Hurd: New RPC reply stub functions.

Hurd: New RPC reply stub functions.

	gdb/
	* gnu-nat.c (ill_rpc): Remove function; replaced with this...
	(ILL_RPC): ... new macro.
	(do_mach_notify_no_senders, do_mach_notify_port_deleted)
	(do_mach_notify_msg_accepted, do_mach_notify_port_destroyed)
	(do_mach_notify_send_once, S_proc_setmsgport_reply)
	(S_proc_getmsgport_reply, S_msg_sig_post_reply): Generate stub
	functions with ILL_RPC macro.
	(S_proc_pid2task_reply, S_proc_task2pid_reply)
	(S_proc_task2proc_reply, S_proc_proc2task_reply)
	(S_proc_pid2proc_reply, S_proc_getprocinfo_reply)
	(S_proc_getprocargs_reply, S_proc_getprocenv_reply)
	(S_proc_getloginid_reply, S_proc_getloginpids_reply)
	(S_proc_getlogin_reply, S_proc_getsid_reply)
	(S_proc_getsessionpgids_reply, S_proc_getsessionpids_reply)
	(S_proc_getsidport_reply, S_proc_getpgrp_reply)
	(S_proc_getpgrppids_reply, S_proc_get_tty_reply)
	(S_proc_getnports_reply, S_proc_is_important_reply)
	(S_proc_get_code_reply): New stub functions, generated with
	ILL_RPC macro.

Based on a patch by David Michael <fedora.dm0@gmail.com>.