bug#60450: 30.0.50; Strange behavior of compiler macros in *scratch*

[Eli Zaretskii <eliz@gnu.org>]

> From: Lynn Winebarger <owinebar@gmail.com>
> Date: Sun, 7 May 2023 21:59:51 -0400
> 
> I was going to open a feature request bug for a function to
> specifically expand compiler-macros, but if the behavior reported here
> is intended, then I don't really need to.
> 
> However, if this is the intended behavior of macroexpand-all, it is
> inconsistent with the documentation, which says:
> 
>      ‘macroexpand-all’ expands macros like ‘macroexpand’, but will look
>      for and expand all macros in FORM, not just at the top-level.  If
>      no macros are expanded, the return value is ‘eq’ to FORM.
> 
> But macroexpand is defined in C source code, and definitely *only*
> expands function symbols whose value has a car of 'macro.
> 
> Could someone determine if this is a bug in macroexpand-all (e.g. it
> should be checking whether it is being called while byte-compiling),
> or just a documentation bug?

Adding Stefan.