Fix some glitches around unicode regexps matching ascii subject strings.

src/objects.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 3218 matching lines @@
   static const int kSize = kLengthOffset + kIntSize;
 
   // Limits on sizes of different types of strings.
   static const int kMaxShortStringSize = 63;
   static const int kMaxMediumStringSize = 16383;
 
   static const int kMaxArrayIndexSize = 10;
 
   // Max ascii char code.
   static const int kMaxAsciiCharCode = unibrow::Utf8::kMaxOneByteChar;
+  static const unsigned kMaxAsciiCharCodeU = unibrow::Utf8::kMaxOneByteChar;

[Lasse Reichstein, 2009/02/06 15:50:56]

This constant is just an alias for a Unibrow constant. It might be better to use
a unibrow constant directly, since all it's used for is to compare to a
unibrow::uchar.

   static const int kMaxUC16CharCode = 0xffff;
 
   // Minimum length for a cons or sliced string.
   static const int kMinNonFlatLength = 13;
 
   // Mask constant for checking if a string has a computed hash code
   // and if it is an array index.  The least significant bit indicates
   // whether a hash code has been computed.  If the hash code has been
   // computed the 2nd bit tells whether the string can be used as an
   // array index.
@@ skipping 978 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_