[clang] [Clang] Separate implicit int conversion on negation sign to new diagnostic group (PR #139429)

[Yutong Zhu via cfe-commits]

YutongZhuu wrote:

> If that warning is disruptive, maybe we should consider making it a separate warning that people can disable independently? It is certainly a potential source of bugs, so I'm not sure removing it entirely is the right approach @AaronBallman

H

> If that warning is disruptive, maybe we should consider making it a separate warning that people can disable independently? It is certainly a potential source of bugs, so I'm not sure removing it entirely is the right approach @AaronBallman

Hi, could you check if this is what you suggested?

https://github.com/llvm/llvm-project/pull/139429