feat(Core/Maps): AreaBoundary (#10525)

* cherry-picked commit (https://github.com/TrinityCore/TrinityCore/commit/2da458c56d024aac04468ce2af454a83ad790bf6)

src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp

@@ -163,7 +163,7 @@ public:
             events.Reset();
         }
 
-        void EnterEvadeMode() override
+        void EnterEvadeMode(EvadeReason /*why*/) override
         {
             me->DespawnOrUnsummon(1);
         }
@@ -267,7 +267,7 @@ public:
             events.Reset();
         }
 
-        void EnterEvadeMode() override
+        void EnterEvadeMode(EvadeReason /*why*/) override
         {
             Talk(SAY_WIPE);
             me->DespawnOrUnsummon(1);

src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/instance_magtheridons_lair.cpp

@@ -19,10 +19,15 @@
 #include "ScriptMgr.h"
 #include "magtheridons_lair.h"
 
+BossBoundaryData const boundaries =
+{
+    { TYPE_MAGTHERIDON, new CircleBoundary(Position(-18.70f, 2.24f), 52.30) }
+};
+
 DoorData const doorData[] =
 {
-    { GO_MAGTHERIDON_DOORS,  TYPE_MAGTHERIDON,   DOOR_TYPE_ROOM,  BOUNDARY_S },
-    { 0,                0,              DOOR_TYPE_ROOM,     BOUNDARY_NONE } // END
+    { GO_MAGTHERIDON_DOORS,     TYPE_MAGTHERIDON,           DOOR_TYPE_ROOM },
+    { 0,                        0,                          DOOR_TYPE_ROOM } // END
 };
 
 MinionData const minionData[] =
@@ -42,6 +47,7 @@ public:
             SetBossNumber(MAX_ENCOUNTER);
             LoadDoorData(doorData);
             LoadMinionData(minionData);
+            LoadBossBoundaries(boundaries);
         }
 
         void Initialize() override