/*
 * 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 The expression e is evaluated to an object o. Then, o is
 * subjected to boolean conversion, producing an object r.
 * If r is true, then the statement {s} is executed and then the while
 * statement is re-executed recursively.
 * If r is false, execution of the while statement is complete.
 * @description Checks that no dynamic type error is produced in checked mode
 * if o is not null and not of type bool.
 * Checks that while body statement is enclosed in implicit extra block.
 * @author ilya
 */
import "../../Utils/expect.dart";

main() {
  var x, i=0;

  while (i++ < 5) var x=i;

  Expect.isNull(x);
}