more review fixes.

src/Windows/Avalonia.Win32/TrayIconImpl.cs

@@ -205,13 +205,12 @@ namespace Avalonia.Win32
                 });
             }
 
-            class TrayIconManagedPopupPositionerPopupImplHelper : IManagedPopupPositionerPopup
+            private class TrayIconManagedPopupPositionerPopupImplHelper : IManagedPopupPositionerPopup
             {
-                public delegate void MoveResizeDelegate(PixelPoint position, Size size, double scaling);
-                private readonly MoveResizeDelegate _moveResize;
+                private readonly Action<PixelPoint, Size, double> _moveResize;
                 private readonly Window _hiddenWindow;
 
-                public TrayIconManagedPopupPositionerPopupImplHelper(MoveResizeDelegate moveResize)
+                public TrayIconManagedPopupPositionerPopupImplHelper(Action<PixelPoint, Size, double> moveResize)
                 {
                     _moveResize = moveResize;
                     _hiddenWindow = new Window();

src/Windows/Avalonia.Win32/Win32NativeToManagedMenuExporter.cs

@@ -17,13 +17,11 @@ namespace Avalonia.Win32
 
         private IEnumerable<MenuItem> Populate (NativeMenu nativeMenu)
         {
-            var items = new List<MenuItem>();
-
             foreach (var menuItem in nativeMenu.Items)
             {
                 if (menuItem is NativeMenuItemSeparator)
                 {
-                    items.Add(new MenuItem { Header = "-" });   
+                    yield return new MenuItem { Header = "-" };   
                 }
                 else if (menuItem is NativeMenuItem item)
                 {
@@ -35,14 +33,12 @@ namespace Avalonia.Win32
                     }
                     else if (item.HasClickHandlers && item is INativeMenuItemExporterEventsImplBridge bridge)
                     {
-                        newItem.Click += (s, e) => bridge.RaiseClicked();
+                        newItem.Click += (_, __) => bridge.RaiseClicked();
                     }
 
-                    items.Add(newItem);
+                    yield return newItem;
                 }
             }
-
-            return items;
         }
 
         public IEnumerable<MenuItem>? GetMenu ()