Rolling v8/tools/clang to 0b258f75323161e854038f30334e97ab6aa58eab

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

Review URL: https://codereview.chromium.org/1440623005

Cr-Commit-Position: refs/heads/master@{#31952}