Added tests with adding method to superclass.

jps-plugin/testData/incremental/withJava/kotlinUsedInJava/methodAddedInSuper/Sub.java

@@ -0,0 +1,5 @@
+public class Sub extends Super {
+    private void y() {
+
+    }
+}

jps-plugin/testData/incremental/withJava/kotlinUsedInJava/methodAddedInSuper/Super.kt

@@ -0,0 +1,4 @@
+public open class Super {
+    public fun x() {
+    }
+}

jps-plugin/testData/incremental/withJava/kotlinUsedInJava/methodAddedInSuper/Super.kt.new

@@ -0,0 +1,7 @@
+public open class Super {
+    public fun x() {
+    }
+
+    public fun y() {
+    }
+}

jps-plugin/testData/incremental/withJava/kotlinUsedInJava/methodAddedInSuper/build.log

@@ -0,0 +1,11 @@
+Cleaning output files:
+out/production/module/Super.class
+End of files
+Compiling files:
+src/Super.kt
+End of files
+Compiling files:
+src/Sub.java
+End of files
+COMPILATION FAILED
+java:ERROR:$PROJECT/src/Sub.java:2: y() in Sub cannot override y() in Super; overridden method is final