diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug572232.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug572232.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,4 @@
+// |jit-test| error: TypeError
+gczeal(11);
+var o = { valueOf: function() { new Object(); gc(); return 17; } };
+(new String.prototype.substring(o)).toString;