- Leave abstract class StackTrace be an abstract class and

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 1066 matching lines @@
   cls = Class::New<ReceivePort>();
   RegisterPrivateClass(cls, Symbols::_RawReceivePortImpl(), isolate_lib);
   pending_classes.Add(cls);
 
   cls = Class::New<SendPort>();
   RegisterPrivateClass(cls, Symbols::_SendPortImpl(), isolate_lib);
   pending_classes.Add(cls);
 
   const Class& stacktrace_cls = Class::Handle(isolate,
                                               Class::New<Stacktrace>());
-  RegisterClass(stacktrace_cls, Symbols::StackTrace(), core_lib);
+  RegisterPrivateClass(stacktrace_cls, Symbols::_StackTrace(), core_lib);
   pending_classes.Add(stacktrace_cls);
   // Super type set below, after Object is allocated.
 
   cls = Class::New<JSRegExp>();
   RegisterPrivateClass(cls, Symbols::JSSyntaxRegExp(), core_lib);
   pending_classes.Add(cls);
 
   // Initialize the base interfaces used by the core VM classes.
 
   // Allocate and initialize the pre-allocated classes in the core library.
@@ skipping 19582 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart