Converter tests:

Add tests for preserving white spaces between class members

j2k/tests/testData/ast/formatting/staticMembersWithComments.kt

@@ -0,0 +1,28 @@
+open class F() {
+    class object {
+
+        //c1
+
+        /*c2*/
+
+        open fun f1() {
+        }
+
+
+        //c3
+
+
+
+
+        //c4
+
+        open fun f2() {
+        }
+        var i: Int? = 0
+
+        open fun f3() {
+        }
+
+        //c5
+    }
+}