refactor: apply AST doc comment updates

Implements changes required post
rust-lang/rust#65750

Author: calebcartwright

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

@@ -167,7 +167,7 @@ fn rewrite_initial_doc_comments(
         return Some((0, None));
     }
     // Rewrite doc comments
-    let sugared_docs = take_while_with_pred(context, attrs, |a| a.is_sugared_doc);
+    let sugared_docs = take_while_with_pred(context, attrs, |a| a.is_doc_comment());
     if !sugared_docs.is_empty() {
         let snippet = sugared_docs
             .iter()
@@ -315,7 +315,7 @@ where
 impl Rewrite for ast::Attribute {
     fn rewrite(&self, context: &RewriteContext<'_>, shape: Shape) -> Option<String> {
         let snippet = context.snippet(self.span);
-        if self.is_sugared_doc {
+        if self.is_doc_comment() {
             rewrite_doc_comment(snippet, shape.comment(context.config), context.config)
         } else {
             let should_skip = self
@@ -437,7 +437,7 @@ impl<'a> Rewrite for [ast::Attribute] {
                     )?;
                     result.push_str(&comment);
                     if let Some(next) = attrs.get(derives.len()) {
-                        if next.is_sugared_doc {
+                        if next.is_doc_comment() {
                             let snippet = context.snippet(missing_span);
                             let (_, mlb) = has_newlines_before_after_comment(snippet);
                             result.push_str(&mlb);
@@ -470,7 +470,7 @@ impl<'a> Rewrite for [ast::Attribute] {
                 )?;
                 result.push_str(&comment);
                 if let Some(next) = attrs.get(1) {
-                    if next.is_sugared_doc {
+                    if next.is_doc_comment() {
                         let snippet = context.snippet(missing_span);
                         let (_, mlb) = has_newlines_before_after_comment(snippet);
                         result.push_str(&mlb);

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

@@ -248,7 +248,7 @@ impl UseTree {
 
                 let allow_extend = if attrs.len() == 1 {
                     let line_len = attr_str.len() + 1 + use_str.len();
-                    !attrs.first().unwrap().is_sugared_doc
+                    !attrs.first().unwrap().is_doc_comment()
                         && context.config.inline_attribute_width() >= line_len
                 } else {
                     false

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

@@ -3139,7 +3139,7 @@ fn rewrite_attrs(
 
     let allow_extend = if attrs.len() == 1 {
         let line_len = attrs_str.len() + 1 + item_str.len();
-        !attrs.first().unwrap().is_sugared_doc
+        !attrs.first().unwrap().is_doc_comment()
             && context.config.inline_attribute_width() >= line_len
     } else {
         false

rustfmt-core/rustfmt-lib/src/syntux/parser.rs

@@ -151,7 +151,11 @@ impl<'a> Parser<'a> {
                 }
                 TokenKind::DocComment(s) => {
                     // we need to get the position of this token before we bump.
-                    let attr = syntax::attr::mk_sugared_doc_attr(s, parser.token.span);
+                    let attr = syntax::attr::mk_doc_comment(
+                        syntax::util::comments::doc_comment_style(&s.as_str()),
+                        s,
+                        parser.token.span,
+                    );
                     if attr.style == ast::AttrStyle::Inner {
                         attrs.push(attr);
                         parser.bump();