[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/annotations/options/setterParam.fir.kt

@@ -0,0 +1,8 @@
+// KT-9145
+
+@Target(AnnotationTarget.CLASS)
+annotation class Ann
+
+var x: Int
+    get() = 1
+    set(@Ann private x) { }