made prettyPrint generic in tf
made prettyPrint generic in tf

ihc/futhark,diku-dk/futhark,mrakgr/futhark,diku-dk/futhark,diku-dk/futhark,mrakgr/futhark,ihc/futhark,HIPERFIT/futhark,HIPERFIT/futhark,diku-dk/futhark,mrakgr/futhark,diku-dk/futhark,ihc/futhark,CulpaBS/wbBach,HIPERFIT/futhark