fix(rustdoc): print the doc(hidden) attribute the same as others

Closes rust-lang#132304

src/librustdoc/clean/types.rs

@@ -760,6 +760,11 @@ impl Item {
                 }
             })
             .collect();
+
+        if !keep_as_is && self.is_doc_hidden() {
+            attrs.push("#[doc(hidden)]".into());
+        }
+
         if !keep_as_is
             && let Some(def_id) = self.def_id()
             && let ItemType::Struct | ItemType::Enum | ItemType::Union = self.type_()
@@ -822,6 +827,7 @@ impl Item {
                 attrs.push(format!("#[repr({})]", out.join(", ")));
             }
         }
+
         attrs
     }
 

src/librustdoc/html/format.rs

@@ -1610,14 +1610,7 @@ pub(crate) fn visibility_print_with_space<'a, 'tcx: 'a>(
         }
     };
 
-    let is_doc_hidden = item.is_doc_hidden();
-    display_fn(move |f| {
-        if is_doc_hidden {
-            f.write_str("#[doc(hidden)] ")?;
-        }
-
-        f.write_str(&vis)
-    })
+    display_fn(move |f| f.write_str(&vis))
 }
 
 pub(crate) trait PrintWithSpace {