Sat Jan 24 23:52:08 1998 Martin M. Hunt <hunt@cygnus.com>

Sat Jan 24 23:52:08 1998  Martin M. Hunt  <hunt@cygnus.com>
	* gdbtk.c: Merge from Foundry branch.
	(TclDebug): New debugging function.
	(gdb_loc): For frames, find address of calling function
	instead of whatever is on the stack (usually the next
	instruction).
	(gdb_listfiles): Takes an optional pathname argument and
	returns an alphabetized list of basenames of files in the
	path.