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/StackAddrEscapeChecker.cpp b/lib/StaticAnalyzer/Checkers/StackAddrEscapeChecker.cpp
index 41e5917..3046f96 100644
--- a/lib/StaticAnalyzer/Checkers/StackAddrEscapeChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/StackAddrEscapeChecker.cpp
@@ -26,8 +26,8 @@
 namespace {
 class StackAddrEscapeChecker : public Checker< check::PreStmt<ReturnStmt>,
                                                check::EndPath > {
-  mutable llvm::OwningPtr<BuiltinBug> BT_stackleak;
-  mutable llvm::OwningPtr<BuiltinBug> BT_returnstack;
+  mutable OwningPtr<BuiltinBug> BT_stackleak;
+  mutable OwningPtr<BuiltinBug> BT_returnstack;
 
 public:
   void checkPreStmt(const ReturnStmt *RS, CheckerContext &C) const;