R=bradnelson@chromium.org
TEST=mjsunit/wasm/asm-with-wasm-off
BUG=chromium:696655

Change-Id: I9375d8ac2f111009233dc480529fd0f0e00fe811
Reviewed-on: https://chromium-review.googlesource.com/447398Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43472}