Jake Macdonald
5285faad67
add isConst to constructors, add const and factory keywords to augmentations, part of https://github.com/dart-lang/sdk/issues/56516 Change-Id: I424031e22636678da5c9c428099100bfac748daf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/382662 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Jake Macdonald <jakemac@google.com>