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

[Piotr Zegar via cfe-commits]

PiotrZSL wrote:

@pizzud don't worry much about this one, this can be easily solved by using hasType instead of ofClass.
Next branch out is in ~5 months, so there is some time.

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