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diff --git a/antlr4-cpp-runtime-4.9.2-source/install/include/antlr4-runtime/tree/ErrorNodeImpl.h b/antlr4-cpp-runtime-4.9.2-source/install/include/antlr4-runtime/tree/ErrorNodeImpl.h
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+++ b/antlr4-cpp-runtime-4.9.2-source/install/include/antlr4-runtime/tree/ErrorNodeImpl.h
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+/* 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 "tree/ErrorNode.h"
+#include "tree/TerminalNodeImpl.h"
+#include "misc/Interval.h"
+
+#include "support/Any.h"
+
+namespace antlr4 {
+namespace tree {
+
+  /// <summary>
+  /// Represents a token that was consumed during resynchronization
+  ///  rather than during a valid match operation. For example,
+  ///  we will create this kind of a node during single token insertion
+  ///  and deletion as well as during "consume until error recovery set"
+  ///  upon no viable alternative exceptions.
+  /// </summary>
+  class ANTLR4CPP_PUBLIC ErrorNodeImpl : public virtual TerminalNodeImpl, public virtual ErrorNode {
+  public:
+    ErrorNodeImpl(Token *token);
+    ~ErrorNodeImpl() override;
+
+    virtual antlrcpp::Any accept(ParseTreeVisitor *visitor) override;
+  };
+
+} // namespace tree
+} // namespace antlr4