Fix references in examples (#151204)

Part of https://github.com/flutter/flutter/issues/150800

examples/api/lib/material/carousel/carousel.0.dart

@@ -4,7 +4,7 @@
 
 import 'package:flutter/material.dart';
 
-/// Flutter code sample for [Carousel].
+/// Flutter code sample for [CarouselView].
 
 void main() => runApp(const CarouselExampleApp());
 

examples/api/lib/material/choice_chip/choice_chip.0.dart

@@ -4,7 +4,7 @@
 
 import 'package:flutter/material.dart';
 
-/// Flutter code sample for [ActionChoice].
+/// Flutter code sample for [ChoiceChip].
 
 void main() => runApp(const ChipApp());
 

examples/api/lib/widgets/animated_grid/animated_grid.0.dart

@@ -138,7 +138,7 @@ typedef RemovedItemBuilder<T> = Widget Function(T item, BuildContext context, An
 /// This class only exposes as much of the Dart List API as is needed by the
 /// sample app. More list methods are easily added, however methods that
 /// mutate the list must make the same changes to the animated list in terms
-/// of [AnimatedGridState.insertItem] and [AnimatedGrid.removeItem].
+/// of [AnimatedGridState.insertItem] and [AnimatedGridState.removeItem].
 class ListModel<E> {
   ListModel({
     required this.listKey,

examples/api/lib/widgets/animated_list/animated_list.0.dart

@@ -122,7 +122,7 @@ typedef RemovedItemBuilder<T> = Widget Function(T item, BuildContext context, An
 /// This class only exposes as much of the Dart List API as is needed by the
 /// sample app. More list methods are easily added, however methods that
 /// mutate the list must make the same changes to the animated list in terms
-/// of [AnimatedListState.insertItem] and [AnimatedList.removeItem].
+/// of [AnimatedListState.insertItem] and [AnimatedListState.removeItem].
 class ListModel<E> {
   ListModel({
     required this.listKey,

examples/api/lib/widgets/binding/widget_binding_observer.0.dart

@@ -4,7 +4,7 @@
 
 import 'package:flutter/material.dart';
 
-/// Flutter code sample for [WidgetBindingsObserver].
+/// Flutter code sample for [WidgetsBindingObserver].
 
 void main() => runApp(const WidgetBindingObserverExampleApp());
 

examples/api/lib/widgets/editable_text/editable_text.on_content_inserted.0.dart

@@ -6,7 +6,7 @@ import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
 
-/// Flutter code sample for [EditableText.onContentInserted].
+/// Flutter code sample for [EditableText.contentInsertionConfiguration].
 
 void main() => runApp(const KeyboardInsertedContentApp());
 

examples/api/lib/widgets/scroll_position/is_scrolling_listener.0.dart

@@ -5,7 +5,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 
-/// Flutter code sample for [IsScrollingListener].
+/// Flutter code sample for [ScrollPosition.isScrollingNotifier].
 void main() {
   runApp(const IsScrollingListenerApp());
 }