allow propertyset to use typedefs mappers directly

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277272 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/types/PropertySet.java

@@ -155,6 +155,15 @@ public class PropertySet extends DataType {
         return _mapper;
     }
 
+    /**
+     * A nested filenamemapper
+     * @param fileNameMapper the mapper to add
+     * @since Ant 1.6.3
+     */
+    public void add(FileNameMapper fileNameMapper) {
+        createMapper().add(fileNameMapper);
+    }
+
     public void setDynamic(boolean dynamic) {
         assertNotReference();
         this.dynamic = dynamic;