[llvm] [SYCL] Add property set types and JSON representation (PR #147321)

[Arvind Sudarsanam via llvm-commits]

asudarsa wrote:

@jhuber6 and @bader 

I am trying to merge this change. But it seems stuck. "Checking for the ability to merge automatically..." seems to be running forever.
Is there something else I can try?

Thanks

https://github.com/llvm/llvm-project/pull/147321