w32: Fix the semantics of sending FD, it's Windows HANDLE.
* src/assuan-handler.c (w32_handler_sendfd): It's Windows HANDLE. * src/system-w32.c (get_file_handle, w32_fdpass_send): Likewise. * tests/fdpassing.c (cmd_echo): Received FD is Windows HANDLE. (client): Use Windows HANDLE for assuan_sendfd.
- GnuPG-bug-id: T6236
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>