refactor: use pprust explicitly

implicit pprust dependencies were removed and now require explicit usage
rust-lang/rust#65363

rustfmt-core/rustfmt-lib/src/macros.rs

@@ -143,7 +143,7 @@ fn rewrite_macro_name(
         // Avoid using pretty-printer in the common case.
         format!("{}!", rewrite_ident(context, path.segments[0].ident))
     } else {
-        format!("{}!", path)
+        format!("{}!", pprust::path_to_string(path))
     };
     match extra_ident {
         Some(ident) if ident.name != kw::Invalid => format!("{} {}", name, ident),
@@ -1190,7 +1190,8 @@ pub(crate) fn convert_try_mac(mac: &ast::Mac, context: &RewriteContext<'_>) -> O
     // `r#try!` must be used in the 2018 Edition.
     // https://doc.rust-lang.org/std/macro.try.html
     // https://github.com/rust-lang/rust/pull/62672
-    if &mac.path.to_string() == "try" || &mac.path.to_string() == "r#try" {
+    let path = &pprust::path_to_string(&mac.path);
+    if path == "try" || path == "r#try" {
         let ts: TokenStream = mac.tts.clone();
         let mut parser = new_parser_from_tts(context.parse_sess.inner(), ts.trees().collect());
 

rustfmt-core/rustfmt-lib/src/spanned.rs

@@ -29,12 +29,7 @@ macro_rules! span_with_attrs_lo_hi {
         if attrs.is_empty() {
             mk_sp($lo, $hi)
         } else {
-            // this path is already gone at latest rust-ap-* 627.0.0
-            if attrs[0].item.path.to_string() == "warn_directory_ownership" {
-                mk_sp($lo, $hi)
-            } else {
-                mk_sp(attrs[0].span.lo(), $hi)
-            }
+            mk_sp(attrs[0].span.lo(), $hi)
         }
     }};
 }

rustfmt-core/rustfmt-lib/src/utils.rs

@@ -6,7 +6,7 @@ use syntax::ast::{
     self, Attribute, CrateSugar, MetaItem, MetaItemKind, NestedMetaItem, NodeId, Path, Visibility,
     VisibilityKind,
 };
-use syntax::ptr;
+use syntax::{ptr, print::pprust};
 use unicode_width::UnicodeWidthStr;
 
 use crate::comment::{filter_normal_code, CharClasses, FullCodeCharKind, LineClasses};
@@ -42,7 +42,7 @@ pub(crate) fn is_same_visibility(a: &Visibility, b: &Visibility) -> bool {
         (
             VisibilityKind::Restricted { path: p, .. },
             VisibilityKind::Restricted { path: q, .. },
-        ) => p.to_string() == q.to_string(),
+        ) => pprust::path_to_string(p) == pprust::path_to_string(q),
         (VisibilityKind::Public, VisibilityKind::Public)
         | (VisibilityKind::Inherited, VisibilityKind::Inherited)
         | (
@@ -241,7 +241,7 @@ pub(crate) fn last_line_extendable(s: &str) -> bool {
 fn is_skip(meta_item: &MetaItem) -> bool {
     match meta_item.kind {
         MetaItemKind::Word => {
-            let path_str = meta_item.path.to_string();
+            let path_str = pprust::path_to_string(&meta_item.path);
             path_str == skip_annotation().as_str() || path_str == depr_skip_annotation().as_str()
         }
         MetaItemKind::List(ref l) => {