Get rid of optionalFrom

[plivesey]

Working on another project, and I think this has been fixed in Swift 3 (however, it doesn't seem to work in playgrounds...only real projects).

As in, the compiler is smart enough to pick the right function based on return type now.

[sberrevoets]

I just tried this and it looks like this indeed has been fixed, nice catch 👍

[keith]

I can't test this right now but I think in order to get rid of this, this would need to work without parens:

foo = try? map.from("bar") ?? "default"

[keith]

it looks like this order of operations still doesn't apply how we'd like it to (as of Xcode 8.1)

[keith]

Closing this one. But if we ever notice the operator precedence changing to solve this I'll definitely remove optionalFrom