Java to Kotlin converter: added blank line between main method and class

j2k/tests/testData/ast/function/main2.kt

@@ -4,4 +4,5 @@ public class A {
         }
     }
 }
+
 fun main(args: Array<String>) = A.main(args)

j2k/tests/testData/ast/function/mainAndNullabilitySetting.kt

@@ -5,4 +5,5 @@ public class A {
         }
     }
 }
+
 fun main(args: Array<String>) = A.main(args)