Core/Misc: Define some methods const

src/server/game/AI/ScriptedAI/ScriptedCreature.h

@@ -54,7 +54,7 @@ class SummonList : public std::list<uint64>
 
         void DoZoneInCombat(uint32 entry = 0);
         void RemoveNotExisting();
-        bool HasEntry(uint32 entry);
+        bool HasEntry(uint32 entry) const;
     private:
         Creature* me;
 };