[GHC] #12083: ghc-8.0.1-rc4: tyConRoles sees a TcTyCon

[GHC]

#12083: ghc-8.0.1-rc4: tyConRoles sees a TcTyCon
-------------------------------------+-------------------------------------
        Reporter:  _deepfire         |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1-rc4
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:  Yes.
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3573
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Ryan Scott <ryan.gl.scott@…>):

 In [changeset:"01af8aee30c743ab505e164ac9aa02149fbe4b9e/ghc" 01af8ae/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="01af8aee30c743ab505e164ac9aa02149fbe4b9e"
 Add regression tests for #12083

 Summary:
 Commit 0c9d9dec0a924a4f34f4cff26d004143c028861a (the fix for #13271) fixed
 the
 programs in #12083. This adds regression tests for them.

 Test Plan: make test TEST="T12083a T12083b"

 Reviewers: austin, bgamari

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #12083

 Differential Revision: https://phabricator.haskell.org/D3573
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12083#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler