{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"sema.hir_file_for(&expanded).macro_file().expect(\"expansion"}]}
        sema.hir_file_for(&expanded).macro_file().expect("expansion must produce a macro file");
    let file_id =
    let expansion_span_map = sema.db.expansion_span_map(file_id);