[GHC] #3396: Parsing LANGUAGE pragma causes GHC panic

[GHC]

#3396: Parsing LANGUAGE pragma causes GHC panic
-------------------+--------------------------------------------------------
Reporter:  radekm  |          Owner:                   
    Type:  bug     |         Status:  new              
Priority:  normal  |      Component:  Compiler (Parser)
 Version:  6.10.4  |       Severity:  normal           
Keywords:          |       Testcase:                   
      Os:  Linux   |   Architecture:  Unknown/Multiple 
-------------------+--------------------------------------------------------
 Parsing LANGUAGE pragma like this (notice the '*'):

 {{{
 {-# LANGUAGE * #-}
 }}}

 causes:

 {{{
 ghc: panic! (the 'impossible' happened)
   (GHC version 6.10.4 for i386-unknown-linux):
         getOptions'.parseLanguage(2) went past eof token
 }}}

 Instead of the '*' you can write another character like '+', '-' etc.
 I'm using GHC from Arch Linux's repository (package: ghc 6.10.4-1).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3396>
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