we need to shore up UI tests for datum::Array<'_, T> #2205
Description
Basically the same issue as #2204 except it may be possible to bypass certain lifetime constraints by picking the lifetime 'static for it. I'm almost certain there's some way to do it without unsafe and @mhov mentioned it while we were discussing adding new API, though it's unclear to me if it's preexisting or requires the new API design. Writing this down so I don't forget like I did with #2204.
I want to outmode this type with simpler replacements anyways, but this may accelerate any plan to deprecate it.