diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug706316.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug706316.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+// |jit-test| error: ReferenceError
+gczeal(4);
+function setprop() {
+  var obj = { a:({   } )  };
+  var obj2 = { b:-1, a:-1 };
+  for (var i = 0; i < 20; (length(resultsY.global0, 42))) {
+    obj2.b = obj.a = i;
+  }
+}
+assertEq(setprop(), "19,-1,19");
+