[GHC] #16270: Report multiple errors during parsing

[GHC]

#16270: Report multiple errors during parsing
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        Reporter:  int-index         |                Owner:  (none)
            Type:  feature request   |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.6.3
  (Parser)                           |
      Resolution:  fixed             |             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 Marge Bot <ben+marge-bot@…>):

 In [changeset:"f37efb11b957a21f3048f7005a234f96350ff938/ghc"
 f37efb11/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="f37efb11b957a21f3048f7005a234f96350ff938"
 Lexer: turn some fatal errors into non-fatal ones

 The following previously fatal lexer errors are now non-fatal:

   * errors about enabling `LambdaCase`
   * errors about enabling `NumericUnderscores`
   * errors about having valid characters in primitive strings

 See #16270
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16270#comment:2>
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