[llvm] [SPIR-V] Implementation of DebugLine for DI (PR #113541)

[via llvm-commits]

bwlodarcz wrote:

TODO: 
- [ ]  Rename functions
- [ ]  Provide comments with descriptions why such design choices was made
- [ ]  Remove static from Back and Value in DebugTypeContainer to attach resources lifetime to the Pass lifetime but in the same time be able to maintain state through multiple runMachineFunctions 
- [ ]  Restrict access to the state abstraction internals
- [ ]  Implement emitDebugLine method

https://github.com/llvm/llvm-project/pull/113541