Core/Instances: Implemented confirmation dialog for players upon entering instance which would permanently bind the player to it, players can now choose to get saved or leave the instance

Also fixes broken build

src/server/game/Server/Protocol/Handlers/MiscHandler.cpp

@@ -1741,3 +1741,22 @@ void WorldSession::HandleHearthAndResurrect(WorldPacket& /*recv_data*/)
     _player->ResurrectPlayer(100);
     _player->TeleportTo(_player->m_homebindMapId, _player->m_homebindX, _player->m_homebindY, _player->m_homebindZ, _player->GetOrientation());
 }
+
+void WorldSession::HandleInstanceLockResponse(WorldPacket& recvPacket)
+{
+    uint8 accept;
+    recvPacket >> accept;
+
+    if (!_player->HasPendingBind())
+    {
+        sLog->outDetail("InstanceLockResponse: Player %s (guid %u) tried to bind himself/teleport to graveyard without a pending bind!", _player->GetName(), _player->GetGUIDLow());
+        return;
+    }
+
+    if (accept)
+        _player->BindToInstance();
+    else
+        _player->RepopAtGraveyard();
+
+    _player->SetPendingBind(NULL, 0);
+}

src/server/game/Server/Protocol/Opcodes.cpp

@@ -345,7 +345,7 @@ OpcodeHandler opcodeTable[NUM_MSG_TYPES] =
     /*0x13C*/ { "SMSG_AI_REACTION",                             STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_ServerSide               },
     /*0x13D*/ { "CMSG_SET_SELECTION",                           STATUS_LOGGEDIN, PROCESS_INPLACE,      &WorldSession::HandleSetSelectionOpcode        },
     /*0x13E*/ { "CMSG_EQUIPMENT_SET_DELETE",                    STATUS_LOGGEDIN, PROCESS_THREADUNSAFE, &WorldSession::HandleEquipmentSetDelete        },
-    /*0x13F*/ { "CMSG_INSTANCE_LOCK_WARNING_RESPONSE",          STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_NULL                     },
+    /*0x13F*/ { "CMSG_INSTANCE_LOCK_WARNING_RESPONSE",          STATUS_LOGGEDIN, PROCESS_THREADUNSAFE, &WorldSession::HandleInstanceLockResponse      },
     /*0x140*/ { "CMSG_UNUSED2",                                 STATUS_NEVER,    PROCESS_INPLACE,      &WorldSession::Handle_NULL                     },
     /*0x141*/ { "CMSG_ATTACKSWING",                             STATUS_LOGGEDIN, PROCESS_INPLACE,      &WorldSession::HandleAttackSwingOpcode         },
     /*0x142*/ { "CMSG_ATTACKSTOP",                              STATUS_LOGGEDIN, PROCESS_INPLACE,      &WorldSession::HandleAttackStopOpcode          },

src/server/game/Server/WorldSession.cpp

@@ -402,6 +402,11 @@ void WorldSession::LogoutPlayer(bool Save)
             _player->BuildPlayerRepop();
             _player->RepopAtGraveyard();
         }
+        else if (_player->HasPendingBind())
+        {
+            _player->RepopAtGraveyard();
+            _player->SetPendingBind(NULL, 0);
+        }
 
         //drop a flag if player is carrying it
         if (Battleground *bg = _player->GetBattleground())

src/server/game/Server/WorldSession.h

@@ -754,6 +754,7 @@ class WorldSession
         void HandleWhoisOpcode(WorldPacket& recv_data);
         void HandleResetInstancesOpcode(WorldPacket& recv_data);
         void HandleHearthAndResurrect(WorldPacket& recv_data);
+        void HandleInstanceLockResponse(WorldPacket& recvPacket);
 
         // Looking for Dungeon/Raid
         void HandleLfgSetCommentOpcode(WorldPacket & recv_data);