// 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 Let Ti be the static type of ai, let Si be the type of pi,
 * i ∈ 1..h+k and let Sq be the type of the named parameter q of f.
 * . . .
 * It is a static warning if Tm+j may not be assigned to Sqj, j ∈ 1..l.
 * @description Checks that it is a compile error if the type of an actual
 * argument may not be assigned to the type of an optional parameter of an
 * instance method.
 * @compile-error
 * @author msyabro
 */

class C {
  func([int? x]) {}

  test() {
    func ('');
  }
}

main() {
  new C().test();
}