Fields and methods of a record are marked MANDATED

[Brian Goetz]

We should match the behavior of methods like `Enum::values`.  

> On Oct 10, 2019, at 10:15 AM, Remi Forax <forax at univ-mlv.fr> wrote:
> 
> Hi all,
> fields and methods of a record are marked ACC_MANDATED which contradict JLS 13.1.12 that explains that you can not use ACC_MANDATED on field and method.
> 
> regards,
> Rémi
>