Don't add the catch frame at a rethrow to the stacktrace.

runtime/vm/object.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 VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include <limits>
 #include "include/dart_api.h"
 #include "platform/assert.h"
@@ skipping 6763 matching lines @@
 
   RawCode* CodeAtFrame(intptr_t frame_index) const;
   void SetCodeAtFrame(intptr_t frame_index, const Code& code) const;
 
   RawSmi* PcOffsetAtFrame(intptr_t frame_index) const;
   void SetPcOffsetAtFrame(intptr_t frame_index, const Smi& pc_offset) const;
   void SetCatchStacktrace(const Array& code_array,
                           const Array& pc_offset_array) const;
   void set_expand_inlined(bool value) const;
 
-  void Append(const Array& code_list, const Array& pc_offset_list) const;
+  void Append(const Array& code_list,
+              const Array& pc_offset_list,
+              const intptr_t offset) const;

[siva, 2014/06/25 22:46:12]

I would rename 'offset' to 'start_index'

[rmacnak, 2014/06/25 23:00:43]

That's better.

 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawStacktrace));
   }
   static RawStacktrace* New(const Array& code_array,
                             const Array& pc_offset_array,
                             Heap::Space space = Heap::kNew);
 
   RawString* FullStacktrace() const;
 
@@ skipping 337 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_