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*sSpellStore.LookupEntry is no longer valid, use sSpellMgr-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/game/Miscellaneous/SharedDefines.h

@@ -1162,7 +1162,7 @@ enum GhostVisibilityType
 };
 
 // Spell aura states
-enum AuraState
+enum AuraStateType
 {   // (C) used in caster aura state     (T) used in target aura state
     // (c) used in caster aura state-not (t) used in target aura state-not
     AURA_STATE_NONE                         = 0,            // C   |
@@ -2806,7 +2806,7 @@ enum DiminishingGroup
     DIMINISHING_SILENCE             = 16,
     DIMINISHING_SLEEP               = 17,
     DIMINISHING_TAUNT               = 18,
-    DIMINISHING_LIMITONLY           = 19  // No diminishing return, but duration limited to 10 seconds
+    DIMINISHING_LIMITONLY           = 19
 };
 
 enum SummonCategory