Issue 6564 - Replace desc and extend with __proto__

lib/filterNotifier.js

Index: lib/filterNotifier.js
===================================================================
--- a/lib/filterNotifier.js
+++ b/lib/filterNotifier.js
@@ -18,32 +18,33 @@
 "use strict";
 
 /**
  * @fileOverview This component manages listeners and calls them to distributes
  * messages about filter changes.
  */
 
 const {EventEmitter} = require("./events");
-const {desc} = require("./coreUtils");
 
 const CATCH_ALL = "__all";
 
 /**
  * @callback FilterNotifierCatchAllListener
  * @param {string} action
  * @param {Subscription|Filter} item
  * @param {...*} additionalInfo
  */
 
 /**
  * This class allows registering and triggering listeners for filter events.
  * @class
  */
-exports.FilterNotifier = Object.create(new EventEmitter(), desc({
+exports.FilterNotifier = {
+  __proto__: new EventEmitter(),
+
   /**
    * Adds a listener
    *
    * @deprecated use FilterNotifier.on(action, callback)
    * @param {FilterNotifierCatchAllListener} listener
    */
   addListener(listener)
   {
@@ -78,9 +79,9 @@
    * @param {*} param3
    * @deprecated use FilterNotifier.emit(action)
    */
   triggerListeners(action, item, param1, param2, param3)
   {
     this.emit(action, item, param1, param2, param3);
     this.emit(CATCH_ALL, action, item, param1, param2, param3);
   }
-}));
+};