Use Qt provided forward declaration header

src/base/utils/bytearray.cpp

@@ -29,6 +29,7 @@
 #include "bytearray.h"
 
 #include <QByteArray>
+#include <QVector>
 
 QVector<QByteArray> Utils::ByteArray::splitToViews(const QByteArray &in, const QByteArray &sep, const QString::SplitBehavior behavior)
 {

src/base/utils/bytearray.h

@@ -29,7 +29,7 @@
 #pragma once
 
 #include <QString>
-#include <QVector>
+#include <QtContainerFwd>
 
 class QByteArray;
 

src/base/utils/misc.cpp

@@ -52,6 +52,7 @@
 #include <QRegularExpression>
 #include <QSet>
 #include <QSysInfo>
+#include <QVector>
 
 #if (defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)) && defined(QT_DBUS_LIB)
 #include <QDBusInterface>

src/base/utils/net.cpp

@@ -28,10 +28,13 @@
 
 #include "net.h"
 
+#include <QList>
 #include <QNetworkInterface>
+#include <QPair>
 #include <QSslCertificate>
 #include <QSslKey>
 #include <QString>
+#include <QVector>
 
 namespace Utils
 {

src/base/utils/net.h

@@ -30,9 +30,7 @@
 #define BASE_UTILS_NET_H
 
 #include <QHostAddress>
-#include <QList>
-#include <QPair>
-#include <QVector>
+#include <QtContainerFwd>
 
 class QSslCertificate;
 class QSslKey;

src/base/utils/password.cpp

@@ -34,6 +34,7 @@
 
 #include <QByteArray>
 #include <QString>
+#include <QVector>
 
 #include "bytearray.h"
 #include "random.h"

src/base/utils/string.cpp

@@ -35,6 +35,7 @@
 #include <QLocale>
 #include <QRegExp>
 #include <QtGlobal>
+#include <QVector>
 
 #if defined(Q_OS_MACOS) || defined(__MINGW32__)
 #define QBT_USES_QTHREADSTORAGE

src/base/utils/string.h

@@ -31,9 +31,10 @@
 #define UTILS_STRING_H
 
 #include <QChar>
-#include <QVector>
+#include <QString>
+#include <Qt>
+#include <QtContainerFwd>
 
-class QString;
 class QStringRef;
 
 class TriStateBool;