| // Copyright (c) 2021, 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. | |
| // @dart = 2.9 | |
| class S {} | |
| class M {} | |
| typedef SAlias = S; | |
| typedef MAlias = M; | |
| class C = SAlias with MAlias; | |
| main() {} |