Auto merge of #72927 - petrochenkov:rustc, r=Mark-Simulacrum

Rename all remaining compiler crates to use the `rustc_foo` pattern

libarena -> librustc_arena
libfmt_macros -> librustc_parse_format
libgraphviz -> librustc_graphviz
libserialize -> librustc_serialize

Closes rust-lang/rust#71177 in particular.

clippy_lints/src/lib.rs

@@ -16,8 +16,6 @@
 // FIXME: switch to something more ergonomic here, once available.
 // (Currently there is no way to opt into sysroot crates without `extern crate`.)
 #[allow(unused_extern_crates)]
-extern crate fmt_macros;
-#[allow(unused_extern_crates)]
 extern crate rustc_ast;
 #[allow(unused_extern_crates)]
 extern crate rustc_ast_pretty;
@@ -48,6 +46,8 @@ extern crate rustc_mir;
 #[allow(unused_extern_crates)]
 extern crate rustc_parse;
 #[allow(unused_extern_crates)]
+extern crate rustc_parse_format;
+#[allow(unused_extern_crates)]
 extern crate rustc_session;
 #[allow(unused_extern_crates)]
 extern crate rustc_span;

clippy_lints/src/write.rs

@@ -352,7 +352,7 @@ impl Write {
         tts: &TokenStream,
         is_write: bool,
     ) -> (Option<StrLit>, Option<Expr>) {
-        use fmt_macros::{
+        use rustc_parse_format::{
             AlignUnknown, ArgumentImplicitlyIs, ArgumentIs, ArgumentNamed, CountImplied, FormatSpec, ParseMode, Parser,
             Piece,
         };