bug#58563: 29.0.50; Generic functions and advertised-calling-convention

[Basil L. Contovounesios]

Basil L. Contovounesios [2022-10-16 13:24 +0300] wrote:

> Further to https://bugs.gnu.org/58531#25, generic functions do not
> currently support advertised-calling-convention very well (or vice
> versa).
>
> For example, starting with:
>
>   (cl-defgeneric my-foo (x &optional _y)
>     "Frobnicate X."
>     (declare (advertised-calling-convention (x) "29.1"))
>     x)
>
> Any code that calls my-foo with two arguments correctly gives rise to a
> warning during byte-compilation.

Except inside ert-deftest, actually.  I wonder why?

-- 
Basil