[llvm] [clang-repl] Support XDG state directory for history (PR #223037)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/LineEditor/LineEditor.cpp llvm/unittests/LineEditor/LineEditor.cpp --diff_from_common_commit
``````````

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The reproduction instructions above might return results for more than one PR
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changing `origin/main` to the base branch/commit you want to compare against.
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<details>
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/unittests/LineEditor/LineEditor.cpp b/llvm/unittests/LineEditor/LineEditor.cpp
index ea024d787..4ac9d4779 100644
--- a/llvm/unittests/LineEditor/LineEditor.cpp
+++ b/llvm/unittests/LineEditor/LineEditor.cpp
@@ -81,7 +81,6 @@ TEST_F(LineEditorTest, ListCompleters) {
   EXPECT_EQ("f", CA.Text);
 }
 
-
 #ifdef __linux__
 
 #include <cstdlib>

``````````

</details>


https://github.com/llvm/llvm-project/pull/223037