tests: Test how constant folding works on SM1.
While reviewing !671 (merged) I wrote a few tests that are probably not too fundamental, but since now they exist it makes sense to keep them. !671 (merged) doesn't fix nor break any of them, anyway.
While reviewing !671 (merged) I wrote a few tests that are probably not too fundamental, but since now they exist it makes sense to keep them. !671 (merged) doesn't fix nor break any of them, anyway.