diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/closures/t037.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/closures/t037.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+actual = '';
+expected = '7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,';
+
+function heavy(s, t, u) {return eval(s)}
+
+for (var i = 0; i < 5; ++i) {
+  var flat = heavy("(function () {var x = t * t; return function(){return x + u}})()", 2, 3);
+  for (var j = 0; j < 5; ++j) {
+    appendToActual(flat());
+  }
+ }
+
+
+assertEq(actual, expected)