Profiler experiments: Fix debugger in the presence of self-optimization headers

src/full-codegen.h

 // Copyright 2012 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 72 matching lines @@
         scope_(info->scope()),
         nesting_stack_(NULL),
         loop_depth_(0),
         global_count_(0),
         context_(NULL),
         bailout_entries_(info->HasDeoptimizationSupport()
                          ? info->function()->ast_node_count() : 0),
         stack_checks_(2),  // There's always at least one.
         type_feedback_cells_(info->HasDeoptimizationSupport()
                              ? info->function()->ast_node_count() : 0),
-        ic_total_count_(0) { }
+        ic_total_count_(0),
+        has_self_optimization_header_(false) { }
 
   static bool MakeCode(CompilationInfo* info);
 
+  // Returns the platform-specific size in bytes of the self-optimization
+  // header.
+  static int self_optimization_header_size();
+
   // Encode state and pc-offset as a BitField<type, start, size>.
   // Only use 30 bits because we encode the result as a smi.
   class StateField : public BitField<State, 0, 1> { };
   class PcField    : public BitField<unsigned, 1, 30-1> { };
 
   static const char* State2String(State state) {
     switch (state) {
       case NO_REGISTERS: return "NO_REGISTERS";
       case TOS_REG: return "TOS_REG";
     }
@@ skipping 672 matching lines @@
   Scope* scope_;
   Label return_label_;
   NestedStatement* nesting_stack_;
   int loop_depth_;
   int global_count_;
   const ExpressionContext* context_;
   ZoneList<BailoutEntry> bailout_entries_;
   ZoneList<BailoutEntry> stack_checks_;
   ZoneList<TypeFeedbackCellEntry> type_feedback_cells_;
   int ic_total_count_;
+  bool has_self_optimization_header_;
   Handle<FixedArray> handler_table_;
   Handle<JSGlobalPropertyCell> profiling_counter_;
 
   friend class NestedStatement;
 
   DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_