* breakpoint.h (struct breakpoint_ops): New.

	* breakpoint.h (struct breakpoint_ops): New.
	(struct breakpoint): Add ops member.

	* breakpoint.c (print_bp_stop_message, print_one_breakpoint)
	(mention): Use new breakpoint ops member.
	(set_raw_breakpoint): Initialize ops field to NULL.
	(print_exception_catchpoint, print_one_exception_catchpoint)
	(print_mention_exception_catchpoint, handle_gnu_v3_exceptions): New.
	(gnu_v3_exception_catchpoint_ops): New.
	(catch_exception_command_1): Call handle_gnu_v3_exceptions.