// Copyright (c) 2019, 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.


// Introduce an aliased type.

class A {
  A();
}

typedef T = A;

// Use the aliased type.

abstract class C {}

abstract class D2 extends C with T {}
//                               ^
// [analyzer] unspecified
// [cfe] unspecified

abstract class D4 = C with T;
//                         ^
// [analyzer] unspecified
// [cfe] unspecified

main() {
  T();
}