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

[Eli Friedman via cfe-commits]

https://github.com/efriedma-quic commented:

I think serialization is missing for the new bit on BinaryOperator.  I'm not sure why we're storing it in the first place, though; it's queried in exactly one place, so there isn't really any benefit to precomputing it.

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