chore: Make sure that all visual has valid comment in debug

src/Uno.UI/UI/Xaml/Controls/TextBlock/TextBlock.skia.cs

@@ -31,6 +31,14 @@ namespace Windows.UI.Xaml.Controls
 			Visual.Children.InsertAtBottom(_textVisual);
 		}
 
+#if DEBUG
+		private protected override void OnLoaded()
+		{
+			base.OnLoaded();
+			_textVisual.Comment = $"{Visual.Comment}#text";
+		}
+#endif
+
 		protected override Size MeasureOverride(Size availableSize)
 		{
 			var padding = Padding;

src/Uno.UI/UI/Xaml/UIElement.crossruntime.cs

@@ -68,6 +68,8 @@ namespace Windows.UI.Xaml
 			visualTreeRoot.OnElementUnloaded();
 		}
 
+		partial void OnLoading();
+
 		// Overloads for the FrameworkElement to raise the events
 		// (Load/Unload is actually a concept of the FwElement, but it's easier to handle it directly from the UIElement)
 		private protected virtual void OnFwEltLoading() { }
@@ -85,6 +87,7 @@ namespace Windows.UI.Xaml
 			IsLoading = true;
 			Depth = depth;
 
+			OnLoading();
 			OnFwEltLoading();
 
 			// Explicit propagation of the loading even must be performed

src/Uno.UI/UI/Xaml/UIElement.skia.cs

@@ -81,7 +81,7 @@ namespace Windows.UI.Xaml
 				{
 					_visual = Window.Current.Compositor.CreateShapeVisual();
 #if ENABLE_CONTAINER_VISUAL_TRACKING
-					_visual.Comment = $"Owner: {this.GetDebugDepth():D2}-{this.GetDebugName()}";
+					_visual.Comment = $"{this.GetDebugDepth():D2}-{this.GetDebugName()}";
 #endif
 				}
 
@@ -89,6 +89,16 @@ namespace Windows.UI.Xaml
 			}
 		}
 
+#if ENABLE_CONTAINER_VISUAL_TRACKING // Make sure to update the Comment to have the valid depth
+		partial void OnLoading()
+		{
+			if (_visual is not null)
+			{
+				_visual.Comment = $"{this.GetDebugDepth():D2}-{this.GetDebugName()}";
+			}
+		}
+#endif
+
 		internal bool ClippingIsSetByCornerRadius { get; set; }
 
 		public void AddChild(UIElement child, int? index = null)