| // Copyright (c) 2023, 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 'main_lib.dart'; | |
| final class ExtendsFinalClass extends A {} /* Error */ | |
| final class ImplementsFinalClass implements A {} /* Error */ | |
| enum EnumImplementsFinalMixin implements A { x } /* Error */ | |
| base mixin MixinOnA on A {} /* Error */ | |
| base mixin MixinOnAB on A, B {} /* Error */ |