[GHC] #12390: List rules for `Coercible` instances

[GHC]

#12390: List rules for `Coercible` instances
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  ghci059
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3634
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by tellah):

 * testcase:   => ghci059
 * status:  new => patch
 * differential:   => Phab:D3634


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12390#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler