* cygthread.cc (cygthread::terminate_thread): In debugging output, use name of

* cygthread.cc (cygthread::terminate_thread): In debugging output, use name of
thread being terminated rather than thread doing terminating.
* fhandler.h (fhandler_pty_master::slave): Delete.
(fhandler_pty_master::get_unit): Ditto.
(fhandler_pty_master::setup): Change argument declaration to accommodate new
usage.
* fhandler_tty.cc (fhandler_tty_master::init): Remove obsolete slave
assignment.  Pass argument to setup indicating that this is a tty.
(fhandler_tty_slave::open): Use dev() method rather than referencing pc.dev
directly.
(fhandler_pty_master::open): Don't create archetype based on ptym device
number.  Set device number to use DEV_TTYM_MAJOR and tty number.  Pass argument
to setup indicating that this is a pty.
(fhandler_pty_master::setup): Change single argument to a flag indicating
whether we're creating a pty and use appropriately.  Calculate 't' variable
here rather than in caller.
* fhandler_dsp.cc (fhandler_dev_dsp::open): Use dev() method rather than
referencing pc.dev directly.