Support `RuboCop::AST::ComplexNode` #1369

Job	Run time
Prism	43s
Main Gem Specs \| RuboCop: master \| 3.4 \| parser_prism	1m 59s
Main Gem Specs \| RuboCop: v1.72.1 \| 2.7 \| parser_whitequark	2m 11s
Main Gem Specs \| RuboCop: master \| 3.4 \| parser_whitequark	1m 49s
Main Gem Specs \| RuboCop: master \| 2.7 \| parser_whitequark	2m 4s
Coding Style	37s
Specs \| 3.2	31s
Specs \| 3.1	31s
Specs \| 3.0	35s
Specs \| 2.7	41s
Specs \| 3.4	33s
Specs \| head	34s
Specs \| 3.3	32s
Specs \| truffleruby	1m 0s
Coverage \| 2.7	44s
Specs \| jruby	55s
Specs \| jruby-head	1m 1s
Specs "modern" \| 3.0	34s
Specs \| truffleruby-head	1m 16s
	18m 50s

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