pkg/front_end/testcases/extensions/issue39938/issue39938_lib.dart

// Copyright (c) 2020, 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.

extension Extension on bool {
  bool operator +(bool other) => this | other;
}