Abstract toString into AbstractNode, deprecate the implementation

Log that the default implementation will be removed

pmd-java/src/main/java/net/sourceforge/pmd/lang/java/ast/AbstractJavaNode.java

@@ -78,10 +78,7 @@ public abstract class AbstractJavaNode extends AbstractNode implements JavaNode
         return comment;
     }
 
-    @Override
-    public String toString() {
-        return getXPathNodeName();
-    }
+
 
     @Override
     public final String getXPathNodeName() {

pmd-java/src/main/java/net/sourceforge/pmd/lang/java/ast/Comment.java

@@ -23,6 +23,7 @@ public abstract class Comment extends AbstractNode {
         }
     }
 
+    @Deprecated
     public String toString() {
         return getImage();
     }

pmd-java/src/main/java/net/sourceforge/pmd/lang/java/ast/JavadocElement.java

@@ -21,10 +21,7 @@ public class JavadocElement extends AbstractNode {
         return tag;
     }
 
-    @Override
-    public String toString() {
-        return getXPathNodeName();
-    }
+
 
 
     @Override