[PATCH] D23868: [ELF] - Introduce DiscardPolicy instead of 3 relative bool fields.

[George Rimar via llvm-commits]

grimar created this revision.
grimar added reviewers: ruiu, rafael.
grimar added subscribers: llvm-commits, grimar.

DiscardPolicy is enum replacing several boolean options. 
This approach is not only consistent with what we use for 
unresolveds (UnresolvedPolicy), but also should help to solve a problem 
of options with opposing meanings, mentioned in PR28843

https://reviews.llvm.org/D23868

Files:
  ELF/Config.h
  ELF/Driver.cpp
  ELF/OutputSections.cpp
  ELF/Writer.cpp

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