fix: error on unbound generics in structs #10264

Job	Run time
build-acvm-js	1m 30s
build-nargo	2m 37s
build-noirc-abi	1m 26s
build-noir-wasm	3m 52s
noirc_abi	1m 17s
ACVM JS (Browser)	1m 14s
ACVM JS (Node.js)	34s
Check external repo - zac-williamson/noir-edwards	8s
noir_codegen	54s
Example scripts	13s
Noir JS	1m 20s
noir_wasm	1m 43s
Integration Tests (Node)	2m 15s
Integration Tests (Browser)	1m 50s
End	1s
	20m 54s

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