Avoid unnecessary `send` #551

Job	Run time
Check the oldest supported RuboCop version	29s
Spec - 2.7	31s
Spec - JRuby	1m 32s
Check documentation syntax	16s
Spec - 3.0	1m 7s
Spec - 3.1	49s
Prism	32s
Spec - 3.2	24s
Spec - 3.3	23s
Spec - 3.4	16s
Spec - head	22s
	6m 41s

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