Change use of BOOL, TRUE, FALSE to bool, true, false, as appropriate,

throughout.
* tty.cc (tty::common_init): Remove call to SetKernelObjectSecurity and edit
some comments.
* cygheap.h (init_cygheap::ctty): Add new element.
* devices.in (device::parse): Remove special handling for /dev/tty.
* devices.cc: Regenerate.
* dtable.cc (build_fh_pc): Don't reset /dev/tty device.  Let the device opener
do that.
* fhandler_termios.cc (tty_min::set_ctty): Redefine to _pinfo class.
* fhandler_tty.cc (fhandler_tty_common::set_close_on_exec): Avoid setting
noninherit flag for ctty.
* tty.h: Move BOOLs to bools.
(tty_min::set_ctty): Redeclare to _pinfo class.
* pinfo.cc (_pinfo::set_ctty): Define new function based on tty_min::set_ctty.
Change first argument from tty number to tty_min class.
* pinfo.h (_pinfo::set_ctty): Declare.
* fhandler_console.cc (fhandler_console::get_tty_stuff): Reflect move of
set_ctty to _pinfo class.
* fhandler_tty.cc (fhandler_tty_slave::open): Treat FH_TTY specially.  Use
saved cygheap value if it exists.  Otherwise convert to real device and save on
first time open.
(fhandler_tty_common::dup): Potentially set controlling tty if duping a slave
tty.
* syscalls.cc (setsid): Close controlling tty in cygheap.
* tty.cc: Change some BOOLs to bools.

winsup/cygwin/cygheap.h

@@ -125,7 +125,7 @@ public:
      since this class is always allocated statically.  That means that everything
      is zero anyway so there is no need to initialize it to zero.  Since the
      token initialization is always handled during process startup as well,
-     I've removed the constructor entirely.  Please reinstate this f this
+     I've removed the constructor entirely.  Please reinstate this if this
      situation ever changes.
   cygheap_user () : pname (NULL), plogsrv (NULL), pdomain (NULL),
 		    homedrive (NULL), homepath (NULL),
@@ -259,6 +259,8 @@ struct init_cygheap
   cygheap_debug debug;
 #endif
   struct sigaction *sigs;
+
+  fhandler_tty_slave ctty;	/* Current tty */
 };
 
 #define CYGHEAPSIZE (sizeof (init_cygheap) + (20000 * sizeof (fhandler_union)) + (5 * 65536))