diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/intl402/ch10/10.1/10.1.1_a.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/intl402/ch10/10.1/10.1.1_a.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+// Copyright 2013 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * @description Tests that constructing a Collator doesn't create or modify
+ *     unwanted properties on the RegExp constructor.
+ * @author Norbert Lindenberg
+ */
+
+$INCLUDE("testIntl.js");
+
+testForUnwantedRegExpChanges(function () {
+    new Intl.Collator("de-DE-u-co-phonebk");
+});