[llvm] [AMDGPU] MCExpr-ify MC layer kernel descriptor (PR #80855)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> As in, amdgpu directives instead of .set? e.g.,

I mean what precisely does .set do? Is it defining a new external symbol for each field? I'm worried about blowing up the size of the symbol table by N entries for every function, and how you map from one function to the fields of another function

https://github.com/llvm/llvm-project/pull/80855