Increased the memory size of multiple_flutters to help identify regressions in performance
This is not a regression and will affect benchmark's readings.
Makes the android_semantics_testing test not fail for newer versions of Talkback.
Also, since the test now depends on pub_semver, upgraded the pubspec files.
The only substantive changes in the PR are in dev/integration_tests/android_semantics_testing/test_driver/main_test.dart
This change updates the platform runners in the benchmarks subdir.
I've attempted to replace the entire group with new code as if the project were recreated with flutter create so that they don't become a Frankenstein of minor changes to make it work again, but just plain old generated code that can be replaced and updated in place.
This adds a smoke test for every single API example. It also fixes 17 tests that had bugs in them, or were otherwise broken, and even fixes one actual bug in the framework, and one limitation in the framework.
The bug in the framework is that NetworkImage's _loadAsync method had await response.drain<List<int>>();, but if the response is null, it will throw a cryptic exception saying that Null can't be assigned to List<int>. The fix was just to use await response.drain<void>(); instead.
The limitation is that RelativePositionedTransition takes an Animation<Rect> rect parameter, and if you want to use a RectTween with it, the value emitted there is Rect?, and one of the examples was just casting from Animation<Rect> to Animation<Rect?>, which is invalid, so I modified RelativePositionedTransition to take a Rect? and just use Rect.zero if the rect is null.
