* Manual roll of Dart from 24c7666def...40fd1c456e

dart-lang/sdk@40fd1c456e Revert "[dart:io] Add Abort() on HttpClientRequest"
dart-lang/sdk@17d7296a42 [vm/nnbd/bytecode] Fix reuse of type arguments in bytecode
dart-lang/sdk@58b6f40c73 Issue 42797. Understand in legacy libraries that a function returning Never (in Null Safety library) never returns. (reland)
dart-lang/sdk@fc8a6d9f9b [VM/compiler] Dereference TypeRef literal when propagating constants.
dart-lang/sdk@0689ec527a Move "test.dart" (well, most of its contents) into pkg/test_runner.
dart-lang/sdk@1094b3c61d Prepare static error test updater tool to handle web tests.
dart-lang/sdk@b258585f2f [observatory] Migrate from deprecated isInstanceOf to isA.
dart-lang/sdk@dfe1d9b682 Disable OverrideContributor for Cider.
dart-lang/sdk@aea99b2f5c scope debug property assist to Diagnosticables
dart-lang/sdk@4b96f20a79 [dart:io] Add Abort() on HttpClientRequest
dart-lang/sdk@1b1a39708c [build] Use frameworks instead of libs
dart-lang/sdk@3fef522496 Revert "Reland "[vm] Replaces fuchsia.deprecatedtimezone""
dart-lang/sdk@8c664d4f3f Revert "Issue 42797. Understand in legacy libraries that a function returning Never (in Null Safety library) never returns."
dart-lang/sdk@2efb5bebc7 [ dart:_http ] Fix typo in HTTP response timeline event
dart-lang/sdk@0884dae36c Revert "Fix the #include path for ICU headers"
dart-lang/sdk@5171534e81 Scope tweaks. Report REFERENCED_BEFORE_DECLARATION in more places.
dart-lang/sdk@6bba75079a Issue 42797. Understand in legacy libraries that a function returning Never (in Null Safety library) never returns.
dart-lang/sdk@b4ebbb7f5c [build] Update gn to match Fuchsia
dart-lang/sdk@cb428a7a02 [dart2js] Remove old bug work around in collector.
dart-lang/sdk@08663c20ab Change flutter patch to match existing DEPS on master branch
dart-lang/sdk@146ad014d9 update js/meta for the 2.10 dev sdk
dart-lang/sdk@488c718793 [co19] Roll co19 to d79951e06e443213243e54c2c32694b79a221b65
dart-lang/sdk@ba20edd7be Add patch for flutter-engine when changing to version 2.10

* Rev buildroot to latest version.

* Update license.

* update.

* Update gn revision.

* Format BUILD.gn files as the gn revision has been updated.

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.

* 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.

Refactors instantiateImageCodec and decodeImageFromPixels to provide intermediate data about the image width, height, and bytes per pixel. This allows for more fine grained control from Dart, particularly when trying to reason about how or whether to maintain aspect ratio in the targetWidth/targetHeight parameters.

This leaves the existing methods functional by re-implementing them to use the new ImmutableBuffer/ImageDescriptor class.

The ImmutableBuffer class is provided so that callers can avoid copying the image data multiple times if they wish to re-recreate the image descriptor.

Related Issues

This reverts commit f9acd080.

Tweak the primary flutter build rule so that fuchsia is more similar to
other platforms in how tests and the shell are built.

Only embedder_unittests and GLFW tests are disabled on Fuchsia now.

TEST: Ran unittests on host/fuchsia; workstation on fuchsia
BUG: fxb/53847, fxb/54056

This change makes it so that we track all the motion events encountered by `FlutterView` and all of its subviews in the `MotionEventTracker` class, indexed by a unique `MotionEventId`. This identifier is then passed to the Flutter framework as seen in https://github.com/flutter/flutter/pull/60930. Once the gestures take part in gesture disambiguation and are sent back to the engine, we look-up the original motion event using the `MotionEventId` and dispatch it to the platform.

Bug: https://github.com/flutter/flutter/issues/58837

* use Object for operator==

* apply style guide for operator==

Fixes https://github.com/flutter/flutter/issues/59109

Additionally create "_next" permutations for all of the test binaries
on Fuchsia, in order to test both code-paths.

Using the #define follow-up CLs can also create a flutter_runner_next
binary that does not contain any legacy integration code.

BUG: 53847

Adds an `allowUpscale` parameter to the Dart interfaces for instantiateImageCodec and decodeImageFromPIxels. If set to false, the image bounds will be clamped at their intrinsic dimensions.

A later commit will change the default to true.

Use bilinear instead of nearest filter to draw surface texture

Related Issues:
https://github.com/flutter/flutter/issues/53080

Tests:
- TextureLayerTest

Correctly describe the way aspect ratio is managed when one parameter is not specified.

* apply null safety syntax to mobile dart:ui

* nullability clean-ups

* null-annotate remaining engine code

* add nullability annotations to lib/ui/painting.dart

* add nullability annotations to ui/text.dart

* Implement GetAllocationSize for Vertices

* Reflect vertex buffer size in pictures

This reverts commit cc08940e.

Make images contribute to Picture allocation size, more aggressively release references when dispose is called (#18706)

SkImage references get held by both our Image and Picture objects. The GC has no idea about this, and so sometimes pictures look very small when they're actually holding a reference to a large chunk of memory. This patch helps make sure that the GC can more adequately catch the real size impact of Picture objects, and combined with an upstream patch in Dart allows for much more aggressive collection of unused image related memory.

The underlying _updateNode call requires that all parameters be set
non-null. There's a single call site in the framework in
lib/src/semantics/semantics.dart in SemanticsNode.updateWith(). At that
call site, all parameters are either asserted non-null in the
constructor of SemanticsData or defaulted to null, with the sole
exception of textDirection.

The ergonomics of this method are currently pretty ugly and we should
consider migrating most of the defaulting and assertions that we apply
at the call site up to the definition in dart:ui. That work is filed as
https://github.com/flutter/flutter/issues/57720.