fix a few hundreds of harmless unused parameters warnings and a couple of real bugs discovered thanks to them

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49659 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/carbon/private.h

@@ -370,7 +370,7 @@ protected :
 template <typename procType, typename uppType , uppType (*newUPP)(procType) , void (*disposeUPP)(uppType) > class wxMacUPP
 {
 public :
-    wxMacUPP( procType proc )
+    wxMacUPP( procType WXUNUSED(proc) )
     {
         m_upp = NULL;
         m_upp = (*newUPP)( NULL );