diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug806522.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug806522.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+load(libdir + "asserts.js");
+
+var g = evalcx("lazy");
+assertThrowsInstanceOf(
+    () => evaluate("let (eval) {eval()}", {global: g}),
+    g.TypeError); // eval is not a function
+assertEq(evaluate("let (eval = parseInt) {eval()}", {global: g}), NaN);