src/FunctionValues.hs: make an import list explicit.

diff --git a/src/FunctionValues.hs b/src/FunctionValues.hs
index 6271d11e8613ca7f4f988339fe1775c4c59c3bdf..0d84801f3f082532d232e75d40f626018f37f0de 100644 (file)
--- a/src/FunctionValues.hs
+++ b/src/FunctionValues.hs
@@ -17,7 +17,7 @@ where
 import Prelude hiding ( LT )
 import Test.Tasty ( TestTree, testGroup )
 import Test.Tasty.HUnit ( Assertion, testCase )
-import Test.Tasty.QuickCheck ( Arbitrary(..), choose, testProperty )
+import Test.Tasty.QuickCheck ( Arbitrary( arbitrary ), choose, testProperty )
 
 import Assertions ( assertTrue )
 import Cardinal ( Cardinal(..), cwx, cwy, cwz )