Fix bug with parens

Author: NotWoods

lib/rules/forward-ref-uses-ref.js

@@ -70,15 +70,12 @@ module.exports = {
                 {
                   * fix(fixer) {
                     const param = node.params[0];
-                    if (
-                      node.type === 'ArrowFunctionExpression'
-                      && !isParenthesized(context, param)
-                    ) {
+                    // If using shorthand arrow function syntax, add parentheses around the new parameter pair
+                    const shouldAddParentheses = node.type === 'ArrowFunctionExpression' && !isParenthesized(context, param);
+                    if (shouldAddParentheses) {
                       yield fixer.insertTextBefore(param, '(');
-                      yield fixer.insertTextAfter(param, ')');
                     }
-
-                    yield fixer.insertTextAfter(param, ', ref');
+                    yield fixer.insertTextAfter(param, `, ref${shouldAddParentheses ? ')' : ''}`);
                   },
                 }
               ),