deprecate vectorized ! and ~ in favor of dot syntax

[Sacha0]

With benefit of #20249, this pull request deprecates all remaining vectorized ! and ~ methods in favor of dot syntax (.!, .~). (.~ does not parse as a unary operator; the second commit changes that.) Best!

[StefanKarpinski]

I have to say there's something about unary operators that makes me feel like they should be vectorized. Of course, then we don't get loop fusion, but writing .!v just looks really odd.

[ararslan]

Having a unary operators be exempt from the "no vectorization without dot representation" ideal seems a little iffy. But at the same time, I have to agree that the dots for unary ops look weird wherever you put them, especially before the operator. (!.v isn't too terrible IMO.)

Regarding loop fusion, it seems that they could be special-cased to achieve loop fusion, but then that's two special cases for unary ops...

[Sacha0]

Rebased and now passing CI.

writing .!v just looks really odd

the dots for unary ops look weird [...] especially before the operator

I sympathize, hence #20540 for options next dev cycle. (Will clean that up later.) Best!

[tkelman]

lgtm