go spec clarification: arrays must be addressable to be sliceable
go spec clarification: arrays must be addressable to be sliceable

R=rsc
CC=golang-dev, r
http://codereview.appspot.com/2141041
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go