Revert "New value types for Calendar, TimeZone, and Locale"

This reverts commit 46a9f57.

This broke Swift CI, OSS incremental RA:

./swift/stdlib/public/SDK/Foundation/TimeZone.swift:228:45: error: 'NSTimeZone' is not implicitly convertible to 'TimeZone'; did you mean to use 'as' to explicitly convert?
        return lhs._wrapped.isEqual(to: rhs._wrapped)

Author: atrick

apinotes/Foundation.apinotes

@@ -647,15 +647,7 @@ Classes:
   - Selector: 'stringFromByteCount:'
     SwiftName: stringFromByteCount(_:)
     MethodKind: Instance
-- Name: NSLocale
-  SwiftName: NSLocale
-  SwiftBridge: Locale
-- Name: NSTimeZone
-  SwiftName: NSTimeZone
-  SwiftBridge: TimeZone
 - Name: NSCalendar
-  SwiftName: NSCalendar
-  SwiftBridge: Calendar
   Methods:
   - Selector: 'dateWithEra:year:month:day:hour:minute:second:nanosecond:'
     SwiftName: date(era:year:month:day:hour:minute:second:nanosecond:)
@@ -1122,9 +1114,9 @@ Tags:
 - Name: NSByteCountFormatterCountStyle
   SwiftName: ByteCountFormatter.CountStyle
 - Name: NSCalendarUnit
-  SwiftName: NSCalendar.Unit
+  SwiftName: Calendar.Unit
 - Name: NSCalendarOptions
-  SwiftName: NSCalendar.Options
+  SwiftName: Calendar.Options
 - Name: NSDecodingFailurePolicy
   SwiftName: NSCoder.DecodingFailurePolicy
 - Name: NSComparisonPredicateOptions
@@ -1237,7 +1229,7 @@ Tags:
   Availability: nonswift
   AvailabilityMsg: Use 'NSTextCheckingResult.CheckingType'
 - Name: NSTimeZoneNameStyle
-  SwiftName: NSTimeZone.NameStyle
+  SwiftName: TimeZone.NameStyle
 - Name: NSURLCacheStoragePolicy
   SwiftName: URLCache.StoragePolicy
 - Name: NSURLCredentialPersistence
@@ -1289,7 +1281,7 @@ Tags:
 - Name: NSDateComponentsFormatterZeroFormattingBehavior
   SwiftName: DateComponentsFormatter.ZeroFormattingBehavior
 - Name: NSLocaleLanguageDirection
-  SwiftName: NSLocale.LanguageDirection
+  SwiftName: Locale.LanguageDirection
 - Name: NSNetServiceOptions
   SwiftName: NSNetService.Options
 - Name: NSPointerFunctionsOptions
@@ -1356,13 +1348,13 @@ Typedefs:
 - Name: NSBackgroundActivityCompletionHandler
   SwiftName: NSBackgroundActivityScheduler.CompletionHandler
 - Name: NSCalendarIdentifier
-  SwiftName: NSCalendar.Identifier
+  SwiftName: Calendar.Identifier
 - Name: NSItemProviderCompletionHandler
   SwiftName: NSItemProvider.CompletionHandler
 - Name: NSItemProviderLoadHandler
   SwiftName: NSItemProvider.LoadHandler
 - Name: NSLocaleKey
-  SwiftName: NSLocale.Key
+  SwiftName: Locale.Key
 - Name: NSNotificationName
   SwiftName: NSNotification.Name
 - Name: NSProgressFileOperationKind
@@ -1431,7 +1423,7 @@ Globals:
 - Name: NSItemProviderErrorDomain
   SwiftName: NSItemProvider.errorDomain
 - Name: NSCurrentLocaleDidChangeNotification
-  SwiftName: NSLocale.currentLocaleDidChangeNotification
+  SwiftName: Locale.currentLocaleDidChangeNotification
 - Name: NSNetServicesErrorDomain
   SwiftName: NSNetService.errorDomain
 - Name: NSNetServicesErrorCode

stdlib/private/StdlibUnittestFoundationExtras/StdlibUnittestFoundationExtras.swift

@@ -13,25 +13,25 @@
 import ObjectiveC
 import Foundation
 
-internal var _temporaryLocaleCurrentLocale: NSLocale? = nil
+internal var _temporaryLocaleCurrentLocale: Locale? = nil
 
-extension NSLocale {
+extension Locale {
   @objc
-  public class func _swiftUnittest_currentLocale() -> NSLocale {
+  public class func _swiftUnittest_currentLocale() -> Locale {
     return _temporaryLocaleCurrentLocale!
   }
 }
 
 public func withOverriddenLocaleCurrentLocale<Result>(
-  _ temporaryLocale: NSLocale,
+  _ temporaryLocale: Locale,
   _ body: @noescape () -> Result
 ) -> Result {
   let oldMethod = class_getClassMethod(
-    NSLocale.self, #selector(getter: NSLocale.current))
+    Locale.self, #selector(getter: Locale.current))
   precondition(oldMethod != nil, "could not find +[Locale currentLocale]")
 
   let newMethod = class_getClassMethod(
-    NSLocale.self, #selector(NSLocale._swiftUnittest_currentLocale))
+    Locale.self, #selector(Locale._swiftUnittest_currentLocale))
   precondition(newMethod != nil, "could not find +[Locale _swiftUnittest_currentLocale]")
 
   precondition(_temporaryLocaleCurrentLocale == nil,
@@ -51,11 +51,11 @@ public func withOverriddenLocaleCurrentLocale<Result>(
   _ body: @noescape () -> Result
 ) -> Result {
   precondition(
-    NSLocale.availableLocaleIdentifiers.contains(temporaryLocaleIdentifier),
+    Locale.availableLocaleIdentifiers.contains(temporaryLocaleIdentifier),
     "requested locale \(temporaryLocaleIdentifier) is not available")
 
   return withOverriddenLocaleCurrentLocale(
-    NSLocale(localeIdentifier: temporaryLocaleIdentifier), body)
+    Locale(localeIdentifier: temporaryLocaleIdentifier), body)
 }
 
 /// Executes the `body` in an autorelease pool if the platform does not

stdlib/public/SDK/Foundation/CMakeLists.txt

@@ -7,9 +7,6 @@ add_swift_library(swiftFoundation ${SWIFT_SDK_OVERLAY_LIBRARY_BUILD_TYPES} IS_SD
   ExtraStringAPIs.swift
   ReferenceConvertible.swift
   AffineTransform.swift
-  Calendar.swift
-  TimeZone.swift
-  Locale.swift
   CharacterSet.swift
   Date.swift
   DateComponents.swift