[PATCH] D58239: [clangd] Cache include fixes for diagnostics caused by the same unresolved name or incomplete type.

[Eric Liu via Phabricator via cfe-commits]

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

Multiple diagnostics can be caused by the same unresolved name or incomplete type,
especially if the code is copy-pasted without #includes. The cache can avoid making
repetitive index requests, and thus reduce latency and allow more diagnostics to be
fixed (we limit the number of index requests for each parse).


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D58239

Files:
  clangd/IncludeFixer.cpp
  clangd/IncludeFixer.h
  unittests/clangd/DiagnosticsTests.cpp

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