R=bmeurer@chromium.org, v8-arm-ports@googlegroups.com
BUG=v8:5951

Review-Url: https://codereview.chromium.org/2685943003
Cr-Original-Commit-Position: refs/heads/master@{#43090}
Committed: https://chromium.googlesource.com/v8/v8/+/c46ccef921ee754d60283d132b9d19f64ae7b1ff
Review-Url: https://codereview.chromium.org/2685943003
Cr-Commit-Position: refs/heads/master@{#43199}