[m-rev.] for review: add <<u and >>u as operators

[Julien Fischer]

On Mon, 5 Dec 2022, Zoltan Somogyi wrote:

> On Sun, 04 Dec 2022 22:14:23 +1100 (AEDT), "Zoltan Somogyi" <zoltan.somogyi at runbox.com> wrote:
>
>> This diff modifies all three variants of the lexer.
>
> Does anyone intend to review this? It is just the first step
> in a bootstrap process, so I would like to commit it by this evening.

I will take a look this afternoon.

Julien.