diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug479747.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug479747.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+// |jit-test| error:TypeError
+
+// Binary: cache/js-dbg-32-9174e1bbfa9f-linux
+// Flags: -j
+//
+'a'.replace(/a/g, [].push);
+x = [];
+x++;
+(function(){ eval("for(let y in []) [][x]"); })();