Rolling v8/tools/clang to f1b8960790c46bf022d178a85a88210a7b10a2a5

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

Review URL: https://codereview.chromium.org/1652723002

Cr-Commit-Position: refs/heads/master@{#33625}