... until after the main bulk of code generation, which will soon run on a
different thread.

R=jarin@chromium.org

Bug: v8:6048
Change-Id: I12aaaf2725e2422f588c29f50084eb77b56ad9a5
Reviewed-on: https://chromium-review.googlesource.com/505616
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45340}