[llvm] [CodeGen] Renumber slot indexes before register allocation (PR #66334)

[Jay Foad via llvm-commits]

jayfoad wrote:

Rebased on #66627 which allowed me to update `test/CodeGen/X86/AMX/amx-greedy-ra-spill-shape.ll` automatically with no need for manual tweaks to the checks.

https://github.com/llvm/llvm-project/pull/66334