53d805ff63
This week we moved some other "plugin analysis options" code into the private API. This continues that work, in order to add plugin source options into the AnalysisOptionsImpl signature code. The classes are deprecated as far as the public API is concerned, encoded with a `@Deprecated` export. This is not reflected in api.txt. Change-Id: Ie95851a7b0d54ef6abb8fb1e2b41294fbc5db836 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/447841 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com>