diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug705895-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug705895-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+c = (0).__proto__
+function f(o) {
+    o.__proto__ = null
+    for (x in o) {}
+}
+for (i = 0; i < 9; i++) {
+    f(c)
+    Function.prototype.__proto__.__proto__ = c
+    for (x in Function.prototype.__proto__) {}
+    f(Math.__proto__)
+}