79cf0d2f35
TEST=purely a refactor, so CI Change-Id: Ifa59ea49f315705bd479bee3ccb36875929aa10a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/394762 Commit-Queue: Derek Xu <derekx@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com>