[clang] [clang]bytecode] Add degenerate pointers (PR #160086)

[Erich Keane via cfe-commits]

https://github.com/erichkeane commented:

I have no idea what is going on here... can we have an improved/descriptive commit message to help us out here?  I'm really confused as to what is going on.

https://github.com/llvm/llvm-project/pull/160086