Fix incorrect signature for NamedScope#respond_to? [#852 state:resolved]

Signed-off-by: NPratik Naik <pratiknaik@gmail.com>

activerecord/lib/active_record/named_scope.rb

@@ -140,8 +140,8 @@ def empty?
         @found ? @found.empty? : count.zero?
       end
 
-      def respond_to?(method)
-        super || @proxy_scope.respond_to?(method)
+      def respond_to?(method, include_private = false)
+        super || @proxy_scope.respond_to?(method, include_private)
       end
 
       def any?

activerecord/test/cases/named_scope_test.rb

@@ -52,6 +52,11 @@ def test_scope_should_respond_to_own_methods_and_methods_of_the_proxy
     assert Topic.approved.respond_to?(:length)
   end
 
+  def test_respond_to_respects_include_private_parameter
+    assert !Topic.approved.respond_to?(:load_found)
+    assert Topic.approved.respond_to?(:load_found, true)
+  end
+
   def test_subclasses_inherit_scopes
     assert Topic.scopes.include?(:base)