bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel

[Eli Zaretskii]

> From: Nix <nix@esperi.org.uk>
> Cc: 10617@debbugs.gnu.org
> Date: Mon, 30 Jan 2012 19:11:55 +0000
> 
> >> (gdb) print it->string
> >> $6 = 12065314
> >
> > What does "xtype" say about this string?  If it says Lisp_String, what
> > does "xstring" say?
> 
> (gdb) xtype
> Lisp_Symbol
> (gdb) xstring
> $2 = (struct Lisp_String *) 0xb81a20
> There is no member named data.
> 
> Not very useful.

It's a symbol (see above), not a string, so using "xstring" with it is
not useful.  Try "xsymbol" (I'm guessing it's nil).