gnubol: The token "IS"

[Michael McKernan <mck@tivoli.mv.com>]

Can anyone think of what the repercussions would be if we were to lex
out the token "IS" as noise?  I don't remember ever having done it,
but I can't think of anyplace that would be affected by it's
absence.  Getting rid of it would reduce the lookahead burden
slightly and simplify parts of the grammar.  

Thanks,

Mike



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