{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"//"}]}
        // `path` is a file, but r-a only cares about the containing directory. We don't
    fn classify(&self, path: &VfsPath, scratch_space: &mut Vec<u8>) -> usize {
        // want `/foo/bar_baz.rs` to be attributed to source root directory `/foo/bar`.