[clang] [LifetimeSafety] Allow configuring lifetimebound fix-it spelling (PR #204045)

[via cfe-commits]

NeKon69 wrote:

> My current thinking is that this probably should not be a clang-tidy option (since the warning comes from Sema, not from a Clang-tidy check), if a clang-tidy user wants these fix-its, they can pass it via extra-arg (though I'm not sure whether it is possible to use LifetimeSafety with clang-tidy) :)

You have much more experience with clang-tidy than me, so I trust your judgement :)

https://github.com/llvm/llvm-project/pull/204045