legion: provide support for when users want to use different coordinate types than the underlying index space
legion: provide support for when users want to use different coordinate types than the underlying index space

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