Remove some lambdas from Utils::transform calls

It is often possible to user (member) functions or members directly.
That improves readablility and potentially reduces the total number of
symbols.
Also use qobject_container_cast at places where it is appropriate.

Change-Id: Ia2591bca356591e001e2c53eeebcf753e5bc3c37
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/android/androiddevicedialog.cpp

@@ -532,9 +532,7 @@ void AndroidDeviceDialog::devicesRefreshed()
 
     AndroidDeviceInfoList devices = m_futureWatcherRefreshDevices.result();
     QSet<QString> startedAvds = Utils::transform<QSet>(m_connectedDevices,
-                                                       [] (const AndroidDeviceInfo &info) {
-                                                           return info.avdname;
-                                                       });
+                                                       &AndroidDeviceInfo::avdname);
 
     for (const AndroidDeviceInfo &dev : devices)
         if (!startedAvds.contains(dev.avdname))