IDL namespace name should be <dfn>ed

[zcorpan]

<pre class=idl>
namespace CSS {
  DOMString escape(DOMString ident);
};
</pre>

{{CSS}}

->

LINK ERROR: No 'idl' refs found for 'CSS' that are marked for export.

generated HTML

<pre class="idl highlight def"><span class="kt">namespace</span> <span class="nv">CSS</span> {
  <span class="kt">DOMString</span> <a class="nv idl-code" data-link-type="method" href="#dom-css-escape" id="ref-for-dom-css-escape-1">escape</a>(<span class="kt">DOMString</span> <dfn class="nv idl-code" data-dfn-for="CSS/escape(ident)" data-dfn-type="argument" data-export="" id="dom-css-escape-ident-ident">ident<a class="self-link" href="#dom-css-escape-ident-ident"></a></dfn>);
};
</pre>

I had expected "CSS" to be <dfn>ed and {{CSS}} to work for referencing it.

[zcorpan]

w3c/csswg-drafts#437

[tabatkins]

Added!