bug#12266: 24.1; c-looking-at-inexpr-block: wrong type argument

[Julian Stecklina]

Hello,

I see a similar error on 24.2 (gentoo amd64). Backtrace:

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p (3547 . 
3606))
  c-looking-at-inexpr-block((3547 . 3606) (3547 . 3606))
  c-inside-bracelist-p(1186 (1186 (738 . 1077) (3547 . 3606) 1186 1186 (738 . 
1077) 1186 (738 . 1077) 1186 (738 . 1077) 1186 (738 . 1077) 1186 (738 . 1077) 
(738 . 1077)))
  c-guess-basic-syntax()
  c-indent-line()
  #[nil "\302\303 !\210\304>\203.\212\305 \210\306\307x\210\305 \210\310 
)i\310 X\203'\311  !\202,\212\311 !))\207 \207" [indent-line-function 
column syntax-propertize line-end-position (indent-relative 
indent-relative-maybe) beginning-of-line "\n   " nil current-indentation 
indent-line-to] 2 2125984 nil]()
  c-indent-command(nil)
  c-indent-line-or-region(nil nil)
  call-interactively(c-indent-line-or-region nil nil)

Happens occasionally. Not sure how to reproduce it.

Julian