import org.jetbrains.kotlin.fir.FirSession
import org.jetbrains.kotlin.fir.backend.jvm.FirJvmSerializerExtension
import org.jetbrains.kotlin.fir.backend.jvm.FirJvmSerializerExtension.Companion.FIELD_FOR_PROPERTY
import org.jetbrains.kotlin.fir.backend.jvm.FirJvmSerializerExtension.Companion.METHOD_FOR_FIR_FUNCTION
import org.jetbrains.kotlin.fir.declarations.*
import org.jetbrains.kotlin.fir.declarations.utils.classId

        sequence {
            analysisSession.useSitePackageProvider.getSubPackageFqNames(fqName, analysisSession.targetPlatform, nameFilter).forEach {
                yield(analysisSession.firSymbolBuilder.createPackageSymbol(fqName.child(it)))
            }
        }
    }

            // Destructuring declarations use their initializer.
            is KtDestructuringDeclaration ->
                parent.initializer == child

            // Backing field declarations use their initializer.
            is KtBackingField ->
                parent.initializer == child

            // Property accessors can use their bodies if not blocks.
            is KtPropertyAccessor ->