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/Rewrite/FixItRewriter.cpp b/lib/Rewrite/FixItRewriter.cpp
index aa57813..caa7d06 100644
--- a/lib/Rewrite/FixItRewriter.cpp
+++ b/lib/Rewrite/FixItRewriter.cpp
@@ -63,7 +63,7 @@
     int fd;
     std::string Filename = FixItOpts->RewriteFilename(Entry->getName(), fd);
     std::string Err;
-    llvm::OwningPtr<llvm::raw_fd_ostream> OS;
+    OwningPtr<llvm::raw_fd_ostream> OS;
     if (fd != -1) {
       OS.reset(new llvm::raw_fd_ostream(fd, /*shouldClose=*/true));
     } else {