Integrating latest 47acbe8

Code/Framework/AzToolsFramework/Tests/Prefab/PrefabTestUndoFixture.h

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+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#pragma once
+#include <Prefab/PrefabTestFixture.h>
+
+namespace UnitTest
+{
+    class PrefabTestUndoFixture
+        : public PrefabTestFixture
+    {
+    protected:
+        void SetupInstances(
+            AZStd::unique_ptr<Instance>& firstInstance,
+            AZStd::unique_ptr<Instance>& secondInstance,
+            TemplateId& ownerId,
+            TemplateId& referenceId);
+    };
+}