[GHC] #13943: Compiler infinite loop with GHC-8.2

[GHC]

#13943: Compiler infinite loop with GHC-8.2
-------------------------------------+-------------------------------------
        Reporter:  vagarenko         |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.2.1-rc3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by RyanGlScott):

 This behavior started with commit 748b79741652028827b6225c36b8ab55d22bdeb0
 (`Use top-level instances to solve superclasses where possible`).

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13943#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler