[clang] [Clang] Overflow Pattern Exclusions (PR #100272)

[Justin Stitt via cfe-commits]

JustinStitt wrote:

@bwendling I tried to address all your feedback points with 4b3efbb41ff86eeff15671b1d876e1ef6a58a536 Let me know how that looks 👍 

https://github.com/llvm/llvm-project/pull/100272