Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/aspnetwebstack/src/System.Web.Mvc/ActionMethodDispatcherCache.cs

@@ -0,0 +1,18 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+using System.Reflection;
+
+namespace System.Web.Mvc
+{
+    internal sealed class ActionMethodDispatcherCache : ReaderWriterCache<MethodInfo, ActionMethodDispatcher>
+    {
+        public ActionMethodDispatcherCache()
+        {
+        }
+
+        public ActionMethodDispatcher GetDispatcher(MethodInfo methodInfo)
+        {
+            return FetchOrCreateItem(methodInfo, () => new ActionMethodDispatcher(methodInfo));
+        }
+    }
+}