[clang] Thread Safety Analysis: Basic capability alias-analysis (PR #142955)

[Marco Elver via cfe-commits]

melver wrote:

Dropped the translateCXXNewExpr() patch for now.

> This looks good to me now, but you'll need the current maintainers to sign off on it. :-)

Thank you for the review!

https://github.com/llvm/llvm-project/pull/142955