[compiler-rt] [llvm] [Coverage][Single] Round Counters to boolean after evaluation (PR #110972)

[NAKAMURA Takumi via llvm-commits]

chapuni wrote:

@ellishg Sorry for the delay. I was supposing tests easier.

The current implementation of singlebytecoverage doesn't emit any expressions, so I cannot create testcases to trigger my changes.

Even w/o any additional tests, my change doesn't break anything. So I can assume other `llvm-cov` tests may cover this.

That said, I can postpend committing this after practical changes in singlebytecoverage. They will be good testcases.

https://github.com/llvm/llvm-project/pull/110972