tests: Fix tests with sets to print sorted set.

tests/basics/iter-of-iter.py

@@ -5,4 +5,4 @@ print(list(i))
 i = iter(iter({1:2, 3:4, 5:6}))
 print(sorted(i))
 i = iter(iter({1, 2, 3}))
-print(list(i))
+print(sorted(i))

tests/basics/set1.py

@@ -4,4 +4,4 @@ s = {1}
 print(s)
 
 s = {3, 4, 3, 1}
-print(s)
+print(sorted(s))