[0/2] Tests and corrections for asm output and value labels

[David Gibson]

Another resend of patches from a while back.  This series adds a bunch
of tests for dtc's -Oasm mode, and corrects various problems found
thereby.  On top of that we add tests for proper handling of labels
within property values (which currently only have an effect on the
output in -Oasm mode).

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson