firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.FUN_INTERFACE_WRONG_COUNT_OF_ABSTRACT_MEMBERS) { firDiagnostic ->
        FunInterfaceWrongCountOfAbstractMembersImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.FUN_INTERFACE_CANNOT_HAVE_ABSTRACT_PROPERTIES) { firDiagnostic ->

    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtExpression>(firDiagnostic, token), KtFirDiagnostic.FunInterfaceConstructorReference

internal class FunInterfaceWrongCountOfAbstractMembersImpl(
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtClass>(firDiagnostic, token), KtFirDiagnostic.FunInterfaceWrongCountOfAbstractMembers