Refactor parsed declaration storage #17350

Job	Run time
build-reference-examples	3m 46s
build-sway-lib-core	3m 42s
build-sway-lib-std	3m 47s
build-forc-doc-sway-lib-std	5m 47s
build-forc-test-project	10m 12s
build-mdbook	8m 23s
build-sway-examples	3m 54s
cargo-build-workspace	8m 12s
cargo-clippy	4m 36s
cargo-fmt-check	14s
cargo-run-e2e-test	21m 5s
cargo-run-e2e-test-evm	8m 34s
cargo-toml-fmt-check	17s
forc-fmt-check-panic	4m 12s
forc-fmt-check-sway-examples	3m 36s
forc-fmt-check-sway-lib-core	3m 53s
forc-fmt-check-sway-lib-std	3m 48s
cargo-run-e2e-test-midenvm	8m 10s
cargo-test-lib-std	5m 58s
cargo-test-workspace	16m 30s
cargo-unused-deps-check	9m 57s
forc-pkg-fuels-deps-check	15s
forc-run-benchmarks	5m 56s
forc-unit-tests	4m 16s
pre-publish-check	0s
notify-slack-on-failure	3s
publish	0s
build-publish-master-image	0s
build-publish-release-image	0s
Build and upload forc binaries to release	0s
	2h 29m 3s

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