// 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 Shift expressions invoke the shift operators on objects.
 * shiftExpression:
 *   additiveExpression (shiftOperator additiveExpression)* |
 *   super (shiftOperator additiveExpression)+
 * ;
 * shiftOperator:
 *   '<<' |
 *   '>>' |
 *   '>>>'
 * ;
 * A shift expression is either an additive expression, or an invocation
 * of a shift operator on either super or an expression e1, with argument e2.
 * @description Checks that two shift operators << can't be placed
 * one after another in a shift expression.
 * @compile-error
 * @author msyabro
 */

main() {
  1 << << 2;
}