Handle deferred route drawing in URL helpers DSL compiler

[bravehager]

Motivation

The URL helpers DSL compiler appears broken after rails/rails@e97db3b introduced deferred route drawing.

This leads to all helper methods being stripped from GeneratedUrlHelpersModule and GeneratedPathHelpersModule.

Implementation

Ensure routes are loaded before generating GeneratedUrlHelpersModule and GeneratedPathHelpersModule.

Tests

I was able to manually test this out in one of our Rails applications at @justworkshr.

Open to any ideas on how to unit test this behavior—it seems like the existing tests pass despite the change in Rails itself.

[andyw8]

Thanks! Wondering if we need a test for this... it seems fairly low risk. @egiurleo?

[egiurleo]

The UrlHelpersSpec tests don't even seem to fail when running them with Rails main (RAILS_VERSION=main bundle install && bin/test spec/tapioca/dsl/compilers/url_helpers_spec.rb). I've been trying to write a integration test for this but I think it would require pretty significant changes to the DSL integration spec, which doesn't seem worth it.

I'm testing against Shopify core to make sure this doesn't break anything.