[patch] bad iinc behavior with large local variable index

[Andrew Huntwork <as...@huntwork.net>]

IINC isn't wide unless the index is > MAX_SHORT or increment is > 
Byte.MAX_BYTE.  but the jvm spec says that for non-wide iinc, index is 
an unsigned byte.  the attached patch fixes my problem.

-- 
"I say to you that the VCR is to the American film
producer and the American public as the Boston
strangler is to the woman home alone."
         -Jack Valenti, President, Motion Picture
          Association of America, Inc., before
          The House Subcommittee on Courts, Civil
          Liberties, and The Administration of
          Justice, August, 1982,
          http://cryptome.org/hrcw-hear.htm