pkg/front_end/testcases/closure_context_lowering/parameters.dart

// Copyright (c) 2026, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

foo1(int a) {
  return () => a;
}

foo2(int b) {
  return ((int a) => (() => a))(b);
}

foo3({required int a}) {
  return () => a;
}

foo4(int b) {
  return (({required int a}) => (() => a))(a: b);
}