[clang] [clang] teach OpenCL to set the param addrspace before calling CG EmitParmDecl (PR #184264)

[Jameson Nash via cfe-commits]

vtjnash wrote:

As you say, those will be fixed entirely by the fix in https://github.com/llvm/llvm-project/pull/181390 to also respect Sema here, so I think that should be okay. In the meantime, I would guess that any pass that could look through one addrspacecast could look through two, and if it couldn't look through one, two will be the same.

https://github.com/llvm/llvm-project/pull/184264