remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.

llvm-svn: 135852
diff --git a/clang/lib/CodeGen/CGVTT.cpp b/clang/lib/CodeGen/CGVTT.cpp
index 49d0938..c8a65fd 100644
--- a/clang/lib/CodeGen/CGVTT.cpp
+++ b/clang/lib/CodeGen/CGVTT.cpp
@@ -30,7 +30,7 @@
   /// vtable.
   const CXXRecordDecl *MostDerivedClass;
 
-  typedef llvm::SmallVector<llvm::Constant *, 64> VTTComponentsVectorTy;
+  typedef SmallVector<llvm::Constant *, 64> VTTComponentsVectorTy;
   
   /// VTTComponents - The VTT components.
   VTTComponentsVectorTy VTTComponents;
@@ -408,7 +408,7 @@
   llvm::raw_svector_ostream Out(OutName);
   CGM.getCXXABI().getMangleContext().mangleCXXVTT(RD, Out);
   Out.flush();
-  llvm::StringRef Name = OutName.str();
+  StringRef Name = OutName.str();
 
   ComputeVTableRelatedInformation(RD, /*VTableRequired=*/true);