// 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> {} | |
typedef A1<Y> = A<Y>; | |
typedef A2<U, Z> = A1<A<Z>>; | |
typedef A3<W> = A2<int, A<W>>; |