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.

[TextSelectionControls] move the tap gesture callback into _TextSelectionHandlePainter, remove `_TransparentTapGestureRecognizer`. (#83639)

This reverts commit 35ad43f2.

This reverts commit c26ed03c.

* Migrate to ChannelBuffers.push

* Move TestDefaultBinaryMessenger to its own file

* Apply deprecations and fix usages

This reverts commit a46139a2.

A very minimal right-click menu for Mac desktop.

When attempting to select a space on mobile, Flutter will try to select the word before the space too, if one exists.

Enables custom text selection menus by allowing selectionControls to be passed to TextField et. al.

SkParagraph may calculate slightly different metrics for text layouts