Roll src/third_party/dart 4e52082..2497606 (11 commits)

https://dart.googlesource.com/sdk.git/+log/4e520824f502..2497606fed87

git log 4e52082..2497606 --date=short --first-parent --format='%ad %ae %s'
2020-05-11 vegorov@google.com [vm/compiler] Avoid redundant spilling of SIMD values.
2020-05-11 vegorov@google.com [vm/compiler] Include linear scan tracing code in release builds
2020-05-11 alexmarkov@google.com [vm/aot/tfa] Avoid conflicting names of temporary variables in signature tree shaker
2020-05-11 kustermann@google.com [vm/isolate] Prefer .dart_tool/package_config.json over .packages
2020-05-11 scheglov@google.com Resolve operands of '==='.
2020-05-11 scheglov@google.com Perform return type inference using BodyInferenceContext.
2020-05-11 danny@tuppeny.com Fix handling of static members in LSP completion
2020-05-11 danny@tuppeny.com Don't included instance fields in completion lists
2020-05-11 sra@google.com [dart2js] Update codegen/logical_expression_test
2020-05-11 oss@simonbinder.eu Include plugin results in LSP autocomplete
2020-05-11 sra@google.com [dart2js] ignore --use-old-rti option

Created with:
  gclient setdep -r src/third_party/dart@2497606fed87

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter-engine
Please CC dart-vm-team@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Bug: None
Tbr: dart-vm-team@google.com

Author: skia-flutter-autoroll

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': '4e520824f502f584b4ff05d2d7f8a9b07aa3fbc7',
+  'dart_revision': '2497606fed8728b29a3491e6945e43f47efe113f',
 
   # 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

@@ -1,4 +1,4 @@
-Signature: 2f6992f71d20cae44f7d4af6b3c47d59
+Signature: 2dbb661928dd1e475a50e75fda85ab7e
 
 UNUSED LICENSES: