AssociationCollection#any? takes a block [Michael Schoen]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5681 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/lib/active_record/associations/association_collection.rb

@@ -116,9 +116,13 @@ def length
       def empty?
         size.zero?
       end
-      
-      def any?
-        !empty?
+
+      def any?(&block)
+        if block_given?
+          method_missing(:any?, &block)
+        else
+          !empty?
+        end
       end
 
       def uniq(collection = self)