Fix App.framework path in Podfile (#63412)

dev/devicelab/bin/tasks/module_test_ios.dart

@@ -191,6 +191,16 @@ Future<void> main() async {
       // Android-only, no embedded framework.
       checkDirectoryNotExists(path.join(ephemeralIOSHostApp.path, 'Frameworks', 'android_alarm_manager.framework'));
 
+      section('Clean and pub get module');
+
+      await inDirectory(projectDir, () async {
+        await flutter('clean');
+      });
+
+      await inDirectory(projectDir, () async {
+        await flutter('pub', options: <String>['get']);
+      });
+
       section('Add to existing iOS Objective-C app');
 
       final Directory objectiveCHostApp = Directory(path.join(tempDir.path, 'hello_host_app'));
@@ -241,6 +251,23 @@ Future<void> main() async {
         return TaskResult.failure('Failed to build existing Objective-C app .app');
       }
 
+      checkFileExists(path.join(
+        objectiveCBuildDirectory.path,
+        'Host.app',
+        'Frameworks',
+        'Flutter.framework',
+        'Flutter',
+      ));
+
+      checkFileExists(path.join(
+        objectiveCBuildDirectory.path,
+        'Host.app',
+        'Frameworks',
+        'App.framework',
+        'flutter_assets',
+        'isolate_snapshot_data',
+      ));
+
       final String objectiveCAnalyticsOutput = objectiveCAnalyticsOutputFile.readAsStringSync();
       if (!objectiveCAnalyticsOutput.contains('cd24: ios')
           || !objectiveCAnalyticsOutput.contains('cd25: true')

packages/flutter_tools/templates/module/ios/library/Flutter.tmpl/podhelper.rb.tmpl

@@ -96,7 +96,8 @@ end
 #                                          Optional, defaults to two levels up from the directory of this script.
 #                                          MyApp/my_flutter/.ios/Flutter/../..
 def install_flutter_application_pod(flutter_application_path)
-  app_framework_dir = File.expand_path('App.framework', File.join('..', __FILE__))
+  current_directory_pathname = Pathname.new File.expand_path('..', __FILE__)
+  app_framework_dir = File.expand_path('App.framework', current_directory_pathname.to_path)
   app_framework_dylib = File.join(app_framework_dir, 'App')
   if !File.exist?(app_framework_dylib)
     # Fake an App.framework to have something to link against if the xcode backend script has not run yet.
@@ -108,7 +109,7 @@ def install_flutter_application_pod(flutter_application_path)
 
   # Keep pod and script phase paths relative so they can be checked into source control.
   # Process will be run from project directory.
-  current_directory_pathname = Pathname.new File.expand_path('..', __FILE__)
+
   # defined_in_file is set by CocoaPods and is a Pathname to the Podfile.
   project_directory_pathname = defined_in_file.dirname
   relative = current_directory_pathname.relative_path_from project_directory_pathname