[GHC] #5555: support qualified names for invoking a quasiquoter

[GHC]

#5555: support qualified names for invoking a quasiquoter
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    Reporter:  nfrisby            |       Owner:  pcapriotti      
        Type:  feature request    |      Status:  patch           
    Priority:  normal             |   Milestone:  7.6.1           
   Component:  Compiler (Parser)  |     Version:  7.0.3           
    Keywords:                     |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple   |     Failure:  None/Unknown    
  Difficulty:  Unknown            |    Testcase:                  
   Blockedby:                     |    Blocking:                  
     Related:                     |  
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Changes (by pcapriotti):

  * status:  new => patch


Comment:

 The attached patch adds a "qualified quasi quote" token to the lexer, and
 the corresponding production to the parser.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5555#comment:3>
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