FreeBSD/ports c2e280e (r490683) — devel/llvm-devel pkg-plist distinfo, devel/llvm-devel/files patch-tools_clang_lib_Headers_CMakeLists.txt compiler-rt-safestack_platform.h
Update to a new version (LLVM HEAD is now 9.0.0). Remove clang headers conflicting with FreeBSD headers. I'd throught this was nolonger required, but it seems to still be necessicary in at least some cases. Submitted by: Alfredo Dal'Ava Júnior Differential Revision: https://reviews.freebsd.org/D18879
