Issue 2010 - Remove some uses of "for each" with "for of"

chrome/content/ui/filters-subscriptionview.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 69 matching lines @@
   reload: function()
   {
     // Remove existing entries if any
     while (this._list.firstChild)
       this._list.removeChild(this._list.firstChild);
 
     // Now add all subscriptions
     let subscriptions = FilterStorage.subscriptions.filter(this._filter, this);
     if (subscriptions.length)
     {
-      for each (let subscription in subscriptions)
+      for (let subscription of subscriptions)
         this.addSubscription(subscription, null);
 
       // Make sure first list item is selected after list initialization
       Utils.runAsync(function()
       {
         this._list.selectItem(this._list.getItemAtIndex(this._list.getIndexOfFirstVisibleRow()));
       }, this);
     }
 
     this._deck.selectedIndex = (subscriptions.length ? 1 : 0);
@@ skipping 220 matching lines @@
   {
     FilterStorage.addSubscription(subscription);
     if (subscription instanceof DownloadableSubscription && !subscription.lastDownload)
       Synchronizer.execute(subscription);
   }
   else
     FilterStorage.removeSubscription(subscription);
 };
 
 window.addEventListener("load", ListManager.init, false);