bug#1042: 23.0.60; read-char can evaluate to non-character

[Markus Triska]

In "$ emacs -Q", when I evaluate:

   (read-char)

and press C-0, I get:

   67108912

However, (characterp 67108912) is nil, and (char-to-string 67108912)
throws an error. Thus I expect an error also from read-char in this
case. Besides, in `char-resolve-modifers', "modifiers" is misspelled.

In GNU Emacs 23.0.60.1 (i386-apple-darwin8.11.1, GTK+ Version 2.12.9)
 of 2008-09-24 on mt-computer.local
Windowing system distributor `The XFree86 Project, Inc', version 11.0.40400000
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_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t