Some Qt6 porting

- new ambiguous overloads for mapToGlobal
- some functions now return qsizetype instead of int

Task-number: QTCREATORBUG-24098
Change-Id: I0020e5689e093653e9e0e6f0d6263720bc2e003b
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/remotelinux/linuxdevice.cpp

@@ -93,7 +93,7 @@ private:
             const QStringList elements = line.split(QLatin1Char('\n'));
             if (elements.count() < 4) {
                 qDebug("%s: Expected four list elements, got %d. Line was '%s'.", Q_FUNC_INFO,
-                       elements.count(), qPrintable(visualizeNull(line)));
+                       int(elements.count()), qPrintable(visualizeNull(line)));
                 continue;
             }
             bool ok;