Add [SkipLocalsInit] to missing assemblies

CommunityToolkit.Common/Attributes/SkipLocalsInitAttribute.cs

@@ -0,0 +1,27 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+#if !NET6_0_OR_GREATER
+
+namespace System.Runtime.CompilerServices;
+
+/// <summary>
+/// Used to indicate to the compiler that the <c>.locals init</c> flag should not be set in method headers.
+/// </summary>
+/// <remarks>Internal copy of the .NET 5 attribute.</remarks>
+[AttributeUsage(
+    AttributeTargets.Module |
+    AttributeTargets.Class |
+    AttributeTargets.Struct |
+    AttributeTargets.Interface |
+    AttributeTargets.Constructor |
+    AttributeTargets.Method |
+    AttributeTargets.Property |
+    AttributeTargets.Event,
+    Inherited = false)]
+internal sealed class SkipLocalsInitAttribute : Attribute
+{
+}
+
+#endif

CommunityToolkit.Common/Properties/AssemblyInfo.cs

@@ -0,0 +1,8 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.CompilerServices;
+
+// See notes in CommunityToolkit.HighPerformance for more info
+[module: SkipLocalsInit]

CommunityToolkit.Diagnostics/Extensions/ValueTypeExtensions.cs

@@ -41,7 +41,6 @@ public static class ValueTypeExtensions
     /// Console.WriteLine((-1).ToHexString()); // "0xFFFFFFFF"
     /// </code>
     /// </remarks>
-    [SkipLocalsInit]
     public static unsafe string ToHexString<T>(this T value)
         where T : unmanaged
     {

CommunityToolkit.Diagnostics/Properties/AssemblyInfo.cs

@@ -0,0 +1,8 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.CompilerServices;
+
+// See notes in CommunityToolkit.HighPerformance for more info
+[module: SkipLocalsInit]

CommunityToolkit.Mvvm/Properties/AssemblyInfo.cs

@@ -4,4 +4,7 @@
 
 using System.Runtime.CompilerServices;
 
+// See notes in CommunityToolkit.HighPerformance for more info
+[module: SkipLocalsInit]
+
 [assembly: InternalsVisibleTo("CommunityToolkit.Mvvm.Internals.UnitTests")]

CommunityToolkit.Mvvm/Properties/Polyfills/Attributes/SkipLocalsInitAttribute.cs

@@ -0,0 +1,27 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+#if !NET6_0_OR_GREATER
+
+namespace System.Runtime.CompilerServices;
+
+/// <summary>
+/// Used to indicate to the compiler that the <c>.locals init</c> flag should not be set in method headers.
+/// </summary>
+/// <remarks>Internal copy from the BCL attribute.</remarks>
+[AttributeUsage(
+    AttributeTargets.Module |
+    AttributeTargets.Class |
+    AttributeTargets.Struct |
+    AttributeTargets.Interface |
+    AttributeTargets.Constructor |
+    AttributeTargets.Method |
+    AttributeTargets.Property |
+    AttributeTargets.Event,
+    Inherited = false)]
+internal sealed class SkipLocalsInitAttribute : Attribute
+{
+}
+
+#endif