We were missing a few declarations, especially fully-qualified
declarations in cc files like here: https://crrev.com/c/1396459

R=mlippautz@chromium.org

Bug: v8:8616
No-Try: true
Change-Id: Iff93f1cd4fde18ac7fc8391e459e6bdcb4eb8f9b
Reviewed-on: https://chromium-review.googlesource.com/c/1397706Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58585}