[PATCH] D60937: [clangd] Fix code completion of macros defined in the preamble region of the main file.

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added a reviewer: ilya-biryukov.
Herald added subscribers: cfe-commits, kadircet, arphaman, jkorous, MaskRay, ioeric.
Herald added a project: clang.

This is a tricky case (we baked the assumption that symbols come from
the preamble xor mainfile pretty deeply) and the fix is a bit of a hack:
We look at the code to guess the macro names, and deserialize them from
the preamble "by hand".


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D60937

Files:
  clangd/CodeComplete.cpp
  clangd/index/SymbolCollector.cpp
  unittests/clangd/CodeCompleteTests.cpp

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