{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"for"}]}
    for (trait_id, name) in file_ids.into_iter().flat_map(|file_id| {
    let (db, file_ids) = TestDB::with_many_files(ra_fixture);
        let module_id = db.module_for_file(file_id.file_id(&db));