Roll src/third_party/dart a554c8be6b..d0052c1b31 (22 commits)

dart-lang/sdk@d0052c1b31 [dart:_http] Fix potentially large List<int> allocation in _WebSocketPerMessageDeflate.processIncomingMessage
dart-lang/sdk@4aa820bbf5 Reland "[vm/bytecode] Switch kernel service dill to bytecode if building Dart SDK with --bytecode"
dart-lang/sdk@f20f619050 Add 'variance' experimental flag.
dart-lang/sdk@139889e2b9 Fix a couple of diagnostic messages and re-order several constants to restore alphabetic ordering
dart-lang/sdk@daa22105fd More clean up for TypeSystem tests.
dart-lang/sdk@3129ad9585 Only report a non-const initializer for const variables; fixes #35985
dart-lang/sdk@f8f7a5a6c1 Migration: add a test case documenting the need for definite assignment integration
dart-lang/sdk@366b4056e6 Migration: add a test case documenting a problem with back-propagation of non-nullability
dart-lang/sdk@25401964ab Pass proper file URI under both Windows and not
dart-lang/sdk@f35f9e8e24 [kernel] Don't lazy load classes when dills are concatenated
dart-lang/sdk@b65120eae7 [vm/ffi] Update CSP after Enter/ExitSafepoint slow-path stubs on ARM64.
dart-lang/sdk@2a12c63631 [cfe] Use SuperPropertySet for super assignment
dart-lang/sdk@4b72fffaaf [cfe] Use VariableSet for variable assignment
dart-lang/sdk@2153a06b82 [cfe] Use PropertySet for property assignment
dart-lang/sdk@4fd7bf7356 [cfe] Split inference of super property get from instance property get
dart-lang/sdk@f8f37c131b [cfe] Split inference of super method invocation from instance method invocation
dart-lang/sdk@7d2ebd3ce9 [cfe] Introduce InternalExpression
dart-lang/sdk@2c6f779a76 [cfe] Remove legacyMode
dart-lang/sdk@392cd3b26f [cfe] Delete InferredTypeVisitor
dart-lang/sdk@71534fe18c [cfe] Make *Impl classes
dart-lang/sdk@15ccf4c703 [cfe] Remove unneeded Judgments
dart-lang/sdk@7985b187ab [cfe] Remove ExpressionJudgment.inferredType

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': 'a554c8be6ba94cc2c7312dbde5eb85537a35f607',
+  'dart_revision': 'd0052c1b31a3a2bb31514c9c4a6e1900c56d069f',
 
   # 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: 7e7be36362074f2cd4641156a163704f
+Signature: 1e7719d82f0f646ae4f45d0f9b8c73c2
 
 UNUSED LICENSES: