Change flutter_build_with_compilation_error_test to check stdout or stderr (#152404)

On Xcode 16 beta 3 stderr is:
```
** BUILD FAILED **
```
stdout is:
```
Writing result bundle at path:
	/var/folders/fm/wjzsj_z95ydgn4khxqgbtqx000mfq2/T/flutter_tools.PeJZlH/flutter_ios_build_temp_dirqmiKld/temporary_xcresult_bundle

error: lib/main.dart:13:11: Error: A value of type 'String' can't be assigned to a variable of type 'int'.
  int x = 'String';
          ^
Target kernel_snapshot_program failed: Exception
Failed to package /Users/m/Projects/test_create.
note: Disabling previews because SWIFT_VERSION is set and SWIFT_OPTIMIZATION_LEVEL=-O, expected -Onone (in target 'Runner' from project 'Runner')
note: Run script build phase 'Thin Binary' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Runner' from project 'Runner')
note: Run script build phase 'Run Script' will be run during every build because the option to run the script phase "Based on dependency analysis" is unchecked. (in target 'Runner' from project 'Runner')
```

The tool output of `flutter build ios` shows both:
```
Building com.example.testCreate for device (ios-release)...
Automatically signing iOS for device deployment using specified development team
in Xcode project: S8QB4VV633
Running Xcode build...
Xcode build done.                                           10.1s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **

Xcode's output:
↳
    Writing result bundle at path:
    	/var/folders/fm/wjzsj_z95ydgn4khxqgbtqx000mfq2/T/flutter_tools.Dgnlxc/flutt
    	er_ios_build_temp_dirpKTDdk/temporary_xcresult_bundle

    error: lib/main.dart:13:11: Error: A value of type 'String' can't be
    assigned to a variable of type 'int'.
      int x = 'String';
              ^
    Target kernel_snapshot_program failed: Exception
    Failed to package /Users/magder/Projects/test_create.
    note: Disabling previews because SWIFT_VERSION is set and
    SWIFT_OPTIMIZATION_LEVEL=-O, expected -Onone (in target 'Runner' from
    project 'Runner')
    note: Run script build phase 'Run Script' will be run during every build
    because the option to run the script phase "Based on dependency analysis" is
    unchecked. (in target 'Runner' from project 'Runner')
    note: Run script build phase 'Thin Binary' will be run during every build
    because the option to run the script phase "Based on dependency analysis" is
    unchecked. (in target 'Runner' from project 'Runner')

Encountered error while building for device.
```

The point of this test is that you can see the error `int x = 'String';` error in the tool output. https://github.com/flutter/flutter/issues/72608#issuecomment-797473109

I think just updating the test to check stderr or stdout is sufficient without touching the tool behavior.

Fixes https://github.com/flutter/flutter/issues/151553
1 file changed
tree: a8b59c205e091ef4cb5a52cdc20a8fe9325f488b
  1. .github/
  2. .vscode/
  3. bin/
  4. dev/
  5. docs/
  6. examples/
  7. packages/
  8. .ci.yaml
  9. .gitattributes
  10. .gitignore
  11. analysis_options.yaml
  12. AUTHORS
  13. CHANGELOG.md
  14. CODE_OF_CONDUCT.md
  15. CODEOWNERS
  16. CONTRIBUTING.md
  17. dartdoc_options.yaml
  18. flutter_console.bat
  19. LICENSE
  20. PATENT_GRANT
  21. README.md
  22. TESTOWNERS
README.md

Flutter CI Status Discord badge Twitter handle codecov CII Best Practices OpenSSF Scorecard SLSA 1

Flutter is Google's SDK for crafting beautiful, fast user experiences for mobile, web, and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.

Documentation

For announcements about new releases, follow the flutter-announce@googlegroups.com mailing list. Our documentation also tracks breaking changes across releases.

Terms of service

The Flutter tool may occasionally download resources from Google servers. By downloading or using the Flutter SDK, you agree to the Google Terms of Service: https://policies.google.com/terms

For example, when installed from GitHub (as opposed to from a prepackaged archive), the Flutter tool will download the Dart SDK from Google servers immediately when first run, as it is used to execute the flutter tool itself. This will also occur when Flutter is upgraded (e.g. by running the flutter upgrade command).

About Flutter

We think Flutter will help you create beautiful, fast apps, with a productive, extensible and open development model, whether you're targeting iOS or Android, web, Windows, macOS, Linux or embedding it as the UI toolkit for a platform of your choice.

Beautiful user experiences

We want to enable designers to deliver their full creative vision without being forced to water it down due to limitations of the underlying framework. Flutter‘s layered architecture gives you control over every pixel on the screen and its powerful compositing capabilities let you overlay and animate graphics, video, text, and controls without limitation. Flutter includes a full set of widgets that deliver pixel-perfect experiences whether you’re building for iOS (Cupertino) or other platforms (Material), along with support for customizing or creating entirely new visual components.

Fast results

Flutter is fast. It's powered by hardware-accelerated 2D graphics libraries like Skia (that underpins Chrome and Android) and Impeller. We architected Flutter to support glitch-free, jank-free graphics at the native speed of your device.

Flutter code is powered by the world-class Dart platform, which enables compilation to 32-bit and 64-bit ARM machine code for iOS and Android, JavaScript and WebAssembly for the web, as well as Intel x64 and ARM for desktop devices.

Productive development

Flutter offers stateful hot reload, allowing you to make changes to your code and see the results instantly without restarting your app or losing its state.

Hot reload animation

Extensible and open model

Flutter works with any development tool (or none at all), and also includes editor plug-ins for both Visual Studio Code and IntelliJ / Android Studio. Flutter provides tens of thousands of packages to speed your development, regardless of your target platform. And accessing other native code is easy, with support for both FFI (on Android, on iOS, on macOS, and on Windows) as well as platform-specific APIs.

Flutter is a fully open-source project, and we welcome contributions. Information on how to get started can be found in our contributor guide.