{"ast_node_type":"variable","tokens":[{"end":89,"kind":"keyword","start":0,"text":"let"}]}
        let add_semicolon = match &parser.psess.source_map().span_to_snippet(semi_span) {
        let semi_span = parser.psess.source_map().next_point(span);
            Ok(snippet) if &snippet[..] != ";" && kind_name == "expression" => {