Rough implementations of IRs for all stages #3211

Job	Run time
check-changes	19s
ran-none	0s
start-nix-linux-aarch64-build-default-test / nix-linux-arm64	18s
start-nix-linux-x86-64-tests / nix-linux-x86	26m 31s
start-macos-x86-64-tests / test-rust-macos-x86-64	26m 32s
start-nix-linux-aarch64-cargo-build-test / nix-linux-arm64	26m 28s
start-nix-macos-apple-silicon-tests / nix-apple-silicon	26m 30s
start-fuzzer-tests / Fuzz test parser (allowed to fail). Do check this if you've made changes to the parser.	2m 25s
start-ubuntu-x86-64-nix-tests-debug / cargo test debug nix	21m 11s
start-ubuntu-x86-64-tests / test zig, rust, wasm...	23m 33s
start-windows-release-build-test / windows-release-build	14m 21s
start-roc-benchmarks / benchmark roc programs	1s
start-windows-tests / windows-test-subset	23m 21s
ran-full	1s
finish	1s
	3h 11m 32s

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