Auto merge of #100640 - reitermarkus:socket-display-buffer, r=thomcc

Use `DisplayBuffer` for socket addresses.

Continuation of https://github.com/rust-lang/rust/pull/100625 for socket addresses.

Renames `net::addr` to `net::addr::socket`, `net::ip` to `net::addr::ip` and `net::ip::display_buffer::IpDisplayBuffer` to `net::addr::display_buffer::DisplayBuffer`.

compiler/rustc_span/src/symbol.rs

@@ -214,6 +214,7 @@ symbols! {
         IntoIterator,
         IoRead,
         IoWrite,
+        IpAddr,
         IrTyKind,
         Is,
         ItemContext,