Core/DBLayer: Prevent using prepared statements on wrong database

src/server/game/Entities/GameObject/GameObject.cpp

@@ -903,7 +903,7 @@ void GameObject::SaveToDB(uint32 mapid, uint8 spawnMask)
 
     uint8 index = 0;
 
-    PreparedStatement* stmt = WorldDatabase.GetPreparedStatement(WORLD_DEL_GAMEOBJECT);
+    WorldDatabasePreparedStatement* stmt = WorldDatabase.GetPreparedStatement(WORLD_DEL_GAMEOBJECT);
     stmt->setUInt32(0, m_spawnId);
     trans->Append(stmt);
 
@@ -1023,7 +1023,7 @@ bool GameObject::LoadFromDB(ObjectGuid::LowType spawnId, Map* map, bool addToMap
 
     // delete data from memory
     sObjectMgr->DeleteGameObjectData(spawnId);
-    PreparedStatement* stmt = WorldDatabase.GetPreparedStatement(WORLD_DEL_GAMEOBJECT);
+    WorldDatabasePreparedStatement* stmt = WorldDatabase.GetPreparedStatement(WORLD_DEL_GAMEOBJECT);
     stmt->setUInt32(0, spawnId);
     trans->Append(stmt);