diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_5/extensions/toLocaleString-infinite-recursion.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_5/extensions/toLocaleString-infinite-recursion.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 653789;
+var summary = 'Check for too-deep stack when calling toLocaleString';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+try
+{
+  "" + { toString: Object.prototype.toLocaleString };
+  throw new Error("should have thrown on over-recursion");
+}
+catch (e)
+{
+  assertEq(e instanceof InternalError, true);
+}
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("All tests passed!");