Issue 5603 - Support references in parameters of exported functions

compiled/FilterNotifier.h

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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 53 matching lines @@
     printf("  [%i, 'subscription.disabled'],\n", Topic::SUBSCRIPTION_DISABLED);
     printf("  [%i, 'subscription.fixedTitle'],\n", Topic::SUBSCRIPTION_FIXEDTITLE);
     printf("  [%i, 'subscription.homepage'],\n", Topic::SUBSCRIPTION_HOMEPAGE);
     printf("  [%i, 'subscription.lastCheck'],\n", Topic::SUBSCRIPTION_LASTCHECK);
     printf("  [%i, 'subscription.lastDownload'],\n", Topic::SUBSCRIPTION_LASTDOWNLOAD);
     printf("  [%i, 'subscription.downloadStatus'],\n", Topic::SUBSCRIPTION_DOWNLOADSTATUS);
     printf("  [%i, 'subscription.errors'],\n", Topic::SUBSCRIPTION_ERRORS);
     printf("]);");
   }
 
-  inline void FilterChange(Topic topic, Filter* filter,
+  inline void FilterChange(Topic topic, Filter& filter,
       Subscription* subscription = nullptr, unsigned int position = 0)
   {
     JSNotifyFilterChange(topic, filter, subscription, position);
   }
 
-  inline void SubscriptionChange(Topic topic, Subscription* subscription)
+  inline void SubscriptionChange(Topic topic, Subscription& subscription)
   {
     JSNotifySubscriptionChange(topic, subscription);
   }
 }