Add a couple more ignores

Author: srujzs

example/web/main.dart

@@ -5,6 +5,8 @@
 import 'dart:async';
 import 'dart:convert';
 import 'dart:developer';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
 
 void main() {

fixtures/_experimentSound/web/main.dart

@@ -4,6 +4,8 @@
 
 import 'dart:async';
 import 'dart:core';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
 
 void main() {

fixtures/_testCircular2Sound/web/main.dart

@@ -4,6 +4,8 @@
 
 import 'dart:async';
 import 'dart:core';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
 
 import 'package:_test_circular1_sound/library1.dart';

fixtures/_testHotRestart2Sound/web/main.dart

@@ -3,6 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:core';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
 
 import 'package:_test_hot_restart1/library1.dart';

fixtures/_testPackageSound/web/main.dart

@@ -6,6 +6,8 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:core';
 import 'dart:developer';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
 
 import 'package:_test_package_sound/test_library.dart';

fixtures/_testSound/example/append_body/main.dart

@@ -4,6 +4,8 @@
 
 import 'dart:async';
 import 'dart:developer';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
 
 void main() {

fixtures/_testSound/example/hello_world/main.dart

@@ -6,7 +6,11 @@ import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:developer';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:html';
+// TODO: https://github.com/dart-lang/webdev/issues/2508
+// ignore: deprecated_member_use
 import 'dart:js';
 
 import 'package:intl/intl.dart';