[PATCH] D78048: [clangd] Add tests that no-op changes are cheap

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added a reviewer: kadircet.
Herald added subscribers: cfe-commits, usaxena95, jfb, arphaman, jkorous, MaskRay, javed.absar, ilya-biryukov.
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sammccall updated this revision to Diff 257083.
sammccall added a comment.

format


We want to be sure they don't cause AST rebuilds or evict items from the cache.
D77847 <https://reviews.llvm.org/D77847> is going to start sending spurious no-op changes (in case the preamble
was invalidated), this is cheap enough but we shouldn't regress that in future.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78048

Files:
  clang-tools-extra/clangd/ClangdServer.cpp
  clang-tools-extra/clangd/ClangdServer.h
  clang-tools-extra/clangd/TUScheduler.cpp
  clang-tools-extra/clangd/TUScheduler.h
  clang-tools-extra/clangd/unittests/ClangdTests.cpp
  clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp

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