Sub-Tasks:

• SR-10348 Parity: TimeZone.local
• SR-10359 Parity: FileManager: File display names.
• SR-10349 Parity: TimeZone.timeZoneDataVersion
• SR-10350 Parity: NSMeasurement
• SR-10351 Parity: NSCoding: ByteCountFormatter
• SR-10352 Parity: DateComponentsFormatter
• SR-10353 Parity: NumberFormatter.objectValue(_:range:)
• SR-10354 Parity: DateFormatter.objectValue(_:range:)
• SR-10355 Parity: NSCoding: DateIntervalFormatter
• SR-10356 Parity: NSCoding: ISO8601DateFormatter
• SR-10357 Parity: MeasurementFormatter
• SR-10358 Parity: FileManager.getRelationship(…)
• SR-10360 Parity: Bundle.allBundles
• SR-10361 Parity: Bundle.init(for: AnyClass)
• SR-10362 Parity: Bundle.classNamed(_:)
• SR-10363 Parity: NSCoding: FileHandle
• SR-10364 Parity: NSPathUtilities: NSString.fileSystemRepresentation
• SR-10365 Parity: NSURL: Resource values
• SR-10366 Parity: Network: HTTPCookieStorage.sortedCookies(using:)
• SR-10367 Parity: Consider Port & PortMessage
• SR-10368 Parity: Port, PortMessage and SocketPort
• SR-10369 Parity: Stream: Run loop scheduling
• SR-10370 Parity: InputStream.getBuffer(…)
• SR-10371 Parity: NSCoding: URLAuthenticationChallenge
• SR-10372 Parity: Networking: URLAuthenticationChallenge
• SR-10373 Parity: Networking: CachedURLResponse
• SR-10375 Parity: Networking: URLCredential & URLCredentialStorage
• SR-10376 Parity: Networking: URLProtectionSpace
• SR-10377 Parity: Networking: URLProtocol
• SR-10378 Parity: Networking: URLSession.invalidateAndCancel()
• SR-10379 Parity: Networking: URLSession.reset(…)/.flush(…)
• SR-10380 Parity: Networking: URLUploadTask and URLDownloadTask
• SR-10381 Parity: URLSessionTask.countOfBytes…
• SR-10382 Parity: URLSessionTask.earliestBeginDate
• SR-10383 Parity: URLSessionTask.progress
• SR-10384 Parity: URLSessionTask: Cache and authentication callbacks
• SR-10385 Parity: URLSessionStreamTask
• SR-10386 Parity: NSString.enumerateSubstrings(…)
• SR-10374 Parity: Networking: URLCache
• SR-10387 Parity: NSCoding: NSAttributedString
• SR-10388 Parity: NSCoding: NSTextCheckingResult
• SR-10389 Parity: Scanner: Hexadecimal floating point scanning
• SR-10390 Parity: Scanner.localizedScannerWithString(_:)
• SR-10391 Parity: NSArray.sortedArray(…)
• SR-10392 Parity: NSArray.exchangeObject(at:…)/.replaceObjects(in:…)
• SR-10393 Parity: NSArray: _CFSwiftArrayReplaceValues
• SR-10394 Parity: NSDictionary: _CFSwiftDictionaryContainsValue
• SR-10395 Parity: Consider non-keyed archiving
• SR-10396 Parity: NSDictionary: Non-keyed archiving marked as NSUnimplemented()
• SR-10397 Parity: NSDictionary: Shared key sets
• SR-10398 Parity: NSCoding: NSCharacterSet
• SR-10399 Parity: NSPredicate
• SR-10400 Parity: NSComparisonPredicate
• SR-10401 Parity: NSCoding: NSCompoundPredicate
• SR-10412 Parity: NSSortDescriptor
• SR-10402 Parity: NSExpression
• SR-10403 Parity: NSCoding: NSIndexSet
• SR-10404 Parity: NSCoding: NSOrderedSet
• SR-10405 Parity: NSOrderedSet.array
• SR-10406 Parity: NSOrderedSet.set
• SR-10407 Parity: NSOrderedSet.index(of:inSortedRange:…)
• SR-10408 Parity: NSOrderedSet.description…
• SR-10409 Parity: NSOrderedSet: NSCopying
• SR-10410 Parity: NSSet: Custom mirror
• SR-10411 Parity: NSCoding: NSSet
• SR-10413 Parity: NSCoder: Top-level object encoding/decoding
• SR-10414 Parity: NSCoder: Property list object encoding/decoding
• SR-10415 Parity: NSCoder.failWithError(_:)
• SR-10416 Parity: NSKeyedArchiver: Consider response to setting an output format other than .xml or .binary
• SR-10417 Parity: NSKeyedArchiver: Secure initializers
• SR-10418 Parity: NSKeyedUnarchiver.decodingFailurePolicy
• SR-10419 Parity: XMLDocument.init()
• SR-10420 Parity: NSCoding: XMLDocument
• SR-10421 Parity: XMLDocument.object(byApplyingXSLT…)
• SR-10422 Parity: XMLDTD.init()
• SR-10423 Parity: XMLElement.attribute(forLocalPair…)
• SR-10424 Parity: XMLElement: XML Namespaces
• SR-10425 Parity: XMLElement.normalizeAdjacentTextNodes…
• SR-10426 Parity: NSIntegralRectWithOptions options
• SR-10427 Parity: FileManager.replaceItem(…)
• SR-10428 Parity: URLSession.getAllTasks…/.getTasksWith…
• SR-10448 Parity: NSArray: Custom mirror
• SR-10449 Parity: NSDictionary: Custom mirror
• SR-10455 Parity: NSCoding: NSStringFromClass(:)/NSClassFromString(:) should match ObjC APINotes
• SR-10960 Parity: URLSessionConfiguration.background(withIdentifier:)

is duplicated by:

• SR-6394 fatal error: X is not yet implemented: file Foundation/~~~, line ##

Issue Description:

NSUnimplemented() indicates a portion of swift-corelibs-foundation yet to be implemented. We should audit and implement all remaining elements.