Allow to pass the QScreen pointer to the QML Window

Some Qt objects may return a QScreen pointer. Allow this pointer to be
accepted as an argument for `Window.screen` on the QML side.

Author: wxmaper

src/quick/items/qquickwindowmodule.cpp

@@ -548,8 +548,12 @@ QObject *QQuickWindowQmlImpl::screen() const
 
 void QQuickWindowQmlImpl::setScreen(QObject *screen)
 {
-    QQuickScreenInfo *screenWrapper = qobject_cast<QQuickScreenInfo *>(screen);
-    QWindow::setScreen(screenWrapper ? screenWrapper->wrappedScreen() : nullptr);
+    QScreen *newScreen = nullptr;
+    if (QQuickScreenInfo *screenWrapper = qobject_cast<QQuickScreenInfo *>(screen))
+        newScreen = screenWrapper->wrappedScreen();
+    else if (QScreen *qScreen = qobject_cast<QScreen *>(screen))
+        newScreen = qScreen;
+    QWindow::setScreen(newScreen);
 }
 
 QQuickWindowAttached *QQuickWindowQmlImpl::qmlAttachedProperties(QObject *object)