GHC panics if closing #-} for a LANGUAGE pragma is not on the same line

This came up on #haskell:

{-#
  LANGUAGE ExistentialQuantification
#-}

main = undefined

This sends ghc-6.10.3 into a tailspin:

$ ghc --make foo.hs
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.3 for x86_64-unknown-linux):
 getOptions'.parseLanguage(1) went past eof token

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Moving the #-} onto the LANGUAGE line fixes this.

Trac metadata

Trac field	Value
Version	6.10.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler (Parser)
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