This replaces 'dom-text' and 'dom-texts', and is both more correct and
more efficient than them.
* lisp/dom.el (dom-text, dom-texts): Make obsolete in favor of...
(dom-inner-text--1, dom-inner-text): ... these new functions. Update
callers.
* doc/lispref/text.texi (Document Object Model): Update documentation to
refer to 'dom-inner-text'.
* etc/NEWS: Announce this change.
2e53c7d08b