Checkpoint arguments tour-de-force (453730).

js/src/jsbuiltins.cpp

@@ -718,6 +718,12 @@ js_Array_3num(JSContext* cx, JSObject* proto, jsdouble n1, jsdouble n2, jsdouble
             return NULL;)
 }
 
+JSObject* FASTCALL
+js_Arguments(JSContext* cx)
+{
+    return NULL;
+}
+
 /* soft float */
 
 jsdouble FASTCALL