[clang-tools-extra] [clang-tidy] Fix for cppcoreguidelines-pro-type-union-access if memLoc is invalid (PR #104540)

[Nicolas van Kempen via cfe-commits]

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@@ -141,6 +141,10 @@ New check aliases
 Changes in existing checks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+- Fixed :doc:`cppcoreguidelines-pro-type-union-access
+  <clang-tidy/checks/cppcoreguidelines/pro-type-union-access>` check to
+  report a location even when the member location is not valid.
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nicovank wrote:

Order alphabetically by check name.

https://github.com/llvm/llvm-project/pull/104540