Converter:

Use formatter in converter tests
Reformat test data

j2k/tests/testData/ast/issues/kt-792-mixed.kt

@@ -1,7 +1,8 @@
 package demo
-open class Test(i : Int?) {
-open fun test() {
-var i : Int = 10
-Test(i)
-}
+
+open class Test(i: Int?) {
+    open fun test() {
+        var i: Int = 10
+        Test(i)
+    }
 }