Imported Upstream version 6.4.0.137

Former-commit-id: 943baa9f16a098c33e129777827f3a9d20da00d6

external/illinker-test-assets/wasm/HelloWorld/Program.cs

@@ -0,0 +1,16 @@
+using Microsoft.AspNetCore.Blazor.Hosting;
+
+namespace HelloWorld
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IWebAssemblyHostBuilder CreateHostBuilder(string[] args) =>
+            BlazorWebAssemblyHost.CreateDefaultBuilder()
+                .UseBlazorStartup<Startup>();
+    }
+}