diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/arrow-functions/this-4.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/arrow-functions/this-4.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,5 @@
+// 'this' in a toplevel arrow is the global object.
+
+var f = () => this;
+assertEq(f(), this);
+assertEq({f: f}.f(), this);