diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug627692-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug627692-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+var loop1 = '', loop2 = '', actual = '';
+
+var obj = {};
+for (var i = 0; i < 10; i++) {
+    obj['a' + i] = i;
+    loop1 += i;
+    loop2 += 'a' + i;
+}
+
+Object.defineProperty(obj, 'z', {enumerable: true, get: function () {
+            for (var y in obj)
+                actual += y;
+        }});
+(function() {
+    for each (var e in obj)
+        actual += e;
+ })();
+
+assertEq(actual, loop1 + loop2 + "z" + "undefined");