==================== IdInfo ====================
lvl_s1yb :: GHC.Base.Int :: [*
			     Str: DmdType m]
F0.f0 :: GHC.Base.Int
	 -> GHC.Base.Int
	 -> GHC.Base.Int
	 -> GHC.Base.Int :: [Arity 3
			     0 -> 0 -> 0 -> *
			     Str: DmdType U(L)LLm]