Complete branch coverage for more files #2393

Job	Run time
Oldest RuboCop: spec	20s
Edge RuboCop: internal_investigation	15s
Ruby 2.7: internal_investigation	29s
Edge RuboCop: spec	22s
Test coverage	20s
Ruby 2.7: spec	34s
Prism	32s
Ruby 3.0: internal_investigation	15s
RSpec 4	22s
Ruby 3.0: spec	19s
Confirm config and documentation	11s
Ruby 3.1: internal_investigation	17s
Ruby 3.1: spec	20s
Ruby 3.2: internal_investigation	15s
Ruby 3.2: spec	18s
Ruby 3.3: internal_investigation	12s
Ruby 3.3: spec	18s
Ruby ruby-head: internal_investigation	14s
Ruby ruby-head: spec	17s
Ruby jruby-9.4: internal_investigation	1m 22s
Ruby jruby-9.4: spec	1m 21s
	8m 53s

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