The Tor Browser: js/src/tests/ecma_5/Array/redefine-length-frozen-dictionarymode-array.js@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2  * Any copyright is dedicated to the Public Domain.

     3  * http://creativecommons.org/licenses/publicdomain/

     4  * Contributor:

     5  *   Jeff Walden <jwalden+code@mit.edu>

     6  */

     8 //-----------------------------------------------------------------------------

     9 var BUGNUMBER = 880591;

    10 var summary =

    11   "Assertion redefining length property of a frozen dictionary-mode array";

    13 print(BUGNUMBER + ": " + summary);

    15 /**************

    16  * BEGIN TEST *

    17  **************/

    19 function convertToDictionaryMode(arr)

    20 {

    21   Object.defineProperty(arr, 0, { configurable: true });

    22   Object.defineProperty(arr, 1, { configurable: true });

    23   delete arr[0];

    24 }

    26 var arr = [];

    27 convertToDictionaryMode(arr);

    28 Object.freeze(arr);

    29 Object.defineProperty(arr, "length", {});

    31 /******************************************************************************/

    33 if (typeof reportCompare === "function")

    34   reportCompare(true, true);

    36 print("Tests complete");

The Tor Browser / file revision