Add Dart_New.

include/dart_api.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
  *
  * Dart is a class-based programming language for creating structured
@@ skipping 1680 matching lines @@
 DART_EXPORT Dart_Handle Dart_InvokeClosure(Dart_Handle closure,
                                            int number_of_arguments,
                                            Dart_Handle* arguments);
 
 // DEPRECATED: The API below is a temporary hack.
 DART_EXPORT int64_t Dart_ClosureSmrck(Dart_Handle object);
 
 // DEPRECATED: The API below is a temporary hack.
 DART_EXPORT void Dart_ClosureSetSmrck(Dart_Handle object, int64_t value);
 
-// --- Methods and Fields ---
+// --- Constructors, Methods, and Fields ---
+
+/**
+ * Invokes a constructor, creating a new object.
+ *
+ * This function allows hidden constructors (constructors with leading
+ * underscores) to be called.
+ *
+ * \param clazz A class or an interface.
+ * \param constructor_name The name of the constructor to invoke.  Use
+ *   Dart_Null() to invoke the unnamed constructor.  This name should
+ *   not include the name of the class.
+ * \param number_of_arguments Size of the arguments array.
+ * \param arguments An array of arguments to the constructor.
+ *
+ * \return If the constructor is called and completes successfully,
+ *   then the new object. If an error occurs during execution, then an
+ *   error handle is returned.
+ */
+DART_EXPORT Dart_Handle Dart_New(Dart_Handle clazz,
+                                 Dart_Handle constructor_name,
+                                 int number_of_arguments,
+                                 Dart_Handle* arguments);
 
 /**
  * Invokes a method or function.
  *
  * The 'target' parameter may be an object, class, or library.  If
  * 'target' is an object, then this function will invoke an instance
  * method.  If 'target' is a class, then this function will invoke a
  * static method.  If 'target' is a library, then this function will
  * invoke a top-level function from that library.
  *
@@ skipping 258 matching lines @@
 
 // --- Profiling support ----
 
 // External pprof support for gathering and dumping symbolic
 // information that can be used for better profile reports for
 // dynamically generated code.
 DART_EXPORT void Dart_InitPprofSupport();
 DART_EXPORT void Dart_GetPprofSymbolInfo(void** buffer, int* buffer_size);
 
 #endif  // INCLUDE_DART_API_H_