because otherwise cleared weak references require special treatment during
decompression.

Bug: v8:7703
Change-Id: I38761d656c606e7ba7fc3075dffbd855a9f72302
Reviewed-on: https://chromium-review.googlesource.com/c/1322909
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57315}