[PATCH] D64566: [YAMLIO] Remove trailing spaces when outputting maps

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: grimar, jhenderson, pcc.
Herald added subscribers: llvm-commits, kristina.
Herald added a project: LLVM.

llvm::yaml::Output::paddedKey unconditionally outputs spaces, which
are superfluous if the value to be dumped is a sequence or map.
Change `bool NeedsNewLine` to `StringRef Padding` so that it can be
overridden to `\n` if the value is a sequence or map.


Repository:
  rL LLVM

https://reviews.llvm.org/D64566

Files:
  include/llvm/Support/YAMLTraits.h
  lib/Support/YAMLTraits.cpp
  unittests/Support/YAMLIOTest.cpp

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