[GHC] #14135: PatternSynonyms regression in GHC HEAD (expectJust mkOneConFull)

[GHC]

#14135: PatternSynonyms regression in GHC HEAD (expectJust mkOneConFull)
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  dfeuer
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:
                                     |  PatternSynonyms
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3981
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by dfeuer):

 I missed something that seems very important: the test failure Carlos
 describes does ''not'' occur with non-slow `./validate`, presumably
 because that doesn't enable debugging for the stage2 compiler. Indeed, I
 believe the problem with T13822 occurs ''without'' Carlos's patch! I'll
 verify tonight.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14135#comment:20>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler