[llvm] [UTC] Record TBAA semantics when autogenerating check lines (PR #147670)

[Nikita Popov via llvm-commits]

nikic wrote:

> > I'd suggest running this over all tests that have tbaa metadata to check whether any of the assertions fire.
> 
> Assuming this is to be done locally, or should we take the opportunity to update all UTC (possibly just version 5) tests that have TBAA metadata, here or separately?

Just locally for now. But updating tests in a followup may also make sense.

https://github.com/llvm/llvm-project/pull/147670