Roll Dart SDK to 2aac05fe104940cec9806896cdbe3ad2ad9254e1 (#6380)

dart-lang/sdk@2aac05f [vm/bytecode] Add specialized JumpIf* instructions
dart-lang/sdk@0a26599 Adjusted terminology to emphasize "compile-time constant" in commentary
dart-lang/sdk@3f1955a Improve diagnostics about duplication in enums
dart-lang/sdk@8bf0e8e Document distance calculation in diet listener.
dart-lang/sdk@bb78aa6 Remove unneeded type on object read from JSON in a testing script
dart-lang/sdk@30333c5 [vm] Fix bug with generic invocation of fields.
dart-lang/sdk@dc2787a Remove parameterization of type inference
dart-lang/sdk@6c2aaf1 Remove IrRepresentation annotation
dart-lang/sdk@8ef3258 Remove _ConstantExpressionError
dart-lang/sdk@08a549d Update messages_tests wrt multiple analyzer codes
dart-lang/sdk@a4b4b76 VM Service: Allow '$' in scope identifier
dart-lang/sdk@775fab1 Triage mixin declaration tests
dart-lang/sdk@b237cf1 Fix incorrect constructor name in const_native_factory_test
dart-lang/sdk@c9f5c3a [VM] Delete access to Dart 1 parser.
dart-lang/sdk@cfe9202 [dartdevc] fix dart:mirrors type information for generic functions

DEPS

@@ -31,7 +31,7 @@ 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': '7f9a9feae181573cca609fd1b8760d7992176699',
+  'dart_revision': '2aac05fe104940cec9806896cdbe3ad2ad9254e1',
 
   # 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: 092b3d880fec4ee1110a9c0630e6da6a
+Signature: 6d1a89f1dbe2d429129075b165bee8ec
 
 UNUSED LICENSES: