Add missing header

dwblaikie · dwblaikie · commit bd4c6a476fd0 · 2021-11-29T16:29:37.000-08:00
diff --git a/llvm/lib/Demangle/DLangDemangle.cpp b/llvm/lib/Demangle/DLangDemangle.cpp
@@ -17,6 +17,7 @@
 #include "llvm/Demangle/StringView.h"
 #include "llvm/Demangle/Utility.h"
 
+#include <cctype>
 #include <cstring>
 #include <limits>
 
