bug#36603: [PATCH] Simplify calling convention of describe_map

[Noam Postavsky]

Noam Postavsky <npostavs@gmail.com> writes:

> Stefan Kangas <stefan@marxist.se> writes:
>
>> +  Lisp_Object seen_orig = Qnil;
>> +  Lisp_Object *seen = &seen_orig;
>
> Do we really need the seen_orig variable?  It looks like there is no
> reason for having seen as a pointer at all, but maybe I'm missing
> something.

Actually, maybe the patch is wrong (i.e., over-simplifying), because it
has describe_map start with a fresh seen pointer each time; but the
current code passes the same pointer to each describe_map call in a
loop.