[GHC] #9127: Don't warn about pattern-bindings of the form `let !_ = rhs`

[GHC]

#9127: Don't warn about pattern-bindings of the form `let !_ = rhs`
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        Reporter:  refold            |            Owner:
            Type:  bug               |           Status:  closed
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.8.2
      Resolution:  fixed             |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Changes (by simonpj):

 * status:  patch => closed
 * resolution:   => fixed


Comment:

 Thank you.  I edited a bit more and committed
 {{{
 commit aa18a46d85a4995f0daea63d44e627f11d03ce95
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Mon Jun 9 13:58:23 2014 +0100

     Improve documentation for -fwarn-unused-binds
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9127#comment:15>
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