Make the scalac Ant task recognise -Yrangepos
Make the scalac Ant task recognise -Yrangepos

The scalac Ant task was not setting up the Scala compiler to produce
range positions when specifying the -Yrangepos flag in its addparams
property.

felixmulder/scala,martijnhoekstra/scala,slothspot/scala,felixmulder/scala,martijnhoekstra/scala,felixmulder/scala,lrytz/scala,scala/scala,jvican/scala,scala/scala,shimib/scala,slothspot/scala,slothspot/scala,felixmulder/scala,jvican/scala,martijnhoekstra/scala,lrytz/scala,jvican/scala,scala/scala,felixmulder/scala,scala/scala,lrytz/scala,lrytz/scala,martijnhoekstra/scala,jvican/scala,jvican/scala,shimib/scala,felixmulder/scala,felixmulder/scala,scala/scala,slothspot/scala,slothspot/scala,shimib/scala,shimib/scala,slothspot/scala,martijnhoekstra/scala,slothspot/scala,lrytz/scala,shimib/scala,martijnhoekstra/scala,jvican/scala,jvican/scala,shimib/scala,scala/scala,lrytz/scala