[PATCH] D146017: [clangd][wip] Get rid of the include-cleaner hacky macro-reference implementation

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
Herald added subscribers: kadircet, arphaman.
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hokein requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay, ilya-biryukov.
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By extending and using the existing MainFileMacros structure.

- record more information (InConditionalDirective) in MacroOccurrence
- collect macro references inside macro body

When emiting include-cleaner diagnostics, we convert the result to the
RecordedPP structure just-in-time to interop with include-cleaner

Put all together into a patch (might need to split)
TODO: the newly-added test doesn't pass, because there are some other
issues in missing-include diagnostics.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146017

Files:
  clang-tools-extra/clangd/CollectMacros.cpp
  clang-tools-extra/clangd/CollectMacros.h
  clang-tools-extra/clangd/IncludeCleaner.cpp
  clang-tools-extra/clangd/ParsedAST.cpp
  clang-tools-extra/clangd/Preamble.cpp
  clang-tools-extra/clangd/unittests/IncludeCleanerTests.cpp
  clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp

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