Remove uses of deprecated constants and change int.parse to int.tryParse (#19575)

* Remove uses of deprecated constants
* Change int.parse to int.tryParse where appropriate

dev/automated_tests/test_smoke_test/crash1_test.dart

@@ -11,7 +11,7 @@ import 'package:flutter_test/flutter_test.dart';
 
 void main() {
   test('test smoke test -- this test should fail', () async {
-    if (system.Process.killPid(system.pid, system.ProcessSignal.SIGSEGV)) { // ignore: deprecated_member_use
+    if (system.Process.killPid(system.pid, system.ProcessSignal.sigsegv)) {
       print('system.Process.killPid returned before the process ended!');
       print('Sleeping for a few seconds just in case signal delivery is delayed or our signal handler is being slow...');
       system.sleep(const Duration(seconds: 10)); // don't sleep too much, we must not time out

dev/automated_tests/test_smoke_test/crash2_test.dart

@@ -8,5 +8,5 @@ import 'dart:io' as system;
 // see //flutter/dev/bots/test.dart
 
 void main() {
-  system.Process.killPid(system.pid, system.ProcessSignal.SIGSEGV); // ignore: deprecated_member_use
+  system.Process.killPid(system.pid, system.ProcessSignal.sigsegv);
 }

dev/bots/analyze-sample-code.dart

@@ -240,10 +240,10 @@ dependencies:
           throw 'failed to parse error message: $error';
         }
         final String column = error.substring(colon2 + kColon.length, bullet2);
-        // ignore: deprecated_member_use
-        final int lineNumber = int.parse(line, radix: 10, onError: (String source) => throw 'failed to parse error message: $error');
-        // ignore: deprecated_member_use
-        final int columnNumber = int.parse(column, radix: 10, onError: (String source) => throw 'failed to parse error message: $error');
+
+        final int lineNumber = int.tryParse(line, radix: 10);
+
+        final int columnNumber = int.tryParse(column, radix: 10);
         if (lineNumber == null) {
           throw 'failed to parse error message: $error';
         }

dev/devicelab/bin/tasks/gradle_plugin_test.dart

@@ -176,8 +176,8 @@ class FlutterProject {
     final File buildScript = new File(
       path.join(androidPath, 'app', 'build.gradle'),
     );
-    // ignore: deprecated_member_use
-    buildScript.openWrite(mode: FileMode.APPEND).write('''
+
+    buildScript.openWrite(mode: FileMode.append).write('''
 
 android {
     buildTypes {
@@ -193,8 +193,8 @@ android {
     final File buildScript = new File(
       path.join(androidPath, 'app', 'build.gradle'),
     );
-    // ignore: deprecated_member_use
-    buildScript.openWrite(mode: FileMode.APPEND).write('''
+
+    buildScript.openWrite(mode: FileMode.append).write('''
 
 android {
     flavorDimensions "mode"

dev/devicelab/lib/framework/ios.dart

@@ -52,7 +52,7 @@ Future<Null> _patchXcconfigFilesIfNotPatched(String flutterProjectPath) async {
       final String contents = await file.readAsString();
       final bool alreadyPatched = contents.contains(include);
       if (!alreadyPatched) {
-        final IOSink patchOut = file.openWrite(mode: FileMode.APPEND); // ignore: deprecated_member_use
+        final IOSink patchOut = file.openWrite(mode: FileMode.append);
         patchOut.writeln(); // in case EOF is not preceded by line break
         patchOut.writeln(include);
         await patchOut.close();

dev/devicelab/lib/framework/runner.dart

@@ -73,14 +73,14 @@ Future<Map<String, dynamic>> runTask(String taskName, { bool silent = false }) a
     await runner.exitCode.timeout(const Duration(seconds: 1));
     return taskResult;
   } on TimeoutException catch (timeout) {
-    runner.kill(ProcessSignal.SIGINT); // ignore: deprecated_member_use
+    runner.kill(ProcessSignal.sigint);
     return <String, dynamic>{
       'success': false,
       'reason': 'Timeout waiting for $waitingFor: ${timeout.message}',
     };
   } finally {
     if (!runnerFinished)
-      runner.kill(ProcessSignal.SIGKILL); // ignore: deprecated_member_use
+      runner.kill(ProcessSignal.sigkill);
     await stdoutSub.cancel();
     await stderrSub.cancel();
   }

dev/devicelab/lib/tasks/microbenchmarks.dart

@@ -124,8 +124,8 @@ Future<Map<String, double>> _readJsonResults(Process process) {
       jsonStarted = false;
       processWasKilledIntentionally = true;
       resultsHaveBeenParsed = true;
-      // ignore: deprecated_member_use
-      process.kill(ProcessSignal.SIGINT); // flutter run doesn't quit automatically
+
+      process.kill(ProcessSignal.sigint); // flutter run doesn't quit automatically
       try {
         completer.complete(new Map<String, double>.from(json.decode(jsonOutput)));
       } catch (ex) {

packages/flutter_driver/lib/src/driver/driver.dart

@@ -373,7 +373,7 @@ class FlutterDriver {
     if (_logCommunicationToFile) {
       final f.File file = fs.file(p.join(testOutputsDirectory, 'flutter_driver_commands_$_driverId.log'));
       file.createSync(recursive: true); // no-op if file exists
-      file.writeAsStringSync('${new DateTime.now()} $message\n', mode: f.FileMode.APPEND, flush: true); // ignore: deprecated_member_use
+      file.writeAsStringSync('${new DateTime.now()} $message\n', mode: f.FileMode.append, flush: true);
     }
   }
 

packages/flutter_goldens/lib/flutter_goldens.dart

@@ -236,8 +236,8 @@ class GoldensClient {
   Future<void> _obtainLock() async {
     final File lockFile = flutterRoot.childFile(fs.path.join('bin', 'cache', 'goldens.lockfile'));
     await lockFile.create(recursive: true);
-    _lock = await lockFile.open(mode: io.FileMode.WRITE); // ignore: deprecated_member_use
-    await _lock.lock(io.FileLock.BLOCKING_EXCLUSIVE); // ignore: deprecated_member_use
+    _lock = await lockFile.open(mode: io.FileMode.write);
+    await _lock.lock(io.FileLock.blockingExclusive);
   }
 
   Future<void> _releaseLock() async {

packages/flutter_tools/lib/src/android/android_device.dart

@@ -210,8 +210,8 @@ class AndroidDevice extends Device {
       // Sample output: '22'
       final String sdkVersion = await _getProperty('ro.build.version.sdk');
 
-      // ignore: deprecated_member_use
-      final int sdkVersionParsed = int.parse(sdkVersion, onError: (String source) => null);
+
+      final int sdkVersionParsed = int.tryParse(sdkVersion);
       if (sdkVersionParsed == null) {
         printError('Unexpected response from getprop: "$sdkVersion"');
         return false;
@@ -822,8 +822,8 @@ class _AndroidDevicePortForwarder extends DevicePortForwarder {
   final AndroidDevice device;
 
   static int _extractPort(String portString) {
-    // ignore: deprecated_member_use
-    return int.parse(portString.trim(), onError: (_) => null);
+
+    return int.tryParse(portString.trim());
   }
 
   @override

packages/flutter_tools/lib/src/asset.dart

@@ -80,7 +80,7 @@ class _ManifestAssetBundle implements AssetBundle {
       return true;
 
     final FileStat stat = fs.file(manifestPath).statSync();
-    if (stat.type == FileSystemEntityType.NOT_FOUND) // ignore: deprecated_member_use
+    if (stat.type == FileSystemEntityType.notFound)
       return true;
 
     return stat.modified.isAfter(_lastBuildTimestamp);

packages/flutter_tools/lib/src/base/file_system.dart

@@ -104,15 +104,15 @@ void copyDirectorySync(Directory srcDir, Directory destDir, [void onFileCopied(F
 Directory getRecordingSink(String dirname, String basename) {
   final String location = _kLocalFs.path.join(dirname, basename);
   switch (_kLocalFs.typeSync(location, followLinks: false)) {
-    case FileSystemEntityType.FILE: // ignore: deprecated_member_use
-    case FileSystemEntityType.LINK: // ignore: deprecated_member_use
+    case FileSystemEntityType.file:
+    case FileSystemEntityType.link:
       throwToolExit('Invalid record-to location: $dirname ("$basename" exists as non-directory)');
       break;
-    case FileSystemEntityType.DIRECTORY: // ignore: deprecated_member_use
+    case FileSystemEntityType.directory:
       if (_kLocalFs.directory(location).listSync(followLinks: false).isNotEmpty)
         throwToolExit('Invalid record-to location: $dirname ("$basename" is not empty)');
       break;
-    case FileSystemEntityType.NOT_FOUND: // ignore: deprecated_member_use
+    case FileSystemEntityType.notFound:
       _kLocalFs.directory(location).createSync(recursive: true);
   }
   return _kLocalFs.directory(location);

packages/flutter_tools/lib/src/base/io.dart

@@ -41,7 +41,7 @@ export 'dart:io'
         exitCode,
         // File              NO! Use `file_system.dart`
         // FileSystemEntity  NO! Use `file_system.dart`
-        GZIP, // ignore: deprecated_member_use
+        gzip,
         HandshakeException,
         HttpClient,
         HttpClientRequest,
@@ -71,7 +71,7 @@ export 'dart:io'
         // stdout,           NO! Use `io.dart`
         Socket,
         SocketException,
-        SYSTEM_ENCODING, // ignore: deprecated_member_use
+        systemEncoding,
         WebSocket,
         WebSocketException,
         WebSocketTransformer;

packages/flutter_tools/lib/src/base/process.dart

@@ -213,7 +213,7 @@ Future<Process> runDetached(List<String> cmd) {
   _traceCommand(cmd);
   final Future<Process> proc = processManager.start(
     cmd,
-    mode: ProcessStartMode.DETACHED, // ignore: deprecated_member_use
+    mode: ProcessStartMode.detached,
   );
   return proc;
 }

packages/flutter_tools/lib/src/cache.dart

@@ -74,7 +74,7 @@ class Cache {
     if (!_lockEnabled)
       return null;
     assert(_lock == null);
-    _lock = await fs.file(fs.path.join(flutterRoot, 'bin', 'cache', 'lockfile')).open(mode: FileMode.WRITE); // ignore: deprecated_member_use
+    _lock = await fs.file(fs.path.join(flutterRoot, 'bin', 'cache', 'lockfile')).open(mode: FileMode.write);
     bool locked = false;
     bool printed = false;
     while (!locked) {

packages/flutter_tools/lib/src/commands/analyze_base.dart

@@ -26,7 +26,7 @@ abstract class AnalyzeBase {
   void dumpErrors(Iterable<String> errors) {
     if (argResults['write'] != null) {
       try {
-        final RandomAccessFile resultsFile = fs.file(argResults['write']).openSync(mode: FileMode.WRITE); // ignore: deprecated_member_use
+        final RandomAccessFile resultsFile = fs.file(argResults['write']).openSync(mode: FileMode.write);
         try {
           resultsFile.lockSync();
           resultsFile.writeStringSync(errors.join('\n'));

packages/flutter_tools/lib/src/commands/analyze_once.dart

@@ -47,9 +47,9 @@ class AnalyzeOnce extends AnalyzeBase {
       for (String directory in directories) {
         final FileSystemEntityType type = fs.typeSync(directory);
 
-        if (type == FileSystemEntityType.NOT_FOUND) { // ignore: deprecated_member_use
+        if (type == FileSystemEntityType.notFound) {
           throwToolExit("'$directory' does not exist");
-        } else if (type != FileSystemEntityType.DIRECTORY) { // ignore: deprecated_member_use
+        } else if (type != FileSystemEntityType.directory) {
           throwToolExit("'$directory' is not a directory");
         }
       }

packages/flutter_tools/lib/src/commands/create.dart

@@ -453,12 +453,12 @@ String _validateProjectDir(String dirPath, { String flutterRoot }) {
 
   final FileSystemEntityType type = fs.typeSync(dirPath);
 
-  if (type != FileSystemEntityType.NOT_FOUND) { // ignore: deprecated_member_use
+  if (type != FileSystemEntityType.notFound) {
     switch (type) {
-      case FileSystemEntityType.FILE: // ignore: deprecated_member_use
+      case FileSystemEntityType.file:
         // Do not overwrite files.
         return "Invalid project name: '$dirPath' - file exists.";
-      case FileSystemEntityType.LINK: // ignore: deprecated_member_use
+      case FileSystemEntityType.link:
         // Do not overwrite links.
         return "Invalid project name: '$dirPath' - refers to a link.";
     }

packages/flutter_tools/lib/src/commands/drive.dart

@@ -94,7 +94,7 @@ class DriveCommand extends RunCommandBase {
     if (device == null)
       throwToolExit(null);
 
-    if (await fs.type(testFile) != FileSystemEntityType.FILE) // ignore: deprecated_member_use
+    if (await fs.type(testFile) != FileSystemEntityType.file)
       throwToolExit('Test file not found: $testFile');
 
     String observatoryUri;
@@ -225,7 +225,7 @@ void restoreAppStarter() {
 
 Future<LaunchResult> _startApp(DriveCommand command) async {
   final String mainPath = findMainDartFile(command.targetFile);
-  if (await fs.type(mainPath) != FileSystemEntityType.FILE) { // ignore: deprecated_member_use
+  if (await fs.type(mainPath) != FileSystemEntityType.file) {
     printError('Tried to run $mainPath, but that file does not exist.');
     return null;
   }

packages/flutter_tools/lib/src/commands/fuchsia_reload.dart

@@ -27,7 +27,7 @@ import '../vmservice.dart';
 // $ flutter fuchsia_reload -f ~/fuchsia -a 192.168.1.39 \
 //       -g //lib/flutter/examples/flutter_gallery:flutter_gallery
 
-final String ipv4Loopback = InternetAddress.LOOPBACK_IP_V4.address; // ignore: deprecated_member_use
+final String ipv4Loopback = InternetAddress.loopbackIPv4.address;
 
 class FuchsiaReloadCommand extends FlutterCommand {
   FuchsiaReloadCommand() {
@@ -386,8 +386,8 @@ class FuchsiaReloadCommand extends FlutterCommand {
         final int lastSpace = trimmed.lastIndexOf(' ');
         final String lastWord = trimmed.substring(lastSpace + 1);
         if ((lastWord != '.') && (lastWord != '..')) {
-          // ignore: deprecated_member_use
-          final int value = int.parse(lastWord, onError: (_) => null);
+
+          final int value = int.tryParse(lastWord);
           if (value != null)
             ports.add(value);
         }

packages/flutter_tools/lib/src/commands/ide_config.dart

@@ -261,9 +261,9 @@ class IdeConfigCommand extends FlutterCommand {
 String _validateFlutterDir(String dirPath, {String flutterRoot}) {
   final FileSystemEntityType type = fs.typeSync(dirPath);
 
-  if (type != FileSystemEntityType.NOT_FOUND) { // ignore: deprecated_member_use
+  if (type != FileSystemEntityType.notFound) {
     switch (type) {
-      case FileSystemEntityType.LINK: // ignore: deprecated_member_use
+      case FileSystemEntityType.link:
         // Do not overwrite links.
         return "Invalid project root dir: '$dirPath' - refers to a link.";
     }

packages/flutter_tools/lib/src/commands/update_packages.dart

@@ -785,8 +785,8 @@ class PubspecChecksum extends PubspecLine {
     if (twoLines.length != 2) {
       return new PubspecChecksum(-1, line);
     }
-    // ignore: deprecated_member_use
-    final int value = int.parse(twoLines.last.trim(), radix: 16, onError: (String _) => -1);
+
+    final int value = int.tryParse(twoLines.last.trim(), radix: 16) ?? -1;
     return new PubspecChecksum(value, line);
   }
 }

packages/flutter_tools/lib/src/dependency_checker.dart

@@ -30,7 +30,7 @@ class DependencyChecker {
     for (String path in _dependencies) {
       final File file = fs.file(path);
       final FileStat stat = file.statSync();
-      if (stat.type == FileSystemEntityType.NOT_FOUND) { // ignore: deprecated_member_use
+      if (stat.type == FileSystemEntityType.notFound) {
         printTrace('DependencyChecker: Error stating $path.');
         return true;
       }

packages/flutter_tools/lib/src/devfs.dart

@@ -46,7 +46,7 @@ abstract class DevFSContent {
   Stream<List<int>> contentsAsStream();
 
   Stream<List<int>> contentsAsCompressedStream() {
-    return contentsAsStream().transform(GZIP.encoder); // ignore: deprecated_member_use
+    return contentsAsStream().transform(gzip.encoder);
   }
 
   /// Return the list of files this content depends on.
@@ -86,7 +86,7 @@ class DevFSFileContent extends DevFSContent {
       return;
     }
     _fileStat = file.statSync();
-    if (_fileStat.type == FileSystemEntityType.LINK) { // ignore: deprecated_member_use
+    if (_fileStat.type == FileSystemEntityType.link) {
       // Resolve, stat, and maybe cache the symlink target.
       final String resolved = file.resolveSymbolicLinksSync();
       final FileSystemEntity linkTarget = fs.file(resolved);
@@ -666,7 +666,7 @@ class DevFS {
           try {
             final FileSystemEntityType linkType =
                 fs.statSync(file.resolveSymbolicLinksSync()).type;
-            if (linkType == FileSystemEntityType.DIRECTORY) // ignore: deprecated_member_use
+            if (linkType == FileSystemEntityType.directory)
               continue;
           } on FileSystemException catch (e) {
             _printScanDirectoryError(file.path, e);

packages/flutter_tools/lib/src/ios/mac.dart

@@ -582,7 +582,7 @@ void _copyServiceDefinitionsManifest(List<Map<String, String>> services, File ma
     'framework': fs.path.basenameWithoutExtension(service['ios-framework'])
   }).toList();
   final Map<String, dynamic> jsonObject = <String, dynamic>{ 'services' : jsonServices };
-  manifest.writeAsStringSync(json.encode(jsonObject), mode: FileMode.WRITE, flush: true); // ignore: deprecated_member_use
+  manifest.writeAsStringSync(json.encode(jsonObject), mode: FileMode.write, flush: true);
 }
 
 Future<bool> upgradePbxProjWithFlutterAssets(String app, String appPath) async {

packages/flutter_tools/lib/src/ios/simulators.dart

@@ -435,7 +435,7 @@ class IOSSimulator extends Device {
   void clearLogs() {
     final File logFile = fs.file(logFilePath);
     if (logFile.existsSync()) {
-      final RandomAccessFile randomFile = logFile.openSync(mode: FileMode.WRITE); // ignore: deprecated_member_use
+      final RandomAccessFile randomFile = logFile.openSync(mode: FileMode.write);
       randomFile.truncateSync(0);
       randomFile.closeSync();
     }

packages/flutter_tools/lib/src/services.dart

@@ -105,6 +105,6 @@ File generateServiceDefinitions(
 
   final Map<String, dynamic> jsonObject = <String, dynamic>{ 'services': services };
   final File servicesFile = fs.file(fs.path.join(dir, 'services.json'));
-  servicesFile.writeAsStringSync(json.encode(jsonObject), mode: FileMode.WRITE, flush: true); // ignore: deprecated_member_use
+  servicesFile.writeAsStringSync(json.encode(jsonObject), mode: FileMode.write, flush: true);
   return servicesFile;
 }

packages/flutter_tools/lib/src/test/flutter_platform.dart

@@ -52,8 +52,8 @@ const String _kProjectRootSentinel = 'pubspec.yaml';
 /// The address at which our WebSocket server resides and at which the sky_shell
 /// processes will host the Observatory server.
 final Map<InternetAddressType, InternetAddress> _kHosts = <InternetAddressType, InternetAddress>{
-  InternetAddressType.IP_V4: InternetAddress.LOOPBACK_IP_V4, // ignore: deprecated_member_use
-  InternetAddressType.IP_V6: InternetAddress.LOOPBACK_IP_V6, // ignore: deprecated_member_use
+  InternetAddressType.IPv4: InternetAddress.loopbackIPv4,
+  InternetAddressType.IPv6: InternetAddress.loopbackIPv6,
 };
 
 /// Configure the `test` package to work with Flutter.
@@ -73,7 +73,7 @@ void installHook({
   bool trackWidgetCreation = false,
   bool updateGoldens = false,
   int observatoryPort,
-  InternetAddressType serverType = InternetAddressType.IP_V4, // ignore: deprecated_member_use
+  InternetAddressType serverType = InternetAddressType.IPv4,
 }) {
   assert(!enableObservatory || (!startPaused && observatoryPort == null));
   hack.registerPlatformPlugin(
@@ -120,7 +120,7 @@ String generateTestBootstrap({
   assert(host != null);
   assert(updateGoldens != null);
 
-  final String websocketUrl = host.type == InternetAddressType.IP_V4 // ignore: deprecated_member_use
+  final String websocketUrl = host.type == InternetAddressType.IPv4
       ? 'ws://${host.address}'
       : 'ws://[${host.address}]';
   final String encodedWebsocketUrl = Uri.encodeComponent(websocketUrl);
@@ -796,7 +796,7 @@ class _FlutterPlatform extends PlatformPlugin {
     } else {
       command.add('--disable-observatory');
     }
-    if (host.type == InternetAddressType.IP_V6) // ignore: deprecated_member_use
+    if (host.type == InternetAddressType.IPv6)
       command.add('--ipv6');
     if (bundlePath != null) {
       command.add('--flutter-assets-dir=$bundlePath');

packages/flutter_tools/lib/src/test/runner.dart

@@ -78,7 +78,7 @@ Future<int> runTests(
     throwToolExit('Cannot find Flutter shell at $shellPath');
 
   final InternetAddressType serverType =
-      ipv6 ? InternetAddressType.IP_V6 : InternetAddressType.IP_V4; // ignore: deprecated_member_use
+      ipv6 ? InternetAddressType.IPv6 : InternetAddressType.IPv4;
 
   loader.installHook(
     shellPath: shellPath,

packages/flutter_tools/lib/src/version.dart

@@ -534,10 +534,7 @@ class GitTagVersion {
       printTrace('Could not interpret results of "git describe": $version');
       return const GitTagVersion.unknown();
     }
-    final List<int> parsedParts = parts.take(4).map<int>(
-      // ignore: deprecated_member_use
-      (String value) => int.parse(value, onError: (String value) => null),
-    ).toList();
+    final List<int> parsedParts = parts.take(4).map<int>(int.tryParse).toList();
     return new GitTagVersion(parsedParts[0], parsedParts[1], parsedParts[2], parsedParts[3], parts[4]);
   }
 

packages/flutter_tools/lib/src/vmservice.dart

@@ -1402,7 +1402,7 @@ class ServiceMap extends ServiceObject implements Map<String, dynamic> {
   Iterable<MapEntry<String, dynamic>> get entries => _map.entries;
   @override
   void updateAll(dynamic update(String key, dynamic value)) => _map.updateAll(update);
-  Map<RK, RV> retype<RK, RV>() => _map.cast<RK, RV>(); // ignore: deprecated_member_use,annotate_overrides
+  Map<RK, RV> retype<RK, RV>() => _map.cast<RK, RV>(); // ignore: annotate_overrides
   @override
   dynamic update(String key, dynamic update(dynamic value), {dynamic ifAbsent()}) => _map.update(key, update, ifAbsent: ifAbsent);
 }

packages/flutter_tools/test/base/io_test.dart

@@ -26,7 +26,7 @@ void main() {
     });
 
     testUsingContext('toString() works', () async {
-      expect(io.ProcessSignal.SIGINT.toString(), ProcessSignal.SIGINT.toString()); // ignore: deprecated_member_use
+      expect(io.ProcessSignal.sigint.toString(), ProcessSignal.SIGINT.toString());
     });
   });
 }

packages/flutter_tools/test/cache_test.dart

@@ -124,7 +124,7 @@ class MockFileSystem extends ForwardingFileSystem {
 
 class MockFile extends Mock implements File {
   @override
-  Future<RandomAccessFile> open({FileMode mode = FileMode.READ}) async { // ignore: deprecated_member_use
+  Future<RandomAccessFile> open({FileMode mode = FileMode.read}) async {
     return new MockRandomAccessFile();
   }
 }

packages/flutter_tools/test/commands/create_test.dart

@@ -563,7 +563,7 @@ class LoggingProcessManager extends LocalProcessManager {
       Map<String, String> environment,
       bool includeParentEnvironment = true,
       bool runInShell = false,
-      ProcessStartMode mode = ProcessStartMode.NORMAL, // ignore: deprecated_member_use
+      ProcessStartMode mode = ProcessStartMode.normal,
     }) {
     commands.add(command);
     return super.start(

packages/flutter_tools/test/commands/devices_test.dart

@@ -48,8 +48,8 @@ class MockProcessManager extends Mock implements ProcessManager {
         Map<String, String> environment,
         bool includeParentEnvironment = true,
         bool runInShell = false,
-        Encoding stdoutEncoding = SYSTEM_ENCODING, // ignore: deprecated_member_use
-        Encoding stderrEncoding = SYSTEM_ENCODING, // ignore: deprecated_member_use
+        Encoding stdoutEncoding = systemEncoding,
+        Encoding stderrEncoding = systemEncoding,
       }) async {
     return new ProcessResult(0, 0, '', '');
   }
@@ -61,8 +61,8 @@ class MockProcessManager extends Mock implements ProcessManager {
         Map<String, String> environment,
         bool includeParentEnvironment = true,
         bool runInShell = false,
-        Encoding stdoutEncoding = SYSTEM_ENCODING, // ignore: deprecated_member_use
-        Encoding stderrEncoding = SYSTEM_ENCODING, // ignore: deprecated_member_use
+        Encoding stdoutEncoding = systemEncoding,
+        Encoding stderrEncoding = systemEncoding,
       }) {
     return new ProcessResult(0, 0, '', '');
   }

packages/flutter_tools/test/commands/fuchsia_reload_test.dart

@@ -38,8 +38,8 @@ class MockProcessManager extends Mock implements ProcessManager {
     Map<String, String> environment,
     bool includeParentEnvironment = true,
     bool runInShell = false,
-    Encoding stdoutEncoding = SYSTEM_ENCODING, // ignore: deprecated_member_use
-    Encoding stderrEncoding = SYSTEM_ENCODING, // ignore: deprecated_member_use
+    Encoding stdoutEncoding = systemEncoding,
+    Encoding stderrEncoding = systemEncoding,
   }) async {
     return new ProcessResult(0, 0, '1234\n5678\n5', '');
   }

packages/flutter_tools/test/dart/pub_get_test.dart

@@ -164,7 +164,7 @@ class MockProcessManager implements ProcessManager {
     Map<String, String> environment,
     bool includeParentEnvironment = true,
     bool runInShell = false,
-    ProcessStartMode mode = ProcessStartMode.NORMAL, // ignore: deprecated_member_use
+    ProcessStartMode mode = ProcessStartMode.normal,
   }) {
     lastPubEnvironment = environment['PUB_ENVIRONMENT'];
     lastPubCache = environment['PUB_CACHE'];
@@ -237,7 +237,7 @@ class MockFileSystem extends ForwardingFileSystem {
 
 class MockFile implements File {
   @override
-  Future<RandomAccessFile> open({FileMode mode = FileMode.READ}) async { // ignore: deprecated_member_use
+  Future<RandomAccessFile> open({FileMode mode = FileMode.read}) async {
     return new MockRandomAccessFile();
   }
 

packages/flutter_tools/test/devfs_test.dart

@@ -388,11 +388,11 @@ class MockVMService extends BasicMock implements VMService {
 
   Future<Null> setUp() async {
     try {
-      _server = await HttpServer.bind(InternetAddress.LOOPBACK_IP_V6, 0); // ignore: deprecated_member_use
+      _server = await HttpServer.bind(InternetAddress.loopbackIPv6, 0);
       _httpAddress = Uri.parse('http://[::1]:${_server.port}');
     } on SocketException {
       // Fall back to IPv4 if the host doesn't support binding to IPv6 localhost
-      _server = await HttpServer.bind(InternetAddress.LOOPBACK_IP_V4, 0); // ignore: deprecated_member_use
+      _server = await HttpServer.bind(InternetAddress.loopbackIPv4, 0);
       _httpAddress = Uri.parse('http://127.0.0.1:${_server.port}');
     }
     _server.listen((HttpRequest request) {

packages/flutter_tools/test/src/mocks.dart

@@ -122,7 +122,7 @@ class MockProcessManager implements ProcessManager {
     Map<String, String> environment,
     bool includeParentEnvironment = true,
     bool runInShell = false,
-    ProcessStartMode mode = ProcessStartMode.NORMAL, // ignore: deprecated_member_use
+    ProcessStartMode mode = ProcessStartMode.normal,
   }) {
     if (!succeed) {
       final String executable = command[0];

packages/fuchsia_remote_debug_protocol/lib/src/fuchsia_remote_connection.dart

@@ -477,8 +477,8 @@ class FuchsiaRemoteConnection {
       final int lastSpace = trimmed.lastIndexOf(' ');
       final String lastWord = trimmed.substring(lastSpace + 1);
       if ((lastWord != '.') && (lastWord != '..')) {
-        // ignore: deprecated_member_use
-        final int value = int.parse(lastWord, onError: (_) => null);
+
+        final int value = int.tryParse(lastWord);
         if (value != null) {
           ports.add(value);
         }