[GHC] #15028: Deprecate and Remove Data.Semigroup.Option/First/Last (was: Deprecate and Remove Data.Semigroup.Option)

[GHC]

#15028: Deprecate and Remove Data.Semigroup.Option/First/Last
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        Reporter:  andrewthad        |                Owner:  (none)
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Compiler          |              Version:  8.4.1
      Resolution:                    |             Keywords:  base
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by andrewthad):

 * cc: ekmett (added)
 * version:  8.2.2 => 8.4.1
 * milestone:  8.6.1 => 8.8.1


Old description:

> Since the Semigroup-Monoid Proposal has landed, the data type `Option`
> from `Data.Semigroup` is now obsolete. I propose that it be marked
> deprecated in GHC 8.6 and removed in GHC 8.10.

New description:

 Since the Semigroup-Monoid Proposal has landed, the data type `Option`
 from `Data.Semigroup` is now obsolete. I propose that it be marked
 deprecated in GHC 8.6 and removed in GHC 8.10.

 --- EDIT ---

 A proposal on the libraries mailing list for the removal of First and Last
 from Data.Monoid met with a positive response:
 https://mail.haskell.org/pipermail/libraries/2018-April/028712.html

 I figured it would be best to track all of these on the same ticket. In a
 response to the aforementioned mailing list thread, Edward Kmett suggested
 that the timing for deprecation and removal be GHC 8.8 and GHC 8.10
 respectively. This will make it possible to adhere to the three-release
 policy with ease.

--

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15028#comment:1>
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