* AssetProvider
* libtxt

We're going to remove fxl::Mutex soon.

Use weak pointers to the accesibility bridge from objects vended to the UIKit accessibility framework. (#4761)

This reverts commit 1b7325ca.

Prior to this, the engine was adding font managers to the list every time the
app restarts (e.g. after a suspend-and-resume cycle), causing a leak.

This is needed by some drivers.

/dev/class/display is now only for the display, not for creating the
vulkan device. Also increase the timeout, because this process starts on
boot and the driver can take a while to start.

Fixes https://github.com/flutter/flutter/issues/14947

* deprecate snapshot_override, which is an obsolete predecessor of hot reload
* give the APKAssetProvider to the engine in the initial call to RunBundle
* later calls to Engine::RunBundleAndSource or Engine::SetAssetBundlePath
  will replace the APK asset provider with a DirectoryAssetBundle that uses
  the newly pushed assets

* Merge

* Update license hash

* Dart roll

b5b8080b2c Disable the conflicting generics check when using the old task model.
9986b6de25 Fix bugs in implicit-creation tests. Add one more test.
d22ac9f071 Faster first/last on VM implementation of (Linked)HashSet.
f8f97bf105 *.status files and DEPS updated to include latest fixes for co19 tests
235e62264e [VM] Reland Support some 32bit instructions in 64bit assemblers.
17d5c44d40 [fasta] Invalidate part file when init from dill
d3c3ac48a3 Remove implicit 'implements Function' for strong mode
6baae53a5b Check functionTypeIndex in rti_emission_test
e047586a0e Fix bad merge after 2181119d879da8e0293ddee698dc50e3de631750
2181119d87 Test and fix invalidating file exporting main
080e7e6073 Fix status files: file is excluded and so dartanalyzer errs on test.
c8ee601268 Add feature specification draft for Dart 2.0 subtyping
73944a3a5c Stop running corelib_2 in dart2js legacy
748cfdff7e Refactor to efficiently find analysis roots correctly fix #31343 & #31344.
c2a8632665 Cleanup language_2 .status
6189b9a360 Change Flutter Outline API to provide full instrumented code instead of edits.
2448814e83 Also exclude 'Ok' as a valid status to ignore when checking for runtime errors in Runtime.none
b1778e5c34 Stop running language_2 tests on legacy mode
4066804e5f Remove hint suppression now that MapEntry has landed
f5e4f88c71 Skip assertions in InlineWeeder unless enabled
ce715c3157 [Kernel] Annotate status file with newly filed issues.
a4c69b7729 Pass platform sdk as uri to frontend server.
1d159e7c23 Rename annotation testing methods in Element
4688be6320 Pass sdkRoot as file path to frontend server.
3ac86d759e Revert "[VM] Support some 32bit instructions in 64bit assemblers."
d0eb2d63e8 [infra] Add front-end builder to test matrix
a5f173f165 [VM] Support some 32bit instructions in 64bit assemblers.
d1203a382f [fasta] Use platform as outline in incremental test; assert non-empty mixin bodies
5fd560f96b Add getters to replace ParameterKind
0b332de3a8 Refactor where AST re-writing is happening to not interact poorly with inference (issue 32342)
a528f09443 Update status for dartkp test null_nosuchmethod_test
e59018e714 Revert "Do not return this on RandomAccessFile.close"
14c1834334 [fasta] Add mixin test to incremental compiler test
2993476129 Report an error if a class inconsistently implements a generic interface.
e5295eb6d1 [fasta] Small changes to the incremental compiler
b2fa7c4497 Always create problems to ensure lines are removed from status files
c89055ee32 [VM] Fix type finalization for Kernel function types.
4ff939d3e4 [frontend-server] Keep output kernel file name through reload request.
11cbdbe26e When checking mixin type inference errors, don't skip mixins with explicit type args.
e74e2b3c3e Pass varFinalOrConst in beginVariablesDeclaration event
44aa9a17fd Do not return this on RandomAccessFile.close
9be25848e1 Roll async in DEPS to 2.0.6
8e8287f4e0 Add classes for instantiations
cae6d89429 Prepare language_dart2js.status to enable CFE by default on dart2js
7fd5294bb3 Add rules to build dart2js platform in strong mode
47ba426b62 [vm] Dump stack on SIGILL; print exception codes.
751de54dc0 Remove invalid dart:collection link in doc comments
22f860a229 Update AstBuilder to report illegal assignment
109316c484 Force inlining to match AST version
34f8c356a3 Fix sdk stack trace mapping so tools recognize it
514271e494 Prepare corelib.status for flipping on CFE on dart2js
80e2d30c20 [vm] Fix issue causing recursive_mixin_test to crash
2c956749a5 [VM] Add support to HierarchyInfo to not only create [CidRangeVector]s of subtypes but also subclasses
5d92543f42 [VM] Fix accidental double assignment
80805ff1c1 [VM] Make FlowGraphCompiler::EmitTestAndCallCheckCid static and therefore usable from stubs
9cfd721f78 [VM] Handle kVoidCid/kDynamicCid/kVectorCid the same way
65b2b1a671 [VM] Split handling of Code from non-Code in Thread::{CanLoadFromThread,OffsetFromThread}
2f10ab76f7 Mark incremental_load_from_dill_test slow on Windows
b70d7d55b7 Fix setting of body for procedures patched with redirecting factories
3a769b9dbe Add missing methods to make classes Dart 2 valid.
57a01968ed [fasta] Incremental compilation fallback
7d83584c5b Some kernel status file adjustments
c67cf2090a Make warning more warning-y.
e38e98afbe Update dart2js_native.status: updated to be accurate with our many configurations
1ce131b317 fix section for update_from_log
bde6603d92 Update dart2js_extra.status: now it correctly declares expectations for non-minified, minified, host-checked, checked, and fast-startup
be62fff82f Reland "[VM runtime] Switch intrinsics from old to new Bigint implementation."

* Update license

gtest is an old version that predates the googletest and googlemock
merger, all tests should be using the newer googletest that's being
kept in sync with the upstream version.

This reverts commit 25b25e5a as it
causes dartbug.com/32421.

* Roll dart to 4688be632009ab2eae7f9ae39e929e0fa36ba365.

* Move dart dep up to a4c69b772950c65cd73e6a84e550cc9f46083504

The Fuchsia Package targets depend on the observatory FAR archive, which is
generated by a rule with a deceptively similar name.

* Leave only widget creation tracker kernel pass in flutter frontend server.

This is follow-up to https://dart-review.googlesource.com/c/sdk/+/43888.

* Adapt to updated interface

* Tyop

* Fix imports. Compiler interface extension

* Add trivial test back. Rename library to flutter_frontend_server.

This reverts commit e48e3e10.

This updates the construction of the GrVkAlloc struct since it has changed in Skia. Once flutter rolls an updated Skia, we can just call the new constructor directly in the GrVkImageInfo struct instead of needing to create the GrVkAlloc above.

* Roll dart to ee15c8eb689791f6777eb3f6b0a1e9c58ff0671b.

* Update dart deps

* Skip over .emf-files.

.emf-files are binary media files in Microsoft enhanced mediaformat.

* Update license

* Cleanup license

* Clean up 3rd party licenses

.emf-files are binary media files in Microsoft enhanced mediaformat.

* work in progress

* work in progress

Move generated entry points JSON out of flutter_patched_sdk, add an option to pass entry points to frontend_server (#4734)

Flutter downloads only one version of flutter_patched_sdk, which was obtained from host_debug build on Linux. Generated entry points JSON files are different in profile and release builds (as release build omits observatory), so these files should be downloaded independently of flutter_patched_sdk.

This PR moves generated entry points JSON files from flutter_patched_sdk to a separate directory (out/*/dart_entry_points) and adds an option to specify entry points to frontend_server (as Flutter tools will need to pass custom locations of entry points files outside of flutter_patched_sdk).

NSLocale objectForKey: may return nil for NSLocaleLanguageCode and
NSLocateCountryCode in certain cases.

This adds a defensive nil check for such cases.

Fixes https://github.com/flutter/flutter/issues/14987, but why?

Without specifying sdkSummary it defaults to vm_outline.dill which is not what we want if using mixins from the sdk. 

* Generate Flutter-specific entry points JSON file while building engine.
* Add ''--tfa' option to front-end server.
* Rename _entryPoint field in front-end server to _mainSource to avoid disambiguation.

This allows blobfs to deduplicate it across {dart,flutter}_{jit,aot}_runner.

* Add more haptic feedback varieties

* Make the specific feedback types do nothing on <iOS 10