Change foo (void) to foo () for all c++ functions throughout. Remove all

fhandler_*::dump functions throughout.
* fhandler.h (fhandler_dev_mem::close): Remove pass-through function in favor
of virtual method.
(handler_dev_raw::close): Ditto.
(fhandler_dev_clipboard::fixup_after_exec): New method.
* fhandler_dev_mem.cc (fhandler_dev_mem::close): Eliminate pass through
* fhandler_dev_raw.cc (fhandler_dev_raw::close): Ditto.
* fhandler_clipboard.cc (fhandler_dev_clipboard::close): Don't go to extra
effort when execing.
(fhandler_dev_clipboard::fixup_after_exec): New function.
* fhandler_console.cc (fhandler_console::close): Don't do "extra stuff" when we
know we're execing.
* fhandler_disk_file.cc (fhandler_disk_file::close): Ditto.
* fhandler_dsp.cc (fhandler_dev_dsp::close): Ditto.
* fhandler_fifo.cc (fhandler_fifo.cc::close): Ditto.  function in favor of base
function.
* fhandler_random.cc (fhandler_dev_random::close): Ditto.
* fhandler_registry.cc (fhandler_registry::close): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::close): Ditto.
* fhandler_virtual.cc (fhandler_virtual::close): Ditto.
* pinfo.cc (proc_waiter): Remove unneeded hExeced declaration.
* sigproc.cc: Ditto.
* winsup.h (hExeced): Define here.
* fhandler_virtual.cc (fhandler_virtual::fixup_after_exec): Just call close()
to reinitialize things to known state.

winsup/cygwin/thread.cc

@@ -354,14 +354,14 @@ MTinterface::Init ()
 }
 
 void
-MTinterface::fixup_before_fork (void)
+MTinterface::fixup_before_fork ()
 {
   pthread_key::fixup_before_fork ();
 }
 
 /* This function is called from a single threaded process */
 void
-MTinterface::fixup_after_fork (void)
+MTinterface::fixup_after_fork ()
 {
   pthread_key::fixup_after_fork ();
 
@@ -570,7 +570,7 @@ pthread::exit (void *value_ptr)
 }
 
 int
-pthread::cancel (void)
+pthread::cancel ()
 {
   class pthread *thread = this;
   class pthread *self = pthread::self ();
@@ -788,7 +788,7 @@ opengroup specs.
 }
 
 void
-pthread::testcancel (void)
+pthread::testcancel ()
 {
   if (cancelstate == PTHREAD_CANCEL_DISABLE)
     return;
@@ -798,7 +798,7 @@ pthread::testcancel (void)
 }
 
 void
-pthread::static_cancel_self (void)
+pthread::static_cancel_self ()
 {
   pthread::self ()->cancel_self ();
 }
@@ -2038,7 +2038,7 @@ pthread::cancel (pthread_t thread)
 }
 
 void
-pthread::atforkprepare (void)
+pthread::atforkprepare ()
 {
   callback *cb = MT_INTERFACE->pthread_prepare;
   while (cb)
@@ -2053,7 +2053,7 @@ pthread::atforkprepare (void)
 }
 
 void
-pthread::atforkparent (void)
+pthread::atforkparent ()
 {
   __fp_unlock_all ();
 
@@ -2066,7 +2066,7 @@ pthread::atforkparent (void)
 }
 
 void
-pthread::atforkchild (void)
+pthread::atforkchild ()
 {
   MT_INTERFACE->fixup_after_fork ();
 
@@ -2419,7 +2419,7 @@ pthread::resume (pthread_t *thread)
    See http://www.opengroup.org/onlinepubs/007908799/xsh/pthread_getconcurrency.html
 */
 extern "C" int
-pthread_getconcurrency (void)
+pthread_getconcurrency ()
 {
   return MT_INTERFACE->concurrency;
 }