[Foundation] NSUrlSessionHandler.ClientCertificateOptions is supported.

src/Foundation/NSUrlSessionHandler.cs

@@ -587,13 +587,6 @@ public X509CertificateCollection ClientCertificates {
 			}
 		}
 
-		// We're ignoring this property, just like Xamarin.Android does:
-		// https://github.com/xamarin/xamarin-android/blob/09e8cb5c07ea6c39383185a3f90e53186749b802/src/Mono.Android/Xamarin.Android.Net/AndroidMessageHandler.cs#L148
-		[UnsupportedOSPlatform ("ios")]
-		[UnsupportedOSPlatform ("maccatalyst")]
-		[UnsupportedOSPlatform ("tvos")]
-		[UnsupportedOSPlatform ("macos")]
-		[EditorBrowsable (EditorBrowsableState.Never)]
 		public ClientCertificateOption ClientCertificateOptions { get; set; }
 
 		// We're ignoring this property, just like Xamarin.Android does:

tests/cecil-tests/ApiAvailabilityTest.KnownFailures.cs

@@ -29,7 +29,6 @@ public partial class ApiAvailabilityTest {
 			"/src/Foundation/NSStream.cs has 4 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'CFStream.CFStreamCreatePairWithPeerSocketSignature(nint, CFSocketSignature*, nint*, nint*)' is obsoleted on: 'ios' 15.0 and later (Use 'Network.framework' instead.), 'maccatalyst' 15.0 and later (Use 'Network.framework' instead.), 'macOS/OSX' 12.0 and later (Use 'Network.framework' instead.), 'tvos' 15.0 and later (Use 'Network.framework' instead.). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)",
 			"/src/Foundation/NSStream.cs has 4 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'CFStream.CFStreamCreatePairWithSocket(nint, CFSocketNativeHandle, nint*, nint*)' is obsoleted on: 'ios' 15.0 and later (Use 'Network.framework' instead.), 'maccatalyst' 15.0 and later (Use 'Network.framework' instead.), 'macOS/OSX' 12.0 and later (Use 'Network.framework' instead.), 'tvos' 15.0 and later (Use 'Network.framework' instead.). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)",
 			"/src/Foundation/NSStream.cs has 4 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'CFStream.CFStreamCreatePairWithSocketToCFHost(nint, nint, int, nint*, nint*)' is obsoleted on: 'ios' 15.0 and later (Use 'Network.framework' instead.), 'maccatalyst' 15.0 and later (Use 'Network.framework' instead.), 'macOS/OSX' 12.0 and later (Use 'Network.framework' instead.), 'tvos' 15.0 and later (Use 'Network.framework' instead.). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)",
-			"/src/Foundation/NSUrlSessionHandler.cs has 12 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'NSUrlSessionHandler.ClientCertificateOptions' is unsupported on: 'ios' all versions, 'maccatalyst' all versions, 'macOS/OSX' all versions, 'tvos' all versions. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)",
 			"/src/Foundation/NSUrlSessionHandler.cs has 20 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'NSUrlSessionConfiguration.TLSMinimumSupportedProtocol' is obsoleted on: 'ios' 13.0 and later (Use 'TlsMinimumSupportedProtocolVersion' instead.), 'maccatalyst' 13.0 and later (Use 'TlsMinimumSupportedProtocolVersion' instead.), 'macOS/OSX' 10.15 and later (Use 'TlsMinimumSupportedProtocolVersion' instead.), 'tvos' 13.0 and later (Use 'TlsMinimumSupportedProtocolVersion' instead.). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)",
 			"/src/Foundation/NSUrlSessionHandler.cs has 4 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'SecTrust.GetCertificateChain()' is supported on: 'ios' 15.0 and later, 'tvos' 15.0 and later. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416)",
 			"/src/Foundation/NSUrlSessionHandler.cs has 4 occurrences of This call site is reachable on: 'ios' 12.2 and later, 'maccatalyst' 12.2 and later, 'macOS/OSX' 12.0 and later, 'tvos' 12.2 and later. 'SecTrust.this[nint]' is obsoleted on: 'ios' 15.0 and later (Use the 'GetCertificateChain' method instead.), 'maccatalyst' all versions, 'macOS/OSX' all versions, 'tvos' 15.0 and later (Use the 'GetCertificateChain' method instead.). (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1422)",

tests/cecil-tests/Documentation.KnownFailures.txt

@@ -19886,6 +19886,7 @@ P:Foundation.NSUrlSessionConfiguration.StrongConnectionProxyDictionary
 P:Foundation.NSUrlSessionConfiguration.UsesClassicLoadingMode
 P:Foundation.NSUrlSessionHandler.AllowsCellularAccess
 P:Foundation.NSUrlSessionHandler.AutomaticDecompression
+P:Foundation.NSUrlSessionHandler.ClientCertificateOptions
 P:Foundation.NSUrlSessionHandler.CookieContainer
 P:Foundation.NSUrlSessionHandler.MaxAutomaticRedirections
 P:Foundation.NSUrlSessionHandler.ServerCertificateCustomValidationCallback
@@ -23289,6 +23290,7 @@ P:StoreKit.StoreProductParameters.ProductIdentifier
 P:StoreKit.StoreProductParameters.ProviderToken
 P:System.Net.Http.NSUrlSessionHandler.AllowsCellularAccess
 P:System.Net.Http.NSUrlSessionHandler.AutomaticDecompression
+P:System.Net.Http.NSUrlSessionHandler.ClientCertificateOptions
 P:System.Net.Http.NSUrlSessionHandler.CookieContainer
 P:System.Net.Http.NSUrlSessionHandler.MaxAutomaticRedirections
 P:System.Net.Http.NSUrlSessionHandler.ServerCertificateCustomValidationCallback