[lld] [ELF] Add context-aware diagnostic functions (PR #112319)

[Peter Smith via llvm-commits]

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@@ -547,6 +547,8 @@ struct Ctx {
   LinkerScript *script;
   std::unique_ptr<TargetInfo> target;
 
+  ErrorHandler *e;
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smithp35 wrote:

I think it would be worth using a full name as it isn't used frequently enough to benefit from a short abbreviation.

`ctx.e` could be almost anything. Perhaps ctx.errHandler. 

https://github.com/llvm/llvm-project/pull/112319