This reverts commit 61c30eed.

This reverts commit d92fedcc.

This reverts commit 509ddfda.

This reverts commit 5fd259be.

* Randomize tests, exclude tests that fail with randomization.

* Disable some more tool tests

This reverts commit b5f9612c because it is taking about 40% longer to run the tests, which is causing timeouts.

This turns on order shuffling for all tests that don't fail with it on, marking those tests that do fail with a tag so that they will be run without shuffling on.

To determine which tests fail with it on, I ran all the tests 100 times with different random shuffle seeds, and then also ran it with the date seeds from today until the end of July, and tagged all of the test suites (files) that fail, with a seed that caused them to fail.

This reverts commit 35ad43f2.

This reverts commit c26ed03c.

* Migrate to ChannelBuffers.push

* Move TestDefaultBinaryMessenger to its own file

* Apply deprecations and fix usages

This removes the nullOk parameter from Focus.of, FocusTraversalOrder.of and FocusTraversalGroup.of, and creates maybeOf equivalents for each. The of methods now return non-nullable values, and the maybeOf equivalents return nullable values.

* PointerEvent.local* properties are calculated lazily; other properties are delegated to original.
* Transformed PointerEvent becomes a subclass of its original class.
* Unnamed constructors no longer accepts transform and origin.

After #31935, Some one sequence gesture recognizers requires at least one callback to be able to compete in the arena. This PR adds the a no-op callback in the gesture recognizer in the platform view when the gesture recognizer does not have any callbacks. This way, all the gesture recognizers in the platform view can compete in the arena.