ab217c355f
Have a separate flag from patterns, even though sealed families are to be shipped with patterns -- keep the work separate for now. Change-Id: Ic3996b81d9a61f2a3b1e5137e7cc32ecc8bdec9e Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/267289 Reviewed-by: Paul Berry <paulberry@google.com> Commit-Queue: Kallen Tu <kallentu@google.com> Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Leaf Petersen <leafp@google.com> Reviewed-by: Kevin Moore <kevmoo@google.com>