am d621e5be: Add mac clang 3.6 prebuilts for LLVM rebase to r222494.

* commit 'd621e5bee12a4f0edf1cf493298367534b73027f':
  Add mac clang 3.6 prebuilts for LLVM rebase to r222494.
  Initial empty repository
tree: 2870c3f83e1fce57f945011fc43eacc850276b03
  1. bin/
  2. lib/
  3. lib64/
  4. update.sh