ClassIDs are now actually typeinfo name pointers.

I'll see, next, about the `instanceOf` thing, and going with
more normal RTTI routes.

dw/oofawarewidget.hh

@@ -195,7 +195,7 @@ public:
       SL_START, SL_BACKGROUND, SL_SC_BOTTOM, SL_IN_FLOW, SL_OOF_REF,
       SL_OOF_CONT, SL_SC_TOP, SL_END };
 
-   static int CLASS_ID;
+   static std::intptr_t CLASS_ID;
 
    OOFAwareWidget ();
    ~OOFAwareWidget ();