// Copyright (c) 2015, 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 Exactly the same static warnings that would be caused
/// by o.m(a1, . . . , an, xn+1 : an+1, . . . , xn+k : an+k) are also generated
/// in the case of o?.m(a1, . . . , an, xn+1 : an+1, . . . , xn+k : an+k).
/// @description Check that if o.m() produces no static type warning then o?.m()
/// produces no warning as well
/// @author sgrekhov@unipro.ru


class C {
  int m() => 1;
}

main() {
  var c = new C() as C?;
  int? x = c?.m();
}