[PM/AA] Actually wire the AAManager I built for the new pass manager

into the new pass manager and fix the latent bugs there.

This lets everything live together nicely, but it isn't really useful
yet. I never finished wiring the AA layer up for the new pass manager,
and so subsequent patches will change this to do that wiring and get AA
stuff more fully integrated into the new pass manager. Turns out this is
necessary even to get functionattrs ported over. =]

llvm-svn: 260836