b8cf6ba3a1
This is super awkward. I had "added support" in https://github.com/dart-lang/sdk/commit/f27e78af6b20 but it was really just internal wiring. I honestly do not remember what I was thinking or why I landed that CL incomplete. Change-Id: Iad6800e11df189879acad4d189d6f8c68ee673f4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/449602 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com>