[clang] [clang] Force AttributedStmtClass to not be scope parents (PR #125370)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

Thank you for the fix!

> Could you add a test case - check in clang/test to see if other tests for the diagnostic text in the original bug, and add a test case for that nearby (maybe the same file the diagnostic is already tested in)?

Also, please add a more descriptive summary of what's changing and why (it makes it easier on us when we have to dig through a blame a few years down the line) and a release note in `clang/docs/ReleaseNotes.rst` so users know about the fix.

https://github.com/llvm/llvm-project/pull/125370