Let muladd accept arrays

[mcabbott]

This adds JuliaLang/julia#37065 ... and JuliaLang/julia#38250 now.

[simeonschaub]

Don't we have a 5-arg mul! in Compat now? Couldn't we just use that for compatibility with all older versions?

[mcabbott]

Yes we do, and I guess this uses it on early enough versions. But test failures earlier were from recursive dot issues.

[simeonschaub]

Ah, I see!

[mcabbott]

Test failure on MacOS nightly looks to be that it has a too-old nightly, it passes locally.

It might be possible to make the definitions here work on nightly versions between the two PRs above, but won't be easy to avoid ambiguities, and that doesn't seem like a great use of time.

[mcabbott]

(Sorry about the noise! Was trying to re-trigger travis. But it seems to be out of credit, in fact.)

[mcabbott]

Bump? CI looks happy, tests pass locally on 1.3, 1.4, 1.5.

[oxinabox]

Bump

[simeonschaub]

LGTM

[codecov-commenter]

Codecov Report

Merging #729 (46515c0) into master (61726a3) will increase coverage by 0.70%.
The diff coverage is 89.74%.

@@            Coverage Diff             @@
##           master     #729      +/-   ##
==========================================
+ Coverage   80.64%   81.34%   +0.70%     
==========================================
  Files           4        4              
  Lines         465      504      +39     
==========================================
+ Hits          375      410      +35     
- Misses         90       94       +4     

Impacted Files	Coverage Δ
src/Compat.jl	81.44% <89.74%> (+0.80%)	⬆️

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[omus]

Will merge after CI passes