[GHC] #12386: Infinite loop when showing type family error

[GHC]

#12386: Infinite loop when showing type family error
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        Reporter:  elliottt          |                Owner:  goldfire
            Type:  bug               |               Status:  closed
        Priority:  highest           |            Milestone:  8.0.3
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Compile-time      |            Test Case:  indexed-
  crash                              |  types/should_fail/T12386
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by simonpj):

 * testcase:   => indexed-types/should_fail/T12386
 * status:  new => closed
 * resolution:   => fixed


Comment:

 Fixed by
 {{{
 commit 3f5673f34a2f761423027bf46f64f7499708725f
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Tue Sep 20 23:31:07 2016 +0100

     A collection of type-inference refactorings.

     This patch does a raft of useful tidy-ups in the type checker.
     I've been meaning to do this for some time, and finally made
     time to do it en route to ICFP.
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12386#comment:9>
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