issue #0002080: Attempt to remove FEM analysis result (displacement & stress) results in false warning

src/Gui/ViewProviderDocumentObject.h

@@ -77,6 +77,8 @@ public:
     void updateView();
     /// Get the object of this ViewProvider object
     App::DocumentObject *getObject(void) const {return pcObject;}
+    /// Asks the view provider if the given object can be deleted.
+    virtual bool canDelete(App::DocumentObject* obj) const;
     /// Get the GUI document to this ViewProvider object
     Gui::Document* getDocument() const;
     /// Get the python wrapper for that ViewProvider