Add support for interpreter bytecode handlers that are deserialized
lazily immediately before they are first used.

Design doc: http://goo.gl/QxZBL2

Bug: v8:6624
Change-Id: Id68844ed14e76ca781b0bfe42c25a94b4fed1ae5
Reviewed-on: https://chromium-review.googlesource.com/750982
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49220}