Include the right header for toupper

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103073 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/ClangASTNodesEmitter.cpp b/utils/TableGen/ClangASTNodesEmitter.cpp
index f9366d9..addc6ba 100644
--- a/utils/TableGen/ClangASTNodesEmitter.cpp
+++ b/utils/TableGen/ClangASTNodesEmitter.cpp
@@ -5,7 +5,7 @@
 #include <string>
 #include <map>
 #include <utility>
-#include <clocale>
+#include <cctype>
 using namespace llvm;
 
 //===----------------------------------------------------------------------===//