diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/generators/bug931414.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/generators/bug931414.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+// |jit-test| error: is undefined
+
+load(libdir + "iteration.js");
+
+function iterable() {
+  var iterable = {};
+  iterable[std_iterator] = () => ({next: () => void 0});
+  return iterable;
+}
+
+(function*(){yield*iterable()}()).next();