Improving the UI of generics

[krilnon (Kyle Murray)]

@Michael_Ilseman

Joe_Groff:

var x: any Collection = [1, 2, 3]

I really like the disambiguation and syntactic clarity of saying any Collection . It also clearly follows the orthogonality of generics and existentials.

A bit of an aside: Didn't we just preclude any from being a future keyword in SE-0251?

The Core Team also considered that this use of any and all will likely prevent their future use as keywords.

[Accepted with Modifications] SE-0251: SIMD Additions

The review for SE-0251: SIMD Additions ran through April 1st. There was very little formal feedback in the review. SIMD is a relatively niche topic, and this is a relatively rarefied extension to the SIMD APIs, so it's unsurprising that most people didn't feel any need to express an opinion about it, and that's fine. However, as a frequent review manager, I'd like to encourage people who do have an opinion about a proposal to always write at least some formal feedback on it; even something as…