fix: Allow type aliases in main #4615

Job	Run time
build-nargo	2m 25s
build-noir-wasm	2m 25s
build-noirc-abi	2m 15s
build-acvm-js	2m 16s
noirc_abi	48s
noir-js-backend-barretenberg	46s
ACVM JS (Node.js)	46s
ACVM JS (Browser)	1m 17s
noir_codegen	1m 2s
Noir JS	1m 21s
Integration Tests (Node)	3m 37s
Integration Tests (Browser)	5m 3s
noir_wasm	1m 14s
End	1s
	25m 16s

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