Update clang-tools to ab/5784477 am: 6d3e46afe2 am: 9f8c9b134c
am: e784a03615

Change-Id: Id3e372633a132cf66cabf48ee1e08f0881cd376f
tree: 5bead554b988f76020863fe727915d7261320281
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml