Refine dirty files computation in case of Java source changes

#KT-17621 In Progress

jps-plugin/testData/incremental/withJava/javaUsedInKotlin/changeSignatureStatic/JavaClass.java.new

@@ -0,0 +1,8 @@
+public class JavaClass {
+    public static String foo() {
+        return "";
+    }
+
+    public static void bar() {
+    }
+}