[llvm] [SPIRV] Do not use OpTypeRuntimeArray in Kernel env. (PR #149522)

[Steven Perron via llvm-commits]

https://github.com/s-perron approved this pull request.

LGTM, I will be off for a while, so don't wait for me to merge. My only issue are the mixing of Vulkan and other addressing models. In general, we should not be using `Addresses` when targeting Vulkan. Don't add tests that expect that to work. Note that is different than creating a general shader, which can use Addresses.

https://github.com/llvm/llvm-project/pull/149522