[clang-tools-extra] [clang-tidy] fix bugprone-sizeof-expression when sizeof expression with template types (PR #115275)

[Julian Schmidt via cfe-commits]

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@@ -175,7 +175,8 @@ Changes in existing checks
 - Improved :doc:`bugprone-sizeof-expression
   <clang-tidy/checks/bugprone/sizeof-expression>` check to find suspicious
   usages of ``sizeof()``, ``alignof()``, and ``offsetof()`` when adding or
-  subtracting from a pointer directly or when used to scale a numeric value.
+  subtracting from a pointer directly or when used to scale a numeric value and
+  fix false positive when sizeof expression with template types.
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5chmidti wrote:

> If there were no releases since this change, then there is no need for the release note entry. Basically you're hotfixing a change that is coming out in the same hypothetical next release.

I'm not sure what you meant here. There should be a release note, unless the issue was introduced in the current, release cycle. The diagnostic reproduces in clang-tidy 18 for me, or did you mean something different (e.g., general *in-case-of* comment)?

> clang-tidy release-note always combines the all changes of rule in one item instead of spilt them.

+1, that's the current approach

https://github.com/llvm/llvm-project/pull/115275