use Item::name() in clean

Signed-off-by: longfangsong <longfangsong@icloud.com>

Author: longfangsong

src/librustdoc/clean/mod.rs

@@ -1938,9 +1938,10 @@ impl Clean<Vec<Item>> for doctree::Item<'_> {
     fn clean(&self, cx: &mut DocContext<'_>) -> Vec<Item> {
         use hir::ItemKind;
 
-        let (item, renamed) = (self.hir_item, self.renamed_name);
+        let item = self.hir_item;
+        let mut name = self.name().clone();
         let def_id = item.def_id.to_def_id();
-        let mut name = renamed.unwrap_or_else(|| cx.tcx.hir().name(item.hir_id()));
+
         cx.with_param_env(def_id, |cx| {
             let kind = match item.kind {
                 ItemKind::Static(ty, mutability, body_id) => {

src/librustdoc/doctree.rs

@@ -26,7 +26,7 @@ impl<'hir> Item<'hir> {
         Self { hir_item, renamed_name, from_glob }
     }
 
-    fn name(&'hir self) -> &'hir Symbol {
+    pub(crate) fn name(&'hir self) -> &'hir Symbol {
         self.renamed_name.as_ref().unwrap_or(&self.hir_item.ident.name)
     }
 }