While we might at some point want to explore if this is a win versus
whole modules, for now we have the Tables interface planned.

R=titzer@chromium.org,ahaas@chromium.org,mtrofin@chromium.org,rossberg@chromium.org
BUG=v8:5044

Review-Url: https://codereview.chromium.org/2226053002
Cr-Commit-Position: refs/heads/master@{#38461}