internal class NoThisImpl(
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.NoThis

internal class DeprecationErrorImpl(
    override val reference: KtSymbol,
    override val message: String,
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,

            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.IMPLICIT_NOTHING_RETURN_TYPE) { firDiagnostic ->
        ImplicitNothingReturnTypeImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.IMPLICIT_NOTHING_PROPERTY_TYPE) { firDiagnostic ->
        ImplicitNothingPropertyTypeImpl(
            firDiagnostic as KtPsiDiagnostic,

    }

    interface MissingStdlibClass : KtFirDiagnostic<PsiElement> {
        override val diagnosticClass get() = MissingStdlibClass::class
    }

    interface NoThis : KtFirDiagnostic<PsiElement> {
        override val diagnosticClass get() = NoThis::class
    }

    interface DeprecationError : KtFirDiagnostic<PsiElement> {
        override val diagnosticClass get() = DeprecationError::class