Reduce random failures for DecisionTreeRegressor tests #3594
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This allows multiple trials for the
DecisionTreeRegressortests. I found them to be failing at the rate of about one every hundred times. With these fixes, I saw no failures at all with 1000 different random seeds.I also combined one of the tests that had both an
fmatand amatversion into a single test usingTEMPLATE_TEST_CASE(). That required some slight changes to some of the test tools.