8g compiler missing call to splitclean(). fixes issue 887.
8g compiler missing call to splitclean().
fixes issue 887.

R=rsc
CC=golang-dev
http://codereview.appspot.com/1675050
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go