bug#10164: 24.0.91; Instant crash enabling linum-mode

[Chong Yidong]

Juanma Barranquero <lekktu@gmail.com> writes:

>> And FWIW, this bug seems to be Windows-only, since I don't see any crash
>> on GNU/Linux.
>
> How do you test it? I get the crash with
>
>   emacs -Q
>   M-x linum-mode <RET>
>
> but not with
>
>   emacs -Q -f linum-mode

Disregard that---I had accidentally recompiled without asserts enabled.
I see the abort now.