use builtin memory assertion #134

Job	Run time
CS (8.2)	14s
Coverage (ubuntu-latest, 8.2, lowest)	8m 27s
BlackBox (ubuntu-latest, 8.2, lowest)	21m 11s
Coverage (ubuntu-latest, 8.2, highest)	8m 46s
Psalm (8.2, lowest)	22s
BlackBox (ubuntu-latest, 8.2, highest)	16m 45s
Coverage (ubuntu-latest, 8.3, lowest)	8m 3s
Psalm (8.2, highest)	17s
Coverage (ubuntu-latest, 8.3, highest)	7m 29s
BlackBox (ubuntu-latest, 8.3, lowest)	15m 41s
Psalm (8.3, lowest)	16s
BlackBox (ubuntu-latest, 8.3, highest)	22m 6s
Psalm (8.3, highest)	21s
	1h 49m 58s

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