module T17901 where
data T = A | B | C
f1 wombat1 x = case x of
A -> wombat1 A
B -> wombat1 B
C -> wombat1 C
data S = SA Int | SB
f2 wombat2 x = case x of
SA _ -> wombat2 x
SB -> wombat2 x
data W = WB | WA Int
f3 wombat3 x = case x of
WA _ -> wombat3 x
WB -> wombat3 x