| // Copyright (c) 2021, 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 A<X1 extends G<num>> {} | |
| typedef G<X1> = void Function<Y1 extends X1>(); | |
| class B<X2 extends H<num>> {} | |
| typedef H<X2> = (void Function<Y2 extends X2>(), int); | |
| class C<X3 extends I<num>> {} | |
| typedef I<X3> = ({void Function<Y3 extends X3>() a, int b}); | |
| main() {} |