/*
 * 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 instance method m1 overrides an
 * instance member m2 and the type of m1 is not a subtype of the type of m2.
 * @description Checks that a compile error is produced if m1 is not a subtype
 * of m2 because their respective optional positional parameter types are not 
 * mutually assignable.
 * @compile-error
 * @author iefremov
 */

class A {
  foo([double name]) {}
}

class C extends A {
  foo([int name]) {
  }
}

main() {
  new A().foo(1.0);
  new C().foo(0);
}