PersistentHandles were attached to the LocalHeap when passed in through
the constructor but not when created inside LocalHeap using
EnsurePersistentHandles.

Bug: v8:10315
Change-Id: Id24d36c935776cb0b643521c465763da7fbffd06
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2326630
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69167}