{"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"if"}]}
                if let Some(prev_non_lifetime_param) = prev_non_lifetime_param {
            hir::PreciseCapturingArg::Lifetime(&hir::Lifetime { hir_id, ident, .. }) => {
                    tcx.dcx().emit_err(errors::LifetimesMustBeFirst {