Fix V8 bug 1084

src/scanner-base.h

 // Copyright 2010 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 391 matching lines @@
     Advance();
     if (c0_ == next) {
       Advance();
       return then;
     } else {
       return else_;
     }
   }
 
   uc32 ScanHexEscape(uc32 c, int length);
+
+  // Scans octal escape sequence. Also accepts "\0" decimal escape sequence.
   uc32 ScanOctalEscape(uc32 c, int length);
 
   // Return the current source position.
   int source_pos() {
     return source_->pos() - kCharacterLookaheadBufferSize;
   }
 
   // Buffers collecting literal strings, numbers, etc.
   LiteralBuffer literal_buffer1_;
   LiteralBuffer literal_buffer2_;
@@ skipping 213 matching lines @@
   // keyword with the current prefix).
   const char* keyword_;
   int counter_;
   Token::Value keyword_token_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCANNER_BASE_H_