mark all dtors which are virtual because base class dtor is virtual explicitly virtual themselves

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41020 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/classic/region.h

@@ -47,7 +47,7 @@ public:
         Union(bmp, transColour, tolerance);
     }
 
-    ~wxRegion();
+    virtual ~wxRegion();
 
     //# Modify region
     // Clear current region
@@ -133,7 +133,7 @@ public:
     wxRegionIterator();
     wxRegionIterator(const wxRegion& region);
     wxRegionIterator(const wxRegionIterator& iterator);
-    ~wxRegionIterator();
+    virtual ~wxRegionIterator();
 
     wxRegionIterator& operator=(const wxRegionIterator& iterator);