legion: record instance footprint sizes when we find instances instead of creating them for #905
legion: record instance footprint sizes when we find instances instead of creating them for #905

StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion