Crash on bootstrap

[Chong Yidong]

Your latest commit causes a crash on `make bootstrap'.

Compiling /home/cyd/trunk/lisp/emacs-lisp/bytecomp.el
Fatal error (6)Aborted (core dumped)
make[3]: *** [/home/cyd/trunk/lisp/emacs-lisp/bytecomp.elc] Error 134
make[3]: Leaving directory `/home/cyd/src/emacs/trunk/lisp'
make[2]: *** [bootstrap-emacs] Error 2
make[2]: Leaving directory `/home/cyd/src/emacs/trunk/src'
make[1]: *** [src] Error 2
make[1]: Leaving directory `/home/cyd/src/emacs/trunk'
make: *** [bootstrap] Error 2

Bootstrapping works if I revert this:

  revno: 109788
  committer: Dmitry Antipov <address@hidden>
  branch nick: trunk
  timestamp: Mon 2012-08-27 08:15:33 +0400
  message:
  Special MEM_TYPE_SPARE to denote reserved memory.
  * alloc.c (enum mem_type): New memory type.
  (refill_memory_reserve): Use new type for spare memory.
  This prevents live_cons_p and live_string_p from incorrect
  detection of uninitialized objects from spare memory as live.