Test

Generic/ByteOrderMark: improve code coverage #1058

Job	Run time
Build Phar on PHP: 8.0	20s
Coverage: 5.4	4m 50s
Coverage: 7.2 with custom ini settings	1m 24s
Coverage: 8.3	1m 17s
PHP: 5.4	1m 5s
PHP: 5.5	1m 17s
PHP: 5.6	1m 9s
PHP: 7.0	43s
PHP: 7.1	35s
PHP: 7.2	35s
PHP: 7.3	36s
PHP: 7.4	51s
PHP: 8.0	34s
PHP: 8.1	35s
PHP: 8.2	1m 4s
PHP: 8.3	25s
PHP: 8.4	37s
PHP: 5.5 with custom ini settings	40s
PHP: 7.0 with custom ini settings	23s
coveralls-finish	3s
	19m 3s

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