Bug 1135368 - Do not run shell/futex.js test if SharedArrayBuffer is not defined. r=luke

js/src/tests/shell/futex.js

@@ -5,7 +5,7 @@
  * http://creativecommons.org/licenses/publicdomain/
  */
 
-if ((this.SharedArrayBuffer && this.AtomicsObject && this.getSharedArrayBuffer && this.setSharedArrayBuffer))
+if (!(this.SharedArrayBuffer && this.getSharedArrayBuffer && this.setSharedArrayBuffer))
     quit(0);
 
 var DEBUG = false;