[clang] [analyzer] MallocChecker – Fix false positive leak for smart pointers in temporary objects (PR #152751)

[Balazs Benics via cfe-commits]

steakhal wrote:

> > I don't think I have the time to do a proper focused review, so I'd at this point forward you to @NagyDonat to finish the reviews.
> 
> @steakhal The "Requested change" review status is still active from your old review. Is it just a github glitch? 

Im on vacation. I do not track this PR. Merge it if you want.

https://github.com/llvm/llvm-project/pull/152751