The Tor Browser / file revision

 // Copyright 2009 the Sputnik authors.  All rights reserved.

 // This code is governed by the BSD license found in the LICENSE file.

 /**

  * Operator "void" evaluates UnaryExpression and returns undefined

  *

  * @path ch11/11.4/11.4.2/S11.4.2_A4_T5.js

  * @description Type(x) is Object object or Function object

  */

 //CHECK#1

 var x = {}; 

 if (isNaN(void x) !== true) {

   $ERROR('#1: var x = {}; void x === undefined. Actual: ' + (void x));

 }

 //CHECK#2

 var x = function(){return 1}; 

 if (isNaN(void x) !== true) {

   $ERROR('#2: var x = function(){return 1}; void x === undefined. Actual: ' + (void x));

 }