[llvm] [SPIRV] convergence anchor intrinsic does not have a parent token (PR #122230)

[Nathan Gauër via llvm-commits]

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

Thanks! So far none of the tests/code we have use an anchor, and not sure what's a valid use case for those yet. But this patch looks good, thanks for fixing!

https://github.com/llvm/llvm-project/pull/122230