Added IRequireBuildUpPolicy

src/Builder/UnityBuildStage.cs

@@ -13,17 +13,17 @@ public enum UnityBuildStage
         /// </summary>
         Setup,
 
-        /// <summary>
-        /// Second stage. Type mapping occurs here.
-        /// </summary>
-        TypeMapping,
-
         /// <summary>
         /// Third stage. lifetime managers are checked here,
         /// and if they're available the rest of the pipeline is skipped.
         /// </summary>
         Lifetime,
 
+        /// <summary>
+        /// Second stage. Type mapping occurs here.
+        /// </summary>
+        TypeMapping,
+
         /// <summary>
         /// Fourth stage. Reflection over constructors, properties, etc. is
         /// performed here.

src/Lifetime/PerResolveLifetimeManager.cs

@@ -1,13 +1,15 @@
 // Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
 
+using Unity.Policy;
+
 namespace Unity.Lifetime
 {
     /// <summary>
     /// This is a custom lifetime manager that acts like <see cref="TransientLifetimeManager"/>,
     /// but also provides a signal to the default build plan, marking the type so that
     /// instances are reused across the build up object graph.
     /// </summary>
-    public class PerResolveLifetimeManager : LifetimeManager
+    public class PerResolveLifetimeManager : LifetimeManager, IRequireBuildUpPolicy
     {
         protected object value;
 

src/Policy/IRequireBuildUpPolicy.cs

@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Unity.Policy
+{
+    public interface IRequireBuildUpPolicy
+    {
+    }
+}