GDB now allows registers to be placed in groups, such as "float",
"general", "sse", etc.  This patch adds an optionmenu to the register
display to allow the group to be selected.  The default group is "all".
Screenshot attached.

2002-12-17  Martin M. Hunt  <hunt@redhat.com>

	* library/regwin.itb (_load_prefs): Get list of registers from
	the group name.
	(_build_win): Remove old menu system.  Replace with an optionmenu
	that contains all the valid group names for this architecture.
	(_layout_table): No need to update old menu.
	(_but3): Add "Close" to popup menu.
	(_delete_from_display): No need to update old menu.
	(_display_all): Ditto.
	(_post_menu): Deleted.
	(_select_group): New method. Callback for group optionmenu.
	
	* library/regwin.ith: New private variable _group.
	New private method _select_group.  Removed _post_menu.

	* generic/gdbtk-register.c: Include reggroups.h.
	(gdb_register_info): Add "group" and "grouplist".
	(gdb_regformat): Fix Tcl_WrongNumArgs call so it doesn't crash.
	(gdb_reggrouplist): New function. Returns the names of the
	register groups.
	(gdb_reggroup): New function. Returns the register numbers of the
registers in a group.