Updating docs for appendText and insertingAdjacentText to reflect implementation.

tools/dom/templates/html/impl/impl_Element.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of $LIBRARYNAME;
 
 class _ChildrenElementList extends ListBase<Element> {
   // Raw Element.
   final Element _element;
   final HtmlCollection _childElements;
@@ skipping 392 matching lines @@
    * Gets the position of this element relative to the client area of the page.
    */
   Rect get client => new Rect(clientLeft, clientTop, clientWidth, clientHeight);
 
   /**
    * Gets the offset of this element relative to its offsetParent.
    */
   Rect get offset => new Rect(offsetLeft, offsetTop, offsetWidth, offsetHeight);
 
   /**
-   * Adds the specified text as a text node after the last child of this
-   * element.
+   * Adds the specified text after the last child of this element.
    */
   void appendText(String text) {
     this.insertAdjacentText('beforeend', text);
   }
 
   /**
    * Parses the specified text as HTML and adds the resulting node after the
    * last child of this element.
    */
   void appendHtml(String text) {
@@ skipping 118 matching lines @@
   static String _determineTransitionEventType(EventTarget e) {
     // Unfortunately the normal 'ontransitionend' style checks don't work here.
     if (Device.isWebKit) {
       return 'webkitTransitionEnd';
     } else if (Device.isOpera) {
       return 'oTransitionEnd';
     }
     return 'transitionend';
   }
   /**
-   * Creates a text node and inserts it into the DOM at the specified location.
+   * Inserts text into the DOM at the specified location.
    *
    * To see the possible values for [where], read the doc for
    * [insertAdjacentHtml].
    *
    * See also:
    *
    * * [insertAdjacentHtml]
    */
   void insertAdjacentText(String where, String text) {
     if (JS('bool', '!!#.insertAdjacentText', this)) {
@@ skipping 500 matching lines @@
   const ScrollAlignment._internal(this._value);
   toString() => 'ScrollAlignment.$_value';
 
   /// Attempt to align the element to the top of the scrollable area.
   static const TOP = const ScrollAlignment._internal('TOP');
   /// Attempt to center the element in the scrollable area.
   static const CENTER = const ScrollAlignment._internal('CENTER');
   /// Attempt to align the element to the bottom of the scrollable area.
   static const BOTTOM = const ScrollAlignment._internal('BOTTOM');
 }