layout_for works again with objects as specified in the documentation and Rails 2.3 [#5357 state:resolved]

actionpack/lib/action_view/render/layouts.rb

@@ -47,11 +47,15 @@ module ActionView
     #     Hello David
     #   </html>
     #
-    def _layout_for(name = nil, &block) #:nodoc:
-      if !block || name
-        @_content_for[name || :layout].html_safe
+    def _layout_for(*args, &block) #:nodoc:
+      name = args.first
+
+      if name.is_a?(Symbol)
+        @_content_for[name].html_safe
+      elsif block
+        capture(*args, &block)
       else
-        capture(&block)
+        @_content_for[:layout].html_safe
       end
     end
 

actionpack/test/fixtures/layouts/_customers.erb

@@ -0,0 +1 @@
+<title><%= yield Struct.new(:name).new("David") %></title>

actionpack/test/fixtures/test/layout_render_object.erb

@@ -0,0 +1 @@
+<%= render :layout => "layouts/customers" do |customer| %><%= customer.name %><% end %>

actionpack/test/template/render_test.rb

@@ -252,6 +252,11 @@ module RenderTestCases
     assert_equal %(\n<title>title</title>\n\n),
       @view.render(:file => "test/layout_render_file.erb")
   end
+
+  def test_render_layout_with_object
+    assert_equal %(<title>David</title>),
+      @view.render(:file => "test/layout_render_object.erb")
+  end
 end
 
 class CachedViewRenderTest < ActiveSupport::TestCase