4.0 | Variable sniffs: minor performance tweak #1468

Job	Run time
Build Phar on PHP: 8.0	30s
Coverage: 5.4	19m 32s
Coverage: 7.2 with custom ini settings	4m 50s
Coverage: 8.3	3m 19s
PHP: 5.4	1m 9s
PHP: 5.5	5m 6s
PHP: 5.6	4m 10s
PHP: 7.0	1m 16s
PHP: 7.1	1m 22s
PHP: 7.2	1m 8s
PHP: 7.3	50s
PHP: 7.4	1m 27s
PHP: 8.0	55s
PHP: 8.1	51s
PHP: 8.2	47s
PHP: 8.3	38s
PHP: 8.4	46s
PHP: 5.5 with custom ini settings	4m 30s
PHP: 7.0 with custom ini settings	57s
coveralls-finish	4s
	54m 7s

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