Bug#604809: [binaries] Extend binary-from-other-architecture to include control.tar.gz

["Adam D. Barratt" <adam@adam-barratt.org.uk>]

Package: lintian
Version: 2.4.3
Severity: wishlist

Following a discussion on #debian-boot earlier today, it would be useful
if the binary-from-other-architecture test could be applied to files from
the control.tar.gz in binary packages (primarily maintainer scripts).

>From a quick look, this would most likely involve changes to
collection/{file,unpack}-info to process control-index in addition to
index, and to Lintian::Collect::Binary to expose the results.

Adam