[GHC] #10959: MINIMAL pragma and default implementations

[GHC]

#10959: MINIMAL pragma and default implementations
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        Reporter:  basvandijk        |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by basvandijk):

 I guess Bryan added because it's the only required method to implement
 since `toEncoding` is defined in terms of it.

 However I just read in the GHC user guide that:

 "If no MINIMAL pragma is given in the class declaration, it is just as if
 a pragma {-# MINIMAL op1, op2, ..., opn #-} was given, where the opi are
 the methods (a) that lack a default method in the class declaration..."

 So this means we can just safely remove the pragma.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10959#comment:2>
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