Squashes warning raised by controller specs

[Fixes #785]

Author: alindeman

Changelog.md

@@ -1,6 +1,11 @@
 ### Development
 [full changelog](http://github.com/rspec/rspec-rails/compare/v2.14.0...master)
 
+Bug fixes
+
+* Fixes "warning: instance variable @orig\_routes not initialized" raised by
+  controller specs when `--warnings` are enabled. (Andy Lindeman)
+
 ### 2.14.0 / 2013-07-06
 [full changelog](http://github.com/rspec/rspec-rails/compare/v2.14.0.rc1...v2.14.0)
 

lib/rspec/rails/example/controller_example_group.rb

@@ -135,7 +135,7 @@ def bypass_rescue
     def method_missing(method, *args, &block)
       if @routes && @routes.named_routes.helpers.include?(method)
         controller.send(method, *args, &block)
-      elsif @orig_routes && @orig_routes.named_routes.helpers.include?(method)
+      elsif defined?(@orig_routes) && @orig_routes && @orig_routes.named_routes.helpers.include?(method)
         controller.send(method, *args, &block)
       else
         super