[coretelephony] Update for Xcode 11 beta 1 (#6576)

No changes in beta 2 and 3

src/coretelephony.cs

@@ -67,6 +67,17 @@ namespace CoreTelephony {
 		NSString LTE { get; }
 	}
 
+	interface ICTTelephonyNetworkInfoDelegate {}
+
+	[iOS (13,0)]
+	[Protocol, Model (AutoGeneratedName = true)]
+	[BaseType (typeof (NSObject))]
+	interface CTTelephonyNetworkInfoDelegate {
+
+		[Export ("dataServiceIdentifierDidChange:")]
+		void DataServiceIdentifierDidChange (string identifier);
+	}
+
 	[BaseType (typeof (NSObject))]
 	interface CTTelephonyNetworkInfo {
 		[Deprecated (PlatformName.iOS, 12,0, message: "Use 'ServiceSubscriberCellularProviders' instead.")]
@@ -105,6 +116,19 @@ namespace CoreTelephony {
 		[Notification]
 		[Field ("CTServiceRadioAccessTechnologyDidChangeNotification")]
 		NSString ServiceRadioAccessTechnologyDidChangeNotification { get; }
+
+		[iOS (13,0)]
+		[NullAllowed, Export ("dataServiceIdentifier")]
+		string DataServiceIdentifier { get; }
+
+		[iOS (13,0)]
+		[Wrap ("WeakDelegate")]
+		[NullAllowed]
+		ICTTelephonyNetworkInfoDelegate Delegate { get; set; }
+
+		[iOS (13,0)]
+		[NullAllowed, Export ("delegate", ArgumentSemantic.Weak)]
+		NSObject WeakDelegate { get; set; }
 	}
 
 #if !XAMCORE_2_0

tests/xtro-sharpie/iOS-CoreTelephony.todo

@@ -1,4 +0,0 @@
-!missing-protocol! CTTelephonyNetworkInfoDelegate not bound
-!missing-selector! CTTelephonyNetworkInfo::dataServiceIdentifier not bound
-!missing-selector! CTTelephonyNetworkInfo::delegate not bound
-!missing-selector! CTTelephonyNetworkInfo::setDelegate: not bound