Add changelog

changelog_unreleased/typescript/14584.md

@@ -0,0 +1,31 @@
+#### Allow multiple decorators on same getter/setter (#14584 by @fisker)
+
+<!-- prettier-ignore -->
+```ts
+// Input
+class A {
+  @decorator()
+  get foo () {}
+
+  @decorator()
+  set foo (value) {}
+}
+
+// Prettier stable
+SyntaxError: Decorators cannot be applied to multiple get/set accessors of the same name. (5:3)
+  3 |   get foo () {}
+  4 |   
+> 5 |   @decorator()
+    |   ^^^^^^^^^^^^
+  6 |   set foo (value) {}
+  7 | }
+
+// Prettier main
+class A {
+  @decorator()
+  get foo() {}
+
+  @decorator()
+  set foo(value) {}
+}
+```