tree e6e3bc1645ef23e457e6cdb854f8a084c8fc69da
parent 8195fd8c64d05325e2e99e8c50cd07f9b29078cd
author Ryan Macnak <rmacnak@google.com> 1533769148 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1533769148 +0000

[vm, gc] Refactor PageSpace::CollectGarbage to ensure the safepoint and task count remain well-scoped even with early exits.

Landing this separately makes it easier to see the changes for concurrent marking.

Bug: https://github.com/dart-lang/sdk/issues/34002
Change-Id: I8e2e2ca0cddbaba079cf54b6e8cff65c42e21684
Reviewed-on: https://dart-review.googlesource.com/68980
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>