{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"assert_eq!(extern_opt.crate_name,"}]}
    assert_eq!(extern_opt.crate_name, "foo");
    let extern_opt = split_extern_opt(&early_dcx, unstable_opts, "foo").unwrap();
    assert_eq!(extern_opt.path, None);