Fix Eluna swallowing checkcast and cancast script results.

Author: Terrorblade

src/server/game/Spells/Auras/SpellAuras.cpp

@@ -2511,8 +2511,14 @@ bool Aura::CallScriptCheckProcHandlers(AuraApplication const* aurApp, ProcEventI
     }
 #ifdef ELUNA
     if (GetCaster())
+    {
+        bool elunaResult = true;
         if (Eluna* e = GetCaster()->GetEluna())
-            result = e->OnAuraCanProc(aurApp->GetBase(), eventInfo);
+            elunaResult = e->OnAuraCanProc(aurApp->GetBase(), eventInfo);
+
+        if (!elunaResult)
+            result = false;
+    }
 #endif
     return result;
 }

src/server/game/Spells/Spell.cpp

@@ -8034,8 +8034,11 @@ SpellCastResult Spell::CallScriptCheckCastHandlers()
         (*scritr)->_FinishScriptCall();
     }
 #ifdef ELUNA
+    SpellCastResult elunaResult = SPELL_CAST_OK;
     if (Eluna* e = GetCaster()->GetEluna())
-        retVal = SpellCastResult(e->OnCheckCast(this));
+        elunaResult = SpellCastResult(e->OnCheckCast(this));
+    if (elunaResult != SPELL_CAST_OK)
+        retVal = elunaResult;
 #endif
     return retVal;
 }