Highlighting issue in arrays

[keith]

This statement currently has pretty funky highlighting:

import PackageDescription

let package = Package(
    name: "hypem",
    dependencies: [
        .Package(url: "https://github.com/lyft/mapper.git", versions: Version(2,0,0)..<Version(2,2,0)),
        .Package(url: "https://github.com/Alamofire/Alamofire.git", versions: Version(2,0,0)..<Version(2,2,0)),
    ]
)