prevent returning duplicate nodes from EnvisionToClangMap
prevent returning duplicate nodes from EnvisionToClangMap

mgalbier/Envision,mgalbier/Envision,lukedirtwalker/Envision,Vaishal-shah/Envision,lukedirtwalker/Envision,Vaishal-shah/Envision,Vaishal-shah/Envision,lukedirtwalker/Envision,mgalbier/Envision,dimitar-asenov/Envision,Vaishal-shah/Envision,Vaishal-shah/Envision,lukedirtwalker/Envision,dimitar-asenov/Envision,mgalbier/Envision,lukedirtwalker/Envision,dimitar-asenov/Envision,dimitar-asenov/Envision,Vaishal-shah/Envision,dimitar-asenov/Envision,dimitar-asenov/Envision,mgalbier/Envision,lukedirtwalker/Envision,mgalbier/Envision