diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug660538.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug660538.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+Error.prototype.__proto__.p = 5;
+f = Function("return( \"\" <arguments for(w in[]))");
+for (i in f()) {}
+
+(function() {
+    for (a in (
+        arguments for (l in [0])
+    ))
+    {}
+})()