proposed PATCH: make watchpoints work correctly

[Paul Koning]

Missed the changelog entry for this patch:

2003-05-28  Paul Koning  <pkoning@equallogic.com>

	* breakpoint.c: (free_valchain) New function.
	(insert_breakpoints, delete_breakpoint) Use free_valchain.
	(remove_breakpoint) Do not remove the valchain.
	(bpstat_stop_status) If not stopped by watchpoint, skip
	watchpoints when generating stop status list.
	* infrun.c: (handle_inferior_event) Make
	stepped_after_stopped_by_watchpoint a global variable.
	* remote.c: (remote_stopped_data_address) Return watch data
	address rather than zero if stepped_after_stopped_by_watchpoint is
	set.


  paul