| // Copyright (c) 2025, 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. | |
| import 'private_lib.dart'; | |
| mixin M {} | |
| class D = A with M; | |
| class E = B with M; // TODO(johnniwinther): This should not be an error. | |
| class F = C with M; |