53321309da
They were supposed to be used as a part of the closure conversion pass, which is now obsoleted. Change-Id: Ie063f6c44487df7cd5d21895e8edc03251525d5f Reviewed-on: https://dart-review.googlesource.com/68662 Commit-Queue: Dmitry Stefantsov <dmitryas@google.com> Reviewed-by: Jens Johansen <jensj@google.com>