Add AutoStaticsCleanup + fix typo

Author: noellie-velez

com.unity.netcode.gameobjects/Runtime/Messaging/INetworkMessage.cs

@@ -1,3 +1,7 @@
+#if UNITY_6000_6_OR_NEWER
+using Unity.Scripting.LifecycleManagement;
+#endif
+
 namespace Unity.Netcode
 {
     /// <summary>
@@ -44,8 +48,10 @@ internal interface INetworkMessage
         public int Version { get; }
     }
 
-
-    internal static class MessageDeliveryType<T> where T : INetworkMessage
+#if UNITY_6000_6_OR_NEWER
+    [AutoStaticsCleanup]
+#endif
+    internal static partial class MessageDeliveryType<T> where T : INetworkMessage
     {
         internal static NetworkDelivery DefaultDelivery { get; private set; }
         internal static void Initialize()

com.unity.netcode.gameobjects/Runtime/NetworkVariable/Serialization/CollectionSerializationUtility.cs

@@ -3,10 +3,13 @@
 using Unity.Collections;
 using Unity.Collections.LowLevel.Unsafe;
 using Unity.Mathematics;
+#if UNITY_6000_6_OR_NEWER
+using Unity.Scripting.LifecycleManagement;
+#endif
 
 namespace Unity.Netcode
 {
-    internal static class CollectionSerializationUtility
+    internal static partial class CollectionSerializationUtility
     {
         public static void WriteNativeArrayDelta<T>(FastBufferWriter writer, ref NativeArray<T> value, ref NativeArray<T> previousValue) where T : unmanaged
         {
@@ -258,7 +261,10 @@ public static void ReadListDelta<T>(FastBufferReader reader, ref List<T> value)
         // For HashSet and Dictionary, we need to have some local space to hold lists we need to serialize.
         // We don't want to do allocations all the time and we know each one needs a maximum of three lists,
         // so we're going to keep static lists that we can reuse in these methods.
-        private static class ListCache<T>
+#if UNITY_6000_6_OR_NEWER
+        [AutoStaticsCleanup]
+#endif
+        private static partial class ListCache<T>
         {
             private static List<T> s_AddedList = new List<T>();
             private static List<T> s_RemovedList = new List<T>();

com.unity.netcode.gameobjects/Runtime/NetworkVariable/Serialization/NetworkVariableSerialization.cs

@@ -1,4 +1,7 @@
 using System;
+#if UNITY_6000_6_OR_NEWER
+using Unity.Scripting.LifecycleManagement;
+#endif
 
 namespace Unity.Netcode
 {
@@ -9,8 +12,11 @@ namespace Unity.Netcode
     ///     based on which constraints are met by `T` using reflection, which is done at module load time.
     /// </summary>
     /// <typeparam name="T">The type the associated NetworkVariable is templated on</typeparam>
+#if UNITY_6000_6_OR_NEWER
+    [AutoStaticsCleanup]
+#endif
     [Serializable]
-    public static class NetworkVariableSerialization<T>
+    public static partial class NetworkVariableSerialization<T>
     {
         internal static INetworkVariableSerializer<T> Serializer = new FallbackSerializer<T>();
 

com.unity.netcode.gameobjects/Runtime/NetworkVariable/Serialization/UserNetworkVariableSerialization.cs

@@ -1,3 +1,7 @@
+#if UNITY_6000_6_OR_NEWER
+using Unity.Scripting.LifecycleManagement;
+#endif
+
 namespace Unity.Netcode
 {
     /// <summary>
@@ -7,7 +11,10 @@ namespace Unity.Netcode
     /// users to tell NetworkVariable about those extension methods (or simply pass in a lambda)
     /// </summary>
     /// <typeparam name="T">The type of value being serialized</typeparam>
-    public class UserNetworkVariableSerialization<T>
+#if UNITY_6000_6_OR_NEWER
+    [AutoStaticsCleanup]
+#endif
+    public partial class UserNetworkVariableSerialization<T>
     {
         /// <summary>
         /// The write value delegate handler definition

com.unity.netcode.gameobjects/Runtime/SceneManagement/NetworkSceneManager.cs

@@ -599,7 +599,7 @@ internal bool HasSceneAuthority()
         }
 
         /// <summary>
-        /// Handle NetworkSeneManager clean up
+        /// Handle NetworkSceneManager clean up
         /// </summary>
         public void Dispose()
         {