test: Match gccgo error messages.
test: Match gccgo error messages.

bug298.go:10:2: error: expected declaration
bug298.go:10:25: error: expected ‘;’ or newline after top level declaration
bug298.go:10:25: error: expected declaration

R=rsc
CC=golang-dev
http://codereview.appspot.com/2156046
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go