[PATCH] D124065: [ELF] Drop unused original symbol after wrapping if not defined

[Shoaib Meenai via Phabricator via llvm-commits]

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We were previously only omitting the original of a wrapped symbol if it
was not used by an object file and undefined. We can tighten the second
condition to drop any symbol that isn't defined instead, which lets us
drop a previous check that was only covering some such symbols.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124065

Files:
  lld/ELF/Driver.cpp
  lld/ELF/SymbolTable.cpp
  lld/test/ELF/lto/wrap-unreferenced-before-codegen.test
  lld/test/ELF/wrap-drop-shared-original.s
  lld/test/ELF/wrap-lazy.test

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