Check sizes of arguments in `dot`

[antoine-levitt]

JuliaLang/julia#28666 feels still relevant to me. It was not merged because it broke a few packages, but maybe if we allow dot(matrix, vector) but disallow dot(matrix, matrix) with different shapes (eg dot(randn(4,2), randn(8,1)) it's already a good step forward?

[DilumAluthge]

Duplicate of #549?

(We were able to transfer the issues from JuliaLang/julia to this repo. We just couldn't automatically transfer the PRs, which is why I closed the PRs.)

[antoine-levitt]

Sorry, yes

[DilumAluthge]

No worries at all.

Linking this to the main issue.

[DilumAluthge]

Duplicate of #549