Due to the poor performance Enum.IsDefined producesi’m looking for an
alternative to this utility method:
Note:  the enums passed to the method will not change during runtime.

public static object EnumTranslate(Type enumType, object enumValue) {
 if (!Enum.IsDefined(enumType, enumValue)) {
   if (Attribute.IsDefined(enumType, typeof(FlagsAttribute))) {
     // just ignore
   } else {
     throw new InvalidEnumArgumentException();
   }
 }
 return Enum.ToObject(enumType, enumValue);
}