26f08dd036
Parts make it difficult to see dependencies between files and which files can be imported. Replace them with libs. Change-Id: I0a07b48bc3c4a545a420f3efae23f61c4918bdcf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/410400 Commit-Queue: Ömer Ağacan <omersa@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>