Issues with JSDoc types missing braces.

[jgiles]

The Closure compiler apparently accepts JSDoc like this:

/**
 * Immutable empty node list.
 * @constructor
 * @extends goog.ds.BasicNodeList
 */
goog.ds.EmptyNodeList = function() {

Example taken from the annotation documentation

goog.ds.BasicNodeList is not contained in braces.

Doctrine doesn't seem to like this, and does not populate the type field for that extends tag.