bug#16288: 24.3.50; emacs_backtrace.txt

[Eli Zaretskii]

> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Sun, 29 Dec 2013 22:01:32 +0100
> Cc: 16288@debbugs.gnu.org
> 
> ??
> ??:0
> w32_backtrace at w32fns.c:8389
> emacs_abort at w32fns.c:8421
> terminate_due_to_signal at emacs.c:378
> die at alloc.c:6760
> rotate_left at intervals.c:419
> balance_an_interval at intervals.c:456
> balance_intervals_internal at intervals.c:506
> balance_intervals_internal at intervals.c:503
> balance_intervals_internal at intervals.c:503
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:503
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:503
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:503
> balance_intervals_internal at intervals.c:505
> balance_intervals_internal at intervals.c:505
> balance_intervals at intervals.c:514
> gc_sweep at alloc.c:6642
> Fgarbage_collect at alloc.c:5571
> maybe_gc at lisp.h:4513

Something is again wrong in intervals.c, and this was during GC.
Looks related or similar to #16234.  Weird, intervals.c wasn't touched
in months.