[GHC] #13326: Implement `-ferror-limit` for GHC

[GHC]

#13326: Implement `-ferror-limit` for GHC
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           Reporter:  coopercm       |             Owner:  (none)
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Clang has an option `-ferror-limit=n` which is very handy for development
 since it lets you focus on the first error message when there is a long
 list of errors. A similar flag for GHC would be very helpful.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13326>
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