diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testINITELEM.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testINITELEM.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,8 @@
+function testINITELEM()
+{
+    var x;
+    for (var i = 0; i < 10; ++i)
+        x = { 0: 5, 1: 5 };
+    return x[0] + x[1];
+}
+assertEq(testINITELEM(), 10);