regent: Expose __int2d and __int3d so they can be constructed from Terra.
regent: Expose __int2d and __int3d so they can be constructed from Terra.

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