Improve dangling comment handling in flow hooks (#18630)

changelog_unreleased/flow/18630.md

@@ -0,0 +1,32 @@
+#### Fix dangling comment print in hooks (#18630 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+hook A(
+  // comment  
+) {}
+declare hook B(// comment  
+  ): void
+type C = hook (// comment  
+)=> void
+
+// Prettier stable
+hook A() // comment
+{}
+declare hook B(): // comment
+void;
+type C = hook () => // comment
+void;
+
+// Prettier main
+hook A(
+  // comment
+) {}
+declare hook B(
+  // comment
+): void;
+type C = hook (
+  // comment
+) => void;
+```