49dc34715e
Fixes https://github.com/dart-lang/sdk/issues/61915 I add documentation to a few APIs, and primarily document `newPackage` and `PackageBuilder.addFile`, which already have sufficient doc comments. Change-Id: Ice088c2d76604ccb991d895a1e4bb408c492b963 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/467240 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com>