d2e08e4952
Concurrent sweeping introduces non-determinism in heap iteration order, which can affect the result of (e.g.) Symbols::Compact. Bug: https://github.com/dart-lang/sdk/issues/34638 Change-Id: If5afa41d23b0eabdcd67d0f30d0f8ab1acb3bbd6 Reviewed-on: https://dart-review.googlesource.com/c/77677 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>