fix lints (#82246)

dev/integration_tests/web/lib/framework_stack_trace.dart

@@ -4,10 +4,9 @@
 
 import 'dart:html' as html;
 
-import 'package:meta/dart2js.dart';
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
+import 'package:meta/dart2js.dart';
 
 // Tests that the framework prints stack traces in all build modes.
 //
@@ -66,7 +65,7 @@ class ThrowingWidget extends StatefulWidget {
   const ThrowingWidget({Key? key}) : super(key: key);
 
   @override
-  _ThrowingWidgetState createState() => _ThrowingWidgetState();
+  State<ThrowingWidget> createState() => _ThrowingWidgetState();
 }
 
 class _ThrowingWidgetState extends State<ThrowingWidget> {

dev/integration_tests/web/lib/stack_trace.dart

@@ -6,9 +6,8 @@ import 'dart:html' as html;
 import 'dart:ui';
 
 import 'package:collection/collection.dart';
-import 'package:meta/dart2js.dart';
-
 import 'package:flutter/foundation.dart';
+import 'package:meta/dart2js.dart';
 
 /// Expected sequence of method calls.
 const List<String> callChain = <String>['baz', 'bar', 'foo'];
@@ -34,7 +33,7 @@ const List<StackFrame> expectedDebugStackFrames = <StackFrame>[
     packageScheme: 'package',
     package: 'packages',
     packagePath: 'web_integration/stack_trace.dart',
-    line: 121,
+    line: 120,
     column: 3,
     className: '<unknown>',
     method: 'baz',
@@ -45,7 +44,7 @@ const List<StackFrame> expectedDebugStackFrames = <StackFrame>[
     packageScheme: 'package',
     package: 'packages',
     packagePath: 'web_integration/stack_trace.dart',
-    line: 116,
+    line: 115,
     column: 3,
     className: '<unknown>',
     method: 'bar',
@@ -56,7 +55,7 @@ const List<StackFrame> expectedDebugStackFrames = <StackFrame>[
     packageScheme: 'package',
     package: 'packages',
     packagePath: 'web_integration/stack_trace.dart',
-    line: 111,
+    line: 110,
     column: 3,
     className: '<unknown>',
     method: 'foo',