Docs not getting picked up by analyzer in some cases

[sorvell]

In the Polymer API docs, a number of annotations are being skipped by the analyzer.

Here are some examples:

• summary being omitted:

  • https://github.com/Polymer/polymer/blob/master/lib/mixins/element-mixin.html#L113
  • https://github.com/Polymer/polymer/blob/master/lib/legacy/legacy-element-mixin.html#L39
  • https://github.com/Polymer/polymer/blob/master/lib/elements/array-selector.html#L391

• functions not listed for Polymer.dom, e.g. https://github.com/Polymer/polymer/blob/master/lib/legacy/polymer.dom.html#L53