Fix build of LookupResult.cpp from aeda128 with Visual C++.

Author: dyung

llvm/lib/DebugInfo/GSYM/LookupResult.cpp

@@ -11,6 +11,7 @@
 #include "llvm/Support/Format.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/raw_ostream.h"
+#include <ciso646>
 
 using namespace llvm;
 using namespace gsym;