b4cd468761
Fixes trivial typos and adds `@docImport` declarations so that no dangling comment references remain in the `analyzer` package, and enables the `comment_references` lint so that dangling comment references won't be added in the future. Change-Id: I6a6a696466de07d6a07fe9f0afe875019bc44c71 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/450743 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com> Auto-Submit: Paul Berry <paulberry@google.com>