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

compiler/testData/diagnostics/tests/declarationChecks/FunctionWithMissingNames.fir.kt

@@ -0,0 +1,26 @@
+@Target(AnnotationTarget.TYPE, AnnotationTarget.FUNCTION)
+annotation class a
+interface A
+interface B
+
+fun () {}
+fun A.() {}
+
+@a fun () {}
+fun @a A.() {}
+
+class Outer {
+    fun () {}
+    fun B.() {}
+
+    @a fun () {}
+    fun @a A.() {}
+}
+
+fun outerFun() {
+    fun () {}
+    fun B.() {}
+
+    @a fun () {}
+    fun @a A.() {}
+}