{"ast_node_type":"variable","tokens":[{"end":56,"kind":"keyword","start":0,"text":"let"}]}
    let cgu_reuse = tcx.sess.time("find_cgu_reuse", || {
    // Calculate the CGU reuse
        codegen_units.iter().map(|cgu| determine_cgu_reuse(tcx, cgu)).collect::<Vec<_>>()