When running an app on the iOS Simulator in debug mode (eg. flutter run --start-paused), the app is not terminated on the device when you stop (send an app.stop request). This happens even if the app is not paused at the time.

To repro:

• Open a Flutter app in Android Studio or VS Code (both have same behaviour)
• Run the app on iOS Simulator) without debugging ("Start without debugging" in VS Code, or the green triangle run button in Android Studio)
• After the app appears, click the Stop Debugging button
• Note that the app closes on the Simulator
• Re-run the app with debugging (the bug icon in Android Studio, or Start Debugging in VS Code)
• After the app appears, click the Stop Debugging button
• Note that the app remains open in the simulator

Looking at the logs in VS Code, the --start-paused flag is the only thing I can see that's difference in these cases, so I think something it's doing is changing the behaviour when app.stop is sent.

(moved from Dart-Code/Dart-Code#2291)