Add test for wrapping function without body

idea/testData/javaFacade/wrapFunInClassWithoutBody.kt

@@ -0,0 +1,5 @@
+package some
+
+open class Hello {
+    open fun <caret>hello() = "DoSomething"
+}

idea/tests/org/jetbrains/jet/plugin/javaFacade/JetJavaFacadeTest.java

@@ -51,6 +51,10 @@ public class JetJavaFacadeTest extends LightCodeInsightFixtureTestCase {
         doTestWrapMethod(false);
     }
 
+    public void testWrapFunInClassWithoutBody() {
+        doTestWrapMethod(true);
+    }
+
     public void testWrapFunInClassObject() {
         doTestWrapMethod(true);
     }