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carbon-lang/toolchain/check/testdata/interop/cpp/class/import/union.carbon
T
Richard Smith cefa0397bb More fixes to package and library fingerprinting. (#7297)
Fix import logic to make all imported packages be children of the
`NameScopeId::Package` scope. Previously, indirectly-imported packages
would end up as children of their importing package's scope, which
resulted in them not being treated as packages at all, and in particular
not being fingerprinted as packages.

Fixing that caused a failure in the fingerprinting logic as we started
to encounter packages with no correspoding import scopes. Instead of
looking for import scopes, use a simpler mechanism to map packages to
their package names, and clean up.

Unfortunately the latter change churns all the fingerprints again :(
Hopefully this is the last time for a while.
2026-06-04 17:41:46 +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/convert.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/class/import/union.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/class/import/union.carbon
// ============================================================================
// Declaration
// ============================================================================
// --- declaration.h
union Bar;
// --- import_declaration.carbon
library "[[@TEST_NAME]]";
import Cpp library "declaration.h";
//@dump-sem-ir-begin
fn MyF(bar: Cpp.Bar*);
//@dump-sem-ir-end
// --- fail_use_declaration_as_definition.carbon
library "[[@TEST_NAME]]";
import Cpp library "declaration.h";
fn MyF() {
// CHECK:STDERR: fail_use_declaration_as_definition.carbon:[[@LINE+8]]:19: error: binding pattern has incomplete type `Bar` in name binding declaration [IncompleteTypeInBindingDecl]
// CHECK:STDERR: var unused bar: Cpp.Bar;
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_use_declaration_as_definition.carbon:[[@LINE-6]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./declaration.h:2:7: note: class was forward declared here [ClassForwardDeclaredHere]
// CHECK:STDERR: union Bar;
// CHECK:STDERR: ^
// CHECK:STDERR:
var unused bar: Cpp.Bar;
}
// ============================================================================
// Definition
// ============================================================================
// --- definition.h
union Bar {};
// --- import_definition.carbon
library "[[@TEST_NAME]]";
import Cpp library "definition.h";
//@dump-sem-ir-begin
fn MyF(bar: Cpp.Bar*);
//@dump-sem-ir-end
// ============================================================================
// Declaration and definition
// ============================================================================
// --- declaration_and_definition.h
union Bar;
union Bar {};
// --- import_declaration_and_definition.carbon
library "[[@TEST_NAME]]";
import Cpp library "declaration_and_definition.h";
//@dump-sem-ir-begin
fn MyF(bar: Cpp.Bar*);
//@dump-sem-ir-end
// ============================================================================
// Static member function
// ============================================================================
// --- static_member_function.h
union Bar {
public:
static auto foo() -> void;
};
// --- import_static_member_function.carbon
library "[[@TEST_NAME]]";
import Cpp library "static_member_function.h";
fn MyF() {
//@dump-sem-ir-begin
Cpp.Bar.foo();
//@dump-sem-ir-end
}
// ============================================================================
// Static data member
// ============================================================================
// --- static_data_member.h
union Bar {
public:
static Bar* _Nonnull foo;
};
// --- import_static_data_member.carbon
library "[[@TEST_NAME]]";
import Cpp library "static_data_member.h";
fn MyF() {
//@dump-sem-ir-begin
let unused bar: Cpp.Bar* = Cpp.Bar.foo;
//@dump-sem-ir-end
}
// ============================================================================
// Data member
// ============================================================================
// --- data_member.h
union Bar {
public:
Bar* _Nonnull foo;
};
// --- import_data_member.carbon
library "[[@TEST_NAME]]";
import Cpp library "data_member.h";
//@dump-sem-ir-begin
fn MyF(bar : Cpp.Bar*) {
let unused foo_bar: Cpp.Bar* = bar->foo;
}
//@dump-sem-ir-end
// ============================================================================
// Template
// ============================================================================
// --- template.h
struct X {};
template<typename T>
union Bar {};
// --- import_template.carbon
library "[[@TEST_NAME]]";
import Cpp library "template.h";
//@dump-sem-ir-begin
fn MyF(bar: Cpp.Bar(Cpp.X)*);
//@dump-sem-ir-end
// CHECK:STDOUT: --- import_declaration.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ptr [concrete]
// CHECK:STDOUT: %MyF.type: type = fn_type @MyF [concrete]
// CHECK:STDOUT: %MyF: %MyF.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %MyF.decl: %MyF.type = fn_decl @MyF [concrete = constants.%MyF] {
// CHECK:STDOUT: %bar.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %bar.patt: %pattern_type = at_binding_pattern bar, %bar.param_patt [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %bar.param: %ptr = value_param call_param0
// CHECK:STDOUT: %.loc7: type = splice_block %ptr [concrete = constants.%ptr] {
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar.ref [concrete = constants.%ptr]
// CHECK:STDOUT: }
// CHECK:STDOUT: %bar: %ptr = value_binding bar, %bar.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF(%bar.param: %ptr);
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_definition.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ptr [concrete]
// CHECK:STDOUT: %MyF.type: type = fn_type @MyF [concrete]
// CHECK:STDOUT: %MyF: %MyF.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %MyF.decl: %MyF.type = fn_decl @MyF [concrete = constants.%MyF] {
// CHECK:STDOUT: %bar.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %bar.patt: %pattern_type = at_binding_pattern bar, %bar.param_patt [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %bar.param: %ptr = value_param call_param0
// CHECK:STDOUT: %.loc7: type = splice_block %ptr [concrete = constants.%ptr] {
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar.ref [concrete = constants.%ptr]
// CHECK:STDOUT: }
// CHECK:STDOUT: %bar: %ptr = value_binding bar, %bar.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF(%bar.param: %ptr);
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_declaration_and_definition.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ptr [concrete]
// CHECK:STDOUT: %MyF.type: type = fn_type @MyF [concrete]
// CHECK:STDOUT: %MyF: %MyF.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %MyF.decl: %MyF.type = fn_decl @MyF [concrete = constants.%MyF] {
// CHECK:STDOUT: %bar.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %bar.patt: %pattern_type = at_binding_pattern bar, %bar.param_patt [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %bar.param: %ptr = value_param call_param0
// CHECK:STDOUT: %.loc7: type = splice_block %ptr [concrete = constants.%ptr] {
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar.ref [concrete = constants.%ptr]
// CHECK:STDOUT: }
// CHECK:STDOUT: %bar: %ptr = value_binding bar, %bar.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF(%bar.param: %ptr);
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_static_member_function.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %Bar.foo.cpp_overload_set.type: type = cpp_overload_set_type @Bar.foo.cpp_overload_set [concrete]
// CHECK:STDOUT: %Bar.foo.cpp_overload_set.value: %Bar.foo.cpp_overload_set.type = cpp_overload_set_value @Bar.foo.cpp_overload_set [concrete]
// CHECK:STDOUT: %Bar.foo.type: type = fn_type @Bar.foo [concrete]
// CHECK:STDOUT: %Bar.foo: %Bar.foo.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: %Bar.foo.cpp_overload_set.value: %Bar.foo.cpp_overload_set.type = cpp_overload_set_value @Bar.foo.cpp_overload_set [concrete = constants.%Bar.foo.cpp_overload_set.value]
// CHECK:STDOUT: %Bar.foo.decl: %Bar.foo.type = fn_decl @Bar.foo [concrete = constants.%Bar.foo] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %foo.ref: %Bar.foo.cpp_overload_set.type = name_ref foo, imports.%Bar.foo.cpp_overload_set.value [concrete = constants.%Bar.foo.cpp_overload_set.value]
// CHECK:STDOUT: %Bar.foo.call: init %empty_tuple.type = call imports.%Bar.foo.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_static_data_member.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %ptr.227: type = ptr_type %Bar [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ptr.227 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: %foo.patt: %pattern_type = ref_binding_pattern foo [concrete]
// CHECK:STDOUT: %foo.var_patt: %pattern_type = var_pattern %foo.patt [concrete]
// CHECK:STDOUT: %foo.var: ref %ptr.227 = var %foo.var_patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %bar.patt: %pattern_type = value_binding_pattern bar [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref.loc8_30: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref.loc8_33: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %foo.ref: ref %ptr.227 = name_ref foo, imports.%foo.var [concrete = imports.%foo.var]
// CHECK:STDOUT: %.loc8_26: type = splice_block %ptr [concrete = constants.%ptr.227] {
// CHECK:STDOUT: %Cpp.ref.loc8_19: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref.loc8_22: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar.ref.loc8_22 [concrete = constants.%ptr.227]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc8_37: %ptr.227 = acquire_value %foo.ref
// CHECK:STDOUT: %bar: %ptr.227 = value_binding bar, %.loc8_37
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_data_member.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %ptr.227: type = ptr_type %Bar [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ptr.227 [concrete]
// CHECK:STDOUT: %MyF.type: type = fn_type @MyF [concrete]
// CHECK:STDOUT: %MyF: %MyF.type = struct_value () [concrete]
// CHECK:STDOUT: %Bar.elem: type = unbound_element_type %Bar, %ptr.227 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %MyF.decl: %MyF.type = fn_decl @MyF [concrete = constants.%MyF] {
// CHECK:STDOUT: %bar.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %bar.patt: %pattern_type = at_binding_pattern bar, %bar.param_patt [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %bar.param: %ptr.227 = value_param call_param0
// CHECK:STDOUT: %.loc7: type = splice_block %ptr.loc7 [concrete = constants.%ptr.227] {
// CHECK:STDOUT: %Cpp.ref.loc7: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref.loc7: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %ptr.loc7: type = ptr_type %Bar.ref.loc7 [concrete = constants.%ptr.227]
// CHECK:STDOUT: }
// CHECK:STDOUT: %bar: %ptr.227 = value_binding bar, %bar.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF(%bar.param: %ptr.227) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %foo_bar.patt: %pattern_type = value_binding_pattern foo_bar [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %bar.ref: %ptr.227 = name_ref bar, %bar
// CHECK:STDOUT: %.loc8_37.1: ref %Bar = deref %bar.ref
// CHECK:STDOUT: %foo.ref: %Bar.elem = name_ref foo, @Bar.%.1 [concrete = @Bar.%.1]
// CHECK:STDOUT: %.loc8_37.2: ref %ptr.227 = class_element_access %.loc8_37.1, element0
// CHECK:STDOUT: %.loc8_30: type = splice_block %ptr.loc8 [concrete = constants.%ptr.227] {
// CHECK:STDOUT: %Cpp.ref.loc8: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref.loc8: type = name_ref Bar, imports.%Bar.decl [concrete = constants.%Bar]
// CHECK:STDOUT: %ptr.loc8: type = ptr_type %Bar.ref.loc8 [concrete = constants.%ptr.227]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc8_37.3: %ptr.227 = acquire_value %.loc8_37.2
// CHECK:STDOUT: %foo_bar: %ptr.227 = value_binding foo_bar, %.loc8_37.3
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- import_template.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar.type: type = cpp_type_template_type Bar [concrete]
// CHECK:STDOUT: %Bar.template: %Bar.type = struct_value () [concrete]
// CHECK:STDOUT: %X: type = class_type @X [concrete]
// CHECK:STDOUT: %Bar: type = class_type @Bar [concrete]
// CHECK:STDOUT: %ptr: type = ptr_type %Bar [concrete]
// CHECK:STDOUT: %pattern_type: type = pattern_type %ptr [concrete]
// CHECK:STDOUT: %MyF.type: type = fn_type @MyF [concrete]
// CHECK:STDOUT: %MyF: %MyF.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .Bar = %Bar.template
// CHECK:STDOUT: .X = %X.decl
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.template: %Bar.type = struct_value () [concrete = constants.%Bar.template]
// CHECK:STDOUT: %X.decl: type = class_decl @X [concrete = constants.%X] {} {}
// CHECK:STDOUT: %Bar.decl: type = class_decl @Bar [concrete = constants.%Bar] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: %MyF.decl: %MyF.type = fn_decl @MyF [concrete = constants.%MyF] {
// CHECK:STDOUT: %bar.param_patt: %pattern_type = value_param_pattern [concrete]
// CHECK:STDOUT: %bar.patt: %pattern_type = at_binding_pattern bar, %bar.param_patt [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %bar.param: %ptr = value_param call_param0
// CHECK:STDOUT: %.loc7: type = splice_block %ptr [concrete = constants.%ptr] {
// CHECK:STDOUT: %Cpp.ref.loc7_13: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %Bar.ref: %Bar.type = name_ref Bar, imports.%Bar.template [concrete = constants.%Bar.template]
// CHECK:STDOUT: %Cpp.ref.loc7_21: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %X.ref: type = name_ref X, imports.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %ptr: type = ptr_type imports.%Bar.decl [concrete = constants.%ptr]
// CHECK:STDOUT: }
// CHECK:STDOUT: %bar: %ptr = value_binding bar, %bar.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF(%bar.param: %ptr);
// CHECK:STDOUT: