Add a native data property that replaces itself with a real data property

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 2847c3b515713da28ec58441d24cc373d1538ec2..c24445f0d94e27c50909afc111637724e60388ea 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4686,6 +4686,14 @@ class V8_EXPORT Template : public Data {
       AccessControl settings = DEFAULT);
 
   /**
+   * Like SetNativeDataProperty, but V8 will replace the native data property
+   * with a real data property on first access.
+   */
+  void SetLazyDataProperty(Local<Name> name, AccessorNameGetterCallback getter,
+                           Local<Value> data = Local<Value>(),
+                           PropertyAttribute attribute = None);
+
+  /**
    * During template instantiation, sets the value with the intrinsic property
    * from the correct context.
    */