Tests: Cover more subscripts (#287)
Tests: Cover more subscripts (#287)

Updated the file with few more different types of subscripts that python allows i.e Added 3 argumented subscripting and also added negative indiced subscripting. To make sure that we are not missing any minute details.
kayhayen/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka