[SR-3202] Some of properties of Locale.current object are not filled on Linux

Author: saiHemak

Foundation/NSLocale.swift

@@ -28,7 +28,7 @@ open class NSLocale: NSObject, NSCopying, NSSecureCoding {
     }
 
     open func object(forKey key: NSLocale.Key) -> Any? {
-        return CFLocaleGetValue(_cfObject, key.rawValue._cfObject)
+        return _SwiftValue.fetch(CFLocaleGetValue(_cfObject, key.rawValue._cfObject))
     }
 
     open func displayName(forKey key: Key, value: String) -> String? {
@@ -91,7 +91,7 @@ extension NSLocale {
 
 extension NSLocale {
     public var localeIdentifier: String {
-        return (object(forKey: .identifier) as! NSString)._swiftObject
+        return object(forKey: .identifier) as! String
     }
 
     open class var availableLocaleIdentifiers: [String] {

TestFoundation/TestNSLocale.swift

@@ -22,6 +22,7 @@ class TestNSLocale : XCTestCase {
             ("test_Identifier", test_Identifier),
             ("test_copy", test_copy),
             ("test_availableIdentifiers", test_availableIdentifiers),
+            ("test_localeProperties", test_localeProperties),
         ]
     }
 
@@ -112,4 +113,14 @@ class TestNSLocale : XCTestCase {
      func test_availableIdentifiers() {
         XCTAssertNoThrow(Locale.availableIdentifiers)
     }
+ 
+    func test_localeProperties(){
+        let enUSID = "en_US"
+        let locale = Locale(identifier: enUSID)
+        XCTAssertEqual(String(describing: locale.languageCode!), "en")
+        XCTAssertEqual(String(describing: locale.decimalSeparator!), ".")
+        XCTAssertEqual(String(describing: locale.currencyCode!), "USD")
+        XCTAssertEqual(String(describing: locale.collatorIdentifier!), enUSID)
+    }
+
 }