experimental/context_menus: Update analysis_options.yaml (#1579)

experimental/context_menus/test/anywhere_page_test.dart

@@ -1,12 +1,11 @@
+import 'package:context_menus/anywhere_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/anywhere_page.dart';
-
 void main() {
-  testWidgets('Right click works outside of text', (WidgetTester tester) async {
+  testWidgets('Right click works outside of text', (tester) async {
     await tester.pumpWidget(const MyApp());
 
     // Navigate to the AnywherePage example.

experimental/context_menus/test/cascading_menu_page_test.dart

@@ -1,14 +1,13 @@
+import 'package:context_menus/cascading_menu_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/cascading_menu_page.dart';
-
 void main() {
   testWidgets('Can show and use the cascading menu',
-      (WidgetTester tester) async {
+      (tester) async {
     await tester.pumpWidget(const MyApp());
 
     // Navigate to the CascadingMenuPage example.

experimental/context_menus/test/custom_buttons_page_test.dart

@@ -1,15 +1,14 @@
+import 'package:context_menus/custom_buttons_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/custom_buttons_page.dart';
-
 void main() {
   testWidgets('Shows custom buttons in the built-in context menu',
-      (WidgetTester tester) async {
+      (tester) async {
     await tester.pumpWidget(const MyApp());
 
     // Navigate to the CustomButtonsPage example.

experimental/context_menus/test/default_values_page_test.dart

@@ -1,15 +1,14 @@
+import 'package:context_menus/default_values_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/default_values_page.dart';
-
 void main() {
   testWidgets('Gives correct behavior for all values of contextMenuBuilder',
-      (WidgetTester tester) async {
+      (tester) async {
     await tester.pumpWidget(const MyApp());
 
     // Navigate to the DefaultValuesPage example.

experimental/context_menus/test/email_button_page_test.dart

@@ -1,3 +1,5 @@
+import 'package:context_menus/email_button_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
@@ -5,14 +7,11 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/email_button_page.dart';
-
 import 'utils.dart';
 
 void main() {
   testWidgets('Selecting the email address shows a custom button',
-      (WidgetTester tester) async {
+      (tester) async {
     await tester.pumpWidget(const MyApp());
 
     // Navigate to the EmailButtonPage example.

experimental/context_menus/test/field_types_page_test.dart

@@ -1,16 +1,15 @@
+import 'package:context_menus/field_types_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/field_types_page.dart';
-
 void main() {
   testWidgets(
     'Gives correct behavior for all values of contextMenuBuilder',
-    (WidgetTester tester) async {
+    (tester) async {
       await tester.pumpWidget(const MyApp());
 
       // Navigate to the FieldTypesPage example.

experimental/context_menus/test/global_selection_page_test.dart

@@ -1,13 +1,12 @@
+import 'package:context_menus/global_selection_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/global_selection_page.dart';
-
 void main() {
   testWidgets('Gives correct behavior for all values of contextMenuBuilder',
-      (WidgetTester tester) async {
+      (tester) async {
     await tester.pumpWidget(const MyApp());
 
     // Navigate to the GlobalSelectionPage example.

experimental/context_menus/test/image_page_test.dart

@@ -1,14 +1,13 @@
+import 'package:context_menus/image_page.dart';
+import 'package:context_menus/main.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:context_menus/main.dart';
-import 'package:context_menus/image_page.dart';
-
 void main() {
   testWidgets(
     'Gives correct behavior for all values of contextMenuBuilder',
-    (WidgetTester tester) async {
+    (tester) async {
       await tester.pumpWidget(const MyApp());
 
       // Navigate to the ImagePage example.

experimental/context_menus/test/utils.dart

@@ -37,7 +37,7 @@ Offset textOffsetToPosition(WidgetTester tester, int offset) {
 
 List<TextSelectionPoint> globalize(
     Iterable<TextSelectionPoint> points, RenderBox box) {
-  return points.map<TextSelectionPoint>((TextSelectionPoint point) {
+  return points.map<TextSelectionPoint>((point) {
     return TextSelectionPoint(
       box.localToGlobal(point.point),
       point.direction,