Port c63e50ed

Original commit message:
    Rolling v8/tools/clang to 58128abd44c22255def1163d30bc9bb2cc85e15c

    Reland after https://codereview.chromium.org/1241643002/

R=machenbach@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1240833002

Cr-Commit-Position: refs/heads/master@{#29704}