diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testNestedClosures.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testNestedClosures.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+function testNestedClosures() {
+    function f(a, b) {
+        function g(x, y) {
+            function h(m, n) {
+                function k(u, v) {
+                    var s = '';
+                    for (var i = 0; i < 5; ++i)
+                        s = a + ',' + b + ',' + x + ',' + y + ',' + m + ',' + n + ',' + u + ',' + v;
+                    return s;
+                }
+                return k(m+1, n+1);
+            }
+            return h(x+1, y+1);
+        }
+        return g(a+1, b+1);
+    }
+
+    var s1;
+    for (var i = 0; i < 5; ++i)
+        s1 = f(i, i+i);
+    return s1;
+}
+assertEq(testNestedClosures(), '4,8,5,9,6,10,7,11');