-
Simon Peyton Jones authored
See Note [Lazy flattening] in TcFlatten. Lazy flattening was an apparently good idea which actually made the type inference engine go a LOTS slower in T3064. So I switched it off again.
096b7e66
See Note [Lazy flattening] in TcFlatten. Lazy flattening was an apparently good idea which actually made the type inference engine go a LOTS slower in T3064. So I switched it off again.