Function traverseAllChildrenImpl

* @param {?*} children Children tree container. * @param {!string} nameSoFar Name of the key path so far. * @param {!number} indexSoFar Number of children encountered until this point. * @param {!function} callback Callback to invoke with each child found. * @param {?*} traverseContext Used

(
	  children,
	  nameSoFar,
	  indexSoFar,
	  callback,
	  traverseContext
	)