[GHC] #10314: ApiAnnotations: mkHsForAllTy discards parens

[GHC]

#10314: ApiAnnotations: mkHsForAllTy discards parens
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        Reporter:  alanz             |                   Owner:  alanz
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.10.2
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |  ApiAnnotations
 Type of failure:  None/Unknown      |            Architecture:
      Blocked By:                    |  Unknown/Multiple
 Related Tickets:                    |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
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Comment (by alanz):

 The `mkHsForAllTy` case is safe, as `ignoreParens` is only used in the
 conditional part.

 But,

 {{{#!hs
 mk_forall_ty exp  tvs  (L _ (HsParTy ty)) = mk_forall_ty exp tvs ty
 }}}

 does strip parens.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10314#comment:2>
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