[llvm] [AArch64] Transition from MCSymbolRefExpr::VariantKind constants (PR #133214)

[Peter Smith via llvm-commits]

https://github.com/smithp35 commented:

One question about an assert that was removed that I couldn't easily see why.

When that's resolved I can approve on the ELF side. It seems to affect Darwin more than it does ELF, so we should give Apple folks time to object.

https://github.com/llvm/llvm-project/pull/133214