{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//"}]}
            // To simplify deserialization, we 'rebase' this span onto the crate it originally came
        let (kind, metadata_index) = if source_file.is_imported() && !s.is_proc_macro {
            // from (the crate that 'owns' the file it references. These rebased 'lo' and 'hi'