Fix stubs

src/Controls/tests/Core.UnitTests/TestClasses/ApplicationStub.cs

@@ -5,6 +5,7 @@ namespace Microsoft.Maui.Controls.Core.UnitTests
 {
 	class ApplicationStub : IApplication
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		readonly List<IWindow> _windows = new List<IWindow>();
 
 		public IElementHandler Handler { get; set; }

src/Controls/tests/DeviceTests/Stubs/MauiAppNewWindowStub.Windows.cs

@@ -7,6 +7,7 @@ namespace Microsoft.Maui.DeviceTests.Stubs
 {
 	class MauiAppNewWindowStub : IApplication
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		readonly IWindow _window;
 		Window Window => _window as Window;
 

src/Core/tests/Benchmarks/Stubs/ApplicationStub.cs

@@ -6,6 +6,8 @@ namespace Microsoft.Maui.Handlers.Benchmarks
 	class ApplicationStub : IApplication
 	{
 		readonly List<IWindow> _windows = new List<IWindow>();
+
+		bool IElement.IsPlatformViewNew { get; set; }
 
 		public IElementHandler Handler { get; set; }
 

src/Core/tests/Benchmarks/Stubs/StubBase.cs

@@ -8,6 +8,7 @@ namespace Microsoft.Maui.Handlers.Benchmarks
 {
 	public class StubBase : IView
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		IElementHandler IElement.Handler
 		{
 			get => Handler;

src/Core/tests/DeviceTests.Shared/Stubs/CoreApplicationStub.cs

@@ -5,6 +5,7 @@ namespace Microsoft.Maui.DeviceTests.Stubs
 {
 	public class CoreApplicationStub : IApplication
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		IWindow _singleWindow;
 
 		readonly List<IWindow> _windows = new List<IWindow>();

src/Core/tests/DeviceTests.Shared/Stubs/WindowStub.cs

@@ -13,6 +13,8 @@ public WindowStub()
 		HashSet<IWindowOverlay> _overlays = new HashSet<IWindowOverlay>();
 		List<IVisualTreeElement> _visualChildren = new List<IVisualTreeElement>();
 
+		bool IElement.IsPlatformViewNew { get; set; }
+
 		public IElementHandler Handler { get; set; }
 
 		public IElement Parent { get; set; }

src/Core/tests/DeviceTests/Stubs/ElementStub.cs

@@ -2,6 +2,7 @@
 {
 	public class ElementStub : IElement
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		public IElement Parent { get; set; }
 
 		public IElementHandler Handler { get; set; }

src/Core/tests/UnitTests/Layouts/ZIndexTests.cs

@@ -15,6 +15,7 @@ public class ZIndexTests
 		// These tests need a real collection to work with; we can't reasonably use a substitute here
 		class FakeLayout : ILayout, IList<IView>
 		{
+			bool IElement.IsPlatformViewNew { get; set; }
 			public bool ClipsToBounds { get; set; }
 
 

src/Core/tests/UnitTests/TestClasses/ApplicationStub.cs

@@ -5,6 +5,7 @@ namespace Microsoft.Maui.UnitTests
 {
 	class ApplicationStub : IApplication
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		readonly List<IWindow> _windows = new List<IWindow>();
 
 		public IElementHandler Handler { get; set; }

src/Core/tests/UnitTests/TestClasses/ViewStub.cs

@@ -5,6 +5,7 @@ namespace Microsoft.Maui.UnitTests
 {
 	class ViewStub : IViewStub
 	{
+		bool IElement.IsPlatformViewNew { get; set; }
 		IElementHandler IElement.Handler
 		{
 			get => Handler;