Give ClangToTMacASan a build type.
Give ClangToTMacASan a build type.

Should heal the bot after https://codereview.chromium.org/1929333003/

BUG=481692
R=dpranke@chromium.org
TBR=dpranke@chromium.org

Review URL: https://codereview.chromium.org/1933423002 .

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#390749}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk