[llvm] [AArch64] Use a frame record for non-leaf outlined functions on MachO (PR #213711)

[Zhaoxuan Jiang via llvm-commits]

nocchijiang wrote:

@ellishg You're right, and I apologize for the noise - my "verification" was faulty. I had tested with two synthetic objects assembled from ThinLTO temporaries made by a code agent, and it copied the FDE bytes directly, which let them slip past ICF's comparison and fold. I redid the test with the real objects (plus minimal mock data to complete the link) and confirmed: LLD cannot fold FDE-bearing functions today, and ld-prime can. This also answers my question about the description: the `__text` win from ICF is real for LLD.

https://github.com/llvm/llvm-project/pull/213711