Gui: fix -Winconsistent-missing-override, TD: fix -Wunused-parameter

src/Gui/ViewProviderPart.h

@@ -48,7 +48,7 @@ public:
     
     /// deliver the icon shown in the tree view
     /// override from ViewProvider.h
-    virtual QIcon getIcon(void) const;
+    virtual QIcon getIcon(void) const override;
 
 protected:
     /// get called by the container whenever a property has been changed

src/Mod/TechDraw/App/Cosmetic.cpp

@@ -1003,6 +1003,8 @@ std::pair<Base::Vector3d, Base::Vector3d> CenterLine::calcEndPoints2Lines(DrawVi
                                                       double rotate, bool flip)
                                                       
 {
+    Q_UNUSED(flip)
+
 //    Base::Console().Message("CL::calc2Lines() - mode: %d flip: %d edgeNames: %d\n", mode, flip, edgeNames.size());
     std::pair<Base::Vector3d, Base::Vector3d> result;
     if (edgeNames.empty()) {