* breakpoint.h (enum bptype): New enum bp_catchpoint.

    * breakpoint.h (enum bptype): New enum bp_catchpoint.
        Delete bp_catch_fork and bp_catch_vfork.
        (struct breakpoint_ops): Add new methods "insert", "remove"
        and "breakpoint_hit".
        * breakpoint.c (create_fork_vfork_event_catchpoint)
        (create_fork_event_catchpoint, create_vfork_event_catchpoint): Remove.
        (insert_catchpoint): Remove handling of bp_catch_fork and
        bp_catch_vfork catchpoints, and handle them as bp_catchpoint
        catchpoints instead.
        (insert_bp_location, update_breakpoints_after_exec)
        (remove_breakpoint, bpstat_check_location, bpstat_what)
        (allocate_bp_location): Likewise.
        (print_it_typical, print_one_breakpoint_location, mention): Remove
        handling of bp_catch_fork and bp_catch_vfork breakpoints.
        (ep_is_catchpoint, user_settable_breakpoint)
        (breakpoint_address_is_meaningful, adjust_breakpoint_address)
        (breakpoint_re_set_one, disable_command, enable_command):
        Remove use of bp_catch_fork and bp_catch_vfork.  Add handling of
        bp_catchpoint breakpoints.
        (insert_catch_fork, remove_catch_fork, breakpoint_hit_catch_fork)
        (print_it_catch_fork, print_one_catch_fork, print_mention_catch_fork):
        New functions.
        (catch_fork_breakpoint_ops): New static constant.
        (insert_catch_vfork, remove_catch_vfork, breakpoint_hit_catch_vfork)
        (print_it_catch_vfork, print_one_catch_vfork)
        (print_mention_catch_vfork): New functions.
        (catch_vfork_breakpoint_ops): New static constant.
        (create_catchpoint, create_fork_vfork_event_catchpoint): New functions.
        (catch_fork_command_1): Use create_fork_vfork_event_catchpoint
        to create the fork and vfork catchpoints.
        (gnu_v3_exception_catchpoint_ops): Set new breakpoint_ops fields.
        * ada-lang.c (catch_exception_breakpoint_ops): Set new breakpoint_ops
        fields.
        (catch_exception_unhandled_breakpoint_ops): Likewise.
        (catch_assert_breakpoint_ops): Likewise.