Improve diagnostics for overload resolution failure. (#6091)

Include notes listing the candidates and explaining why they didn't
work. Rather than duplicating the (substantial) logic for this, use the
Clang machinery to generate these diagnostics.

In order to support this, add a mechanism to map `SemIR::LocId`s to
`clang::SourceLocation`s. This works by creating source buffers in Clang
that refer into the Carbon source file so that `SourceLocation`s can
point into them.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
This commit is contained in:
Richard Smith
2025-09-19 20:22:47 +00:00
committed by GitHub
co-authored by Jon Ross-Perkins
parent ef488f00fa
commit 925250f8f9
21 changed files with 443 additions and 349 deletions
+111 -104
View File
@@ -44,32 +44,35 @@ fn F() {
//@dump-sem-ir-begin
var v: Cpp.S;
let s: Cpp.S = v;
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesLValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesLValue(s);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesLValue(s);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+8]]:20: error: no matching function for call to 'TakesLValue' [CppInteropParseError]
// CHECK:STDERR: 18 | Cpp.TakesLValue(s);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE-9]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./lvalue_ref.h:5:6: note: candidate function not viable: expects an lvalue for 1st argument [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesLValue(S&) -> void;
// CHECK:STDERR: | ^ ~~
// CHECK:STDERR:
Cpp.TakesLValue(s);
var t: Cpp.T;
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesLValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesLValue(t);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesLValue(t);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+8]]:20: error: no matching function for call to 'TakesLValue' [CppInteropParseError]
// CHECK:STDERR: 29 | Cpp.TakesLValue(t);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE-20]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./lvalue_ref.h:5:6: note: candidate function not viable: no known conversion from 'T' to 'S &' for 1st argument [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesLValue(S&) -> void;
// CHECK:STDERR: | ^ ~~
// CHECK:STDERR:
Cpp.TakesLValue(t);
var u: Cpp.S;
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesLValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesLValue(u as const Cpp.S);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesLValue(u as const Cpp.S);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE+8]]:35: error: no matching function for call to 'TakesLValue' [CppInteropParseError]
// CHECK:STDERR: 40 | Cpp.TakesLValue(u as const Cpp.S);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_lvalue_ref.carbon:[[@LINE-31]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./lvalue_ref.h:5:6: note: candidate function not viable: 1st argument ('const S') would lose const qualifier [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesLValue(S&) -> void;
// CHECK:STDERR: | ^ ~~
// CHECK:STDERR:
Cpp.TakesLValue(u as const Cpp.S);
//@dump-sem-ir-end
@@ -124,31 +127,34 @@ import Cpp library "rvalue_ref.h";
fn F() {
//@dump-sem-ir-begin
var s: Cpp.S;
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesRValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesRValue(s);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesRValue(s);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+8]]:20: error: no matching function for call to 'TakesRValue' [CppInteropParseError]
// CHECK:STDERR: 17 | Cpp.TakesRValue(s);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE-8]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./rvalue_ref.h:5:6: note: candidate function not viable: expects an rvalue for 1st argument [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesRValue(S&&) -> void;
// CHECK:STDERR: | ^ ~~~
// CHECK:STDERR:
Cpp.TakesRValue(s);
var t: Cpp.T;
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesRValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesRValue(t);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesRValue(t);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+8]]:20: error: no matching function for call to 'TakesRValue' [CppInteropParseError]
// CHECK:STDERR: 28 | Cpp.TakesRValue(t);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE-19]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./rvalue_ref.h:5:6: note: candidate function not viable: no known conversion from 'T' to 'S' for 1st argument [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesRValue(S&&) -> void;
// CHECK:STDERR: | ^ ~~~
// CHECK:STDERR:
Cpp.TakesRValue(t);
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesRValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesRValue(({} as Cpp.S) as const Cpp.S);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesRValue(({} as Cpp.S) as const Cpp.S);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE+8]]:47: error: no matching function for call to 'TakesRValue' [CppInteropParseError]
// CHECK:STDERR: 38 | Cpp.TakesRValue(({} as Cpp.S) as const Cpp.S);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_rvalue_ref.carbon:[[@LINE-29]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./rvalue_ref.h:5:6: note: candidate function not viable: 1st argument ('const S') would lose const qualifier [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesRValue(S&&) -> void;
// CHECK:STDERR: | ^ ~~~
// CHECK:STDERR:
Cpp.TakesRValue(({} as Cpp.S) as const Cpp.S);
//@dump-sem-ir-end
@@ -201,12 +207,13 @@ fn F() {
Cpp.TakesConstLValue(s);
var t: Cpp.T;
// CHECK:STDERR: fail_const_lvalue_ref.carbon:[[@LINE+7]]:3: error: no matching function for call to `TakesConstLValue` [CppOverloadingNoViableFunctionFound]
// CHECK:STDERR: Cpp.TakesConstLValue(t);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_const_lvalue_ref.carbon:[[@LINE+4]]:3: note: in call to Cpp function here [InCallToCppFunction]
// CHECK:STDERR: Cpp.TakesConstLValue(t);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_const_lvalue_ref.carbon:[[@LINE+8]]:25: error: no matching function for call to 'TakesConstLValue' [CppInteropParseError]
// CHECK:STDERR: 29 | Cpp.TakesConstLValue(t);
// CHECK:STDERR: | ^
// CHECK:STDERR: fail_const_lvalue_ref.carbon:[[@LINE-20]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./const_lvalue_ref.h:5:6: note: candidate function not viable: no known conversion from 'T' to 'const S' for 1st argument [CppInteropParseNote]
// CHECK:STDERR: 5 | auto TakesConstLValue(const S&) -> void;
// CHECK:STDERR: | ^ ~~~~~~~~
// CHECK:STDERR:
Cpp.TakesConstLValue(t);
//@dump-sem-ir-end
@@ -333,54 +340,54 @@ fn F() {
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc9_18: %S = bind_value %v.ref
// CHECK:STDOUT: %s: %S = bind_name s, %.loc9_18
// CHECK:STDOUT: %Cpp.ref.loc17: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesLValue.ref.loc17: %.547 = name_ref TakesLValue, imports.%.a7f [concrete = constants.%empty_struct]
// CHECK:STDOUT: %Cpp.ref.loc18: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesLValue.ref.loc18: %.547 = name_ref TakesLValue, imports.%.a7f [concrete = constants.%empty_struct]
// CHECK:STDOUT: %s.ref: %S = name_ref s, %s
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %t.patt: %pattern_type.e6b = binding_pattern t [concrete]
// CHECK:STDOUT: %t.var_patt: %pattern_type.e6b = var_pattern %t.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %t.var: ref %T = var %t.var_patt
// CHECK:STDOUT: %.loc19_13: type = splice_block %T.ref [concrete = constants.%T] {
// CHECK:STDOUT: %Cpp.ref.loc19: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %.loc20_13: type = splice_block %T.ref [concrete = constants.%T] {
// CHECK:STDOUT: %Cpp.ref.loc20: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %T.ref: type = name_ref T, imports.%T.decl [concrete = constants.%T]
// CHECK:STDOUT: }
// CHECK:STDOUT: %t: ref %T = bind_name t, %t.var
// CHECK:STDOUT: %Cpp.ref.loc27: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesLValue.ref.loc27: %.547 = name_ref TakesLValue, imports.%.a7f [concrete = constants.%empty_struct]
// CHECK:STDOUT: %Cpp.ref.loc29: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesLValue.ref.loc29: %.547 = name_ref TakesLValue, imports.%.a7f [concrete = constants.%empty_struct]
// CHECK:STDOUT: %t.ref: ref %T = name_ref t, %t
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %u.patt: %pattern_type.7da = binding_pattern u [concrete]
// CHECK:STDOUT: %u.var_patt: %pattern_type.7da = var_pattern %u.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %u.var: ref %S = var %u.var_patt
// CHECK:STDOUT: %.loc29_13: type = splice_block %S.ref.loc29 [concrete = constants.%S] {
// CHECK:STDOUT: %Cpp.ref.loc29: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc29: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %.loc31_13: type = splice_block %S.ref.loc31 [concrete = constants.%S] {
// CHECK:STDOUT: %Cpp.ref.loc31: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc31: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: }
// CHECK:STDOUT: %u: ref %S = bind_name u, %u.var
// CHECK:STDOUT: %Cpp.ref.loc37_3: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesLValue.ref.loc37: %.547 = name_ref TakesLValue, imports.%.a7f [concrete = constants.%empty_struct]
// CHECK:STDOUT: %Cpp.ref.loc40_3: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesLValue.ref.loc40: %.547 = name_ref TakesLValue, imports.%.a7f [concrete = constants.%empty_struct]
// CHECK:STDOUT: %u.ref: ref %S = name_ref u, %u
// CHECK:STDOUT: %Cpp.ref.loc37_30: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc37: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %const: type = const_type %S.ref.loc37 [concrete = constants.%const.e39]
// CHECK:STDOUT: %.loc37_21.1: ref %const.e39 = as_compatible %u.ref
// CHECK:STDOUT: %.loc37_21.2: ref %const.e39 = converted %u.ref, %.loc37_21.1
// CHECK:STDOUT: %facet_value.loc29: %type_where = facet_value constants.%S, () [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %.loc29_3: %type_where = converted constants.%S, %facet_value.loc29 [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc29: <bound method> = bound_method %u.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.cc2
// CHECK:STDOUT: %Cpp.ref.loc40_30: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc40: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %const: type = const_type %S.ref.loc40 [concrete = constants.%const.e39]
// CHECK:STDOUT: %.loc40_21.1: ref %const.e39 = as_compatible %u.ref
// CHECK:STDOUT: %.loc40_21.2: ref %const.e39 = converted %u.ref, %.loc40_21.1
// CHECK:STDOUT: %facet_value.loc31: %type_where = facet_value constants.%S, () [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %.loc31_3: %type_where = converted constants.%S, %facet_value.loc31 [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc31: <bound method> = bound_method %u.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.cc2
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc29: <bound method> = bound_method %u.var, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc29: %ptr.5c7 = addr_of %u.var
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc29: init %empty_tuple.type = call %bound_method.loc29(%addr.loc29)
// CHECK:STDOUT: %facet_value.loc19: %type_where = facet_value constants.%T, () [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %.loc19_3: %type_where = converted constants.%T, %facet_value.loc19 [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %t.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.8c8
// CHECK:STDOUT: %bound_method.loc31: <bound method> = bound_method %u.var, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc31: %ptr.5c7 = addr_of %u.var
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc31: init %empty_tuple.type = call %bound_method.loc31(%addr.loc31)
// CHECK:STDOUT: %facet_value.loc20: %type_where = facet_value constants.%T, () [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %.loc20_3: %type_where = converted constants.%T, %facet_value.loc20 [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc20: <bound method> = bound_method %t.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.8c8
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc19: <bound method> = bound_method %t.var, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc19: %ptr.b04 = addr_of %t.var
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc19: init %empty_tuple.type = call %bound_method.loc19(%addr.loc19)
// CHECK:STDOUT: %bound_method.loc20: <bound method> = bound_method %t.var, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc20: %ptr.b04 = addr_of %t.var
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc20: init %empty_tuple.type = call %bound_method.loc20(%addr.loc20)
// CHECK:STDOUT: %facet_value.loc8: %type_where = facet_value constants.%S, () [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %.loc8_3: %type_where = converted constants.%S, %facet_value.loc8 [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %v.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.cc2
@@ -563,50 +570,50 @@ fn F() {
// CHECK:STDOUT: %S.ref.loc8: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: }
// CHECK:STDOUT: %s: ref %S = bind_name s, %s.var
// CHECK:STDOUT: %Cpp.ref.loc16: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesRValue.ref.loc16: %.1b9 = name_ref TakesRValue, imports.%.1f6 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %Cpp.ref.loc17: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesRValue.ref.loc17: %.1b9 = name_ref TakesRValue, imports.%.1f6 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %s.ref: ref %S = name_ref s, %s
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %t.patt: %pattern_type.e6b = binding_pattern t [concrete]
// CHECK:STDOUT: %t.var_patt: %pattern_type.e6b = var_pattern %t.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %t.var: ref %T = var %t.var_patt
// CHECK:STDOUT: %.loc18_13: type = splice_block %T.ref [concrete = constants.%T] {
// CHECK:STDOUT: %Cpp.ref.loc18: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %.loc19_13: type = splice_block %T.ref [concrete = constants.%T] {
// CHECK:STDOUT: %Cpp.ref.loc19: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %T.ref: type = name_ref T, imports.%T.decl [concrete = constants.%T]
// CHECK:STDOUT: }
// CHECK:STDOUT: %t: ref %T = bind_name t, %t.var
// CHECK:STDOUT: %Cpp.ref.loc26: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesRValue.ref.loc26: %.1b9 = name_ref TakesRValue, imports.%.1f6 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %Cpp.ref.loc28: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesRValue.ref.loc28: %.1b9 = name_ref TakesRValue, imports.%.1f6 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %t.ref: ref %T = name_ref t, %t
// CHECK:STDOUT: %Cpp.ref.loc35_3: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesRValue.ref.loc35: %.1b9 = name_ref TakesRValue, imports.%.1f6 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %.loc35_21.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %Cpp.ref.loc35_26: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc35_29: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %.loc35_21.2: ref %S = temporary_storage
// CHECK:STDOUT: %.loc35_21.3: init %S = class_init (), %.loc35_21.2 [concrete = constants.%S.val]
// CHECK:STDOUT: %.loc35_21.4: ref %S = temporary %.loc35_21.2, %.loc35_21.3
// CHECK:STDOUT: %.loc35_23: ref %S = converted %.loc35_21.1, %.loc35_21.4
// CHECK:STDOUT: %Cpp.ref.loc35_42: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc35_45: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %const: type = const_type %S.ref.loc35_45 [concrete = constants.%const.e39]
// CHECK:STDOUT: %.loc35_33.1: ref %const.e39 = as_compatible %.loc35_23
// CHECK:STDOUT: %.loc35_33.2: ref %const.e39 = converted %.loc35_23, %.loc35_33.1
// CHECK:STDOUT: %facet_value.loc35: %type_where = facet_value constants.%S, () [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %.loc35_21.5: %type_where = converted constants.%S, %facet_value.loc35 [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc35: <bound method> = bound_method %.loc35_21.4, constants.%AggregateT.as_type.as.Destroy.impl.Op.cc2
// CHECK:STDOUT: %Cpp.ref.loc38_3: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesRValue.ref.loc38: %.1b9 = name_ref TakesRValue, imports.%.1f6 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %.loc38_21.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %Cpp.ref.loc38_26: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc38_29: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %.loc38_21.2: ref %S = temporary_storage
// CHECK:STDOUT: %.loc38_21.3: init %S = class_init (), %.loc38_21.2 [concrete = constants.%S.val]
// CHECK:STDOUT: %.loc38_21.4: ref %S = temporary %.loc38_21.2, %.loc38_21.3
// CHECK:STDOUT: %.loc38_23: ref %S = converted %.loc38_21.1, %.loc38_21.4
// CHECK:STDOUT: %Cpp.ref.loc38_42: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %S.ref.loc38_45: type = name_ref S, imports.%S.decl [concrete = constants.%S]
// CHECK:STDOUT: %const: type = const_type %S.ref.loc38_45 [concrete = constants.%const.e39]
// CHECK:STDOUT: %.loc38_33.1: ref %const.e39 = as_compatible %.loc38_23
// CHECK:STDOUT: %.loc38_33.2: ref %const.e39 = converted %.loc38_23, %.loc38_33.1
// CHECK:STDOUT: %facet_value.loc38: %type_where = facet_value constants.%S, () [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %.loc38_21.5: %type_where = converted constants.%S, %facet_value.loc38 [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc38: <bound method> = bound_method %.loc38_21.4, constants.%AggregateT.as_type.as.Destroy.impl.Op.cc2
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc35: <bound method> = bound_method %.loc35_21.4, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc35: %ptr.5c7 = addr_of %.loc35_21.4
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc35: init %empty_tuple.type = call %bound_method.loc35(%addr.loc35)
// CHECK:STDOUT: %facet_value.loc18: %type_where = facet_value constants.%T, () [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %.loc18_3: %type_where = converted constants.%T, %facet_value.loc18 [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %t.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.8c8
// CHECK:STDOUT: %bound_method.loc38: <bound method> = bound_method %.loc38_21.4, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc38: %ptr.5c7 = addr_of %.loc38_21.4
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc38: init %empty_tuple.type = call %bound_method.loc38(%addr.loc38)
// CHECK:STDOUT: %facet_value.loc19: %type_where = facet_value constants.%T, () [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %.loc19_3: %type_where = converted constants.%T, %facet_value.loc19 [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %t.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.8c8
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc18: <bound method> = bound_method %t.var, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc18: %ptr.b04 = addr_of %t.var
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc18: init %empty_tuple.type = call %bound_method.loc18(%addr.loc18)
// CHECK:STDOUT: %bound_method.loc19: <bound method> = bound_method %t.var, %AggregateT.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc19: %ptr.b04 = addr_of %t.var
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.call.loc19: init %empty_tuple.type = call %bound_method.loc19(%addr.loc19)
// CHECK:STDOUT: %facet_value.loc8: %type_where = facet_value constants.%S, () [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %.loc8_3: %type_where = converted constants.%S, %facet_value.loc8 [concrete = constants.%facet_value.7bd]
// CHECK:STDOUT: %AggregateT.as_type.as.Destroy.impl.Op.bound.loc8: <bound method> = bound_method %s.var, constants.%AggregateT.as_type.as.Destroy.impl.Op.cc2
@@ -774,8 +781,8 @@ fn F() {
// CHECK:STDOUT: %T.ref: type = name_ref T, imports.%T.decl [concrete = constants.%T]
// CHECK:STDOUT: }
// CHECK:STDOUT: %t: ref %T = bind_name t, %t.var
// CHECK:STDOUT: %Cpp.ref.loc28: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesConstLValue.ref.loc28: %.4e1 = name_ref TakesConstLValue, imports.%.9bc [concrete = constants.%empty_struct]
// CHECK:STDOUT: %Cpp.ref.loc29: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %TakesConstLValue.ref.loc29: %.4e1 = name_ref TakesConstLValue, imports.%.9bc [concrete = constants.%empty_struct]
// CHECK:STDOUT: %t.ref: ref %T = name_ref t, %t
// CHECK:STDOUT: %facet_value.loc20: %type_where = facet_value constants.%T, () [concrete = constants.%facet_value.19d]
// CHECK:STDOUT: %.loc20_3: %type_where = converted constants.%T, %facet_value.loc20 [concrete = constants.%facet_value.19d]