[PATCH] Simplify communication between Resolver and Input Graph.

[Shankar Kalpathi Easwaran]

  Ah, the only problem that I see with this patch is how to add flavor specific looping inside a group.

  For example:

  With ELF, we want to search the group even if weak symbols were added. weak symbols are Defined Atoms.

  When weak symbols are added, the group needs to be iterated as well.

  A single boolean would not be enough.

http://llvm-reviews.chandlerc.com/D3267

BRANCH
  cleanup

ARCANIST PROJECT
  lld