Address review comments.

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 "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 5221 matching lines @@
 };
 
 
 // Internal stacktrace object used in exceptions for printing stack traces.
 class Stacktrace : public Instance {
  public:
   intptr_t Length() const;
   RawFunction* FunctionAtFrame(intptr_t frame_index) const;
   RawCode* CodeAtFrame(intptr_t frame_index) const;
   RawSmi* PcOffsetAtFrame(intptr_t frame_index) const;
-  void Append(const GrowableArray<uword>& stack_frame_pcs,
-              const GrowableObjectArray& func_list,
-              const GrowableObjectArray& code_list) const;
+  void Append(const GrowableObjectArray& func_list,
+              const GrowableObjectArray& code_list,
+              const GrowableObjectArray& pc_offset_list) const;
 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawStacktrace));
   }
-  static RawStacktrace* New(const GrowableArray<uword>& stack_frame_pcs,
-                            const GrowableObjectArray& func_list,
+  static RawStacktrace* New(const GrowableObjectArray& func_list,
                             const GrowableObjectArray& code_list,
+                            const GrowableObjectArray& pc_offset_list,
                             Heap::Space space = Heap::kNew);
 
   const char* ToCStringInternal(bool verbose) const;
 
  private:
   void set_function_array(const Array& function_array) const;
   void set_code_array(const Array& code_array) const;
   void set_pc_offset_array(const Array& pc_offset_array) const;
-  void SetupStacktrace(intptr_t index,
-                       const GrowableArray<uword>& stack_frame_pcs) const;
 
   HEAP_OBJECT_IMPLEMENTATION(Stacktrace, Instance);
   friend class Class;
 };
 
 
 // Internal JavaScript regular expression object.
 class JSRegExp : public Instance {
  public:
   // Meaning of RegExType:
@@ skipping 177 matching lines @@
     if (this->CharAt(i) != str.CharAt(begin_index + i)) {
       return false;
     }
   }
   return true;
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_