| // 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<X> {} | |
| A<Function<Y extends Function<Z>(Z)>(Y)> foo() => throw 42; | |
| typedef F<U> = Function<V extends U>(V); | |
| A<F<Function<W>(W)>> bar() => throw 42; | |
| main() {} |