correctly analyze register moves #469

Job	Run time
ci / Build	3m 21s
ci / Lint	1m 53s
ci / Test (0)	1m 19s
ci / Test (1)	2m 26s
ci / Typecheck	52s
ci / Test (2)	1m 37s
ci / Test (3)	1m 35s
ci / Test (4)	1m 54s
ci / Test (5)	2m 45s
ci / Test (6)	2m 17s
ci / Test (7)	42m 45s
ci / Test (8)	1m 13s
ci / Test (9)	5m 56s
ci / Publish Unit Tests Results	1s
	1h 9m 54s

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