Process correctly stepping into function calls

src/debug.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 252 matching lines @@
 
   static void NewBreak(StackFrame::Id break_frame_id);
   static void SetBreak(StackFrame::Id break_frame_id, int break_id);
   static StackFrame::Id break_frame_id() {
     return thread_local_.break_frame_id_;
   }
   static int break_id() { return thread_local_.break_id_; }
 
   static bool StepInActive() { return thread_local_.step_into_fp_ != 0; }
   static void HandleStepIn(Handle<JSFunction> function,
+                           Handle<Object> holder,
                            Address fp,
                            bool is_constructor);
   static Address step_in_fp() { return thread_local_.step_into_fp_; }
   static Address* step_in_fp_addr() { return &thread_local_.step_into_fp_; }
 
   static EnterDebugger* debugger_entry() {
     return thread_local_.debugger_entry_;
   }
   static void set_debugger_entry(EnterDebugger* entry) {
     thread_local_.debugger_entry_ = entry;
@@ skipping 562 matching lines @@
   Debug::AddressId id_;
   int reg_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 #endif  // V8_DEBUG_H_