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
All files containing more than one PHP class were split into
multiple files.
extension.json was updated to match new class locations.
Bug: T177809
Change-Id: I4e7d8f02164c3048c41c4c9fbe4be18a99e7abaa
