PreParser fix: propagate reference erros properly.

src/preparse-data-format.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 33 matching lines @@
   static const int kHasErrorOffset = 2;
   static const int kFunctionsSizeOffset = 3;
   static const int kSymbolCountOffset = 4;
   static const int kSizeOffset = 5;
   static const int kHeaderSize = 6;
 
   // If encoding a message, the following positions are fixed.
   static const int kMessageStartPos = 0;
   static const int kMessageEndPos = 1;
   static const int kMessageArgCountPos = 2;
-  static const int kMessageTextPos = 3;
+  static const int kIsReferenceErrorPos = 3;
+  static const int kMessageTextPos = 4;
 
   static const unsigned char kNumberTerminator = 0x80u;
 };
 
 
 } }  // namespace v8::internal.
 
 #endif  // V8_PREPARSE_DATA_FORMAT_H_