[PATCH] D139277: [clangd] Use all query-driver arguments in cache key

[Mitch Johnson via Phabricator via cfe-commits]

ehntoo created this revision.
ehntoo added reviewers: kadircet, nridge.
ehntoo added a project: clang-tools-extra.
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Herald added subscribers: MaskRay, ilya-biryukov.

Rework the cache key construction to consider all the arguments used when invoking the query driver.
https://github.com/clangd/clangd/issues/1403

This also reworks handling for -isysroot
https://github.com/clangd/clangd/issues/1404

And adds support for passing through -specs flags to the query driver
https://github.com/clangd/clangd/issues/1410


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139277

Files:
  clang-tools-extra/clangd/SystemIncludeExtractor.cpp
  clang-tools-extra/clangd/test/system-include-extractor.test

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