check private instance data after initialization.

check private instance data after initialization.

Tue Aug 19 05:21:04 2003  Tim Janik  <timj@gtk.org>

        * testgobject.c (main): check private instance data after
        initialization.

        * gtype.c: for instances with private data, store the real class
        pointer in a bsearch array during class initialization.
        (g_type_instance_get_private): fetch the real class of
        an instance from the bsearch array if necessary.