Make updatedTypes an optional arg

Author: MackinnonBuck

src/Components/WebAssembly/WebAssembly/src/HotReload/WebAssemblyHotReload.cs

@@ -43,7 +43,7 @@ internal static async Task InitializeAsync()
     /// For framework use only.
     /// </summary>
     [JSInvokable(nameof(ApplyHotReloadDelta))]
-    public static void ApplyHotReloadDelta(string moduleIdString, byte[] metadataDelta, byte[] ilDelta, byte[] pdbBytes, int[] updatedTypes)
+    public static void ApplyHotReloadDelta(string moduleIdString, byte[] metadataDelta, byte[] ilDelta, byte[] pdbBytes, int[]? updatedTypes)
     {
         // Analyzer has a bug where it doesn't handle ConditionalAttribute: https://github.com/dotnet/roslyn/issues/63464
 #pragma warning disable IDE0200 // Remove unnecessary lambda expression

src/Components/WebAssembly/WebAssembly/src/PublicAPI.Unshipped.txt

@@ -1,3 +1,3 @@
 #nullable enable
-static Microsoft.AspNetCore.Components.WebAssembly.HotReload.WebAssemblyHotReload.ApplyHotReloadDelta(string! moduleIdString, byte[]! metadataDelta, byte[]! ilDelta, byte[]! pdbBytes, int[]! updatedTypes) -> void
+static Microsoft.AspNetCore.Components.WebAssembly.HotReload.WebAssemblyHotReload.ApplyHotReloadDelta(string! moduleIdString, byte[]! metadataDelta, byte[]! ilDelta, byte[]! pdbBytes, int[]? updatedTypes) -> void
 static Microsoft.AspNetCore.Components.WebAssembly.Http.WebAssemblyHttpRequestMessageExtensions.SetBrowserRequestStreamingEnabled(this System.Net.Http.HttpRequestMessage! requestMessage, bool streamingEnabled) -> System.Net.Http.HttpRequestMessage!