Scripts/Battlefield: Move npc_wg_give_promotion_credit script to BattlefieldWG

The script references BattlefieldWG, which is not exported in dynamic builds.
Move the script, so it is in the same library.

src/server/scripts/Battlefield/BattlefieldWG.cpp

@@ -21,6 +21,7 @@
 
 #include "BattlefieldWG.h"
 #include "AchievementMgr.h"
+#include "BattlefieldMgr.h"
 #include "Battleground.h"
 #include "CreatureTextMgr.h"
 #include "GameObject.h"
@@ -32,6 +33,7 @@
 #include "Opcodes.h"
 #include "Player.h"
 #include "Random.h"
+#include "ScriptedCreature.h"
 #include "ScriptMgr.h"
 #include "SpellAuras.h"
 #include "TemporarySummon.h"
@@ -1851,7 +1853,36 @@ public:
     }
 };
 
+class npc_wg_give_promotion_credit : public CreatureScript
+{
+public:
+    npc_wg_give_promotion_credit() : CreatureScript("npc_wg_give_promotion_credit") { }
+
+    struct npc_wg_give_promotion_creditAI : public ScriptedAI
+    {
+        npc_wg_give_promotion_creditAI(Creature* creature) : ScriptedAI(creature) { }
+
+        void JustDied(Unit* killer) override
+        {
+            if (!killer || killer->GetTypeId() != TYPEID_PLAYER)
+                return;
+
+            BattlefieldWG* wintergrasp = static_cast<BattlefieldWG*>(sBattlefieldMgr->GetBattlefieldByBattleId(BATTLEFIELD_BATTLEID_WG));
+            if (!wintergrasp)
+                return;
+
+            wintergrasp->HandlePromotion(killer->ToPlayer(), me);
+        }
+    };
+
+    CreatureAI* GetAI(Creature* creature) const override
+    {
+        return new npc_wg_give_promotion_creditAI(creature);
+    }
+};
+
 void AddSC_BF_wintergrasp()
 {
     new Battlefield_wintergrasp();
+    new npc_wg_give_promotion_credit();
 }

src/server/scripts/Northrend/zone_wintergrasp.cpp

@@ -397,34 +397,6 @@ class go_wg_vehicle_teleporter : public GameObjectScript
         }
 };
 
-class npc_wg_give_promotion_credit : public CreatureScript
-{
-    public:
-        npc_wg_give_promotion_credit() : CreatureScript("npc_wg_give_promotion_credit") { }
-
-        struct npc_wg_give_promotion_creditAI : public ScriptedAI
-        {
-            npc_wg_give_promotion_creditAI(Creature* creature) : ScriptedAI(creature) { }
-
-            void JustDied(Unit* killer) override
-            {
-                if (!killer || killer->GetTypeId() != TYPEID_PLAYER)
-                    return;
-
-                BattlefieldWG* wintergrasp = static_cast<BattlefieldWG*>(sBattlefieldMgr->GetBattlefieldByBattleId(BATTLEFIELD_BATTLEID_WG));
-                if (!wintergrasp)
-                    return;
-
-                wintergrasp->HandlePromotion(killer->ToPlayer(), me);
-            }
-        };
-
-        CreatureAI* GetAI(Creature* creature) const override
-        {
-            return new npc_wg_give_promotion_creditAI(creature);
-        }
-};
-
 class spell_wintergrasp_force_building : public SpellScriptLoader
 {
     public:
@@ -606,7 +578,6 @@ void AddSC_wintergrasp()
     new npc_wg_spirit_guide();
     new npc_wg_demolisher_engineer();
     new go_wg_vehicle_teleporter();
-    new npc_wg_give_promotion_credit();
     new spell_wintergrasp_force_building();
     new spell_wintergrasp_grab_passenger();
     new achievement_wg_didnt_stand_a_chance();