* 4x4.png -> 2x2.png; this file is actually 2x2

A zircon handle is associated with a koid, kernal object identifier.
Whereas the handle can be duplicated, koid is unique. Two distinct
handles can point to the same kernal object, if their koids are
the same.

This change adds access to koid for a Handle object.

Test: Adds a unittest for koid
Co-authored-by: NSanjay Chouksey <sanjayc@google.com>

This is part of a larger effort to expose the difference between GrDirectContext,
which runs on the GPU thread and can directly perform operations like uploading
textures, and GrRecordingContext, which can only queue up work to be delivered
to the GrDirectContext later.

For https://github.com/flutter/flutter/issues/39526

* fixinf enable semantics

* fix unit tests

* fix indentation

* addressing reviewer comments

* fix comment

* make commnt starts upper case

* fix grammar in comment

* Add one more comment

* fix FlutterViewUpdateCustomAccessibilityActions uses correct string list

* add test to ci

* format

* add license file

* fix test

* fix lint

The Windows, Linux, and GLFW embeddings (which all share a common code
ancestry) pass TextInput.setEditingState selection base and extents
straight through to the shared text model class. The model expects those
values to be valid, but the framework sends -1/-1 for "invalid"
selections, which happen for some empty text cases (e.g.,
TextFieldController.clear()).

This translates those invalid selection values to an empty selection at
the start of the string, as expected by the model.

Fixes https://github.com/flutter/flutter/issues/59140

* fix gclient runhooks for windows

remove extra null checks

* remove usage of dartdev command so that gclient runhooks can re-generate package_config.json

* Manual merge or Dart into flutter a3815b6590...24c7666def

dart-lang/sdk@24c7666def Update tests that have the current version number hardcoded
dart-lang/sdk@f88ce7aef5 Increase Dart version to 2.10

* Update language version.

* Update license.

* Hpdate language version.

* Update license.