diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/arrow-functions/this-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/arrow-functions/this-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+// 'this' is lexically scoped in arrow functions
+
+var obj = {
+    f: function (expected) {
+        assertEq(this, expected);
+        return a => this;
+    }
+};
+
+var g = obj.f(obj);
+assertEq(g(), obj);
+
+var obj2 = {f: obj.f};
+var g2 = obj2.f(obj2);
+assertEq(g2(), obj2);
+assertEq(g(), obj);
+