remove the --checked option (#3799)

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

@@ -13,6 +13,7 @@ import '../application_package.dart';
 import '../base/file_system.dart';
 import '../base/common.dart';
 import '../base/os.dart';
+import '../build_configuration.dart';
 import '../device.dart';
 import '../globals.dart';
 import '../ios/simulators.dart' show SimControl, IOSSimulatorUtils;
@@ -99,7 +100,7 @@ class DriveCommand extends RunCommandBase {
 
     if (!argResults['use-existing-app']) {
       printStatus('Starting application: ${argResults["target"]}');
-      int result = await appStarter(this);
+      int result = await appStarter(this, getBuildMode());
       if (result != 0) {
         printError('Application failed to start. Will not run test. Quitting.');
         return result;
@@ -228,13 +229,14 @@ Future<Device> findTargetDevice() async {
 }
 
 /// Starts the application on the device given command configuration.
-typedef Future<int> AppStarter(DriveCommand command);
+typedef Future<int> AppStarter(DriveCommand command, BuildMode buildMode);
+
 AppStarter appStarter = startApp;
 void restoreAppStarter() {
   appStarter = startApp;
 }
 
-Future<int> startApp(DriveCommand command) async {
+Future<int> startApp(DriveCommand command, BuildMode buildMode) async {
   String mainPath = findMainDartFile(command.target);
   if (await fs.type(mainPath) != FileSystemEntityType.FILE) {
     printError('Tried to run $mainPath, but that file does not exist.');
@@ -269,7 +271,7 @@ Future<int> startApp(DriveCommand command) async {
     mainPath: mainPath,
     route: command.route,
     debuggingOptions: new DebuggingOptions.enabled(
-      checked: command.checked,
+      checked: buildMode == BuildMode.debug,
       startPaused: true,
       observatoryPort: command.debugPort
     ),

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

@@ -8,6 +8,7 @@ import 'dart:io';
 import '../base/os.dart';
 import '../base/process.dart';
 import '../device.dart';
+import '../build_configuration.dart';
 import '../globals.dart';
 import 'run.dart';
 
@@ -63,7 +64,7 @@ class ListenCommand extends RunCommandBase {
         target: target,
         install: firstTime,
         stop: true,
-        debuggingOptions: new DebuggingOptions.enabled(checked: checked),
+        debuggingOptions: new DebuggingOptions.enabled(checked: getBuildMode() == BuildMode.debug),
         traceStartup: traceStartup,
         route: route
       );

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

@@ -20,10 +20,12 @@ import 'install.dart';
 
 abstract class RunCommandBase extends FlutterCommand {
   RunCommandBase() {
-    argParser.addFlag('checked',
+    addBuildModeFlags();
-        negatable: true,
+
-        defaultsTo: true,
+    // TODO(devoncarew): This flag is ignored, and should be removed once tools
-        help: 'Toggle Dart\'s checked mode.');
+    // no longer pass in `--checked`.
+    argParser.addFlag('checked', negatable: true, hide: true);
+
     argParser.addFlag('trace-startup',
         negatable: true,
         defaultsTo: false,
@@ -33,7 +35,6 @@ abstract class RunCommandBase extends FlutterCommand {
     usesTargetOption();
   }
 
-  bool get checked => argResults['checked'];
   bool get traceStartup => argResults['trace-startup'];
   String get target => argResults['target'];
   String get route => argResults['route'];
@@ -50,7 +51,6 @@ class RunCommand extends RunCommandBase {
   final List<String> aliases = <String>['start'];
 
   RunCommand() {
-    addBuildModeFlags();
     argParser.addFlag('full-restart',
         defaultsTo: true,
         help: 'Stop any currently running application process before running the app.');
@@ -105,7 +105,7 @@ class RunCommand extends RunCommandBase {
       options = new DebuggingOptions.disabled();
     } else {
       options = new DebuggingOptions.enabled(
-        checked: checked,
+        checked: getBuildMode() == BuildMode.debug,
         startPaused: argResults['start-paused'],
         observatoryPort: debugPort
       );

packages/flutter_tools/test/drive_test.dart

@@ -38,7 +38,7 @@ void main() {
       targetDeviceFinder = () {
         throw 'Unexpected call to targetDeviceFinder';
       };
-      appStarter = (_) {
+      appStarter = (_, __) {
         throw 'Unexpected call to appStarter';
       };
       testRunner = (_) {
@@ -75,7 +75,7 @@ void main() {
 
     testUsingContext('returns 1 when app fails to run', () async {
       withMockDevice();
-      appStarter = expectAsync((_) async => 1);
+      appStarter = expectAsync((_, __) async => 1);
 
       String testApp = '/some/app/test_driver/e2e.dart';
       String testFile = '/some/app/test_driver/e2e_test.dart';
@@ -140,7 +140,7 @@ void main() {
       String testApp = '/some/app/test/e2e.dart';
       String testFile = '/some/app/test_driver/e2e_test.dart';
 
-      appStarter = expectAsync((_) {
+      appStarter = expectAsync((_, __) {
         return new Future<int>.value(0);
       });
       testRunner = expectAsync((List<String> testArgs) {
@@ -172,7 +172,7 @@ void main() {
       String testApp = '/some/app/test/e2e.dart';
       String testFile = '/some/app/test_driver/e2e_test.dart';
 
-      appStarter = expectAsync((_) {
+      appStarter = expectAsync((_, __) {
         return new Future<int>.value(0);
       });
       testRunner = expectAsync((_) {