// Copyright (c) 2011, 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.

interface S { }
interface I { }
interface I extends S;

class C implements I { }

main() {
  Expect.equals(true, new C() is S);
}
