ac966ba4c3
With forwarding blocks fully computed before sliding, we can update pointers as we slide. Towards parallel compaction. Reduces compaction time in dart2js hello (without marking): 33036 us -> 30685 us (-7.1%) N=10 Bug: https://github.com/dart-lang/sdk/issues/30978 Change-Id: Ied800ea60233bc8a87880f92092ee078a95be2e5 Reviewed-on: https://dart-review.googlesource.com/27781 Reviewed-by: Erik Corry <erikcorry@google.com>