Fix comments inside JSX attributes (#14082)

Fixes https://github.com/prettier/prettier/issues/11242

changelog_unreleased/javascript/14082.md

@@ -0,0 +1,17 @@
+#### Fix formatting for comments inside JSX attribute (#14082 with by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+function MyFunctionComponent() {
+  <button label=/*old*/"new">button</button>
+}
+
+// Prettier stable
+Error: Comment "old" was not printed. Please report this error!
+
+// Prettier main
+function MyFunctionComponent() {
+  <button label=/*old*/ "new">button</button>;
+}
+```