Gui: Use freecad_cast whenever possible

src/Gui/ViewProviderDocumentObject.h

@@ -94,7 +94,7 @@ public:
     App::DocumentObject *getObject() const {return pcObject;}
     /// Get the object of this ViewProvider object as specified type
     template <class T>
-    T *getObject() const { return dynamic_cast<T*>(pcObject); }
+    T *getObject() const { return freecad_cast<T*>(pcObject); }
     /// Asks the view provider if the given object can be deleted.
     bool canDelete(App::DocumentObject* obj) const override;
     /// Ask the view provider if it accepts object deletions while in edit