[Haskell-cafe] Fractional/negative fixity?

Here's an idea that (I think) is useful and backwards compatible: fractional and negative fixity. There have been 3 separate times where I've wanted an operator just above 0 ($) but less than 1 (>>= or >>>), or else just below 0 (like a superlow $$) infix 0.5 ??? infix -1 $$ The only change would be internal to compiler, wouldn't it? Since fixity is just syntactic sugar, there should be no semantic difficulties. Dan