Fix analyzer warnings in Windows library tests

Agent-Logs-Url: https://github.com/dotnet/runtime/sessions/5e49e977-7ef9-4b3f-ba25-f076d020cb7e

Co-authored-by: MichalStrehovsky <13110571+MichalStrehovsky@users.noreply.github.com>

Author: Copilot

src/libraries/System.DirectoryServices/tests/System/DirectoryServices/DirectoryServicesTests.cs

@@ -1,12 +1,12 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-using System.Runtime.InteropServices;
-using System.Collections.Generic;
 using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Runtime.InteropServices;
 using Xunit;
 using Xunit.Sdk;
-using System.Reflection;
 
 namespace System.DirectoryServices.Tests
 {
@@ -18,7 +18,9 @@ public partial class DirectoryServicesTests
         [Fact]
         public void TestGetAllTypes()
         {
+#pragma warning disable IL2026 // Test validates Assembly.GetTypes in an untrimmed test build.
             Type[] allTypes = typeof(DirectoryEntry).Assembly.GetTypes();
+#pragma warning restore IL2026
             Assert.Contains(typeof(DirectoryEntry), allTypes);
         }
 

src/libraries/System.Management/tests/System/Management/ManagementObjectTests.cs

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Runtime.Serialization.Formatters.Binary;
 using Microsoft.DotNet.XUnitExtensions;
@@ -105,6 +106,10 @@ public void Invoke_Instance_And_Static_Method_Win32_Process()
         [ConditionalFact(typeof(WmiTestHelper), nameof(WmiTestHelper.IsWmiSupported))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/34689", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [OuterLoop]
+#if NET
+        [RequiresDynamicCode("BinaryFormatter serialization uses dynamic code generation")]
+        [RequiresUnreferencedCode("BinaryFormatter serialization is not trim compatible")]
+#endif
         public void Serialize_ManagementException()
         {
             try