diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug487563.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug487563.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+// Binary: cache/js-dbg-64-86c8e18f20eb-linux
+// Flags:
+//
+try {
+  !(Iterator((
+    eval("\
+      (function(){\
+        (function a() { \
+          new function(){\
+            __iterator__ = a\
+          }\
+        }\
+      )(); \
+      return this\
+      })")
+  )()))
+} catch(e) {}