{"ast_node_type":"variable","tokens":[{"end":56,"kind":"keyword","start":0,"text":"if"}]}
                if let Some(variant_def) = variant_def {
                    .find(|vd| tcx.hygienic_eq(method_name, vd.ident(tcx), adt_def.did()));
                    if let Some((ctor_kind, ctor_def_id)) = variant_def.ctor {