Discover assembly parts for Microsoft.AspnetCore.All

src/Microsoft.AspNetCore.Mvc.Core/Internal/DefaultAssemblyPartDiscoveryProvider.cs

@@ -16,6 +16,7 @@ namespace Microsoft.AspNetCore.Mvc.Internal
     {
         internal static HashSet<string> ReferenceAssemblies { get; } = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
         {
+            "Microsoft.AspNetCore.All",
             "Microsoft.AspNetCore.Mvc",
             "Microsoft.AspNetCore.Mvc.Abstractions",
             "Microsoft.AspNetCore.Mvc.ApiExplorer",

test/Microsoft.AspNetCore.Mvc.Core.Test/Internal/DefaultAssemblyPartDiscoveryProviderTest.cs

@@ -245,6 +245,7 @@ namespace Microsoft.AspNetCore.Mvc.Internal
             {
                 // The following assemblies are not reachable from Microsoft.AspNetCore.Mvc
                 "Microsoft.AspNetCore.Mvc.Formatters.Xml",
+                "Microsoft.AspnetCore.All",
             };
 
             var dependencyContextLibraries = DependencyContext.Load(CurrentAssembly)