Parse label-based addressing #879

Job	Run time
docker-master	1h 30m 20s
publish-standalone-dry-run	15s
test-standalone (master, dev, default)	1m 27s
build-js-of-ocaml (master, 4.11.1)	5m 31s
build-wasm-of-ocaml (master, 4.14.1)	16m 32s
generated-files (master)	22m 23s
standalone-haskell (master)	46m 39s
test-amd64	2h 20m 10s
validate-docker-master	2m 36s
deploy-js-wasm-of-ocaml	1m 16s
docker-check-all	1s
	5h 27m 10s

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