bug#8432: 24.0.50; Eldoc highlighting is confused by dolist and dotimes

[Stephen Berman <stephen.berman@gmx.net>]

1. emacs -Q
2. In *scratch* insert the following sexp:
   (dolist (e '(a b c))
     (message "Done")
     (message "Done")
     (message "Done"))
3. M-x turn-on-eldoc-mode
4. Putting point on (really, right after) the space after "dolist" makes
   the echo area display this:  
   dolist: ((VAR LIST [RESULT]) BODY...)
5. Move point one character to the right, onto (really, right after) the
   left parenthesis before "e".
   => Now "VAR" is highlighted in the echo area.  Move point one more
   character to the right and "VAR" is no longer highlighted (though
   point is now really on/after the argument VAR of dolist).  There is
   no highlighting as point moves further rightwards, until it is at the
   end of the line, right after the closing parenthesis of the argument
   list: now "VAR" is highlighted again.
6. Move point to column 0 of the first "message" sexp.
   => Now "LIST" is highlighted in the echo area.
7. Move point to column 0 of the second "message" sexp.
   => Now "[RESULT]" is highlighted in the echo area.
8. Move point to column 0 of the third "message" sexp.
   => Now "BODY" is highlighted in the echo area.

The same (mis)highlighting pattern arises with dotimes.


In GNU Emacs 24.0.50.1 (i686-suse-linux-gnu, GTK+ Version 2.20.1)
 of 2011-04-03 on escher
Windowing system distributor `The X.Org Foundation', version 11.0.10800000
configured using `configure  '--without-toolkit-scroll-bars' 'CFLAGS=-g -O2 -fno-optimize-sibling-calls''

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: en_US.UTF-8
  value of $XMODIFIERS: @im=local
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t