[llvm-branch-commits] [libcxx] [libc++] Use clang-tidy version that matches the compiler we use in the CI (PR #85305)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: Louis Dionne (ldionne)

<details>
<summary>Changes</summary>

This works around ODR violations in the clang-tidy plugin we use to perform the modules tests.

Fixes #<!-- -->85242

---
Full diff: https://github.com/llvm/llvm-project/pull/85305.diff


1 Files Affected:

- (modified) libcxx/test/tools/clang_tidy_checks/CMakeLists.txt (+1-1) 


``````````diff
diff --git a/libcxx/test/tools/clang_tidy_checks/CMakeLists.txt b/libcxx/test/tools/clang_tidy_checks/CMakeLists.txt
index 978e7095216522..a52140e2b9938a 100644
--- a/libcxx/test/tools/clang_tidy_checks/CMakeLists.txt
+++ b/libcxx/test/tools/clang_tidy_checks/CMakeLists.txt
@@ -5,7 +5,7 @@
 set(LLVM_DIR_SAVE ${LLVM_DIR})
 set(Clang_DIR_SAVE ${Clang_DIR})
 
-find_package(Clang 18)
+find_package(Clang 18.1)
 if (NOT Clang_FOUND)
   find_package(Clang 17)
 endif()

``````````

</details>


https://github.com/llvm/llvm-project/pull/85305