[PATCH] D71762: [DebugInfo][NFC] Use function_ref consistently in debug line parsing

[Fangrui Song via Phabricator via llvm-commits]

MaskRay accepted this revision.
MaskRay added a comment.
This revision is now accepted and ready to land.

`llvm::function_ref` is more common and more efficient (`std::function` has a heap allocation). These callbacks are not supposed to be stored. LG


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  rG LLVM Github Monorepo

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https://reviews.llvm.org/D71762