DataType refactoring - in progress

src/Umbraco.Core/Cache/HttpRuntimeCacheProvider.cs

@@ -153,8 +153,7 @@ namespace Umbraco.Core.Cache
             //return result.Value;
 
             value = result.Value; // will not throw (safe lazy)
-            var eh = value as ExceptionHolder;
-            if (eh != null) throw new Exception("Exception while creating a value.", eh.Exception); // throw once!
+            if (value is ExceptionHolder eh) eh.Exception.Throw(); // throw once!
             return value;
         }