[C++] clang HEAD 8.0.0 (https://github.com/llvm-mirror/clang.git 4d12ac09c5078ff950fa6fda4d7c2b3495e65408) (https://github.com/llvm-mirror/llvm.git d4b895e81949b2787b254837d6ff2a23f9b583c8)