d5cc53a1b8
These linter fixes help prepare analyzer for lints 2.0.0 Change-Id: Ic942fa367965edac479b917cbbb601b30da8b53c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/237766 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com>