[PATCH] D86718: [llvm-readobj] - Simplify the code that creates dumpers. NFCI.

[George Rimar via Phabricator via llvm-commits]

grimar created this revision.
grimar added reviewers: jhenderson, MaskRay.
Herald added subscribers: rupprecht, sbc100.
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Herald added a subscriber: aheejin.

We have a few helper functions like the following:

  std::error_code create*Dumper(...)

In fact we do not need or want to use `std::error_code` and the code
can be simpler if we just return `std::unique_ptr<ObjDumper>`.

This patch does this change and refines the signature of `createDumper`
as well.


https://reviews.llvm.org/D86718

Files:
  llvm/tools/llvm-readobj/COFFDumper.cpp
  llvm/tools/llvm-readobj/ELFDumper.cpp
  llvm/tools/llvm-readobj/MachODumper.cpp
  llvm/tools/llvm-readobj/ObjDumper.h
  llvm/tools/llvm-readobj/WasmDumper.cpp
  llvm/tools/llvm-readobj/XCOFFDumper.cpp
  llvm/tools/llvm-readobj/llvm-readobj.cpp

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