go.tools/go/types: exclude newly added std test (fix build)
go.tools/go/types: exclude newly added std test (fix build)

TBR=adonovan

TBR=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/99410045

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