bug#16504: 24.3.50; emacs_backtrace.txt

[Eli Zaretskii]

> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Mon, 20 Jan 2014 12:58:50 +0100
> Cc: 16504@debbugs.gnu.org
> 
> w32_backtrace at w32fns.c:8383
> emacs_abort at w32fns.c:8415
> terminate_due_to_signal at emacs.c:378
> die at alloc.c:6761
> face_for_char at fontset.c:914

It aborts here:

  int
  face_for_char (struct frame *f, struct face *face, int c,
                 ptrdiff_t pos, Lisp_Object object)
  {
    Lisp_Object fontset, rfont_def, charset;
    int face_id;
    int id;

    eassert (fontset_id_valid_p (face->fontset));  <<<<<<<<<<<<<<