akr	2008-01-30 14:29:37 +0900 (Wed, 30 Jan 2008)

  New Revision: 15339

  Modified files:
    trunk/ChangeLog
    trunk/string.c
    trunk/test/ruby/test_utf16.rb

  Log:
    * string.c (rb_str_succ): use wrapped character as a carry for
      ASCII incompatible encoding.


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/string.c?r1=15339&r2=15338&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15339&r2=15338&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/test/ruby/test_utf16.rb?r1=15339&r2=15338&diff_format=u