[GHC] #17: Separate warnings for unused local and top-level bindings

[GHC]

#17: Separate warnings for unused local and top-level bindings
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        Reporter:  magunter          |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  lowest            |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  None
      Resolution:  None              |                Keywords:  -fwarn-
Operating System:  Unknown/Multiple  |  unused-binds newcomer
 Type of failure:  None/Unknown      |            Architecture:
      Blocked By:                    |  Unknown/Multiple
 Related Tickets:  #3283             |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:  Phab:D591
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"aead01902e1c41e85b758dbafd15e60d08956374/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="aead01902e1c41e85b758dbafd15e60d08956374"
 driver: split -fwarn-unused-binds into 3 flags (fixes #17)

 Summary: New flags:

  -fwarn-unused-top-binds
  -fwarn-unused-local-binds
  -fwarn-unused-pattern-binds

 Test Plan: `tests/rename/should_compile/T17` tests

 Correct other tests

 Reviewers: austin, rwbarton

 Reviewed By: austin, rwbarton

 Subscribers: rwbarton, carter, thomie

 Differential Revision: https://phabricator.haskell.org/D591

 GHC Trac Issues: #17
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/17#comment:17>
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