name funcitons using labels

[Raynos]

Any type can be labeled using the labeling syntax. We should favor labeling function over the named function syntax.

This is kind of like only using var foo = function () {} and no function declarations.

Favoring the label syntax removes a permutation from jsig and simplifies it.

cc @jden @Matt-Esch

[junosuarez]

Does this just add the labeled function syntax or also remove the named function syntax? I like the consistency that the label syntax introduces.

[junosuarez]

On another read-through, answered my own question: it removes named functions in favor of consistent labels.