* This message should only be reported by the parser; the
error raised in the analyzer was strictly duplicate.
* This message theoretically used to mention "async*" or
"sync*" depending on the modifier that the function in
question listed. However, listing one modifier or the
other is a red herring, and may confuse the user; any
function declared with one or the other is a "generator",
and the error applies equally to a "generator" using one
or the other modifier.
Bug: https://github.com/dart-lang/sdk/issues/43665
Change-Id: I6ef1f5c055473170e7563222f6f0a6c56a4ad5f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/210801
Commit-Queue: Samuel Rawlins <srawlins@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
