add antlr

lib/antlr4/include/atn/RuleStartState.h

@@ -0,0 +1,25 @@
+/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
+ * Use of this file is governed by the BSD 3-clause license that
+ * can be found in the LICENSE.txt file in the project root.
+ */
+
+#pragma once
+
+#include "atn/ATNState.h"
+
+namespace antlr4 {
+namespace atn {
+
+  class ANTLR4CPP_PUBLIC RuleStartState final : public ATNState {
+  public:
+    RuleStartState();
+
+    RuleStopState *stopState = nullptr;
+    bool isLeftRecursiveRule = false;
+
+    virtual size_t getStateType() override;
+
+  };
+
+} // namespace atn
+} // namespace antlr4