Config resolvers should mirror other node functions

[skrawcz]

This is an issue to recount some thoughts:

1. config resolvers return a function, instead they should return a node. This is inconsistent and we lose metadata from config resolvers.
2. using fn.name directly in various decorators is likely a leaky abstraction. We either need to use Node here for this metadata, or we should standardize attaching things to the function itself...