override fun buildClassType(builder: KtClassTypeBuilder): KtClassType {
        val descriptor: ClassDescriptor? = when (builder) {
            is KtClassTypeBuilder.ByClassId -> {
                val fqName = builder.classId.asSingleFqName()
                analysisContext.resolveSession
                    .getTopLevelClassifierDescriptors(fqName, NoLookupLocation.FROM_IDE)
                    .firstIsInstanceOrNull()
            }