amorde

Looks like it just stands for "find boot images", given the name of the function...

You can also shorten it to:

{ doSomething($0) }

One of the biggest causes of this for Objective-C was the lack of the Foundation framework (a higher-level interface to Core Foundation) - but this is being reimplemented in Swift. See https://github.com/apple/swift-corelibs-foundation

Of course UIKit will still be missing, but thats sort of expected.