Override `respond_to_missing?` instead of `respond_to?` when possible

This was almost every case where we are overriding `respond_to?` in a
way that mirrors a parallel implementation of `method_missing`. There is
one remaining case in Active Model that should probably do the same
thing, but had a sufficiently strange implementation that I want to
investigate it separately.

Fixes #26333.

2 files changed, 2 insertions, 2 deletions

diff --git a/actionpack/lib/action_dispatch/routing/routes_proxy.rb b/actionpack/lib/action_dispatch/routing/routes_proxy.rb
index 3592683136..ee847eaeed 100644
--- a/actionpack/lib/action_dispatch/routing/routes_proxy.rb
+++ b/actionpack/lib/action_dispatch/routing/routes_proxy.rb
@@ -19,7 +19,7 @@ module ActionDispatch
         end
       end
 
-      def respond_to?(method, include_private = false)
+      def respond_to_missing?(method, include_private = false)
         super || @helpers.respond_to?(method)
       end
 
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index f5ec28a9c2..0082b3d8cb 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -502,7 +502,7 @@ module ActionDispatch
         integration_session.default_url_options = options
       end
 
-      def respond_to?(method, include_private = false)
+      def respond_to_missing?(method, include_private = false)
         integration_session.respond_to?(method, include_private) || super
       end