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

compiler/testData/diagnostics/tests/enum/javaEnumWithFuns.fir.kt

@@ -0,0 +1,16 @@
+// FILE: A.java
+public enum A {
+    ENTRY,
+    ANOTHER;
+    
+    public String s() {
+        return "";
+    }
+}
+
+// FILE: test.kt
+
+fun main() {
+    val c = A.ENTRY
+    c.s()
+}