Structuring name duplicate

[dcousens]

I'm not sure of exact name for this syntax, but [assuming ES6 is detected], should we allow both of these syntaxes:

{ x: x } and { x }?
Or should we force { x } if both the lhs and rhs match?

[feross]

Right now, we're not actively pushing people toward ES6 features, so I'm -1.

If we end up detecting ES6 (discussion here: #159) then we should recommend { x } over { x: x } - agreed.

[jokeyrhyme]

@dcousens ESLint calls this "object shorthand properties" and "object shorthand methods", and has an object-shorthand rule.