Fixed test memory leaks

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 40 matching lines @@
 
 // Note: The implementation is inherently not thread safe. Do not use
 // from multi-threaded code.
 
 class Zone {
  public:
   // Allocate 'size' bytes of memory in the Zone; expands the Zone by
   // allocating new segments of memory on demand using malloc().
   static inline void* New(int size);
 
+  template <typename T>
+  static inline T* NewArray(int length);
+
   // 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:
@@ skipping 120 matching lines @@
 
  private:
   ZoneScopeMode mode_;
   static int nesting_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ZONE_H_