Fixes#112272
In addition to the implementation of the UAVsAtEveryStage shader flag
analysis, several unrelated tests have had the `dx.valver` module
metadata defined to avoid setting the UAVsAtEveryStage shader flag in
them.
Example:
```
!dx.valver = !{!0}
!0 = !{i32 1, i32 8}
```
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Co-authored-by: Justin Bogner <mail@justinbogner.com>