Core/Scripts: Allow spell script ValidateSpellInfo to work with any container type

(cherry picked from commit f2f0aeb562)

src/server/game/Spells/SpellScript.cpp

@@ -48,6 +48,7 @@ bool _SpellScript::_ValidateSpellInfo(uint32 spellId)
         TC_LOG_ERROR("scripts.spells", "_SpellScript::ValidateSpellInfo: Spell %u does not exist.", spellId);
         return false;
     }
+
     return true;
 }
 

src/server/game/Spells/SpellScript.h

@@ -178,16 +178,16 @@ class TC_GAME_API _SpellScript
         }
 
     private:
-        template <class InputIt>
-        static bool _ValidateSpellInfo(InputIt first, InputIt last)
+        template<typename Iterator>
+        static bool _ValidateSpellInfo(Iterator begin, Iterator end)
         {
             bool allValid = true;
-            while (first != last)
+            while (begin != end)
             {
-                if (!_ValidateSpellInfo(*first))
+                if (!_ValidateSpellInfo(*begin))
                     allValid = false;
 
-                ++first;
+                ++begin;
             }
             return allValid;
         }