[GHC] #7947: Name conflict with DerivingDataTypeable, StandaloneDeriving and qualified imports

[GHC]

#7947: Name conflict with DerivingDataTypeable, StandaloneDeriving and qualified
imports
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              Reporter:  a.ulrich    |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.7
  (Type checker)                     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  rejects valid program              |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"c41d214a8dd8e2fe7ae9a3446aeda1a07328b831/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c41d214a8dd8e2fe7ae9a3446aeda1a07328b831"
 Unique-ify the names of top-level auxiliary bindings in derived instances
 (Trac #7947)

 The problem and its solution are explained in
    Note [Auxiliary binders]
 in TcGenDeriv
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7947#comment:2>
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