Function resolve_associated_item

fn resolve_associated_item<'tcx>(
    tcx: TyCtxt<'tcx>,
    trait_item_id: DefId,
    param_env: ParamEnv<'tcx>,
    trait_id: DefId,
    rcvr_args: GenericArgsRef<'tcx>,
) -> Result<Option<Instance<'tcx>>, ErrorGuaranteed>