diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/bug852174.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/bug852174.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,9 @@
+
+function eval()
+  isPrototypeOf[Iterator.length] 
+function DoWhile_3()
+  eval();
+DoWhile_3();
+function f()
+  DoWhile_3(f - 0);
+for (var i in f());