// Copyright (c) 2018, 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. | |
// test w/ `pub run test -N prefer_mixin` | |
class A {} | |
class B extends Object with A {} // LINT | |
mixin M {} | |
class C with M {} // OK |