[llvm] [llvm-cov] add ability to show non executed test vectors for mc/dc coverage (PR #187517)

[via llvm-commits]

kuzmich321 wrote:

@evodius96 Yes, I believe so. Not sure if I have enough permissions to do that.

Also, do you want me to update the documentation after we merge it?

https://github.com/llvm/llvm-project/pull/187517