[clang] [analyzer] Adding taint analysis capability to unix.Malloc checker (PR #92420)

[Balazs Benics via cfe-commits]

https://github.com/steakhal commented:

The patch makes sense to me.
I'll not repeat the existing comments, they raise relevant concerns.

It would be nice to extend some test case with a tainted malloc to see how those note tags play out from the generic taint checker in this context. For this, I'd suggest you to have a look at some taint tests where we enable the `text` diagnostic output.

https://github.com/llvm/llvm-project/pull/92420