{"ast_node_type":"variable","tokens":[{"end":69,"kind":"keyword","start":0,"text":"let"}]}
    let tgt_bin_desc = cx.type_named_struct("struct.__tgt_bin_desc");
    let tgt_bin_desc_ty = vec![ti32, tptr, tptr, tptr];
    cx.set_struct_body(tgt_bin_desc, &tgt_bin_desc_ty, false);