rubocop-rspec.yml in gitlab-styles-6.6.0 vs rubocop-rspec.yml in gitlab-styles-7.0.0

@@ -93,12 +93,13 @@
 RSpec/ImplicitExpect:
   Enabled: true
   EnforcedStyle: is_expected
 
 # Checks for the usage of instance variables.
+# https://docs.gitlab.com/ee/development/testing_guide/best_practices.html#subject-and-let-variables
 RSpec/InstanceVariable:
-  Enabled: false
+  Enabled: true
 
 # Checks for `subject` definitions that come after `let` definitions.
 RSpec/LeadingSubject:
   Enabled: false
 
@@ -155,6 +156,6 @@
 RSpec/SubjectStub:
   Enabled: false
 
 # Prefer using verifying doubles over normal doubles.
 RSpec/VerifiedDoubles:
-  Enabled: false
+  Enabled: true