Tests with constants, incremental compilation between Kotlin and Java.

Original commit: 9234ef3803

jps/jps-plugin/testData/incremental/withJava/kotlinUsedInJava/constantUnchanged/Usage.java

@@ -0,0 +1,7 @@
+import test.*;
+
+class Usage {
+    public static void main(String[] args) {
+        System.out.println(Klass.CONST + Klass.CONST);
+    }
+}