Reviewed by Richard.

    Reviewed by Richard.

	<rdar://problem/3889655> HTMLCollectionImpl should use traverseNextNode to improve speed and save recursion

	* khtml/html/html_miscimpl.cpp:
        (HTMLCollectionImpl::calcLength):
        (HTMLCollectionImpl::getItem):
        (HTMLCollectionImpl::item):
        (HTMLCollectionImpl::nextItem):
        (HTMLCollectionImpl::getNamedItem):
        (HTMLCollectionImpl::namedItem):
        (HTMLCollectionImpl::nextNamedItemInternal):
        (HTMLFormCollectionImpl::nextNamedItemInternal):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8060 268f45cc-cd09-0410-ab3c-d52691b4dbfc