[flutter_tools] ensure track-widget-creation can be changed on devcompiler (#56564)

Workaround for cached web builds with --[no-]track-widget-creation flags.
Similar PR: #23299

dev/devicelab/manifest.yaml

@@ -814,14 +814,12 @@ tasks:
     stage: devicelab
     required_agent_capabilities: ["linux-vm"]
 
-  # TODO(jonahwilliams): This should stay off until
-  # https://github.com/flutter/flutter/issues/56212 is fixed.
-  # web_enable_twc:
-  #   description: >
-  #     Verifies that track-widget-creation can be enabled and disabled.
-  #   stage: devicelab
-  #   required_agent_capabilities: ["linux-vm"]
-  #   flaky: true
+  web_enable_twc:
+     description: >
+       Verifies that track-widget-creation can be enabled and disabled.
+     stage: devicelab
+     required_agent_capabilities: ["linux-vm"]
+     flaky: true
 
   # run_without_leak_linux:
   #   description: >

packages/flutter_tools/lib/src/build_runner/resident_web_runner.dart

@@ -640,7 +640,7 @@ class _ResidentWebRunner extends ResidentWebRunner {
       pathToReload: getReloadPath(fullRestart: fullRestart),
       invalidatedFiles: invalidationResult.uris,
       packageConfig: invalidationResult.packageConfig,
-      trackWidgetCreation: true,
+      trackWidgetCreation: debuggingOptions.buildInfo.trackWidgetCreation,
     );
     devFSStatus.stop();
     globals.printTrace('Synced ${getSizeAsMB(report.syncedBytes)}.');

packages/flutter_tools/lib/src/bundle.dart

@@ -34,6 +34,13 @@ String getDefaultApplicationKernelPath({ @required bool trackWidgetCreation }) {
   );
 }
 
+String getDefaultCachedKernelPath({ @required bool trackWidgetCreation }) {
+  return getKernelPathForTransformerOptions(
+    globals.fs.path.join(getBuildDirectory(), 'cache.dill'),
+    trackWidgetCreation: trackWidgetCreation,
+  );
+}
+
 String getKernelPathForTransformerOptions(
   String path, {
   @required bool trackWidgetCreation,

packages/flutter_tools/lib/src/resident_runner.dart

@@ -21,6 +21,7 @@ import 'base/signals.dart';
 import 'base/terminal.dart';
 import 'base/utils.dart';
 import 'build_info.dart';
+import 'bundle.dart';
 import 'codegen.dart';
 import 'compile.dart';
 import 'convert.dart';
@@ -98,7 +99,9 @@ class FlutterDevice {
         compilerMessageConsumer:
           (String message, {bool emphasis, TerminalColor color, }) =>
             globals.printTrace(message),
-        initializeFromDill: globals.fs.path.join(getBuildDirectory(), 'cache.dill'),
+        initializeFromDill: getDefaultCachedKernelPath(
+          trackWidgetCreation: buildInfo.trackWidgetCreation,
+        ),
         targetModel: TargetModel.dartdevc,
         experimentalFlags: experimentalFlags,
         platformDill: globals.fs.file(globals.artifacts
@@ -123,7 +126,9 @@ class FlutterDevice {
         targetModel: targetModel,
         experimentalFlags: experimentalFlags,
         dartDefines: buildInfo.dartDefines,
-        initializeFromDill: globals.fs.path.join(getBuildDirectory(), 'cache.dill'),
+        initializeFromDill: getDefaultCachedKernelPath(
+          trackWidgetCreation: buildInfo.trackWidgetCreation,
+        ),
         packagesPath: globalPackagesPath,
       );
     }
@@ -723,6 +728,7 @@ abstract class ResidentRunner {
   bool get supportsServiceProtocol => isRunningDebug || isRunningProfile;
   bool get supportsCanvasKit => false;
   bool get supportsWriteSkSL => supportsServiceProtocol;
+  bool get trackWidgetCreation => debuggingOptions.buildInfo.trackWidgetCreation;
 
   // Returns the Uri of the first connected device for mobile,
   // and only connected device for web.
@@ -1156,10 +1162,11 @@ abstract class ResidentRunner {
   Future<void> preExit() async {
     // If _dillOutputPath is null, we created a temporary directory for the dill.
     if (_dillOutputPath == null && artifactDirectory.existsSync()) {
-      final File outputDill = artifactDirectory.childFile('app.dill');
+      final File outputDill = globals.fs.file(dillOutputPath);
       if (outputDill.existsSync()) {
-        artifactDirectory.childFile('app.dill')
-          .copySync(globals.fs.path.join(getBuildDirectory(), 'cache.dill'));
+        outputDill.copySync(getDefaultCachedKernelPath(
+          trackWidgetCreation: trackWidgetCreation,
+        ));
       }
       artifactDirectory.deleteSync(recursive: true);
     }

packages/flutter_tools/test/general.shard/resident_web_runner_test.dart

@@ -141,7 +141,7 @@ void main() {
       projectRootPath: anyNamed('projectRootPath'),
       pathToReload: anyNamed('pathToReload'),
       invalidatedFiles: anyNamed('invalidatedFiles'),
-      trackWidgetCreation: true,
+      trackWidgetCreation: anyNamed('trackWidgetCreation'),
       packageConfig: anyNamed('packageConfig'),
     )).thenAnswer((Invocation _) async {
       return UpdateFSReport(success: true,  syncedBytes: 0)..invalidatedModules = <String>[];
@@ -583,7 +583,7 @@ void main() {
       pathToReload: anyNamed('pathToReload'),
       invalidatedFiles: anyNamed('invalidatedFiles'),
       packageConfig: anyNamed('packageConfig'),
-      trackWidgetCreation: true,
+      trackWidgetCreation: anyNamed('trackWidgetCreation'),
     )).thenAnswer((Invocation _) async {
       return UpdateFSReport(success: false,  syncedBytes: 0)..invalidatedModules = <String>[];
     });
@@ -646,7 +646,7 @@ void main() {
       pathToReload: anyNamed('pathToReload'),
       invalidatedFiles: anyNamed('invalidatedFiles'),
       packageConfig: anyNamed('packageConfig'),
-      trackWidgetCreation: true,
+      trackWidgetCreation: anyNamed('trackWidgetCreation'),
     )).thenAnswer((Invocation _) async {
       return UpdateFSReport(success: false,  syncedBytes: 0)..invalidatedModules = <String>[];
     });