io: Rename `ReadBuf` methods (#2945)

This changes `ReadBuf::add_filled` to `ReadBuf::advance` and
`ReadBuf::append` to `ReadBuf::put_slice`. This is just a
mechanical change.

Closes #2769

3 files changed, 3 insertions, 3 deletions

diff --git a/tokio/tests/io_copy.rs b/tokio/tests/io_copy.rs
index aed6c789..9ed7995c 100644
--- a/tokio/tests/io_copy.rs
+++ b/tokio/tests/io_copy.rs
@@ -18,7 +18,7 @@ async fn copy() {
             buf: &mut ReadBuf<'_>,
         ) -> Poll<io::Result<()>> {
             if self.0 {
-                buf.append(b"hello world");
+                buf.put_slice(b"hello world");
                 self.0 = false;
                 Poll::Ready(Ok(()))
             } else {
diff --git a/tokio/tests/io_read.rs b/tokio/tests/io_read.rs
index 0a717cf5..29d7d6d7 100644
--- a/tokio/tests/io_read.rs
+++ b/tokio/tests/io_read.rs
@@ -24,7 +24,7 @@ async fn read() {
             assert_eq!(0, self.poll_cnt);
             self.poll_cnt += 1;
 
-            buf.append(b"hello world");
+            buf.put_slice(b"hello world");
             Poll::Ready(Ok(()))
         }
     }
diff --git a/tokio/tests/io_split.rs b/tokio/tests/io_split.rs
index 7b401424..db168e9f 100644
--- a/tokio/tests/io_split.rs
+++ b/tokio/tests/io_split.rs
@@ -15,7 +15,7 @@ impl AsyncRead for RW {
         _cx: &mut Context<'_>,
         buf: &mut ReadBuf<'_>,
     ) -> Poll<io::Result<()>> {
-        buf.append(&[b'z']);
+        buf.put_slice(&[b'z']);
         Poll::Ready(Ok(()))
     }
 }