tests/language/class_cycle_test.dart

// Copyright (c) 2012, 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.
// Check fail because of cycles in super class relationship.

class Foo implements Bar {
}

class C {
}

class Bar
    extends Foo  /// 00: compile-time error
    implements Foo  /// 01: compile-time error
    implements C, C  /// 02: compile-time error
    extends C implements C  /// 03: compile-time error
{
}

main() {
  Expect.isTrue(new Foo() is Foo);
}