BUG#AC-1279- Pencil icon has no textual alternative (Catalog - Products detail - Accordions)

Author: glo80326

app/code/Magento/Ui/view/base/web/templates/form/fieldset.html

@@ -23,14 +23,22 @@
             <span translate="label"></span>
             <span class="admin__page-nav-item-messages" if="collapsible">
                 <span class="admin__page-nav-item-message _changed">
-                    <span class="admin__page-nav-item-message-icon"></span>
-                    <span class="admin__page-nav-item-message-tooltip"
+                    <span class="admin__page-nav-item-message-icon"
+                          role="tooltip"
+                          tabindex="0"
+                          aria-labelledby="changed-message-tooltip">
+                    </span>
+                    <span class="admin__page-nav-item-message-tooltip" id="changed-message-tooltip"
                           data-bind="i18n: 'Changes have been made to this section that have not been saved.'">
                     </span>
                 </span>
                 <span class="admin__page-nav-item-message _error">
-                    <span class="admin__page-nav-item-message-icon"></span>
-                    <span class="admin__page-nav-item-message-tooltip"
+                    <span class="admin__page-nav-item-message-icon"
+                          role="tooltip"
+                          tabindex="0"
+                          aria-labelledby="error-message-tooltip">
+                    </span>
+                    <span class="admin__page-nav-item-message-tooltip" id="error-message-tooltip"
                           data-bind="i18n: 'This tab contains invalid data. Please resolve this before saving.'">
                     </span>
                 </span>