Re-enable Mooncake tests in mcmc/abstractmcmc

Author: penelopeysm

test/mcmc/abstractmcmc.jl

@@ -116,10 +116,7 @@ end
 
 @testset "External samplers" begin
     @testset "AdvancedHMC.jl" begin
-        # TODO(mhauru) The below tests fail with Mooncake, see
-        # https://github.com/TuringLang/Turing.jl/pull/2289.
-        # Once that is fixed, this should say `for adtype in ADUtils.adbackends`.
-        @testset "adtype=$adtype" for adtype in [AutoForwardDiff(), AutoReverseDiff()]
+        @testset "adtype=$adtype" for adtype in ADUtils.adbackends
             @testset "$(model.f)" for model in DynamicPPL.TestUtils.DEMO_MODELS
                 # Need some functionality to initialize the sampler.
                 # TODO: Remove this once the constructors in the respective packages become "lazy".