[clang] [clang] fix P3310 overload resolution flag propagation (PR #125372)

[David Spickett via cfe-commits]

DavidSpickett wrote:

Might be as simple as a constant true or false, but I'm nearing the end of my work day so I've reverted it for now.

In the meantime, @Michael137 might know if this is something LLDB should actually be tracking. Or in other words, is https://github.com/llvm/llvm-project/issues/125290 something that can happen via LLDB too?

https://github.com/llvm/llvm-project/pull/125372