[llvm] [Code Coverage] Add a tool to check test coverage of a patch (PR #71841)

[Shivam Gupta via llvm-commits]

xgupta wrote:

Hi @boomanaiden154,

Can you please review it once again. I think this is working fine for most basic usages I tried. We can commit an early version and try to improve it incrementally.



https://github.com/llvm/llvm-project/pull/71841