{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"Some(AmpMutSugg"}]}
        Some(AmpMutSugg { has_sugg: true, span, suggestion: "mut ".to_owned(), additional: None })
        let span = span.with_lo(span.lo() + BytePos(1)).shrink_to_lo();
    } else {