chore(ngAnimate): add TODO messages indicating desire to remove hack

Author: caitp

src/ng/animate.js

@@ -289,6 +289,8 @@ var $AnimateProvider = ['$provide', function($provide) {
         element = jqLite(element);
 
         if (runSynchronously) {
+          // TODO(@caitp/@matsko): Remove undocumented `runSynchronously` parameter, and always
+          // perform DOM manipulation asynchronously or in postDigest.
           self.$$addClassImmediately(element, add);
           self.$$removeClassImmediately(element, remove);
           return asyncPromise();

src/ngAnimate/animate.js

@@ -979,6 +979,9 @@ angular.module('ngAnimate', ['ng'])
           element = stripCommentsFromElement(element);
 
           if (classBasedAnimationsBlocked(element)) {
+            // TODO(@caitp/@matsko): Don't use private/undocumented API here --- we should not be
+            // changing the DOM synchronously in this case. The `true` parameter must eventually be
+            // removed.
             return $delegate.setClass(element, add, remove, true);
           }