Basic: import OwningPtr<> into clang namespace

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index 610b790..318a713 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -3636,7 +3636,7 @@
     // Walk through identifiers in external identifier sources.
     if (IdentifierInfoLookup *External
                             = Context.Idents.getExternalIdentifierLookup()) {
-      llvm::OwningPtr<IdentifierIterator> Iter(External->getIdentifiers());
+      OwningPtr<IdentifierIterator> Iter(External->getIdentifiers());
       do {
         StringRef Name = Iter->Next();
         if (Name.empty())