Update clang-tools to ab/5392938
am: dbcf41219d

Change-Id: I171193a3d1c3189c5793eee0ba465c4111cd9899
tree: 4803b1f101c98bb6ffc31b40ff59c88e38ffb2fe
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml