[llvm] [MemProf] Add ambigous memprof attribute (PR #157204)

[Teresa Johnson via llvm-commits]

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teresajohnson wrote:

I don't think so - we are only adding these new attributes to the same calls where we currently add memprof attributes. This unittest in particular doesn't have any non-alloc calls in any case - it's only checking what we add to the allocations.

https://github.com/llvm/llvm-project/pull/157204