Update clang-tools to ab/6459482 am: 33d5dddf1c am: 441f03682c am: 1b8137b6ae am: 06f296c094 am: ddc733ea99 am: 8a6f0b6ec8

Change-Id: Ib09863703993ba496eb85be60a2d0bf9d66cb1e5
tree: f234c78f2d11442380658d4d16f03a87694110b1
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml