Fix duplicated comments on JSX super classes (#20211)

changelog_unreleased/javascript/20211.md

@@ -0,0 +1,16 @@
+#### Fix duplicated comments on JSX super classes (#20211 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+class A extends (/* c */ <div />) {}
+class B extends (<div /> /* c */) {}
+
+// Prettier stable
+class A extends /* c */ (/* c */ <div />) {}
+class B extends (<div /> /* c */) /* c */ {}
+
+// Prettier main
+class A extends (/* c */ <div />) {}
+class B extends (<div /> /* c */) {}
+```