{"ast_node_type":"other","tokens":[{"end":103,"kind":"keyword","start":0,"text":"//"}]}
        // In some situations def_id will have generic parameters within scope, but they aren't allowed
    pub fn const_eval_poly_to_alloc(self, def_id: DefId) -> EvalToAllocationRawResult<'tcx> {
        // to be used. So we can't use `Instance::mono`, instead we feed unresolved generic parameters