when (this) {
        is SyntheticJavaPropertyDescriptor -> return KtSymbolOrigin.JAVA_SYNTHETIC_PROPERTY
        is SyntheticFieldDescriptor -> return KtSymbolOrigin.PROPERTY_BACKING_FIELD
        is SamConstructorDescriptor -> return KtSymbolOrigin.SAM_CONSTRUCTOR
        is JavaClassDescriptor, is JavaCallableMemberDescriptor -> return KtSymbolOrigin.JAVA

        }

    override val hasBackingField: Boolean
        get() = withValidityAssertion {
            val bindingContext = analysisContext.analyze(psi, AnalysisMode.PARTIAL)
            bindingContext[BindingContext.BACKING_FIELD_REQUIRED, descriptor] == true
        }

    override val isDelegatedProperty: Boolean
        get() = withValidityAssertion {
            psi.hasDelegate()
        }

 * not necessarily the case for declaration providers (e.g. the IDE declaration provider hitting the index without caching).
 *
 * However, since symbol names providers may not be able to compute name sets per their contract, we may have to fall back to the
 * [declaration provider][org.jetbrains.kotlin.analysis.providers.KotlinDeclarationProvider].

            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.BACKING_FIELD_IN_INTERFACE) { firDiagnostic ->
        BackingFieldInInterfaceImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.EXTENSION_PROPERTY_WITH_BACKING_FIELD) { firDiagnostic ->
        ExtensionPropertyWithBackingFieldImpl(

    override val hasBackingField: Boolean
        get() = withValidityAssertion {
            val bindingContext = analysisContext.resolveSession.bindingContext
            return bindingContext[BindingContext.BACKING_FIELD_REQUIRED, descriptor] == true
        }

    override val isDelegatedProperty: Boolean
        get() = withValidityAssertion { descriptor.isDelegated }

                    KtSimpleVariableAccess.Write(rhs)
                )
            }
            is FirPropertyAccessExpression, is FirCallableReferenceAccess -> {
                @Suppress("USELESS_IS_CHECK") // K2 warning suppression, TODO: KT-62472
                require(fir is FirQualifiedAccessExpression)
                when (unsubstitutedKtSignature.symbol) {
                    is KtVariableLikeSymbol -> {

            // library modules might still be valid. This is not a problem, though, because analysis session caching is not required for
            // correctness, but rather a performance optimization.
            analysisSessionProvider.clearCaches()
        }
    }
}