bug#62248: 29.0.60; nil obsolete

[Eli Zaretskii]

> Cc: luangruo@yahoo.com, 62248@debbugs.gnu.org
> Date: Sat, 18 Mar 2023 09:05:11 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> If so, how about running Emacs with a breakpoint in Fput and condition
> that symbol == Qnil (assuming your Emacs is not configured to
> represent Lisp objects as structs)?

Or how about adding

  if (NILP (symbol) || EQ (symbol, Qt))
    emacs_abort ();

to Fput, and then run with this under GDB?