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carbon-lang/toolchain/check/testdata/class/generic/base_is_generic.carbon
T
Chandler Carruth 8be274cf60 Replace :! binding syntax with phase keywords and contextual defaults (#7479) 
Implement the toolchain side of proposal #7254, removing the `:!`
binding
syntax for generic and template parameters in favor of the keywords
`generic`,
`template`, and `runtime` plus contextual defaults for phase.

For valid programs this is semantics-preserving: each binding resolves
to the
same phase, and produces the same SemIR, as it did under `:!`/`:`. The
parser
derives a binding's phase from its syntactic context plus any explicit
phase
keyword; new diagnostics and error recovery for misused keywords are
described
below.

Implementation details for each component:

- Lexer: remove the `:!` (`ColonExclaim`) token, move its virtual
parse-node
  budget onto `:`, and add the `generic` and `runtime` keywords.
- Parser: thread a `BindingContext` (`ExplicitParam`, `DeducedParam`, or
`CompileTimeEntityParam`) from declaration introducers down through
parameter
lists to each binding pattern, using a one-token lookahead to
distinguish a
name-qualifier parameter list from a declaration's own final list.
Parameters
of a compile-time entity (`class`, `interface`, `constraint`, `choice`,
`alias`, `export`, `namespace`) and deduced `[]` parameters default to
checked
generic; explicit function parameters and local bindings default to
runtime.
`HandleBindingPattern` resolves the phase from that context plus the
keyword: a
`generic` keyword needs no node of its own (the phase is carried by the
  binding's node kind), while a `runtime` keyword is preserved as a
`RuntimeBindingName` node so `check` can name it in a diagnostic. A
phase
keyword that is merely redundant with the contextual default is
diagnosed
  here, without invalidating the parse tree.
- Check: a phase keyword that is invalid for its context (for example
`runtime`
on a checked-generic parameter) is diagnosed here, and recovers by
building an
error binding that still introduces the name so that later uses of it do
not
  produce cascading errors.

The removed `:!` syntax is now rejected as an ordinary parse error.

The `form`/`:?`/`->?` ("extended types") portion of proposal #7254 is
left for a
separate change.

Assisted-by: Claude Code
2026-07-11 01:22:44 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/generic/base_is_generic.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/generic/base_is_generic.carbon
// --- extend_generic_base.carbon
library "[[@TEST_NAME]]";
base class Base(T: type) {
var x: T;
}
class Param {
var y: i32;
}
class Derived {
extend base: Base(Param);
}
fn DoubleFieldAccess(d: Derived) -> i32 {
return d.x.y;
}
// --- import.carbon
library "[[@TEST_NAME]]";
import library "extend_generic_base";
fn ImportedDoubleFieldAccess(d: Derived) -> i32 {
return d.x.y;
}
// --- fail_todo_extend_symbolic_base.carbon
library "[[@TEST_NAME]]";
class C(T: type) {
// CHECK:STDERR: fail_todo_extend_symbolic_base.carbon:[[@LINE+4]]:16: error: deriving from final type `T`; base type must be an `abstract` or `base` class [BaseIsFinal]
// CHECK:STDERR: extend base: T;
// CHECK:STDERR: ^
// CHECK:STDERR:
extend base: T;
}
base class X {
fn G() {}
}
fn F() {
C(X).G();
}
// --- extend_generic_symbolic_base.carbon
library "[[@TEST_NAME]]";
base class X(U: type) {
fn G() -> U { return G(); }
}
class C(T: type) {
extend base: X(T);
}
fn F() {
let unused i: i32 = C(i32).G();
}
// --- import_extend_generic_symbolic_base.carbon
library "[[@TEST_NAME]]";
import library "extend_generic_symbolic_base";
fn H() {
let unused j: i32 = C(i32).G();
}
// CHECK:STDOUT: --- extend_generic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %T.patt.d47: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT: %T.67d: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %Base.type: type = generic_class_type @Base [concrete]
// CHECK:STDOUT: %Base.generic: %Base.type = struct_value () [concrete]
// CHECK:STDOUT: %Base.798: type = class_type @Base, @Base(%T.67d) [symbolic]
// CHECK:STDOUT: %require_complete.944: <witness> = require_complete_type %T.67d [symbolic]
// CHECK:STDOUT: %pattern_type.51d: type = pattern_type %T.67d [symbolic]
// CHECK:STDOUT: %x.patt.719: %pattern_type.51d = ref_binding_pattern x [symbolic]
// CHECK:STDOUT: %Base.elem.a3c: type = unbound_element_type %Base.798, %T.67d [symbolic]
// CHECK:STDOUT: %struct_type.x.0c5: type = struct_type {.x: %T.67d} [symbolic]
// CHECK:STDOUT: %complete_type.735: <witness> = complete_type_witness %struct_type.x.0c5 [symbolic]
// CHECK:STDOUT: %Param: type = class_type @Param [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: %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %pattern_type.6b6: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %Param.elem: type = unbound_element_type %Param, %i32 [concrete]
// CHECK:STDOUT: %struct_type.y: type = struct_type {.y: %i32} [concrete]
// CHECK:STDOUT: %complete_type.620: <witness> = complete_type_witness %struct_type.y [concrete]
// CHECK:STDOUT: %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT: %Base.947: type = class_type @Base, @Base(%Param) [concrete]
// CHECK:STDOUT: %pattern_type.116: type = pattern_type %Param [concrete]
// CHECK:STDOUT: %x.patt.6d5: %pattern_type.116 = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %Base.elem.3f2: type = unbound_element_type %Base.947, %Param [concrete]
// CHECK:STDOUT: %struct_type.x.301: type = struct_type {.x: %Param} [concrete]
// CHECK:STDOUT: %complete_type.38f: <witness> = complete_type_witness %struct_type.x.301 [concrete]
// CHECK:STDOUT: %Derived.elem: type = unbound_element_type %Derived, %Base.947 [concrete]
// CHECK:STDOUT: %struct_type.base.a1b: type = struct_type {.base: %Base.947} [concrete]
// CHECK:STDOUT: %complete_type.90c: <witness> = complete_type_witness %struct_type.base.a1b [concrete]
// CHECK:STDOUT: %pattern_type.746: type = pattern_type %Derived [concrete]
// CHECK:STDOUT: %d.param_patt: %pattern_type.746 = value_param_pattern [concrete]
// CHECK:STDOUT: %d.patt: %pattern_type.746 = at_binding_pattern d, %d.param_patt [concrete]
// CHECK:STDOUT: %.795: Core.Form = init_form %i32 [concrete]
// CHECK:STDOUT: %return.param_patt.a9a: %pattern_type.6b6 = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt.e1b: %pattern_type.6b6 = return_slot_pattern %return.param_patt.a9a, %i32 [concrete]
// CHECK:STDOUT: %DoubleFieldAccess.type: type = fn_type @DoubleFieldAccess [concrete]
// CHECK:STDOUT: %DoubleFieldAccess: %DoubleFieldAccess.type = struct_value () [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.ac8: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.5e0: %Int.as.Copy.impl.Op.type.ac8 = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.0e0: <witness> = impl_witness imports.%Copy.impl_witness_table.367, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.3f6: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.4f6: %Int.as.Copy.impl.Op.type.3f6 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.0e0) [concrete]
// CHECK:STDOUT: %Copy.WithSelf.Op.type.d09: type = fn_type @Copy.WithSelf.Op, @Copy.WithSelf(%Copy.facet) [concrete]
// CHECK:STDOUT: %.7a6: type = fn_type_with_self_type %Copy.WithSelf.Op.type.d09, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.4f6, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .Copy = %Core.Copy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: %Core.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
// CHECK:STDOUT: %Core.import_ref.cd6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.ac8) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.5e0)]
// CHECK:STDOUT: %Copy.impl_witness_table.367 = impl_witness_table (%Core.import_ref.cd6), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Base = %Base.decl
// CHECK:STDOUT: .Param = %Param.decl
// CHECK:STDOUT: .Derived = %Derived.decl
// CHECK:STDOUT: .DoubleFieldAccess = %DoubleFieldAccess.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Base.decl: %Base.type = class_decl @Base [concrete = constants.%Base.generic] {
// CHECK:STDOUT: %T.patt.loc4_18.1: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_18.2 (constants.%T.patt.d47)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc4_20.1: type = splice_block %.loc4_20.2 [concrete = type] {
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self = constants.%.Self.frozen]
// CHECK:STDOUT: %.loc4_20.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc4_18.2: type = symbolic_binding T, 0 [symbolic = %T.loc4_18.1 (constants.%T.67d)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Param.decl: type = class_decl @Param [concrete = constants.%Param] {} {}
// CHECK:STDOUT: %Derived.decl: type = class_decl @Derived [concrete = constants.%Derived] {} {}
// CHECK:STDOUT: %DoubleFieldAccess.decl: %DoubleFieldAccess.type = fn_decl @DoubleFieldAccess [concrete = constants.%DoubleFieldAccess] {
// CHECK:STDOUT: %d.param_patt: %pattern_type.746 = value_param_pattern [concrete = constants.%d.param_patt]
// CHECK:STDOUT: %d.patt: %pattern_type.746 = at_binding_pattern d, %d.param_patt [concrete = constants.%d.patt]
// CHECK:STDOUT: %return.param_patt: %pattern_type.6b6 = out_param_pattern [concrete = constants.%return.param_patt.a9a]
// CHECK:STDOUT: %return.patt: %pattern_type.6b6 = return_slot_pattern %return.param_patt, %i32 [concrete = constants.%return.patt.e1b]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %.loc16: Core.Form = init_form %i32 [concrete = constants.%.795]
// CHECK:STDOUT: %d.param: %Derived = value_param call_param0
// CHECK:STDOUT: %Derived.ref: type = name_ref Derived, file.%Derived.decl [concrete = constants.%Derived]
// CHECK:STDOUT: %d: %Derived = wrapper_binding d, %d.param
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(%T.loc4_18.2: type) {
// CHECK:STDOUT: %T.patt.loc4_18.2: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_18.2 (constants.%T.patt.d47)]
// CHECK:STDOUT: %T.loc4_18.1: type = symbolic_binding T, 0 [symbolic = %T.loc4_18.1 (constants.%T.67d)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %T.loc4_18.1 [symbolic = %require_complete (constants.%require_complete.944)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %T.loc4_18.1 [symbolic = %pattern_type (constants.%pattern_type.51d)]
// CHECK:STDOUT: %x.patt: @Base.%pattern_type (%pattern_type.51d) = ref_binding_pattern x [symbolic = %x.patt (constants.%x.patt.719)]
// CHECK:STDOUT: %Base: type = class_type @Base, @Base(%T.loc4_18.1) [symbolic = %Base (constants.%Base.798)]
// CHECK:STDOUT: %Base.elem: type = unbound_element_type %Base, %T.loc4_18.1 [symbolic = %Base.elem (constants.%Base.elem.a3c)]
// CHECK:STDOUT: %struct_type.x: type = struct_type {.x: @Base.%T.loc4_18.1 (%T.67d)} [symbolic = %struct_type.x (constants.%struct_type.x.0c5)]
// CHECK:STDOUT: %complete_type.loc6_1.2: <witness> = complete_type_witness %struct_type.x [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.735)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %.loc5: @Base.%Base.elem (%Base.elem.a3c) = field_decl x, element0 [concrete]
// CHECK:STDOUT: %complete_type.loc6_1.1: <witness> = complete_type_witness constants.%struct_type.x.0c5 [symbolic = %complete_type.loc6_1.2 (constants.%complete_type.735)]
// CHECK:STDOUT: complete_type_witness = %complete_type.loc6_1.1
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Base.798
// CHECK:STDOUT: .T = <poisoned>
// CHECK:STDOUT: .x = %.loc5
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Param {
// CHECK:STDOUT: %.loc9: %Param.elem = field_decl y, element0 [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%struct_type.y [concrete = constants.%complete_type.620]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Param
// CHECK:STDOUT: .y = %.loc9
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived {
// CHECK:STDOUT: %Base.ref: %Base.type = name_ref Base, file.%Base.decl [concrete = constants.%Base.generic]
// CHECK:STDOUT: %Param.ref: type = name_ref Param, file.%Param.decl [concrete = constants.%Param]
// CHECK:STDOUT: %Base: type = class_type @Base, @Base(constants.%Param) [concrete = constants.%Base.947]
// CHECK:STDOUT: %.loc13: %Derived.elem = base_decl %Base, element0 [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%struct_type.base.a1b [concrete = constants.%complete_type.90c]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Derived
// CHECK:STDOUT: .Base = <poisoned>
// CHECK:STDOUT: .Param = <poisoned>
// CHECK:STDOUT: .base = %.loc13
// CHECK:STDOUT: .x = <poisoned>
// CHECK:STDOUT: extend %Base
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @DoubleFieldAccess(%d.param: %Derived) -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %d.ref: %Derived = name_ref d, %d
// CHECK:STDOUT: %x.ref: %Base.elem.3f2 = name_ref x, @Base.%.loc5 [concrete = @Base.%.loc5]
// CHECK:STDOUT: %.loc17_11.1: %Base.947 = as_compatible %d.ref
// CHECK:STDOUT: %.loc17_11.2: ref %Base.947 = class_element_access %.loc17_11.1, element0
// CHECK:STDOUT: %.loc17_11.3: ref %Base.947 = converted %d.ref, %.loc17_11.2
// CHECK:STDOUT: %.loc17_11.4: ref %Param = class_element_access %.loc17_11.3, element0
// CHECK:STDOUT: %y.ref: %Param.elem = name_ref y, @Param.%.loc9 [concrete = @Param.%.loc9]
// CHECK:STDOUT: %.loc17_13.1: ref %i32 = class_element_access %.loc17_11.4, element0
// CHECK:STDOUT: %.loc17_13.2: %i32 = acquire_value %.loc17_13.1
// CHECK:STDOUT: %impl.elem0: %.7a6 = impl_witness_access constants.%Copy.impl_witness.0e0, element0 [concrete = constants.%Int.as.Copy.impl.Op.4f6]
// CHECK:STDOUT: %bound_method.loc17_13.1: <bound method> = bound_method %.loc17_13.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc17_13.2: <bound method> = bound_method %.loc17_13.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc17_13.2(%.loc17_13.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T.67d) {
// CHECK:STDOUT: %T.patt.loc4_18.2 => constants.%T.patt.d47
// CHECK:STDOUT: %T.loc4_18.1 => constants.%T.67d
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%Param) {
// CHECK:STDOUT: %T.patt.loc4_18.2 => constants.%T.patt.d47
// CHECK:STDOUT: %T.loc4_18.1 => constants.%Param
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%complete_type.620
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.116
// CHECK:STDOUT: %x.patt => constants.%x.patt.6d5
// CHECK:STDOUT: %Base => constants.%Base.947
// CHECK:STDOUT: %Base.elem => constants.%Base.elem.3f2
// CHECK:STDOUT: %struct_type.x => constants.%struct_type.x.301
// CHECK:STDOUT: %complete_type.loc6_1.2 => constants.%complete_type.38f
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Derived: type = class_type @Derived [concrete]
// CHECK:STDOUT: %Param: type = class_type @Param [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: %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %struct_type.y: type = struct_type {.y: %i32} [concrete]
// CHECK:STDOUT: %complete_type.620: <witness> = complete_type_witness %struct_type.y [concrete]
// CHECK:STDOUT: %T.67d: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %struct_type.x.0c5: type = struct_type {.x: %T.67d} [symbolic]
// CHECK:STDOUT: %complete_type.735: <witness> = complete_type_witness %struct_type.x.0c5 [symbolic]
// CHECK:STDOUT: %Base.798: type = class_type @Base, @Base(%T.67d) [symbolic]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %T.patt.d47: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT: %Base.elem.a3c: type = unbound_element_type %Base.798, %T.67d [symbolic]
// CHECK:STDOUT: %pattern_type.51d: type = pattern_type %T.67d [symbolic]
// CHECK:STDOUT: %x.patt.719: %pattern_type.51d = ref_binding_pattern x [symbolic]
// CHECK:STDOUT: %require_complete.944: <witness> = require_complete_type %T.67d [symbolic]
// CHECK:STDOUT: %Base.947: type = class_type @Base, @Base(%Param) [concrete]
// CHECK:STDOUT: %struct_type.x.301: type = struct_type {.x: %Param} [concrete]
// CHECK:STDOUT: %complete_type.38f: <witness> = complete_type_witness %struct_type.x.301 [concrete]
// CHECK:STDOUT: %Base.elem.3f2: type = unbound_element_type %Base.947, %Param [concrete]
// CHECK:STDOUT: %pattern_type.116: type = pattern_type %Param [concrete]
// CHECK:STDOUT: %x.patt.6d5: %pattern_type.116 = ref_binding_pattern x [concrete]
// CHECK:STDOUT: %struct_type.base.a1b: type = struct_type {.base: %Base.947} [concrete]
// CHECK:STDOUT: %complete_type.90c: <witness> = complete_type_witness %struct_type.base.a1b [concrete]
// CHECK:STDOUT: %pattern_type.746: type = pattern_type %Derived [concrete]
// CHECK:STDOUT: %d.param_patt: %pattern_type.746 = value_param_pattern [concrete]
// CHECK:STDOUT: %d.patt: %pattern_type.746 = at_binding_pattern d, %d.param_patt [concrete]
// CHECK:STDOUT: %.795: Core.Form = init_form %i32 [concrete]
// CHECK:STDOUT: %pattern_type.6b6: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %return.param_patt.a9a: %pattern_type.6b6 = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt.e1b: %pattern_type.6b6 = return_slot_pattern %return.param_patt.a9a, %i32 [concrete]
// CHECK:STDOUT: %ImportedDoubleFieldAccess.type: type = fn_type @ImportedDoubleFieldAccess [concrete]
// CHECK:STDOUT: %ImportedDoubleFieldAccess: %ImportedDoubleFieldAccess.type = struct_value () [concrete]
// CHECK:STDOUT: %Param.elem: type = unbound_element_type %Param, %i32 [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.ac8: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.5e0: %Int.as.Copy.impl.Op.type.ac8 = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.0e0: <witness> = impl_witness imports.%Copy.impl_witness_table.367, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.3f6: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.4f6: %Int.as.Copy.impl.Op.type.3f6 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.0e0) [concrete]
// CHECK:STDOUT: %Copy.WithSelf.Op.type.d09: type = fn_type @Copy.WithSelf.Op, @Copy.WithSelf(%Copy.facet) [concrete]
// CHECK:STDOUT: %.7a6: type = fn_type_with_self_type %Copy.WithSelf.Op.type.d09, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.4f6, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.Base = import_ref Main//extend_generic_base, Base, unloaded
// CHECK:STDOUT: %Main.Param = import_ref Main//extend_generic_base, Param, unloaded
// CHECK:STDOUT: %Main.Derived: type = import_ref Main//extend_generic_base, Derived, loaded [concrete = constants.%Derived]
// CHECK:STDOUT: %Main.DoubleFieldAccess = import_ref Main//extend_generic_base, DoubleFieldAccess, unloaded
// CHECK:STDOUT: %Core.048aa3.1: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: .Copy = %Core.Copy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Main.import_ref.cb0: <witness> = import_ref Main//extend_generic_base, loc10_1, loaded [concrete = constants.%complete_type.620]
// CHECK:STDOUT: %Main.import_ref.61b = import_ref Main//extend_generic_base, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: %Main.import_ref.573: %Param.elem = import_ref Main//extend_generic_base, loc9_8, loaded [concrete = %.8bf]
// CHECK:STDOUT: %Main.import_ref.7e3: <witness> = import_ref Main//extend_generic_base, loc6_1, loaded [symbolic = @Base.%complete_type (constants.%complete_type.735)]
// CHECK:STDOUT: %Main.import_ref.821 = import_ref Main//extend_generic_base, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: %Main.import_ref.da1: @Base.%Base.elem (%Base.elem.a3c) = import_ref Main//extend_generic_base, loc5_8, loaded [concrete = %.866]
// CHECK:STDOUT: %Main.import_ref.b3b: type = import_ref Main//extend_generic_base, loc4_18, loaded [symbolic = @Base.%T (constants.%T.67d)]
// CHECK:STDOUT: %Main.import_ref.58d: <witness> = import_ref Main//extend_generic_base, loc14_1, loaded [concrete = constants.%complete_type.90c]
// CHECK:STDOUT: %Main.import_ref.87c = import_ref Main//extend_generic_base, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: %Main.import_ref.4a4 = import_ref Main//extend_generic_base, loc13_27, unloaded
// CHECK:STDOUT: %Main.import_ref.c669b4.2: type = import_ref Main//extend_generic_base, loc13_26, loaded [concrete = constants.%Base.947]
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: %.866: @Base.%Base.elem (%Base.elem.a3c) = field_decl x, element0 [concrete]
// CHECK:STDOUT: %.8bf: %Param.elem = field_decl y, element0 [concrete]
// CHECK:STDOUT: %Core.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
// CHECK:STDOUT: %Core.import_ref.cd6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.ac8) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.5e0)]
// CHECK:STDOUT: %Copy.impl_witness_table.367 = impl_witness_table (%Core.import_ref.cd6), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Base = imports.%Main.Base
// CHECK:STDOUT: .Param = imports.%Main.Param
// CHECK:STDOUT: .Derived = imports.%Main.Derived
// CHECK:STDOUT: .DoubleFieldAccess = imports.%Main.DoubleFieldAccess
// CHECK:STDOUT: .Core = imports.%Core.048aa3.1
// CHECK:STDOUT: .ImportedDoubleFieldAccess = %ImportedDoubleFieldAccess.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %ImportedDoubleFieldAccess.decl: %ImportedDoubleFieldAccess.type = fn_decl @ImportedDoubleFieldAccess [concrete = constants.%ImportedDoubleFieldAccess] {
// CHECK:STDOUT: %d.param_patt: %pattern_type.746 = value_param_pattern [concrete = constants.%d.param_patt]
// CHECK:STDOUT: %d.patt: %pattern_type.746 = at_binding_pattern d, %d.param_patt [concrete = constants.%d.patt]
// CHECK:STDOUT: %return.param_patt: %pattern_type.6b6 = out_param_pattern [concrete = constants.%return.param_patt.a9a]
// CHECK:STDOUT: %return.patt: %pattern_type.6b6 = return_slot_pattern %return.param_patt, %i32 [concrete = constants.%return.patt.e1b]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %.loc6: Core.Form = init_form %i32 [concrete = constants.%.795]
// CHECK:STDOUT: %d.param: %Derived = value_param call_param0
// CHECK:STDOUT: %Derived.ref: type = name_ref Derived, imports.%Main.Derived [concrete = constants.%Derived]
// CHECK:STDOUT: %d: %Derived = wrapper_binding d, %d.param
// CHECK:STDOUT: %return.param: ref %i32 = out_param call_param1
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Derived [from "extend_generic_base.carbon"] {
// CHECK:STDOUT: complete_type_witness = imports.%Main.import_ref.58d
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Main.import_ref.87c
// CHECK:STDOUT: .base = imports.%Main.import_ref.4a4
// CHECK:STDOUT: .x = <poisoned>
// CHECK:STDOUT: extend imports.%Main.import_ref.c669b4.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Param [from "extend_generic_base.carbon"] {
// CHECK:STDOUT: complete_type_witness = imports.%Main.import_ref.cb0
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Main.import_ref.61b
// CHECK:STDOUT: .y = imports.%Main.import_ref.573
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @Base(imports.%Main.import_ref.b3b: type) [from "extend_generic_base.carbon"] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt.d47)]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic = %T (constants.%T.67d)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %T [symbolic = %require_complete (constants.%require_complete.944)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %T [symbolic = %pattern_type (constants.%pattern_type.51d)]
// CHECK:STDOUT: %x.patt: @Base.%pattern_type (%pattern_type.51d) = ref_binding_pattern x [symbolic = %x.patt (constants.%x.patt.719)]
// CHECK:STDOUT: %Base: type = class_type @Base, @Base(%T) [symbolic = %Base (constants.%Base.798)]
// CHECK:STDOUT: %Base.elem: type = unbound_element_type %Base, %T [symbolic = %Base.elem (constants.%Base.elem.a3c)]
// CHECK:STDOUT: %struct_type.x: type = struct_type {.x: @Base.%T (%T.67d)} [symbolic = %struct_type.x (constants.%struct_type.x.0c5)]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %struct_type.x [symbolic = %complete_type (constants.%complete_type.735)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: complete_type_witness = imports.%Main.import_ref.7e3
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Main.import_ref.821
// CHECK:STDOUT: .x = imports.%Main.import_ref.da1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @ImportedDoubleFieldAccess(%d.param: %Derived) -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %d.ref: %Derived = name_ref d, %d
// CHECK:STDOUT: %x.ref: %Base.elem.3f2 = name_ref x, imports.%Main.import_ref.da1 [concrete = imports.%.866]
// CHECK:STDOUT: %.loc7_11.1: %Base.947 = as_compatible %d.ref
// CHECK:STDOUT: %.loc7_11.2: ref %Base.947 = class_element_access %.loc7_11.1, element0
// CHECK:STDOUT: %.loc7_11.3: ref %Base.947 = converted %d.ref, %.loc7_11.2
// CHECK:STDOUT: %.loc7_11.4: ref %Param = class_element_access %.loc7_11.3, element0
// CHECK:STDOUT: %y.ref: %Param.elem = name_ref y, imports.%Main.import_ref.573 [concrete = imports.%.8bf]
// CHECK:STDOUT: %.loc7_13.1: ref %i32 = class_element_access %.loc7_11.4, element0
// CHECK:STDOUT: %.loc7_13.2: %i32 = acquire_value %.loc7_13.1
// CHECK:STDOUT: %impl.elem0: %.7a6 = impl_witness_access constants.%Copy.impl_witness.0e0, element0 [concrete = constants.%Int.as.Copy.impl.Op.4f6]
// CHECK:STDOUT: %bound_method.loc7_13.1: <bound method> = bound_method %.loc7_13.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc7_13.2: <bound method> = bound_method %.loc7_13.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc7_13.2(%.loc7_13.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%T.67d) {
// CHECK:STDOUT: %T.patt => constants.%T.patt.d47
// CHECK:STDOUT: %T => constants.%T.67d
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Base(constants.%Param) {
// CHECK:STDOUT: %T.patt => constants.%T.patt.d47
// CHECK:STDOUT: %T => constants.%Param
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%complete_type.620
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.116
// CHECK:STDOUT: %x.patt => constants.%x.patt.6d5
// CHECK:STDOUT: %Base => constants.%Base.947
// CHECK:STDOUT: %Base.elem => constants.%Base.elem.3f2
// CHECK:STDOUT: %struct_type.x => constants.%struct_type.x.301
// CHECK:STDOUT: %complete_type => constants.%complete_type.38f
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_extend_symbolic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT: %pattern_type: type = pattern_type type [concrete]
// CHECK:STDOUT: %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %C.type: type = generic_class_type @C [concrete]
// CHECK:STDOUT: %C.generic: %C.type = struct_value () [concrete]
// CHECK:STDOUT: %C.1d0: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %T [symbolic]
// 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: %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: %C.a43: type = class_type @C, @C(%X) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .X = %X.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %C.decl: %C.type = class_decl @C [concrete = constants.%C.generic] {
// CHECK:STDOUT: %T.patt.loc4_10.1: %pattern_type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_10.2 (constants.%T.patt)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc4_12.1: type = splice_block %.loc4_12.2 [concrete = type] {
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self = constants.%.Self.frozen]
// CHECK:STDOUT: %.loc4_12.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc4_10.2: type = symbolic_binding T, 0 [symbolic = %T.loc4_10.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %X.decl: type = class_decl @X [concrete = constants.%X] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(%T.loc4_10.2: type) {
// CHECK:STDOUT: %T.patt.loc4_10.2: %pattern_type = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc4_10.2 (constants.%T.patt)]
// CHECK:STDOUT: %T.loc4_10.1: type = symbolic_binding T, 0 [symbolic = %T.loc4_10.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %T.loc4_10.1 [symbolic = %require_complete (constants.%require_complete)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %T.ref: type = name_ref T, %T.loc4_10.2 [symbolic = %T.loc4_10.1 (constants.%T)]
// CHECK:STDOUT: %.loc9: <error> = base_decl <error>, element0 [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness <error> [concrete = <error>]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C.1d0
// CHECK:STDOUT: .T = <poisoned>
// CHECK:STDOUT: .base = %.loc9
// CHECK:STDOUT: .G = <poisoned>
// CHECK:STDOUT: has_error
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @X {
// CHECK:STDOUT: %X.G.decl: %X.G.type = fn_decl @X.G [concrete = constants.%X.G] {} {}
// 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.%X
// CHECK:STDOUT: .G = %X.G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @X.G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
// CHECK:STDOUT: %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %C: type = class_type @C, @C(constants.%X) [concrete = constants.%C.a43]
// CHECK:STDOUT: %G.ref: <error> = name_ref G, <error> [concrete = <error>]
// CHECK:STDOUT: return
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT: %T.patt.loc4_10.2 => constants.%T.patt
// CHECK:STDOUT: %T.loc4_10.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%X) {
// CHECK:STDOUT: %T.patt.loc4_10.2 => constants.%T.patt
// CHECK:STDOUT: %T.loc4_10.1 => constants.%X
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- extend_generic_symbolic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 0 [symbolic]
// CHECK:STDOUT: %U: type = symbolic_binding U, 0 [symbolic]
// CHECK:STDOUT: %X.type: type = generic_class_type @X [concrete]
// CHECK:STDOUT: %X.generic: %X.type = struct_value () [concrete]
// CHECK:STDOUT: %X.da69a4.1: type = class_type @X, @X(%U) [symbolic]
// CHECK:STDOUT: %.184: Core.Form = init_form %U [symbolic]
// CHECK:STDOUT: %pattern_type.51d: type = pattern_type %U [symbolic]
// CHECK:STDOUT: %return.param_patt.41d: %pattern_type.51d = out_param_pattern [symbolic]
// CHECK:STDOUT: %return.patt.b39: %pattern_type.51d = return_slot_pattern %return.param_patt.41d, %U [symbolic]
// CHECK:STDOUT: %X.G.type.4063b8.1: type = fn_type @X.G, @X(%U) [symbolic]
// CHECK:STDOUT: %X.G.ff3d53.1: %X.G.type.4063b8.1 = 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: %require_complete.944: <witness> = require_complete_type %U [symbolic]
// CHECK:STDOUT: %X.G.specific_fn.196: <specific function> = specific_function %X.G.ff3d53.1, @X.G(%U) [symbolic]
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %C.type: type = generic_class_type @C [concrete]
// CHECK:STDOUT: %C.generic: %C.type = struct_value () [concrete]
// CHECK:STDOUT: %C.1d0: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT: %X.da69a4.2: type = class_type @X, @X(%T) [symbolic]
// CHECK:STDOUT: %X.G.type.4063b8.2: type = fn_type @X.G, @X(%T) [symbolic]
// CHECK:STDOUT: %X.G.ff3d53.2: %X.G.type.4063b8.2 = struct_value () [symbolic]
// CHECK:STDOUT: %require_complete.ec9: <witness> = require_complete_type %X.da69a4.2 [symbolic]
// CHECK:STDOUT: %C.elem.bbb: type = unbound_element_type %C.1d0, %X.da69a4.2 [symbolic]
// CHECK:STDOUT: %struct_type.base.8ee: type = struct_type {.base: %X.da69a4.2} [symbolic]
// CHECK:STDOUT: %complete_type.584: <witness> = complete_type_witness %struct_type.base.8ee [symbolic]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %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: %i32.builtin: type = int_type signed, %int_32 [concrete]
// CHECK:STDOUT: %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
// CHECK:STDOUT: %pattern_type.6b6: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %i.patt: %pattern_type.6b6 = value_binding_pattern i [concrete]
// CHECK:STDOUT: %C.3b7: type = class_type @C, @C(%i32) [concrete]
// CHECK:STDOUT: %X.c03: type = class_type @X, @X(%i32) [concrete]
// CHECK:STDOUT: %X.G.type.aea: type = fn_type @X.G, @X(%i32) [concrete]
// CHECK:STDOUT: %X.G.df3: %X.G.type.aea = struct_value () [concrete]
// CHECK:STDOUT: %C.elem.433: type = unbound_element_type %C.3b7, %X.c03 [concrete]
// CHECK:STDOUT: %struct_type.base.013: type = struct_type {.base: %X.c03} [concrete]
// CHECK:STDOUT: %complete_type.3c0: <witness> = complete_type_witness %struct_type.base.013 [concrete]
// CHECK:STDOUT: %.795: Core.Form = init_form %i32 [concrete]
// CHECK:STDOUT: %return.param_patt.a9a: %pattern_type.6b6 = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt.e1b: %pattern_type.6b6 = return_slot_pattern %return.param_patt.a9a, %i32 [concrete]
// CHECK:STDOUT: %X.G.specific_fn.2b6: <specific function> = specific_function %X.G.df3, @X.G(%i32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .X = %X.decl
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %X.decl: %X.type = class_decl @X [concrete = constants.%X.generic] {
// CHECK:STDOUT: %U.patt.loc4_15.1: %pattern_type.98f = symbolic_binding_pattern U, 0 [symbolic = %U.patt.loc4_15.2 (constants.%U.patt)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc4_17.1: type = splice_block %.loc4_17.2 [concrete = type] {
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self = constants.%.Self.frozen]
// CHECK:STDOUT: %.loc4_17.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %U.loc4_15.2: type = symbolic_binding U, 0 [symbolic = %U.loc4_15.1 (constants.%U)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: %C.type = class_decl @C [concrete = constants.%C.generic] {
// CHECK:STDOUT: %T.patt.loc8_10.1: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc8_10.2 (constants.%T.patt)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc8_12.1: type = splice_block %.loc8_12.2 [concrete = type] {
// CHECK:STDOUT: %.Self.frozen: %type = symbolic_binding .Self [symbolic_self = constants.%.Self.frozen]
// CHECK:STDOUT: %.loc8_12.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc8_10.2: type = symbolic_binding T, 0 [symbolic = %T.loc8_10.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @X(%U.loc4_15.2: type) {
// CHECK:STDOUT: %U.patt.loc4_15.2: %pattern_type.98f = symbolic_binding_pattern U, 0 [symbolic = %U.patt.loc4_15.2 (constants.%U.patt)]
// CHECK:STDOUT: %U.loc4_15.1: type = symbolic_binding U, 0 [symbolic = %U.loc4_15.1 (constants.%U)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type: type = fn_type @X.G, @X(%U.loc4_15.1) [symbolic = %X.G.type (constants.%X.G.type.4063b8.1)]
// CHECK:STDOUT: %X.G: @X.%X.G.type (%X.G.type.4063b8.1) = struct_value () [symbolic = %X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %X.G.decl: @X.%X.G.type (%X.G.type.4063b8.1) = fn_decl @X.G [symbolic = @X.%X.G (constants.%X.G.ff3d53.1)] {
// CHECK:STDOUT: %return.param_patt.loc5_13.1: @X.G.%pattern_type (%pattern_type.51d) = out_param_pattern [symbolic = %return.param_patt.loc5_13.2 (constants.%return.param_patt.41d)]
// CHECK:STDOUT: %return.patt.loc5_10.1: @X.G.%pattern_type (%pattern_type.51d) = return_slot_pattern %return.param_patt.loc5_13.1, %U.ref [symbolic = %return.patt.loc5_10.2 (constants.%return.patt.b39)]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %U.ref: type = name_ref U, @X.%U.loc4_15.2 [symbolic = %U (constants.%U)]
// CHECK:STDOUT: %.loc5_13.3: Core.Form = init_form %U.ref [symbolic = %.loc5_13.2 (constants.%.184)]
// CHECK:STDOUT: %return.param: ref @X.G.%U (%U) = out_param call_param0
// CHECK:STDOUT: %return: ref @X.G.%U (%U) = return_slot %return.param
// CHECK:STDOUT: }
// 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:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%X.da69a4.1
// CHECK:STDOUT: .U = <poisoned>
// CHECK:STDOUT: .G = %X.G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(%T.loc8_10.2: type) {
// CHECK:STDOUT: %T.patt.loc8_10.2: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt.loc8_10.2 (constants.%T.patt)]
// CHECK:STDOUT: %T.loc8_10.1: type = symbolic_binding T, 0 [symbolic = %T.loc8_10.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.loc9_19.2: type = class_type @X, @X(%T.loc8_10.1) [symbolic = %X.loc9_19.2 (constants.%X.da69a4.2)]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %X.loc9_19.2 [symbolic = %require_complete (constants.%require_complete.ec9)]
// CHECK:STDOUT: %C: type = class_type @C, @C(%T.loc8_10.1) [symbolic = %C (constants.%C.1d0)]
// CHECK:STDOUT: %C.elem: type = unbound_element_type %C, %X.loc9_19.2 [symbolic = %C.elem (constants.%C.elem.bbb)]
// CHECK:STDOUT: %struct_type.base: type = struct_type {.base: @C.%X.loc9_19.2 (%X.da69a4.2)} [symbolic = %struct_type.base (constants.%struct_type.base.8ee)]
// CHECK:STDOUT: %complete_type.loc10_1.2: <witness> = complete_type_witness %struct_type.base [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.584)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %X.ref: %X.type = name_ref X, file.%X.decl [concrete = constants.%X.generic]
// CHECK:STDOUT: %T.ref: type = name_ref T, %T.loc8_10.2 [symbolic = %T.loc8_10.1 (constants.%T)]
// CHECK:STDOUT: %X.loc9_19.1: type = class_type @X, @X(constants.%T) [symbolic = %X.loc9_19.2 (constants.%X.da69a4.2)]
// CHECK:STDOUT: %.loc9: @C.%C.elem (%C.elem.bbb) = base_decl %X.loc9_19.1, element0 [concrete]
// CHECK:STDOUT: %complete_type.loc10_1.1: <witness> = complete_type_witness constants.%struct_type.base.8ee [symbolic = %complete_type.loc10_1.2 (constants.%complete_type.584)]
// CHECK:STDOUT: complete_type_witness = %complete_type.loc10_1.1
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C.1d0
// CHECK:STDOUT: .X = <poisoned>
// CHECK:STDOUT: .T = <poisoned>
// CHECK:STDOUT: .base = %.loc9
// CHECK:STDOUT: .G = <poisoned>
// CHECK:STDOUT: extend %X.loc9_19.1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @X.G(@X.%U.loc4_15.2: type) {
// CHECK:STDOUT: %U: type = symbolic_binding U, 0 [symbolic = %U (constants.%U)]
// CHECK:STDOUT: %.loc5_13.2: Core.Form = init_form %U [symbolic = %.loc5_13.2 (constants.%.184)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %U [symbolic = %pattern_type (constants.%pattern_type.51d)]
// CHECK:STDOUT: %return.param_patt.loc5_13.2: @X.G.%pattern_type (%pattern_type.51d) = out_param_pattern [symbolic = %return.param_patt.loc5_13.2 (constants.%return.param_patt.41d)]
// CHECK:STDOUT: %return.patt.loc5_10.2: @X.G.%pattern_type (%pattern_type.51d) = return_slot_pattern %return.param_patt.loc5_13.2, %U [symbolic = %return.patt.loc5_10.2 (constants.%return.patt.b39)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %U [symbolic = %require_complete (constants.%require_complete.944)]
// CHECK:STDOUT: %X.G.type: type = fn_type @X.G, @X(%U) [symbolic = %X.G.type (constants.%X.G.type.4063b8.1)]
// CHECK:STDOUT: %X.G: @X.G.%X.G.type (%X.G.type.4063b8.1) = struct_value () [symbolic = %X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT: %X.G.specific_fn.loc5_24.2: <specific function> = specific_function %X.G, @X.G(%U) [symbolic = %X.G.specific_fn.loc5_24.2 (constants.%X.G.specific_fn.196)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn() -> out %return.param: @X.G.%U (%U) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc5_24: @X.G.%X.G.type (%X.G.type.4063b8.1) = specific_constant @X.%X.G.decl, @X(constants.%U) [symbolic = %X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT: %G.ref: @X.G.%X.G.type (%X.G.type.4063b8.1) = name_ref G, %.loc5_24 [symbolic = %X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT: %X.G.specific_fn.loc5_24.1: <specific function> = specific_function %G.ref, @X.G(constants.%U) [symbolic = %X.G.specific_fn.loc5_24.2 (constants.%X.G.specific_fn.196)]
// CHECK:STDOUT: %.loc5_13.1: ref @X.G.%U (%U) = splice_block %return.param {}
// CHECK:STDOUT: %X.G.call: init @X.G.%U (%U) to %.loc5_13.1 = call %X.G.specific_fn.loc5_24.1()
// CHECK:STDOUT: return %X.G.call to %return.param
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
// CHECK:STDOUT: %i32.loc13_25: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %C: type = class_type @C, @C(constants.%i32) [concrete = constants.%C.3b7]
// CHECK:STDOUT: %.loc13_29: %X.G.type.aea = specific_constant @X.%X.G.decl, @X(constants.%i32) [concrete = constants.%X.G.df3]
// CHECK:STDOUT: %G.ref: %X.G.type.aea = name_ref G, %.loc13_29 [concrete = constants.%X.G.df3]
// CHECK:STDOUT: %X.G.specific_fn: <specific function> = specific_function %G.ref, @X.G(constants.%i32) [concrete = constants.%X.G.specific_fn.2b6]
// CHECK:STDOUT: %X.G.call: init %i32 = call %X.G.specific_fn()
// CHECK:STDOUT: %.loc13_32.1: %i32 = value_of_initializer %X.G.call
// CHECK:STDOUT: %.loc13_32.2: %i32 = converted %X.G.call, %.loc13_32.1
// CHECK:STDOUT: %i32.loc13_17: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %i: %i32 = wrapper_binding i, %.loc13_32.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %i.patt: %pattern_type.6b6 = value_binding_pattern i [concrete = constants.%i.patt]
// CHECK:STDOUT: }
// CHECK:STDOUT: return
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%U) {
// CHECK:STDOUT: %U.patt.loc4_15.2 => constants.%U.patt
// CHECK:STDOUT: %U.loc4_15.1 => constants.%U
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.4063b8.1
// CHECK:STDOUT: %X.G => constants.%X.G.ff3d53.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X.G(constants.%U) {
// CHECK:STDOUT: %U => constants.%U
// CHECK:STDOUT: %.loc5_13.2 => constants.%.184
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.51d
// CHECK:STDOUT: %return.param_patt.loc5_13.2 => constants.%return.param_patt.41d
// CHECK:STDOUT: %return.patt.loc5_10.2 => constants.%return.patt.b39
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%require_complete.944
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.4063b8.1
// CHECK:STDOUT: %X.G => constants.%X.G.ff3d53.1
// CHECK:STDOUT: %X.G.specific_fn.loc5_24.2 => constants.%X.G.specific_fn.196
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT: %T.patt.loc8_10.2 => constants.%T.patt
// CHECK:STDOUT: %T.loc8_10.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%T) {
// CHECK:STDOUT: %U.patt.loc4_15.2 => constants.%U.patt
// CHECK:STDOUT: %U.loc4_15.1 => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.4063b8.2
// CHECK:STDOUT: %X.G => constants.%X.G.ff3d53.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%i32) {
// CHECK:STDOUT: %T.patt.loc8_10.2 => constants.%T.patt
// CHECK:STDOUT: %T.loc8_10.1 => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.loc9_19.2 => constants.%X.c03
// CHECK:STDOUT: %require_complete => constants.%complete_type.357
// CHECK:STDOUT: %C => constants.%C.3b7
// CHECK:STDOUT: %C.elem => constants.%C.elem.433
// CHECK:STDOUT: %struct_type.base => constants.%struct_type.base.013
// CHECK:STDOUT: %complete_type.loc10_1.2 => constants.%complete_type.3c0
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%i32) {
// CHECK:STDOUT: %U.patt.loc4_15.2 => constants.%U.patt
// CHECK:STDOUT: %U.loc4_15.1 => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.aea
// CHECK:STDOUT: %X.G => constants.%X.G.df3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X.G(constants.%i32) {
// CHECK:STDOUT: %U => constants.%i32
// CHECK:STDOUT: %.loc5_13.2 => constants.%.795
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.6b6
// CHECK:STDOUT: %return.param_patt.loc5_13.2 => constants.%return.param_patt.a9a
// CHECK:STDOUT: %return.patt.loc5_10.2 => constants.%return.patt.e1b
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%complete_type.f8a
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.aea
// CHECK:STDOUT: %X.G => constants.%X.G.df3
// CHECK:STDOUT: %X.G.specific_fn.loc5_24.2 => constants.%X.G.specific_fn.2b6
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_extend_generic_symbolic_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %H.type: type = fn_type @H [concrete]
// CHECK:STDOUT: %H: %H.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: %i32.builtin: type = int_type signed, %int_32 [concrete]
// CHECK:STDOUT: %complete_type.f8a: <witness> = complete_type_witness %i32.builtin [concrete]
// CHECK:STDOUT: %pattern_type.6b6: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %j.patt: %pattern_type.6b6 = value_binding_pattern j [concrete]
// CHECK:STDOUT: %C.type: type = generic_class_type @C [concrete]
// CHECK:STDOUT: %C.generic: %C.type = struct_value () [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [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: %U: type = symbolic_binding U, 0 [symbolic]
// CHECK:STDOUT: %X.G.type.4063b8.1: type = fn_type @X.G, @X(%U) [symbolic]
// CHECK:STDOUT: %X.G.ff3d53.1: %X.G.type.4063b8.1 = struct_value () [symbolic]
// CHECK:STDOUT: %pattern_type.51d: type = pattern_type %U [symbolic]
// CHECK:STDOUT: %return.param_patt.41d: %pattern_type.51d = out_param_pattern [symbolic]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 0 [symbolic]
// CHECK:STDOUT: %return.patt.c39: %pattern_type.51d = return_slot_pattern %return.param_patt.41d, invalid [symbolic]
// CHECK:STDOUT: %.184: Core.Form = init_form %U [symbolic]
// CHECK:STDOUT: %X.G.specific_fn.196: <specific function> = specific_function %X.G.ff3d53.1, @X.G(%U) [symbolic]
// CHECK:STDOUT: %require_complete.944: <witness> = require_complete_type %U [symbolic]
// CHECK:STDOUT: %X.da69a4.2: type = class_type @X, @X(%T) [symbolic]
// CHECK:STDOUT: %X.G.type.4063b8.2: type = fn_type @X.G, @X(%T) [symbolic]
// CHECK:STDOUT: %X.G.ff3d53.2: %X.G.type.4063b8.2 = struct_value () [symbolic]
// CHECK:STDOUT: %C.1d0: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic]
// CHECK:STDOUT: %C.elem.bbb: type = unbound_element_type %C.1d0, %X.da69a4.2 [symbolic]
// CHECK:STDOUT: %struct_type.base.8ee: type = struct_type {.base: %X.da69a4.2} [symbolic]
// CHECK:STDOUT: %complete_type.584: <witness> = complete_type_witness %struct_type.base.8ee [symbolic]
// CHECK:STDOUT: %require_complete.ec9: <witness> = require_complete_type %X.da69a4.2 [symbolic]
// CHECK:STDOUT: %C.3b7: type = class_type @C, @C(%i32) [concrete]
// CHECK:STDOUT: %X.c03: type = class_type @X, @X(%i32) [concrete]
// CHECK:STDOUT: %X.G.type.aea: type = fn_type @X.G, @X(%i32) [concrete]
// CHECK:STDOUT: %X.G.df3: %X.G.type.aea = struct_value () [concrete]
// CHECK:STDOUT: %C.elem.433: type = unbound_element_type %C.3b7, %X.c03 [concrete]
// CHECK:STDOUT: %struct_type.base.013: type = struct_type {.base: %X.c03} [concrete]
// CHECK:STDOUT: %complete_type.3c0: <witness> = complete_type_witness %struct_type.base.013 [concrete]
// CHECK:STDOUT: %.795: Core.Form = init_form %i32 [concrete]
// CHECK:STDOUT: %return.param_patt.a9a: %pattern_type.6b6 = out_param_pattern [concrete]
// CHECK:STDOUT: %return.patt.0bc: %pattern_type.6b6 = return_slot_pattern %return.param_patt.a9a, invalid [concrete]
// CHECK:STDOUT: %X.G.specific_fn.2b6: <specific function> = specific_function %X.G.df3, @X.G(%i32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.X = import_ref Main//extend_generic_symbolic_base, X, unloaded
// CHECK:STDOUT: %Main.C: %C.type = import_ref Main//extend_generic_symbolic_base, C, loaded [concrete = constants.%C.generic]
// CHECK:STDOUT: %Main.F = import_ref Main//extend_generic_symbolic_base, F, unloaded
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: %Main.import_ref.b3bc94.1: type = import_ref Main//extend_generic_symbolic_base, loc4_15, loaded [symbolic = @X.%U (constants.%U)]
// CHECK:STDOUT: %Main.import_ref.8f2: <witness> = import_ref Main//extend_generic_symbolic_base, loc6_1, loaded [concrete = constants.%complete_type.357]
// CHECK:STDOUT: %Main.import_ref.8d6 = import_ref Main//extend_generic_symbolic_base, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: %Main.import_ref.2c0: @X.%X.G.type (%X.G.type.4063b8.1) = import_ref Main//extend_generic_symbolic_base, loc5_15, loaded [symbolic = @X.%X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT: %Main.import_ref.b3bc94.2: type = import_ref Main//extend_generic_symbolic_base, loc4_15, loaded [symbolic = @X.%U (constants.%U)]
// CHECK:STDOUT: %Main.import_ref.f1c: <witness> = import_ref Main//extend_generic_symbolic_base, loc10_1, loaded [symbolic = @C.%complete_type (constants.%complete_type.584)]
// CHECK:STDOUT: %Main.import_ref.189 = import_ref Main//extend_generic_symbolic_base, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: %Main.import_ref.799 = import_ref Main//extend_generic_symbolic_base, loc9_20, unloaded
// CHECK:STDOUT: %Main.import_ref.338d56.2: type = import_ref Main//extend_generic_symbolic_base, loc9_19, loaded [symbolic = @C.%X (constants.%X.da69a4.2)]
// CHECK:STDOUT: %Main.import_ref.b3bc94.3: type = import_ref Main//extend_generic_symbolic_base, loc8_10, loaded [symbolic = @C.%T (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .X = imports.%Main.X
// CHECK:STDOUT: .C = imports.%Main.C
// CHECK:STDOUT: .F = imports.%Main.F
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .H = %H.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %H.decl: %H.type = fn_decl @H [concrete = constants.%H] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(imports.%Main.import_ref.b3bc94.3: type) [from "extend_generic_symbolic_base.carbon"] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [symbolic = %T.patt (constants.%T.patt)]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X: type = class_type @X, @X(%T) [symbolic = %X (constants.%X.da69a4.2)]
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %X [symbolic = %require_complete (constants.%require_complete.ec9)]
// CHECK:STDOUT: %C: type = class_type @C, @C(%T) [symbolic = %C (constants.%C.1d0)]
// CHECK:STDOUT: %C.elem: type = unbound_element_type %C, %X [symbolic = %C.elem (constants.%C.elem.bbb)]
// CHECK:STDOUT: %struct_type.base: type = struct_type {.base: @C.%X (%X.da69a4.2)} [symbolic = %struct_type.base (constants.%struct_type.base.8ee)]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %struct_type.base [symbolic = %complete_type (constants.%complete_type.584)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: complete_type_witness = imports.%Main.import_ref.f1c
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Main.import_ref.189
// CHECK:STDOUT: .base = imports.%Main.import_ref.799
// CHECK:STDOUT: .G = <poisoned>
// CHECK:STDOUT: extend imports.%Main.import_ref.338d56.2
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @X(imports.%Main.import_ref.b3bc94.2: type) [from "extend_generic_symbolic_base.carbon"] {
// CHECK:STDOUT: %U.patt: %pattern_type.98f = symbolic_binding_pattern U, 0 [symbolic = %U.patt (constants.%U.patt)]
// CHECK:STDOUT: %U: type = symbolic_binding U, 0 [symbolic = %U (constants.%U)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type: type = fn_type @X.G, @X(%U) [symbolic = %X.G.type (constants.%X.G.type.4063b8.1)]
// CHECK:STDOUT: %X.G: @X.%X.G.type (%X.G.type.4063b8.1) = struct_value () [symbolic = %X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: complete_type_witness = imports.%Main.import_ref.8f2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Main.import_ref.8d6
// CHECK:STDOUT: .G = imports.%Main.import_ref.2c0
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @H() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %C.ref: %C.type = name_ref C, imports.%Main.C [concrete = constants.%C.generic]
// CHECK:STDOUT: %i32.loc7_25: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %C: type = class_type @C, @C(constants.%i32) [concrete = constants.%C.3b7]
// CHECK:STDOUT: %.loc7_29: %X.G.type.aea = specific_constant imports.%Main.import_ref.2c0, @X(constants.%i32) [concrete = constants.%X.G.df3]
// CHECK:STDOUT: %G.ref: %X.G.type.aea = name_ref G, %.loc7_29 [concrete = constants.%X.G.df3]
// CHECK:STDOUT: %X.G.specific_fn: <specific function> = specific_function %G.ref, @X.G(constants.%i32) [concrete = constants.%X.G.specific_fn.2b6]
// CHECK:STDOUT: %X.G.call: init %i32 = call %X.G.specific_fn()
// CHECK:STDOUT: %.loc7_32.1: %i32 = value_of_initializer %X.G.call
// CHECK:STDOUT: %.loc7_32.2: %i32 = converted %X.G.call, %.loc7_32.1
// CHECK:STDOUT: %i32.loc7_17: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT: %j: %i32 = wrapper_binding j, %.loc7_32.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %j.patt: %pattern_type.6b6 = value_binding_pattern j [concrete = constants.%j.patt]
// CHECK:STDOUT: }
// CHECK:STDOUT: return
// CHECK:STDOUT:
// CHECK:STDOUT: !observes:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @X.G(imports.%Main.import_ref.b3bc94.1: type) [from "extend_generic_symbolic_base.carbon"] {
// CHECK:STDOUT: %U: type = symbolic_binding U, 0 [symbolic = %U (constants.%U)]
// CHECK:STDOUT: %.1: Core.Form = init_form %U [symbolic = %.1 (constants.%.184)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %U [symbolic = %pattern_type (constants.%pattern_type.51d)]
// CHECK:STDOUT: %return.param_patt: @X.G.%pattern_type (%pattern_type.51d) = out_param_pattern [symbolic = %return.param_patt (constants.%return.param_patt.41d)]
// CHECK:STDOUT: %return.patt: @X.G.%pattern_type (%pattern_type.51d) = return_slot_pattern %return.param_patt, invalid [symbolic = %return.patt (constants.%return.patt.c39)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %U [symbolic = %require_complete (constants.%require_complete.944)]
// CHECK:STDOUT: %X.G.type: type = fn_type @X.G, @X(%U) [symbolic = %X.G.type (constants.%X.G.type.4063b8.1)]
// CHECK:STDOUT: %X.G: @X.G.%X.G.type (%X.G.type.4063b8.1) = struct_value () [symbolic = %X.G (constants.%X.G.ff3d53.1)]
// CHECK:STDOUT: %X.G.specific_fn: <specific function> = specific_function %X.G, @X.G(%U) [symbolic = %X.G.specific_fn (constants.%X.G.specific_fn.196)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%U) {
// CHECK:STDOUT: %U.patt => constants.%U.patt
// CHECK:STDOUT: %U => constants.%U
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.4063b8.1
// CHECK:STDOUT: %X.G => constants.%X.G.ff3d53.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X.G(constants.%U) {
// CHECK:STDOUT: %U => constants.%U
// CHECK:STDOUT: %.1 => constants.%.184
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.51d
// CHECK:STDOUT: %return.param_patt => constants.%return.param_patt.41d
// CHECK:STDOUT: %return.patt => constants.%return.patt.c39
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%require_complete.944
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.4063b8.1
// CHECK:STDOUT: %X.G => constants.%X.G.ff3d53.1
// CHECK:STDOUT: %X.G.specific_fn => constants.%X.G.specific_fn.196
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%T) {
// CHECK:STDOUT: %U.patt => constants.%U.patt
// CHECK:STDOUT: %U => constants.%T
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.4063b8.2
// CHECK:STDOUT: %X.G => constants.%X.G.ff3d53.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT: %T.patt => constants.%T.patt
// CHECK:STDOUT: %T => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%i32) {
// CHECK:STDOUT: %T.patt => constants.%T.patt
// CHECK:STDOUT: %T => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X => constants.%X.c03
// CHECK:STDOUT: %require_complete => constants.%complete_type.357
// CHECK:STDOUT: %C => constants.%C.3b7
// CHECK:STDOUT: %C.elem => constants.%C.elem.433
// CHECK:STDOUT: %struct_type.base => constants.%struct_type.base.013
// CHECK:STDOUT: %complete_type => constants.%complete_type.3c0
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X(constants.%i32) {
// CHECK:STDOUT: %U.patt => constants.%U.patt
// CHECK:STDOUT: %U => constants.%i32
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.aea
// CHECK:STDOUT: %X.G => constants.%X.G.df3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @X.G(constants.%i32) {
// CHECK:STDOUT: %U => constants.%i32
// CHECK:STDOUT: %.1 => constants.%.795
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.6b6
// CHECK:STDOUT: %return.param_patt => constants.%return.param_patt.a9a
// CHECK:STDOUT: %return.patt => constants.%return.patt.0bc
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete => constants.%complete_type.f8a
// CHECK:STDOUT: %X.G.type => constants.%X.G.type.aea
// CHECK:STDOUT: %X.G => constants.%X.G.df3
// CHECK:STDOUT: %X.G.specific_fn => constants.%X.G.specific_fn.2b6
// CHECK:STDOUT: }
// CHECK:STDOUT:
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