* OptionsValidator was defined in the `src/plugin/` directory (the only
file in there), which I found confusing. Moved it to
`src/analysis_options/`.
* OptionsFileValidator, and a few related classes, were defined in the
`src/task/` (the last file in there!), so I moved it to the same
place.
There is more to tidy in here, but this is a simple file-move.
Change-Id: I8f4c5cc0ae4e76eb6c17249457c50ab69c82590d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/443147
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Samuel Rawlins <srawlins@google.com>
Sam Rawlins
0ffd2849e4