added text method

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@4877 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

test/files/jvm/xml01.scala

@@ -21,6 +21,7 @@ object Test {
     override def hashCode() = 
       Utility.hashCode(prefix, label, attributes.hashCode(), scope.hashCode(), child);
     def child = Elem(null, "world", e, sc);
+	override def text = ""
     //def attributes = e;
   };