* Update stack trace test expectations to adjust for a fix landed in dart sdk
* Include engine roll to 10887c2abe7b7fe5866e84d6b63dd546f02fc963
* Update column for the exception expectation
Adds initial support for flutter create of apps and plugins. This is derived from the current FDE example app and sample plugin, adding template values where relevant.
Since the APIs/tooling/template aren't stable yet, the app template includes a version marker, which will be updated each time there's a breaking change. The build now checks that the template version matches the version known by that version of the tool, and gives a specific error message when there's a mismatch, which improves over the current breaking change experience of hitting whatever build failure the breaking change causes and having to figure out that the problem is that the runner is out of date. It also adds a warning to the create output about the fact that it won't be stable.
Plugins don't currently have a version marker since in practice this is not a significant problem for plugins yet the way it is for runners; we can add it later if that changes.
Fixes#30704
* Allow projects that don't have tests on every platform.
We don't really need to enforce that random projects have
tests on every platform.
* Add some text at the end of the shard so we know it's
actually running all the tests.
* Fix web test flakiness; enable web golden tests
The fix is three-part:
- Only allow one test to load _and_ test at any point in time.
- Use a fresh Chrome instance for each test file.
- Increase Cirrus resources.
The first two changes only fix the "Unknown error loading" error, but not hanging tests. The resource increase also prevents hanging tests.
Other minor changes:
- Remove test batching (it's no longer necessary)
- Fix the Chrome class, which was using the wrong Completer.
Move Flutter Gallery to dev/integration_tests/ as it is an older copy used only for testing. The current version of the Flutter Gallery now lives in https://github.com/flutter/gallery.
