go.tools/go/gcimporter: ImportData has no need for *bufio.Reader, can get just io.Reader.
go.tools/go/gcimporter: ImportData has no need for *bufio.Reader, can get just io.Reader.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/31620043

runcom/tools,syreclabs/go-tools,springning/tools,magiccao/tools,springning/tools,golang/tools,syreclabs/go-tools,golang/tools,argandas/tools,cmars/tools,syreclabs/go-tools,syreclabs/go-tools,maddyonline/tools,golang/tools,runcom/tools,magiccao/tools,dmitris/tools,4ad/tools,matryer/tools,maddyonline/tools,argandas/tools,matryer/tools,golang/tools,glasser/golang-tools,syreclabs/go-tools,dmitris/tools,maddyonline/tools,dmitris/tools,nicot/tools,sshetty10/tools,cmars/tools,syreclabs/go-tools,josharian/tools,springning/tools,matryer/tools,4ad/tools,jdhenke/tools,cmars/tools,runcom/tools,argandas/tools,nicot/tools,golang/tools,josharian/tools,sshetty10/tools,jdhenke/tools,magiccao/tools,sshetty10/tools,cmars/tools,sshetty10/tools,cw2018/tools,maddyonline/tools,nicot/tools,matryer/tools,argandas/tools,runcom/tools,magiccao/tools,cw2018/tools,glasser/golang-tools,cw2018/tools,josharian/tools,cw2018/tools,glasser/golang-tools,nicot/tools,jdhenke/tools,glasser/golang-tools,springning/tools,4ad/tools,josharian/tools,dmitris/tools,jdhenke/tools