[clang] Thread Safety Analysis: Improved pointer handling (PR #127396)

[Aaron Puchert via cfe-commits]

https://github.com/aaronpuchert commented:

I think this looks very good! I just have some minor remarks.

Thanks to @aoates for trying this out, this is always appreciated!

And sorry for the delay. 

https://github.com/llvm/llvm-project/pull/127396