More missing header inclusions from llvm_unreachable migration.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140369 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/OptTable.cpp b/lib/Driver/OptTable.cpp
index 81e2022..4f5390b 100644
--- a/lib/Driver/OptTable.cpp
+++ b/lib/Driver/OptTable.cpp
@@ -12,6 +12,7 @@
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Option.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/ErrorHandling.h"
#include <algorithm>
#include <map>
using namespace clang::driver;