[lld] [ELF] Add internal InputFile (PR #78944)

[Fangrui Song via llvm-commits]

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@@ -473,6 +473,7 @@ struct Ctx {
                  std::pair<const InputFile *, const InputFile *>>
       backwardReferences;
   llvm::SmallSet<llvm::StringRef, 0> auxiliaryFiles;
+  InputFile *internalFile;
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MaskRay wrote:

Thanks for the suggestion!

https://github.com/llvm/llvm-project/pull/78944