Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp

8.0.0 final release r356365.  There were no functional changes since the
most recent merge, of 8.0.0 rc5.

Release notes for llvm, clang, lld and libc++ 8.0.0 are now available:

https://llvm.org/releases/8.0.0/docs/ReleaseNotes.html
https://llvm.org/releases/8.0.0/tools/clang/docs/ReleaseNotes.html
https://llvm.org/releases/8.0.0/tools/lld/docs/ReleaseNotes.html
https://llvm.org/releases/8.0.0/projects/libcxx/docs/ReleaseNotes.html

PR:		236062
MFC after:	1 month
X-MFC-With:	r344779

contrib/llvm/tools/clang/lib/Basic/Version.cpp

@@ -36,7 +36,7 @@ std::string getClangRepositoryPath() {
 
   // If the SVN_REPOSITORY is empty, try to use the SVN keyword. This helps us
   // pick up a tag in an SVN export, for example.
-  StringRef SVNRepository("$URL: https://llvm.org/svn/llvm-project/cfe/branches/release_80/lib/Basic/Version.cpp $");
+  StringRef SVNRepository("$URL: https://llvm.org/svn/llvm-project/cfe/tags/RELEASE_800/final/lib/Basic/Version.cpp $");
   if (URL.empty()) {
     URL = SVNRepository.slice(SVNRepository.find(':'),
                               SVNRepository.find("/lib/Basic"));

lib/clang/include/clang/Basic/Version.inc

@@ -8,4 +8,4 @@
 
 #define	CLANG_VENDOR			"FreeBSD "
 
-#define	SVN_REVISION			"356034"
+#define	SVN_REVISION			"356365"

lib/clang/include/lld/Common/Version.inc

@@ -7,4 +7,4 @@
 
 #define LLD_REPOSITORY_STRING "FreeBSD"
 // <Upstream revision at import>-<Local identifier in __FreeBSD_version style>
-#define LLD_REVISION_STRING "356034-1300002"
+#define LLD_REVISION_STRING "356365-1300002"

lib/clang/include/llvm/Support/VCSRevision.h

@@ -1,2 +1,2 @@
 /* $FreeBSD$ */
-#define LLVM_REVISION "svn-r356034"
+#define LLVM_REVISION "svn-r356365"