am 0cad8ee2: am 572e9acc: Merge "Always use prebuilt clang, even if we\'re...
am 0cad8ee2: am 572e9acc: Merge "Always use prebuilt clang, even if we\'re explicitly building clang/LLVM."
* commit '0cad8ee2':
Always use prebuilt clang, even if we're explicitly building clang/LLVM.