setUpFunction code should be located together with the corresponding runFunction code, so that we can verify them at a glance. However, we can't really do that yet, and doing the setUp for all tests in bulk makes it less likely that we make a mistake in matching up tests with their corresponding setups. :/
WordCount shows significant variance between iterations, which is apparently caused by the initialization of someAlphanumerics and asciiWords/utf16Words leaking into the measured part of the benchmark.
Making sure these variables are initialized before we start measuring elapsed time stabilizes the results.
