a1d5eba2ae
This is not yet enforced in analysis_options.yaml due to a just-closed bug in linter. Change-Id: I450ed2a24f1de7657b2f535a1dcdabdb1f9afbbb Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/226321 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com>