[GHC] #10056: Inconsistent precedence of ~

[GHC]

#10056: Inconsistent precedence of ~
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        Reporter:  crockeea          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
  (Parser)                           |
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10059            |  Differential Revisions:
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Comment (by RyanGlScott):

 One potential hiccup is that the
 [https://www.haskell.org/onlinereport/decls.html#sect4.4.2 Haskell 98
 Report] requires all operators to have an integer precedence from 0 to 9,
 so we'd have to deviate from that to achieve option 1.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10056#comment:21>
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