ref: f094734a68bceb5a7c03a42e4d4533ffa7b5e8f7
dir: /tests/RecMdl.hs/
module RecMdl where import RecMdlA data B = B1 | B2 A deriving (Show) h :: Int -> Int h x = x + 100 f :: Int -> Int f x = g (x+1) main :: IO () main = do print (f 10) print (B2 (A2 B1))