Restore IsGranted extension method deprecated in Castle.Core

Castler.Core deprecated CAS handling (castleproject/Core#502), this commit restores the relevant method and associated test.

castleproject#612 - Updating Windsor to support Castle.Core@5.0.0 and modern TFMs

src/Castle.Windsor.Tests/Compatibility/PermissionUtilTests.cs

@@ -0,0 +1,38 @@
+// Copyright 2004-2022 Castle Project - http://www.castleproject.org/
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// 
+//     http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#if FEATURE_SECURITY_PERMISSIONS
+
+namespace Castle.Windsor.Tests.Compatibility
+{
+	using System.Security.Permissions;
+
+	using Castle.Windsor.Compatibility;
+	using NUnit.Framework;
+
+	[TestFixture]
+	public class PermissionUtilTests
+	{
+		[Test]
+		public void Correctly_determines_permissions()
+		{
+			// Execution has to be always granted. Otherwise this code wouldn't run in the first place.
+			var securityPermission = new SecurityPermission(SecurityPermissionFlag.Execution);
+
+			Assert.IsTrue(securityPermission.IsGranted());
+		}
+	}
+}
+
+#endif 

src/Castle.Windsor/Compatibility/PermissionUtil.cs

@@ -0,0 +1,35 @@
+// Copyright 2004-2022 Castle Project - http://www.castleproject.org/
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// 
+//     http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#if FEATURE_SECURITY_PERMISSIONS
+
+namespace Castle.Windsor.Compatibility
+{
+	using System;
+	using System.Security;
+	using System.Security.Permissions;
+
+	public static class PermissionUtil
+	{
+		public static bool IsGranted(this IPermission permission)
+		{
+			var permissionSet = new PermissionSet(PermissionState.None);
+			permissionSet.AddPermission(permission);
+
+			return permissionSet.IsSubsetOf(AppDomain.CurrentDomain.PermissionSet);
+		}
+	}
+}
+
+#endif

src/Castle.Windsor/MicroKernel/ComponentActivator/DefaultComponentActivator.cs

@@ -1,4 +1,4 @@
-// Copyright 2004-2012 Castle Project - http://www.castleproject.org/
+// Copyright 2004-2022 Castle Project - http://www.castleproject.org/
 // 
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -26,6 +26,9 @@ namespace Castle.MicroKernel.ComponentActivator
 	using Castle.Core.Internal;
 	using Castle.DynamicProxy;
 	using Castle.MicroKernel.Context;
+#if FEATURE_SECURITY_PERMISSIONS
+	using Castle.Windsor.Compatibility;
+#endif
 
 	/// <summary>
 	/// 	Standard implementation of <see cref = "IComponentActivator" />. Handles the selection of the best constructor, fills the writable properties the component exposes, run the commission and

src/Castle.Windsor/MicroKernel/DefaultKernel.cs

@@ -1,4 +1,4 @@
-// Copyright 2004-2012 Castle Project - http://www.castleproject.org/
+// Copyright 2004-2022 Castle Project - http://www.castleproject.org/
 // 
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,7 +15,6 @@
 namespace Castle.MicroKernel
 {
 	using System;
-	using System.Collections;
 	using System.Collections.Generic;
 	using System.Diagnostics;
 	using System.Linq;
@@ -44,6 +43,9 @@ namespace Castle.MicroKernel
 	using Castle.MicroKernel.SubSystems.Conversion;
 	using Castle.MicroKernel.SubSystems.Naming;
 	using Castle.MicroKernel.SubSystems.Resource;
+#if FEATURE_SECURITY_PERMISSIONS
+	using Castle.Windsor.Compatibility;
+#endif
 	using Castle.Windsor.Diagnostics;
 
 	/// <summary>