refactor: remove tooltip from INTERACTIVE_ROLES per WAI-ARIA 1.2 §5.3.3

Per WAI-ARIA 1.2 §5.3.3 — Document Structure Roles:
  https://www.w3.org/TR/wai-aria-1.2/#tooltip

Tooltip is explicitly listed under document-structure roles (alongside
img, note, paragraph, etc.), not widget roles. The spec notes:
'Document structures are not usually interactive.'

jsx-a11y and lit-a11y agree — neither adds tooltip to their interactive-
role set (both add only toolbar).

The one test case expecting tooltip to be treated as interactive moves
accordingly. aria-query's superClass for tooltip is structure/section,
which the narrow widget-ancestor filter correctly excludes.

Author: johanrd

lib/utils/interactive-roles.js

@@ -10,14 +10,14 @@ const { roles } = require('aria-query');
 // aria-query's taxonomy, but supports `aria-activedescendant` and is widget-
 // like in practice. jsx-a11y and lit-a11y add it for the same reason.
 //
-// `tooltip` is also added — ARIA 1.2 doesn't cleanly categorize tooltip under
-// the widget taxonomy (aria-query's superClass is `structure/section`), but
-// tooltips with interactive content (close buttons, links) are common and our
-// existing test suite treats them as interactive.
+// `tooltip` is intentionally NOT added. Per WAI-ARIA 1.2 §5.3.3 — Document
+// Structure Roles (https://www.w3.org/TR/wai-aria-1.2/#tooltip), tooltip is
+// a document-structure role, not a widget; the spec says "document structures
+// are not usually interactive." jsx-a11y and lit-a11y agree.
 module.exports.INTERACTIVE_ROLES = buildInteractiveRoleSet();
 
 function buildInteractiveRoleSet() {
-  const result = new Set(['toolbar', 'tooltip']);
+  const result = new Set(['toolbar']);
   for (const [role, def] of roles) {
     if (def.abstract) {
       continue;

tests/lib/rules/template-no-invalid-interactive.js

@@ -66,9 +66,9 @@ ruleTester.run('template-no-invalid-interactive', rule, {
     // <summary> is natively interactive
     '<template><summary onclick={{this.toggle}}>Details</summary></template>',
 
-    // ARIA widget roles: scrollbar, tooltip, treeitem
+    // ARIA widget roles: scrollbar, treeitem
+    // (tooltip is not a widget per WAI-ARIA 1.2 §5.3.3 — document-structure role)
     '<template><div role="scrollbar" onclick={{this.scroll}}>Scroll</div></template>',
-    '<template><div role="tooltip" onclick={{this.show}}>Tip</div></template>',
     '<template><div role="treeitem" onclick={{this.select}}>Node</div></template>',
 
     // audio/video with controls are interactive