dijit.layout.layoutChildren should work on a set of raw DOM nodes, not just widgets

[alex]

today, layoutChildren assumes some properties on the children instances which make it impossible to simply pass a property-bag of DOM nodes (say, a dojo.NodeList? instance)

[alex]

(In [10160]) make layoutChildren() friendly for lists of DOM nodes (not just widgets). Also, make sure that capitalize() and size() aren't always re-defined should the interpreter be written poorly. Fixes #4121

[bill]

(In [10180]) Rollback part of [10160]. The bug description (refs #4121) is inaccurate: layoutChildren() already works on plain dom nodes, as explained in the function description and shown by, for example, TabContainer?.

Widgets must never access properties on the srcNodeRef. That's the parser's job. If you really need to process a dojo.NodeList? like this then call list.map(function(node){ return { domNode: node, layoutAlign: node.getAttribute("layoutAlign");})