{"ast_node_type":"variable","tokens":[{"end":61,"kind":"keyword","start":0,"text":"let"}]}
    let (db, file_ids) = TestDB::with_many_files(ra_fixture);
        expected.into_iter().map(|(id, osvs)| (id, FxHashSet::from_iter(osvs))).collect();
    for (trait_id, name) in file_ids.into_iter().flat_map(|file_id| {