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diff --git a/deps/v8/third_party/antlr4/runtime/Cpp/runtime/src/tree/ParseTreeProperty.h b/deps/v8/third_party/antlr4/runtime/Cpp/runtime/src/tree/ParseTreeProperty.h
new file mode 100644
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+++ b/deps/v8/third_party/antlr4/runtime/Cpp/runtime/src/tree/ParseTreeProperty.h
@@ -0,0 +1,44 @@
+/* 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 "antlr4-common.h"
+
+namespace antlr4 {
+namespace tree {
+
+/// <summary>
+/// Associate a property with a parse tree node. Useful with parse tree
+/// listeners that need to associate values with particular tree nodes, kind of
+/// like specifying a return value for the listener event method that visited a
+/// particular node. Example:
+///
+/// <pre>
+/// ParseTreeProperty&lt;Integer&gt; values = new
+/// ParseTreeProperty&lt;Integer&gt;(); values.put(tree, 36); int x =
+/// values.get(tree); values.removeFrom(tree);
+/// </pre>
+///
+/// You would make one decl (values here) in the listener and use lots of times
+/// in your event methods.
+/// </summary>
+template <typename V>
+class ANTLR4CPP_PUBLIC ParseTreeProperty {
+ public:
+  virtual V get(ParseTree* node) { return _annotations[node]; }
+  virtual void put(ParseTree* node, V value) { _annotations[node] = value; }
+  virtual V removeFrom(ParseTree* node) {
+    auto value = _annotations[node];
+    _annotations.erase(node);
+    return value;
+  }
+
+ protected:
+  std::map<ParseTree*, V> _annotations;
+};
+
+}  // namespace tree
+}  // namespace antlr4