switched to wxEventLoopBase/wxEventLoop implementation (instead of m_impl based one) for wxMSW; minimal changes for the other ports

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28549 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/evtloop.cpp

@@ -62,18 +62,13 @@ private:
 // wxEventLoop running and exiting
 // ----------------------------------------------------------------------------
 
-wxEventLoop *wxEventLoop::ms_activeLoop = NULL;
+wxEventLoop *wxEventLoopBase::ms_activeLoop = NULL;
 
 wxEventLoop::~wxEventLoop()
 {
     wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );
 }
 
-bool wxEventLoop::IsRunning() const
-{
-    return m_impl != NULL;
-}
-
 int wxEventLoop::Run()
 {
     // event loops are not recursive, you need to create another loop!