Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC

F_{None,Text,Append} are kept for compatibility since r334221.

llvm-svn: 367800
diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 84552e2..60ce517 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -119,7 +119,7 @@
   std::unique_ptr<llvm::ToolOutputFile> openOutputFile(StringRef Path) {
     std::error_code EC;
     auto F = llvm::make_unique<llvm::ToolOutputFile>(Path, EC,
-                                                     llvm::sys::fs::F_None);
+                                                     llvm::sys::fs::OF_None);
     if (EC) {
       Diags.Report(diag::err_fe_unable_to_open_output) << Path << EC.message();
       F.reset();