diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/intl402/ch11/11.4/11.4_a.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/intl402/ch11/11.4/11.4_a.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * @description Tests that Intl.NumberFormat instances have the specified properties.
+ * @author Norbert Lindenberg
+ */
+
+var obj = new Intl.NumberFormat();
+
+var toStringValue = Object.prototype.toString.call(obj);
+if (toStringValue !== "[object Object]") {
+    $ERROR("Intl.NumberFormat instance produces wrong [[Class]] - toString returns " + toStringValue + ".");
+}
+