Add GHC.Maybe edits in tests #100

Job	Run time
pre_check	7s
Installing Coq dependencies (ubuntu-latest, 4.07.1, 8.10.2)	22m 19s
Cross building hs-to-coq with multiple GHC versions (ubuntu-latest, 8.4.3, lts-12.26)	11m 25s
Installing Haskell dependencies (ubuntu-latest, 8.4.3, lts-12.0)	12m 3s
Cross building hs-to-coq with multiple GHC versions (ubuntu-latest, 8.4.3, lts-14.27)	13m 43s
Cross building hs-to-coq with multiple GHC versions (ubuntu-latest, 8.4.3, lts-16.31)	11m 36s
Cross building hs-to-coq with multiple GHC versions (ubuntu-latest, 8.4.3, lts-18.10)	12m 47s
Translation (ensures convenience copy is up-to-date) (ubuntu-latest, 8.4.3, lts-12.0, 4.07.1, 8.1...	4m 0s
Testing containers extraction (ubuntu-latest, 8.4.3, lts-12.0, 4.07.1, 8.10.2)	6h 0m 14s
Tests, base tests, and other examples (ubuntu-latest, 8.4.3, lts-12.0, 4.07.1, 8.10.2)	6h 0m 19s
Testing base, containers, transformers, GHC, etc. (ubuntu-latest, 4.07.1, 8.10.2)	6h 0m 14s
	19h 28m 47s

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