• simonpj's avatar
    [project @ 2003-07-28 12:04:27 by simonpj] · ea067762
    simonpj authored
      Fix an obscure but long-standing bug in Type.applyTys
    The interesting case, which previously killed GHC 6.0, is this
    	applyTys (forall a.a) [forall b.b, Int]
    This really can happen, via dressing up polymorphic types with newtype
    clothing.  Here's an example:
    	newtype R = R (forall a. a->a)
    	foo = case undefined :: R of
    Test simplCore/should_compile/simpl0009 uses this as a test case.