[llvm] [AArch64][GlobalISel] Don't let debug instructions change register classes (PR #228078)

[Aochang Liu via llvm-commits]

HelloWorldU wrote:

Related to #57010: a vreg whose last non-debug use is folded away after its `DBG_VALUE` is selected ends up with only a bank, since a target selector can't see the end of selection. I'll draft a PR for the generic handling in the next few days.

https://github.com/llvm/llvm-project/pull/228078