[llvm] [CodeGen] Make the parameter TRI required in some functions. (PR #85968)

[Matt Arsenault via llvm-commits]

arsenm wrote:

Can you refine the description to say it's the various register liveness queries on MachineInstr? I think the default parameter should stay as-is. We should assert Reg is not a physical register if TRI is null 

https://github.com/llvm/llvm-project/pull/85968