Port 798ffc9d

R=jarin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:6077
LOG=N

Review-Url: https://codereview.chromium.org/2774883003
Cr-Commit-Position: refs/heads/master@{#44124}