Add menu item affix for rendering deprecation warning in material menu.

Add deprecation icon to deprecated filter items.

PiperOrigin-RevId: 259425716

Author: Googler

angular_components/lib/material_menu/menu_item_groups.html

@@ -88,7 +88,7 @@
             </span>
           </span>
           <menu-item-affix-list
-              *ngIf="item.itemSuffixes.isNotEmpty"
+              *ngIf="item.hasVisibleSuffixes"
               class="suffix-list"
               [disabled]="!item.enabled"
               [items]="item.itemSuffixes">

angular_components/lib/model/menu/delegating_menu_item.dart

@@ -77,4 +77,7 @@ class DelegatingMenuItem<SubMenuType> implements MenuItem<SubMenuType> {
 
   @override
   String get secondaryLabel => _delegate.secondaryLabel;
+
+  @override
+  bool get hasVisibleSuffixes => _delegate.hasVisibleSuffixes;
 }

angular_components/lib/model/menu/menu.dart

@@ -203,6 +203,12 @@ class MenuItem<T> with MenuItemMixin implements HasUIDisplayName, HasIcon {
         'Only one of itemSuffix or itemSuffixes should be provided');
   }
 
+  /// True if any of the [itemSuffixes] are rendered.
+  ///
+  /// Rendered suffixes include those that are visible on hover. Hidden suffixes
+  /// are excluded.
+  bool get hasVisibleSuffixes => itemSuffixes.any((suffix) => suffix.isVisible);
+
   @override
   String toString() => {
         'label': label,

angular_components/lib/model/menu/selectable_menu.dart

@@ -204,6 +204,13 @@ class SelectableMenuItem<ItemType> extends PropertyChangeNotifier
     _selectableState = value;
     notifyPropertyChange(#selectableState, _selectableState, value);
   }
+
+  /// True if any of the [itemSuffixes] are rendered.
+  ///
+  /// Rendered suffixes include those that are visible on hover. Hidden suffixes
+  /// are excluded.
+  @override
+  bool get hasVisibleSuffixes => itemSuffixes.any((suffix) => suffix.isVisible);
 }
 
 void _noOp() {}