Fixed regexp zone issue

src/zone.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 47 matching lines @@
   // allocating new segments of memory on demand using malloc().
   static inline void* New(int size);
 
   // Delete all objects and free all memory allocated in the Zone.
   static void DeleteAll();
 
   // Returns true if more memory has been allocated in zones than
   // the limit allows.
   static inline bool excess_allocation();
 
+  static inline void adjust_segment_bytes_allocated(int delta);
+
  private:
-  friend class Segment;
 
   // All pointers returned from New() have this alignment.
   static const int kAlignment = kPointerSize;
 
   // Never allocate segments smaller than this size in bytes.
   static const int kMinimumSegmentSize = 8 * KB;
 
   // Never keep segments larger than this size in bytes around.
   static const int kMaximumKeptSegmentSize = 64 * KB;
 
@@ skipping 96 matching lines @@
   ~ZoneScope() {
     if (--nesting_ == 0 && mode_ == DELETE_ON_EXIT) Zone::DeleteAll();
   }
 
   // For ZoneScopes that do not delete on exit by default, call this
   // method to request deletion on exit.
   void DeleteOnExit() {
     mode_ = DELETE_ON_EXIT;
   }
 
+  static int nesting() { return nesting_; }
+
  private:
   ZoneScopeMode mode_;
   static int nesting_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ZONE_H_