diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testBug667915.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testBug667915.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+for each(let y in [0, 0]) {
+    eval("\
+        for each(e in[0,0,0,0,0,0,0,0]) {\
+            x = undefined\
+        }\
+    ")
+}
+