R=clemensh@chromium.org
TEST=cctest/test-wasm-shared-engine
BUG=v8:7424

Change-Id: I32510f33fb88c2f1a79864e6033d3aa53ad9fe48
Reviewed-on: https://chromium-review.googlesource.com/1150149
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54727}