DataType refactoring - in progress

src/Umbraco.Core/Cache/ObjectCacheRuntimeCacheProvider.cs

@@ -225,8 +225,7 @@ namespace Umbraco.Core.Cache
             //return result.Value;
 
             var value = result.Value; // will not throw (safe lazy)
-            var eh = value as DictionaryCacheProviderBase.ExceptionHolder;
-            if (eh != null) throw eh.Exception; // throw once!
+            if (value is DictionaryCacheProviderBase.ExceptionHolder eh) eh.Exception.Throw(); // throw once!
             return value;
         }