Rolling v8/build to 696616b539a8ab8cf400a4cfaead772154c6645c

Rolling v8/tools/clang to 792bfbf9f3126cb51eddd5c6f2f9e9a67393687b

Rolling v8/tools/mb to 5c0ee173872849b18b0837590c094a8579bc0013

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://codereview.chromium.org/2064113003
Cr-Commit-Position: refs/heads/master@{#36983}