| /* | |
| * Copyright (c) 2019, 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. | |
| */ | |
| /** | |
| * @author sgrekhov@unipro.ru | |
| */ | |
| // @dart=2.4 | |
| // SharedOptions=--enable-experiment=non-nullable | |
| library legacy_lib; | |
| class X { | |
| } |