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/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp b/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
index e1e8b0b..83eff9d 100644
--- a/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
@@ -30,7 +30,7 @@
                                                check::PostStmt<CallExpr>,
                                                check::EndPath,
                                                check::DeadSymbols> {
-  mutable llvm::OwningPtr<BugType> BT;
+  mutable OwningPtr<BugType> BT;
 
 public:
   /// AllocationState is a part of the checker specific state together with the