[PATCH] D92551: [llvm-readelf] - Report unique warnings when dumping hash symbols/histogram.

[George Rimar via Phabricator via llvm-commits]

grimar created this revision.
grimar added reviewers: jhenderson, MaskRay.
Herald added subscribers: rupprecht, emaste.
Herald added a reviewer: espindola.
Herald added a project: LLVM.
grimar requested review of this revision.

This converts 2 more places to use `reportUniqueWarning` and adds tests.


https://reviews.llvm.org/D92551

Files:
  llvm/test/tools/llvm-readobj/ELF/hash-histogram.test
  llvm/test/tools/llvm-readobj/ELF/hash-symbols.test
  llvm/tools/llvm-readobj/ELFDumper.cpp

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