Use complete types in container declarations

Qt 6 disallows to use incomplete types in container declarations
in some cases, e.g. in parameters of signals/slots.

src/base/bittorrent/session.cpp

@@ -100,7 +100,6 @@
 #include "statistics.h"
 #include "torrentimpl.h"
 #include "tracker.h"
-#include "trackerentry.h"
 
 static const char PEER_ID[] = "qB";
 static const char RESUME_FOLDER[] = "BT_backup";

src/base/bittorrent/session.h

@@ -50,6 +50,7 @@
 #include "cachestatus.h"
 #include "sessionstatus.h"
 #include "torrentinfo.h"
+#include "trackerentry.h"
 
 class QFile;
 class QNetworkConfiguration;
@@ -100,7 +101,6 @@ namespace BitTorrent
     class TorrentImpl;
     class Tracker;
     struct LoadTorrentParams;
-    struct TrackerEntry;
 
     enum class MoveStorageMode;
 

src/base/net/reverseresolution.cpp

@@ -28,7 +28,6 @@
 
 #include "reverseresolution.h"
 
-#include <QHostAddress>
 #include <QHostInfo>
 #include <QString>
 

src/base/net/reverseresolution.h

@@ -29,9 +29,9 @@
 #pragma once
 
 #include <QCache>
+#include <QHostAddress>
 #include <QObject>
 
-class QHostAddress;
 class QHostInfo;
 class QString;