[lld] [lld] Refactor storage of PAuth ABI core info (PR #141920)

[Peter Smith via llvm-commits]

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@@ -139,6 +139,19 @@ enum class GcsPolicy { Implicit, Never, Always };
 // For some options that resemble -z bti-report={none,warning,error}
 enum class ReportPolicy { None, Warning, Error };
 
+struct AArch64PauthAbiCoreInfo {
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smithp35 wrote:

I'm thinking it will be worth a quick summary of PauthAbi in a comment. For example:
```
Represents a signing schema for a file that uses the PAuthABI extension. Files are compatible when
platform and version match. The value (0, 0) is reserved for a value incompatible with the PAuthABI.
```

https://github.com/llvm/llvm-project/pull/141920