, %impl.elem0.loc13_50.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.2d9]
 // CHECK:STDOUT:   %specific_fn.loc13_50.2: <specific function> = specific_function %impl.elem0.loc13_50.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
-// CHECK:STDOUT:   %bound_method.loc13_50.4: <bound method> = bound_method %int_2, %specific_fn.loc13_50.2 [concrete = constants.%bound_method.b92]
+// CHECK:STDOUT:   %bound_method.loc13_50.4: <bound method> = bound_method %int_2, %specific_fn.loc13_50.2 [concrete = constants.%bound_method.f6f]
 // CHECK:STDOUT:   %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_50.2: init %i32 = call %bound_method.loc13_50.4(%int_2) [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %.loc13_50.4: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13_50.2 [concrete = constants.%int_2.ef8]
 // CHECK:STDOUT:   %tuple.elem2: ref %i32 = tuple_access %v.var, element2
@@ -265,7 +265,7 @@ fn H() {
 // CHECK:STDOUT:     %.loc13_36.4: type = converted %.loc13_36.2, constants.%tuple.type.516 [concrete = constants.%tuple.type.516]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %v: ref %tuple.type.516 = bind_name v, %v.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.dfb
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.51a
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc13_3: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.12e = addr_of %v.var
diff --git a/toolchain/check/testdata/tuple/tuple_pattern.carbon b/toolchain/check/testdata/tuple/tuple_pattern.carbon
index 8c7a8959edf2..56264a2bee9b 100644
--- a/toolchain/check/testdata/tuple/tuple_pattern.carbon
+++ b/toolchain/check/testdata/tuple/tuple_pattern.carbon
@@ -109,8 +109,8 @@ let (a: {}, b: {}) = ({}, {}, {});
 // CHECK:STDOUT:   %pattern_type.de4: type = pattern_type %tuple.type.b6b [concrete]
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.b6b = tuple_value (%empty_struct, %empty_struct) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.72a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.b6b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.973: %T.as.Destroy.impl.Op.type.72a = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.951: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.b6b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.78b: %T.as.Destroy.impl.Op.type.951 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.8fc: type = ptr_type %tuple.type.b6b [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -191,12 +191,12 @@ let (a: {}, b: {}) = ({}, {}, {});
 // CHECK:STDOUT:     %.loc8_19.3: type = converted %.loc8_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %d: ref %empty_struct_type = bind_name d, %tuple.elem1.loc8_3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.var.loc8, constants.%T.as.Destroy.impl.Op.973
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %.var.loc8, constants.%T.as.Destroy.impl.Op.78b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %.var.loc8, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc8: %ptr.8fc = addr_of %.var.loc8
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8: init %empty_tuple.type = call %bound_method.loc8(%addr.loc8)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %.var.loc7, constants.%T.as.Destroy.impl.Op.973
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %.var.loc7, constants.%T.as.Destroy.impl.Op.78b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc7: <bound method> = bound_method %.var.loc7, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc7: %ptr.8fc = addr_of %.var.loc7
@@ -214,8 +214,8 @@ let (a: {}, b: {}) = ({}, {}, {});
 // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.b6b = tuple_value (%empty_struct, %empty_struct) [concrete]
 // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.72a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.b6b) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.973: %T.as.Destroy.impl.Op.type.72a = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.951: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.b6b) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.78b: %T.as.Destroy.impl.Op.type.951 = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.8fc: type = ptr_type %tuple.type.b6b [concrete]
 // CHECK:STDOUT:   %MakeTuple.type: type = fn_type @MakeTuple [concrete]
 // CHECK:STDOUT:   %MakeTuple: %MakeTuple.type = struct_value () [concrete]
@@ -283,12 +283,12 @@ let (a: {}, b: {}) = ({}, {}, {});
 // CHECK:STDOUT:     %.loc7_19.3: type = converted %.loc7_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %empty_struct_type = bind_name y, %tuple.elem1.loc7_3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.973
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.78b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc7: <bound method> = bound_method %.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc7: %ptr.8fc = addr_of %.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc7: init %empty_tuple.type = call %bound_method.loc7(%addr.loc7)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc6: <bound method> = bound_method %tuple.var, constants.%T.as.Destroy.impl.Op.973
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc6: <bound method> = bound_method %tuple.var, constants.%T.as.Destroy.impl.Op.78b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method.loc6: <bound method> = bound_method %tuple.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc6: %ptr.8fc = addr_of %tuple.var
@@ -350,7 +350,7 @@ let (a: {}, b: {}) = ({}, {}, {});
 // CHECK:STDOUT:     %.loc14_19.3: type = converted %.loc14_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %empty_struct_type = bind_name y, %tuple.elem1.loc14_3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.973
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.78b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.8fc = addr_of %.var
@@ -383,7 +383,7 @@ let (a: {}, b: {}) = ({}, {}, {});
 // CHECK:STDOUT:     %.loc22_19.3: type = converted %.loc22_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %empty_struct_type = bind_name y, %tuple.elem1
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.973
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.78b
 // CHECK:STDOUT:   <elided>
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.8fc = addr_of %.var
diff --git a/toolchain/check/testdata/var/decl.carbon b/toolchain/check/testdata/var/decl.carbon
index f3983547d906..27ea6d05ed1e 100644
--- a/toolchain/check/testdata/var/decl.carbon
+++ b/toolchain/check/testdata/var/decl.carbon
@@ -26,10 +26,10 @@ fn Main() {
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -62,8 +62,8 @@ fn Main() {
 // CHECK:STDOUT:     %.loc3_11.3: type = converted %.loc3_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %empty_tuple.type = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/var/decl_with_init.carbon b/toolchain/check/testdata/var/decl_with_init.carbon
index 387f9698deea..4f0c46c83364 100644
--- a/toolchain/check/testdata/var/decl_with_init.carbon
+++ b/toolchain/check/testdata/var/decl_with_init.carbon
@@ -27,10 +27,10 @@ fn Main() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -67,8 +67,8 @@ fn Main() {
 // CHECK:STDOUT:     %.loc3_11.3: type = converted %.loc3_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %empty_tuple.type = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/var/fail_duplicate_decl.carbon b/toolchain/check/testdata/var/fail_duplicate_decl.carbon
index 5c0f71a7de34..7caaae4e81b2 100644
--- a/toolchain/check/testdata/var/fail_duplicate_decl.carbon
+++ b/toolchain/check/testdata/var/fail_duplicate_decl.carbon
@@ -35,10 +35,10 @@ fn Main() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -89,13 +89,13 @@ fn Main() {
 // CHECK:STDOUT:     %.loc11_11.3: type = converted %.loc11_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x.loc11: ref %empty_tuple.type = bind_name x, %x.var.loc11
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %x.var.loc11, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc11: <bound method> = bound_method %x.var.loc11, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc11: <bound method> = bound_method %x.var.loc11, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc11: %ptr.843 = addr_of %x.var.loc11
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc11: init %empty_tuple.type = call %bound_method.loc11(%addr.loc11)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc3: <bound method> = bound_method %x.var.loc3, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc3: <bound method> = bound_method %x.var.loc3, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc3: <bound method> = bound_method %x.var.loc3, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc3: %ptr.843 = addr_of %x.var.loc3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc3: init %empty_tuple.type = call %bound_method.loc3(%addr.loc3)
diff --git a/toolchain/check/testdata/var/fail_init_with_self.carbon b/toolchain/check/testdata/var/fail_init_with_self.carbon
index 72329b182cb1..24e055c77230 100644
--- a/toolchain/check/testdata/var/fail_init_with_self.carbon
+++ b/toolchain/check/testdata/var/fail_init_with_self.carbon
@@ -30,10 +30,10 @@ fn Main() {
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -68,8 +68,8 @@ fn Main() {
 // CHECK:STDOUT:     %.loc7_11.3: type = converted %.loc7_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %empty_tuple.type = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/var/fail_lookup_outside_scope.carbon b/toolchain/check/testdata/var/fail_lookup_outside_scope.carbon
index 9cd4e07769dc..1a169ccf59f3 100644
--- a/toolchain/check/testdata/var/fail_lookup_outside_scope.carbon
+++ b/toolchain/check/testdata/var/fail_lookup_outside_scope.carbon
@@ -32,10 +32,10 @@ var y: () = x;
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -80,8 +80,8 @@ var y: () = x;
 // CHECK:STDOUT:     %.loc3_11.3: type = converted %.loc3_11.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %empty_tuple.type = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/var/global_lookup_in_scope.carbon b/toolchain/check/testdata/var/global_lookup_in_scope.carbon
index 0c0b06bc9cea..e9ab9b388669 100644
--- a/toolchain/check/testdata/var/global_lookup_in_scope.carbon
+++ b/toolchain/check/testdata/var/global_lookup_in_scope.carbon
@@ -32,10 +32,10 @@ fn Main() {
 // CHECK:STDOUT:   %Main.type: type = fn_type @Main [concrete]
 // CHECK:STDOUT:   %Main: %Main.type = struct_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.7e5: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.v) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.477: %T.as.Destroy.impl.Op.type.7e5 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a0a: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%struct_type.v) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.4cc: %T.as.Destroy.impl.Op.type.a0a = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.ef9: type = ptr_type %struct_type.v [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.477, @T.as.Destroy.impl.Op(%struct_type.v) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.4cc, @T.as.Destroy.impl.Op(%struct_type.v) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -89,8 +89,8 @@ fn Main() {
 // CHECK:STDOUT:     %struct_type.v: type = struct_type {.v: %empty_tuple.type} [concrete = constants.%struct_type.v]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %struct_type.v = bind_name y, %y.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %y.var, constants.%T.as.Destroy.impl.Op.477
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.477, @T.as.Destroy.impl.Op(constants.%struct_type.v) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %y.var, constants.%T.as.Destroy.impl.Op.4cc
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.4cc, @T.as.Destroy.impl.Op(constants.%struct_type.v) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %y.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.ef9 = addr_of %y.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/var/lookup.carbon b/toolchain/check/testdata/var/lookup.carbon
index 144742e48c47..1ab34388bd00 100644
--- a/toolchain/check/testdata/var/lookup.carbon
+++ b/toolchain/check/testdata/var/lookup.carbon
@@ -26,10 +26,10 @@ fn Main() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -67,8 +67,8 @@ fn Main() {
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %empty_tuple.type = bind_name x, %x.var
 // CHECK:STDOUT:   %x.ref: ref %empty_tuple.type = name_ref x, %x
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
diff --git a/toolchain/check/testdata/var/shadowing.carbon b/toolchain/check/testdata/var/shadowing.carbon
index 37360b139e1e..4879c6c87f8e 100644
--- a/toolchain/check/testdata/var/shadowing.carbon
+++ b/toolchain/check/testdata/var/shadowing.carbon
@@ -39,10 +39,10 @@ fn Main() {
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -126,18 +126,18 @@ fn Main() {
 // CHECK:STDOUT:   br !if.else
 // CHECK:STDOUT:
 // CHECK:STDOUT: !if.else:
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var.loc10, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc10: <bound method> = bound_method %x.var.loc10, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc10: <bound method> = bound_method %x.var.loc10, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc10: %ptr.843 = addr_of %x.var.loc10
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc10: init %empty_tuple.type = call %bound_method.loc10(%addr.loc10)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %x.var.loc8, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %x.var.loc8, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8: <bound method> = bound_method %x.var.loc8, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8: %ptr.843 = addr_of %x.var.loc8
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8: init %empty_tuple.type = call %bound_method.loc8(%addr.loc8)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc5: <bound method> = bound_method %NS.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc5: <bound method> = bound_method %NS.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc5: <bound method> = bound_method %NS.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc5: %ptr.843 = addr_of %NS.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc5: init %empty_tuple.type = call %bound_method.loc5(%addr.loc5)
diff --git a/toolchain/check/testdata/var/var_pattern.carbon b/toolchain/check/testdata/var/var_pattern.carbon
index b24ab0acd7d9..7e891bfa3ed0 100644
--- a/toolchain/check/testdata/var/var_pattern.carbon
+++ b/toolchain/check/testdata/var/var_pattern.carbon
@@ -154,10 +154,10 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -194,8 +194,8 @@ fn G() {
 // CHECK:STDOUT:     %.loc5_15.3: type = converted %.loc5_15.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %x: ref %empty_tuple.type = bind_name x, %x.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %x.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %x.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %x.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -213,10 +213,10 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.5b8: type = pattern_type %tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -264,8 +264,8 @@ fn G() {
 // CHECK:STDOUT:     %.loc5_23.3: type = converted %.loc5_23.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %empty_tuple.type = bind_name y, %y.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %y.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %y.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %y.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.843 = addr_of %y.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -285,9 +285,9 @@ fn G() {
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type = tuple_value (%empty_tuple, %empty_tuple) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.4e8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.166: %T.as.Destroy.impl.Op.type.4e8 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(%tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2ab: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.38b: %T.as.Destroy.impl.Op.type.2ab = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(%tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -341,8 +341,8 @@ fn G() {
 // CHECK:STDOUT:     %.loc5_19.3: type = converted %.loc5_19.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %empty_tuple.type = bind_name y, %tuple.elem1.loc5_3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.166
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(constants.%tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.38b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(constants.%tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.709 = addr_of %.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -362,9 +362,9 @@ fn G() {
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type = tuple_value (%empty_tuple, %empty_tuple) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.4e8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.166: %T.as.Destroy.impl.Op.type.4e8 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(%tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2ab: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.38b: %T.as.Destroy.impl.Op.type.2ab = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(%tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -418,8 +418,8 @@ fn G() {
 // CHECK:STDOUT:     %.loc5_23.3: type = converted %.loc5_23.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %y: ref %empty_tuple.type = bind_name y, %tuple.elem1.loc5_7
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.166
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(constants.%tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.38b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(constants.%tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %.var, %T.as.Destroy.impl.Op.specific_fn
 // CHECK:STDOUT:   %addr: %ptr.709 = addr_of %.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
@@ -437,10 +437,10 @@ fn G() {
 // CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -510,13 +510,13 @@ fn G() {
 // CHECK:STDOUT:   %.loc4_13.2: init %empty_tuple.type = converted %.loc8_9.1, %.loc8_9.2 [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc4_13.3: ref %empty_tuple.type = temporary %.loc4_13.1, %.loc4_13.2
 // CHECK:STDOUT:   %F.call: init %empty_tuple.type = call %F.ref(%.loc8_5, %.loc4_13.3)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc4: <bound method> = bound_method %.loc4_13.3, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc4: <bound method> = bound_method %.loc4_13.3, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc4: <bound method> = bound_method %.loc4_13.3, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc4: %ptr.843 = addr_of %.loc4_13.3
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc4: init %empty_tuple.type = call %bound_method.loc4(%addr.loc4)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc7: <bound method> = bound_method %v.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc7: <bound method> = bound_method %v.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc7: %ptr.843 = addr_of %v.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc7: init %empty_tuple.type = call %bound_method.loc7(%addr.loc7)
@@ -635,15 +635,15 @@ fn G() {
 // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
 // CHECK:STDOUT:   %Destroy.Op: %Destroy.Op.type = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.bc9: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.46f: %T.as.Destroy.impl.Op.type.bc9 = struct_value () [symbolic]
-// CHECK:STDOUT:   %Destroy.impl_witness.1dc: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.305: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%T) [symbolic]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.e3a: %T.as.Destroy.impl.Op.type.305 = struct_value () [symbolic]
+// CHECK:STDOUT:   %Destroy.impl_witness.ac7: <witness> = impl_witness imports.%Destroy.impl_witness_table, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %empty_tuple.type, (%Destroy.impl_witness.1dc) [concrete]
-// CHECK:STDOUT:   %.346: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %empty_tuple.type, (%Destroy.impl_witness.ac7) [concrete]
+// CHECK:STDOUT:   %.262: type = fn_type_with_self_type %Destroy.Op.type, %Destroy.facet [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -660,8 +660,8 @@ fn G() {
 // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
 // CHECK:STDOUT:   %Core.import_ref.f99: %Destroy.assoc_type = import_ref Core//prelude/parts/destroy, loc5_28, loaded [concrete = constants.%assoc0]
 // CHECK:STDOUT:   %Core.import_ref.725: %Destroy.Op.type = import_ref Core//prelude/parts/destroy, loc5_28, loaded [concrete = constants.%Destroy.Op]
-// CHECK:STDOUT:   %Core.import_ref.0b9: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.bc9) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.46f)]
-// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.0b9), @T.as.Destroy.impl [concrete]
+// CHECK:STDOUT:   %Core.import_ref.efe: @T.as.Destroy.impl.%T.as.Destroy.impl.Op.type (%T.as.Destroy.impl.Op.type.305) = import_ref Core//prelude/parts/destroy, loc8_29, loaded [symbolic = @T.as.Destroy.impl.%T.as.Destroy.impl.Op (constants.%T.as.Destroy.impl.Op.e3a)]
+// CHECK:STDOUT:   %Destroy.impl_witness_table = impl_witness_table (%Core.import_ref.efe), @T.as.Destroy.impl [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -689,7 +689,7 @@ fn G() {
 // CHECK:STDOUT:   %.3: ref %empty_tuple.type = temporary %.1, %.2
 // CHECK:STDOUT:   %F.call: init %empty_tuple.type = call %F.ref(%.loc7_8.2, %.3)
 // CHECK:STDOUT:   %Op.ref: %Destroy.assoc_type = name_ref Op, imports.%Core.import_ref.f99 [concrete = constants.%assoc0]
-// CHECK:STDOUT:   %impl.elem0: %.346 = impl_witness_access constants.%Destroy.impl_witness.1dc, element0 [concrete = constants.%T.as.Destroy.impl.Op.ea3]
+// CHECK:STDOUT:   %impl.elem0: %.262 = impl_witness_access constants.%Destroy.impl_witness.ac7, element0 [concrete = constants.%T.as.Destroy.impl.Op.bae]
 // CHECK:STDOUT:   %bound_method.1: <bound method> = bound_method %.3, %impl.elem0
 // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.2: <bound method> = bound_method %.3, %specific_fn
@@ -715,13 +715,13 @@ fn G() {
 // CHECK:STDOUT:   %ptr.709: type = ptr_type %tuple.type.bcd [concrete]
 // CHECK:STDOUT:   %tuple: %tuple.type.bcd = tuple_value (%empty_tuple, %empty_tuple) [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.4e8: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.bcd) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.166: %T.as.Destroy.impl.Op.type.4e8 = struct_value () [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.48a: <specific function> = specific_function %T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(%tuple.type.bcd) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.2ab: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%tuple.type.bcd) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.38b: %T.as.Destroy.impl.Op.type.2ab = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.d2f: <specific function> = specific_function %T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(%tuple.type.bcd) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.393: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.900: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -791,13 +791,13 @@ fn G() {
 // CHECK:STDOUT:     %.loc9_35.3: type = converted %.loc9_35.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %z: ref %empty_tuple.type = bind_name z, %z.var
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9_15: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.166
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.166, @T.as.Destroy.impl.Op(constants.%tuple.type.bcd) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.48a]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9_15: <bound method> = bound_method %.var, constants.%T.as.Destroy.impl.Op.38b
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.38b, @T.as.Destroy.impl.Op(constants.%tuple.type.bcd) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.d2f]
 // CHECK:STDOUT:   %bound_method.loc9_15: <bound method> = bound_method %.var, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc9_15: %ptr.709 = addr_of %.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9_15: init %empty_tuple.type = call %bound_method.loc9_15(%addr.loc9_15)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9_27: <bound method> = bound_method %z.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.393]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc9_27: <bound method> = bound_method %z.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn.900]
 // CHECK:STDOUT:   %bound_method.loc9_27: <bound method> = bound_method %z.var, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc9_27: %ptr.843 = addr_of %z.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc9_27: init %empty_tuple.type = call %bound_method.loc9_27(%addr.loc9_27)
@@ -909,10 +909,10 @@ fn G() {
 // CHECK:STDOUT:   %pattern_type.8c1: type = pattern_type %tuple.type [concrete]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [concrete]
 // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.a63: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.ea3: %T.as.Destroy.impl.Op.type.a63 = struct_value () [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.type.abd: type = fn_type @T.as.Destroy.impl.Op, @T.as.Destroy.impl(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bae: %T.as.Destroy.impl.Op.type.abd = struct_value () [concrete]
 // CHECK:STDOUT:   %ptr.843: type = ptr_type %empty_tuple.type [concrete]
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(%empty_tuple.type) [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -986,18 +986,18 @@ fn G() {
 // CHECK:STDOUT:   %tuple.loc8_48: %empty_tuple.type = tuple_value () [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %.loc8_48.3: %empty_tuple.type = converted %F.call.loc8_48, %tuple.loc8_48 [concrete = constants.%empty_tuple]
 // CHECK:STDOUT:   %z: %empty_tuple.type = bind_name z, %.loc8_48.3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_48: <bound method> = bound_method %.loc8_48.2, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_48: <bound method> = bound_method %.loc8_48.2, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_48: <bound method> = bound_method %.loc8_48.2, %T.as.Destroy.impl.Op.specific_fn.1
 // CHECK:STDOUT:   %addr.loc8_48: %ptr.843 = addr_of %.loc8_48.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8_48: init %empty_tuple.type = call %bound_method.loc8_48(%addr.loc8_48)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_38: <bound method> = bound_method %.loc8_38.2, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_38: <bound method> = bound_method %.loc8_38.2, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_38: <bound method> = bound_method %.loc8_38.2, %T.as.Destroy.impl.Op.specific_fn.2
 // CHECK:STDOUT:   %addr.loc8_38: %ptr.843 = addr_of %.loc8_38.2
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8_38: init %empty_tuple.type = call %bound_method.loc8_38(%addr.loc8_38)
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_15: <bound method> = bound_method %y.var, constants.%T.as.Destroy.impl.Op.ea3
-// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.ea3, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.bound.loc8_15: <bound method> = bound_method %y.var, constants.%T.as.Destroy.impl.Op.bae
+// CHECK:STDOUT:   %T.as.Destroy.impl.Op.specific_fn.3: <specific function> = specific_function constants.%T.as.Destroy.impl.Op.bae, @T.as.Destroy.impl.Op(constants.%empty_tuple.type) [concrete = constants.%T.as.Destroy.impl.Op.specific_fn]
 // CHECK:STDOUT:   %bound_method.loc8_15: <bound method> = bound_method %y.var, %T.as.Destroy.impl.Op.specific_fn.3
 // CHECK:STDOUT:   %addr.loc8_15: %ptr.843 = addr_of %y.var
 // CHECK:STDOUT:   %T.as.Destroy.impl.Op.call.loc8_15: init %empty_tuple.type = call %bound_method.loc8_15(%addr.loc8_15)
diff --git a/toolchain/check/testdata/where_expr/constraints.carbon b/toolchain/check/testdata/where_expr/constraints.carbon
index a7349e1f1940..0305fbd8e200 100644
--- a/toolchain/check/testdata/where_expr/constraints.carbon
+++ b/toolchain/check/testdata/where_expr/constraints.carbon
@@ -188,8 +188,8 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.258 [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.92b [symbolic_self]
 // CHECK:STDOUT:   %T: %I.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %pattern_type: type = pattern_type %I.type [concrete]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
@@ -209,7 +209,7 @@ fn F() {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc7_18: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc7_12.2: type = where_expr %.Self.2 [concrete = constants.%I.type] {
@@ -226,7 +226,7 @@ fn F() {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %Type.ref: type = name_ref Type, file.%Type [concrete = type]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc13_18: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -263,8 +263,8 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: constants {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.258 [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.92b [symbolic_self]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -280,7 +280,7 @@ fn F() {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %J.ref: <error> = name_ref J, <error> [concrete = <error>]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc14_18: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -306,26 +306,26 @@ fn F() {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%Member [concrete]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %I_where.type.cad: type = facet_type <@I where TODO> [concrete]
-// CHECK:STDOUT:   %U: %I_where.type.cad = bind_symbolic_name U, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f03: type = pattern_type %I_where.type.cad [concrete]
+// CHECK:STDOUT:   %I_where.type.122: type = facet_type <@I where TODO> [concrete]
+// CHECK:STDOUT:   %U: %I_where.type.122 = bind_symbolic_name U, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.fc3: type = pattern_type %I_where.type.122 [concrete]
 // CHECK:STDOUT:   %EqualEqual.type: type = fn_type @EqualEqual [concrete]
 // CHECK:STDOUT:   %EqualEqual: %EqualEqual.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.968: %J.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type.78d: type = facet_access_type %.Self.968 [symbolic_self]
+// CHECK:STDOUT:   %.Self.991: %J.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type.c5c: type = facet_access_type %.Self.991 [symbolic_self]
 // CHECK:STDOUT:   %J_where.type: type = facet_type <@J where .Self impls @I> [concrete]
 // CHECK:STDOUT:   %V: %J_where.type = bind_symbolic_name V, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.d2b: type = pattern_type %J_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.8fd: type = pattern_type %J_where.type [concrete]
 // CHECK:STDOUT:   %Impls.type: type = fn_type @Impls [concrete]
 // CHECK:STDOUT:   %Impls: %Impls.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.as_type.541: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type.154: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
-// CHECK:STDOUT:   %I_where.type.427: type = facet_type <@I where .Self impls @J and TODO> [concrete]
-// CHECK:STDOUT:   %W: %I_where.type.427 = bind_symbolic_name W, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.127: type = pattern_type %I_where.type.427 [concrete]
+// CHECK:STDOUT:   %I_where.type.d59: type = facet_type <@I where .Self impls @J and TODO> [concrete]
+// CHECK:STDOUT:   %W: %I_where.type.d59 = bind_symbolic_name W, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.9fb: type = pattern_type %I_where.type.d59 [concrete]
 // CHECK:STDOUT:   %And.type: type = fn_type @And [concrete]
 // CHECK:STDOUT:   %And: %And.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -335,32 +335,32 @@ fn F() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %EqualEqual.decl: %EqualEqual.type = fn_decl @EqualEqual [concrete = constants.%EqualEqual] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.f03 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.fc3 = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc12_21.1: type = splice_block %.loc12_21.2 [concrete = constants.%I_where.type.cad] {
+// CHECK:STDOUT:     %.loc12_21.1: type = splice_block %.loc12_21.2 [concrete = constants.%I_where.type.122] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %.loc12_37: %empty_tuple.type = tuple_literal ()
-// CHECK:STDOUT:       %.loc12_21.2: type = where_expr %.Self.2 [concrete = constants.%I_where.type.cad] {
+// CHECK:STDOUT:       %.loc12_21.2: type = where_expr %.Self.2 [concrete = constants.%I_where.type.122] {
 // CHECK:STDOUT:         requirement_base_facet_type constants.%I.type
 // CHECK:STDOUT:         requirement_equivalent %.Self.ref, %.loc12_37
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U.loc12_15.2: %I_where.type.cad = bind_symbolic_name U, 0 [symbolic = %U.loc12_15.1 (constants.%U)]
+// CHECK:STDOUT:     %U.loc12_15.2: %I_where.type.122 = bind_symbolic_name U, 0 [symbolic = %U.loc12_15.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Impls.decl: %Impls.type = fn_decl @Impls [concrete = constants.%Impls] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.d2b = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.8fd = symbolic_binding_pattern V, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc14_16.1: type = splice_block %.loc14_16.2 [concrete = constants.%J_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:       %.Self.ref: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
-// CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.78d]
-// CHECK:STDOUT:       %.loc14_22: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.78d]
+// CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type.c5c]
+// CHECK:STDOUT:       %.loc14_22: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type.c5c]
 // CHECK:STDOUT:       %.loc14_16.2: type = where_expr %.Self.2 [concrete = constants.%J_where.type] {
 // CHECK:STDOUT:         requirement_base_facet_type constants.%J.type
 // CHECK:STDOUT:         requirement_impls %.loc14_22, %I.ref
@@ -369,34 +369,34 @@ fn F() {
 // CHECK:STDOUT:     %V.loc14_10.2: %J_where.type = bind_symbolic_name V, 0 [symbolic = %V.loc14_10.1 (constants.%V)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %And.decl: %And.type = fn_decl @And [concrete = constants.%And] {
-// CHECK:STDOUT:     %W.patt: %pattern_type.127 = symbolic_binding_pattern W, 0 [concrete]
+// CHECK:STDOUT:     %W.patt: %pattern_type.9fb = symbolic_binding_pattern W, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [concrete = constants.%I_where.type.427] {
+// CHECK:STDOUT:     %.loc16_14.1: type = splice_block %.loc16_14.2 [concrete = constants.%I_where.type.d59] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc16_20: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref.loc16_20: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
-// CHECK:STDOUT:       %.Self.as_type.loc16_20: type = facet_access_type %.Self.ref.loc16_20 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:       %.loc16_20: type = converted %.Self.ref.loc16_20, %.Self.as_type.loc16_20 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:       %.Self.ref.loc16_38: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.as_type.loc16_20: type = facet_access_type %.Self.ref.loc16_20 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:       %.loc16_20: type = converted %.Self.ref.loc16_20, %.Self.as_type.loc16_20 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:       %.Self.ref.loc16_38: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %Member.ref: %I.assoc_type = name_ref Member, @Member.%assoc0 [concrete = constants.%assoc0]
-// CHECK:STDOUT:       %.Self.as_type.loc16_38: type = facet_access_type %.Self.ref.loc16_38 [symbolic_self = constants.%.Self.as_type.541]
-// CHECK:STDOUT:       %.loc16_38: type = converted %.Self.ref.loc16_38, %.Self.as_type.loc16_38 [symbolic_self = constants.%.Self.as_type.541]
+// CHECK:STDOUT:       %.Self.as_type.loc16_38: type = facet_access_type %.Self.ref.loc16_38 [symbolic_self = constants.%.Self.as_type.154]
+// CHECK:STDOUT:       %.loc16_38: type = converted %.Self.ref.loc16_38, %.Self.as_type.loc16_38 [symbolic_self = constants.%.Self.as_type.154]
 // CHECK:STDOUT:       %impl.elem0: type = impl_witness_access constants.%I.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:       %.loc16_50: %empty_tuple.type = tuple_literal ()
-// CHECK:STDOUT:       %.loc16_14.2: type = where_expr %.Self.2 [concrete = constants.%I_where.type.427] {
+// CHECK:STDOUT:       %.loc16_14.2: type = where_expr %.Self.2 [concrete = constants.%I_where.type.d59] {
 // CHECK:STDOUT:         requirement_base_facet_type constants.%I.type
 // CHECK:STDOUT:         requirement_impls %.loc16_20, %J.ref
 // CHECK:STDOUT:         requirement_equivalent %impl.elem0, %.loc16_50
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %W.loc16_8.2: %I_where.type.427 = bind_symbolic_name W, 0 [symbolic = %W.loc16_8.1 (constants.%W)]
+// CHECK:STDOUT:     %W.loc16_8.2: %I_where.type.d59 = bind_symbolic_name W, 0 [symbolic = %W.loc16_8.1 (constants.%W)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @EqualEqual(%U.loc12_15.2: %I_where.type.cad) {
-// CHECK:STDOUT:   %U.loc12_15.1: %I_where.type.cad = bind_symbolic_name U, 0 [symbolic = %U.loc12_15.1 (constants.%U)]
+// CHECK:STDOUT: generic fn @EqualEqual(%U.loc12_15.2: %I_where.type.122) {
+// CHECK:STDOUT:   %U.loc12_15.1: %I_where.type.122 = bind_symbolic_name U, 0 [symbolic = %U.loc12_15.1 (constants.%U)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
@@ -407,8 +407,8 @@ fn F() {
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @And(%W.loc16_8.2: %I_where.type.427) {
-// CHECK:STDOUT:   %W.loc16_8.1: %I_where.type.427 = bind_symbolic_name W, 0 [symbolic = %W.loc16_8.1 (constants.%W)]
+// CHECK:STDOUT: generic fn @And(%W.loc16_8.2: %I_where.type.d59) {
+// CHECK:STDOUT:   %W.loc16_8.1: %I_where.type.d59 = bind_symbolic_name W, 0 [symbolic = %W.loc16_8.1 (constants.%W)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
@@ -433,9 +433,9 @@ fn F() {
 // CHECK:STDOUT:   %K.type: type = facet_type <@K> [concrete]
 // CHECK:STDOUT:   %K.assoc_type: type = assoc_entity_type @K [concrete]
 // CHECK:STDOUT:   %assoc0: %K.assoc_type = assoc_entity element0, @K.%Associated [concrete]
-// CHECK:STDOUT:   %.Self.02e: %K.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.02e [symbolic_self]
-// CHECK:STDOUT:   %K.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.02e, @K [symbolic_self]
+// CHECK:STDOUT:   %.Self.02d: %K.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.02d [symbolic_self]
+// CHECK:STDOUT:   %K.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.02d, @K [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: %L.type = impl_witness_access %K.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %as_type: type = facet_access_type %impl.elem0 [symbolic_self]
 // CHECK:STDOUT:   %K_where.type: type = facet_type <@K where TODO> [concrete]
@@ -456,7 +456,7 @@ fn F() {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %K.ref: type = name_ref K, file.%K.decl [concrete = constants.%K.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %K.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.02e]
+// CHECK:STDOUT:       %.Self.ref: %K.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.02d]
 // CHECK:STDOUT:       %Associated.ref: %K.assoc_type = name_ref Associated, @Associated.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc12_36.1: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
diff --git a/toolchain/check/testdata/where_expr/designator.carbon b/toolchain/check/testdata/where_expr/designator.carbon
index 97ec3c3a0e80..8cd326fb68a8 100644
--- a/toolchain/check/testdata/where_expr/designator.carbon
+++ b/toolchain/check/testdata/where_expr/designator.carbon
@@ -140,22 +140,22 @@ fn G(T:! type where C(()) impls I(.Self)) {}
 // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
 // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%Member [concrete]
 // CHECK:STDOUT:   %.Self.644: type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.258: %I.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.92b: %I.type = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where TODO> [concrete]
 // CHECK:STDOUT:   %T: %I_where.type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.f03: type = pattern_type %I_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.fc3: type = pattern_type %I_where.type [concrete]
 // CHECK:STDOUT:   %PeriodSelf.type: type = fn_type @PeriodSelf [concrete]
 // CHECK:STDOUT:   %PeriodSelf: %PeriodSelf.type = struct_value () [concrete]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.258 [symbolic_self]
-// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.258, @I [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.92b [symbolic_self]
+// CHECK:STDOUT:   %I.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.92b, @I [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %I.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %U: %I_where.type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %PeriodMember.type: type = fn_type @PeriodMember [concrete]
 // CHECK:STDOUT:   %PeriodMember: %PeriodMember.type = struct_value () [concrete]
 // CHECK:STDOUT:   %type_where: type = facet_type <type where .Self impls @I> [concrete]
 // CHECK:STDOUT:   %V: %type_where = bind_symbolic_name V, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.2b5: type = pattern_type %type_where [concrete]
+// CHECK:STDOUT:   %pattern_type.824: type = pattern_type %type_where [concrete]
 // CHECK:STDOUT:   %TypeSelfImpls.type: type = fn_type @TypeSelfImpls [concrete]
 // CHECK:STDOUT:   %TypeSelfImpls: %TypeSelfImpls.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -165,13 +165,13 @@ fn G(T:! type where C(()) impls I(.Self)) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %PeriodSelf.decl: %PeriodSelf.type = fn_decl @PeriodSelf [concrete = constants.%PeriodSelf] {
-// CHECK:STDOUT:     %T.patt: %pattern_type.f03 = symbolic_binding_pattern T, 0 [concrete]
+// CHECK:STDOUT:     %T.patt: %pattern_type.fc3 = symbolic_binding_pattern T, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc9_21.1: type = splice_block %.loc9_21.2 [concrete = constants.%I_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %.loc9_37: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc9_21.2: type = where_expr %.Self.2 [concrete = constants.%I_where.type] {
 // CHECK:STDOUT:         requirement_base_facet_type constants.%I.type
@@ -181,13 +181,13 @@ fn G(T:! type where C(()) impls I(.Self)) {}
 // CHECK:STDOUT:     %T.loc9_15.2: %I_where.type = bind_symbolic_name T, 0 [symbolic = %T.loc9_15.1 (constants.%T)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %PeriodMember.decl: %PeriodMember.type = fn_decl @PeriodMember [concrete = constants.%PeriodMember] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.f03 = symbolic_binding_pattern U, 0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.fc3 = symbolic_binding_pattern U, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc11_23.1: type = splice_block %.loc11_23.2 [concrete = constants.%I_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.258]
+// CHECK:STDOUT:       %.Self.ref: %I.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.92b]
 // CHECK:STDOUT:       %Member.ref: %I.assoc_type = name_ref Member, @Member.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc11_29: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -201,7 +201,7 @@ fn G(T:! type where C(()) impls I(.Self)) {}
 // CHECK:STDOUT:     %U.loc11_17.2: %I_where.type = bind_symbolic_name U, 0 [symbolic = %U.loc11_17.1 (constants.%U)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %TypeSelfImpls.decl: %TypeSelfImpls.type = fn_decl @TypeSelfImpls [concrete = constants.%TypeSelfImpls] {
-// CHECK:STDOUT:     %V.patt: %pattern_type.2b5 = symbolic_binding_pattern V, 0 [concrete]
+// CHECK:STDOUT:     %V.patt: %pattern_type.824 = symbolic_binding_pattern V, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc13_27.1: type = splice_block %.loc13_27.2 [concrete = constants.%type_where] {
 // CHECK:STDOUT:       <elided>
diff --git a/toolchain/check/testdata/where_expr/dot_self_index.carbon b/toolchain/check/testdata/where_expr/dot_self_index.carbon
index b5f626d5d897..a55ee847a496 100644
--- a/toolchain/check/testdata/where_expr/dot_self_index.carbon
+++ b/toolchain/check/testdata/where_expr/dot_self_index.carbon
@@ -32,35 +32,35 @@ fn G(U: Empty(i32) where .A = i32*) {
 // CHECK:STDOUT:   %Empty.type.d5a: type = generic_interface_type @Empty [concrete]
 // CHECK:STDOUT:   %Empty.generic: %Empty.type.d5a = struct_value () [concrete]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
-// CHECK:STDOUT:   %Empty.type.3e5fde.2: type = facet_type <@Empty, @Empty(%T)> [symbolic]
-// CHECK:STDOUT:   %.Self.c95: %Empty.type.3e5fde.2 = bind_symbolic_name .Self [symbolic]
+// CHECK:STDOUT:   %Empty.type.1794c0.2: type = facet_type <@Empty, @Empty(%T)> [symbolic]
+// CHECK:STDOUT:   %.Self.fb8: %Empty.type.1794c0.2 = bind_symbolic_name .Self [symbolic]
 // CHECK:STDOUT:   %Empty.assoc_type.3cf698.2: type = assoc_entity_type @Empty, @Empty(%T) [symbolic]
 // CHECK:STDOUT:   %assoc0.3715ce.2: %Empty.assoc_type.3cf698.2 = assoc_entity element0, @Empty.%A [symbolic]
-// CHECK:STDOUT:   %require_complete.22f: <witness> = require_complete_type %Empty.type.3e5fde.2 [symbolic]
-// CHECK:STDOUT:   %.Self.as_type.a75: type = facet_access_type %.Self.c95 [symbolic]
-// CHECK:STDOUT:   %Empty.lookup_impl_witness.b1d: <witness> = lookup_impl_witness %.Self.c95, @Empty, @Empty(%T) [symbolic]
-// CHECK:STDOUT:   %impl.elem0.c6e: type = impl_witness_access %Empty.lookup_impl_witness.b1d, element0 [symbolic]
+// CHECK:STDOUT:   %require_complete.a27: <witness> = require_complete_type %Empty.type.1794c0.2 [symbolic]
+// CHECK:STDOUT:   %.Self.as_type.2a4: type = facet_access_type %.Self.fb8 [symbolic]
+// CHECK:STDOUT:   %Empty.lookup_impl_witness.3a4: <witness> = lookup_impl_witness %.Self.fb8, @Empty, @Empty(%T) [symbolic]
+// CHECK:STDOUT:   %impl.elem0.712: type = impl_witness_access %Empty.lookup_impl_witness.3a4, element0 [symbolic]
 // CHECK:STDOUT:   %ptr.79f: type = ptr_type %T [symbolic]
-// CHECK:STDOUT:   %Empty_where.type.b73: type = facet_type <@Empty, @Empty(%T) where %impl.elem0.c6e = %ptr.79f> [symbolic]
-// CHECK:STDOUT:   %pattern_type.668: type = pattern_type %Empty_where.type.b73 [symbolic]
+// CHECK:STDOUT:   %Empty_where.type.84a: type = facet_type <@Empty, @Empty(%T) where %impl.elem0.712 = %ptr.79f> [symbolic]
+// CHECK:STDOUT:   %pattern_type.022: type = pattern_type %Empty_where.type.84a [symbolic]
 // CHECK:STDOUT:   %V: type = bind_symbolic_name V, 1 [symbolic]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [concrete]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [concrete]
-// CHECK:STDOUT:   %require_complete.af8: <witness> = require_complete_type %Empty_where.type.b73 [symbolic]
+// CHECK:STDOUT:   %require_complete.814: <witness> = require_complete_type %Empty_where.type.84a [symbolic]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
-// CHECK:STDOUT:   %Empty.type.f0b: type = facet_type <@Empty, @Empty(%i32)> [concrete]
-// CHECK:STDOUT:   %.Self.e6e: %Empty.type.f0b = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %Empty.type.a21: type = facet_type <@Empty, @Empty(%i32)> [concrete]
+// CHECK:STDOUT:   %.Self.f1a: %Empty.type.a21 = bind_symbolic_name .Self [symbolic_self]
 // CHECK:STDOUT:   %Empty.assoc_type.7c7: type = assoc_entity_type @Empty, @Empty(%i32) [concrete]
 // CHECK:STDOUT:   %assoc0.758: %Empty.assoc_type.7c7 = assoc_entity element0, @Empty.%A [concrete]
-// CHECK:STDOUT:   %.Self.as_type.920: type = facet_access_type %.Self.e6e [symbolic_self]
-// CHECK:STDOUT:   %Empty.lookup_impl_witness.4e3: <witness> = lookup_impl_witness %.Self.e6e, @Empty, @Empty(%i32) [symbolic_self]
-// CHECK:STDOUT:   %impl.elem0.64a: type = impl_witness_access %Empty.lookup_impl_witness.4e3, element0 [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type.160: type = facet_access_type %.Self.f1a [symbolic_self]
+// CHECK:STDOUT:   %Empty.lookup_impl_witness.3c1: <witness> = lookup_impl_witness %.Self.f1a, @Empty, @Empty(%i32) [symbolic_self]
+// CHECK:STDOUT:   %impl.elem0.223: type = impl_witness_access %Empty.lookup_impl_witness.3c1, element0 [symbolic_self]
 // CHECK:STDOUT:   %ptr.235: type = ptr_type %i32 [concrete]
-// CHECK:STDOUT:   %Empty_where.type.fc2: type = facet_type <@Empty, @Empty(%i32) where %impl.elem0.64a = %ptr.235> [concrete]
-// CHECK:STDOUT:   %pattern_type.012: type = pattern_type %Empty_where.type.fc2 [concrete]
-// CHECK:STDOUT:   %complete_type.091: <witness> = complete_type_witness %Empty.type.f0b [concrete]
-// CHECK:STDOUT:   %complete_type.a3f: <witness> = complete_type_witness %Empty_where.type.fc2 [concrete]
+// CHECK:STDOUT:   %Empty_where.type.da4: type = facet_type <@Empty, @Empty(%i32) where %impl.elem0.223 = %ptr.235> [concrete]
+// CHECK:STDOUT:   %pattern_type.7db: type = pattern_type %Empty_where.type.da4 [concrete]
+// CHECK:STDOUT:   %complete_type.4ae: <witness> = complete_type_witness %Empty.type.a21 [concrete]
+// CHECK:STDOUT:   %complete_type.a36: <witness> = complete_type_witness %Empty_where.type.da4 [concrete]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -69,32 +69,32 @@ fn G(U: Empty(i32) where .A = i32*) {
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %H.decl: %H.type = fn_decl @H [concrete = constants.%H] {
 // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
-// CHECK:STDOUT:     %U.patt: @H.%pattern_type (%pattern_type.668) = binding_pattern U [concrete]
-// CHECK:STDOUT:     %U.param_patt: @H.%pattern_type (%pattern_type.668) = value_param_pattern %U.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: @H.%pattern_type (%pattern_type.022) = binding_pattern U [concrete]
+// CHECK:STDOUT:     %U.param_patt: @H.%pattern_type (%pattern_type.022) = value_param_pattern %U.patt, call_param0 [concrete]
 // CHECK:STDOUT:     %V.patt: %pattern_type.98f = symbolic_binding_pattern V, 1 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:     %T.loc21_6.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc21_6.1 (constants.%T)]
-// CHECK:STDOUT:     %U.param: @H.%Empty_where.type (%Empty_where.type.b73) = value_param call_param0
-// CHECK:STDOUT:     %.loc21_28.1: type = splice_block %.loc21_28.2 [symbolic = %Empty_where.type (constants.%Empty_where.type.b73)] {
+// CHECK:STDOUT:     %U.param: @H.%Empty_where.type (%Empty_where.type.84a) = value_param call_param0
+// CHECK:STDOUT:     %.loc21_28.1: type = splice_block %.loc21_28.2 [symbolic = %Empty_where.type (constants.%Empty_where.type.84a)] {
 // CHECK:STDOUT:       %Empty.ref: %Empty.type.d5a = name_ref Empty, file.%Empty.decl [concrete = constants.%Empty.generic]
 // CHECK:STDOUT:       %T.ref.loc21_25: type = name_ref T, %T.loc21_6.2 [symbolic = %T.loc21_6.1 (constants.%T)]
-// CHECK:STDOUT:       %Empty.type.loc21_26.2: type = facet_type <@Empty, @Empty(constants.%T)> [symbolic = %Empty.type.loc21_26.1 (constants.%Empty.type.3e5fde.2)]
+// CHECK:STDOUT:       %Empty.type.loc21_26.2: type = facet_type <@Empty, @Empty(constants.%T)> [symbolic = %Empty.type.loc21_26.1 (constants.%Empty.type.1794c0.2)]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: @H.%Empty.type.loc21_26.1 (%Empty.type.3e5fde.2) = name_ref .Self, %.Self.4 [symbolic = %.Self.1 (constants.%.Self.c95)]
+// CHECK:STDOUT:       %.Self.ref: @H.%Empty.type.loc21_26.1 (%Empty.type.1794c0.2) = name_ref .Self, %.Self.4 [symbolic = %.Self.1 (constants.%.Self.fb8)]
 // CHECK:STDOUT:       %.loc21_34.1: @H.%Empty.assoc_type (%Empty.assoc_type.3cf698.2) = specific_constant @A.%assoc0, @Empty(constants.%T) [symbolic = %assoc0 (constants.%assoc0.3715ce.2)]
 // CHECK:STDOUT:       %A.ref: @H.%Empty.assoc_type (%Empty.assoc_type.3cf698.2) = name_ref A, %.loc21_34.1 [symbolic = %assoc0 (constants.%assoc0.3715ce.2)]
-// CHECK:STDOUT:       %.Self.as_type.loc21_34.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc21_34.1 (constants.%.Self.as_type.a75)]
-// CHECK:STDOUT:       %.loc21_34.2: type = converted %.Self.ref, %.Self.as_type.loc21_34.2 [symbolic = %.Self.as_type.loc21_34.1 (constants.%.Self.as_type.a75)]
-// CHECK:STDOUT:       %impl.elem0.loc21_34.2: type = impl_witness_access constants.%Empty.lookup_impl_witness.b1d, element0 [symbolic = %impl.elem0.loc21_34.1 (constants.%impl.elem0.c6e)]
+// CHECK:STDOUT:       %.Self.as_type.loc21_34.2: type = facet_access_type %.Self.ref [symbolic = %.Self.as_type.loc21_34.1 (constants.%.Self.as_type.2a4)]
+// CHECK:STDOUT:       %.loc21_34.2: type = converted %.Self.ref, %.Self.as_type.loc21_34.2 [symbolic = %.Self.as_type.loc21_34.1 (constants.%.Self.as_type.2a4)]
+// CHECK:STDOUT:       %impl.elem0.loc21_34.2: type = impl_witness_access constants.%Empty.lookup_impl_witness.3a4, element0 [symbolic = %impl.elem0.loc21_34.1 (constants.%impl.elem0.712)]
 // CHECK:STDOUT:       %T.ref.loc21_39: type = name_ref T, %T.loc21_6.2 [symbolic = %T.loc21_6.1 (constants.%T)]
 // CHECK:STDOUT:       %ptr.loc21_40.2: type = ptr_type %T.ref.loc21_39 [symbolic = %ptr.loc21_40.1 (constants.%ptr.79f)]
-// CHECK:STDOUT:       %.loc21_28.2: type = where_expr %.Self.4 [symbolic = %Empty_where.type (constants.%Empty_where.type.b73)] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%Empty.type.3e5fde.2
+// CHECK:STDOUT:       %.loc21_28.2: type = where_expr %.Self.4 [symbolic = %Empty_where.type (constants.%Empty_where.type.84a)] {
+// CHECK:STDOUT:         requirement_base_facet_type constants.%Empty.type.1794c0.2
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0.loc21_34.2, %ptr.loc21_40.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %U: @H.%Empty_where.type (%Empty_where.type.b73) = bind_name U, %U.param
+// CHECK:STDOUT:     %U: @H.%Empty_where.type (%Empty_where.type.84a) = bind_name U, %U.param
 // CHECK:STDOUT:     <elided>
 // CHECK:STDOUT:     %V.loc21_43.2: type = bind_symbolic_name V, 1 [symbolic = %V.loc21_43.1 (constants.%V)]
 // CHECK:STDOUT:   }
@@ -102,23 +102,23 @@ fn G(U: Empty(i32) where .A = i32*) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: generic fn @H(%T.loc21_6.2: type, %V.loc21_43.2: type) {
 // CHECK:STDOUT:   %T.loc21_6.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc21_6.1 (constants.%T)]
-// CHECK:STDOUT:   %Empty.type.loc21_26.1: type = facet_type <@Empty, @Empty(%T.loc21_6.1)> [symbolic = %Empty.type.loc21_26.1 (constants.%Empty.type.3e5fde.2)]
+// CHECK:STDOUT:   %Empty.type.loc21_26.1: type = facet_type <@Empty, @Empty(%T.loc21_6.1)> [symbolic = %Empty.type.loc21_26.1 (constants.%Empty.type.1794c0.2)]
 // CHECK:STDOUT:   <elided>
-// CHECK:STDOUT:   %require_complete.loc21_34: <witness> = require_complete_type %Empty.type.loc21_26.1 [symbolic = %require_complete.loc21_34 (constants.%require_complete.22f)]
+// CHECK:STDOUT:   %require_complete.loc21_34: <witness> = require_complete_type %Empty.type.loc21_26.1 [symbolic = %require_complete.loc21_34 (constants.%require_complete.a27)]
 // CHECK:STDOUT:   %Empty.assoc_type: type = assoc_entity_type @Empty, @Empty(%T.loc21_6.1) [symbolic = %Empty.assoc_type (constants.%Empty.assoc_type.3cf698.2)]
 // CHECK:STDOUT:   %assoc0: @H.%Empty.assoc_type (%Empty.assoc_type.3cf698.2) = assoc_entity element0, @Empty.%A [symbolic = %assoc0 (constants.%assoc0.3715ce.2)]
-// CHECK:STDOUT:   %.Self.as_type.loc21_34.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc21_34.1 (constants.%.Self.as_type.a75)]
-// CHECK:STDOUT:   %Empty.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @Empty, @Empty(%T.loc21_6.1) [symbolic = %Empty.lookup_impl_witness (constants.%Empty.lookup_impl_witness.b1d)]
-// CHECK:STDOUT:   %impl.elem0.loc21_34.1: type = impl_witness_access %Empty.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc21_34.1 (constants.%impl.elem0.c6e)]
+// CHECK:STDOUT:   %.Self.as_type.loc21_34.1: type = facet_access_type %.Self.1 [symbolic = %.Self.as_type.loc21_34.1 (constants.%.Self.as_type.2a4)]
+// CHECK:STDOUT:   %Empty.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.1, @Empty, @Empty(%T.loc21_6.1) [symbolic = %Empty.lookup_impl_witness (constants.%Empty.lookup_impl_witness.3a4)]
+// CHECK:STDOUT:   %impl.elem0.loc21_34.1: type = impl_witness_access %Empty.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc21_34.1 (constants.%impl.elem0.712)]
 // CHECK:STDOUT:   %ptr.loc21_40.1: type = ptr_type %T.loc21_6.1 [symbolic = %ptr.loc21_40.1 (constants.%ptr.79f)]
-// CHECK:STDOUT:   %Empty_where.type: type = facet_type <@Empty, @Empty(%T.loc21_6.1) where %impl.elem0.loc21_34.1 = %ptr.loc21_40.1> [symbolic = %Empty_where.type (constants.%Empty_where.type.b73)]
-// CHECK:STDOUT:   %pattern_type: type = pattern_type %Empty_where.type [symbolic = %pattern_type (constants.%pattern_type.668)]
+// CHECK:STDOUT:   %Empty_where.type: type = facet_type <@Empty, @Empty(%T.loc21_6.1) where %impl.elem0.loc21_34.1 = %ptr.loc21_40.1> [symbolic = %Empty_where.type (constants.%Empty_where.type.84a)]
+// CHECK:STDOUT:   %pattern_type: type = pattern_type %Empty_where.type [symbolic = %pattern_type (constants.%pattern_type.022)]
 // CHECK:STDOUT:   %V.loc21_43.1: type = bind_symbolic_name V, 1 [symbolic = %V.loc21_43.1 (constants.%V)]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc21_17: <witness> = require_complete_type %Empty_where.type [symbolic = %require_complete.loc21_17 (constants.%require_complete.af8)]
+// CHECK:STDOUT:   %require_complete.loc21_17: <witness> = require_complete_type %Empty_where.type [symbolic = %require_complete.loc21_17 (constants.%require_complete.814)]
 // CHECK:STDOUT:
-// CHECK:STDOUT:   fn(%U.param: @H.%Empty_where.type (%Empty_where.type.b73)) {
+// CHECK:STDOUT:   fn(%U.param: @H.%Empty_where.type (%Empty_where.type.84a)) {
 // CHECK:STDOUT:   !entry:
 // CHECK:STDOUT:     return
 // CHECK:STDOUT:   }
@@ -126,36 +126,36 @@ fn G(U: Empty(i32) where .A = i32*) {
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @H(constants.%T, constants.%V) {
 // CHECK:STDOUT:   %T.loc21_6.1 => constants.%T
-// CHECK:STDOUT:   %Empty.type.loc21_26.1 => constants.%Empty.type.3e5fde.2
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.c95
-// CHECK:STDOUT:   %require_complete.loc21_34 => constants.%require_complete.22f
+// CHECK:STDOUT:   %Empty.type.loc21_26.1 => constants.%Empty.type.1794c0.2
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.fb8
+// CHECK:STDOUT:   %require_complete.loc21_34 => constants.%require_complete.a27
 // CHECK:STDOUT:   %Empty.assoc_type => constants.%Empty.assoc_type.3cf698.2
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.3715ce.2
-// CHECK:STDOUT:   %.Self.as_type.loc21_34.1 => constants.%.Self.as_type.a75
-// CHECK:STDOUT:   %Empty.lookup_impl_witness => constants.%Empty.lookup_impl_witness.b1d
-// CHECK:STDOUT:   %impl.elem0.loc21_34.1 => constants.%impl.elem0.c6e
+// CHECK:STDOUT:   %.Self.as_type.loc21_34.1 => constants.%.Self.as_type.2a4
+// CHECK:STDOUT:   %Empty.lookup_impl_witness => constants.%Empty.lookup_impl_witness.3a4
+// CHECK:STDOUT:   %impl.elem0.loc21_34.1 => constants.%impl.elem0.712
 // CHECK:STDOUT:   %ptr.loc21_40.1 => constants.%ptr.79f
-// CHECK:STDOUT:   %Empty_where.type => constants.%Empty_where.type.b73
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.668
+// CHECK:STDOUT:   %Empty_where.type => constants.%Empty_where.type.84a
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.022
 // CHECK:STDOUT:   %V.loc21_43.1 => constants.%V
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @H(constants.%i32, bool) {
 // CHECK:STDOUT:   %T.loc21_6.1 => constants.%i32
-// CHECK:STDOUT:   %Empty.type.loc21_26.1 => constants.%Empty.type.f0b
-// CHECK:STDOUT:   %.Self.1 => constants.%.Self.e6e
-// CHECK:STDOUT:   %require_complete.loc21_34 => constants.%complete_type.091
+// CHECK:STDOUT:   %Empty.type.loc21_26.1 => constants.%Empty.type.a21
+// CHECK:STDOUT:   %.Self.1 => constants.%.Self.f1a
+// CHECK:STDOUT:   %require_complete.loc21_34 => constants.%complete_type.4ae
 // CHECK:STDOUT:   %Empty.assoc_type => constants.%Empty.assoc_type.7c7
 // CHECK:STDOUT:   %assoc0 => constants.%assoc0.758
-// CHECK:STDOUT:   %.Self.as_type.loc21_34.1 => constants.%.Self.as_type.920
-// CHECK:STDOUT:   %Empty.lookup_impl_witness => constants.%Empty.lookup_impl_witness.4e3
-// CHECK:STDOUT:   %impl.elem0.loc21_34.1 => constants.%impl.elem0.64a
+// CHECK:STDOUT:   %.Self.as_type.loc21_34.1 => constants.%.Self.as_type.160
+// CHECK:STDOUT:   %Empty.lookup_impl_witness => constants.%Empty.lookup_impl_witness.3c1
+// CHECK:STDOUT:   %impl.elem0.loc21_34.1 => constants.%impl.elem0.223
 // CHECK:STDOUT:   %ptr.loc21_40.1 => constants.%ptr.235
-// CHECK:STDOUT:   %Empty_where.type => constants.%Empty_where.type.fc2
-// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.012
+// CHECK:STDOUT:   %Empty_where.type => constants.%Empty_where.type.da4
+// CHECK:STDOUT:   %pattern_type => constants.%pattern_type.7db
 // CHECK:STDOUT:   %V.loc21_43.1 => bool
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %require_complete.loc21_17 => constants.%complete_type.a3f
+// CHECK:STDOUT:   %require_complete.loc21_17 => constants.%complete_type.a36
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/where_expr/equal_rewrite.carbon b/toolchain/check/testdata/where_expr/equal_rewrite.carbon
index 094118ecfe17..130f211fb8b2 100644
--- a/toolchain/check/testdata/where_expr/equal_rewrite.carbon
+++ b/toolchain/check/testdata/where_expr/equal_rewrite.carbon
@@ -225,9 +225,9 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:   %N.type: type = facet_type <@N> [concrete]
 // CHECK:STDOUT:   %N.assoc_type: type = assoc_entity_type @N [concrete]
 // CHECK:STDOUT:   %assoc0: %N.assoc_type = assoc_entity element0, @N.%P [concrete]
-// CHECK:STDOUT:   %.Self.9aa: %N.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.9aa [symbolic_self]
-// CHECK:STDOUT:   %N.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.9aa, @N [symbolic_self]
+// CHECK:STDOUT:   %.Self.231: %N.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.231 [symbolic_self]
+// CHECK:STDOUT:   %N.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.231, @N [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %N.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
 // CHECK:STDOUT:   %N_where.type: type = facet_type <@N where %impl.elem0 = %empty_struct_type> [concrete]
@@ -248,7 +248,7 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %N.ref: type = name_ref N, file.%N.decl [concrete = constants.%N.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %N.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.9aa]
+// CHECK:STDOUT:       %.Self.ref: %N.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.231]
 // CHECK:STDOUT:       %P.ref: %N.assoc_type = name_ref P, @P.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc9_22: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -281,18 +281,18 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:   %A.assoc_type: type = assoc_entity_type @A [concrete]
 // CHECK:STDOUT:   %assoc0: %A.assoc_type = assoc_entity element0, @A.%B [concrete]
 // CHECK:STDOUT:   %assoc1: %A.assoc_type = assoc_entity element1, @A.%C [concrete]
-// CHECK:STDOUT:   %.Self.3ca: %A.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.3ca [symbolic_self]
-// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.3ca, @A [symbolic_self]
+// CHECK:STDOUT:   %.Self.e6d: %A.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.e6d [symbolic_self]
+// CHECK:STDOUT:   %A.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.e6d, @A [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %A.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
-// CHECK:STDOUT:   %A_where.type.ef7: type = facet_type <@A where %impl.elem0 = bool> [concrete]
+// CHECK:STDOUT:   %A_where.type.329: type = facet_type <@A where %impl.elem0 = bool> [concrete]
 // CHECK:STDOUT:   %impl.elem1: type = impl_witness_access %A.lookup_impl_witness, element1 [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
-// CHECK:STDOUT:   %A_where.type.7c3: type = facet_type <@A where %impl.elem0 = bool and %impl.elem1 = %empty_tuple.type> [concrete]
-// CHECK:STDOUT:   %D: %A_where.type.7c3 = bind_symbolic_name D, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.e7b: type = pattern_type %A_where.type.7c3 [concrete]
+// CHECK:STDOUT:   %A_where.type.358: type = facet_type <@A where %impl.elem0 = bool and %impl.elem1 = %empty_tuple.type> [concrete]
+// CHECK:STDOUT:   %D: %A_where.type.358 = bind_symbolic_name D, 0 [symbolic]
+// CHECK:STDOUT:   %pattern_type.196: type = pattern_type %A_where.type.358 [concrete]
 // CHECK:STDOUT:   %NestedRewrite.type: type = fn_type @NestedRewrite [concrete]
 // CHECK:STDOUT:   %NestedRewrite: %NestedRewrite.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -302,13 +302,13 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %NestedRewrite.decl: %NestedRewrite.type = fn_decl @NestedRewrite [concrete = constants.%NestedRewrite] {
-// CHECK:STDOUT:     %D.patt: %pattern_type.e7b = symbolic_binding_pattern D, 0 [concrete]
+// CHECK:STDOUT:     %D.patt: %pattern_type.196 = symbolic_binding_pattern D, 0 [concrete]
 // CHECK:STDOUT:   } {
-// CHECK:STDOUT:     %.loc10_42.1: type = splice_block %.loc10_42.2 [concrete = constants.%A_where.type.7c3] {
+// CHECK:STDOUT:     %.loc10_42.1: type = splice_block %.loc10_42.2 [concrete = constants.%A_where.type.358] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc10_31: %A.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.3ca]
+// CHECK:STDOUT:       %.Self.ref.loc10_31: %A.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.e6d]
 // CHECK:STDOUT:       %B.ref: %A.assoc_type = name_ref B, @B.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc10_31: type = facet_access_type %.Self.ref.loc10_31 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc10_31: type = converted %.Self.ref.loc10_31, %.Self.as_type.loc10_31 [symbolic_self = constants.%.Self.as_type]
@@ -316,29 +316,29 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:       %Bool.call: init type = call constants.%Bool() [concrete = bool]
 // CHECK:STDOUT:       %.loc10_36.1: type = value_of_initializer %Bool.call [concrete = bool]
 // CHECK:STDOUT:       %.loc10_36.2: type = converted %Bool.call, %.loc10_36.1 [concrete = bool]
-// CHECK:STDOUT:       %.loc10_25: type = where_expr %.Self.2 [concrete = constants.%A_where.type.ef7] {
+// CHECK:STDOUT:       %.loc10_25: type = where_expr %.Self.2 [concrete = constants.%A_where.type.329] {
 // CHECK:STDOUT:         requirement_base_facet_type constants.%A.type
 // CHECK:STDOUT:         requirement_rewrite %impl.elem0, %.loc10_36.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc10_48: %A.type = name_ref .Self, %.Self.3 [symbolic_self = constants.%.Self.3ca]
+// CHECK:STDOUT:       %.Self.ref.loc10_48: %A.type = name_ref .Self, %.Self.3 [symbolic_self = constants.%.Self.e6d]
 // CHECK:STDOUT:       %C.ref: %A.assoc_type = name_ref C, @C.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:       %.Self.as_type.loc10_48: type = facet_access_type %.Self.ref.loc10_48 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc10_48: type = converted %.Self.ref.loc10_48, %.Self.as_type.loc10_48 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem1: type = impl_witness_access constants.%A.lookup_impl_witness, element1 [symbolic_self = constants.%impl.elem1]
 // CHECK:STDOUT:       %.loc10_54.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc10_54.2: type = converted %.loc10_54.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %.loc10_42.2: type = where_expr %.Self.3 [concrete = constants.%A_where.type.7c3] {
-// CHECK:STDOUT:         requirement_base_facet_type constants.%A_where.type.ef7
+// CHECK:STDOUT:       %.loc10_42.2: type = where_expr %.Self.3 [concrete = constants.%A_where.type.358] {
+// CHECK:STDOUT:         requirement_base_facet_type constants.%A_where.type.329
 // CHECK:STDOUT:         requirement_rewrite %impl.elem1, %.loc10_54.2
 // CHECK:STDOUT:       }
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %D.loc10_18.2: %A_where.type.7c3 = bind_symbolic_name D, 0 [symbolic = %D.loc10_18.1 (constants.%D)]
+// CHECK:STDOUT:     %D.loc10_18.2: %A_where.type.358 = bind_symbolic_name D, 0 [symbolic = %D.loc10_18.1 (constants.%D)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: generic fn @NestedRewrite(%D.loc10_18.2: %A_where.type.7c3) {
-// CHECK:STDOUT:   %D.loc10_18.1: %A_where.type.7c3 = bind_symbolic_name D, 0 [symbolic = %D.loc10_18.1 (constants.%D)]
+// CHECK:STDOUT: generic fn @NestedRewrite(%D.loc10_18.2: %A_where.type.358) {
+// CHECK:STDOUT:   %D.loc10_18.1: %A_where.type.358 = bind_symbolic_name D, 0 [symbolic = %D.loc10_18.1 (constants.%D)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn();
 // CHECK:STDOUT: }
@@ -353,22 +353,22 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:   %E.type: type = facet_type <@E> [concrete]
 // CHECK:STDOUT:   %E.assoc_type: type = assoc_entity_type @E [concrete]
 // CHECK:STDOUT:   %assoc0: %E.assoc_type = assoc_entity element0, @E.%F [concrete]
-// CHECK:STDOUT:   %.Self.da5: %E.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.da5 [symbolic_self]
-// CHECK:STDOUT:   %E.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.da5, @E [symbolic_self]
+// CHECK:STDOUT:   %.Self.96d: %E.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.96d [symbolic_self]
+// CHECK:STDOUT:   %E.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.96d, @E [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %E.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %E_where.type: type = facet_type <@E where %impl.elem0 = %i32> [concrete]
 // CHECK:STDOUT:   %G: %E_where.type = bind_symbolic_name G, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.c64: type = pattern_type %E_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.e28: type = pattern_type %E_where.type [concrete]
 // CHECK:STDOUT:   %OneRewrite.type: type = fn_type @OneRewrite [concrete]
 // CHECK:STDOUT:   %OneRewrite: %OneRewrite.type = struct_value () [concrete]
 // CHECK:STDOUT:   %H: %E_where.type = bind_symbolic_name H, 0 [symbolic]
 // CHECK:STDOUT:   %RepeatedRewrite.type: type = fn_type @RepeatedRewrite [concrete]
 // CHECK:STDOUT:   %RepeatedRewrite: %RepeatedRewrite.type = struct_value () [concrete]
 // CHECK:STDOUT:   %I: %E_where.type = bind_symbolic_name I, 0 [symbolic]
-// CHECK:STDOUT:   %OneRewrite.specific_fn.7fa5d5.2: <specific function> = specific_function %OneRewrite, @OneRewrite(%I) [symbolic]
+// CHECK:STDOUT:   %OneRewrite.specific_fn.22e3a4.2: <specific function> = specific_function %OneRewrite, @OneRewrite(%I) [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -376,13 +376,13 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %OneRewrite.decl: %OneRewrite.type = fn_decl @OneRewrite [concrete = constants.%OneRewrite] {
-// CHECK:STDOUT:     %G.patt: %pattern_type.c64 = symbolic_binding_pattern G, 0 [concrete]
+// CHECK:STDOUT:     %G.patt: %pattern_type.e28 = symbolic_binding_pattern G, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc9_21.1: type = splice_block %.loc9_21.2 [concrete = constants.%E_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %E.ref: type = name_ref E, file.%E.decl [concrete = constants.%E.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref: %E.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.da5]
+// CHECK:STDOUT:       %.Self.ref: %E.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.96d]
 // CHECK:STDOUT:       %F.ref: %E.assoc_type = name_ref F, @F.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc9_27: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
@@ -397,20 +397,20 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:     %G.loc9_15.2: %E_where.type = bind_symbolic_name G, 0 [symbolic = %G.loc9_15.1 (constants.%G)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %RepeatedRewrite.decl: %RepeatedRewrite.type = fn_decl @RepeatedRewrite [concrete = constants.%RepeatedRewrite] {
-// CHECK:STDOUT:     %H.patt: %pattern_type.c64 = symbolic_binding_pattern H, 0 [concrete]
+// CHECK:STDOUT:     %H.patt: %pattern_type.e28 = symbolic_binding_pattern H, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc11_26.1: type = splice_block %.loc11_26.2 [concrete = constants.%E_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %E.ref: type = name_ref E, file.%E.decl [concrete = constants.%E.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc11_32: %E.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.da5]
+// CHECK:STDOUT:       %.Self.ref.loc11_32: %E.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.96d]
 // CHECK:STDOUT:       %F.ref.loc11_32: %E.assoc_type = name_ref F, @F.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc11_32: type = facet_access_type %.Self.ref.loc11_32 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc11_32: type = converted %.Self.ref.loc11_32, %.Self.as_type.loc11_32 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem0.loc11_32: type = impl_witness_access constants.%E.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:       %int_32.loc11_37: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
 // CHECK:STDOUT:       %i32.loc11_37: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
-// CHECK:STDOUT:       %.Self.ref.loc11_45: %E.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.da5]
+// CHECK:STDOUT:       %.Self.ref.loc11_45: %E.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.96d]
 // CHECK:STDOUT:       %F.ref.loc11_45: %E.assoc_type = name_ref F, @F.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc11_45: type = facet_access_type %.Self.ref.loc11_45 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc11_45: type = converted %.Self.ref.loc11_45, %.Self.as_type.loc11_45 [symbolic_self = constants.%.Self.as_type]
@@ -469,7 +469,7 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:   %H.loc11_20.1 => constants.%I
 // CHECK:STDOUT:
 // CHECK:STDOUT: !definition:
-// CHECK:STDOUT:   %OneRewrite.specific_fn.loc13_3.2 => constants.%OneRewrite.specific_fn.7fa5d5.2
+// CHECK:STDOUT:   %OneRewrite.specific_fn.loc13_3.2 => constants.%OneRewrite.specific_fn.22e3a4.2
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: specific @OneRewrite(constants.%I) {
@@ -485,9 +485,9 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:   %J.assoc_type: type = assoc_entity_type @J [concrete]
 // CHECK:STDOUT:   %assoc0: %J.assoc_type = assoc_entity element0, @J.%K [concrete]
 // CHECK:STDOUT:   %assoc1: %J.assoc_type = assoc_entity element1, @J.%L [concrete]
-// CHECK:STDOUT:   %.Self.968: %J.type = bind_symbolic_name .Self [symbolic_self]
-// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.968 [symbolic_self]
-// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.968, @J [symbolic_self]
+// CHECK:STDOUT:   %.Self.991: %J.type = bind_symbolic_name .Self [symbolic_self]
+// CHECK:STDOUT:   %.Self.as_type: type = facet_access_type %.Self.991 [symbolic_self]
+// CHECK:STDOUT:   %J.lookup_impl_witness: <witness> = lookup_impl_witness %.Self.991, @J [symbolic_self]
 // CHECK:STDOUT:   %impl.elem0: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic_self]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
 // CHECK:STDOUT:   %impl.elem1: type = impl_witness_access %J.lookup_impl_witness, element1 [symbolic_self]
@@ -495,7 +495,7 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
 // CHECK:STDOUT:   %J_where.type: type = facet_type <@J where %impl.elem0 = %empty_tuple.type and %impl.elem1 = bool> [concrete]
 // CHECK:STDOUT:   %M: %J_where.type = bind_symbolic_name M, 0 [symbolic]
-// CHECK:STDOUT:   %pattern_type.49f: type = pattern_type %J_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.b86: type = pattern_type %J_where.type [concrete]
 // CHECK:STDOUT:   %Alphabetical.type: type = fn_type @Alphabetical [concrete]
 // CHECK:STDOUT:   %Alphabetical: %Alphabetical.type = struct_value () [concrete]
 // CHECK:STDOUT:   %N: %J_where.type = bind_symbolic_name N, 0 [symbolic]
@@ -508,20 +508,20 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %Alphabetical.decl: %Alphabetical.type = fn_decl @Alphabetical [concrete = constants.%Alphabetical] {
-// CHECK:STDOUT:     %M.patt: %pattern_type.49f = symbolic_binding_pattern M, 0 [concrete]
+// CHECK:STDOUT:     %M.patt: %pattern_type.b86 = symbolic_binding_pattern M, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc10_23.1: type = splice_block %.loc10_23.2 [concrete = constants.%J_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc10_29: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:       %.Self.ref.loc10_29: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:       %K.ref: %J.assoc_type = name_ref K, @K.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc10_29: type = facet_access_type %.Self.ref.loc10_29 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc10_29: type = converted %.Self.ref.loc10_29, %.Self.as_type.loc10_29 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
 // CHECK:STDOUT:       %.loc10_35.1: %empty_tuple.type = tuple_literal ()
 // CHECK:STDOUT:       %.loc10_35.2: type = converted %.loc10_35.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
-// CHECK:STDOUT:       %.Self.ref.loc10_41: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:       %.Self.ref.loc10_41: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:       %L.ref: %J.assoc_type = name_ref L, @L.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:       %.Self.as_type.loc10_41: type = facet_access_type %.Self.ref.loc10_41 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc10_41: type = converted %.Self.ref.loc10_41, %.Self.as_type.loc10_41 [symbolic_self = constants.%.Self.as_type]
@@ -538,13 +538,13 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:     %M.loc10_17.2: %J_where.type = bind_symbolic_name M, 0 [symbolic = %M.loc10_17.1 (constants.%M)]
 // CHECK:STDOUT:   }
 // CHECK:STDOUT:   %Reversed.decl: %Reversed.type = fn_decl @Reversed [concrete = constants.%Reversed] {
-// CHECK:STDOUT:     %N.patt: %pattern_type.49f = symbolic_binding_pattern N, 0 [concrete]
+// CHECK:STDOUT:     %N.patt: %pattern_type.b86 = symbolic_binding_pattern N, 0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %.loc12_19.1: type = splice_block %.loc12_19.2 [concrete = constants.%J_where.type] {
 // CHECK:STDOUT:       <elided>
 // CHECK:STDOUT:       %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
 // CHECK:STDOUT:       <elided>
-// CHECK:STDOUT:       %.Self.ref.loc12_25: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:       %.Self.ref.loc12_25: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:       %L.ref: %J.assoc_type = name_ref L, @L.%assoc1 [concrete = constants.%assoc1]
 // CHECK:STDOUT:       %.Self.as_type.loc12_25: type = facet_access_type %.Self.ref.loc12_25 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc12_25: type = converted %.Self.ref.loc12_25, %.Self.as_type.loc12_25 [symbolic_self = constants.%.Self.as_type]
@@ -552,7 +552,7 @@ let K: (E where .F = .Self.G) = bool;
 // CHECK:STDOUT:       %Bool.call: init type = call constants.%Bool() [concrete = bool]
 // CHECK:STDOUT:       %.loc12_30.1: type = value_of_initializer %Bool.call [concrete = bool]
 // CHECK:STDOUT:       %.loc12_30.2: type = converted %Bool.call, %.loc12_30.1 [concrete = bool]
-// CHECK:STDOUT:       %.Self.ref.loc12_39: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.968]
+// CHECK:STDOUT:       %.Self.ref.loc12_39: %J.type = name_ref .Self, %.Self.2 [symbolic_self = constants.%.Self.991]
 // CHECK:STDOUT:       %K.ref: %J.assoc_type = name_ref K, @K.%assoc0 [concrete = constants.%assoc0]
 // CHECK:STDOUT:       %.Self.as_type.loc12_39: type = facet_access_type %.Self.ref.loc12_39 [symbolic_self = constants.%.Self.as_type]
 // CHECK:STDOUT:       %.loc12_39: type = converted %.Self.ref.loc12_39, %.Self.as_type.loc12_39 [symbolic_self = constants.%.Self.as_type]
diff --git a/toolchain/check/testdata/where_expr/non_generic.carbon b/toolchain/check/testdata/where_expr/non_generic.carbon
index 26f129e74890..f33f22903890 100644
--- a/toolchain/check/testdata/where_expr/non_generic.carbon
+++ b/toolchain/check/testdata/where_expr/non_generic.carbon
@@ -30,7 +30,7 @@ fn NotGenericF(U: I where .T == i32) {}
 // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
 // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
 // CHECK:STDOUT:   %I_where.type: type = facet_type <@I where TODO> [concrete]
-// CHECK:STDOUT:   %pattern_type.f03: type = pattern_type %I_where.type [concrete]
+// CHECK:STDOUT:   %pattern_type.fc3: type = pattern_type %I_where.type [concrete]
 // CHECK:STDOUT:   %NotGenericF.type: type = fn_type @NotGenericF [concrete]
 // CHECK:STDOUT:   %NotGenericF: %NotGenericF.type = struct_value () [concrete]
 // CHECK:STDOUT: }
@@ -40,8 +40,8 @@ fn NotGenericF(U: I where .T == i32) {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
 // CHECK:STDOUT:   %NotGenericF.decl: %NotGenericF.type = fn_decl @NotGenericF [concrete = constants.%NotGenericF] {
-// CHECK:STDOUT:     %U.patt: %pattern_type.f03 = binding_pattern U [concrete]
-// CHECK:STDOUT:     %U.param_patt: %pattern_type.f03 = value_param_pattern %U.patt, call_param0 [concrete]
+// CHECK:STDOUT:     %U.patt: %pattern_type.fc3 = binding_pattern U [concrete]
+// CHECK:STDOUT:     %U.param_patt: %pattern_type.fc3 = value_param_pattern %U.patt, call_param0 [concrete]
 // CHECK:STDOUT:   } {
 // CHECK:STDOUT:     %U.param: %I_where.type = value_param call_param0
 // CHECK:STDOUT:     %.loc17_21.1: type = splice_block %.loc17_21.2 [concrete = constants.%I_where.type] {
diff --git a/toolchain/lower/testdata/array/iterate.carbon b/toolchain/lower/testdata/array/iterate.carbon
index 50fc4cf91693..f3a6ffa74019 100644
--- a/toolchain/lower/testdata/array/iterate.carbon
+++ b/toolchain/lower/testdata/array/iterate.carbon
@@ -102,7 +102,7 @@ fn F() {
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: define linkonce_odr void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %self) !dbg !32 {
-// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.a6f9794233e6e547"(ptr %self, i32 1), !dbg !34
+// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.f86036ee2cd10fd3"(ptr %self, i32 1), !dbg !34
 // CHECK:STDOUT:   ret void, !dbg !35
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -120,7 +120,7 @@ fn F() {
 // CHECK:STDOUT:   ret void, !dbg !41
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.a6f9794233e6e547"(ptr %self, i32 %other) !dbg !42 {
+// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.f86036ee2cd10fd3"(ptr %self, i32 %other) !dbg !42 {
 // CHECK:STDOUT:   %1 = call i32 @"_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.1abd39b699024258"(i32 %other), !dbg !43
 // CHECK:STDOUT:   %2 = load i32, ptr %self, align 4, !dbg !44
 // CHECK:STDOUT:   %3 = add i32 %2, %1, !dbg !44
@@ -183,7 +183,7 @@ fn F() {
 // CHECK:STDOUT: !39 = distinct !DISubprogram(name: "None", linkageName: "_CNone.Optional.Core.b88d1103f417c6d4", scope: null, file: !26, line: 19, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !40 = !DILocation(line: 21, column: 5, scope: !39)
 // CHECK:STDOUT: !41 = !DILocation(line: 22, column: 5, scope: !39)
-// CHECK:STDOUT: !42 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.a6f9794233e6e547", scope: null, file: !33, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !42 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.f86036ee2cd10fd3", scope: null, file: !33, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !43 = !DILocation(line: 4294967295, scope: !42)
 // CHECK:STDOUT: !44 = !DILocation(line: 268, column: 3, scope: !42)
 // CHECK:STDOUT: !45 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.1abd39b699024258", scope: null, file: !46, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
diff --git a/toolchain/lower/testdata/for/break_continue.carbon b/toolchain/lower/testdata/for/break_continue.carbon
index 0da9411e6597..9535b23ac164 100644
--- a/toolchain/lower/testdata/for/break_continue.carbon
+++ b/toolchain/lower/testdata/for/break_continue.carbon
@@ -123,7 +123,7 @@ fn For() {
 // CHECK:STDOUT: declare void @_CInclusiveRange.Core(ptr sret({ i32, i32 }), i32, i32)
 // CHECK:STDOUT:
 // CHECK:STDOUT: define linkonce_odr void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %self) !dbg !41 {
-// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970"(ptr %self, i32 1), !dbg !43
+// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d"(ptr %self, i32 1), !dbg !43
 // CHECK:STDOUT:   ret void, !dbg !44
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -141,7 +141,7 @@ fn For() {
 // CHECK:STDOUT:   ret void, !dbg !50
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970"(ptr %self, i32 %other) !dbg !51 {
+// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d"(ptr %self, i32 %other) !dbg !51 {
 // CHECK:STDOUT:   %1 = call i32 @"_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.b88d1103f417c6d4"(i32 %other), !dbg !52
 // CHECK:STDOUT:   %2 = load i32, ptr %self, align 4, !dbg !53
 // CHECK:STDOUT:   %3 = add i32 %2, %1, !dbg !53
@@ -212,7 +212,7 @@ fn For() {
 // CHECK:STDOUT: !48 = distinct !DISubprogram(name: "None", linkageName: "_CNone.Optional.Core.b88d1103f417c6d4", scope: null, file: !35, line: 19, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !49 = !DILocation(line: 21, column: 5, scope: !48)
 // CHECK:STDOUT: !50 = !DILocation(line: 22, column: 5, scope: !48)
-// CHECK:STDOUT: !51 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970", scope: null, file: !42, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !51 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d", scope: null, file: !42, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !52 = !DILocation(line: 4294967295, scope: !51)
 // CHECK:STDOUT: !53 = !DILocation(line: 268, column: 3, scope: !51)
 // CHECK:STDOUT: !54 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.b88d1103f417c6d4", scope: null, file: !55, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
diff --git a/toolchain/lower/testdata/for/for.carbon b/toolchain/lower/testdata/for/for.carbon
index f2ab09df9371..e4bd9bbf7f98 100644
--- a/toolchain/lower/testdata/for/for.carbon
+++ b/toolchain/lower/testdata/for/for.carbon
@@ -111,7 +111,7 @@ fn For() {
 // CHECK:STDOUT: declare void @_CInclusiveRange.Core(ptr sret({ i32, i32 }), i32, i32)
 // CHECK:STDOUT:
 // CHECK:STDOUT: define linkonce_odr void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %self) !dbg !37 {
-// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970"(ptr %self, i32 1), !dbg !39
+// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d"(ptr %self, i32 1), !dbg !39
 // CHECK:STDOUT:   ret void, !dbg !40
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -129,7 +129,7 @@ fn For() {
 // CHECK:STDOUT:   ret void, !dbg !46
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970"(ptr %self, i32 %other) !dbg !47 {
+// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d"(ptr %self, i32 %other) !dbg !47 {
 // CHECK:STDOUT:   %1 = call i32 @"_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.b88d1103f417c6d4"(i32 %other), !dbg !48
 // CHECK:STDOUT:   %2 = load i32, ptr %self, align 4, !dbg !49
 // CHECK:STDOUT:   %3 = add i32 %2, %1, !dbg !49
@@ -196,7 +196,7 @@ fn For() {
 // CHECK:STDOUT: !44 = distinct !DISubprogram(name: "None", linkageName: "_CNone.Optional.Core.b88d1103f417c6d4", scope: null, file: !31, line: 19, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !45 = !DILocation(line: 21, column: 5, scope: !44)
 // CHECK:STDOUT: !46 = !DILocation(line: 22, column: 5, scope: !44)
-// CHECK:STDOUT: !47 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970", scope: null, file: !38, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !47 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d", scope: null, file: !38, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !48 = !DILocation(line: 4294967295, scope: !47)
 // CHECK:STDOUT: !49 = !DILocation(line: 268, column: 3, scope: !47)
 // CHECK:STDOUT: !50 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.b88d1103f417c6d4", scope: null, file: !51, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
diff --git a/toolchain/lower/testdata/function/generic/call_different_associated_const.carbon b/toolchain/lower/testdata/function/generic/call_different_associated_const.carbon
index 1ca41372a58d..66125d18b15c 100644
--- a/toolchain/lower/testdata/function/generic/call_different_associated_const.carbon
+++ b/toolchain/lower/testdata/function/generic/call_different_associated_const.carbon
@@ -43,19 +43,19 @@ fn H() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: define void @_CH.Main() !dbg !4 {
 // CHECK:STDOUT: entry:
-// CHECK:STDOUT:   call void @_CG.Main.47c020a542e13d96(), !dbg !7
-// CHECK:STDOUT:   call void @_CG.Main.a10ac7cbfa858009(), !dbg !8
+// CHECK:STDOUT:   call void @_CG.Main.ab883398692fb8de(), !dbg !7
+// CHECK:STDOUT:   call void @_CG.Main.f3e0eb3cce913d6d(), !dbg !8
 // CHECK:STDOUT:   ret void, !dbg !9
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CG.Main.47c020a542e13d96() !dbg !10 {
+// CHECK:STDOUT: define linkonce_odr void @_CG.Main.ab883398692fb8de() !dbg !10 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   %x.var = alloca i1, align 1, !dbg !11
 // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !11
 // CHECK:STDOUT:   ret void, !dbg !12
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CG.Main.a10ac7cbfa858009() !dbg !13 {
+// CHECK:STDOUT: define linkonce_odr void @_CG.Main.f3e0eb3cce913d6d() !dbg !13 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   %x.var = alloca i32, align 4, !dbg !14
 // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !14
@@ -83,9 +83,9 @@ fn H() {
 // CHECK:STDOUT: !7 = !DILocation(line: 36, column: 3, scope: !4)
 // CHECK:STDOUT: !8 = !DILocation(line: 37, column: 3, scope: !4)
 // CHECK:STDOUT: !9 = !DILocation(line: 35, column: 1, scope: !4)
-// CHECK:STDOUT: !10 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.47c020a542e13d96", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !10 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.ab883398692fb8de", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !11 = !DILocation(line: 23, column: 3, scope: !10)
 // CHECK:STDOUT: !12 = !DILocation(line: 22, column: 1, scope: !10)
-// CHECK:STDOUT: !13 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.a10ac7cbfa858009", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !13 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.f3e0eb3cce913d6d", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !14 = !DILocation(line: 23, column: 3, scope: !13)
 // CHECK:STDOUT: !15 = !DILocation(line: 22, column: 1, scope: !13)
diff --git a/toolchain/lower/testdata/function/generic/call_different_impls.carbon b/toolchain/lower/testdata/function/generic/call_different_impls.carbon
index 2cf7f7864408..42a0e753d2f8 100644
--- a/toolchain/lower/testdata/function/generic/call_different_impls.carbon
+++ b/toolchain/lower/testdata/function/generic/call_different_impls.carbon
@@ -52,20 +52,20 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: define void @main() !dbg !12 {
 // CHECK:STDOUT: entry:
-// CHECK:STDOUT:   call void @_CG.Main.2c436a64dfc3fd29(), !dbg !13
-// CHECK:STDOUT:   call void @_CG.Main.c124d41ebc08c32b(), !dbg !14
+// CHECK:STDOUT:   call void @_CG.Main.27d9156284bd9d70(), !dbg !13
+// CHECK:STDOUT:   call void @_CG.Main.47f2921af8bb5bef(), !dbg !14
 // CHECK:STDOUT:   ret void, !dbg !15
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: declare i32 @printf(ptr, ...)
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CG.Main.2c436a64dfc3fd29() !dbg !16 {
+// CHECK:STDOUT: define linkonce_odr void @_CG.Main.27d9156284bd9d70() !dbg !16 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   call void @"_CF.X.Main:I.Main"(), !dbg !17
 // CHECK:STDOUT:   ret void, !dbg !18
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CG.Main.c124d41ebc08c32b() !dbg !19 {
+// CHECK:STDOUT: define linkonce_odr void @_CG.Main.47f2921af8bb5bef() !dbg !19 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   call void @"_CF.Y.Main:I.Main"(), !dbg !20
 // CHECK:STDOUT:   ret void, !dbg !21
@@ -93,9 +93,9 @@ fn Run() {
 // CHECK:STDOUT: !13 = !DILocation(line: 32, column: 3, scope: !12)
 // CHECK:STDOUT: !14 = !DILocation(line: 33, column: 3, scope: !12)
 // CHECK:STDOUT: !15 = !DILocation(line: 31, column: 1, scope: !12)
-// CHECK:STDOUT: !16 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.2c436a64dfc3fd29", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !16 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.27d9156284bd9d70", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !17 = !DILocation(line: 29, column: 15, scope: !16)
 // CHECK:STDOUT: !18 = !DILocation(line: 29, column: 1, scope: !16)
-// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.c124d41ebc08c32b", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.47f2921af8bb5bef", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !20 = !DILocation(line: 29, column: 15, scope: !19)
 // CHECK:STDOUT: !21 = !DILocation(line: 29, column: 1, scope: !19)
diff --git a/toolchain/lower/testdata/function/generic/call_different_impls_with_const.carbon b/toolchain/lower/testdata/function/generic/call_different_impls_with_const.carbon
index 14732af35a75..a24e865717d8 100644
--- a/toolchain/lower/testdata/function/generic/call_different_impls_with_const.carbon
+++ b/toolchain/lower/testdata/function/generic/call_different_impls_with_const.carbon
@@ -61,20 +61,20 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: define void @main() !dbg !12 {
 // CHECK:STDOUT: entry:
-// CHECK:STDOUT:   call void @_CG.Main.ae78220c5e9d4af5(), !dbg !13
-// CHECK:STDOUT:   call void @_CG.Main.6b293b16be321a45(), !dbg !14
+// CHECK:STDOUT:   call void @_CG.Main.823e4ea02b7769c9(), !dbg !13
+// CHECK:STDOUT:   call void @_CG.Main.b264c674a4af0726(), !dbg !14
 // CHECK:STDOUT:   ret void, !dbg !15
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: declare i32 @printf(ptr, ...)
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CG.Main.ae78220c5e9d4af5() !dbg !16 {
+// CHECK:STDOUT: define linkonce_odr void @_CG.Main.823e4ea02b7769c9() !dbg !16 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   %.loc37_20.1 = call i1 @"_CF.X.Main:I.Main"(), !dbg !17
 // CHECK:STDOUT:   ret void, !dbg !18
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CG.Main.6b293b16be321a45() !dbg !19 {
+// CHECK:STDOUT: define linkonce_odr void @_CG.Main.b264c674a4af0726() !dbg !19 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   %.loc37_20.1 = call i32 @"_CF.Y.Main:I.Main"(), !dbg !20
 // CHECK:STDOUT:   ret void, !dbg !21
@@ -102,9 +102,9 @@ fn Run() {
 // CHECK:STDOUT: !13 = !DILocation(line: 41, column: 3, scope: !12)
 // CHECK:STDOUT: !14 = !DILocation(line: 42, column: 3, scope: !12)
 // CHECK:STDOUT: !15 = !DILocation(line: 40, column: 1, scope: !12)
-// CHECK:STDOUT: !16 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.ae78220c5e9d4af5", scope: null, file: !3, line: 36, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !16 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.823e4ea02b7769c9", scope: null, file: !3, line: 36, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !17 = !DILocation(line: 37, column: 16, scope: !16)
 // CHECK:STDOUT: !18 = !DILocation(line: 36, column: 1, scope: !16)
-// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.6b293b16be321a45", scope: null, file: !3, line: 36, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.b264c674a4af0726", scope: null, file: !3, line: 36, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !20 = !DILocation(line: 37, column: 16, scope: !19)
 // CHECK:STDOUT: !21 = !DILocation(line: 36, column: 1, scope: !19)
diff --git a/toolchain/lower/testdata/function/generic/call_impl_function.carbon b/toolchain/lower/testdata/function/generic/call_impl_function.carbon
index 14fbd6d8a84c..aa6d81cc2c50 100644
--- a/toolchain/lower/testdata/function/generic/call_impl_function.carbon
+++ b/toolchain/lower/testdata/function/generic/call_impl_function.carbon
@@ -54,11 +54,11 @@ fn G() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: define void @_CG.Main() !dbg !9 {
 // CHECK:STDOUT: entry:
-// CHECK:STDOUT:   %CallGenericMethod.call = call i32 @_CCallGenericMethod.Main.b330a91dfda257ee(i32 10), !dbg !10
+// CHECK:STDOUT:   %CallGenericMethod.call = call i32 @_CCallGenericMethod.Main.acc47153a1124d08(i32 10), !dbg !10
 // CHECK:STDOUT:   ret void, !dbg !11
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr i32 @_CCallGenericMethod.Main.b330a91dfda257ee(i32 %x) !dbg !12 {
+// CHECK:STDOUT: define linkonce_odr i32 @_CCallGenericMethod.Main.acc47153a1124d08(i32 %x) !dbg !12 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   %.loc36_15 = call i32 @"_CF.ImplsSomeInterface.Main:SomeInterface.Main"(i32 %x), !dbg !13
 // CHECK:STDOUT:   ret i32 %.loc36_15, !dbg !14
@@ -79,6 +79,6 @@ fn G() {
 // CHECK:STDOUT: !9 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 39, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !10 = !DILocation(line: 40, column: 3, scope: !9)
 // CHECK:STDOUT: !11 = !DILocation(line: 39, column: 1, scope: !9)
-// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "CallGenericMethod", linkageName: "_CCallGenericMethod.Main.b330a91dfda257ee", scope: null, file: !3, line: 35, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "CallGenericMethod", linkageName: "_CCallGenericMethod.Main.acc47153a1124d08", scope: null, file: !3, line: 35, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !13 = !DILocation(line: 36, column: 10, scope: !12)
 // CHECK:STDOUT: !14 = !DILocation(line: 36, column: 3, scope: !12)
diff --git a/toolchain/lower/testdata/function/generic/call_recursive_impl.carbon b/toolchain/lower/testdata/function/generic/call_recursive_impl.carbon
index 9cbc743b7709..e883949e293d 100644
--- a/toolchain/lower/testdata/function/generic/call_recursive_impl.carbon
+++ b/toolchain/lower/testdata/function/generic/call_recursive_impl.carbon
@@ -60,14 +60,14 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: define void @main() !dbg !12 {
 // CHECK:STDOUT: entry:
-// CHECK:STDOUT:   %G.call.loc40 = call i32 @_CG.Main.2c436a64dfc3fd29(i32 0), !dbg !13
-// CHECK:STDOUT:   %G.call.loc41 = call i32 @_CG.Main.c124d41ebc08c32b(i32 0), !dbg !14
+// CHECK:STDOUT:   %G.call.loc40 = call i32 @_CG.Main.27d9156284bd9d70(i32 0), !dbg !13
+// CHECK:STDOUT:   %G.call.loc41 = call i32 @_CG.Main.47f2921af8bb5bef(i32 0), !dbg !14
 // CHECK:STDOUT:   ret void, !dbg !15
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: declare i32 @printf(ptr, ...)
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.2c436a64dfc3fd29(i32 %count) !dbg !16 {
+// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.27d9156284bd9d70(i32 %count) !dbg !16 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   call void @"_CF.X.Main:I.Main"(), !dbg !17
 // CHECK:STDOUT:   %Int.as.OrderedWith.impl.Greater.call = icmp sgt i32 %count, 0, !dbg !18
@@ -78,11 +78,11 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: if.else:                                          ; preds = %entry
 // CHECK:STDOUT:   %Int.as.AddWith.impl.Op.call = add i32 %count, 1, !dbg !21
-// CHECK:STDOUT:   %G.call = call i32 @_CG.Main.2c436a64dfc3fd29(i32 %Int.as.AddWith.impl.Op.call), !dbg !22
+// CHECK:STDOUT:   %G.call = call i32 @_CG.Main.27d9156284bd9d70(i32 %Int.as.AddWith.impl.Op.call), !dbg !22
 // CHECK:STDOUT:   ret i32 %G.call, !dbg !23
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.c124d41ebc08c32b(i32 %count) !dbg !24 {
+// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.47f2921af8bb5bef(i32 %count) !dbg !24 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   call void @"_CF.Y.Main:I.Main"(), !dbg !25
 // CHECK:STDOUT:   %Int.as.OrderedWith.impl.Greater.call = icmp sgt i32 %count, 0, !dbg !26
@@ -93,7 +93,7 @@ fn Run() {
 // CHECK:STDOUT:
 // CHECK:STDOUT: if.else:                                          ; preds = %entry
 // CHECK:STDOUT:   %Int.as.AddWith.impl.Op.call = add i32 %count, 1, !dbg !29
-// CHECK:STDOUT:   %G.call = call i32 @_CG.Main.c124d41ebc08c32b(i32 %Int.as.AddWith.impl.Op.call), !dbg !30
+// CHECK:STDOUT:   %G.call = call i32 @_CG.Main.47f2921af8bb5bef(i32 %Int.as.AddWith.impl.Op.call), !dbg !30
 // CHECK:STDOUT:   ret i32 %G.call, !dbg !31
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -119,7 +119,7 @@ fn Run() {
 // CHECK:STDOUT: !13 = !DILocation(line: 40, column: 3, scope: !12)
 // CHECK:STDOUT: !14 = !DILocation(line: 41, column: 3, scope: !12)
 // CHECK:STDOUT: !15 = !DILocation(line: 39, column: 1, scope: !12)
-// CHECK:STDOUT: !16 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.2c436a64dfc3fd29", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !16 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.27d9156284bd9d70", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !17 = !DILocation(line: 31, column: 3, scope: !16)
 // CHECK:STDOUT: !18 = !DILocation(line: 33, column: 7, scope: !16)
 // CHECK:STDOUT: !19 = !DILocation(line: 33, column: 6, scope: !16)
@@ -127,7 +127,7 @@ fn Run() {
 // CHECK:STDOUT: !21 = !DILocation(line: 36, column: 15, scope: !16)
 // CHECK:STDOUT: !22 = !DILocation(line: 36, column: 10, scope: !16)
 // CHECK:STDOUT: !23 = !DILocation(line: 36, column: 3, scope: !16)
-// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.c124d41ebc08c32b", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.47f2921af8bb5bef", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !25 = !DILocation(line: 31, column: 3, scope: !24)
 // CHECK:STDOUT: !26 = !DILocation(line: 33, column: 7, scope: !24)
 // CHECK:STDOUT: !27 = !DILocation(line: 33, column: 6, scope: !24)
diff --git a/toolchain/lower/testdata/impl/thunk.carbon b/toolchain/lower/testdata/impl/thunk.carbon
index cdcc81c680d8..2b00653b1567 100644
--- a/toolchain/lower/testdata/impl/thunk.carbon
+++ b/toolchain/lower/testdata/impl/thunk.carbon
@@ -199,7 +199,7 @@ fn CallCallGeneric(c: C(()), b: B) -> A {
 // CHECK:STDOUT:
 // CHECK:STDOUT: define void @_CCallCallGeneric.Main(ptr sret({}) %return, ptr %c, ptr %b) !dbg !12 {
 // CHECK:STDOUT: entry:
-// CHECK:STDOUT:   call void @_CCallGeneric.Main.9ef6968dffa77413(ptr %return, ptr %c, ptr %b), !dbg !13
+// CHECK:STDOUT:   call void @_CCallGeneric.Main.0bb47992fefb9e3b(ptr %return, ptr %c, ptr %b), !dbg !13
 // CHECK:STDOUT:   ret void, !dbg !14
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -215,7 +215,7 @@ fn CallCallGeneric(c: C(()), b: B) -> A {
 // CHECK:STDOUT:   ret void, !dbg !16
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @_CCallGeneric.Main.9ef6968dffa77413(ptr sret({}) %return, ptr %c, ptr %b) !dbg !17 {
+// CHECK:STDOUT: define linkonce_odr void @_CCallGeneric.Main.0bb47992fefb9e3b(ptr sret({}) %return, ptr %c, ptr %b) !dbg !17 {
 // CHECK:STDOUT: entry:
 // CHECK:STDOUT:   call void @"_CF:thunk.C.Main:I.Main.e43630e9a6c38c3f"(ptr %return, ptr %c, ptr %b), !dbg !18
 // CHECK:STDOUT:   ret void, !dbg !19
@@ -264,7 +264,7 @@ fn CallCallGeneric(c: C(()), b: B) -> A {
 // CHECK:STDOUT: !14 = !DILocation(line: 30, column: 3, scope: !12)
 // CHECK:STDOUT: !15 = distinct !DISubprogram(name: "F", linkageName: "_CF.C.Main:I.Main.e43630e9a6c38c3f", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !16 = !DILocation(line: 18, column: 33, scope: !15)
-// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "CallGeneric", linkageName: "_CCallGeneric.Main.9ef6968dffa77413", scope: null, file: !3, line: 25, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "CallGeneric", linkageName: "_CCallGeneric.Main.0bb47992fefb9e3b", scope: null, file: !3, line: 25, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !18 = !DILocation(line: 26, column: 10, scope: !17)
 // CHECK:STDOUT: !19 = !DILocation(line: 26, column: 3, scope: !17)
 // CHECK:STDOUT: !20 = distinct !DISubprogram(name: "F", linkageName: "_CF:thunk.C.Main:I.Main.e43630e9a6c38c3f", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
diff --git a/toolchain/lower/testdata/operators/increment.carbon b/toolchain/lower/testdata/operators/increment.carbon
index 87c19f2b33d8..2aa037c61e21 100644
--- a/toolchain/lower/testdata/operators/increment.carbon
+++ b/toolchain/lower/testdata/operators/increment.carbon
@@ -35,11 +35,11 @@ fn IncrSigned() {
 // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #0
 // CHECK:STDOUT:
 // CHECK:STDOUT: define linkonce_odr void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %self) !dbg !10 {
-// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970"(ptr %self, i32 1), !dbg !12
+// CHECK:STDOUT:   call void @"_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d"(ptr %self, i32 1), !dbg !12
 // CHECK:STDOUT:   ret void, !dbg !13
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
-// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970"(ptr %self, i32 %other) !dbg !14 {
+// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d"(ptr %self, i32 %other) !dbg !14 {
 // CHECK:STDOUT:   %1 = call i32 @"_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.b88d1103f417c6d4"(i32 %other), !dbg !15
 // CHECK:STDOUT:   %2 = load i32, ptr %self, align 4, !dbg !16
 // CHECK:STDOUT:   %3 = add i32 %2, %1, !dbg !16
@@ -70,7 +70,7 @@ fn IncrSigned() {
 // CHECK:STDOUT: !11 = !DIFile(filename: "{{.*}}/prelude/types/int.carbon", directory: "")
 // CHECK:STDOUT: !12 = !DILocation(line: 334, column: 5, scope: !10)
 // CHECK:STDOUT: !13 = !DILocation(line: 332, column: 3, scope: !10)
-// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.abc639a111145970", scope: null, file: !11, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
+// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.81406e440463ef1d", scope: null, file: !11, line: 268, type: !5, spFlags: DISPFlagDefinition, unit: !2)
 // CHECK:STDOUT: !15 = !DILocation(line: 4294967295, scope: !14)
 // CHECK:STDOUT: !16 = !DILocation(line: 268, column: 3, scope: !14)
 // CHECK:STDOUT: !17 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.8b3d5d6a6c17be04:ImplicitAs.Core.b88d1103f417c6d4", scope: null, file: !18, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
diff --git a/toolchain/sem_ir/inst_fingerprinter.cpp b/toolchain/sem_ir/inst_fingerprinter.cpp
index e94d51c6e1fa..cdad204ed7c9 100644
--- a/toolchain/sem_ir/inst_fingerprinter.cpp
+++ b/toolchain/sem_ir/inst_fingerprinter.cpp
@@ -249,18 +249,16 @@ struct Worklist {
 
   auto Add(FacetTypeId facet_type_id) -> void {
     const auto& facet_type = sem_ir->facet_types().Get(facet_type_id);
-    for (auto [interface_id, specific_id] : facet_type.extend_constraints) {
-      Add(interface_id);
-      Add(specific_id);
-    }
-    for (auto [interface_id, specific_id] : facet_type.self_impls_constraints) {
-      Add(interface_id);
-      Add(specific_id);
-    }
-    for (auto [lhs_id, rhs_id] : facet_type.rewrite_constraints) {
-      Add(lhs_id);
-      Add(rhs_id);
-    }
+    auto add_constraints = [&](auto constraints) {
+      contents.push_back(constraints.size());
+      for (auto [first, second] : constraints) {
+        Add(first);
+        Add(second);
+      }
+    };
+    add_constraints(facet_type.extend_constraints);
+    add_constraints(facet_type.self_impls_constraints);
+    add_constraints(facet_type.rewrite_constraints);
     contents.push_back(facet_type.other_requirements);
   }