Tweak event index entries for pointercancel and drag events

The pointercancel event actually uses the PointerEvent interface, not Event, and it can also fire at Text nodes.

Similarly, the dragstart, drag, and dragend events may also fire at Text nodes.

source

@@ -80752,7 +80752,7 @@ dictionary <dfn dictionary>DragEventInit</dfn> : <span>MouseEventInit</span> {
    <tbody>
 
     <tr>
-     <td><dfn event for="GlobalEventHandlers"><code data-x="event-dnd-dragstart">dragstart</code></dfn></td>
+     <td><dfn event for="GlobalEventHandlers,Text"><code data-x="event-dnd-dragstart">dragstart</code></dfn></td>
      <td><span>Source node</span></td>
      <td>&#x2713; Cancelable</td>
      <td><span data-x="concept-dnd-rw">Read/write mode</span>
@@ -80761,7 +80761,7 @@ dictionary <dfn dictionary>DragEventInit</dfn> : <span>MouseEventInit</span> {
     </tr>
 
     <tr>
-     <td><dfn event for="GlobalEventHandlers"><code data-x="event-dnd-drag">drag</code></dfn></td>
+     <td><dfn event for="GlobalEventHandlers,Text"><code data-x="event-dnd-drag">drag</code></dfn></td>
      <td><span>Source node</span></td>
      <td>&#x2713; Cancelable</td>
      <td><span data-x="concept-dnd-p">Protected mode</span>
@@ -80806,7 +80806,7 @@ dictionary <dfn dictionary>DragEventInit</dfn> : <span>MouseEventInit</span> {
     </tr>
 
     <tr>
-     <td><dfn event for="GlobalEventHandlers"><code data-x="event-dnd-dragend">dragend</code></dfn></td>
+     <td><dfn event for="GlobalEventHandlers,Text"><code data-x="event-dnd-dragend">dragend</code></dfn></td>
      <td><span>Source node</span></td>
      <td>&mdash;</td>
      <td><span data-x="concept-dnd-p">Protected mode</span>
@@ -127901,8 +127901,8 @@ INSERT INTERFACES HERE
 
     <tr> <!-- pointercancel -->
      <td> <span><code data-x="event-pointercancel">pointercancel</code></span>
-     <td> <code>Event</code>
-     <td> Elements
+     <td> <code>PointerEvent</code>
+     <td> Elements and <code>Text</code> nodes
      <td> Fired at the <span>source node</span> when the user attempts to initiate a drag-and-drop operation.
 
     <tr> <!-- popstate -->