[clang] [KeyInstr] Inline asm atoms (PR #149076)

[Jeremy Morse via cfe-commits]

https://github.com/jmorse approved this pull request.

LGTM -- is there a possibility that there'll be multiple stores coming from (output arguments of?) inline asm blocks? One wonders what the desired stepping behaviour is then: arguably you want to step through all the side-effects, or some might want to just consider the inline-asm block as a single operation.

https://github.com/llvm/llvm-project/pull/149076