Debugger: clear ICs on activating step-in to correctly flood accessor pairs.

src/debug.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_DEBUG_H_
 #define V8_DEBUG_H_
 
 #include "src/allocation.h"
 #include "src/arguments.h"
 #include "src/assembler.h"
@@ skipping 447 matching lines @@
 
   // Stepping handling.
   void PrepareStep(StepAction step_action,
                    int step_count,
                    StackFrame::Id frame_id);
   void ClearStepping();
   void ClearStepOut();
   bool IsStepping() { return thread_local_.step_count_ > 0; }
   bool StepNextContinue(BreakLocation* location, JavaScriptFrame* frame);
   bool StepInActive() { return thread_local_.step_into_fp_ != 0; }
-  void HandleStepIn(Handle<Object> function_obj, Handle<Object> holder,
-                    Address fp, bool is_constructor);
+  void HandleStepIn(Handle<Object> function_obj, bool is_constructor);
   bool StepOutActive() { return thread_local_.step_out_fp_ != 0; }
 
   // Purge all code objects that have no debug break slots.
   void PrepareForBreakPoints();
 
   // Returns whether the operation succeeded. Compilation can only be triggered
   // if a valid closure is passed as the second argument, otherwise the shared
   // function needs to be compiled already.
   bool EnsureDebugInfo(Handle<SharedFunctionInfo> shared,
                        Handle<JSFunction> function);
@@ skipping 138 matching lines @@
                          Handle<JSObject> event_data,
                          bool auto_continue);
   void NotifyMessageHandler(v8::DebugEvent event,
                             Handle<JSObject> exec_state,
                             Handle<JSObject> event_data,
                             bool auto_continue);
   void InvokeMessageHandler(MessageImpl message);
 
   static bool CompileDebuggerScript(Isolate* isolate, int index);
   void ClearOneShot();
-  void ActivateStepIn(StackFrame* frame);
+  void ActivateStepIn(Handle<JSFunction> function, StackFrame* frame);
   void ClearStepIn();
   void ActivateStepOut(StackFrame* frame);
   void ClearStepNext();
   void RemoveDebugInfoAndClearFromShared(Handle<DebugInfo> debug_info);
   void RemoveDebugInfo(DebugInfo** debug_info);
   void RemoveDebugInfo(DebugInfoListNode* node);
   void RemoveDebugInfo(DebugInfoListNode* prev, DebugInfoListNode* node);
   Handle<Object> CheckBreakPoints(Handle<Object> break_point);
   bool CheckBreakPoint(Handle<Object> break_point_object);
 
@@ skipping 186 matching lines @@
   // several frames above.
   // There is no calling conventions here, because it never actually gets
   // called, it only gets returned to.
   static void GenerateFrameDropperLiveEdit(MacroAssembler* masm);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEBUG_H_