Use allowed_experiments.json when building SDK summary (reland).

Landed: https://dart-review.googlesource.com/c/sdk/+/149052
Reverted: https://dart-review.googlesource.com/c/sdk/+/149201
Change-Id: Ief9430c58254fe8cbdcedc8d3678c61d4c086f67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149364
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>

https://dart.googlesource.com/sdk/+/6a551f8d54c4accd410b709de09a2f5b1c76ef60
1 file changed
tree: 48d4a5436cc828caf0f8dece56f8f5a9433f0bba
  1. commits.json