[clang] Thread Safety Analysis: Fix implicit member access in attributes (PR #194457)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

> This fix here is quite narrow, and unless it interferes with anything else, I'd propose merging is a near-term fix so that users aren't blocked on this - this fix was in response to a report by a Linux kernel maintainer (we already expect needing to bump min. Clang version to use -Wthread-safety to 23, given the various issues that have been fixed after Clang 22's release).

I'm comfortable with that.

https://github.com/llvm/llvm-project/pull/194457