// 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.

/// @assertion  It is a compile error if an abstract member m is declared or
/// inherited in a concrete class C unless:
///  - m overrides a concrete member, or
///  - C has a noSuchMethod() method distinct from the one declared in class
///    Object.
/// @description Checks that there is no compile error if an abstract
/// method is declared in a concrete class and it overrides a concrete method.
/// @author ngl@unipro.ru


class A {
  foo([x]) {}
}

class B extends A {
  foo([x]);
}

main() {
  new B();
}