Function rustc_typeck::check::wfcheck::receiver_is_implemented

pub(in check::wfcheck) fn receiver_is_implemented<'tcx>(
    fcx: &FnCtxt<'_, 'tcx>, 
    receiver_trait_def_id: DefId, 
    cause: ObligationCause<'tcx>, 
    receiver_ty: Ty<'tcx>
) -> bool