BUG=chromium:439743
LOG=y
TEST=mjsunit
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/733893008

Cr-Commit-Position: refs/heads/master@{#25731}

TEST=mjsunit/compiler/regress-lena
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/784153006

Cr-Commit-Position: refs/heads/master@{#25722}