Test that correctness tests fail when they need to

[gdalle]

The missing @test macros here

DifferentiationInterface.jl/DifferentiationInterfaceTest/src/tests/correctness_eval.jl

Lines 491 to 496 in 24fbefc

	for b in eachindex(scen.res1)
	res1_out1_val[b] ≈ scen.res1[b]
	res1_out2_val[b] ≈ scen.res1[b]
	res1_out1_noval[b] ≈ scen.res1[b]
	res1_out2_noval[b] ≈ scen.res1[b]
	end

would have been caught with such a test