Minor: Unit.VALUE -> Unit in Java code.

idea/tests/org/jetbrains/jet/completion/AbstractMultiFileJvmBasicCompletionTest.java

@@ -43,7 +43,7 @@ public abstract class AbstractMultiFileJvmBasicCompletionTest extends KotlinComp
                                 return myItems;
                             }
                         });
-                        return Unit.VALUE;
+                        return Unit.instance$;
                     }
                 }
         );

idea/tests/org/jetbrains/jet/plugin/stubs/AbstractLazyResolveByStubTest.java

@@ -63,7 +63,7 @@ public abstract class AbstractLazyResolveByStubTest extends KotlinCodeInsightTes
                     @Override
                     public Unit invoke() {
                         performTest(path, checkPrimaryConstructors, checkPropertyAccessors);
-                        return Unit.VALUE;
+                        return Unit.instance$;
                     }
                 }
         );

idea/tests/org/jetbrains/jet/plugin/stubs/AbstractMultiFileHighlightingTest.java

@@ -47,7 +47,7 @@ public abstract class AbstractMultiFileHighlightingTest extends KotlinCompletion
                     @Override
                     public Unit invoke() {
                         checkHighlighting(myEditor, true, false);
-                        return Unit.VALUE;
+                        return Unit.instance$;
                     }
                 }
         );