pkg/front_end/testcases/extensions/issue39938/issue39938_lib.dart - sdk - Git at Google

 // 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;
 }
	// 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;
	}