KT-6349 J2K: Static members of enums should be converted to class object members

#KT-6349 Fixed

j2k/testData/fileOrElement/enum/companionObject.java

@@ -0,0 +1,12 @@
+public enum TestEnum {
+    A,
+    B;
+
+    public static TestEnum parse() { return A; }
+}
+
+class Go {
+    void fn() {
+        TestEnum x = TestEnum.parse();
+    }
+}

j2k/testData/fileOrElement/enum/companionObject.kt

@@ -0,0 +1,17 @@
+public enum class TestEnum {
+    A
+    B
+
+    companion object {
+
+        public fun parse(): TestEnum {
+            return A
+        }
+    }
+}
+
+class Go {
+    fun fn() {
+        val x = TestEnum.parse()
+    }
+}