bug#35186: 26.1; confusing error message and location on eager dotted pair evaluation

[Lars Ingebrigtsen]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> AFAICT it comes from these lines (line 776 and following) in
> `cconv-analyze-form' in cconv.el:
>
> #+begin_src emacs-lisp
>     (`(,_ . ,body-forms)    ; First element is a function or whatever.
>      (dolist (form body-forms) (cconv-analyze-form form env)))
> #+end_src
>
> It's not an explicit error but just dolist barfing.

I've tried sprinkling some messaging liberally over cconv-analyze-form,
and I'm unable to make it trigger in the test case.  It does seem likely
that the error is from a dolist somewhere, but it seems to happen before
we get to that function...

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