Double allocation size for special json strings on every resize (fixes

src/json-parser.h

 // Copyright 2011 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 117 matching lines @@
 
   struct TokenInfo {
     TokenInfo() : token(Token::ILLEGAL),
                   beg_pos(0),
                   end_pos(0) { }
     Token::Value token;
     int beg_pos;
     int end_pos;
   };
 
-  static const int kInitialSpecialStringSize = 100;
+  static const int kInitialSpecialStringSize = 1024;
 
 
  private:
   Handle<String> source_;
   int source_length_;
   Handle<SeqAsciiString> seq_source_;
 
   bool is_sequential_ascii_;
   // Current and next token
   TokenInfo current_;
   TokenInfo next_;
   Isolate* isolate_;
   uc32 c0_;
   int position_;
 
 
   Handle<String> string_val_;
   double number_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_JSON_PARSER_H_