fix groovy7797 - assign correct receiver in closure
fix groovy7797 - assign correct receiver in closure

shils/incubator-groovy,paulk-asert/groovy,bsideup/incubator-groovy,apache/incubator-groovy,shils/groovy,shils/incubator-groovy,armsargis/groovy,bsideup/incubator-groovy,russel/incubator-groovy,russel/groovy,jwagenleitner/groovy,russel/groovy,russel/incubator-groovy,jwagenleitner/groovy,russel/groovy,paulk-asert/incubator-groovy,apache/incubator-groovy,apache/incubator-groovy,jwagenleitner/groovy,jwagenleitner/incubator-groovy,apache/groovy,jwagenleitner/incubator-groovy,apache/incubator-groovy,russel/incubator-groovy,paulk-asert/groovy,shils/groovy,avafanasiev/groovy,apache/groovy,russel/incubator-groovy,apache/groovy,avafanasiev/groovy,traneHead/groovy-core,shils/groovy,shils/incubator-groovy,paulk-asert/groovy,paulk-asert/groovy,paulk-asert/incubator-groovy,shils/groovy,russel/groovy,traneHead/groovy-core,paulk-asert/incubator-groovy,bsideup/incubator-groovy,avafanasiev/groovy,jwagenleitner/incubator-groovy,dpolivaev/groovy,dpolivaev/groovy,dpolivaev/groovy,jwagenleitner/incubator-groovy,paulk-asert/incubator-groovy,apache/groovy,paulk-asert/incubator-groovy,traneHead/groovy-core,bsideup/incubator-groovy,armsargis/groovy,shils/incubator-groovy,avafanasiev/groovy,dpolivaev/groovy,armsargis/groovy,traneHead/groovy-core,armsargis/groovy,jwagenleitner/groovy