[GHC] #2708: Error message should suggest UnboxedTuples language extension

[GHC]

#2708: Error message should suggest UnboxedTuples language extension
---------------------------------+------------------------------------------
    Reporter:  tim               |       Owner:                   
        Type:  feature request   |      Status:  new              
    Priority:  normal            |   Component:  Compiler (Parser)
     Version:  6.9               |    Severity:  minor            
    Keywords:                    |    Testcase:                   
Architecture:  Unknown/Multiple  |          Os:  Unknown/Multiple 
---------------------------------+------------------------------------------
 If I compile this code:

 {{{
 module Foo where
 import GHC.Integer

 foo x y =
    case x `quotRemInteger` y of
     (# y, z #) -> 42
 }}}

 I get:

 {{{
 foo.hs:7:5: Parse error in pattern
 }}}

 It would be better if the error message suggested using
 {{{-XUnboxedTuples}}}.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2708>
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