Roll src/third_party/dart 06c3d7ad3a..7acecda2cc (12 commits)

dart-lang/sdk@7acecda2cc [vm/ffi] Fix FFI Utf8 example.
dart-lang/sdk@e3b3c6fa28 [vm] Rename 3head flutter patch after re-land of concurrency change
dart-lang/sdk@2cb5303782 [infra] Update checked in SDKs to 2.4.0
dart-lang/sdk@fce43ebc4e [ddk] Pass environmentDefines to CFE through CompilerOptions
dart-lang/sdk@5450d08ca1 Add support for analyzer static error tests.
dart-lang/sdk@0425997b31 Second attempt to reland "[vm/concurrency] Introduce concept of Isolate Groups"
dart-lang/sdk@5470159054 [vm, gc] Produce a proper error message when crashing due to lack of memory at isolate startup.
dart-lang/sdk@bfc7d21da6 Remove useless dart2js_extra/class_test
dart-lang/sdk@572619b639 [vm, bytecode] Fix vm/cc/CompileFunctionOnHelperThread.
dart-lang/sdk@4de495fccc [vm, compiler] Remove dead stub ICCallThroughFunction.
dart-lang/sdk@8a1dcdae68 Graduate 'flutter' domain from experimental, remove unused methods and fields.
dart-lang/sdk@a945888627 Discard constructors and fields temporarily to get valid code compiling

Author: bkonyi

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': '06c3d7ad3a33b7c4d42067c1a24c9279c321071f',
+  'dart_revision': '7acecda2cc220965d4129e1794e933514aad56c8',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -364,7 +364,7 @@ deps = {
    Var('dart_git') + '/package_resolver.git' + '@' + Var('dart_package_resolver_tag'),
 
   'src/third_party/dart/tools/sdks':
-   {'packages': [{'version': 'version:2.3.3-dev.0.0', 'package': 'dart/dart-sdk/${{platform}}'}], 'dep_type': 'cipd'},
+   {'packages': [{'version': 'version:2.4.0', 'package': 'dart/dart-sdk/${{platform}}'}], 'dep_type': 'cipd'},
 
   # WARNING: end of dart dependencies list that is cleaned up automatically - see create_updated_flutter_deps.py.
 

ci/licenses_golden/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: f5fe7081d04877d56a90cf48e34de6c6
+Signature: 74e3d32179e3937fa393e59647d8eedb
 
 UNUSED LICENSES: