Converter:

Use formatter in converter tests
Reformat test data

j2k/tests/testData/ast/class/privateInit.kt

@@ -1,4 +1,4 @@
 public open class MyClass() {
-private fun init(arg1 : Int, arg2 : Int, arg3 : Int) {
-}
+    private fun init(arg1: Int, arg2: Int, arg3: Int) {
+    }
 }