firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.SEALED_SUPERTYPE) { firDiagnostic ->
        SealedSupertypeImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.SEALED_SUPERTYPE_IN_LOCAL_CLASS) { firDiagnostic ->
        SealedSupertypeInLocalClassImpl(
            firDiagnostic.a,

import org.jetbrains.kotlin.serialization.deserialization.IncompatibleVersionErrorData
import org.jetbrains.kotlin.types.Variance

/*
 * This file was generated automatically
 * DO NOT MODIFY IT MANUALLY
 */

sealed interface KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
    interface Unsupported : KtFirDiagnostic<PsiElement> {
        override val diagnosticClass get() = Unsupported::class
        val unsupported: String