Fix re-export of doc hidden macro not showing up

Author: GuillaumeGomez

src/librustdoc/clean/mod.rs

@@ -2592,7 +2592,8 @@ fn clean_use_statement_inner<'tcx>(
     } else {
         if inline_attr.is_none()
             && let Res::Def(DefKind::Mod, did) = path.res
-            && !did.is_local() && did.is_crate_root()
+            && !did.is_local()
+            && did.is_crate_root()
         {
             // if we're `pub use`ing an extern crate root, don't inline it unless we
             // were specifically asked for it

src/librustdoc/visit_ast.rs

@@ -310,6 +310,16 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> {
         }
 
         let ret = match tcx.hir().get_by_def_id(res_did) {
+            // Bang macros are handled a bit on their because of how they are handled by the
+            // compiler. If they have `#[doc(hidden)]` and the re-export doesn't have
+            // `#[doc(inline)]`, then we don't inline it.
+            Node::Item(&hir::Item { kind: hir::ItemKind::Macro(_, MacroKind::Bang), .. })
+                if !please_inline
+                    && renamed.is_some()
+                    && self.cx.tcx.is_doc_hidden(ori_res_did) =>
+            {
+                return false;
+            }
             Node::Item(&hir::Item { kind: hir::ItemKind::Mod(ref m), .. }) if glob => {
                 let prev = mem::replace(&mut self.inlining, true);
                 for &i in m.item_ids {