/*
 * 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 while statement supports conditional iteration, where the condition 
 * is evaluated prior to the loop.
 * whileStatement:
 * while '(' expression ')' statement
 * ;. 
 * @description Checks that it is a compile-time error if the expression is missing.
 * @compile-error
 * @author vasya
 * @reviewer rodionov
 * @reviewer iefremov
 */

main() {
  try {
    while () { }
  } catch(x) {}
}