[GHC] #7453: unsafe coerce without extensions

[GHC]

#7453: unsafe coerce without extensions
----------------------------------------+-----------------------------------
Reporter:  guest                        |          Owner:                         
    Type:  bug                          |         Status:  new                    
Priority:  normal                       |      Component:  Compiler (Type checker)
 Version:  7.6.1                        |       Keywords:                         
      Os:  Unknown/Multiple             |   Architecture:  Unknown/Multiple       
 Failure:  GHC accepts invalid program  |      Blockedby:                         
Blocking:                               |        Related:                         
----------------------------------------+-----------------------------------

Comment(by ekmett):

 You don't even need a newtype:

 {{{
 ghci> let unsafeCoerce v = z () where z :: () -> v; z = aux where aux =
 const v
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7453#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler