Ensure that the transformers are properly declaring all consumed
outputs. In particular, when a transformer overwrites an output, make
sure the transformer calls `consumePrimary` followed by `addOutput` for
that file.
Prevent `DirectiveLinker` from consuming `.ng_deps.json` files. When we
do this, barback incorrectly calculates the available assets for that
phase, resulting in broken builds.
Tim Blasi
1f2302e39e