Fix serial port build on windows.

asio/include/asio/detail/win_iocp_serial_port_service.hpp

diff --git a/asio/include/asio/detail/win_iocp_serial_port_service.hpp b/asio/include/asio/detail/win_iocp_serial_port_service.hpp
index 8637143..8eed665 100644
--- a/asio/include/asio/detail/win_iocp_serial_port_service.hpp
+++ b/asio/include/asio/detail/win_iocp_serial_port_service.hpp
@@ -62,7 +62,7 @@
 
   // Move-assign from another serial port implementation.
   void move_assign(implementation_type& impl,
-      reactive_serial_port_service& other_service,
+      win_iocp_serial_port_service& other_service,
       implementation_type& other_impl)
   {
     handle_service_.move_assign(impl,