* lib/gdb.exp(default_gdb_exit): Don't give an error if the remote

	* lib/gdb.exp(default_gdb_exit): Don't give an error if the remote
	host doesn't have a currently-open connection.

	* config/sparclet.exp: Cleanups and fixes to make it generic for
 	any gdb stub target. Handle cases where gdb doesn't respond when
 	interrupted in a sane fashion.

	* config/m32r.exp: Load sparclet.exp instead of trying to do the
 	same thing in a totally different way.

	* config/monitor.exp: Pass in timeouts to gdb_expect instead of
 	setting "timeout".
	(gdb_start): We set the global gdb_prompt variable in
 	default_gdb_init now.