[llvm] [DirectX] Implement DXILResourceBindingAnalysis (PR #137258)

[Greg Roth via llvm-commits]

https://github.com/pow2clk commented:

I suspect I don't grasp the ultimate reason for collecting the information about overlapping bindings, so those can be considered questions.

I have some additional testing suggestions, but while I feel they are valuable, I won't insist they go in with this PR.

https://github.com/llvm/llvm-project/pull/137258