[GHC] #10044: Wrong line number reported with CPP and line beginning with #

[GHC]

#10044: Wrong line number reported with CPP and line beginning with #
-------------------------------------+-------------------------------------
        Reporter:  goldfire          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  low               |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1-rc2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by rwbarton):

 Looks like a bug in clang's C preprocessor (I get the expected behavior
 with gcc's):

 {{{
 rwbarton at morphism:/tmp$ clang -E -x assembler-with-cpp Bug.hs
 # 1 "Bug.hs"
 # 1 "<built-in>" 1
 # 1 "Bug.hs" 2
  {-# LANGUAGE CPP #-}

  module Bug where

  {-
    # hi there!

  -}

  *
 }}}

 Why did it add a blank line after `# hi there!`?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10044#comment:1>
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