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/UndefinedAssignmentChecker.cpp b/lib/StaticAnalyzer/Checkers/UndefinedAssignmentChecker.cpp
index 6995633..840ae3d 100644
--- a/lib/StaticAnalyzer/Checkers/UndefinedAssignmentChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/UndefinedAssignmentChecker.cpp
@@ -24,7 +24,7 @@
 namespace {
 class UndefinedAssignmentChecker
   : public Checker<check::Bind> {
-  mutable llvm::OwningPtr<BugType> BT;
+  mutable OwningPtr<BugType> BT;
 
 public:
   void checkBind(SVal location, SVal val, const Stmt *S,