Add ::Ref classes for every missing C++ class (going by REGISTER_CLASS calls).

xs/xsp/typemap.xspt

@@ -79,22 +79,17 @@
 %typemap{Clone<PrintState>}{simple};
 %typemap{PrintRegion*};
 %typemap{Ref<PrintRegion>}{simple};
-%typemap{Clone<PrintRegion>}{simple};
 %typemap{PrintObject*};
 %typemap{Ref<PrintObject>}{simple};
-%typemap{Clone<PrintObject>}{simple};
 %typemap{Print*};
 %typemap{Ref<Print>}{simple};
 %typemap{Clone<Print>}{simple};
 %typemap{LayerRegion*};
 %typemap{Ref<LayerRegion>}{simple};
-%typemap{Clone<LayerRegion>}{simple};
 %typemap{Layer*};
 %typemap{Ref<Layer>}{simple};
-%typemap{Clone<Layer>}{simple};
 %typemap{SupportLayer*};
 %typemap{Ref<SupportLayer>}{simple};
-%typemap{Clone<SupportLayer>}{simple};
 %typemap{PlaceholderParser*};
 %typemap{Ref<PlaceholderParser>}{simple};
 %typemap{Clone<PlaceholderParser>}{simple};