diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug490191.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug490191.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+// Binary: cache/js-dbg-64-daefd30072a6-linux
+// Flags:
+//
+function f(param) {
+  var w;
+  return eval("\
+    (function(){\
+      __defineGetter__(\"y\", function()({\
+        x: function(){ return w }()\
+      }))\
+    });\
+  ");
+}
+(f())();
+(new Function("eval(\"y\")"))();