native: clone/close_accept for win32 pipes

This commits takes a similar strategy to the previous commit to implement
close_accept and clone for the native win32 pipes implementation.

Closes #15595

src/libstd/io/net/tcp.rs

@@ -461,8 +461,7 @@ impl TcpAcceptor {
     ///
     /// ```
     /// # #![allow(experimental)]
-    /// use std::io::TcpListener;
-    /// use std::io::{Listener, Acceptor, TimedOut};
+    /// use std::io::{TcpListener, Listener, Acceptor, EndOfFile};
     ///
     /// let mut a = TcpListener::bind("127.0.0.1", 8482).listen().unwrap();
     /// let a2 = a.clone();