token,
        )
    }
    add(FirErrors.INVISIBLE_REFERENCE) { firDiagnostic ->
        InvisibleReferenceImpl(
            firSymbolBuilder.buildSymbol(firDiagnostic.a),
            firDiagnostic.b,
            firDiagnostic.c,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.UNRESOLVED_REFERENCE) { firDiagnostic ->
        UnresolvedReferenceImpl(

        override val diagnosticClass get() = InvisibleReference::class
        val reference: KtSymbol
        val visible: Visibility
        val containingDeclaration: ClassId?
    }

    interface UnresolvedReference : KtFirDiagnostic<PsiElement> {
        override val diagnosticClass get() = UnresolvedReference::class
        val reference: String
        val operator: String?
    }

internal class InvisibleReferenceImpl(
    override val reference: KtSymbol,
    override val visible: Visibility,
    override val containingDeclaration: ClassId?,
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.InvisibleReference

internal class UnresolvedReferenceImpl(
    override val reference: String,
    override val operator: String?,