diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug610088.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug610088.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+// Binary: cache/js-dbg-64-7ef107ab081e-linux
+// Flags:
+//
+var sandbox = evalcx("");
+function e(code) { try { evalcx(code, sandbox); } catch(e) { } }
+e("let x;");
+e("Object.seal(this);");
+e("x=Proxy.createFunction({keys:Object.getPrototypeOf},function(){})");
+e("const y;");
+