[PATCH] D130863: [clangd] Make git ignore index directories

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Comment at: clang-tools-extra/clangd/test/background-index.test:23
+# RUN: ls %/t/.cache/clangd/index/.gitignore
+# RUN: ls %/t/sub_dir/.cache/clangd/index/.gitignore
+
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sammccall wrote:
> Bleh, ideally this would go in clangd/.gitignore but we'd have to break a bunch of abstractions to do that. I think this is fine.
Doing it this way also ignores the `.gitignore` file itself :)


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D130863/new/

https://reviews.llvm.org/D130863