[clang] [clang][analyzer] Support `ownership_{returns,takes}` attributes (PR #98941)

[Pavel Skripkin via cfe-commits]

pskrgag wrote:

> and you can read the docs for the checker, and the attribute at the links.

I can't find any docs for this attribute. As I mentioned, I will fill new issues to fix couple of frontend issues and after that we can write down correct semantics of these attrs.

Do you mean that link https://clang.llvm.org/docs/AttributeReference.html#ownership-holds-ownership-returns-ownership-takes?

https://github.com/llvm/llvm-project/pull/98941