Rolling v8/tools/clang to eea56c7ed84778edadbcd43f06793b0311a56b28

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

Review URL: https://codereview.chromium.org/1350993003

Cr-Commit-Position: refs/heads/master@{#30782}