Roll src/third_party/dart fb14babf59..2e8d912848 (65 commits)

dart-lang/sdk@2e8d912848 [developer] Allow async end events to have independent arguments.
dart-lang/sdk@09ce6d30e7 [vm, service] Remove _collectAllGarbage.
dart-lang/sdk@bc24702149 Add missing parens to static_extension_getter_setter_conflicts_test.dart
dart-lang/sdk@e9dcb9f45d fix typo in factory; add mixin text for protected
dart-lang/sdk@ab5e36bcfb fix for prefer_int_literals
dart-lang/sdk@41c5b81818 [cfe] Special error message for illegal override of a setter by a field
dart-lang/sdk@e9c3eebef1 [infra] Add handling of signed SDK directories to promote.py
dart-lang/sdk@ff0fda7732 [cfe] Handle UnknownType using defaultDartType
dart-lang/sdk@129d4a6144 simplify dartfix output
dart-lang/sdk@41bf7443d4 update parser to report static constructor
dart-lang/sdk@cb1efb8d27 update parser to allow "late var" in NNBD
dart-lang/sdk@99007f3a3e remove duplicate error generation in ClassBuilder
dart-lang/sdk@fb73cb19e6 update parser to report MixinDeclaresConstructor error
dart-lang/sdk@355df2a354 split AstBuilder endClassConstructor out of endClassMethod event
dart-lang/sdk@b6f6240013 fix extension factory declaration in AST
dart-lang/sdk@618b56d24d fix conditional expression parsing with NNBD enabled
dart-lang/sdk@fb446e5768 [dartdevc] Properly emitting JS interop anonymous classes
dart-lang/sdk@4a4f7cbde3 Migration: Handle uses of typedef types as expressions.
dart-lang/sdk@0b0c113b52 Migration: rework edge builder prefix handling.
dart-lang/sdk@028d97bb1d Migration: handle references to already-migrated fields.
dart-lang/sdk@cbe135255d Migration: add support for most compound assignments.
dart-lang/sdk@daaa6657b1 Migration: fix a corner case of post-dominator analysis.
dart-lang/sdk@23d28932f0 Remove asserts in TypeProviderImpl.
dart-lang/sdk@3d3bbc2dbf Remove 'strongMode' flag in StaticTypeAnalyzerTest.
dart-lang/sdk@7f8398e484 Changes to MockSdk to make it usable in linter.
dart-lang/sdk@116cfbaa2d Issue 38198. Fix for isMoreSpecific() extension.
dart-lang/sdk@9391e15cfd [ package:vm_service ] Added support for service protocol version 3.27.
dart-lang/sdk@13a69b5631 [vm/bytecode] Replace ICData constant pool entries with DynamicCall
dart-lang/sdk@cff9c587f4 Tighten call conventions in allowInterop
dart-lang/sdk@c0f49b05dd [vm/debugger] Pick the correct context async variable in bytecode frames.
dart-lang/sdk@68dede011e [ VM / Service ] Add getCpuProfileSamples RPC which returns a minimally processed sample buffer.
dart-lang/sdk@84db16381d [vm] Remove dead --load_deferred_eagerly and dependent code tracking for library prefixes.
dart-lang/sdk@1d6ab52f38 [vm] Fix CoreSnapshotSize and StandaloneSnapshotSize to account for the image page size.
dart-lang/sdk@fd7676e0bc Fix language_2/config_import_corelib_test
dart-lang/sdk@5247036142 fix for convert_to_if_element
dart-lang/sdk@e1dc432102 [vm/fuzzer]  Update rerun output and parser script
dart-lang/sdk@2c219ddb07 Replace AnalysisContextFactory with TestAnalysisContext.
dart-lang/sdk@67cdae394f Add import fix in missed case
dart-lang/sdk@cf94c3a2fa Additional tests verifying interaction between mixins, static extensions, and visiblity annotations (protected, visibleForTemplate, visibleForTesting).
dart-lang/sdk@ffd50c0dc5 Report EXTENSION_AS_EXPRESSION, set type fo dynamic.
dart-lang/sdk@254d0776d4 [vm/fuzzer] Fix bug where FFI caused dart crash
dart-lang/sdk@f5c0e2e362 [vm/concurrency] Ensure instance size in class table is either 0 or the correct size
dart-lang/sdk@eb60f0531e Support a fix to add a setter, both in extensions and elsewhere
dart-lang/sdk@e227ffa955 Migration: improve handling of catch clauses.
dart-lang/sdk@40454f0918 Fix language_2/f_bounded_quantification2_test
dart-lang/sdk@836f6de0f4 Fix language_2/f_bounded_quantification4_test
dart-lang/sdk@8ad0832bcb [vm/bytecode] Use static types of parameters when compiling from bytecode
dart-lang/sdk@1354ec93db fix for prefer_for_elements_to_map_fromIterable
dart-lang/sdk@152aa5a6ed fix calls following null-assertion operator
dart-lang/sdk@4e4047a52f fix extension abstract method error
dart-lang/sdk@a689f8df06 corelib_2/unsigned_shift_test fixes
dart-lang/sdk@6f4ceb887e [vm] Provide a couple more gdb helpers to print stack traces.
dart-lang/sdk@d7c96f323d Migration: handle prefixed class references.
dart-lang/sdk@0d63ce1d0c Clean up MockSdkElements.
dart-lang/sdk@8022f885af Stop using TestTypeProvider in analyzer_plugin.
dart-lang/sdk@e55a1e0f3a [vm/fuzzer] Add filter keywords to collect_data
dart-lang/sdk@c6a6add465 [vm/fuzzer] Count re-runs
dart-lang/sdk@d964c50cff clear contents on TemplateElement#setInnerHtml before appending
dart-lang/sdk@c8f3f132ad [vm, snapshot] Use data image pages for kFull snapshots.
dart-lang/sdk@add83ad185 Fix language_2/generic_no_such_method_dispatcher_test
dart-lang/sdk@f5b53276ce Fix language_2/compile_time_constant_static5_test
dart-lang/sdk@e34d71feee [nnbd_migration] Implement if/for in map/set
dart-lang/sdk@da235a57f8 [nnbd_migration] Fix for elements for list literals
dart-lang/sdk@6ae9709bcb Create TestTypeProvider as TypeProviderImpl on MockSdkElements.
dart-lang/sdk@46d7064108 Stop using resolutionMap in DDC.

DEPS

@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'fb14babf59584ee3aa9b524341455f2a3f3fca91',
+  'dart_revision': '2e8d9128486b57b437046045d898a7ff0e6f9289',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/licenses_third_party

-Signature: b4990680edf3c9cdbf728c324c5f11af
+Signature: 8430918929b4abe4fd737ce8b1e47b92
 
 UNUSED LICENSES:
 
@@ -7440,6 +7440,7 @@ FILE: ../../../third_party/dart/runtime/llvm_codegen/bit/main.cc
 FILE: ../../../third_party/dart/runtime/llvm_codegen/bit/test.cc
 FILE: ../../../third_party/dart/runtime/llvm_codegen/codegen/main.cc
 FILE: ../../../third_party/dart/runtime/observatory/lib/src/elements/tree_map.dart
+FILE: ../../../third_party/dart/runtime/observatory/lib/src/repositories/timeline_base.dart
 FILE: ../../../third_party/dart/runtime/tools/dartfuzz/dartfuzz_api_table.dart
 FILE: ../../../third_party/dart/runtime/tools/dartfuzz/dartfuzz_ffiapi.dart
 FILE: ../../../third_party/dart/runtime/tools/dartfuzz/gen_api_table.dart