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[ProfileData] Migrate SampleProf{Reader,Writer} functions from error_code/ErrorOr to Error/Expected
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Authored by MaskRay on Apr 5 2019, 1:15 AM.



This fixes one FIXME (moving away from std::error_code) left by D20592
and fixes some inadvertently discarded return values. They were caught
because Error is marked as LLVM_NODISCARD.

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MaskRay created this revision.Apr 5 2019, 1:15 AM
Herald added a project: Restricted Project. · View Herald TranscriptApr 5 2019, 1:15 AM