Silenced and fixed many warning messages across multiple files.

src/Items/ItemHandler.cpp

@@ -531,12 +531,15 @@ void cItemHandler::OnFoodEaten(cWorld * a_World, cPlayer * a_Player, cItem * a_I
 
 short cItemHandler::GetDurabilityLossByAction(eDurabilityLostAction a_Action)
 {
-	switch ((int)a_Action)
+	switch (a_Action)
 	{
 		case dlaAttackEntity: return 2;
 		case dlaBreakBlock:   return 1;
 	}
+	
+	#ifndef __clang__
 	return 0;
+	#endif
 }