diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug727223.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug727223.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+try {
+    mjitChunkLimit(1)
+    function x() {}
+} catch (e) {}
+(function() {
+    for (let c in [0, 0, 0]) {
+        let c
+        for (y in decodeURI()) {
+            (function() {
+                c
+            }())
+        }
+    }
+}())
+