[GHC] #12986: Ignore case when parsing language pragmas

[GHC]

#12986: Ignore case when parsing language pragmas
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        Reporter:  dfeuer            |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
  (Parser)                           |
      Resolution:                    |             Keywords:
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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Comment (by goldfire):

 This user-facing feature looks like it should go through
 [https://github.com/ghc-proposals/ghc-proposals/ ghc-proposals] first.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12986#comment:1>
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