Miscellaneous 0.11.0 stuff

[oscbyspro]

I'll use this thread to document various minor changes.

[oscbyspro]

It looks like Swift 6.0 (#91) lets us mark BinaryInteger.exactly(_:) as borrowing. So the borrowing get problem must be solved. It also looks like Bool && @autoclosure () -> Bool consumes the righ-hand-side, which is a bit unfortunate in the borrowing case, but I can perhaps work around it using T.isSigned ? x : false instead of T.isSigned && x.

[oscbyspro]

It looks like I missed one of the Nonzero/ilog2() methods in (#90). I'll remove the version that doesn't reduce the number of failure modes. I.e. Nonzero<some UnsignedInteger> guarantees non-optional results, but the other one doesn't.

[oscbyspro]

I'll also fix a bug in one of my TestKit2 randomness utilities that may or may not cause spurious expectation failures.