Rails/WhereMissing fails on join that calls a method

[tinynumbers]

Seeing two errors in the Rails/WhereMissing inspections in my codebase.

Here are the two spots in the code where it fails:

model_1.rb:

    def query
      other_models
        .left_outer_joins(left_outer_joins)
        #----------------^ fails here
    end

other_models is a related has_many model; left_outer_joins is a method on the same model.

model_2.rb:

      def call
        initial_query
          .joins(left_joins)
        #-------^ fails here
      end

initial_query and left_joins are methods on the same model.

---

Expected behavior

The two examples above should not cause Rails/WhereMissing to fail.

Actual behavior

Running Rubocop results in the following output:

2 errors occurred:
An error occurred while Rails/WhereMissing cop was inspecting /.../app/models/model_1.rb:36:26.
An error occurred while Rails/WhereMissing cop was inspecting /.../app/models/model_2.rb:17:17.

No cops failed and all other inspections run properly.

Steps to reproduce the problem

1. Create a minimal Rails app (rails new app_name --minimal)
2. Add rubocop and robocop-rails to the group :development, :test in Gemfile and run bundle install:

    gem 'rubocop', require: false
    gem 'rubocop-rails', require: false
   

3. Add a minimal .rubocop.yml as follows:

   require:
     - rubocop-rails
   
   AllCops:
     TargetRubyVersion: 2.7
     NewCops: enable
   
   Style/Documentation:
     Enabled: false
   Metrics/CyclomaticComplexity:
     Enabled: false
   Metrics/PerceivedComplexity:
     Enabled: false
   Metrics/MethodLength:
     Enabled: false
   Layout/LineLength:
     Enabled: false

4. Add two models:

   bin/rails generate model user name:string
   bin/rails generate model product name:string user:references
   

5. Auto-correct with bundle exec rubocop -A - lots of corrections, but no errors.
6. Modify the User model as follows:

   class User < ApplicationRecord
     has_many :products, dependent: :nullify
   
     def query
       products.left_outer_joins(left_outer_joins)
       #------------------------^ fails here
     end
   
     private
   
     def left_outer_joins
       []
     end
   end

7. Run bundle exec rubocop and you'll see the error:

❯ bundle exec rubocop
Inspecting 32 files
................................

32 files inspected, no offenses detected
An error occurred while Rails/WhereMissing cop was inspecting /Users/abcde/rubocop-error/app/models/user.rb:7:30.
To see the complete backtrace run rubocop -d.

1 error occurred:
An error occurred while Rails/WhereMissing cop was inspecting /Users/abcde/rubocop-error/app/models/user.rb:7:30.
Errors are usually caused by RuboCop bugs.
Please, report your problems to RuboCop's issue tracker.
https://github.com/rubocop/rubocop/issues

Mention the following information in the issue report:
1.58.0 (using Parser 3.2.2.4, rubocop-ast 1.30.0, running on ruby 2.7.8) +server [arm64-darwin22]```

## RuboCop version

1.58.0 (using Parser 3.2.2.4, rubocop-ast 1.30.0, running on ruby 2.7.8) +server [arm64-darwin22]
  - rubocop-rails 2.22.2