text: // Copyright 2009 the Sputnik authors.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /**
   * Operator x << y returns ToNumber(x) << ToNumber(y)
   *
   * @path ch11/11.7/11.7.1/S11.7.1_A3_T2.4.js
   * @description Type(x) is different from Type(y) and both types vary between Number (primitive or object) and Undefined
   */
  
  //CHECK#1
  if (1 << undefined !== 1) {
    $ERROR('#1: 1 << undefined === 1. Actual: ' + (1 << undefined));
  }
  
  //CHECK#2
  if (undefined << 1 !== 0) {
    $ERROR('#2: undefined << 1 === 0. Actual: ' + (undefined << 1));
  }
  
  //CHECK#3
  if (new Number(1) << undefined !== 1) {
    $ERROR('#3: new Number(1) << undefined === 1. Actual: ' + (new Number(1) << undefined));
  }
  
  //CHECK#4
  if (undefined << new Number(1) !== 0) {
    $ERROR('#4: undefined << new Number(1) === 0. Actual: ' + (undefined << new Number(1)));
  }
  
  