{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"span_bug!(tcx.def_span(*var),"}]}
            span_bug!(tcx.def_span(*var), "expected bound-var def-id to resolve to param");
        let Node::GenericParam(param) = tcx.hir_node_by_def_id(*var) else {
        };