Pull Request Test Coverage Report for Build 2175710934

• 94 of 94 (100.0%) changed or added relevant lines in 7 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.003%) to 99.696%

Totals
Change from base Build 2175418394:	-0.003%
Covered Lines:	15244
Relevant Lines:	15273

💛 - Coveralls

I modified x.reposition to return an expression. I think this is better, because it lets us use the same patterns as elsewhere and efficiently applies masks, accumulators, etc.

In general, I think custom recipes that we add should return expressions and not objects if there's a reasonable way to do so. Recipes that rely heavily on Numba such as M.ss.compactify_rowwise don't need to return expressions.

Hmm, I think I might be able to use the conventions added in this PR to make broadcasting vectors across matrices even better for ewise_add and ewise_union when there are masks. Also, better reprs.