[lld] [PAC][lld][AArch64][ELF] Support signed GOT (PR #113815)

[Fangrui Song via llvm-commits]

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@@ -910,14 +911,26 @@ void elf::addGotEntry(Ctx &ctx, Symbol &sym) {
 
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MaskRay wrote:

This is too much pauth specific code in the generic addGotEntry. What if we change the callers to call a separate function for pauth?

https://github.com/llvm/llvm-project/pull/113815