bug#36237: Support (rx (and (regexp EXPR) (regexp-quote EXPR)))

[Juri Linkov]

> I kinda hope not (but again, I'm ignorant of the
> context).  If this is meant to stand for a regexp
> thingie, and you want an alternative to `rx',
> please try for something that suggests "regexp"
> or "regular expression" - `rx2', `rex', `rgx',
> `rg' ... - something suggestive.
>
> (We've had 45+ years of `C' as the successor to
> `B'.  Surely we can do better. ;-))

rx++