net: ensure that unix sockets have both split and into_split (#2687)

The documentation build failed with errors such as

error: `[read]` public documentation for `take` links to a private item
    --> tokio/src/io/util/async_read_ext.rs:1078:9
     |
1078 | /         /// Creates an adaptor which reads at most `limit` bytes from it.
1079 | |         ///
1080 | |         /// This function returns a new instance of `AsyncRead` which will read
1081 | |         /// at most `limit` bytes, after which it will always return EOF
...    |
1103 | |         /// }
1104 | |         /// ```
     | |_______________^
     |
note: the lint level is defined here
    --> tokio/src/lib.rs:13:9
     |
13   | #![deny(intra_doc_link_resolution_failure)]
     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     = note: the link appears in this line:

             bytes read and future calls to [`read()`][read] may succeed.

1 files changed, 3 insertions, 3 deletions

diff --git a/tokio/src/net/tcp/split.rs b/tokio/src/net/tcp/split.rs
index 469056ac..0c1e359f 100644
--- a/tokio/src/net/tcp/split.rs
+++ b/tokio/src/net/tcp/split.rs
@@ -19,7 +19,7 @@ use std::net::Shutdown;
 use std::pin::Pin;
 use std::task::{Context, Poll};
 
-/// Read half of a [`TcpStream`], created by [`split`].
+/// Borrowed read half of a [`TcpStream`], created by [`split`].
 ///
 /// Reading from a `ReadHalf` is usually done using the convenience methods found on the
 /// [`AsyncReadExt`] trait. Examples import this trait through [the prelude].
@@ -31,12 +31,12 @@ use std::task::{Context, Poll};
 #[derive(Debug)]
 pub struct ReadHalf<'a>(&'a TcpStream);
 
-/// Write half of a [`TcpStream`], created by [`split`].
+/// Borrowed write half of a [`TcpStream`], created by [`split`].
 ///
 /// Note that in the [`AsyncWrite`] implemenation of this type, [`poll_shutdown`] will
 /// shut down the TCP stream in the write direction.
 ///
-/// Writing to an `OwnedWriteHalf` is usually done using the convenience methods found
+/// Writing to an `WriteHalf` is usually done using the convenience methods found
 /// on the [`AsyncWriteExt`] trait. Examples import this trait through [the prelude].
 ///
 /// [`TcpStream`]: TcpStream