// 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-time error if a formal parameter is declared as
 * a constant variable.
 * @description Checks that it is a compile-time error if an optional named
 * parameter is declared as a constant typed variable.
 * @compile-error
 * @author msyabro
 */

void f({const int x}) {}

main () {
  f(1);
}
