DDEve: fix (menu)bar shadow warnings

DDEve/include/DDEve/DD4hepMenu.h

@@ -48,7 +48,7 @@ namespace dd4hep {
     virtual ~DD4hepMenu();
 
     /// Add the menu to the menu bar
-    virtual void Build(TGMenuBar* bar, int hints=kLHintsNormal)  override;
+    virtual void Build(TGMenuBar* menuBar, int hints=kLHintsNormal)  override;
     /// Callback when loading the configuration
     void OnLoadXML(TGMenuEntry* entry, void* ptr);
     /// Callback when loading the configuration

DDEve/include/DDEve/Display.h

@@ -212,9 +212,9 @@ namespace dd4hep {
     virtual void OnNewEvent(EventHandler& handler)  override;
 
     /// Build the DDEve specific menues. Default bar is the ROOT browser's bar
-    virtual void BuildMenus(TGMenuBar* bar=0);
+    virtual void BuildMenus(TGMenuBar* menuBar=0);
     /// Add new menu to the main menu bar
-    virtual void AddMenu(TGMenuBar* bar, PopupMenu* menu, int hints=kLHintsNormal);
+    virtual void AddMenu(TGMenuBar* menuBar, PopupMenu* menu, int hints=kLHintsNormal);
 
     ClassDefOverride(Display,0);
   };

DDEve/include/DDEve/PopupMenu.h

@@ -53,7 +53,7 @@ namespace dd4hep {
     TGPopupMenu& menu()  {  return m_popup; }
 
     /// Add the menu to the menu bar
-    virtual void Build(TGMenuBar* bar, int hints=kLHintsNormal);
+    virtual void Build(TGMenuBar* menuBar, int hints=kLHintsNormal);
 
     /// Add a menu separator to the menu.
     virtual void AddSeparator(TGMenuEntry* before = 0);

DDEve/include/DDEve/ViewMenu.h

@@ -48,7 +48,7 @@ namespace dd4hep {
     virtual ~ViewMenu();
 
     /// Add the menu to the menu bar
-    virtual void Build(TGMenuBar* bar, int hints=kLHintsNormal)  override;
+    virtual void Build(TGMenuBar* menuBar, int hints=kLHintsNormal)  override;
 
     /// Import Geometry data and build the view
     void BuildView(View *view)  const;