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

llvm-svn: 172323
diff --git a/clang/lib/Lex/PPDirectives.cpp b/clang/lib/Lex/PPDirectives.cpp
index edf91a9..6796f1c 100644
--- a/clang/lib/Lex/PPDirectives.cpp
+++ b/clang/lib/Lex/PPDirectives.cpp
@@ -1426,7 +1426,7 @@
     // Compute the module access path corresponding to this module.
     // FIXME: Should we have a second loadModule() overload to avoid this
     // extra lookup step?
-    llvm::SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path;
+    SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path;
     for (Module *Mod = SuggestedModule; Mod; Mod = Mod->Parent)
       Path.push_back(std::make_pair(getIdentifierInfo(Mod->Name),
                                     FilenameTok.getLocation()));