Fix some glitches around unicode regexps matching ascii subject strings.

src/objects.h

Index: src/objects.h
===================================================================
--- src/objects.h	(revision 1235)
+++ src/objects.h	(working copy)
@@ -3236,6 +3236,7 @@
 
   // 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.