Fix imports in tests (need to fix asserts)

Tests.hs

+import Prelude                        hiding (seq)
 import Test.HUnit
 import Test.Framework                        (defaultMain, testGroup)
 import Test.Framework.Providers.HUnit
 
-import Bench (seq, g13, g124, g1245)
+import Bench                                 (seq)
+import Utils                                 (g13, g124, g1245)
 
 main = defaultMain tests
 
@@ -13,6 +15,6 @@ tests = [ testGroup "Sequential tests" [
             ]
         ]
 
-test1 = assertEqual "g13 11" "{size,10}" (Bench.seq g13 11)
-test2 = assertEqual "g124 157" "{size,133}" (Bench.seq g124 157)
-test3 = assertEqual "g1245 157" "{size,134}" (Bench.seq g1245 157)
+test1 = assertEqual "g13 11" "{size,10}" (seq g13 11)
+test2 = assertEqual "g124 157" "{size,133}" (seq g124 157)
+test3 = assertEqual "g1245 157" "{size,134}" (seq g1245 157)