[WIP] Turn Name Resolution 2.0 on by default

[powerboat9]

I've managed to get all of the tests passing, although I had to modify a few tests. I should be able to pull out some of the more minor changes into separate pull requests

[P-E-P]

Is this a follow up to #2796 ?

[powerboat9]

Not necessarily, this is just enough to get tests passing for name resolution 2.0 (although GCC 4.8 is still having problems)

[powerboat9]

Note that this only touches early resolution

[CohenArthur]

@powerboat9 should this be a draft or is it ready for reviews?

[powerboat9]

draft, sorry

[CohenArthur]

@powerboat9 now that @P-E-P merged his work on glob imports I think this would be a nice thing to focus on - let me know how I can help and if you'd like me to review parts of the PR or work on some stuff

[powerboat9]

A lot of this would now be duplicated work, but I've rebased and will start breaking this down into smaller PRs

[philberty]

Forgive me but whats the purpose of this PR at the moment?

[powerboat9]

This was an old branch I was using to work on nr2.0 -- I'll close it once I separate out the useful changes into new PRs