pkg/front_end/testcases/general/metadata_named_mixin_application.dart

// Copyright (c) 2017, 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
const a = null;

@a
class C = D with E;

class D {}

class E {}

main() {}