[Build] Fix failing test

Acquire reference to moment as an argument instead of
assuming global availability; this appears to be no longer
be present globally after build changes

platform/forms/test/controllers/DateTimeControllerSpec.js

@@ -26,7 +26,7 @@ define(
     function (DateTimeController) {
         "use strict";
 
-        describe("The date-time directive", function () {
+        describe("The date-time controller", function () {
             var mockScope,
                 controller;