[GHC] #10278: ApiAnnotations : Nested forall loses forall annotation

[GHC]

#10278: ApiAnnotations : Nested forall loses forall annotation
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        Reporter:  alanz             |                   Owner:  alanz
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.10.2
       Component:  Compiler          |                 Version:  7.10.1
  (Parser)                           |                Keywords:
      Resolution:                    |  ApiAnnotations
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by alanz):

 @jstolarek has pointed out that the offending function is
 `HsTypes.mk_forall_ty`

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10278#comment:1>
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