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

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+.. title:: clang-tidy - bugprone-move-shared-pointer-contents
+
+bugprone-move-shared-pointer-contents
+=====================================
+
+Detects calls to move the contents out of a ``std::shared_ptr`` rather than
+moving the pointer itself. In other words, calling ``std::move(*p)``. Other
+reference holders may not be expecting the move and suddenly getting empty or
+otherwise indeterminate states can cause issues.
+
+Options
+-------
+
+.. option :: SharedPointerClasses
+
+   A semicolon-separated list of class names that should be treated as shared
+   pointers. By default only `std::shared_ptr` is included.
----------------
EugeneZelenko wrote:

I think , `Default is `std::shared_ptr`.` would be better.

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