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/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index 59950ff..b2d52fa 100644
--- a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -669,7 +669,8 @@
       continue;
 
     std::error_code EC;
-    raw_fd_ostream out(mangleName(CU, GCovFileType::GCNO), EC, sys::fs::F_None);
+    raw_fd_ostream out(mangleName(CU, GCovFileType::GCNO), EC,
+                       sys::fs::OF_None);
     if (EC) {
       Ctx->emitError(Twine("failed to open coverage notes file for writing: ") +
                      EC.message());