numpy: Provide concrete size aliases, test equivalence for `dtype(...).num#1

Merged

codymgriffin merged 2 commits intobraincorp:masterfrom EricCousineau-TRI:issue/1328

Nov 30, 2018

+128-3

Commits on May 11, 2018

numpy: Add test for explicit dtype checks. At present, int64 + uint64 do not exactly match dtype(...).num
EricCousineau-TRI
committed
numpy: Provide concrete size aliases. Test for dtype checks now match (no warnings)
EricCousineau-TRI
committed