change smoketest from parser.go to astprinter.go, the largest remaining source file in this directory.
change smoketest from parser.go to astprinter.go,
the largest remaining source file in this directory.

TBR=gri
OCL=26984
CL=26984
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go