| /* |
| * 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. |
| */ |
| /** |
| * @description Regression test for the issue 33703 (Dart does not throw error |
| * if class argument parameter extends Null). |
| * |
| * Finally, analyzer behavior was updated, so the test checks that class type |
| * parameter can extend [Null]. |
| * |
| * @Issue 33703, 33709 |
| * @author iarkh@unipro.ru |
| */ |
| |
| class A1<X extends Null> {} |
| class A2<X extends Never> {} |
| |
| main() {} |
