v0.23.9

Added

• Swift platform files: Foo+iOS.swift, Foo.macOS.swift and files in an iOS/ / macOS/ / watchOS/ / tvOS/ /
  visionOS/ folder are built for that platform and unknown on the other Apple platforms, when Xcode target membership
  does not say. A guess: it never makes a dead branch, and platforms.path_conventions: false turns it off (#230).

Changed

• Swift and Kotlin receivers are typed through call chains (shop.engine().run(), makeShop().engine()), locals
  initialised from one (let e = shop.engine()), Self return types (Sub.make() on a class func make() -> Self) and
  generic substitution (Garage<Engine>(…).get() with func get() -> T). Kotlin expression bodies (= Engine()) count
  as the return type. Fewer name-bound and candidate edges (#229, part of #109).
• #available branches are column-precise: if #available(…) { a() } else { b() } on one line and } else { b() }
  on the closing line no longer mark b as guarded; conditions after the check (, x.isOn) are (#230, part of #225).

Fixed

• Swift Self(…), implicit .init(…) (from the annotation or the declared return type) and nested-type initializers
  (Point.Delta(…)) are INSTANTIATES plus CALLS to the init (#231, part of #108).
• A bare Swift class func / class var is static, so calls through a subclass resolve (#229).