// 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 Additive expressions invoke the addition operators on objects.
 * additiveExpression:
 *   multiplicativeExpression (additiveOperator multiplicativeExpression)* |
 *   super (additiveOperator multiplicativeExpression)+
 * ;
 * additiveOperator:
 *   '+' |
 *   '-'
 * ;
 * An additive expression is either a multiplicative expression, or an
 * invocation of an additive operator on either super or an expression e1, with
 * argument e2.
 * @description Checks that an additive expression of the form
 * multiplicativeExpression ('+' multiplicativeExpression)*
 * must have at least two operands.
 * Note that there is no unary plus operator in dart.
 * @compile-error
 * @author msyabro
 */

main() {
  var x=1;
  try {
    + x;
  } catch (e) {}
}