Fix selectors with template bindings

src/Markup/Avalonia.Markup.Xaml.Loader/CompilerExtensions/Transformers/AvaloniaXamlIlSelectorTransformer.cs

@@ -208,17 +208,9 @@ namespace Avalonia.Markup.Xaml.XamlIl.CompilerExtensions.Transformers
                 if (node is XamlIlCombinatorSelector
                     {
                         SelectorType: XamlIlCombinatorSelector.CombinatorSelectorType.Template
-                    } templateSelector)
+                    })
                 {
-                    if (templateSelector.Previous is XamlIlNestingSelector nestingSelector)
+                    return node.Previous.TargetType;
-                    {
-                        return nestingSelector.TargetType;
-                    }
-                    if (templateSelector.Previous is XamlIlTypeSelector typeSelector)
-                    {
-                        return typeSelector.TargetType;
-                    }
-                    return null;
                 }
                 node = node.Previous;
             }