Core: Use new SpellInfo class in core. Sadly, this commit is not compatibile with some of the custom code. To make your code work again you may need to change:

*SpellEntry is now SpellInfo
*GetSpellProto is now GetSpellInfo
*SpellEntry::Effect*[effIndex] is now avalible under SpellInfo.Effects[effIndex].*
*sSpellStore.LookupEntry is no longer valid, use sSpellMgr->GetSpellInfo()
*SpellFunctions from SpellMgr.h like DoSpellStuff(spellId) are now: spellInfo->DoStuff()
*SpellMgr::CalculateEffectValue and similar functions are now avalible in SpellEffectInfo class.
*GET_SPELL macro is removed, code which used it is moved to SpellMgr::LoadDbcDataCorrections
*code which affected dbc data in SpellMgr::LoadSpellCustomAttr is now moved to LoadDbcDataCorrections

src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp

@@ -379,7 +379,7 @@ public:
             }
         }
 
-        void SpellHit(Unit* caster, const SpellEntry* spell)
+        void SpellHit(Unit* caster, const SpellInfo* spell)
         {
             if (spell->Id == SPELL_POWER_SPARK_MALYGOS)
             {

src/server/scripts/Northrend/Nexus/Oculus/boss_urom.cpp

@@ -298,7 +298,7 @@ public:
             me->DeleteThreatList();
         }
 
-        void SpellHit(Unit* /*pCaster*/, const SpellEntry* pSpell)
+        void SpellHit(Unit* /*pCaster*/, const SpellInfo* pSpell)
         {
             switch(pSpell->Id)
             {

src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp

@@ -173,7 +173,7 @@ class npc_azure_ring_captain : public CreatureScript
                 me->SetReactState(REACT_AGGRESSIVE);
             }
 
-            void SpellHitTarget(Unit* target, SpellEntry const* spell)
+            void SpellHitTarget(Unit* target, SpellInfo const* spell)
             {
                 if (spell->Id == SPELL_ICE_BEAM)
                 {