f70f544e57
This improves: - stepping through assignment expressions in devtools - hover on fields when on lhs Change-Id: Ifee0d7b0fe2de65494182f6818b9dbcd0a79087d Reviewed-on: https://dart-review.googlesource.com/21820 Commit-Queue: Vijay Menon <vsm@google.com> Reviewed-by: Alan Knight <alanknight@google.com>