Update src/librustdoc/html/render/search_index.rs

Co-authored-by: Guillaume Gomez <[email protected]>

Author: lolbinarycat

src/librustdoc/html/render/search_index.rs

@@ -93,7 +93,7 @@ pub(crate) fn build_index(
                 ),
                 aliases: item.attrs.get_doc_aliases(),
                 deprecation: item.deprecation(tcx),
-                is_unstable: item.stability(tcx).map(|x| x.is_unstable()).unwrap_or(false),
+                is_unstable: item.stability(tcx).is_some_and(|x| x.is_unstable()),
             });
         }
     }