Core: Fix non-PCH build and remove a few warnings.

src/server/game/AI/CoreAI/GameObjectAI.h

@@ -50,7 +50,7 @@ class GameObjectAI
         virtual void Destroyed(Player* /*player*/, uint32 /*eventId*/) {}
         virtual void SetData(uint32 /*id*/, uint32 /*value*/) {}
         virtual void OnGameEvent(bool /*start*/, uint16 /*eventId*/) {}
-        virtual void OnStateChanged(uint32 state, Unit* unit) { }
+        virtual void OnStateChanged(uint32 /*state*/, Unit* /*unit*/) { }
 };
 
 class NullGameObjectAI : public GameObjectAI

src/server/game/Entities/Player/Player.cpp

@@ -305,7 +305,7 @@ bool TradeData::HasItem(uint64 itemGuid) const
     return false;
 }
 
-TradeSlots const TradeData::GetTradeSlotForItem(uint64 itemGuid)
+TradeSlots TradeData::GetTradeSlotForItem(uint64 itemGuid) const
 {
     for (uint8 i = 0; i < TRADE_SLOT_COUNT; ++i)
         if (m_items[i] == itemGuid)

src/server/game/Entities/Player/Player.h

@@ -1003,7 +1003,7 @@ class TradeData
 
         Item* GetItem(TradeSlots slot) const;
         bool HasItem(uint64 itemGuid) const;
-        TradeSlots const GetTradeSlotForItem(uint64 itemGuid);
+        TradeSlots GetTradeSlotForItem(uint64 itemGuid) const;
         void SetItem(TradeSlots slot, Item* item);
 
         uint32 GetSpell() const { return m_spell; }

src/server/game/Movement/MovementGenerators/ConfusedMovementGenerator.cpp

@@ -22,6 +22,7 @@
 #include "VMapFactory.h"
 #include "MoveSplineInit.h"
 #include "MoveSpline.h"
+#include "Player.h"
 
 #ifdef MAP_BASED_RAND_GEN
 #define rand_norm() unit.rand_norm()

src/server/game/Movement/MovementGenerators/PointMovementGenerator.cpp

@@ -23,6 +23,7 @@
 #include "World.h"
 #include "MoveSplineInit.h"
 #include "MoveSpline.h"
+#include "Player.h"
 
 //----- Point Movement Generator
 template<class T>

src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.cpp

@@ -24,6 +24,7 @@
 #include "World.h"
 #include "MoveSplineInit.h"
 #include "MoveSpline.h"
+#include "Player.h"
 
 #include <cmath>
 

src/server/game/Movement/MovementGenerators/TargetedMovementGenerator.h

@@ -22,6 +22,7 @@
 #include "MovementGenerator.h"
 #include "FollowerReference.h"
 #include "Timer.h"
+#include "Unit.h"
 
 class TargetedMovementGeneratorBase
 {