Function rustc_trait_selection::traits::project::confirm_impl_trait_in_trait_candidate

fn confirm_impl_trait_in_trait_candidate<'tcx>(
    selcx: &mut SelectionContext<'_, 'tcx>,
    obligation: &Obligation<'tcx, ProjectionTy<'tcx>>,
    data: ImplSourceUserDefinedData<'tcx, PredicateObligation<'tcx>>
) -> Progress<'tcx>