bug#16033: 24.3.50; window--reseize-this-window, args-out-of-range

[Eli Zaretskii <eliz@gnu.org>]

> From: Yagnesh Raghava Yakkala <hi@yagnesh.org>
> Date: Tue, 03 Dec 2013 15:26:51 +0900
> 
> 
> Latest build from emacs
> trunk(yamaoka@jpl.org-20131203045417-2co55ww8uqmoh5cb) I get the
> following backtrace.
> 
> --8<---------------cut here---------------start------------->8---
> Debugger entered--Lisp error: (args-out-of-range -19 0 2147483001)
>   set-window-new-pixel(#<window 3 on *scratch*> -19 t)
>   window--resize-this-window(#<window 3 on *scratch*> -19 nil nil t before 646)

Paul, it's because of your commit:

  revno: 115359
  committer: Paul Eggert <eggert@cs.ucla.edu>
  branch nick: trunk
  timestamp: Tue 2013-12-03 02:27:10 +0000
  message:
    Minor integer overflow fixes.

    * window.c (Fset_window_new_pixel, grow_mini_window):
    * xdisp.c (Fwindow_text_pixel_size):
    Avoid undefined behavior on signed integer overflow.
    * xfns.c (x_set_mouse_color):
    Check that drag shape fits in 'unsigned', since that's what X wants.

The modified test at the beginning of Fset_window_new_pixel doesn't
DTRT when SIZE is negative (which it legitimately can be when ADD is
non-nil).