Roll src/third_party/dart 29c00e28f350..f99631b12c4a (29 commits)

[skia-flutter-autoroll]

Roll src/third_party/dart 29c00e2..f99631b (29 commits)

https://dart.googlesource.com/sdk.git/+log/29c00e28f350..f99631b12c4a

git log 29c00e2..f99631b --date=short --first-parent --format='%ad %ae %s'
2020-05-14 rnystrom@google.com Show human-readable output when an analyzer test fails.
2020-05-14 rnystrom@google.com Migrate language_2/generic_methods to NNBD.
2020-05-14 bkonyi@google.com [ package:dds ] Added authentication code support
2020-05-14 alexmarkov@google.com [vm/nnbd] Auto-detect null-safety from entry point in kernel compilers
2020-05-14 scheglov@google.com Use TypeSystem.isNullable() for MISSING_RETURN.
2020-05-13 srawlins@google.com Migrator: Update non-nullable Details click region
2020-05-13 bkonyi@google.com [ VM / DartDev ] Default to port 8181 for DDS
2020-05-13 rmacnak@google.com [vm, service] Remove use of expectAsync from service tests.
2020-05-13 rmacnak@google.com [vm, service] Remove service extension test cases that become impossible in Dart 3.
2020-05-13 nshahan@google.com [ddc] Cleanup "ReleaseX64NNBD" from ddb script
2020-05-13 sra@google.com [dart2js] strong mode exception values are never null
2020-05-13 markzipan@google.com [dartdevc] Adding hot restart tests for late and lazy fields.
2020-05-13 mfairhurst@google.com [nnbd_migration] Add hint actions to stack trace info
2020-05-13 mfairhurst@google.com [nnbd_migration] Create a simple node mapper, part of instrumentation
2020-05-13 mfairhurst@google.com [nnbd_migration] Build hint actions in node builder.
2020-05-13 mfairhurst@google.com [nnbd_migration] Add model for hint actions stored on nullability nodes.
2020-05-13 mfairhurst@google.com [nnbd_migration] Add header to edit links section
2020-05-13 scheglov@google.com Fix MISSING_RETURN after function expression return type inference.
2020-05-13 brianwilkerson@google.com Add the ability to get feature data from the completion metrics
2020-05-13 srawlins@google.com Update the analyzer_cli README
2020-05-13 rmacnak@google.com [vm] Fix vm/cc/DartGeneratedArrayLiteralMessages.
2020-05-13 zichangguo@google.com [dart:io] Update httpparser size limit in CHANGELOG
2020-05-13 nshahan@google.com [ddc] Fix null check in equality operator
2020-05-13 scheglov@google.com Remove unused extension in NavigationTreeRendererTest.
2020-05-13 paulberry@google.com Migration: remove changedPaths tracking.
2020-05-13 bkonyi@google.com Reland "[ VM / DartDev ] Run all debugging sessions via 'dart run'"
2020-05-13 markzipan@google.com [dartdevc] Fix for hot reloads not properly clearing lazy variable state.
2020-05-13 kevmoo@google.com Fix a number of URIs referring to dartlang.org
2020-05-13 srawlins@google.com Fix trace for unnamed constructors; remove stack frame icon

Created with:
gclient setdep -r src/third_party/dart@f99631b12c4a

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

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