Obsolete `StringAsInstanceDoubleConstant` in favor of `VerifiedDoubleReference` for constants only #2409

Job	Run time
Edge RuboCop: internal_investigation	16s
Confirm config and documentation	12s
Test coverage	21s
Edge RuboCop: spec	21s
Ruby 2.7: internal_investigation	24s
Ruby 2.7: spec	36s
Oldest RuboCop: spec	20s
Ruby 3.0: internal_investigation	12s
Prism	34s
RSpec 4	20s
Ruby 3.0: spec	19s
Ruby 3.1: internal_investigation	13s
Ruby 3.1: spec	21s
Ruby 3.2: internal_investigation	15s
Ruby 3.2: spec	20s
Ruby 3.3: internal_investigation	18s
Ruby 3.3: spec	20s
Ruby ruby-head: internal_investigation	10s
Ruby ruby-head: spec	22s
Ruby jruby-9.4: internal_investigation	1m 17s
Ruby jruby-9.4: spec	1m 22s
	8m 53s

Provide feedback