Update dev-dependencies

Author: wooorm

package.json

@@ -43,11 +43,11 @@
     "remark-preset-wooorm": "^9.0.0",
     "rimraf": "^3.0.0",
     "tape": "^5.0.0",
-    "tsd": "^0.19.0",
+    "tsd": "^0.20.0",
     "type-coverage": "^2.0.0",
     "typescript": "^4.0.0",
     "unified": "^10.0.0",
-    "xo": "^0.47.0"
+    "xo": "^0.49.0"
   },
   "scripts": {
     "prepack": "npm run build && npm run format",

test.js

@@ -141,9 +141,9 @@ test('isElement', (t) => {
         root.children[0],
         /**
          * @this {ctx}
-         * @param {Element} a
-         * @param {number} b
-         * @param {Parent} c
+         * @param {Element} node
+         * @param {number|undefined|null} index
+         * @param {Parent|undefined|null} parent
          */
         function (node, index, parent) {
           st.equal(node, root.children[0], 'should pass `node` to test')