[debugger] flood function for stepping on throw.

src/debug/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_DEBUG_H_
 #define V8_DEBUG_DEBUG_H_
 
 #include "src/allocation.h"
 #include "src/arguments.h"
 #include "src/assembler.h"
@@ skipping 386 matching lines @@
                      Handle<Object> break_point_object,
                      int* source_position);
   bool SetBreakPointForScript(Handle<Script> script,
                               Handle<Object> break_point_object,
                               int* source_position,
                               BreakPositionAlignment alignment);
   void ClearBreakPoint(Handle<Object> break_point_object);
   void ClearAllBreakPoints();
   void FloodWithOneShot(Handle<JSFunction> function,
                         BreakLocatorType type = ALL_BREAK_LOCATIONS);
-  void FloodHandlerWithOneShot();
   void ChangeBreakOnException(ExceptionBreakType type, bool enable);
   bool IsBreakOnException(ExceptionBreakType type);
 
   // Stepping handling.
   void PrepareStep(StepAction step_action,
                    int step_count,
                    StackFrame::Id frame_id);
   void PrepareStepIn(Handle<JSFunction> function);
+  void PrepareStepOnThrow();
   void ClearStepping();
   void ClearStepOut();
   void EnableStepIn();
   bool IsStepping() { return thread_local_.step_count_ > 0; }
   bool StepNextContinue(BreakLocation* location, JavaScriptFrame* frame);
   bool StepOutActive() { return thread_local_.step_out_fp_ != 0; }
 
   void GetStepinPositions(JavaScriptFrame* frame, StackFrame::Id frame_id,
                           List<int>* results_out);
 
@@ skipping 332 matching lines @@
   static void PatchDebugBreakSlot(Isolate* isolate, Address pc,
                                   Handle<Code> code);
   static void ClearDebugBreakSlot(Isolate* isolate, Address pc);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_H_