This fixes some issues I found while updating this code base, e.g.
this removes types a method really does not return.
Change-Id: I19457e7bf88945eec958bf53e0b76a7585715a45
There are about 200 of such generic "array" type hints in this code base,
the majority in @param tags. I started with what I found most relevant:
@var and @return tags. I might continue working on this later, but
wanted to stop for now to keep this patch moderately small.
Change-Id: Iff0d9590a794ae0f885466ef6bb336b0b42a6cd3
