Implement the invoke methods (invoke, getField, setField, newInstance, apply) as internal natives.

runtime/vm/dart_entry.h

 // Copyright (c) 2011, 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 VM_DART_ENTRY_H_
 #define VM_DART_ENTRY_H_
 
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
 
@@ skipping 124 matching lines @@
   // On success, returns a RawInstance.  On failure, a RawError.
   static RawObject* InvokeClosure(const Array& arguments,
                                   const Array& arguments_descriptor);
 
   // Invokes the noSuchMethod instance function on the receiver.
   // On success, returns a RawInstance.  On failure, a RawError.
   static RawObject* InvokeNoSuchMethod(const Instance& receiver,
                                        const String& target_name,
                                        const Array& arguments,
                                        const Array& arguments_descriptor);
+
+  // Invokes a generative constructor, redirecting constructor, factory or
+  // redirecting factory. On success, returns a RawInstance. On failure,
+  // a RawError.
+  static RawObject* InvokeConstructor(const Class& klass,
+                                      const Function &constructor,
+                                      const Array& arguments);
 };
 
 
 // Utility functions to call from VM into Dart bootstrap libraries.
 // Each may return an exception object.
 class DartLibraryCalls : public AllStatic {
  public:
   // On success, returns a RawInstance.  On failure, a RawError.
   static RawObject* ExceptionCreate(const Library& library,
                                     const String& exception_name,
@@ skipping 27 matching lines @@
 
   // Gets the _id field of a SendPort/ReceivePort.
   //
   // Returns the value of _id on success, a RawError on failure.
   static RawObject* PortGetId(const Instance& port);
 };
 
 }  // namespace dart
 
 #endif  // VM_DART_ENTRY_H_