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...er ranges, as in '1-5'. But the compiler lexes '1-5' as '1' followed by '-5', so a special rule is required to treat that as a range. It is documented as follows: "The peculiar last form of RangePiece is due to the fact that the "-" is included in the TokInteger, hence 1-5 gets lexed as two consecutive TokInteger�s, with values 1 and -5, instead of "1", "-", and "5"." I propose that we add '..' as a new punctuation token and use it to indicate ranges: 1..5, -10..-5. Then we can deprecate the hyphen range construc...