bug#56641: Deprecate `lsh`

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> If it's rare enough (as it should be), I don't see the annoyance.  Am
> I missing something?

It might be rare, but there's nothing wrong with using lsh for its
intended purpose, which is handling negative numbers correctly in
several different situations.

Byte-compiler warnings are supposed to point out problems.  Using lsh is
not a problem, using lsh incorrectly is, so it should not issue warnings
for all uses of lsh.