bug#61457: 30.0.50; compiler falsely complains missing ‘describe-char-display’

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: andreas.roehler@easy-emacs.de,  61457@debbugs.gnu.org
> Date: Mon, 13 Feb 2023 16:01:10 -0500
> 
> >> > Don't understand why `symbol-function' of `help-fns--analyze-function' 
> >> > knows
> >> > about it, but compiler and REPL not.
> >> 
> >> I believe you're confused:
> >> 
> >>     ELISP> (symbol-function 'describe-char-display)
> >>     nil
> >>     ELISP> (help-fns--analyze-function 'describe-char-display)
> >>     *** Eval error ***  Symbol’s function definition is void: 
> >> describe-char-display
> >>     ELISP> 
> >> 
> >> My crystal ball suggests you have tested these in an Emacs where
> >> `descr-text` happened to be loaded already.
> >
> > No, "C-h f describe-char-display RET" loads descr-text.
> 
> `C-h f` is not the same as `symbol-function` or
> `help-fns--analyze-function`.  You're just seeing
> `help-enable-auto-load` in action.

If you read the OP, it was "C-h f" that Andreas used, AFAIU.