DeserializeLazy must be deserialized eagerly since it implements the
lazy deserialization mechanism.

Wasm currently requires their builtins to be immovable; and since we can
only efficiently allocate immovable code objects at deserialization
time, wasm builtins must be eager-loaded for now.

Bug: v8:6624
Change-Id: I9aae60385d4b08a34a52e12711ee1a492476f7cf
Reviewed-on: https://chromium-review.googlesource.com/647707Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47783}