For debugging, an Interval's toString() should be informative.

The RunBuddy posted to a RunQueue will call its Interval's
toString() method. If an Interval is created with a Runnable,
let's call the Runnable's toString().
We could also add a form of create() that takes a String for the name...


git-svn-id: https://samskivert.googlecode.com/svn/trunk@2676 6335cc39-0255-0410-8fd6-9bcaacd3b74c

src/java/com/samskivert/util/Interval.java

@@ -55,6 +55,10 @@ public abstract class Interval
             @Override public void expired () {
                 onExpired.run();
             }
+
+            @Override public void toString () {
+                return onExpired.toString();
+            }
         };
     }
 
@@ -71,6 +75,10 @@ public abstract class Interval
             @Override public void expired () {
                 onExpired.run();
             }
+
+            @Override public void toString () {
+                return onExpired.toString();
+            }
         };
     }