[libc-commits] [libc] [libc][math] Add missing functions from issignaling family to math.yaml (PR #199357)

[Skandan C Y via libc-commits]

skandanyal wrote:

I have read the LLVM AI Tool Use Policy, LLVM Code-Review Policy and Practices, LLVM Developer Policy. 

No AI generated code has been used in this PR. 

https://github.com/llvm/llvm-project/pull/199357