{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"//"}]}
        // the HIR path alone without rerunning parts of HIR ty lowering here
        // items like type aliases, we can't simply deduce the corresp. trait from
        // (namely `probe_single_ty_param_bound_for_assoc_ty`) which is infeasible.