UT failure in tests._base.NodeList

[peller]

confirmed on FF2 and IE6

    _AssertFailure: http://archive.dojotoolkit.org/nightly/dojotoolkit/dojo/dojo.js:133 doh._AssertFailure: assertEqual() failed: expected |1| but got |0|
 doh._AssertFailure
     ERROR IN:
  (function query() {var pnl = new dojo.NodeList(t);doh.is(c, pnl.query("span")[0]);doh.is(t, dojo.query("body").query(":last-child")[0]);doh.is(c, dojo.query("body").query(":last-child")[1]);doh.is(1, pnl.query().length);})
 FAILED test: ../../dojo/tests/_base/NodeList.html::t::query

[alex]

(In [11957]) fixes #5506. When query() is called without any params, the source list should be passed back. !strict

[liucougar]

(In [11959]) refs #5506: change styles to style