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/Frontend/Warnings.cpp b/lib/Frontend/Warnings.cpp
index 0d678ad..b4c6b0b 100644
--- a/lib/Frontend/Warnings.cpp
+++ b/lib/Frontend/Warnings.cpp
@@ -75,7 +75,7 @@
   else
     Diags.setExtensionHandlingBehavior(DiagnosticsEngine::Ext_Ignore);
 
-  llvm::SmallVector<diag::kind, 10> _Diags;
+  SmallVector<diag::kind, 10> _Diags;
   const IntrusiveRefCntPtr< DiagnosticIDs > DiagIDs =
     Diags.getDiagnosticIDs();
   // We parse the warning options twice.  The first pass sets diagnostic state,