diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/intl402/ch11/11.1/11.1.1_1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/intl402/ch11/11.1/11.1.1_1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,43 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * @description Tests that an object can't be re-initialized as a NumberFormat.
+ * @author Norbert Lindenberg
+ */
+
+$INCLUDE("testIntl.js");
+
+testWithIntlConstructors(function (Constructor) {
+    var obj, error;
+    
+    // variant 1: use constructor in a "new" expression
+    obj = new Constructor();
+    try {
+        Intl.NumberFormat.call(obj);
+    } catch (e) {
+        error = e;
+    }
+    if (error === undefined) {
+        $ERROR("Re-initializing object created with \"new\" as NumberFormat was not rejected.");
+    } else if (error.name !== "TypeError") {
+        $ERROR("Re-initializing object created with \"new\" as NumberFormat was rejected with wrong error " + error.name + ".");
+    }
+    
+    // variant 2: use constructor as a function
+    obj = Constructor.call({});
+    error = undefined;
+    try {
+        Intl.NumberFormat.call(obj);
+    } catch (e) {
+        error = e;
+    }
+    if (error === undefined) {
+        $ERROR("Re-initializing object created with constructor as function as NumberFormat was not rejected.");
+    } else if (error.name !== "TypeError") {
+        $ERROR("Re-initializing object created with constructor as function as NumberFormat was rejected with wrong error " + error.name + ".");
+    }
+    
+    return true;
+});
+