Implement forwarding constructors for mixins

runtime/vm/object.cc

 // 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 4397 matching lines @@
     }
   }
   return true;
 }
 
 
 // The compiler generates an implicit constructor if a class definition
 // does not contain an explicit constructor or factory. The implicit
 // constructor has the same token position as the owner class.
 bool Function::IsImplicitConstructor() const {
-  return IsConstructor() &&
-         (token_pos() == Class::Handle(Owner()).token_pos());
+  return IsConstructor() && (token_pos() == end_token_pos());
 }
 
 
 bool Function::IsImplicitClosureFunction() const {
   if (!IsClosureFunction()) {
     return false;
   }
   const Function& parent = Function::Handle(parent_function());
   return (parent.implicit_closure_function() == raw());
 }
@@ skipping 9719 matching lines @@
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   stream->OpenObject();
   stream->CloseObject();
 }
 
 
 }  // namespace dart