Duplicated f for Enzyme to handle closures #422

Job	Run time
DIT (Formalities) - 1	5m 21s
DIT (Zero) - 1	13m 49s
DI (Formalities) - 1	2m 33s
DIT (ForwardDiff) - 1	7m 41s
DI (Internals) - 1	1m 36s
DIT (Zygote) - 1	6m 39s
DI (Single/Diffractor) - 1	3m 19s
DIT (Zero) - 1.6	21m 27s
DI (Single/Enzyme) - 1	8m 19s
DIT (ForwardDiff) - 1.6	8m 30s
DI (Single/FastDifferentiation) - 1	4m 20s
DIT (Zygote) - 1.6	5m 1s
DI (Single/FiniteDiff) - 1	3m 25s
DI (Single/FiniteDifferences) - 1	3m 10s
DI (Single/ForwardDiff) - 1	12m 5s
DI (Single/PolyesterForwardDiff) - 1	3m 53s
DI (Single/ReverseDiff) - 1	5m 29s
DI (Single/Symbolics) - 1	5m 29s
DI (Single/Tapir) - 1	7m 48s
DI (Single/Tracker) - 1	3m 15s
DI (Single/Zygote) - 1	6m 55s
DI (Double/ChainRulesCore-Zygote) - 1	5m 37s
DI (Double/Enzyme-ForwardDiff) - 1	7m 3s
DI (Double/ForwardDiff-Zygote) - 1	4m 42s
DI (Double/ReverseDiff-Zygote) - 1	3m 28s
DI (Internals) - 1.6	2m 7s
DI (Single/FiniteDifferences) - 1.6	3m 55s
DI (Single/ForwardDiff) - 1.6	14m 15s
DI (Single/ReverseDiff) - 1.6	6m 51s
DI (Single/Tracker) - 1.6	4m 2s
DI (Single/Zygote) - 1.6	6m 18s
DI (Double/ChainRulesCore-Zygote) - 1.6	5m 15s
DI (Double/ForwardDiff-Zygote) - 1.6	6m 3s
	3h 29m 40s

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