firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtTypeAlias>(firDiagnostic, token), KtFirDiagnostic.ActualTypeAliasToNullableType

internal class ActualTypeAliasToNothingImpl(
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtTypeAlias>(firDiagnostic, token), KtFirDiagnostic.ActualTypeAliasToNothing

        ActualTypeAliasToNullableTypeImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.ACTUAL_TYPE_ALIAS_TO_NOTHING) { firDiagnostic ->
        ActualTypeAliasToNothingImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS) { firDiagnostic ->