| // Copyright (c) 2024, 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 A1 { | |
| final Object? a; | |
| A1({required this.a}); | |
| } | |
| class B1 extends A1 { | |
| B1({super.a}) {} | |
| } | |
| class A2 { | |
| final Object? a; | |
| A2(this.a); | |
| } | |
| class B2 extends A2 { | |
| B2([super.a]); | |
| } | |
| void main() { | |
| var f1 = B1.new; | |
| var f2 = B2.new; | |
| } |