bug#4180: 23.1.50; server-raise-frame or raise-frame does not work on ns port

[Leo]

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

On other platforms when you visit a file with 'emacsclient -n file1', it
is opened in Emacs and the frame is raised. This does not work on ns
port.

Setting variable server-raise-frame or calling function raise-frame has
no effect.

This seems like a big productivity killer, for example, when working
with LaTeX files with inverse pdf search.

In GNU Emacs 23.1.50.1 (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
 of 2009-08-10 on neutron.local
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t