[clang-tools-extra] [clang-tidy] Fix crash in readability-identifier-naming with forward-… (PR #219769)

[Zeyi Xu via cfe-commits]

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@@ -0,0 +1,16 @@
+// RUN: %check_clang_tidy %s readability-identifier-naming %t
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zeyi2 wrote:

Please move the test into the existing test file and remove the overly verbose comments.

https://github.com/llvm/llvm-project/pull/219769