pkg/front_end/test/language_versioning/data/allowed_experiments_with_packages/foo/test/test_file.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.

/*library: 
 languageVersion=2.7,
 packageUri=package:collection
*/

method3() {}