[clang] [analyzer] Modernize FuchsiaHandleChecker (PR #111588)

[Pavel Skripkin via cfe-commits]

pskrgag wrote:

> In general, bug reporter visitors are complex tools that are good for complex situations where you want to find arbitrary complicated patterns in the bug report path, but should be avoided in simpler cases.

Aha, Ok. I just saw it in various easy checkers like `ValistChecker`, so I thought it's "standard" way of reporting. Ok, I will rollback notes changes. Thanks!

https://github.com/llvm/llvm-project/pull/111588