Compile without the deprecated filterEvent function

Use the filterNativeEvent function, which also takes the name of the
event.

Change-Id: Ifa3dd6285a2a526b5c3de5a86a74ead706534759
Reviewed-by: David Faure <faure@kde.org>

src/corelib/kernel/qeventdispatcher_win.cpp

@@ -736,7 +736,7 @@ bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
                     return false;
                 }
 
-                if (!filterEvent(&msg)) {
+                if (!filterNativeEvent(QByteArrayLiteral("windows_generic_MSG"), &msg, 0)) {
                     TranslateMessage(&msg);
                     DispatchMessage(&msg);
                 }