warning fixes for BCC and OW (heavily modified patch 819146)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@24196 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/vlbox.cpp

@@ -486,7 +486,7 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event)
     // flags for DoHandleItemClick()
     int flags = ItemClick_Kbd;
 
-    int current = 0; // just to silent the stupid compiler warnings
+    int current;
     switch ( event.GetKeyCode() )
     {
         case WXK_HOME:
@@ -539,6 +539,7 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event)
 
         default:
             event.Skip();
+            current = 0; // just to silent the stupid compiler warnings
             return;
     }