Remove some unneeded QApplication includes

src/private/Utils_p.h

@@ -18,10 +18,7 @@
 #include <QScreen>
 #include <QWindow>
 #include <QMouseEvent>
-
-#include <QApplication>
-#include <QAbstractButton>
-#include <QLineEdit>
+#include <QGuiApplication>
 
 #ifdef QT_X11EXTRAS_LIB
 #include <QtX11Extras/QX11Info>

src/qtquick/TestHelpers_qtquick.cpp

@@ -15,7 +15,7 @@
 #include "qtquick/views/MainWindow_qtquick.h"
 #include "controllers/MainWindow.h"
 
-#include <QApplication> // TODO: Make it QGuiApplication
+#include <QGuiApplication>
 #include <QQmlEngine>
 #include <QQuickStyle>
 #include <QQuickItem>

src/qtwidgets/Platform_qtwidgets.cpp

@@ -20,6 +20,9 @@
 #include "ViewFactory_qtwidgets.h"
 
 #include <QScreen>
+#include <QApplication>
+#include <QLineEdit>
+#include <QAbstractButton>
 
 #include <memory.h>
 

src/qtwidgets/TestHelpers_qtwidgets.cpp

@@ -18,6 +18,7 @@
 
 #include <QStyleFactory>
 #include <QApplication>
+#include <QLineEdit>
 #include <QWidget>
 
 using namespace KDDockWidgets;