Re: Unhelpful text in C-h v search-default-mode

[Eli Zaretskii <eliz@gnu.org>]

> From: Juri Linkov <juri@linkov.net>
> Cc: emacs-devel@gnu.org
> Date: Fri, 29 Dec 2023 09:12:49 +0200
> 
> > In a recent master branch Emacs, (not with -Q), from an info buffer, I
> > did C-h v search-default-mode.  The text printed in *Help* included this:
> >
> >     Its value is
> >     #<subr F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_109>
> >     Original value was nil
> >     Local in buffer *info*<3>; global value is nil
> >
> > ..  This is quite frankly entirely unhelpful; it gives no way to find out
> > what the lambda is, in particular, no way to get to its source code.  It
> > isn't even possible to disassemble the function.
> 
> Another example:
> 
> 0. emacs -Q
> 1. M-x list-timers
> 
>    *     0.1s     t show-paren-function
>    *     0.5s     t #<subr F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_13>
> 
> I wonder how users are supposed to know what function it is?
> Searching by the delay number 0.5 reveals this lambda comes from
> 
>         (setq jit-lock-context-timer
>               (run-with-idle-timer jit-lock-context-time t
>                                    (lambda ()
>                                      (unless jit-lock--antiblink-grace-timer
>                                        (jit-lock-context-fontify)))))
> 

What happens with that in a build without native-compilation? does
what list-timers shows in that case look more friendly?