[clang] Run PreStmt/PostStmt checker for GCCAsmStmt (PR #95409)

[Balazs Benics via cfe-commits]

steakhal wrote:

> > Thanks for the ping. Looks really nice! FYI I just came across a case last week w.r.t asm gotos. You can have a read [here](https://sonarsource.atlassian.net/browse/CPP-5459) if you are interested in the subject.
> 
> Thank you! Looks interesting. Does this mean that the linked problem would also benefit from this PR?

I haven't if this PR would help or not. My guess would be that this wouldn't help. 

Please fix the formatting. After that we can merge this PR.

https://github.com/llvm/llvm-project/pull/95409