Port 81cb8411

R=binji@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:4614
LOG=N

Review-Url: https://codereview.chromium.org/1951643002
Cr-Commit-Position: refs/heads/master@{#36004}