gollvm: sync with LLVM trunk

Update for renamed header file.

Change-Id: I19654ac8441c8aecddd1d0e24ad0f25b1f40f45c
Reviewed-on: https://go-review.googlesource.com/82176
Reviewed-by: Cherry Zhang <cherryyz@google.com>
diff --git a/goparse-llvm.cpp b/goparse-llvm.cpp
index 0d8548b..8e9f84b 100644
--- a/goparse-llvm.cpp
+++ b/goparse-llvm.cpp
@@ -20,7 +20,7 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/Analysis/TargetLibraryInfo.h"
-#include "llvm/CodeGen/CommandFlags.h"
+#include "llvm/CodeGen/CommandFlags.def"
 #include "llvm/IR/DiagnosticInfo.h"
 #include "llvm/IR/DiagnosticPrinter.h"
 #include "llvm/IR/LLVMContext.h"