tests/basics/builtin_range: Add tests for negative slicing of range.

tests/basics/builtin_range.py

@@ -33,6 +33,10 @@ print(range(1, 4)[0:])
 print(range(1, 4)[1:])
 print(range(1, 4)[:-1])
 print(range(7, -2, -4)[:])
+print(range(1, 100, 5)[5:15:3])
+print(range(1, 100, 5)[15:5:-3])
+print(range(100, 1, -5)[5:15:3])
+print(range(100, 1, -5)[15:5:-3])
 
 # zero step
 try: