Bugfix struct member read access (take 2) #6434

Job	Run time
Linux Arm	12m 56s
Docs	1m 45s
Linux x86-64	39m 31s
Multiarch Container Image	6m 26s
Mac Intel	25m 37s
Mac Arm	10m 35s
Repolinter	1m 9s
Stdlib	2m 28s
Windows	53m 24s
Mac Universal Binary	59s
Polkadot Integration test	5m 44s
Polkadot Integration test with subxt	7m 15s
Solana Integration test	3m 43s
Anchor Integration test	6m 59s
Visual Code Extension	2m 20s
Coverage report	3m 2s
	3h 3m 53s

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