Move `sameError` to `fs-sim-test` #261

Job	Run time
cabal-fmt (9.6.4, 3.10.3.0, ubuntu-latest)	2m 25s
build (8.10.7, 3.10.3.0, ubuntu-latest)	2m 11s
cabal-check (9.6.4, 3.10.3.0, ubuntu-latest)	2m 18s
stylish-haskell (9.6.4, 3.10.3.0, ubuntu-latest)	2m 25s
build (8.10.7, 3.10.3.0, windows-latest)	2m 18s
build (8.10.7, 3.10.3.0, macOS-13)	2m 21s
build (9.2.8, 3.10.3.0, ubuntu-latest)	2m 5s
build (9.2.8, 3.10.3.0, windows-latest)	2m 15s
build (9.2.8, 3.10.3.0, macOS-13)	2m 21s
build (9.4.8, 3.10.3.0, ubuntu-latest)	2m 31s
build (9.4.8, 3.10.3.0, windows-latest)	2m 18s
build (9.4.8, 3.10.3.0, macOS-13)	2m 19s
build (9.6.4, 3.10.3.0, ubuntu-latest)	2m 25s
build (9.6.4, 3.10.3.0, windows-latest)	2m 16s
build (9.6.4, 3.10.3.0, macOS-13)	2m 20s
build (9.8.2, 3.10.3.0, ubuntu-latest)	1m 20s
build (9.8.2, 3.10.3.0, windows-latest)	2m 9s
build (9.8.2, 3.10.3.0, macOS-13)	2m 20s
	40m 37s

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