Rolling v8/build to a11885a5fd2ae5b45d97a2bbfe3e33ab13a88f68

Rolling v8/third_party/icu to 4745cccafba8cdb646263fa48b959f386722c155

Rolling v8/tools/clang to 5c08263d87fd4fe23df4f73323cd6146f5dfe7b2

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

Review-Url: https://codereview.chromium.org/2015453004
Cr-Commit-Position: refs/heads/master@{#36533}