Remove useless 'llvm::' qualifier from names like StringRef and others that are
brought into 'clang' namespace by clang/Basic/LLVM.h


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172323 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/CommentDumper.cpp b/lib/AST/CommentDumper.cpp
index 19d24b2..bd89872 100644
--- a/lib/AST/CommentDumper.cpp
+++ b/lib/AST/CommentDumper.cpp
@@ -244,7 +244,7 @@
 
 } // unnamed namespace
 
-void Comment::dump(llvm::raw_ostream &OS, const CommandTraits *Traits,
+void Comment::dump(raw_ostream &OS, const CommandTraits *Traits,
                    const SourceManager *SM) const {
   const FullComment *FC = dyn_cast<FullComment>(this);
   CommentDumper D(llvm::errs(), Traits, SM, FC);