Add RC1 blog article

[anatoliykmetyuk]

[skip ci]

Resolved

[romanowski]

I think we should mention that we settle on using scaladoc as build tool (together with scaladoc script). We've removed dotty-doc (or scala3-doc). It may also be important for some people that all Kotlin dependencies (Dokka, etc.) were removed from scaladoc.

[ShapelessCat]

@anatoliykmetyuk @odersky
It seems the "only if" is not right. Even though the code

List[String]("a", "bb", "ccc").sumBy(_.length)
List[String]("a", "bb", "ccc").sumBy[Int](_.length)

doesn't fit this context (they are not regular / non-extension method calls), they can work when I try them in Scala 3.0.0-RC1 REPL. If this is expected. I think it's better to edit this paragraph and keep all these 4 forms in this reference doc.

By the way, personally, the type arguments usage in the non-extension method call form looks weird.

Also, I think replace the "regular method" with "non-extension method" make this sentence clearer.
When I read this document before, since the code example doesn't fit the context, I didn't get the meaning of "regular". Also, since the extension method syntax is legal, it's also a kind of "regular" method.

[odersky]

Good point. We should add all 4 forms.Can someone make a PR for that?

[anatoliykmetyuk]

I’m not sure the List[String] form can be regarded as a way to pass type parameters to an extension method. We are not passing any parameters to the extension methods, we are helping the compiler to infer the type parameters of the callee precisely. It’s still on the compiler to then infer the type parameters for the extension method; I do not see how explicitly specifying the type parameter of the callee helps the latter task.

[ShapelessCat]

@odersky Here is the PR: #11451

[propensive]

Can we just say null?