[GHC] #9404: tcInferRho muddies the waters

[GHC]

#9404: tcInferRho muddies the waters
-------------------------------------+-------------------------------------
              Reporter:  goldfire    |            Owner:  goldfire
                  Type:  bug         |           Status:  patch
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.9
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:              |       Blocked By:
  None/Unknown                       |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D469   |
-------------------------------------+-------------------------------------

Comment (by goldfire):

 Simplifying the rule for `($)`, as you requested.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9404#comment:14>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler