[clang-tools-extra] [clang-tidy] Add bugprone-move-shared-pointer-contents check. (PR #67467)

[via cfe-commits]

================
@@ -383,7 +388,7 @@ Changes in existing checks
 
 - Improved :doc:`misc-unused-using-decls
   <clang-tidy/checks/misc/unused-using-decls>` check to avoid false positive when
-  using in elaborated type and only check cpp files.
----------------
pizzud wrote:

Done.

https://github.com/llvm/llvm-project/pull/67467