Properly hide definition directives in SDL #2606

Job	Run time
javascript_test	28s
test (Gemfile, 3.2)	1m 41s
lint	41s
test (Gemfile, 2.7)	1m 45s
mongodb_test (gemfiles/mongoid_6.gemfile)	1m 49s
postgres_test (gemfiles/rails_master.gemfile, 3.3, 1)	2m 5s
test (gemfiles/rails_7.0.gemfile, 3.1)	2m 12s
mongodb_test (gemfiles/mongoid_7.gemfile)	2m 1s
postgres_test (gemfiles/rails_7.1_postgresql.gemfile, 3.3)	1m 57s
test (gemfiles/rails_master.gemfile, 3.2)	2m 48s
test (gemfiles/rails_7.0.gemfile, 3.2)	2m 3s
system_tests	2m 13s
test (gemfiles/rails_7.1.gemfile, 3.3)	2m 9s
test (gemfiles/rails_master.gemfile, 3.3, 1)	2m 21s
test (gemfiles/rails_master.gemfile, 3.3, 1, 1)	2m 26s
	28m 39s

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