Siva 68a3ca46b4
Roll src/third_party/dart 445a23a9bc..0e6b74543c (29 commits) (#9159)
0e6b74543c Revert "[vm/kernel] Use GC-tracked ExternalTypedData/TypedDataView for kernel buffers"
250f3d2e56 [gardening] Attempt to repair red HHH bot, take 3
cddf2bbdfe [vm/debugger] Support debugging of interpreted frames.
0e07987ccd [gardening] Attempt to repair red HHH bot, take 2
c5e03e5cce Fix tests that assign null to non-null locations
9d4649a44c Set context type for downward inference in constants.
7ae22b9394 [gardening] Attempt to repair red HHH bot
30d118d429 Handle deferred expressions and names in model_test
b3f262298c Fix recording covariance for default parameters.
c72893dc12 Update CHANGELOG.md with HttpClientResponseCompressionState
5fcff2f581 Use modular code generation in modular_test
190599de78 Skip LSP cancellation handling for Notification requests
edae8c474c Fix _createSdkModule for Windows
a620c56e8d Ensure output unit data for late members
abc8195541 Add more failing tests for downward inference in nnbd
2938630937 update parser to handle "!." in nnbd expressions
dc7fa3bae7 Add patch to fix Flutter
2babb218d6 [ VM / Service ] Removed fixedId parameter from Isolate responses
a25f927ba9 Split HTypeConversion
aa2ce7cfbf Add `compressionState` getter to the HttpClientResponse API.
c4a1ca903f [dartdevc] Cleanup violations of `unrelated_type_equality_checks` lint
c4d1d2a29d [vm] Remove #include in runtime_offsets_list that breaks flutter
e34d63bd11 Visit return types of functions/methods to consumer GenericFunctionType(s).
372b02d97f [vm/bytecode] Add information about local variables to bytecode
0a66b3e644 Fix scopes for resolving class / mixin headers.
d51d41b109 Add some failing tests for downward inference in nnbd
3015d79371 [vm] Create offsets_extractor tool.
556c9134ac Update the SDK version associated with constant update hints
7c956f4387 Make it possible to consume summary2 in build mode, but don't turn it on yet.
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Flutter Engine

Build Status

Flutter is a new way to build high-performance, cross-platform mobile apps. Flutter is optimized for today's, and tomorrow's, mobile devices. We are focused on low-latency input and high frame rates on Android and iOS.

The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.

If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at Flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.dev.

If you intend to contribute to Flutter, welcome! You are encouraged to start with our contributor guide, which helps onboard new team members.

Languages
Dart 75%
C++ 16.5%
Objective-C++ 2.9%
Java 2.8%
Objective-C 0.7%
Other 1.9%