feat: early late classification of lifetimes

[dfireBird]

Some things to note:

1. We still don't handle the HRTB Lifetimes (in both where and fn ptr) and will be done in a future PR and that PR should also remove the in_binders and fully replace it with bound_vars stack.
2. I haven't added a new tests, not sure how to test this particularly, so any approach to test them are helpful (this should be done before merging)
3. There are some IDE features which lose information that I consider to be essential, need to find a way to not have that loss of information (see FIXME in ide tests)
4. I have implemented this to best of my understanding of both r-a and rustc, so if there are panics or data mismatch, I'm really sorry that happened, I'll try to fix it as soon as I get to know about it.