[llvm] [clang] [Sema] Implement support for -Wformat-signedness (PR #74440)

[Karl-Johan Karlsson via llvm-commits]

karka228 wrote:

Ping. Lets pickup the discussion from before Christmas. Is the solution with the dummy warning (that @hazohelet wrote about in a previous comment) an acceptable solution?


https://github.com/llvm/llvm-project/pull/74440