Fix bug where private item with intermediate doc hidden re-export was not inlined

Author: GuillaumeGomez

src/librustdoc/clean/mod.rs

@@ -2180,7 +2180,8 @@ fn get_all_import_attributes<'hir>(
             // This is the "original" reexport so we get all its attributes without filtering them.
             attrs = import_attrs.iter().map(|attr| (Cow::Borrowed(attr), Some(def_id))).collect();
             first = false;
-        } else {
+        // We don't add attributes of an intermediate re-export if it has `#[doc(hidden)]`.
+        } else if !cx.tcx.is_doc_hidden(def_id) {
             add_without_unwanted_attributes(&mut attrs, import_attrs, is_inline, Some(def_id));
         }
     }

src/librustdoc/visit_ast.rs

@@ -246,7 +246,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
         glob: bool,
         please_inline: bool,
     ) -> bool {
-        debug!("maybe_inline_local res: {:?}", res);
+        debug!("maybe_inline_local (renamed: {renamed:?}) res: {res:?}");
 
         if renamed == Some(kw::Underscore) {
             // We never inline `_` reexports.
@@ -308,6 +308,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
                     .cache
                     .effective_visibilities
                     .is_directly_public(tcx, item_def_id.to_def_id()) &&
+                !tcx.is_doc_hidden(item_def_id) &&
                 !inherits_doc_hidden(tcx, item_def_id, None)
             {
                 // The imported item is public and not `doc(hidden)` so no need to inline it.