[GHC] #11339: Possible type-checker regression in GHC 8.0

[GHC]

#11339: Possible type-checker regression in GHC 8.0
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        Reporter:  hvr               |                Owner:  simonpj
            Type:  bug               |               Status:  closed
        Priority:  highest           |            Milestone:  8.0.2
       Component:  Compiler (Type    |              Version:  8.0.1-rc1
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  typecheck/should_compile/T11339,
                                     |  T11339b, T11339c, T11339d; partial-
                                     |  sigs/should_compile/T11339a
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by goldfire):

 Agreed about comment:4 item (2): it does hit the MR, when reading the
 Report closely. I hadn't known that the MR struck annotated variables if
 they are bound in a pattern binding.

 Otherwise, hooray! This does seem all fixed now -- including rejecting
 (once again) the original program in the description. (That should be
 rejected as it correctly runs afoul of the MR.)

 Thanks! :)

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11339#comment:15>
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