Move error state to under extensions #7

Job	Run time
Static analysis	57s
tests (8.0, 5.4.*, lowest, none)	27s
Coding Standard	1m 25s
tests (8.0, 5.4.*, highest, none)	35s
tests (8.0, 6.0.*, lowest, none)	35s
tests (8.0, 6.0.*, highest, none)	31s
tests (8.1, 5.4.*, lowest, none)	1m 33s
tests (8.1, 5.4.*, highest, none)	1m 40s
tests (8.1, 6.0.*, lowest, none)	24s
tests (8.1, 6.0.*, highest, none)	43s
tests (8.1, 6.2.*, lowest, none)	28s
tests (8.1, 6.2.*, highest, none)	27s
tests (8.1, 6.4.*, lowest, none)	42s
tests (8.1, 6.4.*, highest, none)	36s
tests (8.2, 5.4.*, lowest, none)	25s
tests (8.2, 5.4.*, highest, none)	37s
tests (8.2, 6.0.*, lowest, none)	38s
tests (8.2, 6.0.*, highest, none)	1m 2s
tests (8.2, 6.2.*, lowest, none)	1m 4s
tests (8.2, 6.2.*, highest, none)	30s
tests (8.2, 6.4.*, lowest, none)	54s
tests (8.2, 6.4.*, highest, none)	1m 5s
tests (8.0, 5.4.*, lowest, --dev symfony/validator doctrine/orm doctrine/annotations)	51s
tests (8.1, 5.4.*, lowest, pcov)	50s
	18m 59s

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