[llvm] [llvm] Add NodeMetadata::optUnsafeEdges (NFC) (PR #137539)

[Nikita Popov via llvm-commits]

nikic wrote:

> > Can we replace the member with OwningArrayRef instead?
> 
> I don't think so. The array could be reallocated in the middle of lifetime:

OwningArrayRef has operator= so I think that should be ok?


https://github.com/llvm/llvm-project/pull/137539