[llvm] [SPIR-V] Emit DebugTypePointer from NonSemantic DI (PR #109287)

[via llvm-commits]

bwlodarcz wrote:

@VyacheslavLevytskyy @michalpaszkowski It isn't an accident that the next instruction which I'm implementing is DebugLine. This is an equivalent of .debug_line from DWARF and require architectural changes which will trigger necessary refactoring as well.
The abstraction level will raise matching the increasing complexity of the problem. 

https://github.com/llvm/llvm-project/pull/109287