[TASK] Move some tests for `Comment` to functional tests #1973

Job	Run time
PHP Lint (7.2)	18s
PHP Lint (7.3)	13s
PHP Lint (7.4)	17s
PHP Lint (8.0)	12s
PHP Lint (8.1)	12s
PHP Lint (8.2)	16s
PHP Lint (8.3)	35s
PHP Lint (8.4)	19s
Static Analysis (composer:normalize, 8.3)	40s
Static Analysis (php:fixer, 8.3)	26s
Static Analysis (php:stan, 8.3)	36s
Unit tests (7.2)	12s
Static Analysis (php:rector, 8.3)	29s
Unit tests (7.3)	17s
Unit tests (7.4)	12s
Unit tests (8.0)	10s
Unit tests (8.1)	11s
Unit tests (8.2)	16s
Unit tests (8.3)	22s
Unit tests (8.4)	21s
	6m 34s

Provide feedback