mishoo/UglifyJS2 — pull request #193 by indutny (2013-04-29 11:05:25+00:00)
Title: mozilla-ast: unary is prefix, update is postfix

Fixes problems with esprima, because sometimes it generates following AST:

```js
{
type: 'UnaryExpression',
operator: '!',
argument: { ... }
}
```

and it gets translated into: `...!`