Move `sameError` to `fs-sim-test` #264

Job	Run time
cabal-check (9.6.4, 3.10.3.0, ubuntu-latest)	2m 38s
cabal-fmt (9.6.4, 3.10.3.0, ubuntu-latest)	2m 25s
stylish-haskell (9.6.4, 3.10.3.0, ubuntu-latest)	3m 9s
build (8.10.7, 3.10.3.0, ubuntu-latest)	2m 12s
build (8.10.7, 3.10.3.0, windows-latest)	3m 31s
build (8.10.7, 3.10.3.0, macOS-13)	3m 24s
build (9.2.8, 3.10.3.0, ubuntu-latest)	2m 0s
build (9.2.8, 3.10.3.0, windows-latest)	3m 5s
build (9.2.8, 3.10.3.0, macOS-13)	2m 47s
build (9.4.8, 3.10.3.0, ubuntu-latest)	2m 45s
build (9.4.8, 3.10.3.0, windows-latest)	3m 20s
build (9.4.8, 3.10.3.0, macOS-13)	6m 37s
build (9.6.4, 3.10.3.0, ubuntu-latest)	2m 54s
build (9.6.4, 3.10.3.0, windows-latest)	4m 23s
build (9.6.4, 3.10.3.0, macOS-13)	5m 5s
build (9.8.2, 3.10.3.0, ubuntu-latest)	1m 24s
build (9.8.2, 3.10.3.0, windows-latest)	3m 4s
build (9.8.2, 3.10.3.0, macOS-13)	5m 56s
	1h 0m 39s

Provide feedback