remove Bug873

hoogle-test/ref/Bug873/test.txt

--- Hoogle documentation, generated by Haddock
--- See Hoogle, http://www.haskell.org/hoogle/
-
-@package test
-@version 0.0.0
-
-module Bug873
-
--- | Application operator. This operator is redundant, since ordinary
---   application <tt>(f x)</tt> means the same as <tt>(f <a>$</a> x)</tt>.
---   However, <a>$</a> has low, right-associative binding precedence, so it
---   sometimes allows parentheses to be omitted; for example:
---   
---   <pre>
---   f $ g $ h x  =  f (g (h x))
---   </pre>
---   
---   It is also useful in higher-order situations, such as <tt><a>map</a>
---   (<a>$</a> 0) xs</tt>, or <tt><a>zipWith</a> (<a>$</a>) fs xs</tt>.
---   
---   Note that <tt>(<a>$</a>)</tt> is levity-polymorphic in its result
---   type, so that <tt>foo <a>$</a> True</tt> where <tt>foo :: Bool -&gt;
---   Int#</tt> is well-typed.
-($) :: forall (r :: RuntimeRep) a (b :: TYPE r). (a -> b) -> a -> b
-infixr 0 $
-($$) :: (a -> b) -> a -> b
-infixr 0 $$

hoogle-test/src/Bug873/Bug873.hs

-{-# LANGUAGE Haskell2010 #-}
-module Bug873 (($), ($$)) where
-infixr 0 $$
-
-($$) :: (a -> b) -> a -> b
-f $$ x = f x