{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"if"}]}
                            if matches!(mode, ImplTraitReplacingMode::TypeAlias) {
                        ImplTraitId::ReturnTypeImplTrait(def, idx) => {
                                // RPITs don't have `tait_coercion_table`, so use inserted inference