| // TODO(multitest): This was automatically migrated from a multitest and may | |
| // contain strange or dead code. | |
| // @dart = 2.9 | |
| // 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. | |
| class Supertype { | |
| factory Supertype() = X; | |
| } | |
| class X implements Supertype { | |
| X(); | |
| } | |
| main() { | |
| X x = new Supertype(); | |
| } |