[DirectX] Fix resource binding analysis incorrectly removing duplicates (#152253)
The resource binding analysis was incorrectly reducing the size of the
`Bindings` vector by one element after sorting and de-duplication. This
led to an inaccurate setting of the `HasOverlappingBinding` flag in the
`DXILResourceBindingInfo` analysis, as the truncated vector no longer
reflected the true binding state.
This update corrects the shrink logic and introduces an `assert` in the
`DXILPostOptimizationValidation` pass. The assertion will trigger if
`HasOverlappingBinding` is set but no corresponding error is detected,
helping catch future inconsistencies.
The bug surfaced when the `srv_metadata.hlsl` and `uav_metadata.hlsl`
tests were updated to include unbounded resource arrays as part of
https://github.com/llvm/llvm-project/issues/145422. These updated test
files are included in this PR, as they would cause the new assertion to
fire if the original issue remained unresolved.
Depends on #152250
llvm-project
fb1035cf - [DirectX] Fix resource binding analysis incorrectly removing duplicates (#152253)
