Roll src/third_party/dart 34893faa6079..b3396cbdcae1 (36 commits)

[skia-flutter-autoroll]

https://dart.googlesource.com/sdk.git/+log/34893faa6079..b3396cbdcae1

git log 34893fa..b3396cb --date=short --first-parent --format='%ad %ae %s'
2020-02-05 bkonyi@google.com Revert "[ VM / DartDev ] Added support for format and pub commands via standalone VM"
2020-02-05 paulberry@google.com Migration: Improve the tracking of type parameter bounds.
2020-02-05 paulberry@google.com Migration: clean up how decorated type parameter bounds are tracked.
2020-02-05 scheglov@google.com Update RemoveMethodDeclarationTest to be consistent.
2020-02-05 scheglov@google.com Update TypeState.toString() to use getDisplayString().
2020-02-05 devoncarew@google.com [migration tool] fail the CI if the generated files haven't been rebuilt
2020-02-05 bkonyi@google.com [ dartfuzz ] Additional logging cleanup
2020-02-05 brianwilkerson@google.com Add a fix for the prefer_contains lint
2020-02-05 bkonyi@google.com [ VM / DartDev ] Added support for format and pub commands via standalone VM
2020-02-05 sigmund@google.com [dart2js] Make dart:_native_type_data null safe.
2020-02-05 sigmund@google.com Formatting changes to dart:_native_type_data to make dart2js and ddc more similar.
2020-02-05 sigmund@google.com [ddc,dart2js] make dart:typed_data the same in dart2js and ddc and opt-in to null safety.
2020-02-05 brianwilkerson@google.com Mark newly published diagnostics so that links will be generated
2020-02-05 scheglov@google.com Move createAnalysisOptionsFile() call to setUp().
2020-02-05 jwren@google.com Fix the MeanReciprocalRankComputer computation math, the computed MRR computation was not the MRR, follow up tests coming soon.
2020-02-05 markzipan@google.com [tests] Updating tests to not depend on type variable names being conserved.
2020-02-05 rmacnak@google.com [vm] Reject reloads that would remove fields from const objects.
2020-02-05 bkonyi@google.com Reland "[ VM / Service ] Added getClientName, setClientName and requireResumeApproval RPCs"
2020-02-05 brianwilkerson@google.com Remove the lint marker from more fix tests
2020-02-05 alexmarkov@google.com [vm/nnbd] Make sure nullability is not changed after type testing stub is selected
2020-02-05 mfairhurst@google.com [analysis_server] Fix #36352, cannot stop a plugin that isn't running
2020-02-05 dacoharkes@google.com [vm/ffi] Revert erroneous assertions
2020-02-05 dacoharkes@google.com [vm] fix ifdefs after constants refactoring
2020-02-05 jcollins@google.com Consolidate dependency injection and set up FantasyWorkspace tests.
2020-02-05 askesc@google.com [vm/aot] Enable table dispatch by default.
2020-02-05 dmitryas@google.com [cfe] Make context of the null-check operator nullable
2020-02-05 sortie@google.com [nnbd] Reland backporting socket option semantics from NNBD dart:io.
2020-02-05 dacoharkes@google.com [vm/ffi] Support Linux on Arm 32-bit (hardfp)
2020-02-05 athom@google.com [infra] Bump number of test results per pubsub message to 100
2020-02-05 dmitryas@google.com [cfe] Allow member access on Never
2020-02-05 johnniwinther@google.com [cfe] Use inferred types on forwarding constructors
2020-02-05 jakemac@google.com Revert "[dart:io] Backport semantic changes from the dart:io NNBD migration."
2020-02-05 lrn@google.com Tests for language operators and constructs with (non-)nullable operands.
2020-02-05 dacoharkes@google.com [vm/ffi] Replace FFI compiler pipeline
2020-02-05 dacoharkes@google.com [vm] Clean up constants namespacing
2020-02-05 dacoharkes@google.com [vm] Clean up Location templating

Created with:
gclient setdep -r src/third_party/dart@b3396cbdcae1

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