2. Roll src/third_party/dart 027071318f..1279641cdd (65 commits)

dart-lang/sdk@1279641cdd Migration: integrate for-each loops with flow analysis.
dart-lang/sdk@51cd16ecf0 Flow analysis: support for and for-in elements in collections.
dart-lang/sdk@47d2794a71 Implement methods that were missing from ExtensionElementForLink
dart-lang/sdk@a17959b5a0 Log the context in which analysis work is done.
dart-lang/sdk@9198813a55 Revert "Scaffolding for dart:wasm"
dart-lang/sdk@4bf5a72ca0 Flow analysis: support functions whose bodies are expressions.
dart-lang/sdk@b569bf048e Migration: node builder support for new-style typedefs.
dart-lang/sdk@f39a3f188e Scaffolding for dart:wasm
dart-lang/sdk@3729b961bb Use SearchedFiles when searching subtypes for 'analysis.implemented'.
dart-lang/sdk@5d816cbc5d [vm/concurrency] Add FLAG_enable_isolate_groups, still defaulting to true
dart-lang/sdk@480e481708 Throw HttpException instead of String in http impl
dart-lang/sdk@9aa48c2e91 Build local elements in initializers of typed constants.
dart-lang/sdk@af2e729fca Record request / response statistics.
dart-lang/sdk@7bc9515ac2 Fix CompilationUnitMember doc comment. Fixes #27170
dart-lang/sdk@ef39492fd6 Fix support for annotations on extensions
dart-lang/sdk@64efe44e5e Formal parameters of FunctionTypeAlias should be created in @function reference.
dart-lang/sdk@0323fb97bc Migration: support Function() syntax with type formal parameters.
dart-lang/sdk@19533094eb Stop deleting the terminating period on diagnostic messages
dart-lang/sdk@d252efaa49 Migration: node builder support for old-style typedefs
dart-lang/sdk@468800f9d7 Refine the type of FunctionTypeAlias.declaredElement.
dart-lang/sdk@c44c2f1b68 Update LSP readme with instructions for shipped SDKs instead of source
dart-lang/sdk@f2e04caeaf [CFE] Fix CQ race condition with lint status
dart-lang/sdk@bc16959fc7 Reland "[vm/ffi] Dispatch native callbacks through trampolines if we can't ensure callbacks will always be executable."
dart-lang/sdk@48edb2362a [CFE] Update lint for explicit types to also look at fields and top level fields
dart-lang/sdk@5905fe41a9 [CFE] Explicit return types and overrides in constant evaluator
dart-lang/sdk@698c5b1a36 [CFE] Add 'double import' lint
dart-lang/sdk@b625152523 [infra] Remove non-essential test expectations from kernel status files
dart-lang/sdk@c37b5b2edf [vm/ffi] Status: skip test including callbacks on DBC
dart-lang/sdk@095d1c2835 [infra] Clean up general status files
dart-lang/sdk@7f9f4ad774 [cfe] Delete legacy tests
dart-lang/sdk@91c8cf7167 [cfe] Support per folder experimental flags in testcases
dart-lang/sdk@670d40d808 [vm/ffi] regression test for 37511
dart-lang/sdk@c651102793 Remove third_party licenses from LICENSE
dart-lang/sdk@5e5313c8d6 [vm/bytecode] Keep unreachable code for code coverage
dart-lang/sdk@922c2bfbb0 [vm/bytecode] Include source info and asserts into platform with bytecode
dart-lang/sdk@457c4349d0 [ package:vm_service ] Prep for 1.1.1 release
dart-lang/sdk@861cae4853 [vm/fuzzer] Disable stacktrace option on FFI runs
dart-lang/sdk@f50a566476 Enclose local variables in default values of optional formal parameters.
dart-lang/sdk@239a6d1449 [vm, bytecode] Annotate super calls and clear lookup caches on reload.
dart-lang/sdk@ee38a308da thread feature set into linter debug util
dart-lang/sdk@afc259ea6b [dart2js] Add 'any' to DartType.
dart-lang/sdk@1d9b6427ef Prepare to publish analyzer version 0.38.1.
dart-lang/sdk@a5007cde35 Clean up an obsolete TODO comment
dart-lang/sdk@293eee940b [dart2js] Revert to old Closure.toString() implementation for old RTI.
dart-lang/sdk@f842b03de5 linter visit hooks for extensions
dart-lang/sdk@3fe9ba152f Migration: implement Variables._decorateDirectSupertypes.
dart-lang/sdk@d67eaefe77 Add more tests of the visibility of extension members
dart-lang/sdk@72923471c4 strict-inference failures for untyped parameters:
dart-lang/sdk@bfc7f8c4b5 Fix crash parsing invalid constructor initializer
dart-lang/sdk@3e69627752 Fix type argument parsing crash
dart-lang/sdk@e2777454cc Fix dartfmt bug
dart-lang/sdk@d95bb2d74f [ package:vm_service ] Analyze package:vm_service on bots
dart-lang/sdk@38ca72a3e7 [dart2js] TrivialRuntimeTypesNeed should not say non-generic classes need type arguments.
dart-lang/sdk@04bd34ed87 Issue 37916. The name of ConstructorName cannot be shadowed.
dart-lang/sdk@3865187956 [nnbd_migration] already-migrated types with 1:1 type args & params.
dart-lang/sdk@e2fee9c0dd [pkg:vm_service] fix an issue serializing list args
dart-lang/sdk@37183f8865 [observatory] Remove stale asserts from heap snapshot processing.
dart-lang/sdk@396613d884 [pkg:vm_service] be more lenient towards nulls json fields in the java library
dart-lang/sdk@0fee296130 [vm] Add wasmer to third_party, and support building rust libraries
dart-lang/sdk@663a8630e6 Revert "[vm/ffi] Dispatch native callbacks through trampolines if we can't ensure callbacks will always be executable."
dart-lang/sdk@e8c82c6784 [vm/ffi] Suppress irrelevant lint failures in FFI sources.
dart-lang/sdk@bab592fd28 [vm/ffi] Dispatch native callbacks through trampolines if we can't ensure callbacks will always be executable.
dart-lang/sdk@e34c4319dc Migration: property decorate implicit bottom types.
dart-lang/sdk@c6e2497569 Migration: capture more exception information and make it easier to examine stack traces.
dart-lang/sdk@fc16f8aa58 Apply flutter-engine patch to dump dart_package_config_tag version
dart-lang/sdk@1e79aa6b7e Update LSP readme to link to dart-vim instructions