Move AnimatedIcons example and fix typo in cupertino/text_selection_toolbar.dart (#113937)

examples/api/test/material/animated_icon/animated_icons_data.0_test.dart

@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 import 'package:flutter/material.dart';
-import 'package:flutter_api_samples/material/animated_icon/animated_icon.1.dart'
+import 'package:flutter_api_samples/material/animated_icon/animated_icons_data.0.dart'
     as example;
 import 'package:flutter_test/flutter_test.dart';
 

packages/flutter/lib/src/cupertino/text_selection_toolbar.dart

@@ -869,7 +869,7 @@ class _RenderCupertinoTextSelectionToolbarItems extends RenderBox with Container
     }
   }
 
-  // Returns true iff the single child is hit by the given position.
+  // Returns true if the single child is hit by the given position.
   static bool hitTestChild(RenderBox? child, BoxHitTestResult result, { required Offset position }) {
     if (child == null) {
       return false;

packages/flutter/lib/src/material/animated_icons/animated_icons.dart

@@ -22,13 +22,6 @@ part of material_animated_icons;
 /// ** See code in examples/api/lib/material/animated_icon/animated_icon.0.dart **
 /// {@end-tool}
 ///
-/// {@tool dartpad}
-/// This example showcases all the available [AnimatedIcons] in a [GridView].
-/// The icons are animated forward and reverse in a loop.
-///
-/// ** See code in examples/api/lib/material/animated_icon/animated_icon.1.dart **
-/// {@end-tool}
-///
 /// See also:
 ///
 ///  * [Icons], for the list of available static Material Icons.

packages/flutter/lib/src/material/animated_icons/animated_icons_data.dart

@@ -13,6 +13,17 @@ part of material_animated_icons;
 /// Identifier for the supported Material Design animated icons.
 ///
 /// Use with [AnimatedIcon] class to show specific animated icons.
+///
+/// {@tool dartpad}
+/// This example shows how to create an animated icon. The icon is animated
+/// forward and reverse in a loop.
+///
+/// ** See code in examples/api/lib/material/animated_icon/animated_icons_data.0.dart **
+/// {@end-tool}
+///
+/// See also:
+///
+///  * [Icons], for the list of available static Material Icons.
 abstract class AnimatedIcons {
 
   /// The Material Design add to event icon animation.