bug#10463: 24.0.92; c-literal-limits out of range

[martin rudalics]

For quite some time, when editing c-mode buffers I get errors which
typically look like:

Debugger entered--Lisp error: (args-out-of-range 170988 178401)
  parse-partial-sexp(170988 178401)
  c-literal-limits(nil nil t)
  c-indent-new-comment-line(t)
  default-indent-new-line(t)
  do-auto-fill()
  apply(do-auto-fill nil)
  c-mask-paragraph(nil t do-auto-fill)
  c-do-auto-fill()
  self-insert-command(1)
  call-interactively(self-insert-command nil nil)

At this time the buffer is visibly narrowed - the arguments of
`parse-partial-sexp' were apparently within (point-min) and (point-max)
of the widened buffer but the second argument was likely after the end
of the the narrowed buffer.

Moreover, the buffer was no more associated with the file I was trying
to edit, so reverting the buffer was impossible, undo information had
been discarded, killing the buffer was possible without asking.


In GNU Emacs 24.0.92.1 (i386-mingw-nt5.1.2600)
 of 2012-01-08 on NESTOR
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --no-opt'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  shell-dirtrack-mode: t
  scroll-restore-mode: t
  regexp-lock-mode: t
  eldoc-header-mode: t
  show-paren-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  temp-buffer-resize-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <help-menu> <send-emacs-bug
-report>

Recent messages:
Loading paren...done
Loading vc-cvs...done
Loading vc-bzr...done
With .emacs from "2012-01-09 10:52:57 martin"

Load-path shadows:
None found.

Features:
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hippie-exp dabbrev emacsbug cus-edit wid-edit cc-mode cc-fonts cc-guess
cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs vc-bzr
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elinfo-support elinfo texinfo info shell pcomplete comint ring vc-cvs
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easy-mmode time-stamp eldoc help-fns find-dired dired regexp-opt
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